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Beam Therapeutics

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FY2022 Annual Report · Beam Therapeutics
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UNITED STATES 
SECURITIES AND EXCHANGE COMMISSION 
Washington, D.C. 20549 
FORM 10-K 

(Mark One) 
☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2022 
OR 

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE 

TRANSITION PERIOD FROM                 TO                  

Commission File Number 001-39208 

Beam Therapeutics Inc. 

(Exact name of Registrant as specified in its Charter) 

Delaware
(State or other jurisdiction of
incorporation or organization)

238 Main Street
Cambridge, MA
(Address of principal executive offices)

81-5238376
(I.R.S. Employer
Identification No.)

02142
(Zip Code)

Title of each class 
Common Stock, par value $0.01 per share

Registrant’s telephone number, including area code: 857-327-8775 
Securities registered pursuant to Section 12(b) of the Act: 

Trading
Symbol(s)
BEAM
Securities registered pursuant to Section 12(g) of the Act: None 

Name of each exchange
on which registered 
Nasdaq Global Select Market

Indicate by check mark if the Registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes  ☒    No ☐ 
Indicate by check mark if the Registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act.    Yes  ☐    No  ☒ 
Indicate by check mark whether the Registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for 
such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ☒    No  ☐ 
Indicate by check mark whether the Registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) 
during the preceding 12 months (or for such shorter period that the Registrant was required to submit such files).    Yes  ☒    No  ☐ 
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the 
definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. 

Large accelerated filer

Non-accelerated filer

☒

☐

Accelerated filer

Smaller reporting company

Emerging growth company

☐

☐

☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting 
standards provided pursuant to Section 13(a) of the Exchange Act.   ☐ 
Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 
404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report.  ☒
If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to 
previously issued financial statements. 
Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive 
officers during the relevant recovery period pursuant to § 240.10D-1(b). 
Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ☐  No  ☒ 
The aggregate market value of the voting and non-voting common stock held by non-affiliates of the registrant was $2.46 billion, based on the closing price of the registrant’s common stock on 
Nasdaq on June 30, 2022, the last business day of the registrant’s most recently completed second quarter. 
The number of shares of registrant’s common stock outstanding as of February 22, 2023 was 72,397,631.

 ☐

 ☐

Registrant incorporates by reference into Part III (Items 10, 11, 12, 13 and 14) of this Annual Report on Form 10-K portions of the Registrant’s definitive Proxy Statement for the 2023 Annual 
Meeting of Stockholders to be filed with the Securities and Exchange Commission pursuant to Regulation 14A.

DOCUMENTS INCORPORATED BY REFERENCE 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
 
 
 
 
 
 
 
Table of Contents 

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS
TRADEMARKS
MARKET AND INDUSTRY DATA
RISK FACTORS SUMMARY 

PART I
Item 1.
Item 1A.
Item 1B.
Item 2.
Item 3.
Item 4.

PART II
Item 5.
Item 6.
Item 7.
Item 7A.
Item 8.
Item 9.
Item 9A.
Item 9B.
Item 9C

PART III
Item 10.
Item 11.
Item 12.
Item 13.
Item 14.

PART IV
Item 15.
Item 16.

Business
Risk Factors
Unresolved Staff Comments
Properties
Legal Proceedings
Mine Safety Disclosures

Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities
[Reserved]
Management’s Discussion and Analysis of Financial Condition and Results of Operations
Quantitative and Qualitative Disclosures About Market Risk
Financial Statements and Supplementary Data
Changes in and Disagreements with Accountants on Accounting and Financial Disclosure
Controls and Procedures
Other Information
Disclosure Regarding Foreign Jurisdictions That Prevent Inspections

Directors, Executive Officers and Corporate Governance
Executive Compensation
Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
Certain Relationships and Related Transactions, and Director Independence
Principal Accounting Fees and Services

Exhibits, Financial Statement Schedules
Form 10-K Summary

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CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This Annual Report on Form 10-K contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, or 
the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act. Such forward-looking statements reflect, 
among other things, our current expectations and anticipated results of operations, all of which are subject to known and unknown risks, uncertainties and 
other factors that may cause our actual results, performance or achievements, market trends, or industry results to differ materially from those expressed or 
implied by such forward-looking statements. Therefore, any statements contained herein that are not statements of historical fact may be forward-looking 
statements and should be evaluated as such. Without limiting the foregoing, the words “anticipate,” “expect,” “suggest,” “plan,” “believe,” “intend,” 
“project,” “forecast,” “estimates,” “targets,” “projections,” “should,” “could,” “would,” “may,” “might,” “will,” and the negative thereof and similar words 
and expressions are intended to identify forward-looking statements. These forward-looking statements are subject to a number of important risks, 
uncertainties and assumptions, including those described in “Risk Factors Summary” and in “Risk Factors” in Part I, Item 1A of this report. Unless legally 
required, we assume no obligation to update any such forward-looking information to reflect actual results or changes in the factors affecting such forward-
looking information. These forward-looking statements reflect, among other things:

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our current expectations and anticipated results of operations; 

our expectations regarding the initiation, timing, progress and results of our clinical trials, including our Phase 1/2 clinical trial designed to 
assess the safety and efficacy of BEAM-101 for the treatment of sickle cell disease, which we refer to as our BEACON trial, and our 
anticipated Phase 1/2 clinical trial designed to assess the safety and efficacy of BEAM-201 for the treatment of relapsed, refractory T-cell 
acute lymphoblastic leukemia/T cell lymphoblastic lymphoma;

our expectations regarding the initiation, timing, progress and results of our research and development programs and preclinical studies, 
including our expectations that we will submit regulatory applications for BEAM-301 by late 2023 or in early 2024, and for BEAM-302 in 
early 2024;

our ability to develop and maintain a sustainable portfolio of product candidates; 

our ability to develop life-long, curative, precision genetic medicines for patients through base editing; 

our ability to create a hub for partnering with other companies;

our plans for preclinical studies for product candidates in our pipeline;

our ability to advance any product candidates that we may develop and successfully complete any clinical trials or preclinical studies, 
including the manufacture of any such product candidates;

our ability to pursue a broad suite of clinically validated delivery modalities;

our expectations regarding our ability to generate additional novel lipid nanoparticles that we believe could accelerate novel nonviral delivery 
of gene editing or other nucleic acid payloads to tissues beyond the liver and our ability to expand the reach of our programs;

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the scope of protection we are able to establish and maintain for intellectual property rights covering our product candidates and technology;

developments related to our competitors and our industry;

the expected timing, progress and success of our collaborations with third parties, including any future payments we may receive under our 
collaboration and license agreements, and our ability to identify and enter into future license agreements and collaborations;

developments related to base editing technologies;

our ability to successfully develop our delivery modalities and obtain and maintain approval for our product candidates;

our ability to successfully establish and maintain a commercial-scale current Good Manufacturing Practice, or cGMP, manufacturing facility 
and our expectations that we will initiate cGMP compliant operations in late 2023;

regulatory developments in the United States and foreign countries;

our ability to attract and retain key scientific and management personnel;

our expectations regarding the strategic and other potential benefits of our acquisition of Guide;

our estimates regarding the period over which we believe that our existing cash, cash equivalents and marketable securities, will be sufficient 
to fund our operating expenses and capital expenditure requirements; and

the impact on our business of macro-economic conditions, as well as the prevailing level of macro-economic, business, and operational 
uncertainty, including as a result of geopolitical events or other global or regional events such as the COVID-19 pandemic.

When we use the terms “Beam,” the “Company,” “we,” “us” or “our” in this Annual Report on Form 10-K, we mean Beam Therapeutics Inc. and its 
subsidiaries on a consolidated basis, unless the context indicates otherwise.

TRADEMARKS 

We use BEAM and other marks as trademarks in the United States and/or in other countries. This Annual Report on Form 10-K contains references to our 
trademarks and service marks and to those belonging to other entities. Solely for convenience, trademarks and trade names referred to in this report, 
including logos, artwork and other visual displays, may appear without the ® or TM symbols, but such references are not intended to indicate in any way 
that we will not assert, to the fullest extent under applicable law, our rights or the rights of the applicable licensor to these trademarks and trade names. We 
do not intend our use or display of other entities’ trade names, trademarks or service marks to imply a relationship with, or endorsement or sponsorship of 
us by, any other entity.

MARKET AND INDUSTRY DATA

Unless otherwise indicated, information contained in this Annual Report on Form 10-K concerning our industry and the markets in which we operate, 
including our general expectations, market position and market opportunity, is based on our management’s estimates and research, as well as industry and 
general publications and research, surveys and studies conducted by third parties. We believe that the information from these third-party publications, 
research, surveys and studies included in this Annual Report on Form 10-K is reliable. Management’s estimates are derived from publicly available 
information, their knowledge of our industry and their assumptions based on such information and knowledge, which we believe to be reasonable. This 
data involves a number of assumptions and limitations which are necessarily subject to a high degree of uncertainty and risk due to a variety of factors, 
including those described in “Risk Factors Summary” and “Risk Factors” in Part I, Item 1A of this report. These and other factors could cause our future 
performance to differ materially from our assumptions and estimates.

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RISK FACTORS SUMMARY

An investment in our common stock involves risks. You should consider carefully the following risks, which are discussed more fully in “Item 1.A. Risk 
Factors”, and all of the other information contained in this Annual Report on Form 10-K before investing in our common stock. These risks include, but are 
not limited to, the following:

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Base editing is a novel technology that is not yet clinically validated for human therapeutic use. The approaches we are taking to discover and 
develop novel therapeutics are unproven and may never lead to marketable products.

We have incurred significant losses since inception. We expect to incur losses for the foreseeable future and may never achieve or maintain 
profitability.

We will need substantial additional funding. If we are unable to raise capital when needed, we would be forced to delay, reduce, or eliminate 
our research and product development programs or future commercialization efforts.

Our short operating history may make it difficult for you to evaluate the success of our business to date and to assess our future viability.

We may not be successful in our efforts to identify and develop potential product candidates. If these efforts are unsuccessful, we may never 
become a commercial stage company or generate any revenues.

We are very early in our development efforts. Many of our product candidates are still in preclinical development or earlier stages and it will 
be many years before we or our collaborators commercialize a product candidate, if ever. If we are unable to advance our product candidates 
to and through clinical development, obtain regulatory approval and ultimately commercialize our product candidates, or experience 
significant delays in doing so, our business will be materially harmed.

If any of the product candidates we may develop or the delivery modalities we rely on cause serious adverse events, undesirable side effects 
or unexpected characteristics, such events, side effects or characteristics could delay or prevent regulatory approval of the product candidates, 
limit the commercial potential, or result in significant negative consequences following any potential marketing approval.

We face significant competition in an environment of rapid technological change, and there is a possibility that our competitors may achieve 
regulatory approval before us or develop therapies that are safer or more advanced or effective than ours, which may harm our financial 
condition and our ability to successfully market or commercialize any product candidates we may develop.

Public health epidemics or outbreaks, including COVID-19, could have a material adverse effect on our business, financial condition, results 
of operations and growth prospects.

We have not tested many of our proposed delivery modalities and product candidates in clinical trials and any favorable preclinical results are 
not predictive of results that may be observed in clinical trials.

Adverse public perception of genetic medicines, and gene editing and base editing in particular, may negatively impact regulatory approval 
of, and/or demand for, our potential products.

The gene editing field is relatively new and is evolving rapidly. We are focusing our research and development efforts on gene editing using 
base editing technology, but other gene editing technologies may be discovered that provide significant advantages over base editing, which 
could materially harm our business.

Regulatory requirements governing genetic medicines, and in particular any novel genetic medicines we may develop, have changed 
frequently and may continue to change in the future.

Genetic medicines are novel, and any product candidates we develop may be complex and difficult to manufacture. We could experience 
delays in satisfying regulatory authorities or production problems that result in delays in our development or commercialization programs, 
limit the supply of our product candidates we may develop, or otherwise harm our business.

We contract with third parties for the manufacture of materials for our research programs, preclinical studies and clinical trial and expect to 
continue to do so for at least a portion of the manufacturing process for our research programs, preclinical studies, clinical trials and for 
commercialization of any product candidates that we may develop. This reliance on third parties increases the risk that we will not have 
sufficient quantities of such materials, product candidates, or any medicines that we may develop and commercialize, or that such supply will 
not be available to us at an acceptable cost, which could delay, prevent, or impair our development or commercialization efforts.

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Because we are developing product candidates in the field of genetics medicines, a field that includes gene therapy and gene editing, in which 
there is little clinical experience, there is increased risk that the U.S. Food and Drug Administration, the European Medicines Agency or 
other regulatory authorities may not consider the endpoints of our clinical trials to provide clinically meaningful results and that these results 
may be difficult to analyze.

If we are unable to obtain and maintain patent protection for any product candidates we develop and for our technology, or if the scope of the 
patent protection obtained is not sufficiently broad, or if we or our licensors are unable to successfully defend our or our licensors’ patents 
against third-party challenges or enforce our or our licensors’ patents against third parties our competitors could develop and commercialize 
products and technology similar or identical to ours, and our ability to successfully commercialize any product candidates we may develop, 
and our technology may be adversely affected.

Our rights to develop and commercialize technology and product candidates are subject, in part, to the terms and conditions of licenses 
granted to us by others.

Third parties have asserted and may in the future assert that we, our employees, consultants, or advisors have wrongfully used or disclosed 
confidential information or misappropriated trade secrets.

The intellectual property landscape around gene editing technology, including base editing and delivery technology, is highly dynamic, and 
third parties may initiate legal proceedings alleging that we are infringing, misappropriating, or otherwise violating their intellectual property 
rights, the outcome of which would be uncertain and may prevent, delay or otherwise interfere with our product discovery and development 
efforts.

Our activities rely on information technology in our own systems and those of our business partners. These systems are subject to a wide and 
growing variety of cybersecurity risks that may adversely impact our business activities or our ability to engage in various transactions to 
support our business activities.

Our clinical research activities depend on the use and disclosure of personal data related to individuals participating in our clinical trials. The 
rules addressing this data are changing across the world, and these rules may adversely impact our ability to identify individuals for clinical 
trials or conduct our trials.

Our owned and in-licensed patents and other intellectual property may be subject to priority disputes or inventorship disputes or we may be 
subject to claims that we have infringed, misappropriated or otherwise violated the intellectual property of a third party and similar 
proceedings. If we or our licensors are unsuccessful in any of these proceedings, we may be required to obtain licenses from third parties, 
which may not be available on commercially reasonable terms or at all, or to cease the development, manufacture, and commercialization of 
one or more of the product candidates we may develop, which could have a material adverse impact on our business.

Unstable market and economic conditions may have serious adverse consequences on our business, financial condition and stock price. 

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Item 1. Business. 

Overview

PART I 

We are a biotechnology company committed to establishing the leading, fully integrated platform for precision genetic medicines. Our vision is to provide 
life-long cures to patients suffering from serious diseases. To achieve this vision, we have assembled a platform that includes a suite of gene editing and 
delivery technologies and are establishing internal manufacturing capabilities. 

Our suite of gene editing technologies is anchored by our proprietary base editing technology, which potentially enables a differentiated class of precision 
genetic medicines that target a single base in the genome without making a double-stranded break in the DNA. This approach uses a chemical reaction 
designed to create precise, predictable and efficient genetic outcomes at the targeted sequence. Our proprietary base editors have two principal components: 
(i) a clustered regularly interspaced short palindromic repeats, or CRISPR, protein, bound to a guide RNA, that leverages the established DNA-targeting 
ability of CRISPR, but is modified to not cause a double-stranded break, and (ii) a base editing enzyme, such as a deaminase, which carries out the desired 
chemical modification of the target DNA base. We believe this design contributes to a more precise and efficient edit compared to traditional gene editing 
methods, which operate by creating targeted double-stranded breaks in the DNA that can result in unwanted DNA modifications. We believe that the 
precision of our editors will dramatically increase the impact of gene editing for a broad range of therapeutic applications. 

We are advancing our base editing technology across three disease-area portfolios: hematology, immunology/oncology and genetic diseases. We are also 
pursuing a broad suite of both clinically validated and novel delivery modalities, depending on tissue type, including both ex vivo approaches in our 
hematology and immunology-oncology portfolios as well as in vivo approaches across our programs.

The elegance of the base editing approach combined with a tissue specific delivery modality provides the basis for a targeted, efficient, precise, and highly 
versatile gene editing system, capable of gene correction, gene modification, gene silencing or gene activation, and/or multiplex editing of several genes 
simultaneously. We are currently advancing a broad, diversified portfolio of base editing programs against distinct editing targets, utilizing the full range of 
our development capabilities. Furthermore, in addition to our portfolio, we are also pursuing an innovative, platform-based business model with the goal of 
further expanding our access to new technologies in genetic medicine and increasing the reach of our programs to more patients. Overall, we are seeking to 
build the leading integrated platform for precision genetic medicine, which may have broad therapeutic applicability and the potential to transform the field 
of precision genetic medicines.

We continue to make meaningful advancements across our programs. We are advancing two clinical stage programs, BEAM-101 and BEAM-201, and we 
are moving two additional development candidates, BEAM-301 and BEAM-302, toward clinical development:

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BEAM-101 is a patient-specific, autologous hematopoietic stem cell, or HSC, investigational therapy designed to offer a potentially best-in-
class profile, incorporating base edits that are intended to mimic single nucleotide polymorphisms seen in individuals with hereditary 
persistence of fetal hemoglobin, or HPFH. BEAM-101 aims to alleviate the effects of sickle cell disease or beta-thalassemia by increasing 
fetal hemoglobin, which is expected to increase functional hemoglobin production and, in the case of sickle cell disease, inhibit hemoglobin 
S polymerization. In November 2022, we announced that we enrolled the first patient in our Phase 1/2 clinical trial designed to assess the 
safety and efficacy of BEAM-101 for the treatment of sickle cell disease, which we refer to as our BEACON trial. The BEACON trial is 
expected to include an initial “sentinel” cohort of three patients, treated one at a time to confirm successful engraftment, followed by dosing 
in up to a total of 45 patients. The clinical trial is designed to initially include patients ages 18 to 35 with severe sickle cell disease who have 
received prior treatment with at least one disease-modifying agent with inadequate response or intolerance. Following mobilization, 
conditioning and treatment with BEAM-101, patients will be assessed for safety and tolerability, with safety endpoints including neutrophil 
and platelet engraftment. Patients will also be assessed for efficacy, with efficacy endpoints including the change from baseline in severe 
vaso-occlusive events, transfusion requirements, hemoglobin F levels, and quality of life assessments. We expect to complete enrollment in 
the sentinel cohort and initiate enrollment in the expansion cohort of the BEACON trial in 2023, and plan to report data from multiple 
patients from one or both cohorts in 2024.

BEAM-201 is a development candidate comprised of T cells derived from healthy donors that are simultaneously edited at TRAC, CD7, 
CD52 and PDCD1 and then transduced with a lentivirus encoding for an anti-CD7 chimeric antigen receptor, or CAR, that is designed to 
create allogeneic CD7 targeting CAR-T cells, resistant to both fratricide and immunosuppression. At the end of June 2022, we submitted an 
IND to the U.S. Food and Drug Administration, or FDA, for BEAM-201 for the treatment of relapsed, refractory T-cell acute lymphoblastic 
leukemia/T cell lymphoblastic lymphoma, or T-ALL/T-LL, a severe disease affecting children and adults, and potentially other CD7+ 
malignancies. In December 2022, we received clearance from the FDA for our IND for BEAM-201. We have initiated a first-in-human Phase 
1/2 clinical trial designed to evaluate the safety and efficacy of BEAM-201 in patients with relapsed/refractory 

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T-ALL/T-LL and we expect to dose the first patient in the trial by mid-2023. The Phase 1 portion of the trial is expected to include up to 48 
patients between the ages of 18 and 50, followed by a Phase 2 portion with approximately 48 patients. Key safety endpoints for the trial 
include treatment-emergent and treatment-related adverse events, and key efficacy endpoints include proportion of patients with complete or 
partial responses, proportion eligible for HSC transplant and proportion achieving minimal residual disease negative status. We believe that 
BEAM-201 is the first quadruple-edited, allogeneic CAR-T cell investigational therapy in clinical-stage development.

BEAM-301 is a liver-targeting LNP formulation of base editing reagents designed to correct the R83C mutation, the most prevalent disease-
causing mutation for, and the mutation which results in the most severe form of, glycogen storage disease 1a, or GSDIa. GSDIa is an 
autosomal recessive disorder caused by mutations in the G6PC gene that disrupt a key enzyme, glucose-6-phosphatase, or G6Pase, critical for 
maintaining glucose homeostasis. Inhibition of G6Pase activity results in low fasting blood glucose levels that can result in seizures and be 
fatal. Patients with this mutation typically require ongoing corn starch administration, without which they may enter into hypoglycemic shock 
within one to three hours. In November 2022, we announced that we had initiated IND-enabling studies for BEAM-301. By late 2023 or in 
early 2024, we plan to submit a regulatory application for BEAM-301 for authorization to initiate clinical trials for the program.

BEAM-302 is a liver-targeting LNP formulation of base editing reagents designed to offer a one-time treatment to genetically correct the 
E342K point mutation (PiZZ genotype), which is most commonly responsible for severe alpha-1 antitrypsin deficiency, or AATD. AATD is 
an inherited genetic disorder that can cause early onset emphysema and liver disease. In November 2022, we announced BEAM-302 as a 
development candidate, and in early 2024, we plan to submit a regulatory application for BEAM-302 for authorization to initiate clinical 
trials for the program.

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We also continue to advance numerous other programs in a range of therapeutic areas. We are leveraging our base editing capabilities to develop a 
potentially non-genotoxic approach to HSC transplantation, or HSCT, that combines antibody-based conditioning with multiplex gene edited HSCs called 
ESCAPE, or Engineered Stem Cell Antibody Paired Evasion. We have also achieved editing levels in vivo, in preclinical models, for the correction of the 
Q347X mutation, which is the second most prevalent mutation causing GSDIa, that could be clinically relevant if reproduced in humans. In addition, we 
are advancing approaches to treating Hepatitis B Virus, or HBV, infection using multiplex base editors to address viral rebound of HBV.

The modularity of our platform means that establishing preclinical proof-of-concept of base editing using a particular delivery modality will potentially 
reduce risk and accelerate the timeline for the development of additional product candidates targeting the same tissue. In some cases, a new product 
candidate may only require changing the guide RNA. Subsequent programs using the same delivery modality can also take advantage of shared capabilities 
and resources of earlier programs. 

Background on current methods in genetic medicines

The human genome has four types of bases found in DNA: adenine (A), cytosine (C), guanine (G), and thymine (T). Adenine pairs with thymine, and 
cytosine pairs with guanine. The genome is comprised of over three billion of these base pairs in two intertwining strands of DNA; the sequence of these 
bases encodes genes. In a living cell, these DNA sequences are continuously copied into short ribonucleic acid transcripts, called messenger RNA, or 
mRNA, which are then translated into proteins that perform the functions of life. By precisely modulating the DNA sequence, it is possible to develop 
different therapeutic approaches. One of these approaches involves correcting misspellings in genes, known as mutations, which can yield proteins that are 
dysfunctional or missing altogether, causing disease. An additional example involves modulating genes in immune cells that can improve the ability of 
these cells to kill certain cancers as, for example, in the case of CAR-T cells.

We believe we are well-positioned to accelerate progression of our base editing programs to clinical trials and through potential approval by leveraging the 
clinical, regulatory, and manufacturing advancements made to date in the field of genetic medicine as well as the significant internal development 
capabilities we have established. In addition, we believe the combination of our base editing technology and our proprietary delivery technologies has the 
potential to provide life-long cures after a single treatment by overcoming challenges associated with current methods in gene editing.

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Current challenges in gene editing

Gene editing works by disrupting, inserting, or modifying genes in the natural context of the genome. Most established gene editing methods rely on a class 
of enzymes, called nucleases, to make a double-stranded break in the DNA at a targeted location. These enzymes include CRISPR, Zinc Fingers, Arcuses, 
and TAL Nucleases, and, while these approaches have distinct technical features relative to each other, they each make the same type of edit and, therefore, 
share several similar limitations.

First, there is a lack of predictability in genetic outcomes when altering gene sequences with nucleases. The dominant, naturally-occurring DNA repair 
system that corrects double-stranded breaks within cells is called Non-Homologous End Joining, or NHEJ. This system can patch the broken ends of the 
chromosomes back together but will simultaneously insert or delete sequences at random near the location where the break occurs. While this NHEJ 
approach can be effective if the desired outcome is to knock out or switch off the whole gene, it does not allow for precise control of the specific genetic 
outcome at the target site and its effects may vary from individual to individual.

Second, there are potential toxicities associated with double-stranded breaks, such as activating the cell death response and/or genomic instability. In 
addition, if the double-stranded break occurs in the wrong place, the break can also lead to unwanted gene disruptions. Multiple edits using NHEJ, and thus 
multiple double-stranded breaks, can compound this issue and lead to large-scale genomic translocations and rearrangements, potentially limiting the 
applicability of nuclease-based approaches in multiplex editing.

Third, while gene disruption with nucleases is efficient, making specific sequence changes to correct or modify genes remains largely inefficient. To change 
a gene sequence, gene editing using nucleases relies on a DNA repair pathway called Homology Directed Repair, or HDR. HDR is a low-efficiency DNA 
repair pathway, typically yielding single digit percentage editing. This pathway also requires the simultaneous delivery of an additional DNA template 
containing the desired, corrected gene sequence, which needs to be positioned at the precise location where the double-stranded break has occurred. The 
requirement of an additional DNA template significantly increases the complexity of delivery. More recently, approaches have been developed to insert 
sequences into certain highly expressed genes, such as the albumin locus in liver cells. These editing approaches currently can only be used to address 
diseases that are associated with circulating proteins, and the efficiency of these approaches remains low.

Finally, gene editing through HDR does not allow for the correction of genes in non-dividing cells, since this DNA repair machinery is only expressed in 
dividing cells, further limiting their applications, given that the majority of cells in the adult body are non-dividing.

Base editors: A potential differentiated class of medicines that perform precision chemistry on genes

Errors of a single base, known as point mutations, are the most common class of genetic mutations, representing approximately 58% of all the known 
genetic errors associated with disease. Other natural genetic variations of a single base among human populations, revealed by population-level genomic 
studies, are known to protect against certain diseases. Established gene editing technologies, including CRISPR, Zinc Fingers, Arcuses and TAL Nucleases, 
typically do not edit at the single base level, due to the low efficiency of HDR. Instead, these technologies operate by creating a targeted double-stranded 
break in the DNA, and then rely on cellular mechanisms to complete the editing process. Such approaches can be effective in the disruption of gene 
expression; however, they have limited control of the editing outcome and low efficiency of precise gene correction, and can result in unwanted DNA 
modifications.

Our base editing technology is a differentiated therapeutic approach, potentially capable of altering the human genome at the foundational level of genetic 
information – a single base – without making a double-stranded break in the DNA. Base editing involves the enzymatic modification of a single type of 
base, at a targeted location directly on the gene, specifically C-to-T or A-to-G. The elegance and simplicity of this approach can be thought of as a “pencil,” 
where the error is erased and the correct letter is written. This approach is designed to create precise, predictable and efficient genetic outcomes at a 
targeted sequence, which can be used in a variety of editing strategies, including the correction of single mutations or the engineering of advanced cell 
therapies, aimed at providing a compelling therapeutic benefit. We believe, therefore, that base editors may have broad therapeutic applicability and 
transformational potential for the field of precision genetic medicines.

Advantages of base editing

We believe our base editing platform offers meaningful advantages over established approaches in gene editing, including:

•

•

•

•

Highly precise and predictable gene editing, designed to make only one type of base edit at the desired target location;

Highly efficient and therapeutically relevant levels of gene correction, which are generally unachievable by nuclease-based editing methods;

Broad applicability in a wide range of cell types, including both dividing and non-dividing cells;

Direct chemical modification of DNA with no requirement for delivery of the corrected DNA sequence;

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•

•

•

•

Avoidance of unwanted DNA modifications associated with double-stranded breaks, including gene disruptions and chromosomal 
rearrangements, such as translocations or deletions;

The potential for permanent editing of genes, creating the opportunity for a life-long therapeutic outcome, including the ability to treat infants 
or young children since the edit will be passed on by dividing cells as the child grows;

Preservation of natural regulation and a normal number of copies of the gene in the cell by modification of genes in their native genomic 
setting; and

A versatile and modular product engine that can target a different gene sequence with the same base editor and a different guide RNA.

Our base editing platform

Our proprietary DNA base editors have two principal components that may be fused together or incorporated into one another to form a single protein: (i) a 
CRISPR protein, bound to a guide RNA, that leverages the established DNA-targeting ability of CRISPR, but modified to not cause a double-stranded 
break, and (ii) a base editing enzyme, such as a deaminase, which carries out the desired chemical modification of the target DNA base. This proprietary 
combination enables the precise and targeted editing of a single base pair of DNA, which has not been previously possible with established gene editing 
technologies.

CRISPR proteins enable precise targeting of genomic DNA sequences. These proteins have been adapted and engineered over the years to target specific 
genomic locations with high specificity in human cells. CRISPR proteins incorporate a programmable component called a guide RNA. The guide RNA 
includes a region of approximately 20 bases, which allows the CRISPR protein to recognize any DNA sequence that is complementary to the guide RNA. 
This complementary sequence on DNA, also approximately 20 bases, is known as a protospacer. The short sequence of about three bases immediately 
following the protospacer on the genomic DNA is referred to as the protospacer adjacent motif, or PAM. The presence of the PAM is necessary for RNA-
DNA pairing to occur when a matching protospacer sequence is present.

In our base editors, the first component is the CRISPR protein. We currently use a CRISPR associated protein 9, or Cas9, protein for our DNA base editors. 
We also have ongoing efforts to create base editors with other CRISPR associated, or Cas, proteins, including Cas protein 12b, or Cas12b, a nuclease that is 
proprietary to Beam. The targeting ability of the CRISPR protein has been preserved, but the cutting ability has been modified such that the CRISPR 
protein does not make a double-stranded break in the DNA. Our base editors benefit from an additional feature of the CRISPR protein, which, upon 
binding to its double-stranded DNA target, opens a four to five base single-stranded segment, known as the editing window. 

The second component of our base editors is a deaminase, a class of naturally occurring enzymes. For our Cytosine Base Editors, or CBEs, we use a 
deaminase that is designed to act only on single-stranded DNA. This helps to minimize edits in other parts of the genome, where DNA is predominantly 
double-stranded. Similarly, for our Adenine Base Editors, or ABEs, we use a different, engineered deaminase that is also designed to act only on single-
stranded DNA.

The deaminase makes a predictable chemical modification, called deamination, of the amine group on either adenine or cytosine. The deaminase in a CBE 
will convert an amine group of C, resulting in the formation of uracil, which is read by the DNA polymerase as a T. Once this strand has been edited, the 
intermediate DNA consists of an edited strand, containing a U at the target locus, and an unedited strand with a G. The U:G is a mismatch, which the cell 
will normally attempt to repair in a process that can potentially lose the edit. In order to preserve the editing, we modify the CRISPR in our base editors to 
cleave the unedited single strand of the DNA, referred to as nicking, rather than creating double-stranded breaks. Nicking is intended to increase the 
efficiency of editing by inducing the cell to use the newly edited strand, and not the unedited strand, as the template for repair, resulting in a U:A pair with 
minimal translocations. Upon DNA repair or replication, the U is read as a T, resulting in a T:A pair, thereby completing the permanent conversion of a 
C:G base pair to a T:A base pair.

Analogously, when an ABE is used instead of a CBE, the conversion of an amine group of A results in the formation of inosine, which is read by the DNA 
polymerase as a G, which subsequently leads to an A-to-G change. As a result, an A:T pair is converted to a G:C pair. Because the DNA is double-
stranded, by targeting the non-coding strand, we can also convert a T:A pair to a C:G and a G:C pair to a A:T pair in the coding strand. For example, using 
ABE to install an A-to-G edit on the non-coding strand of the DNA will cause a T-to-C change in the coding sequence of the gene once the base pair has 
been fully modified. We have also developed base editors capable of dual editing, installing both a C-to-T edit as well as an A-to-G edit with a single base 
editor capable of both cytosine and adenine deamination.

The modular and individual components of our base editors have the potential to be rapidly customized for specific diseases, potentially allowing us to 
create new programs with significant efficiencies in development. By changing the guide RNA portions of the CRISPR protein, we believe we can quickly 
and precisely retarget base editors to different genomic locations based on their gene sequences. By changing the deaminase, for example, we can quickly 
and precisely retarget which base is edited (e.g., C or A). As a result, we believe our base editing platform is highly versatile, efficient, and scalable for the 
discovery of drug candidates.

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Diverse therapeutic applications of base editing

We believe the unique advantages of our base editing platform – single base editing precision, predictable editing outcome, high editing efficiency, and the 
avoidance of double-stranded breaks – make base editing a compelling approach for a wide range of therapeutic applications. This includes gene 
correction, gene modification, gene silencing and gene activation, as well as multiplex editing of several genes simultaneously.

•

•

•

•

Gene Correction - Errors of a single base, known as point mutations, are the most common form of genetic mutations, representing 
approximately 58% of all the known genetic errors associated with disease. For example, sickle cell disease is caused by a single point 
mutation at position 6 in the adult hemoglobin gene, while alpha-1 antitrypsin deficiency is caused by a single point mutation at position 342 
in the SERPINA1 gene. We believe base editors may be an ideal tool for repairing point mutations. 

Gene Modification - In addition to repairing point mutations, base editors are also capable of making other kinds of precise modifications to 
genes that could be used to treat disease. Natural genetic variations of a single base among human populations, revealed by population-level 
genomic studies, are now known to protect against or modify risk for many diseases, including Alzheimer’s disease, cardiovascular disease 
and liver disease. We believe base editors could potentially prevent or modify risk of disease by making these kinds of precise single-base 
modifications to genes, informed by human clinical genetics.

Gene Silencing or Activation - Upregulation or downregulation, including silencing and activation, of gene expression is a desirable 
therapeutic approach to cure many diseases. The high level of precision of base editors is ideally suited to alter regulatory regions of genes, 
ensuring that only a few bases at precise locations are altered to achieve the desired effect without causing broader disruptions to adjacent 
regions that may still have important regulatory functions. For example, we have demonstrated in preclinical studies re-activation of 
expression of fetal hemoglobin by precisely changing the regulatory region of the relevant genes, thus preventing one or more repressor 
proteins, including B-cell lymphoma/leukemia 11A, from binding. Both our CBEs and ABEs can also be used to silence the expression of 
genes, with editing rates that are highly comparable to those achieved with nuclease-based editors but without requiring a double-stranded 
break. Gene silencing, such as targeting surface proteins in a CAR-T cell, can be achieved either by the conversion of certain short gene 
sequences, called codons, into STOP codons or by the disruption of splice donor-acceptor sites, in each case with a single base conversion.

Multiplex base editing - By avoiding the creation of double-stranded breaks, base editors are particularly advantageous in situations where 
multiple sequences in the genome must be simultaneously edited. This could include targeting duplicated or repetitive sequences in the 
genome, as is the case with the identical regulatory regions of the two neighboring genes for fetal hemoglobin, or targeting several genes at 
once, such as in the creation of advanced cell therapies like CAR-T cells with a combination of features that could dramatically enhance their 
therapeutic potential. Base editors are designed to not create double-stranded breaks, and we have demonstrated in preclinical cell line studies 
that they can edit multiple locations simultaneously without causing any detectable chromosomal rearrangements. Additionally, there are 
manufacturing benefits as cells that have three or more nuclease edits appear to have a significant growth deficit compared to cells that have 
been edited the same number of times with a base editor. We believe that our base editors can provide a significant and meaningful 
advancement in therapies where more complex gene editing is required, such as targeting multiple sequences across the genome or creating 
highly engineered cellular therapies.

Delivery of genetic medicines

To complement our next-generation gene editing technologies, we are also making significant investments in a broad suite of delivery technologies 
designed to deliver gene editing or other nucleic acid payloads to the right cells and enable potentially curative therapy. These delivery technologies include 
ex vivo modalities, such as electroporation, as well as in vivo modalities such as LNPs and viral vectors. In our pipeline, we have initially focused on 
applications of these technologies where their delivery capabilities have already been clinically-validated by third parties, such as ex vivo editing of blood 
stem cells and LNP delivery to the liver. Longer term, we are also investing in more innovative delivery options, such as LNPs that could target other 
organs beyond the liver, or novel viral vectors. We have also developed critical enabling capabilities such as mRNA manufacturing and cell processing for 
autologous and allogeneic cell therapy.

Consistent with this approach, our acquisition of Guide Therapeutics, Inc., or Guide, provided us with a broad library of lipids and lipid formulations, as 
well as proprietary DNA barcode screening to enable high throughput in vivo LNP screening. We have also expanded on the platform with RNA barcode 
screening. Using these technologies, we have generated additional novel LNPs that we believe can accelerate novel nonviral delivery of gene editing or 
other nucleic acid payloads to tissues beyond the liver. We also recently entered into a license and collaboration agreement with Orbital Therapeutics, Inc., 
or Orbital, that provides us with access to Orbital’s non-viral delivery technology. Orbital’s non-viral delivery platform is designed extend the durability 
and half-life of RNA therapeutics, while also expanding their delivery to a larger number of cell types and tissues.

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Manufacturing of genetic medicines

To realize the full potential of base editors as a differentiated class of medicines and to enable our parallel investment strategy in multiple delivery 
modalities, we are building customized and integrated capabilities across discovery, manufacturing, and preclinical and clinical development. Due to the 
critical importance of high-quality manufacturing and control of production timing and know-how, we are establishing our own manufacturing facility, 
which will provide us the flexibility to manufacture a variety of different product modalities. We believe this investment will maximize the value of our 
portfolio and capabilities, the probability of technical success of our programs, and the speed at which we can provide potentially life-long cures to patients.

We have a 100,000 square foot manufacturing facility in Research Triangle Park, North Carolina intended to support a broad range of clinical programs. 
The facility became operational in the first quarter of 2023, and we expect it to initiate cGMP operations in late 2023. The facility is designed to support 
manufacturing for our ex vivo cell therapy programs in hematology and oncology and in vivo non-viral delivery programs for liver diseases, with the 
capability to scale-up to support potential commercial supply. For our initial waves of clinical trials, we expect to use CMOs with relevant manufacturing 
experience in genetic medicines alongside our internal manufacturing capabilities.

Our platform

In summary, we believe that building an integrated platform combining our gene editing capabilities with advanced delivery and manufacturing capabilities 
will give us the flexibility to develop a sustainable portfolio, featuring rapid development of new programs and lifecycle improvements in our core 
programs. For example, for the treatment of sickle cell disease, we are pursuing an ex vivo, autologous transplant-based approach with BEAM-101, and 
also are investing in a potential in vivo, LNP-based treatment to reach even more patients – all because we have consolidated both cell-based and novel 
HSC-targeting LNP technologies internally.

In addition to our internal pipeline, the breadth and depth of our integrated technology platform gives us the opportunity to create a hub for partnering with 
other companies, which is an important part of our business model. We believe this model will help us to unlock the full potential of precision genetic 
medicine across a wider array of possible applications.

In some cases, we have established collaborations that advance new programs in “whitespace” areas by giving a collaborator broad access to our various 
editing and delivery technologies, such as in our Verve collaboration in cardiovascular disease, our Apellis collaboration in complement-mediated 
disorders, and our Pfizer collaboration in rare diseases of the liver, muscle and central nervous system. In other cases, we have leveraged our team, 
capabilities and technologies to access other emerging technologies or capabilities, such as in our relationship with Prime Medicine and Orbital. Our 
overall goal with these platform activities is to continue expanding our access to the technologies and teams in genetic medicine that will maximize our 
long-term value creation and impact on patients. 

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Our base editing portfolio

We believe building a diversified portfolio leveraging the full breadth of our editing and delivery technologies in parallel will maximize our ability to 
provide life-long curative therapies to patients over the broadest possible range of diseases. We plan to advance multiple programs through clinical 
development in parallel, with each one potentially capable of delivering proof-of-concept in Phase 1 clinical trials in genetically defined patient populations 
and potentially reaching approval on an accelerated pathway. Our portfolio is purposefully built around a mix of strategic and technical profiles, creating 
significant optionality and risk diversification. We prioritize and advance programs based on a number of criteria, including significant unmet medical 
need, editing feasibility, clinically validated delivery modalities, favorable clinical and regulatory development pathways, and evidence that base editing 
offers potentially compelling advantages for patients over available standards-of-care and novel therapeutic modalities in development.

Our programs are organized by disease focus: hematology programs delivered by ex vivo HSCs, immunology/oncology programs delivered by ex vivo T 
cells and genetic disease programs, delivered in vivo using both LNP and novel viral technologies. The following table summarizes the status of certain of 
our programs:

Hematology: Ex Vivo HSCs 

We are advancing hematology base editing programs in which HSCs are collected from a patient, edited using electroporation, a clinically validated 
technology for the delivery of therapeutic constructs into harvested cells, and then infused back into the patient following a myeloablative conditioning 
regimen, such as treatment with busulfan, the standard of care in HSC transplantation today. Once reinfused, the HSCs begin repopulating a portion of the 
bone marrow in a process known as engraftment. The engrafted, edited HSCs give rise to progenitor cell types with the corrected gene sequences. We plan 
to deploy this ex vivo approach in our BEAM-101 (sickle cell disease and beta thalassemia) and ESCAPE (improved conditioning) base editing programs.

Sickle cell disease, a severe inherited blood disease, is caused by a single point mutation, E6V, in the beta globin gene. This mutation causes the mutated 
form of HbS to aggregate into long, rigid molecules that bend red blood cells into a sickle shape under conditions of low oxygen. Sickled cells obstruct 
blood vessels and die prematurely, ultimately resulting in anemia, severe pain (crises), infections, stroke, organ failure, and early death. Sickle cell disease 
is the most common inherited blood disorder in the United States, affecting an estimated 100,000 individuals, of which a significant proportion are of 
African-American descent (1:365 births). Beta-thalassemia is another inherited blood disorder characterized by severe anemia caused by reduced 
production of functional hemoglobin due to insufficient expression of the beta globin protein. Transfusion-dependent beta-thalassemia, or TDBT, is the 
most severe form of this disease, often requiring multiple transfusions per year. Patients with TDBT suffer from failure to thrive, persistent infections, and 
life-threatening anemia. The incidence of symptomatic beta-thalassemia is estimated to be 1:100,000 worldwide, including 1:10,000 in Europe. In the 
United States, based on affected birth incidence of 0.7 in 100,000 births, and increasing survival rates, we expect the population of individuals affected by 
this disease to be more than 1,400 and rising. The only potentially curative therapy currently available for patients with sickle cell disease or beta-
thalassemia is allogeneic HSCT; however, this procedure holds a high level of risk, particularly Graft-versus-Host Disease resulting in a low number of 
patients opting for this treatment.

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We are pursuing a long-term, staged development strategy for our base editing approach to treat hematological diseases that consists of advancing our ex 
vivo program, BEAM-101, in Wave 1, improving patient conditioning regimens in Wave 2, and enabling in vivo base editing with delivery directly into 
HSCs of patients via LNPs in Wave 3. We believe this suite of technologies – base editing, improved conditioning and in vivo delivery for editing HSCs – 
can maximize the potential applicability of our sickle cell disease programs to patients as well as create a platform for the treatment of many other severe 
genetic blood disorders.

Wave 1: Ex Vivo Base Editing via Autologous Transplant with BEAM-101

We are using base editing to pursue the development of BEAM-101 for the treatment of sickle cell disease and beta-thalassemia.

BEAM-101: Recreating naturally-occurring protective mutations to activate fetal hemoglobin 

BEAM-101 is a patient-specific, autologous HSC investigational therapy designed to offer a potentially best-in-class profile, incorporating base edits that 
are intended to mimic single nucleotide polymorphisms seen in individuals with HPFH. BEAM-101 aims to alleviate the effects of sickle cell disease or 
beta-thalassemia by increasing fetal hemoglobin, which is expected to increase functional hemoglobin production and, in the case of sickle cell disease, 
inhibit hemoglobin S polymerization. In November 2022, we announced that we enrolled the first patient in our Phase 1/2 clinical trial designed to assess 
the safety and efficacy of BEAM-101 for the treatment of sickle cell disease, which we refer to as our BEACON trial. The BEACON trial is expected to 
include an initial “sentinel” cohort of three patients, treated one at a time to confirm successful engraftment, followed by dosing in up to a total of 45 
patients. The clinical trial is designed to initially include patients ages 18 to 35 with severe sickle cell disease who have received prior treatment with at 
least one disease-modifying agent with inadequate response or intolerance. Following mobilization, conditioning and treatment with BEAM-101, patients 
will be assessed for safety and tolerability, with safety endpoints including neutrophil and platelet engraftment. Patients will also be assessed for efficacy, 
with efficacy endpoints including the change from baseline in severe vaso-occlusive events, transfusion requirements, hemoglobin F levels, and quality of 
life assessments. We expect to complete enrollment in the sentinel cohort and initiate enrollment in the expansion cohort of the BEACON trial in 2023, and 
plan to report data from multiple patients from one or both cohorts in 2024. 

The beneficial effects of the fetal form of hemoglobin, or HbF, to compensate for mutations in adult hemoglobin were first identified in individuals with 
HPFH. Individuals who carry mutations that would have typically caused them to be beta-thalassemia or sickle cell disease patients, but who also have 
HPFH, are asymptomatic or experience a much milder form of their disease. HPFH is caused by single base changes in the regulatory region of the genes, 
HBG1 and HBG2, which prevents binding of one or more repressor proteins and increases the expression of gamma globin, which forms part of the HbF 
tetramer. 

Using base editing, we are attempting to reproduce these specific, naturally occurring base changes in the regulatory elements of the gamma globin genes, 
preventing binding of repressor proteins and leading to re-activation of gamma globin expression, and thus the increase in gamma globin levels. Our 
preclinical in vitro and in vivo characterization of BEAM-101 using ex vivo delivery achieved precise and efficient editing of human CD34+ HSPCs, 
resulting in long-term engraftment and therapeutically-relevant increases in target gene expression in mice. Additionally, there have been no observed 
guide-dependent or guide-independent off-target events for this program.

Preclinical in vitro characterization of BEAM-101:

•

•

•

We demonstrated greater than 90% editing in healthy donor CD34 cells in vitro.

We demonstrated gamma globin upregulation following erythroid differentiation is highly correlated (R2=0.993) with editing rates, where, at 
greater than 90% editing, we achieved a greater than 60% increase in gamma globin in healthy donor CD34+ cells. 

We observed successful editing of CD34+ cells from a homozygous sickle cell disease patient, demonstrating a greater than 60% increase in 
gamma globin levels with a concomitant decrease to less than 40% sickle beta globin levels in vitro after in vitro differentiation.

Preclinical in vivo performance of BEAM-101:

•

•

•

We demonstrated that edited CD34+ cells from a healthy human donor engraft with high chimerism and maintain greater than 90% editing 
after 16 weeks in immunocompromised mice.

We demonstrated after 16-week engraftment that base edited cells lead to successful multilineage reconstitution with greater than 90% base 
editing achieved in sorted human HSPCs, myeloid, lymphoid and erythroid cells.

We replicated these findings with cells from a second donor at 18 weeks post-engraftment.

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BEAM-102: Direct correction of the sickle cell mutation 

A second base editing approach for sickle cell disease, BEAM-102, is designed to directly correct the causative sickle mutation at position 6 of the beta 
globin gene. By making a single A-to-G edit, we have demonstrated in primary human CD34+ cells isolated from sickle cell disease patients the ability to 
create the naturally occurring HbG or “Makassar” variant of hemoglobin. This variant, which was identified in humans and first published in 1970, has the 
same function as the wild-type variant and does not cause sickle cell disease. Distinct from other approaches, cells that are successfully edited in this way 
are fully corrected, no longer containing the sickle protein. 

In 2020, we published preclinical data on BEAM-102 demonstrating that our ABEs can efficiently convert the causative Hemoglobin S, or HbS, point 
mutation, to HbG-Makassar, with high efficiency (more than 80%). In this preclinical study, the Makassar variant did not cause hemoglobin to polymerize 
and red blood cells to sickle and, therefore, edited cells were cured through elimination of the disease-causing protein. In December 2021, we presented 
data from preclinical studies further characterizing the Makassar hemoglobin created by BEAM-102 and demonstrating biophysical and biochemical 
properties consistent with normal hemoglobin. 

In November 2022, we announced that we have decided to optimize our direct correction, “Makassar” approach, alongside our HPFH approach, for Wave 2 
and Wave 3 of our sickle cell disease programs.

Wave 2: Improved Conditioning

In parallel with Wave 1 development, we also aim to improve the transplant conditioning regimen for sickle cell disease patients undergoing HSCT, 
reducing toxicity challenges associated with HSCT standard of care. Conditioning is a critical component necessary to prepare a patient’s body to receive 
the ex vivo edited cells that must engraft in the patient’s bone marrow in order to be effective. However, today’s conditioning regimens rely on nonspecific 
chemotherapy or radiation, which are associated with significant toxicities. As a potential alternative to genotoxic conditioning regimens in HSCT, we are 
advancing our ESCAPE program. ESCAPE conditioning regimens could potentially be paired with BEAM-101 and BEAM-102, as well as other base 
editing programs in hematology.

ESCAPE: Improved Conditioning for HSCT in sickle cell disease

ESCAPE aims to avoid toxicity challenges associated with currently available conditioning regimens for patients with sickle cell disease and beta-
thalassemia ahead of autologous HSCT. ESCAPE may also have applications in other diseases of the blood and immune system where HSCT could deliver 
potential benefits but has been limited by toxicities associated with current standard of care conditioning regimens. In December 2022, we presented 
preclinical data at the 2022 American Society of Hematology Annual Meeting and Exposition, or ASH, on our ESCAPE-1 and ESCAPE-2 programs. 
ESCAPE-1 consists of multiplex base edited HSCs that include a therapeutic edit for sickle cell disease at the HGB1/2 gene and an additional edit at 
CD117. Findings presented at ASH included the first in vivo data for the ESCAPE-1 program, which build upon data shared earlier in 2022 demonstrating 
that ESCAPE-1 antibodies bound to wild-type CD117 and blocked binding of its ligand in mice. In addition, we observed depletion of unedited cells and 
enrichment of edited cells in mice dosed with ESCAPE-1 antibodies.

 ESCAPE-2 consists of multiplex base-edited HSCs that include a therapeutic HbG-Makassar edit and an edit in CD117, which is compatible with the 
conditioning mAb used in ESCAPE-1. In preclinical studies, our ESCAPE-2 strategy demonstrated highly efficient base editing of CD117 of HSCs and 
favorable mAb properties in vitro. Further, preclinical findings showed that primary human HSCs harboring the engineered epitope could effectively evade 
depletion by blocking of the CD117 ligand binding by a highly specific and potent mAb in vitro. Early in vitro biological assessment of receptor function 
suggested that the engineered CD117 epitope is compatible with normal function.

We have made significant investments in our ESCAPE platform and we plan to continue its advancement in 2023.

Wave 3: In Vivo Base Editing via HSC-targeted LNPs

We are also exploring the potential for in vivo base editing programs for sickle cell disease, in which base editors would be delivered to the patient through 
an infusion of LNPs targeted to HSCs, eliminating the need for transplantation altogether. This approach could provide a more accessible option for 
patients, particularly in regions where ex vivo treatment is challenging. Building on our acquisition of Guide, we are using our proprietary DNA- and RNA-
barcoded LNP screening technology to enable high-throughput in vivo identification of LNPs with novel biodistribution and selectivity for target organs 
beyond the liver. In December 2021, we announced we had screened more than 1,000 LNPs using this technology for potential to deliver to HSCs and had 
identified LNP-HSC1 as the most potent, with efficient transfection in both mice and NHPs. In preclinical studies, we demonstrated that:

•

•

•

LNP-HSC1 was validated in vivo, leading to durable, dose-dependent mRNA transfection in HSCs and resulting in fluorescent reporter 
expression in more than 40% of cells, maintained out to 16 weeks post-delivery;

LNP-HSC1 efficiently transfected human CD34+ cells in vitro; and

LNP-HSC1 efficiently transfected nearly 20% of CD34+ HSCs in humanized mice and NHPs at a dose of 1.0 mg/kg.

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Achieving Understanding of the Natural History of Sickle Trait (AUNT) Study

In May 2022, we announced the initiation of a sickle cell trait, or SCT, focused natural history study. Carriers of sickle cell disease, or those with SCT, have 
only one copy of the hemoglobin gene, have HbS levels between 25-45%, and are thought to have a benign condition. However, despite SCT impacting 
approximately 300 million people around the world, the key hematologic and clinical phenotypic characteristics and functional impacts from having SCT 
have been understudied in a prospective manner. As part of a long-term lifecycle strategy for our sickle cell disease programs, we, in collaboration with the 
National Alliance of Sickle Cell Centers, the University of Alabama, and Johns Hopkins Medical Center, have initiated the AUNT (Achieving 
Understanding of the Natural History of Sickle Trait) Study.

The AUNT Study is designed to establish an understanding of the hematologic and clinical phenotype of people with SCT, including blood rheology, 
potential complications and genetic modifiers, in an effort to better understand the hematologic phenotype that is associated with good health and lack of 
organ dysfunction. The study is designed to enroll approximately 1,000 participants with SCT in the United States who have been identified as family 
members of participants in the Global Research Network for Data and Discovery, a multi-institutional prospective registry comprising clinical and 
background data from more than 1,200 adult and pediatric individuals with sickle cell disease from 1999-2021.

Immunology/Oncology: Ex vivo T cell therapies

The starting material for our multiplex-edited allogeneic CAR-T cell products is white blood cells from a healthy donor, which are collected using a 
standard blood bank procedure known as leukapheresis. Using a single electroporation, we introduce the base editor as mRNA, and the guides encoding the 
target sequences. The edited cells are subsequently transduced with a lentivirus expressing the CAR. Once the T cells have been engineered, they are 
expanded and frozen. After the patient is lymphodepleted, the multiplex-edited, allogeneic cell product is infused.

We believe base editing is a powerful tool to simultaneously multiplex edit many genes without the unintended on-target effects that can result from 
simultaneous editing with nucleases through the creation of double-stranded breaks. The ability to create a large number of multiplex edits in T cells could 
endow CAR-T cells and other cell therapies with combinations of features that have the potential to dramatically enhance their therapeutic potential in 
treating hematological or solid tumors. 

The initial indications that we plan to target with these product candidates are relapsed, refractory T-ALL/T-LL, and Acute Myeloid Leukemia, or AML. 
We believe that our approach has the potential to produce higher response rates and deeper remissions than existing approaches. Our proof-of-concept 
preclinical studies have demonstrated the ability of base editors to efficiently modify up to eight genomic loci simultaneously in primary human T cells 
with efficiencies ranging from 85-95% as measured by flow cytometry of target protein knockdown. Importantly, these results were achieved without the 
generation of observed chromosomal rearrangements, as evaluated by sensitive methods such as UDiTaSTM or G-banded Karyotyping and with no observed 
loss of cell viability from editing. The proof-of-concept preclinical studies have also demonstrated robust T cell killing of target tumor cells both in vitro 
and in vivo. 

BEAM-201: Universal CD7-targeting CAR-T cells

BEAM-201 is a development candidate comprised of T cells derived from healthy donors that are simultaneously edited at TRAC, CD7, CD52 and PDCD1 
and then transduced with a lentivirus encoding for an anti-CD7 CAR that is designed to create allogeneic CD7 targeting CAR-T cells, resistant to both 
fratricide and immunosuppression. At the end of June 2022, we submitted an IND to the FDA for BEAM-201 for the treatment of relapsed, refractory T-
ALL/T-LL, a severe disease affecting children and adults, and potentially other CD7+ malignancies. In December 2022, we received clearance from the 
FDA for our IND for BEAM-201. We have initiated a first-in-human Phase 1/2 clinical trial designed to evaluate the safety and efficacy of BEAM-201 in 
patients with relapsed/refractory T-ALL/T-LL and we expect to dose the first patient in the trial by mid-2023. The Phase 1 portion of the trial is expected to 
include up to 48 patients between the ages of 18 and 50, followed by a Phase 2 portion with approximately 48 patients. Key safety endpoints for the trial 
include treatment-emergent and treatment-related adverse events, and key efficacy endpoints include proportion of patients with complete or partial 
responses, proportion eligible for HSC transplant and proportion achieving minimal residual disease negative status. We believe that BEAM-201 is the first 
quadruple-edited, allogeneic CAR-T cell investigational therapy in clinical-stage development.

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In our BEAM-201 program, we edit cells using our CBEs with the aim of conferring the following benefits:

•

•

•

•

TRAC: Prevent graft-vs-host disease via the elimination of the existing TCR to ensure that the CAR-T cell only attacks the CAR antigen on 
the tumor and not the patient’s healthy cells. 

CD52: Enable an allogeneic cell source by masking BEAM-201 cells to anti-CD52 lymphodepleting agents to reduce host rejection of 
BEAM-201 cells. 

PDCD1: Minimize immunosuppression of BEAM-201 cells by the tumor microenvironment and prolong efficacy for attacking the tumor.

CD7: Prevent fratricide by eliminating antigens that are shared between malignant cells and CAR-T cells.

Preclinical in vitro characterization of BEAM-201 and comparison to nuclease editing:

•

•

•

•

Simultaneous base editing at four target loci in primary human T cells using a clinical-scale process demonstrated 96-99% on-target editing 
of each of the four genes as measured by next-generation sequencing.

Simultaneous quad base editing of T cells resulted in no detected genomic rearrangements; Cas9 nuclease editing with the same four guide 
RNAs produced chromosomal aberrations in 22 of 100 cells evaluated in G-banded karyotyping.

Multiplex base editing did not demonstrate negative effects on cell expansion during manufacturing, while nuclease editing was observed to 
induce significant loss of cell expansion.

CBE-edited cells demonstrated decreased expression of the four target genes with minimal effect on other genes, including key members of 
the p53 pathway that are upregulated in response to DNA double-stranded breaks produced by multiplex editing with nucleases.

Further preclinical characterization of BEAM-201 in vitro and in a tumor mouse model:

•

•

•

The GMP-compliant, clinical-scale process resulted in final BEAM-201 CAR-T cell populations with on-target editing efficiencies between 
96-99.9% at each of the four target loci, and 85% CAR-expressing cells. As a result, we estimate that 91% of cells are bi-allelically quad base 
edited and 77% of cells have all five genetic modifications. We believe this is the highest level and uniformity of CAR expression and 
simultaneous editing across four target sites reported at clinical scale to date.

BEAM-201 cells demonstrated robust in vitro CD7-dependent cytokine production, and rapid in vitro cytotoxicity.

BEAM-201 cells also demonstrated dose-dependent clearance or control, across a 25-fold dose range, of an aggressive disseminated CCRF-
CEM T-ALL tumor mouse model.

Genetic Diseases: In vivo LNPs and novel viral delivery

LNPs are a clinically validated technology for delivery of nucleic acid payloads to the liver. LNPs are multi-component particles that encapsulate the base 
editor mRNA and one or more guides and protect them from degradation while in an external environment, enabling the transient delivery of the base 
editor in vivo. Multiple third-party clinical trials have demonstrated the effective delivery of silencing RNA to the liver using LNPs. Because only one dose 
of a base editing therapy may be needed in a course of treatment, LNPs are a suitable delivery modality that we believe is unlikely to face the complications 
seen with chronic use of LNPs, such as those observed when delivering oligonucleotides or mRNA for gene therapy. All of the components of the LNP, as 
well as the mRNA encoding the base editor, are well-defined and can be manufactured synthetically, providing the opportunity for scalable manufacturing.

Using both wholly-owned and in-licensed lipids, we have developed several proprietary LNP formulations. In May 2021, we announced initial data from 
our evaluation of various LNP formulations and mRNA production processes using an mRNA-encoding ABE and guide RNA to target the ALAS1 gene, a 
surrogate payload for genetic liver diseases. These data showed improved in vivo editing in the livers of NHPs from less than 10% initially to 52% at a total 
RNA dose of 1.5 mg/kg. Continued optimization of our LNP formulations has demonstrated further increases in liver editing potency in NHPs. In 
September 2021, we presented data demonstrating up to 60% editing in NHPs at a total RNA dose of 1.0 mg/kg. Data from our preclinical studies 
demonstrated that these formulations were well tolerated by NHPs treated with doses up to 1.5 mg/kg. Minimal to mild and transient liver enzyme 
elevations were observed and resolved by day 15 post-treatment. Additionally, the formulations showed promising interim stability, maintaining potency 
after three months at -20⁰C and -80⁰C. 

We are currently planning to use LNPs to advance our programs for genetic liver diseases, including GSDIa, AATD and HBV infection. We are also 
planning to advance multiple additional in vivo liver editing programs through lead optimization in 2023.

Viral delivery systems, such as AAV viral vectors, use a non-pathogenic virus that is repurposed to carry a therapeutic payload. Several clinical trials have 
been conducted or are in progress with different AAV variants for multiple diseases, including diseases of 

15

 
the eye, liver, muscle, lung and central nervous system, however, our DNA base editors are larger than packaging limit of AAV vectors, requiring dual 
infection where each virus contains approximately one half of the editor. To address these and other limitations of AAV technology, we are advancing other 
novel viral delivery technologies that we believe will be better suited to delivery of gene editing therapies. 

BEAM-301: In Vivo LNP liver-targeting for GSDIa

BEAM-301 is a liver-targeting LNP formulation of base editing reagents designed to correct the R83C mutation, the most prevalent disease-causing 
mutation for, and the mutation which results in the most severe form of, GSDIa. GSDIa is an autosomal recessive disorder caused by mutations in the 
G6PC gene that disrupt a key enzyme, G6Pase, critical for maintaining glucose homeostasis. Inhibition of G6Pase activity results in low fasting blood 
glucose levels that can result in seizures and be fatal. Patients with this mutation typically require ongoing corn starch administration, without which they 
may enter into hypoglycemic shock within one to three hours. 

Our approach to treating patients with GSDIa is to apply base editing via LNP delivery to repair the two most prevalent mutations that cause the disease, 
R83C and Q347X. It is estimated that these two point mutations account for 900 and 500 patients, respectively, in the United States, representing 
approximately 59% of all GSDIa patients in the United States. Third party animal studies have shown that as little as 11% of normal G6Pase activity in 
liver cells is sufficient to restore fasting glucose; however, this level must be maintained in order to preserve glucose control and alleviate other serious, and 
potentially fatal, GSDIa sequelae.

In October 2021, we reported data from preclinical studies that support the potential of base editing to durably correct disease-causing mutations of GSDIa. 
We created a novel, humanized R83C knockout mouse model (huR83C), mimicking the abnormal metabolic phenotype of human GSDIa, and collaborated 
with the National Institutes of Health, or NIH, to characterize the phenotype of these animals. The results demonstrated that newborn huR83C mice treated 
with our LNP-delivered ABE exhibited normal growth to the end of the study at three weeks of age without any hypoglycemia-induced seizures. In 
contrast, homozygous animals were unable to survive soon after birth in the absence of glucose supplementation. In addition, we observed editing 
efficiencies up to approximately 60% by next-generation sequencing of DNA isolated from the whole liver. Of note, we believe even narrow gains in base 
editing efficiency have the potential to provide significant restoration of G6Pase activity and normal metabolic function.

In May 2022, an abstract announcing new preclinical data presented at the American Society of Gene and Cell Therapy (ASGCT) Annual Meeting was 
published. The data, which build on previously released preclinical results, demonstrated that in a GSDIa mouse model, treated mice, which otherwise have 
poor survival outcomes if left untreated, grew normally to at least 35 weeks following administration of BEAM-301, with survival ongoing in the study. 
Notably, as low as single digit percentage base-editing rates were sufficient to restore physiologically relevant levels of hepatic G6Pase activity, normalize 
serum metabolites, and most importantly, prevent hypoglycemia during a 24-hour fast in treated mice. In addition, preliminary assessments of observed off-
target editing in the study suggested a favorable profile of BEAM-301.

In November 2022, we announced that we had initiated IND-enabling studies for BEAM-301. By late 2023 or in early 2024, we plan to submit a regulatory 
application for BEAM-301 for authorization to initiate clinical trials for the program.

BEAM-302: In Vivo LNP liver-targeting for AATD 

BEAM-302 is a liver-targeting LNP formulation of base editing reagents designed to offer a one-time treatment to genetically correct the E342K point 
mutation (PiZZ genotype) responsible for a severe form of AATD. AATD is an inherited genetic disorder that can cause early onset emphysema and liver 
disease. The most severe form of AATD arises when a patient has a point mutation in both copies of the SERPINA1 gene at amino acid 342 position 
(E342K, also known as the PiZ mutation or the “Z” allele). This point mutation causes Alpha-1 antitrypsin, or AAT, to misfold, accumulating inside liver 
cells rather than being secreted, resulting in very low levels (10%-15%) of circulating AAT. As a consequence, the lung is left unprotected from neutrophil 
elastase, resulting in progressive, destructive changes in the lung, such as emphysema, which can result in the need for lung transplants. The mutant AAT 
protein also accumulates in the liver, causing liver inflammation and cirrhosis, which can ultimately cause liver failure or cancer requiring patients to 
undergo a liver transplant. It is estimated that approximately 60,000 individuals in the United States have two copies of the Z allele. There are currently no 
curative treatments for patients with AATD. 

With the high efficiency and precision of our base editors, we aim to utilize our ABEs to enable the programmable conversion of A-to-T and G-to-C base 
pairs and precisely correct the E342K point mutation back to the wild type sequence. In 2020, we showed the ability to directly correct the mutation 
causing AATD, providing both in vitro and in vivo preclinical proof-of-concept for base editing to correct this disease.

In May 2022, we presented an abstract at ASGCT that detailed our efforts to optimize both the ABE and the guide RNA used to correct the disease-causing 
PiZ mutation, with improvements over the original reagents leading to a greater than two-fold increase in observed editing potency and potentially 
therapeutically relevant increases in circulating alpha-1 antitrypsin in mice treated at doses that are expected to be clinically relevant (<1mg/kg). Further, 
similar results were observed in adult mice dosed at greater than 37 weeks, a treatment context more similar to what might be encountered in a clinical 
setting.

16

 
In November 2022, we announced BEAM-302 as a development candidate as a treatment for AATD, and in early 2024, we plan to submit a regulatory 
application for BEAM-302 for authorization to initiate clinical trials for the program.

Hepatitis B Virus

HBV causes serious liver infection that can become chronic, increasing the risk of developing life-threatening health issues like cirrhosis, liver failure or 
liver cancer. Chronic HBV infection is characterized by the persistence of covalently closed circular DNA, or cccDNA, a unique DNA structure that forms 
in response to HBV infection in the nuclei of liver cells. Additionally, the HBV DNA can integrate into the human genome becoming a source of hepatitis 
B surface antigen, or HBsAg. While currently available treatments can manage HBV replication, they do not clear cccDNA from the infected liver cells. 
This inability to prevent HBV infection rebound from cccDNA is a key challenge to curing HBV. In September 2022, we presented preclinical data that 
demonstrated the potential of our multiplex base editors to reduce viral markers, including HBsAg expression, and prevent viral rebound of HBV in in vivo 
models. 

Stargardt disease 

We are currently evaluating base editing technology to correct one of the most prevalent mutations in the ABCA4 gene causing Stargardt disease, a 
progressive macular degeneration disease. This mutation is known as the G1961E point mutation and approximately 5,500 individuals in the United States 
are affected. Disease modeling using tiny light stimuli through holes that are equivalent in size to a single photoreceptor cell suggests that only 12%-20% 
of these cells are necessary to preserve vision. We anticipate, therefore, that editing percentages in the range of 12%-20% of these cells would be disease-
modifying, since each edited cell will be fully corrected and protected from the biochemical defect associated with Stargardt disease.

In a human retinal pigment epithelial cell line (ARPE-19 cells) in which we have knocked in the ABCA4 G1961E point mutation, we have demonstrated 
the precise correction of approximately 75% of the disease alleles at five weeks after dual infection with an AAV system.

Our portfolio of precision gene editing technologies

Building on the expertise of our academic founders and our innovative research culture, we plan to explore new and complementary technologies in base 
editing, gene editing, and genetic medicine over the long term to advance a broad portfolio across multiple delivery pipelines. As part of this strategy, we 
have licensed a portfolio of three additional complementary technologies – RNA base editing, Cas12b nuclease editing, and prime editing for certain fields. 
Combined with base editing, we have assembled a broad and versatile portfolio of next generation gene editing technologies for the potential treatment of 
many severe diseases.

Our license agreement with The Broad Institute, Inc., or Broad Institute, gives us access to RNA base editing technology, a two-part modular system using 
an RNA-directed CRISPR protein for targeting RNA strands and a deaminase for editing. This CRISPR protein, known as Cas13, is modified so that it 
cannot break the RNA strand, and is fused to a deaminase capable of making a single base edit at a specific target location within the RNA strand. This 
enables us to change protein expression, potentially correcting or altering the function of the resulting protein and correcting disease. Our RNA base editing 
technologies include the REPAIR™ system for A-to-I editing, as well as the RESCUE™ system for C-to-U editing. When delivered through a long-lasting 
viral vector, RNA base editing may provide a complementary approach to DNA base editing for permanent correction of gene expression. Additionally, 
RNA editing could potentially be beneficial in situations where a transient change is desirable, such as in regenerative medicine.

Our Broad Institute license also gives us access to the Cas12b nuclease family, which provides several potential strategic advantages for our portfolio. First, 
the distinct PAM sequence and conformation of Cas12b allows us to create DNA base editors that can bind to different target sites in the genome, further 
expanding the range of sites that we can edit. Second, having a nuclease allows us to make “cut” edits, which may be appropriate for some applications that 
require a double stranded break, or to use the general gene targeting ability of Cas12b for other gene editing applications.

We also have a license to technology referred to as “prime editing,” that is controlled by Prime Medicine, Inc. Prime editing may be able to achieve the 
“rewriting” of short sequences of DNA at a target location. Prime editing utilizes a CRISPR protein to target a mutation site in DNA and to nick a single 
strand of the target DNA. The guide RNA allows the CRISPR protein to recognize a DNA sequence that is complementary to the guide RNA and also 
carries a primer for reverse transcription and a replacement template. The reverse transcriptase copies the template sequence in the nicked site, installing 
the edit. As with base editing, prime editing does not cause double-stranded breaks in the target DNA, resulting in lower insertion and deletion rates than 
gene editing technologies that rely on double stranded breaks.

We have the exclusive right to develop prime editing technology for the creation or modification of any single base transition mutations, as well as any 
edits made for the treatment of sickle cell disease. Transition mutations (i.e., A-to-G, G-to-A, C-to-T, or T-to-C) are the largest single class of disease-
associated genetic mutations and include all of our current targets for base editing programs.

17

 
Leveraging our deep scientific expertise and significant ongoing investment in our platform, we also expect to develop insights into other innovative gene 
editing and delivery modalities. We believe that our delivery, manufacturing, and development capabilities could position us to effectively evaluate and 
rapidly develop such novel technologies and further extend our leadership in the field of genetic medicine. 

Collaborations

We believe our collection of base editing, gene editing and delivery technologies has significant potential across a broad array of genetic diseases. To fully 
realize this potential, we have established and will continue to seek out innovative collaborations, licenses, and strategic alliances with pioneering 
companies and with leading academic and research institutions. Additionally, we have and will continue to pursue relationships that potentially allow us to 
accelerate our preclinical research and development efforts. These relationships will allow us to aggressively pursue our vision of maximizing the potential 
of base editing to provide life-long cures for patients suffering from serious diseases.

Pfizer

In December 2021, we entered into a four-year research collaboration agreement with Pfizer Inc., or Pfizer, focused on in vivo base editing programs for 
three targets for rare genetic diseases of the liver, muscle and central nervous system. Under the terms of the agreement, we will conduct all research 
activities through development candidate selection for three pre-specified, undisclosed targets, which are not included in our existing programs. Pfizer may 
opt in to exclusive, worldwide licenses to each development candidate, after which it will be responsible for all development activities, as well as potential 
regulatory approvals and commercialization, for each such development candidate. We have a right to opt in, at the end of Phase 1/2 clinical trials, upon the 
payment of an option exercise fee, to a global co-development and co-commercialization agreement with respect to one program licensed under the 
collaboration pursuant to which we and Pfizer would share net profits as well as development and commercialization costs in a 35%/65% ratio 
(Beam/Pfizer).

Apellis Pharmaceuticals

In June 2021, we entered into a research collaboration agreement with Apellis Pharmaceuticals, Inc., or Apellis, focused on the use of certain of our base 
editing technology to discover new treatments for complement system-driven diseases. Under the terms of the agreement, we will conduct preclinical 
research on up to six base editing programs that target specific genes within the complement system in various organs, including the eye, liver, and brain. 
Apellis has an exclusive option to license any or all of the six programs and will assume responsibility for subsequent development. We may elect to enter 
into a 50-50 U.S. co-development and co-commercialization agreement with Apellis with respect to one program licensed under the collaboration.

Verve Therapeutics

In April 2019, we entered into a collaboration and license agreement, or the Verve Agreement, with Verve Therapeutics, Inc., or Verve, a company focused 
on gene editing for cardiovascular disease treatments, and in July 2022, we and Verve amended the Verve Agreement. This collaboration allows us to more 
fully realize the potential of base editing in treating cardiovascular disease, a disease area outside of our core focus and where Verve has significant 
expertise. Under the terms of the Verve Agreement, as amended, we granted Verve exclusive worldwide licenses under certain of our editing technologies 
for human therapeutic applications against a total of three liver-mediated, cardiovascular disease targets, including use of our base editing technology for 
each of these targets and use of certain of our gene editing technology for two of such targets. In exchange, we received shares of Verve common stock. 
Additionally, we are eligible to receive milestone payments for certain clinical and regulatory events for licensed products, and we retain the option, after 
the final dosing of the final patient in a Phase 1 clinical trial of a licensed product, to participate in future development and commercialization, and share 
35% of worldwide profits and losses, for any licensed product directed against one of these targets, and share 50% of U.S. profits and losses, for any 
licensed product directed against the other two targets. 

In January 2021, Verve announced it had selected VERVE-101 as its lead product to be developed initially for the treatment of heterozygous familial 
hypercholesterolemia, or HeFH, a potentially fatal genetic heart disease. Individuals with HeFH have a genetic mutation causing high LDL-C levels in the 
blood. Over time, high LDL-C builds up in the heart’s arteries, resulting in reduced blood flow or blockage, and ultimately heart attack or stroke. 
Inactivation of the proprotein convertase subtilisin/kexin type 9, or PCSK9, gene has been shown to up-regulate LDL receptor expression, which leads to 
lower LDL-C levels. By making a single A-to-G change in the DNA genetic sequence of PCSK9, VERVE-101 aims to inactivate the target gene. In 
January 2021, Verve also reported preclinical proof-of-concept data in NHPs that demonstrated the successful use of ABEs to turn off PCSK9.

In July 2022, Verve announced that the first patient had been dosed with VERVE-101 in New Zealand as part of its global Phase 1b clinical trial evaluating 
VERVE-101 as a treatment for patients with HeFH. In September 2022, Verve announced that it had obtained regulatory clearance for a clinical trial 
application in the United Kingdom, and in November 2022, Verve announced that the FDA had placed its IND application in the United States on clinical 
hold.

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Sana Biotechnology

In October 2021, we entered into an option and license agreement, or the Sana Agreement, with Sana Biotechnology, Inc., or Sana, pursuant to which we 
granted Sana non-exclusive research and development and commercial rights to our CRISPR Cas12b technology to perform nuclease editing for certain ex 
vivo engineered cell therapy programs. Under the terms of the Sana Agreement, licensed products include certain specified allogeneic T cell and stem cell-
derived products directed at specified genetic targets, with certain limited rights for Sana to add and substitute such products and targets. The Sana 
Agreement excludes the grant of any Beam-controlled rights to perform base editing. In January 2023, Sana announced that the FDA has cleared its IND 
application to initiate a first-in-human study of SC291, its CD19-targeted allogeneic CAR-T cell therapy, in patients with various B-cell malignancies. In 
connection with this IND clearance, Sana made a milestone payment to us under the Sana Agreement.

Orbital Therapeutics

In September 2022, we entered into a license and research collaboration agreement, or the Orbital Agreement, with Orbital, pursuant to which each of us 
granted the other licenses to certain technology controlled during the three years after entry into the Orbital Agreement that are necessary or reasonably 
useful for the non-viral delivery or the design or manufacture of RNA for the prevention, treatment or diagnosis of human disease. Our license to Orbital is 
for all fields other than our exclusive field and also excludes the targets and substantially all of the indications that are the subject of our existing programs. 
Our exclusive field consists of all products and biologics that function in the process of gene editing or conditioning for use in cell transplantation, or that 
act in combination with any such products or biologics. Orbital’s license to us is for all fields other than Orbital’s exclusive field. Orbital’s exclusive field 
consists of products and biologics that function as vaccines and also of therapeutic proteins, other than therapeutic proteins (i) that use gene editing, (ii) for 
use in conditioning, (iii) for use in regenerative medicine, (iv) for use as a CAR immune therapy, including CAR-T, CAR-NK and CAR-macrophage 
compositions, (v) for use as a t-cell receptor therapy or (vi) that modulate certain immune responses. The licenses are exclusive in each party’s exclusive 
field for three years and non-exclusive in those fields thereafter. We and Orbital agreed that for a period of three years after entry into the Orbital 
Agreement, subject to limited exceptions, we would not research, develop and commercialize, or grant licenses to research, develop and commercialize, 
products or biologics within the other party’s exclusive field.

Institute of Molecular and Clinical Ophthalmology Basel

In July 2020, we announced a research collaboration with the Institute of Molecular and Clinical Ophthalmology Basel, or IOB. Founded in 2018 by a 
consortium that includes Novartis, the University Hospital of Basel and the University of Basel, IOB is a leader in basic and translational research aimed at 
treating impaired vision and blindness. Clinical scientists at IOB have also helped to develop better ways to measure how vision is impacted by Stargardt 
disease. 

Additionally, researchers at IOB have developed living models of the retina, known as organoids, which can be used to test novel therapies. Under the 
terms of the agreement with IOB, the parties will leverage IOB’s unique expertise in the field of ophthalmology along with our novel base editing 
technology to advance programs directed to the treatment of certain ocular diseases, including Stargardt disease.

Competition

The pharmaceutical and biotechnology industries, including the gene editing field, are characterized by rapidly advancing technologies, intense 
competition, and a strong emphasis on intellectual property. While we believe that our differentiated technology, scientific expertise, and intellectual 
property position provide us with competitive advantages, we face potential competition from a variety of companies in these fields. Within these 
industries, we will compete with existing large pharmaceutical companies, specialty pharmaceutical companies, and biotechnology companies.

There are several other companies utilizing CRISPR/Cas9 nuclease technology, including Caribou Biosciences, Editas Medicine, CRISPR Therapeutics, 
Intellia Therapeutics, Arbor Biotechnologies, Metagenomi, and Mammoth Biosciences. Several additional companies utilize other nuclease-based gene 
editing technologies, including Zinc Fingers, Arcuses, and TAL Nucleases, including Sangamo Biosciences, Precision BioSciences, bluebird bio, Allogene 
Therapeutics and Cellectis. Additionally, newer gene editing modalities are emerging, including from Prime Medicine, Tessera Therapeutics, Shape 
Therapeutics, Scribe Therapeutics, Korro Bio, Tome Biosciences, PerkinElmer (formerly Horizon Discovery) and Intellia Therapeutics. PerkinElmer, 
Metagenomi and Intellia Therapeutics are developing base editing technology and Tessera Therapeutics is utilizing mobile genetic elements for gene 
editing. In addition, we face competition from companies utilizing various gene therapy, epigenetic modulation, oligonucleotide, and CAR-T therapeutic 
approaches.

We are also aware of companies with products in development in our disease areas where we will compete with approved therapies, those in development 
today, and those emerging in the future. For hemoglobinopathies, these companies include Global Blood Therapeutics (acquired by Pfizer), CRISPR 
Therapeutics, Novartis Pharmaceuticals, Sangamo Therapeutics, Editas Medicine, Homology Medicines, Graphite Bio and Vera Therapeutics (formerly 
Trucode Gene Repair). For T-cell malignancies, these include Gracell Bio, iCell Gene Therapeutics, PersonGen and Wugen. More broadly in the immuno-
oncology cell therapy space, these include Allogene Therapeutics, Cellectis, 2seventy bio, CRISPR Therapeutics, Adicet Bio, Bristol Myers Squibb, Fate 
Therapeutics, Gilead 

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Sciences, Novartis Pharmaceuticals, Poseida Therapeutics, Precision Bio, Legend Biotech and Autolus Therapeutics. For our liver targeted therapies, these 
include Intellia Therapeutics, Editas Medicines, CRISPR Therapeutics, Wave Life Sciences, Arrowhead Pharmaceuticals, Dicerna Pharmaceuticals, 
Excision BioTherapeutics, Ultragenyx, Apic Bio, Arrowhead Pharmaceuticals, LogicBio Therapeutics, Generation Bio and Vertex.

Any product candidates that we successfully develop and commercialize will compete with existing therapies and new therapies that may become available 
in the future that are approved to treat the same diseases for which we may obtain approval for our product candidates. This may include other types of 
therapies, such as small molecule, antibody, and/or protein therapies.

In addition, many of our current or potential competitors, either alone or with their collaboration partners, have significantly greater financial resources and 
expertise in research and development, manufacturing, conducting preclinical studies and clinical trials and seeking approval for products than we do today. 
Mergers and acquisitions in the pharmaceutical, biotechnology and gene therapy industries may result in even more resources being concentrated among a 
smaller number of our competitors. Smaller or early-stage companies may also prove to be significant competitors, particularly through collaborative 
arrangements with large and established companies. We also compete with these companies in recruiting, hiring and retaining qualified scientific and 
management talent, establishing clinical trial sites and patient registration for clinical trials, obtaining manufacturing slots at CMOs, and in acquiring 
technologies complementary to, or necessary for, our programs. Our commercial opportunity could be reduced or eliminated if our competitors develop and 
commercialize products that are safer, more effective, particularly if they represent cures, have fewer or less severe side effects, are more convenient, or are 
less expensive than any products that we may develop. Our competitors also may obtain FDA or other regulatory approval for their products more rapidly 
than we may obtain approval for ours, which could result in our competitors establishing a strong market position before we are able to enter the market. 
The key competitive factors affecting the success of all of our programs are likely to be their efficacy, safety, convenience, and availability of 
reimbursement.

Intellectual property 

Our success depends in part on our ability to obtain and maintain proprietary protection for our platform technology, our programs, and know-how related 
to our business, defend and enforce our intellectual property rights, in particular, our patent rights, preserve the confidentiality of our trade secrets, and 
operate without infringing, misappropriating or otherwise violating any valid and enforceable intellectual property rights of others. We seek to protect our 
proprietary position by, among other things, exclusively licensing and filing U.S. and certain foreign patent applications related to our platform technology, 
existing and planned programs, and improvements that are important to the development of our business, where patent protection is available. 
Notwithstanding these efforts, we cannot be sure that patents will be granted with respect to any patent applications we have licensed or filed or may 
license or file in the future, and we cannot be sure that any patents we have licensed or patents that may be licensed or granted to us in the future will not be 
challenged, invalidated, or circumvented or that such patents will be commercially useful in protecting our technology. For more information regarding the 
risks related to our intellectual property, please see Item 1A., Risk factors—Risks related to our intellectual property, in this Annual Report on Form 10-K.

Our wholly owned and our in-licensed patents and patent applications cover various aspects of our base editing platform and our programs, including: 

•

•

•

•

•

•

•

•

•

•

•

•

C-to-T DNA base editors 

A-to-G DNA base editors

A-to-I RNA base editors, or REPAIR 

C-to-U RNA base editors, or RESCUE 

Dual editing C-to-T and A-to-G DNA base editors

CRISPR/Cas12b systems for nuclease editing 

Novel guide RNA sequences 

Systems and methods for increasing the specificity of base editing 

Multiplex base editing in immune cells ex vivo 

Methods for evaluating base editing specificity 

Therapeutic methods 

Delivery modality 

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We also have an option to license patents and patent applications relating to CRISPR/Cas9 systems. We intend to continue to pursue, when possible, 
additional patent protection, including composition of matter, method of use, and process claims, directed to each component of our platform technology 
and the programs in our portfolio. As of December 31, 2022, our wholly-owned patent portfolio consisted of three issued U.S. patents, and two issued 
patents in jurisdictions outside the United States. We also have approximately 301 pending patent applications, including PCT applications, provisional 
patent applications and counterparts to the foregoing U.S. and foreign patents. In addition, Beam co-owns 24 pending patent applications between the 
Broad Institute, Inc., UCL Business, Ltd., and Apellis Pharmaceuticals, Inc. The patents and patent applications outside of the United States were filed in 
numerous jurisdictions, including Australia, Brazil, Canada, China, Europe, Hong Kong, India, Japan, Korea, Singapore and South Africa. Many of our 
owned patents and patent applications are related to our DNA base editing technology, including claims to base editor variants with enhanced activities or 
novel properties, methods of using such base editors, methods of using such base editors for therapeutic indications, multiplex base editing in immune cells 
ex vivo, guide RNAs that target base editors to therapeutically relevant DNA sequences, and methods for evaluating base editing specificity. Certain of our 
owned patents and patent applications are related to viral and non-viral delivery technologies. If issued as U.S. patents, and if the appropriate maintenance 
fees are paid, the U.S. patents would be expected to expire between 2039 and 2044, excluding any additional term for patent term adjustments or patent 
term extensions. 

As of December 31, 2022, our in-licensed patent portfolio consisted of approximately 37 issued U.S. patents, and approximately 90 issued patents in 
jurisdictions outside the United States. We also have approximately 302 pending patent applications, including PCT applications, provisional patent 
applications and counterparts to the foregoing U.S. and foreign patents. The patents and patent applications outside of the United States were filed in 
numerous jurisdictions, including Australia, Canada, China, Europe, Hong Kong, India, Israel, Japan, Korea, New Zealand, Russia and Singapore. The 
patents and applications from our in-licensed portfolio for DNA base editing include claims to novel base editors, claims to engineered deaminase enzymes 
(e.g., evolved TadA) used in the base editors, compositions including the base editor or engineered deaminase as a component, methods of using such base 
editors, including methods of using such base editors for therapeutic indications, and guide RNAs that target base editors to therapeutically relevant DNA 
sequences. The in-licensed patents and applications also cover various aspects related to the platform technology, including base editing systems that 
employ S. pyogenes Cas9, S. aureus Cas9, Cas9 PAM variants, inactive forms of Cas9, and/or Cas9 nickases, and systems for delivery of base editors. The 
patents and applications from our in-licensed portfolio for RNA base editing include claims to novel base editors, compositions including the base editor as 
a component, guide RNAs that target base editors to therapeutically relevant RNA sequences, and methods of using such base editors, including methods of 
using such base editors for therapeutic indications. The patents and applications from our in-licensed portfolio for Cas12b editing include claims to 
methods of using Cas12b to modify DNA (e.g., nuclease cleavage of DNA) and engineered and/or non-naturally occurring compositions including Cas12b 
as a component. The patents and applications from our in-licensed portfolio for delivery technologies include claims to novel lipid-based delivery systems 
and compositions, viral-based delivery systems and compositions, and methods of using such systems and compositions to deliver base editors. The patents 
and applications from our in-licensed portfolio for the balance of our platform include claims to compositions and methods for delivery of charged base 
editor proteins into cells, modification and improvements to the base editing systems including improvements to the nucleotide binding protein component, 
guide RNA component and base editing enzyme component of the base editing complex, methods for evaluating gene targeting and base editing efficiency 
and compositions and methods for prime editing. Our current in-licensed patents and patent applications, if the appropriate maintenance fees are paid, are 
expected to expire between 2034 and 2040, excluding any additional term for patent term adjustments or patent term extensions (or the corresponding 
foreign equivalent). For information related to our in-licensed intellectual property, see the subsection below titled “—Intellectual Property Licenses.”

We also have a nonexclusive license to conduct research activities and an option to exclusively license certain patents and patent applications directed to 
Cas9 and Cas12a from Editas, who in turn has licensed such patents from various academic institutions. In the case of Cas9, a number of the U.S. patents 
are subject to an interference declared by the Patent and Trademark office, and a number of the European patents are the subject of one or more 
oppositions. For more information regarding the risks related to our intellectual property, please see Item 1., Business—Intellectual property—Intellectual 
property licenses and Item 1A., Risk factors—Risks related to our intellectual property, in this Annual Report on Form 10-K. 

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The term of individual patents depends upon the legal term for patents in the countries in which they are granted. In most countries, including the United 
States, the patent term is 20 years from the earliest claimed filing date of a non-provisional patent application in the applicable country. However, the actual 
protection afforded by a patent varies from country to country, and depends upon many factors, including the type of patent, the scope of its coverage, the 
availability of regulatory-related extensions, the availability of legal remedies in a particular country and the validity and enforceability of the patent. In the 
United States, a patent’s term may, in certain cases, be lengthened by patent term adjustment, or PTA, which compensates a patentee for administrative 
delays by the USPTO in examining and granting a patent, or may be shortened (e.g., if a patent is terminally disclaimed over a commonly owned patent 
having an earlier expiration date). In some instances, such a PTA may result in a U.S. patent term extending beyond 20 years from the earliest date of filing 
a non-provisional patent application related to the U.S. patent. Patent term extensions, or PTE, under the Drug Price Competition and Patent Term 
Restoration Act of 1984, commonly known as the Hatch-Waxman Act, are also possible for patents that cover an FDA-approved drug as compensation for 
the patent term lost during the FDA regulatory review process. The Hatch-Waxman Act permits a PTE of up to five years beyond the expiration of the 
patent. The length of the PTE is related to the length of time the drug is under regulatory review. PTE cannot extend the remaining term of a patent beyond 
a total of 14 years from the date of product approval and only one patent applicable to an approved drug, a method for using it, or a method of 
manufacturing it, may be extended. Similar provisions are available in Europe and certain other jurisdictions to extend the term of a patent that covers an 
approved drug. In the future, if our products receive regulatory approval, we may be eligible to apply for PTEs on patents covering such products, however 
there is no guarantee that the applicable authorities, including the FDA in the United States, will agree with our assessment of whether such PTE should be 
granted, and if granted, the length of such PTE. For more information regarding the risks related to our intellectual property, please see Item 1A., Risk 
factors—Risks related to our Intellectual property, in this Annual Report on Form 10-K.

We also rely on trade secrets, know-how, continuing technological innovation, and confidential information to develop and maintain our proprietary 
position and protect aspects of our business that are not amenable to, or that we do not consider appropriate for, patent protection. We seek to protect our 
proprietary technology and processes, in part, by confidentiality agreements with our employees, consultants, scientific advisors, and contractors. We also 
seek to preserve the integrity and confidentiality of our data and trade secrets by maintaining physical security of our premises and physical and electronic 
security of our information technology systems. While we have implemented measures to protect and preserve our trade secrets, such measures can be 
breached, and we may not have adequate remedies for any such breach. In addition, our trade secrets may otherwise become known or be independently 
discovered by competitors. For more information regarding the risks related to our intellectual property, please see Item 1A., Risk factors—Risks related to 
our intellectual property, in this Annual Report on Form 10-K. 

We also rely on trademark protection for our company name and related designs. As of December 31, 2022, our registered trademark portfolio contained 
approximately 20 registered/allowed trademarks and pending trademark applications in the United States and in certain overseas jurisdictions.    

Intellectual property licenses 

We are a party to a number of license agreements under which we license patents, patent applications, and other intellectual property from third parties. The 
licensed intellectual property covers, in part, CRISPR-related compositions of matter and their use for base editing. These licenses impose various diligence 
and financial payment obligations on us. We expect to continue to enter into these types of license agreements in the future. We consider the following 
license agreements to be material to our business. 

License Agreement with The President and Fellows of Harvard College 

In June 2017, we entered into a license agreement with Harvard, as amended, or the Harvard License Agreement, pursuant to which we received an 
exclusive, worldwide, royalty-bearing, sublicensable license under certain patent rights owned or controlled by Harvard to make, have made, offer for sale, 
sell, have sold and import licensed products in the field of the prevention or treatment of any and all human diseases and conditions, excluding human 
germline modification and products for non-human animal and plant applications. We also received a non-exclusive, worldwide, royalty-bearing, 
sublicensable license to research, have researched, develop and have developed “enabled” products related to the Harvard patent rights which are not 
licensed products.

The licensed patents are directed, among other things, to C-to-T, A-to-G, and C-to-G base editors, for the treatment of certain diseases and conditions and 
to base editing, more generally. 

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Under the Harvard License Agreement, we are required to use commercially reasonable efforts to develop products incorporating the base editing 
technology covered in the licensed patents, in accordance with a development plan that we prepared and submitted to Harvard. The development plan 
includes certain development milestones that we are required to meet, as well as the timelines for the completion thereof, and we may update the 
development plan from time to time as we believe necessary, in our good faith judgment, for us to meet such milestones. If we are successfully able to gain 
regulatory approval in any country to introduce a licensed product into the commercial market in such country, then we are also required to use 
commercially reasonable efforts to commercialize such licensed product and make such licensed product reasonably available to the public. If we fail to 
meet any of the deadlines for the development milestones, then Harvard may, depending on the nature of the failure and the impacted milestones, either 
terminate the Harvard License Agreement or our licenses with respect to the applicable licensed product(s), subject to certain exceptions and opportunities 
for us to cure such failure. Additionally, we are required to meet development milestones for the development of a licensed product covered by certain sub-
categories of licensed patents. Failure to achieve milestones with respect to such sub-categories gives Harvard the right to grant third parties non-exclusive 
licenses under such failed sub-categories.

The licenses granted to us under the Harvard License Agreement are expressly subject to certain preexisting rights held by Harvard and certain third 
parties. For example, certain of the licensed patents were developed by employees of the Howard Hughes Medical Institute and were subsequently assigned 
to Harvard but remain subject to a non-exclusive license between Harvard and Howard Hughes, pursuant to which Howard Hughes received a license from 
Harvard under certain of the licensed patents for research purposes with the right to sublicense to non-profit and governmental entities. In addition, certain 
of the licensed patents claim or cover inventions resulting from research that was sponsored by the U.S. government, and the U.S. government retains 
certain rights with respect to such licensed patents under applicable U.S. law. Harvard additionally retains limited rights for itself and for other non-profit 
research organizations to practice the licensed patents for research, educational, and scholarly purposes. Furthermore, Harvard retains the right, beginning a 
certain period of time after regulatory approval of any licensed product in the U.S. or certain European countries, to grant third parties the non-exclusive 
right to develop, manufacture, have manufactured, import, have imported, offer for sale, sell, have sold or otherwise distribute or have distributed such 
licensed product or an equivalent thereof solely for sale on a locally-affordable basis in certain specified developing countries in which we do not have 
plans to seek regulatory approval. 

Although the licenses granted to us under the Harvard License Agreement are exclusive, Harvard may grant a license to a third party under the licensed 
patents to research, develop, and commercialize a product directed to one or more particular targets, or a proposed product, in the field under limited 
circumstances. If a third party that is not a specified competitor of ours inquires with Harvard for such a license, and then attempts to enter into a sublicense 
agreement with us after being referred to us by Harvard and fails to do so after a certain period of time and presents to Harvard a proposal including certain 
information describing the proposed development and commercialization of such product, then Harvard may notify us of such proposal. If we are not 
researching, developing or commercializing such a proposed product, then we can notify Harvard as to whether we are interested in developing such 
proposed product, entering into a sublicense agreement with such third party to develop such proposed product, or entering into a sublicense with another 
third party to develop the same proposed product. If we inform Harvard that we are interested in developing such proposed product, then we will prepare a 
development plan, similar in scope to the development plan under the Harvard License Agreement, to develop such proposed product. If we inform 
Harvard that we are interested in entering into a sublicense agreement pursuant to which a third party would receive a sublicense from us under the licensed 
patents to develop such proposed product, then we will have a specified period of time to enter into such a sublicense agreement and provide reasonable 
evidence thereof. If we are not researching, developing, or commercializing such a proposed product, fail to provide a development plan, or fail to enter 
into a sublicense agreement with respect to such proposed product, in each case, within specified time periods, then Harvard may grant a license to the 
applicable third party under the licensed patents to research, develop, and commercialize such proposed product. 

We are permitted to further sublicense our rights under the Harvard License Agreement to third parties, provided that any such sublicense agreement with a 
third party must remain in compliance with and be consistent with the terms of the Harvard License Agreement, and certain rights granted to us under the 
Harvard License Agreement can only be sublicensed to bona fide collaboration partners who are working with us to develop one or more licensed products. 
In addition, any such sublicense agreement must include certain provisions to ensure our ability to comply with the Harvard License Agreement. We are 
also responsible for any breaches of a sublicense agreement by the applicable sublicensee, if such breach results in a material breach of the Harvard License 
Agreement, provided that if we cure the breach or diligently enforce our rights to terminate the sublicense, we will not be subject to termination by Harvard 
for the sublicensee’s breach, even if it resulted in a material breach of the Harvard Agreement. 

In exchange for the licenses granted to us under the Harvard License Agreement, we initially issued to Harvard 101,363 shares of our common stock and 
subsequently issued 765,549 shares of our common stock pursuant to anti-dilution rights in the Harvard License Agreement. We are also required to pay to 
Harvard an annual license maintenance fee ranging from low-to-mid five figures to low six figures, depending on the particular calendar year. Harvard is 
also entitled to receive potential clinical and regulatory milestones in the mid-to-high eight figure range, and to receive success payments based on 
increases in the fair market value of our common stock. If we undergo a change of control during the term of the Harvard License Agreement, then certain 
of the milestone payments would be increased. We paid Harvard a total of $9.0 million upon the completion of our Series A and Series B financings. 

23

 
In May 2021, the first success payment measurement occurred and amounts due to Harvard were calculated to be $15.0 million. We elected to make the 
payment in shares of our common stock and issued 174,825 shares of our common stock to settle this liability on June 10, 2021. We may additionally owe 
Harvard success payments of up to an additional $90.0 million.

With respect to the sale of licensed products by us, our affiliates or our sublicensees, Harvard is entitled to receive low single digit royalties on net sales of 
licensed products until, on a country-by-country basis, the latest of the expiration of (i) the last to expire valid claim of a licensed patent covering the 
applicable licensed product, (ii) the period of exclusivity associated with such licensed product in such country or (iii) a certain number of years after the 
first commercial sale of such licensed product in such country. We are entitled to certain reductions and offsets on these royalties with respect to a licensed 
product in a given country and certain increases in the event we, our affiliates or sublicensees bring patent challenges relating to any licensed patents 
(subject to an ability to delay and/or avoid such increases by diligently seeking to terminate and/or terminating the sublicense that has taken the applicable 
action). If we sublicense our rights to develop or commercialize a licensed product under the Harvard License Agreement to a third party and we receive 
non-royalty sublicense income, then Harvard is entitled to a percentage of such consideration, ranging from the high single digits to an amount in the first 
decile depending on the date in which such sublicense agreement is executed and the stage of development our licensed products at such time. 

Harvard is responsible for the prosecution and maintenance of all licensed patents, provided that we have customary consultation, comment, and review 
rights with respect to such prosecution and maintenance activities. We are responsible for Harvard’s documented out-of-pocket expenses with respect to 
such prosecution and maintenance, but if Harvard enters into a license agreement with a third party pursuant to which it grants such third party a license 
under the licensed patents outside of our field, then Harvard must use reasonable efforts to include a provision in such agreement that provides for an 
apportionment of prosecution and maintenance costs between us and such third party with respect to such licensed patents. If we choose to no longer pay 
for the prosecution and maintenance costs of a given licensed patent, then we will be relieved of such payment obligation, but our license with respect to 
such licensed patent will also terminate. 

Unless earlier terminated, the Harvard License Agreement will remain in effect until the later of the last-to-expire valid claim of the licensed patents or the 
end of the last to expire royalty term. We may terminate the Harvard License Agreement at our convenience following written notice to Harvard. Either 
party may terminate the Harvard License Agreement for a material breach of the other party, subject to a notice and cure period. Harvard may also 
terminate the Harvard License Agreement in the event of our bankruptcy or insolvency or if we fail to procure and maintain insurance. Upon expiration or 
termination of the Harvard License Agreement, the licenses granted to us will terminate and all rights under the licensed patent rights will revert to 
Harvard. 

License Agreement with Editas Medicine, Inc. 

In May 2018, we entered into a license agreement, or the Editas License Agreement, with Editas pursuant to which we received an exclusive (even as to 
Editas), royalty-bearing, sublicensable, worldwide license under certain patent rights owned or controlled by Editas related to certain base editing 
technologies and CRISPR technology to develop, commercialize, make, have made, use, offer for sale, sell and import certain base editing products for the 
treatment of human diseases or conditions. The license we received is non-exclusive with respect to certain specified targets. Our licensed field excludes 
the use of certain gene editing technologies in certain fields of use that have already been licensed to other partners of Editas, provided that our licensed 
field may expand if the fields licensed to other Editas partners are reduced or are otherwise modified as a result of any termination, expiration, or 
amendment to Editas’ agreements with such partners. In addition, we received a royalty-free, non-sublicensable, non-exclusive license under a separate set 
of patent rights owned or controlled by Editas to conduct research activities in our licensed field and for which we have an option to obtain an exclusive 
license from Editas. 

Certain of the patents licensed to us under the Editas License Agreement were licensed to Editas from Broad Institute and Harvard and certain of the 
patents for which we have an option to obtain a license were licensed to Editas from the Massachusetts General Hospital, or MGH. Accordingly, the 
licenses granted to us under the Editas License Agreement are subject to the terms and conditions set forth in each of the license agreements concerning the 
licensed patents between Broad Institute, Harvard and Editas, or the Broad/Harvard Head Licenses, and each of the license agreements concerning the 
patents for which we have an option to obtain a license between MGH and Editas, or the MGH Head Licenses. 

As described above, Editas granted us an exclusive option to obtain an exclusive license under certain patents on a patent family-by-patent family basis. If 
we so exercise the option with respect to a patent family of such optioned patents, then we would receive an exclusive license to such patent family of the 
same scope as the other patents exclusively licensed to us under the Editas License Agreement. In order to exercise an option with respect to a patent 
family of these optioned patents we would pay an eight-figure option exercise fee, depending on the date in which particular option is exercised. 

Under the Editas License Agreement, we are required to use commercially reasonable efforts to develop a licensed product in our licensed field in each of 
the United States, Japan, the United Kingdom, or U.K., Germany, France, Italy and Spain. If we are successfully able to gain regulatory approval in any 
country for a licensed product, then we are also required to use commercially reasonable efforts to commercialize such licensed product in such country. 
We also have sole control and responsibility over all regulatory activities with respect to the development of licensed products. 

24

 
We are permitted to further sublicense certain of our rights under the Editas License Agreement to third parties, provided that any such sublicense 
agreement with a third party must remain in compliance with and be consistent with the terms of the Editas License Agreement and the Broad/Harvard 
Head Licenses and MGH Head Licenses, as applicable. We are also responsible for any breaches of a sublicense agreement by the applicable sublicensee 
and are responsible for all payments due under the Editas License Agreement by operation of any such sublicense. Following the signing of the Editas 
License Agreement, we obtained the right to further sublicense our rights the licensed patents from Broad Institute and Harvard to third parties, provided 
that we comply with certain sublicensing requirements under each of the Broad/Harvard Head Licenses as if we were Editas, as well as certain other 
customary conditions. We have not obtained any such right from MGH allowing us to further sublicense our rights under the licensed patents from MGH to 
third parties and will require written consent in the event we wish to further sublicense such rights to a third party. 

Upon the execution of the Editas License Agreement, we paid Editas an upfront fee of $180,000. We also issued to Editas 1,833,333 shares of our Series A-
1 Preferred Stock and 1,222,222 shares of our Series A-2 Preferred Stock. In addition, if any of our commercial, regulatory, development or sales activities 
with respect to the licensed products triggers a milestone payment or sublicense income that Editas owes under the Broad/Harvard Head Licenses or the 
MGH Head Licenses, then we are required to pay Editas the full amount of such milestone payment or sublicense income, as applicable; provided that we 
will not pay Editas for any sublicense income due as a result of our payment of any option exercise fee to Editas. Aggregate milestone amounts under the 
Editas License Agreement could equal up to $68.8 million for each product developed and commercialized using rights related to certain base editing 
technologies and CRISPR technology; in the event we develop and commercialize products covered by claims from the additional patent families licensed 
or optioned to us under the Editas License Agreement, aggregate milestone payments could equal up to $74.0 million per product. The percentage of 
sublicense income we would owe under the Editas License Agreement ranges from none to amounts between 10% and 20%. In addition, we agreed to pay 
for a portion of the annual license maintenance fees and prosecution and maintenance costs that Editas incurs itself or owes under the Broad /Harvard Head 
Licenses and the MGH Head Licenses with respect to the licensed patents. The upfront fee, equity issuance, and option exercise payments we make to 
Editas under the Editas License Agreement constitute both consideration for the licenses granted to us under the Editas License Agreement and 
reimbursement for prosecution and maintenance costs for the licensed patents. 

With respect to the sale of licensed products by us, our affiliates or our sublicensees, we are required to pay to Editas an amount equal to the royalty rates 
that it owes to Broad Institute, Harvard, or MGH under its applicable in-licenses, plus an additional low- to mid-single digit royalty on net sales of licensed 
products, depending on whether such licensed product is covered by an Editas-owned patent and based on the aggregate worldwide net sales of licensed 
products in a given calendar year. We are entitled to certain reductions and offsets on these royalties with respect to a licensed product in a given country 
and if Editas is entitled to receive any reductions or offsets in respect to its royalty payment obligations under the relevant Broad/Harvard Head Licenses or 
MGH Head Licenses, then Editas will use reasonable efforts to avail itself of such reductions, which in turn would reduce our royalty payment obligations 
under the Editas License Agreement. The royalty term expires on licensed product-by-licensed product and country-by-country basis upon the later of (i) 
the last-to-expire royalty term in such country under any applicable Broad/Harvard Head License or MGH Head License, and, if such product is covered by 
a licensed Editas-owned patent, (ii) the date at which such product is no longer covered by a valid claim of a licensed Editas-owned patent in such country. 

As between the parties, Editas is responsible for the prosecution and maintenance of all licensed patents, provided that we have certain information, 
comment, and review rights for certain of the licensed patents. 

Unless earlier terminated, the Editas License Agreement will expire on a licensed product-by-licensed product and country-by-country basis on the 
expiration of the applicable royalty term with respect to such licensed product in such country. We may terminate the Editas License Agreement on written 
notice to Editas subject to a specified notice period. Either party may terminate the Editas License Agreement for a material breach of the other party, 
subject to a notice and cure period. Editas may also terminate the Editas License Agreement if we challenge the validity of any of the licensed patents, 
subject to customary carveouts. Upon expiration or termination of the Editas License Agreement in its entirety or with respect to a family of patents, the 
licenses granted to us will immediately terminate in its entirety or solely with respect to the expired or terminated patent family, as the case may be; 
however, if we have the right to terminate the Editas License Agreement due to Editas’ material breach of the Editas License Agreement, then in lieu of so 
terminating the Editas License Agreement, we can elect to reduce our royalty payment obligations under the Editas License Agreement by certain specified 
percentages. 

License Agreement with The Broad Institute, Inc. 

In May 2018, our affiliate, Blink Therapeutics Inc., or Blink, entered into a license agreement, as amended, or the Broad License Agreement, with Broad 
Institute. In September 2021, Blink merged with and into Beam, such that Blink’s separate corporate existence ceased and Beam continued as the surviving 
corporation and the successor by merger to the Broad License Agreement with respect to Blink. Under the Broad License Agreement, and as further 
detailed below, we received certain rights to RNA base editing technology, including the RNA editor platforms RESCUE™ and REPAIR™, which use 
Cas13 linked to a deaminase to deliver single base A-to-I or C-to-U editing of RNA transcripts, respectively, as well as the Cas12b nuclease family of gene 
editing enzymes. 

25

 
More specifically, under the Broad License Agreement, Broad Institute granted us an exclusive, worldwide, royalty-bearing and sublicensable license under 
certain patent rights to the extent owned or controlled by Broad Institute (including via an interinstitutional agreement with the Massachusetts Institute of 
Technology, or MIT, and Harvard) comprising (i) certain patent rights claiming or disclosing novel CRISPR enzymes and systems (including those related 
to DNA cleaving) or systems, methods and compositions for targeted nucleic acid editing, in each case to exploit products covered by such patents, (ii) 
certain product-specific patent rights claiming or disclosing novel CRISPR enzymes and systems, methods and compositions for targeted nucleic acid 
editing, in each case to exploit base editor products covered by such patents and (iii) certain patent rights generally related to gene targeting to exploit base 
editor products covered by such patents, in each case to make, have made, offer for sale, sell, have sold and import certain licensed products. 

Under the Broad License Agreement, we have also been granted (i) a non-exclusive, royalty-bearing and sublicensable license under all patents exclusively 
licensed to us under the Broad License Agreement to make, have made, offer for sale, sell, have sold and import certain products in our field that were 
made, discovered, developed or determined to have utility through the use of such patents in a research or discovery program commencing before May 
2021 or through the use of transferred materials from Broad Institute but that are not covered by the licensed patents and (ii) a non-exclusive, worldwide, 
royalty-bearing and sublicensable internal research license under all patents exclusively licensed to us. All licenses granted to us by Broad Institute exclude 
human germline modification, the stimulation of biased inheritance of particular genes or, with certain exceptions, traits within a plant or animal population 
and certain modifications of the tobacco plant and are subject to certain retained rights of Broad Institute, Harvard and MIT and the U.S. federal 
government. Broad Institute additionally retains limited rights for itself, Harvard and MIT and for other non-profit research organizations to practice the 
licensed patents for research, educational, and scholarly purposes.

Under the Broad License Agreement, we are required to use commercially reasonable efforts to develop licensed products in accordance with a 
development plan that Blink prepared and submitted to Broad Institute. The development plan includes certain development milestones that we are required 
to meet, as well as the timelines for the completion thereof, and we may update the development plan from time to time if we believe, in our good faith 
judgment, that such update is needed in order to improve our ability to meet such development milestones. We will not be able to delay such development 
milestone timelines without providing a reasonable explanation and plan to Broad Institute and provided further that Broad Institute’s approval of the 
explanation and plan in its reasonable discretion is required for any milestone timeline extension of more than a specified number of years. If we are 
successfully able to gain regulatory approval in any country to introduce a licensed product into the commercial market in such country, then we are also 
required to use commercially reasonable efforts to commercialize such licensed product and make such licensed product reasonably available to the public.

Additionally, we are required to use commercially reasonable efforts to pursue the viability of the technology covered, claimed or disclosed in certain sub-
categories of licensed patents and must initiate a discovery program for the development of a licensed product covered by a valid claim, or otherwise 
generally enabled, by the use of such sub-category of the licensed patents during a certain period of time following the execution of the Broad License 
Agreement and submit an updated development plan and development milestones reasonably acceptable to Broad Institute for such sub-category of the 
licensed patents within such period of time. If we fail to use commercially reasonable efforts to pursue the viability of such technology or to initiate a 
discovery program or to submit an updated development plan in the specified time period then the license under such sub-category of the licensed patents 
will terminate and, if such sub-category of the licensed patents consists of base editor patent rights, our rights with respect to gene targeting licensed patents 
shall convert to non-exclusive so that such rights may be licensed for use to such terminated base editor licensed patents. 

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Broad Institute, MIT, and Harvard also retain the right to grant further licenses under specified circumstances to third parties, other than specified entities, 
that wish to research, develop, and commercialize a product that would otherwise fall within the scope of our exclusive license grant from Broad Institute 
and Harvard pursuant to Broad Institute, Harvard and MIT’s inclusive innovation model. If, after a specified period of time, such a third party inquires with 
Broad Institute for such a license and presents to Broad Institute a proposal including information describing the proposed development and 
commercialization of such a proposed product, then Broad Institute may notify us of the request and the requester’s identity, and the nature of the specific 
proposed product, including the applicable gene to which the proposed product is directed. Broad Institute is not required to share any other information 
provided by the requester to us in connection with the inclusive innovation model. If we are not researching, developing or commercializing such a 
proposed product, then we can notify Broad Institute as to whether in good faith we are interested in developing such proposed product, entering into a 
sublicense agreement with such requesting third party to develop such proposed product, entering into a sublicense with another third party to develop such 
proposed product, or that we are not interested in any of the foregoing. If we inform Broad Institute that we are interested in developing such proposed 
product, then we will prepare a development plan, similar in scope to the development plan under the Broad License Agreement, to develop such proposed 
product and must commence the development program for such proposed product within a specified period. If we inform Broad Institute that we are 
interested in entering into a sublicense agreement pursuant to which the inquiring third party or another third party would receive a sublicense from us 
under the licensed patents to develop such proposed product, then we may enter into such a sublicense agreement and provide reasonable evidence thereof 
during the period. If we decline to conduct the foregoing activities or do not complete such activities within the specified period, which period is reduced 
by the period of time the requesting third party has previously negotiated with us, then Broad Institute may grant a license to the applicable third party 
under the licensed patents to research, develop, and commercialize such proposed product, and our license to such the applicable patent rights will, at 
Broad Institute’s election, terminate with respect to the gene that is the subject of the proposed third party product. 

We are permitted to sublicense the licensed patents to affiliates and third parties, provided that any such sublicense agreement must remain in compliance 
with and be consistent with the terms of the Broad License Agreement. In addition, any such sublicense agreement must include certain customary 
provisions to ensure our ability to comply with the Broad License Agreement. We are also responsible for any breaches of a sublicense agreement by the 
applicable sublicensee and are responsible for all payments due under the Broad License Agreement by operation of any such sublicense. 

As partial consideration for the rights granted under the Broad License Agreement, Broad Institute received 1,940,000 shares of Blink’s common stock. 
The shares issued to Broad Institute were exchanged into 865,240 shares of our common stock in connection with our acquisition of Blink on September 
25, 2018. 

Under the Broad License Agreement, we are also required to pay Broad Institute an annual license maintenance fee ranging from the low- to mid-five 
figures to the low-six figures, depending on the particular calendar year. Broad Institute is also entitled to receive clinical and regulatory milestones totaling 
in the mid-to-high eight figure range, and to receive success payments based on increases in the fair market value of our common stock. 

In May 2021, the first success payment measurement occurred and amounts due to Broad Institute were calculated to be $15.0 million. We elected to make 
the payment in shares of our common stock and issued 174,825 shares of our common stock to settle this liability on June 10, 2021. We may additionally 
owe Broad Institute success payments of up to an additional $90.0 million.

We are also required to pay royalties in the low single digits for products covered by the licensed patents with such royalty reduced by a certain percentage 
for products enabled by the licensed patents or transferred materials, but not covered by the licensed patents. The royalty rate payable by us is subject to 
customary reductions and offsets on these royalties with respect to a product in a given country. The royalty term for a product in a country will terminate 
on the later of the expiration of (i) the last to expire licensed patent covering the applicable product, (ii) the period of exclusivity associated with such 
product in such country or (iii) a certain period of time after the first commercial sale of such product in such country. If we sublicense our rights to 
develop or commercialize a licensed product under the Broad License Agreement to a third party and receive non-royalty sublicense income, then Broad 
Institute is entitled to a percentage of such consideration, ranging from the high single digits to an amount in the low first decile, dependent on the 
development stage of products under the Broad License Agreement at the time of sublicense execution. 

Broad Institute is responsible for the prosecution and maintenance of all licensed patents, provided that we have certain consultation, comment, and review 
rights with respect to such prosecution and maintenance activities of exclusively licensed patent rights. 

Unless earlier terminated, the Broad License Agreement will remain in effect until the later of the last-to-expire valid claim of a licensed patent covering 
our licensed products or the end of the last to expire royalty term. We may terminate the Broad License Agreement for its convenience following written 
notice to Broad Institute subject to a specified notice period. Either party may terminate the Broad License Agreement for a material breach of the other 
party, subject to a notice and cure period. Broad Institute may also terminate the Broad License Agreement in the event of our bankruptcy or insolvency, if 
we fail to procure and maintain insurance or if we, our affiliates or sublicensees bringing patent challenges relating to any licensed patents (subject to a cure 
period for us to terminate the sublicensee that has taken the applicable action). 

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License Agreement with Bio Palette Co., Ltd. 

On March 27, 2019, we entered into a license agreement, or the Bio Palette License Agreement, with Bio Palette Co., Ltd., or Bio Palette, pursuant to 
which we received an exclusive (even as to Bio Palette and its affiliates), sublicensable license under certain patent rights related to base editing owned or 
controlled by Bio Palette to research, make, have made, import, export, distribute, use, have used, sell, have sold or offer for sale, and otherwise exploit 
products for the treatment of human disease throughout the world, but excluding products in the microbiome field in Asia. In addition, we granted Bio 
Palette an exclusive (even as to us and our affiliates) license under certain patent rights related to base editing and gene editing owned or controlled by us to 
research, make, have made, import, export, distribute, use, have used, sell, have sold or offer for sale, and otherwise exploit products in the microbiome 
field in Asia, subject to our right, in its sole discretion, to expand Bio Palette’s license (and the applicable royalty obligations) to the entire territory. Each 
party to the Bio Palette Agreement retains non-exclusive rights to develop and manufacture products in the microbiome field worldwide for the sole 
purpose of exploiting those products in its own territory. Each party agrees to certain coordination obligations in the microbiome field in the event that 
either party determines not to exploit their rights in such field. 

If Bio Palette comes into the control of any other patent right that is useful for the treatment, diagnosis or prevention of any human diseases or conditions 
and intends to grant a license under that patent right in certain defined fields and in certain defined territories, we have the exclusive right of first 
negotiation for an exclusive license under that patent right in those fields and territories. If we come into the control of any other patent right that is useful 
in certain defined fields and intend to grant a license under that patent right in those fields in certain defined territories, Bio Palette has the exclusive right 
of first negotiation for an exclusive license under that patent right in those fields and territories. 

As part of the Bio Palette License Agreement, if we form a Scientific Advisory Board, then Bio Palette will have the right to appoint two representatives to 
such board until the conclusion of the period ending five years after the effective date of the Bio Palette License Agreement. Additionally, we and Bio 
Palette agree to communicate with each other regarding potential base editing collaborations in Japan. 

We are required to use commercially reasonable efforts to develop a licensed product in the United States, Japan, the U.K., France, Germany, Italy and 
Spain. For any licensed product in our licensed field and territory that receives regulatory approval, we are required to use commercially reasonable efforts 
to commercialize that licensed product in the relevant country. Bio Palette is required to use commercially reasonable efforts to develop a licensed product 
in Japan. For any licensed product that receives regulatory approval, Bio Palette is required to use commercially reasonable efforts to commercialize such 
licensed product in the relevant country.

Certain of the patents licensed to us under the Bio Palette License Agreement were licensed to Bio Palette from Kobe University under a license agreement 
we refer to as the Kobe Head License. Accordingly, the licenses granted to us under the Bio Palette License Agreement are subject to the terms and 
conditions set forth in the Kobe Head License, which include provisions providing for certain rights to be retained by third parties including governmental 
authorities.

We and Bio Palette are both permitted to sublicense the licensed patents to affiliates and third parties, provided that the applicable terms of the Bio Palette 
License Agreement and the Kobe Head License would apply to such affiliates and third parties. The sublicensing party is also responsible for any breaches 
of such terms by the applicable sublicensee and is responsible for all payments due under the Bio Palette License Agreement by operation of any such 
sublicense.

Upon the execution of the Bio Palette License Agreement, we paid Bio Palette an upfront fee of $0.5 million. In connection with the execution of the Bio 
Palette License Agreement, we issued to Bio Palette 16,725 shares of our common stock, with an agreement to issue additional shares of our common stock 
in the low six figures in the event that the referenced Bio Palette patent issues in the United States. Upon the issuance of a certain Bio Palette patent in the 
United States in June 2020, we made a milestone payment to Bio Palette of $2.0 million and, in July 2020, issued to Bio Palette 175,000 shares of our 
common stock valued at $0.3 million. We also agreed to pay a royalty at a fraction of a percent on net sales of products that are covered by the patents 
licensed by Bio Palette to us, and Bio Palette agreed to pay a royalty at a fraction of a percent on net sales of products that are covered by the patents 
licensed by us to Bio Palette. The royalty term for a product in a country will terminate on the later of the expiration of (i) patent-based exclusivity with 
respect to such licensed product in such country or (ii) regulatory exclusivity with respect to such licensed product in such country.

Any intellectual property arising out of activities under the Bio Palette License Agreement will be owned by the party inventing such intellectual property. 
Bio Palette is responsible for the prosecution and maintenance of all patents licensed by Bio Palette to us, provided that we have customary consultation, 
comment and review rights with respect to such prosecution and maintenance activities solely with respect to national entries of a certain specified PCT 
application. We have the sole right to prosecute and maintain patents licensed by us to Bio Palette. 

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Unless earlier terminated, the Bio Palette License Agreement will expire on a licensed product-by-licensed product and country-by-country basis upon the 
expiration of the applicable royalty term for each such licensed product and country. Each party has the right to terminate the Bio Palette License 
Agreement for convenience with respect to the license granted to such party subject to a specified notice period. Either party may terminate the Bio Palette 
License Agreement with respect to the license granted to the other party for a material breach by the other party, subject to a specified notice and cure 
period. Additionally, either party may also terminate the Bio Palette License Agreement in the event of the other party’s bankruptcy or insolvency or if the 
other party, its affiliates or sublicensees brings a patent challenge relating to any licensed patents (but, in the case of such a patent challenge by a 
sublicensee, subject to a cure period for such party to terminate its agreement with the sublicensee that has taken the applicable action). 

Government regulation 

Government authorities in the United States, at the federal, state and local level, and in other countries and jurisdictions, including the EU, extensively 
regulate, among other things, the research, development, testing, manufacturing, packaging, labeling, storage, record keeping, reimbursement, advertising, 
promotion, distribution, post-approval monitoring and reporting and import and export, pricing and reimbursement of pharmaceutical products, including 
biological products. Failure to comply with the applicable regulatory requirements at any time during the product development process or post-approval 
may subject a sponsor for marketing approval to delays in development or approval, as well as administrative and judicial sanctions. 

The processes for obtaining marketing approvals in the United States and in foreign countries and jurisdictions and compliance with applicable statutes and 
regulatory requirements, both pre- and post-approval, and obtaining reimbursement status will continue to require the expenditure of substantial time and 
financial resources. The regulatory requirements applicable to drug and biological product development, approval, and marketing are subject to change, and 
regulations and administrative guidance often are revised or reinterpreted by the agencies in ways that may have a significant impact on our business. 
Ethical, social and legal concerns about gene therapy, genetic testing and genetic research could result in additional regulations restricting or prohibiting the 
processes we may use.

Licensure and regulation of biologics in the United States 

In the United States, our candidate products are regulated as biological products, or biologics, under the Public Health Service Act, or the PHSA, and the 
Federal Food, Drug and Cosmetic Act, or the FDCA, the implementing regulations of the FDA and other federal, state and local statutes and regulations. 

The FDA must approve a product candidate for a therapeutic indication before it may be marketed in the United States. A company, institution, or 
organization which takes responsibility for the initiation and management of a clinical development program for such products is referred to as a sponsor. A 
sponsor seeking approval to market and distribute a new biologic in the United States generally must satisfactorily complete each of the following steps: 

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preclinical laboratory tests, animal studies and formulation studies all performed in accordance with the FDA’s Good Laboratory Practice, or 
GLP, regulations; 

completion of the manufacture, under cGMP conditions, of the drug substance and drug product that the sponsor intends to use in human 
clinical trials along with required analytical and stability testing;

design of a clinical protocol and submission to the FDA of an IND application for human clinical testing, which must become effective 
before human clinical trials may begin; 

approval by an independent institutional review board, or IRB, representing each clinical site before each clinical trial may be initiated; 

performance of adequate and well-controlled human clinical trials to establish the safety, potency, and purity of the product candidate for 
each proposed indication, in accordance with current Good Clinical Practices, or GCP; 

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preparation and submission to the FDA of a Biologics License Application, or BLA, requesting marketing of the biological product for one 
or more proposed indications, including submission of detailed information on the manufacture and composition of the product and proposed 
labelling; 

review of the BLA by an FDA advisory committee, where applicable; 

satisfactory completion of one or more FDA inspections of the manufacturing facility or facilities, including those of third parties, at which 
the product, or components thereof, are produced to assess compliance with current Good Manufacturing Practices, or cGMP, requirements; 
to assure that the facilities, methods, and controls are adequate to preserve the product’s identity, strength, quality, and purity; and, if 
applicable, the FDA’s current good tissue practice, or cGTP, requirements for the use of human cellular and tissue products; 

satisfactory completion of any FDA audits of the non-clinical and clinical trial sites to assure compliance with GLPs and GCPs and the 
integrity of clinical data in support of the BLA; 

payment of the application fee under the Prescription Drug User Free Act, or PDUFA, unless exempted; and 

FDA review and approval of the BLA, which may be subject to additional post-approval requirements, including the potential requirement to 
implement a Risk Evaluation and Mitigation Strategy, or REMS, and any post-approval studies required by the FDA. 

Preclinical studies and investigational new drug application 

Before testing any investigational biological product in humans, including a gene editing product candidate, the product candidate must undergo preclinical 
testing. Preclinical tests include laboratory evaluations of product chemistry, formulation and stability, as well as studies to evaluate the potential for 
efficacy and toxicity in animal studies. These studies are generally referred to as IND-enabling studies. The conduct of the preclinical tests and formulation 
of the compounds for testing must comply with federal regulations and requirements, including GLP regulations and standards and the United States 
Department of Agriculture’s Animal Welfare Act, if applicable. The results of the preclinical tests, together with manufacturing information and analytical 
data, are submitted to the FDA as part of an IND application. 

An IND is an exemption from the FDCA that allows an unapproved drug or biological product to be shipped in interstate commerce for use in an 
investigational clinical trial. Such authorization must be secured prior to interstate shipment and administration of any product candidate that is not the 
subject of an approved new drug application, or NDA. In support of a request for an IND, applicants must submit a protocol for each clinical trial and any 
subsequent protocol amendments must be submitted to the FDA as part of the IND. An IND automatically becomes effective 30 days after receipt by the 
FDA, unless before that time the FDA raises concerns or questions about the product or conduct of the proposed clinical trial, including concerns that 
human research subjects will be exposed to unreasonable health risks. In that case, the IND sponsor and the FDA must resolve any outstanding FDA 
concerns before the clinical trials can begin. Preclinical or nonclinical testing typically continues even after the IND is submitted. 

Following commencement of a clinical trial under an IND, the FDA may also place a clinical hold or partial clinical hold on that trial. A clinical hold is an 
order issued by the FDA to the sponsor to delay a proposed clinical investigation or to suspend an ongoing investigation. A partial clinical hold is a delay 
or suspension of only part of the clinical work requested under the IND. For example, a partial clinical hold might state that a specific protocol or part of a 
protocol may not proceed, while other parts of a protocol or other protocols may do so. No more than 30 days after the imposition of a clinical hold or 
partial clinical hold, the FDA will provide the sponsor a written explanation of the basis for the hold. Following the issuance of a clinical hold or partial 
clinical hold, a clinical investigation may only resume once the FDA has notified the sponsor that the investigation may proceed. The FDA will base that 
determination on information provided by the sponsor correcting the deficiencies previously cited or otherwise satisfying the FDA that the investigation 
can proceed or recommence. Occasionally, clinical holds are imposed due to manufacturing issues that may present safety issues for the clinical study 
subjects. 

Additionally, genetic medicine clinical trials conducted at institutions that receive funding for recombinant DNA research from the NIH also are potentially 
subject to review by a committee within the U.S. National Institutes of Health’s, or NIH’s, Office of Science Policy called the Novel and Exceptional 
Technology and Research Advisory, or the NExTRAC. As of 2019, the charter of this review group has evolved to focus public review on clinical trials that 
cannot be evaluated by standard oversight bodies and pose unusual risks. With certain genetic medicine protocols, FDA review of or clearance to allow the 
IND to proceed could be delayed if the NExTRAC decides that full public review of the protocol is warranted.

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Expanded access to an investigational drug for treatment use 

Expanded access, sometimes called “compassionate use,” is the use of investigational products outside of clinical trials to treat patients with serious or 
immediately life-threatening diseases or conditions when there are no comparable or satisfactory alternative treatment options. FDA regulations allow 
access to investigational products under an IND by the company or the treating physician for treatment purposes on a case-by-case basis for: individual 
patients (single-patient IND applications for treatment in emergency settings and non-emergency settings); intermediate-size patient populations; and larger 
populations for use of the investigational product under a treatment protocol or treatment IND application. 

There is no requirement for a manufacturer to provide expanded access to an investigational product. However, if a manufacturer decides to make its 
investigational product available for expanded access, FDA reviews requests for expanded access and determines if treatment may proceed. Expanded 
access may be appropriate when all of the following criteria apply: patient(s) have a serious or immediately life-threatening disease or condition, and there 
is no comparable or satisfactory alternative therapy to diagnose, monitor, or treat the disease or condition; the potential patient benefit justifies the potential 
risks of the treatment and the potential risks are not unreasonable in the context or condition to be treated; and the expanded use of the investigational drug 
for the requested treatment will not interfere with initiation, conduct, or completion of clinical investigations that could support marketing approval of the 
product or otherwise compromise the potential development of the product. 

Under the FDCA, sponsors of one or more investigational products for the treatment of a serious disease(s) or condition(s) must make publicly available 
their policy for evaluating and responding to requests for expanded access for individual patients. Sponsors are required to make such policies publicly 
available upon the earlier of initiation of a Phase 2 or Phase 3 study; or 15 days after the investigational drug or biologic receives designation as a 
breakthrough therapy, fast track product, or regenerative medicine advanced therapy. 

In addition, on May 30, 2018, the Right to Try Act was signed into law. The law, among other things, provides an additional mechanism for patients with a 
life-threatening condition who have exhausted approved treatments and are unable to participate in clinical trials to access certain investigational products 
that have completed a Phase I clinical trial, are the subject of an active IND, and are undergoing investigation for FDA approval. Unlike the expanded 
access framework described above, the Right to Try Pathway does not require FDA to review or approve requests for use of the investigational product. 
There is no obligation for a manufacturer to make its investigational products available to eligible patients under the Right to Try Act. 

Human clinical trials in support of a BLA 

Clinical trials involve the administration of the investigational product candidate to healthy volunteers or patients with the disease to be treated under the 
supervision of qualified principal investigators, generally physicians not employed by or under the trial sponsor’s control, in accordance with GCP 
requirements, which include the requirement that all research subjects provide their informed consent for their participation. Clinical trials are conducted 
under study protocols detailing, among other things, the objectives of the study, inclusion and exclusion criteria, the parameters to be used in monitoring 
safety, and the effectiveness criteria to be evaluated. A protocol for each clinical trial and any subsequent protocol amendments must be submitted to the 
FDA as part of the IND. 

A sponsor who wishes to conduct a clinical trial outside the United States may, but need not, obtain FDA authorization to conduct the clinical trial under an 
IND. When a foreign clinical trial is conducted under an IND, all FDA IND requirements must be met unless waived. When a foreign clinical trial is not 
conducted under an IND, the sponsor must ensure that the trial complies with certain FDA regulatory requirements in order to use the trial as support for an 
IND or application for marketing approval in the U.S. Specifically, the FDA requires that such trials be conducted in accordance with GCP requirements 
intended to ensure the protection of human subjects and the quality and integrity of the study data, including requirements for review and approval by an 
independent ethics committee and obtaining subjects’ informed consent. 

For clinical trials conducted in the United States, an IND is required, and each clinical trial must be reviewed and approved by an IRB either centrally or 
individually at each institution at which the clinical trial will be conducted. The IRB will consider, among other things, clinical trial design, patient 
informed consent, ethical factors, the safety of human subjects, and the possible liability of the institution. An IRB must operate in compliance with FDA 
regulations. Clinical trials must also comply with extensive GCP rules and the requirements for obtaining subjects’ informed consent. The FDA, IRB, or 
the clinical trial sponsor may suspend or discontinue a clinical trial at any time for various reasons, including a finding that the clinical trial is not being 
conducted in accordance with FDA requirements, including GCP, or the subjects or patients are being exposed to an unacceptable health risk. 

Additionally, some clinical trials are overseen by an independent group of qualified experts organized by the clinical trial sponsor, known as a data safety 
monitoring board or committee. This group may recommend continuation of the study as planned, changes in study conduct, or cessation of the study at 
designated checkpoints based on access to certain data from the study. Finally, research activities involving infectious agents, hazardous chemicals, 
recombinant DNA, and genetically altered organisms and agents may be subject to review and approval of an Institutional Biosafety Committee, or IBC, in 
accordance with NIH Guidelines for Research Involving Recombinant or Synthetic Nucleic Acid Molecules. 

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Clinical trials typically are conducted in three sequential phases, but the phases may overlap or be combined. Additional studies may be required after 
approval. 

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Phase 1 clinical trials are initially conducted in a limited population to test the product candidate for safety, including adverse effects, dose 
tolerance, absorption, metabolism, distribution, excretion, and pharmacodynamics in healthy humans or, on occasion, in the case of some 
products for severe or life-threatening diseases, especially when the product may be too inherently toxic to ethically administer to healthy 
volunteers, in patients, such as cancer patients. 

Phase 2 clinical trials are generally conducted in a limited patient population to identify possible adverse effects and safety risks, evaluate the 
efficacy of the product candidate for specific targeted indications and determine dose tolerance and optimal dosage. Multiple Phase 2 clinical 
trials may be conducted by the sponsor to obtain information prior to beginning larger and more costly Phase 3 clinical trials. 

Phase 3 clinical trials proceed if the Phase 2 clinical trials demonstrate that a dose range of the product candidate is potentially effective and 
has an acceptable safety profile. Clinical trials are undertaken within an expanded patient population at multiple geographically dispersed 
clinical study sites to further evaluate dosage, provide substantial evidence of clinical efficacy, and further test for safety. A well-controlled, 
statistically robust Phase 3 trial may be designed to deliver the data that regulatory authorities will use to decide whether or not to approve, 
and, if approved, how to appropriately label a biologic; such Phase 3 studies are referred to as “pivotal.” 

A clinical trial may combine the elements of more than one phase and the FDA often requires more than one Phase 3 trial to support 
marketing approval of a product candidate. A company’s designation of a clinical trial as being of a particular phase is not necessarily 
indicative that the study will be sufficient to satisfy the FDA requirements of that phase because this determination cannot be made until the 
protocol and data have been submitted to and reviewed by the FDA. Moreover, as noted above, a pivotal trial is a clinical trial that is believed 
to satisfy FDA requirements for the evaluation of a product candidate’s safety and efficacy such that it can be used, alone or with other 
pivotal or non-pivotal trials, to support regulatory approval. Generally, pivotal trials are Phase 3 trials, but they may be Phase 2 trials if the 
design provides a well-controlled and reliable assessment of clinical benefit, particularly in an area of unmet medical need.

In some cases, the FDA may approve a BLA for a product candidate but require the sponsor to conduct additional clinical trials to further assess the 
product candidate’s safety or effectiveness after approval. Such post-approval trials are typically referred to as Phase 4 clinical trials. These studies are used 
to gain additional experience from the treatment of patients in the intended therapeutic indication and to document a clinical benefit in the case of biologics 
approved under accelerated approval regulations. Failure to exhibit due diligence with regard to conducting Phase 4 clinical trials could result in 
withdrawal of approval for products. The FDA generally recommends that sponsors observe subjects for potential gene-therapy related delayed adverse 
events in a long-term follow-up study of fifteen years for integrating vectors, up to fifteen years for herpes virus vectors capable of establishing latency, up 
to fifteen years for microbial vectors known to establish persistent infection, up to fifteen years for gene editing products, and up to five years for AAV 
vectors. FDA recommends that these long-term follow-up studies include, at a minimum, five years of annual physical examinations followed by annual 
queries, either in-person or by phone or written questionnaire, for the remaining observation period.

In December 2022, with the passage of Food and Drug Omnibus Reform Act, or FDORA, Congress required sponsors to develop and submit a diversity 
action plan for each Phase 3 clinical trial or any other “pivotal study” of a new drug or biological product. These plans are meant to encourage the 
enrollment of more diverse patient populations in late-stage clinical trials of FDA-regulated products. Specifically, actions plans must include the sponsor’s 
goals for enrollment, the underlying rationale for those goals, and an explanation of how the sponsor intends to meet them. In addition to these 
requirements, the legislation directs the FDA to issue new guidance on diversity action plans.

Progress reports detailing the results of clinical trials must be submitted at least annually to the FDA and more frequently if serious adverse events occur. In 
addition, IND safety reports must be submitted to the FDA for any of the following: serious and unexpected suspected adverse reactions; findings from 
other studies or animal or in vitro testing that suggest a significant risk in humans exposed to the product; and any clinically important increase in the 
occurrence of a serious suspected adverse reaction over that listed in the protocol or investigator brochure. Phase 1, Phase 2 and Phase 3 clinical trials may 
not be completed successfully within any specified period, or at all. The FDA will typically inspect one or more clinical sites to assure compliance with 
GCP and the integrity of the clinical data submitted.

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In response to the COVID-19 pandemic, the FDA issued guidance on March 18, 2020, and has updated it periodically since that time to address the 
conduct of clinical trials during the pandemic. The guidance sets out a number of considerations for sponsors of clinical trials impacted by the pandemic, 
including the requirement to include in the clinical study report (or as a separate document) contingency measures implemented to manage the study, and 
any disruption of the study as a result of COVID-19; a list of all study participants affected by COVID-19-related study disruptions by a unique subject 
identifier and by investigational site, and a description of how the individual’s participation was altered; and analyses and corresponding discussions that 
address the impact of implemented contingency measures (e.g., participant discontinuation from investigational product and/or study, alternative 
procedures used to collect critical safety and/or efficacy data) on the safety and efficacy results reported for the study, among other things. On January 30, 
2023, the Biden Administration announced that it will end the public health emergency declarations related to COVID-19 on May 11, 2023. On January 31, 
2023, the FDA indicated that it would soon issue a Federal Register notice describing how the termination of the public health emergency will impact the 
agency’s COVID-19 related guidance, including the clinical trial guidance and updates thereto.

During the development of a new product candidate, sponsors are given opportunities to meet with the FDA at certain points; specifically, prior to the 
submission of an IND, at the end of Phase 2 and before an application is submitted. Meetings at other times may be requested. These meetings can provide 
an opportunity for the sponsor to share information about the data gathered to date and for the FDA to provide advice on the next phase of development. 
Sponsors typically use the meeting at the end of Phase 2 to discuss their Phase 2 clinical results and present their plans for the pivotal Phase 3 clinical trial 
that they believe will support the approval of the new product.

Sponsors of clinical trials of certain FDA-regulated products, including prescription drugs, are required to register and disclose certain clinical trial 
information on a public registry maintained by the NIH. In particular, information related to the product, patient population, phase of investigation, study 
sites and investigators and other aspects of the clinical trial is made public as part of the registration of the clinical trial. Although sponsors are also 
obligated to disclose the results of their clinical trials after completion, disclosure of the results can be delayed in some cases for up to two years after the 
date of completion of the trial. Failure to timely register a covered clinical study or to submit study results as provided for in the law can give rise to civil 
monetary penalties and also prevent the non-compliant party from receiving future grant funds from the federal government. The NIH’s Final Rule on 
ClinicalTrials.gov registration and reporting requirements became effective in 2017. Although the FDA has historically not enforced these reporting 
requirements due to the U.S. Department of Health and Human Services’, or HHS’s, long delay in issuing final implementing regulations, the FDA has 
issued several Notices of Noncompliance to manufacturers since April 2021.

Pediatric Studies

Under the Pediatric Research Equity Act of 2003, or PREA, a BLA or supplement thereto must contain data that are adequate to assess the safety and 
effectiveness of the product for the claimed indications in all relevant pediatric subpopulations, and to support dosing and administration for each pediatric 
subpopulation for which the product is safe and effective. Sponsors must submit a pediatric study plan, or PSP, within 60 days of an end-of-Phase 2 
meeting or as may be agreed between the sponsor and the FDA. The PSP outlines the proposed pediatric study or studies they plan to conduct, including 
study objectives and design, any deferral or waiver requests, and other information required by regulation. The FDA must then review the information 
submitted, consult with the sponsor, and agree upon a final plan. The FDA or the sponsor may request an amendment to the plan at any time. 

For investigational products intended to treat a serious or life-threatening disease or condition, the FDA must, upon the request of a sponsor, meet to 
discuss preparation of the initial pediatric study plan or to discuss deferral or waiver of pediatric assessments. In addition, FDA will meet early in the 
development process to discuss pediatric study plans with sponsors and FDA must meet with sponsors by no later than the end-of-phase 1 meeting for 
serious or life-threatening diseases and by no later than 90 days after FDA’s receipt of the study plan. The FDA may, on its own initiative or at the request 
of the sponsor, grant deferrals for submission of some or all pediatric data until after approval of the product for use in adults, or full or partial waivers from 
the pediatric data requirements, under specified circumstances. Unless otherwise required by regulation, the pediatric data requirements do not apply to 
products with orphan designation. 

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The FDA may, on its own initiative or at the request of the sponsor, grant deferrals for submission of some or all pediatric data until after approval of the 
product for use in adults, or full or partial waivers from the pediatric data requirements. A deferral may be granted for several reasons, including a finding 
that the product or therapeutic candidate is ready for approval for use in adults before pediatric trials are complete or that additional safety or effectiveness 
data needs to be collected before the pediatric trials begin. The law now requires the FDA to send a PREA Non-Compliance letter to sponsors who have 
failed to submit their pediatric assessments required under PREA, have failed to seek or obtain a deferral or deferral extension or have failed to request 
approval for a required pediatric formulation. It further requires the FDA to publicly post the PREA Non-Compliance letter and sponsor’s response. Unless 
otherwise required by regulation, the pediatric data requirements do not apply to products with orphan designation, although FDA has recently taken steps 
to limit what it considers abuse of this statutory exemption in PREA by announcing that it does not intend to grant any additional orphan drug designations 
for rare pediatric subpopulations of what is otherwise a common disease. The FDA also maintains a list of diseases that are exempt from PREA 
requirements due to low prevalence of disease in the pediatric population.

Special regulations and guidance governing gene therapy products 

It is possible that the procedures and standards applied to gene therapy products and cell therapy products may be applied to any CRISPR/Cas9 product 
candidates we may develop, but that remains uncertain at this point. The FDA has defined a gene therapy product as one that mediates its effects by 
transcription and/or translation of transferred genetic material and/or by integrating into the host genome and which are administered as nucleic acids, 
viruses, or genetically engineered microorganisms. The products may be used to modify cells in vivo or be transferred to cells ex vivo prior to 
administration to the recipient. The Center for Biologics Evaluation and Research, or CBER, at FDA regulates gene therapy products. Within CBER, the 
review of gene therapy and related products is consolidated in the Office of Tissues and Advanced Therapies, and the FDA has established the Cellular, 
Tissue and Gene Therapies Advisory Committee to advise CBER on its reviews. CBER works closely with the NIH, and the FDA and the NIH have 
published a number of guidance documents with respect to the development of gene therapy products. 

Although the FDA’s guidance documents are not legally binding, we believe that our compliance with certain aspects of them is likely necessary to gain 
approval for any product candidate we may develop. The guidance documents provide recommendations and additional clarity as to factors that the FDA 
will consider at each stage of gene therapy development and relate to, among other things, the proper preclinical assessment of gene therapies; the 
chemistry, manufacturing, and controls, or CMC, information that should be included in an IND application; the proper design of tests to measure product 
potency in support of an IND or BLA application; measures to observe delayed adverse effects in subjects who have been exposed to investigational gene 
therapies; and gene therapy products for the treatment of rare diseases. Further, the FDA usually recommends that sponsors observe subjects for potential 
gene therapy-related delayed adverse events for a 15-year period, including a minimum of five years of annual examinations followed by ten years of 
annual queries, either in person or by questionnaire.

If a gene therapy trial is conducted at, or sponsored by, institutions receiving any NIH funding for research involving recombinant or synthetic nucleic acid 
molecules, the trial must be conducted in accordance with the NIH Guidelines for Research Involving Recombinant DNA Molecules. Research conducted 
at such institutions that involves the transfer of recombinant or synthetic nucleic acid molecules, or DNA or RNA derived from recombinant or synthetic 
nucleic acid molecules, into human subjects must undergo review and approval by an IBC before it commences. Many companies and other institutions not 
otherwise subject to the NIH Guidelines voluntarily follow them. 

Compliance with cGMP and cGTP requirements 

The FDA’s regulations require that pharmaceutical products be manufactured in specific approved facilities and in accordance with cGMPs. The cGMP 
regulations include requirements relating to organization of personnel, buildings and facilities, equipment, control of components and drug product 
containers and closures, production and process controls, packaging and labeling controls, holding and distribution, laboratory controls, records and reports 
and returned or salvaged products. Manufacturers and other entities involved in the manufacture and distribution of approved pharmaceuticals are required 
to register their establishments with the FDA and some state agencies and are subject to periodic unannounced inspections by the FDA for compliance with 
cGMPs and other requirements. Inspections must follow a “risk-based schedule” that may result in certain establishments being inspected more frequently. 

Manufacturers may also have to provide, on request, electronic or physical records regarding their establishments. Delaying, denying, limiting, or refusing 
inspection by the FDA may lead to a product being deemed to be adulterated. Changes to the manufacturing process, specifications or container closure 
system for an approved product are strictly regulated and often require prior FDA approval before being implemented. FDA regulations also require, 
among other things, the investigation and correction of any deviations from cGMP and the imposition of reporting and documentation requirements upon 
the NDA sponsor and any third-party manufacturers involved in producing the approved product.

Before approving a BLA, the FDA typically will inspect the facility or facilities where the product is manufactured. The FDA will not approve an 
application unless it determines that the manufacturing processes and facilities are in full compliance with cGMP requirements and adequate to assure 
consistent production of the product within required specifications. The PHSA emphasizes the importance of manufacturing control for products like 
biologics whose attributes cannot be precisely defined. Material changes in manufacturing equipment, location, or process post-approval, may result in 
additional regulatory review and approval. The PREVENT Pandemics Act, which was enacted in December 2022, clarifies that foreign drug manufacturing 
establishments are subject to registration and listing requirements even if a drug or biologic undergoes further manufacture, preparation, propagation, 

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compounding, or processing at a separate establishment outside the United States prior to being imported or offered for import into the United States.

For a gene therapy product, the FDA also will not approve the product if the manufacturer is not in compliance with cGTP. These standards are found in 
FDA regulations and guidance documents that govern the methods used in, and the facilities and controls used for, the manufacture of human cells, tissues, 
and cellular and tissue based products, or HCT/Ps, which are human cells or tissue intended for implantation, transplant, infusion, or transfer into a human 
recipient. The primary intent of the GTP requirements is to ensure that cell and tissue-based products are manufactured in a manner designed to prevent the 
introduction, transmission, and spread of communicable disease. FDA regulations also require tissue establishments to register and list their HCT/Ps with 
the FDA and, when applicable, to evaluate donors through screening and testing. 

Manufacturers and others involved in the manufacture and distribution of products must also register their establishments with the FDA and certain state 
agencies. Both domestic and foreign manufacturing establishments must register and provide additional information to the FDA upon their initial 
participation in the manufacturing process. Any product manufactured by or imported from a facility that has not registered, whether foreign or domestic, is 
deemed misbranded under the FDCA. The manufacturing facilities may be subject to periodic unannounced inspections by government authorities to 
ensure compliance with cGMPs and other laws. If a manufacturing facility is not in substantial compliance with the applicable regulations and requirements 
imposed when the product was approved, regulatory enforcement action may be taken, which may include a warning letter or an injunction against 
shipment of products from the facility and/or recall of products previously shipped. 

Review and approval of a BLA 

Assuming successful completion of the required clinical testing, the results of the preclinical studies and clinical trials, along with information relating to 
the product’s chemistry, manufacturing, controls and proposed labeling, are submitted to the FDA as part of an application requesting approval to market 
the product candidate for one or more indications. Data may come from company-sponsored clinical trials intended to test the safety and efficacy of a 
product’s use or from a number of alternative sources, including studies initiated by investigators. To support marketing approval, the data submitted must 
be sufficient in quality and quantity to establish the safety, potency and purity of the investigational product to the satisfaction of the FDA. The fee required 
for the submission of a BLA under the Prescription Drug User Fee Act, or PDUFA, is substantial (for example, for fiscal year 2023, this application fee is 
approximately $3.25 million), and the sponsor of an approved NDA is also subject to an annual program fee, currently more than $394,000 per eligible 
prescription drug product. These fees are typically adjusted annually, and exemptions and waivers may be available under certain circumstances, such as 
where a waiver is necessary to protect the public health, where the fee would present a significant barrier to innovation, or where the sponsor is a small 
business submitting its first human therapeutic application for review.

The FDA conducts a preliminary review of the BLA within 60 days of receipt and must inform the sponsor by that time whether the application is 
sufficiently complete to permit substantive review. In pertinent part, the FDA’s regulations for applications state that an application “shall not be considered 
as filed until all pertinent information and data have been received” by the FDA. In the event that the FDA determines that an application does not satisfy 
this standard, it will issue a Refuse to File, or RTF, determination to the sponsor. Typically, an RTF will be based on administrative incompleteness, such as 
clear omission of information or sections of required information; scientific incompleteness, such as omission of critical data, information or analyses 
needed to evaluate safety, purity and potency or provide adequate directions for use; or inadequate content, presentation, or organization of information 
such that substantive and meaningful review is precluded. The FDA may request additional information rather than accept a BLA for filing. In this event, 
the application must be resubmitted with the additional information. The resubmitted application is also subject to review before the FDA accepts it for 
filing.

After the submission is accepted for filing, the FDA begins an in-depth substantive review of the application. The FDA may inform the sponsor of certain 
requirements for information when it accepts the BLA or by the 74th day of the receipt of the BLA. Thereafter, the FDA may submit “information requests” 
to the sponsor in the course of the agency’s review of the BLA. The FDA reviews the BLA to determine, among other things, whether the proposed product 
is safe and effective for its intended use, whether it has an acceptable purity profile and whether the product is being manufactured in accordance with 
cGMP. Under the goals and policies agreed to by the FDA under PDUFA, the FDA has ten months from the filing date in which to complete its initial 
review of a standard application for an investigational product that is a new molecular entity, and six months from the filing date for an application with 
“priority review.” The review process may be extended by the FDA for three additional months to consider new information or in the case of a clarification 
provided by the sponsor to address an outstanding deficiency identified by the FDA following the original submission. Despite these review goals, it is not 
uncommon for FDA review of a BLA to extend beyond the PDUFA goal date.

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Before approving a BLA, the FDA may inspect the sponsor and one or more clinical trial sites to assure compliance with IND and GCP requirements and 
the integrity of the clinical data submitted to the FDA. With passage of FDORA, Congress clarified the FDA’s authority to conduct inspections by expressly 
permitting inspection of facilities involved in the preparation, conduct, or analysis of clinical and non-clinical studies submitted to FDA as well as other 
persons holding study records or involved in the study process. Additionally, the FDA may refer the BLA, including applications for novel product 
candidates which present difficult questions of safety or efficacy, to an advisory committee for review, evaluation and recommendation as to whether the 
application should be approved and under what conditions. Typically, an advisory committee is a panel of independent experts, including clinicians and 
other scientific experts that reviews, evaluates and provides a recommendation as to whether the application should be approved and under what conditions. 
The FDA is not bound by the recommendation of an advisory committee, but it considers such recommendations when making final decisions on approval. 
Data from clinical trials are not always conclusive, and the FDA or its advisory committee may interpret data differently than the NDA sponsor interprets 
the same data. The FDA may also re-analyze the clinical trial data, which could result in extensive discussions between the FDA and the sponsor during the 
review process.

The FDA reviews a BLA to determine, among other things, whether the product is safe and whether it is effective for its intended use(s), with the latter 
determination being made on the basis of substantial evidence. The term “substantial evidence” is defined under the FDCA as “evidence consisting of 
adequate and well-controlled investigations, including clinical investigations, by experts qualified by scientific training and experience to evaluate the 
effectiveness of the drug involved, on the basis of which it could fairly and responsibly be concluded by such experts that the drug will have the effect it 
purports or is represented to have under the conditions of use prescribed, recommended, or suggested in the labeling or proposed labeling thereof.”

The FDA has interpreted this evidentiary standard to require at least two adequate and well-controlled clinical investigations to establish effectiveness of a 
product. Under certain circumstances, however, the FDA has indicated that a single trial with certain characteristics and additional information may satisfy 
this standard. This approach was subsequently endorsed by Congress in 1998 with legislation providing, in pertinent part, that “If [the FDA] determines, 
based on relevant science, that data from one adequate and well-controlled clinical investigation and confirmatory evidence (obtained prior to or after such 
investigation) are sufficient to establish effectiveness, FDA may consider such data and evidence to constitute substantial evidence.” This modification to 
the law recognized the potential for the FDA to find that one adequate and well controlled clinical investigation with confirmatory evidence, including 
supportive data outside of a controlled trial, is sufficient to establish effectiveness. In December 2019, the FDA issued draft guidance further explaining the 
studies that are needed to establish substantial evidence of effectiveness. It has not yet finalized that guidance. 

In addition, before approving an application, the FDA will determine whether the facility in which the product is manufactured, processed, packed or held 
meets standards designed to assure the product’s continued safety. The approval process is lengthy and often difficult, and the FDA may refuse to approve a 
BLA if the applicable regulatory criteria are not satisfied or may require additional clinical or other data and information. After evaluating the application 
and all related information, including the advisory committee recommendations, if any, and inspection reports of manufacturing facilities and clinical trial 
sites, the FDA may issue either an approval letter or a Complete Response Letter, or CRL. 

An approval letter authorizes commercial marketing of the product with specific prescribing information for specific indications. A CRL indicates that the 
review cycle of the application is complete, and the application will not be approved in its present form. A CRL generally outlines the deficiencies in the 
submission and may require substantial additional testing or information in order for the FDA to reconsider the application. The CRL may require 
additional clinical or other data, additional pivotal Phase 3 clinical trial(s) and/or other significant and time-consuming requirements related to clinical 
trials, preclinical studies or manufacturing. If a CRL is issued, the sponsor may either resubmit the NDA addressing all of the deficiencies identified in the 
letter or withdraw the application. If and when those deficiencies have been addressed to the FDA’s satisfaction in a resubmission of the BLA, the FDA will 
issue an approval letter. The FDA has committed to reviewing such resubmissions in response to an issued CRL in either two or six months depending on 
the type of information included. Even with the submission of this additional information, however, the FDA ultimately may decide that the application 
does not satisfy the regulatory criteria for approval.

If the FDA approves a new product, it may limit the approved indications for use of the product. It may also require that contraindications, warnings or 
precautions be included in the product labeling. In addition, the FDA may require post-approval studies, including Phase 4 clinical trials, to further assess 
the product’s safety or efficacy after approval. The agency may also require testing and surveillance programs to monitor the product after 
commercialization, or impose other conditions, including distribution restrictions or other risk management mechanisms, including REMS, to help ensure 
that the benefits of the product outweigh the potential risks. REMS can include medication guides, communication plans for healthcare professionals, and 
elements to assure safe use, or ETASU. ETASU can include, but are not limited to, special training or certification for prescribing or dispensing, dispensing 
only under certain circumstances, special monitoring, and the use of patent registries. The FDA may prevent or limit further marketing of a product based 
on the results of post-market studies or surveillance programs. After approval, many types of changes to the approved product, such as adding new 
indications, manufacturing changes and additional labeling claims, are subject to further testing requirements and FDA review and approval. 

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Fast track, breakthrough therapy, priority review and regenerative advanced therapy designations 

The FDA has several programs designed to expedite the development and approval of drugs and biological products intended to treat serious or life-
threatening diseases or conditions. These programs include fast track designation, breakthrough therapy designation, priority review designation, and 
regenerative medicine advanced therapy (RMAT) designation. These designations are not mutually exclusive, and a product candidate may qualify for one 
or more of these programs. While these programs are intended to expedite product development and approval, they do not alter the standards for FDA 
approval. 

The FDA may grant a product fast track designation if it is intended for the treatment of a serious or life-threatening disease or condition, and nonclinical or 
clinical data demonstrate the potential to address an unmet medical need for such disease or condition. For fast track products, sponsors may have greater 
interactions with the FDA, and the FDA may initiate review of sections of a fast track product’s marketing application before the application is complete in 
some circumstances. Fast track designation may be rescinded if FDA believes that the product no longer meets the qualifying criteria. 

A product may be designated as a breakthrough therapy if it is intended to treat a serious or life-threatening disease or condition and preliminary clinical 
evidence indicates that the product may demonstrate substantial improvement over existing therapies on one or more clinically significant endpoints. The 
FDA may take certain actions with respect to breakthrough therapies, including holding meetings with the sponsor throughout the development process; 
providing timely advice to the product sponsor regarding development and approval; involving more senior staff in the review process; assigning a cross-
disciplinary project lead for the review team; and taking other steps to aid sponsors in designing the clinical trials in an efficient manner. Breakthrough 
designation may be rescinded if a product no longer meets the qualifying criteria. 

With passage of the 21st Century Cures Act in December 2016, Congress authorized an additional expedited program for regenerative medicine advanced 
therapies. A product is eligible for RMAT designation if it is a regenerative medicine therapy that is intended to treat, modify, reverse or cure a serious or 
life-threatening disease or condition, and preliminary clinical evidence indicates that the product has the potential to address unmet medical needs for such 
disease or condition. The benefits of RMAT designation include the benefits available to breakthrough therapies, including potential eligibility for priority 
review and accelerated approval based on surrogate or intermediate endpoints. RMAT designation may be rescinded if a product no longer meets the 
qualifying criteria. 

FDA may designate a product for priority review if it is a product that treats a serious condition and, if approved, would provide a significant improvement 
in safety or effectiveness of the treatment, prevention, or diagnosis of such condition. A priority designation is intended to direct overall attention and 
resources to the evaluation of such applications, and it shortens the FDA’s goal for taking action on a marketing application from ten months to six months. 

Accelerated approval pathway 

The FDA may grant accelerated approval to a product for a serious or life-threatening condition that provides meaningful therapeutic advantage to patients 
over existing treatments based upon a determination that the product has an effect on a surrogate endpoint that is reasonably likely to predict clinical 
benefit. The FDA may also grant accelerated approval for such a condition when the product has an effect on an intermediate clinical endpoint that can be 
measured earlier than an effect on irreversible morbidity or mortality, or IMM, and that is reasonably likely to predict an effect on IMM or other clinical 
benefit, taking into account the severity, rarity, or prevalence of the condition and the availability or lack of alternative treatments. 

The accelerated approval pathway is most often used in settings in which the course of a disease is long, and an extended period of time is required to 
measure the intended clinical benefit of a product, even if the effect on the surrogate or intermediate clinical endpoint occurs rapidly. Thus, accelerated 
approval has been used extensively in the development and approval of products for treatment of a variety of cancers in which the goal of therapy is 
generally to improve survival or decrease morbidity and the duration of the typical disease course requires lengthy and sometimes large trials to 
demonstrate a clinical or survival benefit. 

For drugs granted accelerated approval, FDA generally requires sponsors to conduct, in a diligent manner, additional post-approval confirmatory studies to 
verify and describe the product’s clinical benefit. Failure to conduct required post-approval studies with due diligence, failure to confirm a clinical benefit 
during the post-approval studies, or dissemination of false or misleading promotional materials would allow the FDA to withdraw the product approval on 
an expedited basis. All promotional materials for product candidates approved under accelerated approval are subject to prior review by the FDA unless 
FDA informs the sponsor otherwise. 

With passage of the FDORA in December 2022, Congress modified certain provisions governing accelerated approval of drug and biologic products. 
Specifically, the new legislation authorized the FDA to require (i) a sponsor to have its confirmatory clinical trial underway before accelerated approval is 
awarded; (ii) a sponsor of a product granted accelerated approval to submit progress reports on its post-approval studies to FDA every six months (until the 
study is completed); and (iii) use expedited procedures to withdraw accelerated approval of an NDA or BLA after the confirmatory trial fails to verify the 
product’s clinical benefit. Further, FDORA requires the agency to publish on its website “the rationale for why a post-approval study is not appropriate or 
necessary” whenever it decides not to require such a study upon granting accelerated approval.

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Post-approval regulation 

If regulatory approval for marketing of a product or new indication for an existing product is obtained, the sponsor will be required to comply with all 
regular post-approval regulatory requirements as well as any post-approval requirements that the FDA has imposed as part of the approval process. The 
sponsor will be required to report certain adverse reactions and production problems to the FDA, provide updated safety and efficacy information and 
comply with requirements concerning advertising and promotional labeling requirements. Manufacturers and certain of their subcontractors are required to 
register their establishments with the FDA and certain state agencies and are subject to periodic unannounced inspections by the FDA and certain state 
agencies for compliance with ongoing regulatory requirements, including cGMP regulations, which impose certain procedural and documentation 
requirements upon manufacturers. Accordingly, the sponsor and its third-party manufacturers must continue to expend time, money and effort in the areas 
of production and quality control to maintain compliance with cGMP regulations and other regulatory requirements.

A product may also be subject to official lot release, meaning that the manufacturer is required to perform certain tests on each lot of the product before it is 
released for distribution. If the product is subject to official lot release, the manufacturer must submit samples of each lot, together with a release protocol 
showing a summary of the history of manufacture of the lot and the results of all of the manufacturer’s tests performed on the lot, to the FDA. The FDA 
may in addition perform certain confirmatory tests on lots of some products before releasing the lots for distribution. Finally, the FDA will conduct 
laboratory research related to the safety, purity, potency and effectiveness of pharmaceutical products.

Once an approval is granted, the FDA may withdraw the approval if compliance with regulatory requirements and standards is not maintained or if 
problems occur after the product reaches the market. Later discovery of previously unknown problems with a product, including adverse events of 
unanticipated severity or frequency, or with manufacturing processes, or failure to comply with regulatory requirements, may result in revisions to the 
approved labeling to add new safety information; imposition of post-market studies or clinical trials to assess new safety risks; or imposition of distribution 
or other restrictions under a REMS program. Other potential consequences include, among other things:

•

•

•

•

•

•

•

•

restrictions on the marketing or manufacturing of the product, complete withdrawal of the product from the market or product recalls;

safety alerts, Dear Healthcare Provider letters, press releases or other communications containing warnings or other safety information about 
a product;

mandated modification of promotional materials and labeling and issuance of corrective information;

fines, warning letters or holds on post-approval clinical trials;

refusal of the FDA to approve pending applications or supplements to approved applications, or suspension or revocation of product license 
approvals;

product recall, seizure or detention, or refusal to permit the import or export of products;

injunctions or the imposition of civil or criminal penalties; and 

consent decrees, corporate integrity agreements, debarment, or exclusion from federal health care programs.

The FDA strictly regulates the advertising and labeling of prescription drug products, including biological products. This regulation includes, among other 
things, standards and regulations for direct-to-consumer advertising, communications regarding unapproved uses, industry-sponsored scientific and 
educational activities and promotional activities involving the Internet and social media. Promotional claims about a drug’s safety or effectiveness are 
prohibited before the drug is approved. In addition, the sponsor of an approved drug in the United States may not promote that drug for unapproved, or off-
label, uses, although a physician may prescribe a drug for an off-label use in accordance with the practice of medicine. It may be permissible, under very 
specific, narrow conditions, for a manufacturer to engage in nonpromotional, non-misleading communication regarding off-label information, such as 
distributing scientific or medical journal information. Moreover, with passage of the Pre-Approval Information Exchange Act, or PIE Act, in December 
2022, sponsors of products that have not been approved may proactively communicate to payors certain information about products in development to help 
expedite patient access upon product approval. Previously, such communications were permitted under FDA guidance but the new legislation explicitly 
provides protection to sponsors who convey certain information about products in development to payors, including unapproved uses of approved products.

If a company is found to have promoted off-label uses, it may become subject to administrative and judicial enforcement by the FDA, the DOJ, or the 
Office of the Inspector General of HHS, as well as state authorities. This could subject a company to a range of penalties that could have a significant 
commercial impact, including civil and criminal fines and agreements that materially restrict the manner in which a company promotes or distributes drug 
products. The federal government has levied large civil and criminal fines against companies for alleged improper promotion and has also requested that 
companies enter into consent decrees or permanent injunctions under which specified promotional conduct is changed or curtailed. 

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After approval, some types of changes to the approved product, such as adding new indications or dosing regimens, manufacturing changes, or additional 
labeling claims, are subject to further FDA review and approval. In addition, the FDA may require testing and surveillance programs to monitor the effect 
of approved products that have been commercialized, and the FDA has the power to prevent or limit further marketing of a product based on the results of 
these post-marketing programs. 

The FDA may withdraw product approval if compliance with regulatory requirements and standards is not maintained or if problems occur after the 
product reaches the market. Later discovery of previously unknown problems with a product, including adverse events of unanticipated severity or 
frequency or issues with manufacturing processes, may result in revisions to the approved labeling to add new safety information; imposition of post-
market studies or clinical trials to assess new safety signals; or imposition of distribution or other restrictions under a REMS program. Other potential 
consequences include, among other things: 

•

•

•

•

•

restrictions on the marketing or manufacturing of the product; 

fines, warning letters or holds on post-approval clinical trials; 

refusal of the FDA to approve pending applications or supplements to approved applications, or suspension or revocation of product license 
approvals; 

product recall, seizure, or detention, or refusal to permit the import or export of products; or 

injunctions or the imposition of civil or criminal penalties. 

Finally, if there are any modifications to the product, including changes in indications, labeling or manufacturing processes or facilities, the sponsor may be 
required to submit and obtain FDA approval of a new BLA or a BLA supplement, which may require the sponsor to develop additional data or conduct 
additional preclinical studies and clinical trials. Securing FDA approval for new indications is similar to the process for approval of the original indication 
and requires, among other things, submitting data from adequate and well-controlled clinical trials to demonstrate the product’s safety and efficacy in the 
new indication. Even if such trials are conducted, the FDA may not approve any expansion of the labeled indications for use in a timely fashion, or at all. 
There also are continuing, annual user fee requirements that are now assessed as program fees for certain approved drugs.

Orphan drug designation and exclusivity

Orphan drug designation in the United States is designed to encourage sponsors to develop products intended for the treatment of rare diseases or 
conditions. In the United States, a rare disease or condition is statutorily defined as a condition that affects fewer than 200,000 individuals in the United 
States or that affects more than 200,000 individuals in the United States and for which there is no reasonable expectation that the cost of developing and 
making the product available for the disease or condition will be recovered from sales of the product in the United States. 

Orphan drug designation qualifies a company for certain tax credits. In addition, if a drug candidate that has orphan drug designation subsequently receives 
the first FDA approval for that drug for the disease for which it has such designation, the product is entitled to orphan drug exclusivity, which means that 
the FDA may not approve any other applications to market the same drug for the same indication for seven years following product approval unless the 
subsequent product candidate is demonstrated to be clinically superior. Absent a showing of clinical superiority, FDA cannot approve the same product 
made by another manufacturer for the same indication during the market exclusivity period unless it has the consent of the sponsor or the sponsor is unable 
to provide sufficient quantities. 

A sponsor may request orphan drug designation of a previously unapproved product or new orphan indication for an already marketed product. In addition, 
a sponsor of a product that is otherwise the same product as an already approved orphan drug may seek and obtain orphan drug designation for the 
subsequent product for the same rare disease or condition if it can present a plausible hypothesis that its product may be clinically superior to the first drug. 
More than one sponsor may receive orphan drug designation for the same product for the same rare disease or condition, but each sponsor seeking orphan 
drug designation must file a complete request for designation. To qualify for orphan exclusivity, however, the drug must be clinically superior to the 
previously approved product that is the same drug for the same condition. 

Gene therapy products present novel issues for assessing when two products are the “same” for orphan exclusivity purposes. In September 2021, the FDA 
issued a final guidance document describing its current thinking on when a gene therapy product is the “same” as another product for the purpose of orphan 
exclusivity. Under the guidance, if either the transgene or vector differs between two gene therapy products in a manner that does not reflect “minor” 
differences, the two products would be considered different drugs for orphan drug exclusivity purposes. FDA will determine whether two vectors from the 
same viral class are the same on a case-by-case basis and may consider additional key features in assessing sameness. While the guidance provides some 
additional clarity on FDA’s approach to assessing “sameness,” significant ambiguity and uncertainty remain as to how FDA will assess viral vectors in the 
same class, what differences in vector or transgene are considered minor, and what additional features may be considered.

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The period of exclusivity begins on the date that the marketing application is approved by the FDA and applies only to the indication for which the product 
has been designated. The FDA may approve a second application for the same product for a different use or a second application for a clinically superior 
version of the product for the same use. Orphan drug exclusivity will not bar approval of another product under certain circumstances, including if the 
company with orphan drug exclusivity is not able to meet market demand or the subsequent product with the same drug for the same condition is shown to 
be clinically superior to the approved product on the basis of greater efficacy or safety, or provide a major contribution to patient care. This is the case 
despite an earlier court opinion holding that the Orphan Drug Act unambiguously required the FDA to recognize orphan drug exclusivity regardless of a 
showing of clinical superiority. Under Omnibus legislation signed in December 2020, the requirement for a product to show clinical superiority applies to 
drugs and biologics that received orphan drug designation before enactment of the FDA Reauthorization Act of 2017, or FDARA, in 2017, but have not yet 
been approved or licensed by the FDA.

In September 2021, the Court of Appeals for the 11th Circuit held that, for the purpose of determining the scope of exclusivity, the term “same disease or 
condition” in the statute means the designated “rare disease or condition” and could not be interpreted by the agency to mean the “indication or use.” Thus, 
the court concluded, orphan drug exclusivity applies to the entire designated disease or condition rather than the “indication or use.” It is unclear how this 
court decision will be implemented by the FDA. Although there have been legislative proposals to overrule this decision, they have not been enacted into 
law. On January 23, 2023, the FDA announced that, in matters beyond the scope of that court order, the FDA will continue to apply its existing regulations 
tying orphan-drug exclusivity to the uses or indications for which the orphan drug was approved.

Pediatric exclusivity 

Pediatric exclusivity is another type of non-patent regulatory exclusivity in the United States. Specifically, the Best Pharmaceuticals for Children Act 
provides for the attachment of an additional six months of exclusivity, which is added on to the term of any remaining regulatory exclusivity at the time the 
pediatric exclusivity is granted. This six-month exclusivity may be granted if a BLA sponsor submits pediatric data that fairly respond to a written request 
from the FDA for such data, even if the data do not show the product to be effective in the pediatric population studied. 

Biosimilars and exclusivity 

The 2010 Patient Protection and Affordable Care Act, or PPACA, which was signed into law in March 2010, included a subtitle called the Biologics Price 
Competition and Innovation Act of 2009, or BPCIA. The BPCIA established a regulatory scheme authorizing the FDA to approve biosimilars and 
interchangeable biosimilars. 

Under the BPCIA, a manufacturer may submit an application for licensure of a biological product that is “biosimilar to” or “interchangeable with” a 
previously approved biological product or “reference product.” In order for the FDA to approve a biosimilar product, it must find that there are no clinically 
meaningful differences between the reference product and proposed biosimilar product in terms of safety, purity, and potency. For the FDA to approve a 
biosimilar product as interchangeable with a reference product, the agency must find that the biosimilar product can be expected to produce the same 
clinical results as the reference product, and (for products administered multiple times) that the biologic and the reference biologic may be switched after 
one has been previously administered without increasing safety risks or risks of diminished efficacy relative to exclusive use of the reference biologic. 

Under the BPCIA, an application for a biosimilar product may not be submitted to the FDA until four years following the date of approval of the reference 
product. The FDA may not approve a biosimilar product until 12 years from the date on which the reference product was first licensed. This 12-year 
exclusivity period is referred to as the reference product exclusivity period and bars approval of a biosimilar but notably does not prevent approval of a 
competing product pursuant to a full BLA (i.e., containing the sponsor’s own preclinical data and data from adequate and well-controlled clinical trials to 
demonstrate the safety, purity, and potency of the product). The BPCIA also created certain exclusivity periods for biosimilars approved as interchangeable 
products. In December 2022, Congress clarified through FDORA that the FDA may approve multiple first interchangeable biosimilar biological products 
so long as the products are all approved on the first day on which such a product is approved as interchangeable with the reference product. The law also 
includes an extensive process for the innovator biologic and biosimilar manufacturer to litigate patent infringement, validity, and enforceability prior to the 
approval of the biosimilar. 

Since the passage of the BPCIA, many states have passed laws or amendments to laws, including laws governing pharmacy practices, which are state-
regulated, to regulate the use of biosimilars.

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Patent term restoration and extension 

A patent claiming a new biological product may be eligible for a limited patent term extension under the Hatch-Waxman Act, which permits a patent 
restoration of up to five years for a single patent for an approved product as compensation for patent term lost during product development and FDA 
regulatory review. The restoration period granted on a patent covering a product is typically one-half the time between the effective date a clinical 
investigation involving human beings is begun and the submission date of a marketing application less any dime during which the sponsor failed to 
exercise due diligence, plus the time between the submission date of an application and the ultimate approval date less any dime during which the sponsor 
failed to exercise due diligence. Patent term restoration cannot be used to extend the remaining term of a patent past a total of 14 years from the product’s 
approval date. Only one patent applicable to an approved product is eligible for the extension, only those claims covering the approved drug, a method for 
using it, or a method for manufacturing it may be extended and the application for the extension must be submitted prior to the expiration of the patent in 
question. A patent that covers multiple products for which approval is sought can only be extended in connection with one of the approvals. The USPTO 
reviews and approves the application for any patent term extension or restoration in consultation with the FDA. 

FDA approval of companion diagnostics 

In August 2014, the FDA issued final guidance clarifying the requirements that will apply to approval of therapeutic products and in vitro companion 
diagnostics. According to the guidance, for novel drugs, a companion diagnostic device and its corresponding therapeutic should be approved or cleared 
contemporaneously by the FDA for the use indicated in the therapeutic product’s labeling. Approval or clearance of the companion diagnostic device will 
ensure that the device has been adequately evaluated and has adequate performance characteristics in the intended population. In July 2016, the FDA issued 
a draft guidance intended to assist sponsors of the drug therapeutic and in vitro companion diagnostic device on issues related to co-development of the 
products. 

Further, in April 2020, the FDA issued additional guidance which describes considerations for the development and labeling of companion diagnostic 
devices to support the indicated uses of multiple drug or biological oncology products, when appropriate. This guidance builds upon existing policy 
regarding the labeling of companion diagnostics. In its 2014 guidance, the FDA stated that if evidence is sufficient to conclude that the companion 
diagnostic is appropriate for use with a specific group of therapeutic products, the companion diagnostic’s intended use/indications for use should name the 
specific group of therapeutic products, rather than specific products. The 2020 guidance expands on the policy statement in the 2014 guidance by 
recommending that companion diagnostic developers consider a number of factors when determining whether their test could be developed, or the labeling 
for approved companion diagnostics could be revised through a supplement, to support a broader labeling claim such as use with a specific group of 
oncology therapeutic products (rather than listing an individual therapeutic product(s)).

Under the FDCA, in vitro diagnostics, including companion diagnostics, are regulated as medical devices. In the United States, the FDCA and its 
implementing regulations, and other federal and state statutes and regulations govern, among other things, medical device design and development, 
preclinical and clinical testing, premarket clearance or approval, registration and listing, manufacturing, labeling, storage, advertising and promotion, sales 
and distribution, export and import, and post-market surveillance. Unless an exemption applies, diagnostic tests require marketing clearance or approval 
from the FDA prior to commercial distribution. 

The FDA previously has required in vitro companion diagnostics intended to select the patients who will respond to the product candidate to obtain pre-
market approval, or PMA, simultaneously with approval of the therapeutic product candidate. The PMA process, including the gathering of clinical and 
preclinical data and the submission to and review by the FDA, can take several years or longer. It involves a rigorous premarket review during which the 
sponsor must prepare and provide the FDA with reasonable assurance of the device’s safety and effectiveness and information about the device and its 
components regarding, among other things, device design, manufacturing and labeling. PMA applications are subject to an application fee, which exceeds 
$250,000 for most PMAs; for federal fiscal year 2023, the standard fee for review of a PMA is $ 441,547 and the small business fee is $110,387.

A clinical trial is typically required for a PMA application and, in a small percentage of cases, the FDA may require a clinical study in support of a 510(k) 
submission. A manufacturer that wishes to conduct a clinical study involving the device is subject to the FDA’s IDE regulation. The IDE regulation 
distinguishes between significant and non-significant risk device studies and the procedures for obtaining approval to begin the study differ accordingly. 
Also, some types of studies are exempt from the IDE regulations. A significant risk device presents a potential for serious risk to the health, safety, or 
welfare of a subject. Significant risk devices are devices that are substantially important in diagnosing, curing, mitigating, or treating disease or in 
preventing impairment to human health. Studies of devices that pose a significant risk require both FDA and an IRB approval prior to initiation of a clinical 
study. Many companion diagnostics are considered significant risk devices due to their role in diagnosing a disease or condition. Non-significant risk 
devices are devices that do not pose a significant risk to the human subjects. A non-significant risk device study requires only IRB approval prior to 
initiation of a clinical study. 

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After a device is placed on the market, it remains subject to significant regulatory requirements. Medical devices may be marketed only for the uses and 
indications for which they are cleared or approved. Device manufacturers must also establish registration and device listings with the FDA. A medical 
device manufacturer’s manufacturing processes and those of its suppliers are required to comply with the applicable portions of the Quality System 
Regulation, which covers the methods and documentation of the design, testing, production, processes, controls, quality assurance, labeling, packaging and 
shipping of medical devices. Domestic facility records and manufacturing processes are subject to periodic unscheduled inspections by the FDA. The FDA 
also may inspect foreign facilities that export products to the United States. 

Federal and state data privacy and security laws

There are multiple privacy and data security laws that may impact our business activities in the United States and in other countries where we conduct trials 
or where we may do business in the future. These laws are evolving and may increase both our obligations and our regulatory risks in the future. In the 
health care industry generally, under the federal Health Insurance Portability and Accountability Act of 1996, or HIPAA, HHS has issued regulations to 
protect the privacy and security of protected health information, or PHI, used or disclosed by covered entities including certain healthcare providers, health 
plans and healthcare clearinghouses. HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act of 2009, or 
HITECH, and their regulations, including the omnibus final rule published on January 25, 2013, also imposes certain obligations on the business associates 
of covered entities that obtain protected health information in providing services to or on behalf of covered entities. HIPAA may apply to us in certain 
circumstances and may also apply to our business partners in ways that may impact our relationships with them. Any clinical trials we conduct will be 
regulated by Subpart A of 45 CFR 46, also known as the Common Rule, which also includes specific privacy-related provisions. In addition to federal 
privacy regulations, there are a number of state laws governing confidentiality and security of health information that may be applicable to our business. In 
addition to possible federal civil and criminal penalties for HIPAA violations, state attorneys general are authorized to file civil actions for damages or 
injunctions in federal courts to enforce HIPAA and seek attorney’s fees and costs associated with pursuing federal civil actions. In addition, state attorneys 
general (along with private plaintiffs) have brought civil actions seeking injunctions and damages resulting from alleged violations of HIPAA’s privacy and 
security rules. State attorneys general also have authority to enforce state privacy and security laws. Moreover, new laws and regulations governing privacy 
and security may be adopted in the future as well.

At the state level, in 2018, California passed into law the California Consumer Privacy Act, or the CCPA, which took effect on January 1, 2020 and 
imposed many requirements on businesses that process the personal information of California residents, including requiring businesses to provide notice to 
data subjects regarding the information collected about them and how such information is used and shared, and providing data subjects the right to request 
access to such personal information and, in certain cases, request the erasure of such personal information. The CCPA also affords California residents the 
right to opt-out of “sales” of their personal information. The CCPA contains significant penalties for companies that violate its requirements. It also 
provides California residents a private right of action, including the ability to seek statutory damages, in the event of a breach involving their personal 
information. Compliance with the CCPA is a rigorous and time-intensive process that may increase the cost of doing business or require companies to 
change their business practices to ensure full compliance. On November 3, 2020, California voters passed a ballot initiative for the California Privacy 
Rights Act, or the CPRA, which will expand the CCPA to incorporate additional provisions, including requiring that the use, retention, and sharing of 
personal information of California residents be reasonably necessary and proportionate to the purposes of collection or processing, granting additional 
protections for sensitive personal information, and requiring greater disclosures related to notice to residents regarding retention of information. The CPRA 
will also expand personal information rights of California residents, including creating a right to opt out of sharing of personal information with third 
parties for advertising, expanding the lookback period for the right to know about personal information held by businesses, and expanding the right to 
erasure for information held by third parties. Most CPRA provisions took effect on January 1, 2023, though the obligations apply to any personal 
information collected after January 1, 2022. These provisions may apply to some of our business activities. In addition, other states, including Virginia and 
Colorado, already have passed state privacy laws. Other states will be considering these laws in the future. These laws may impact our business activities, 
including our identification of research subjects, relationships with business partners and ultimately the marketing and distribution of any products for 
which we or our collaborators obtain regulatory and marketing approval. 

42

 
 
Regulation and procedures governing approval of medicinal products in the EU and the U.K.

In order to market any product outside of the United States, a company must also comply with numerous and varying regulatory requirements of other 
countries and jurisdictions regarding quality, safety and efficacy and governing, among other things, clinical trials, marketing authorization, commercial 
sales and distribution of products. Whether or not it obtains FDA approval for a product, a sponsor will need to obtain the necessary approvals by the 
comparable foreign regulatory authorities before it can commence clinical trials or marketing of the product in those countries or jurisdictions. Specifically, 
the process governing approval of medicinal products in the EU generally follows the same lines as in the United States. It entails satisfactory completion 
of preclinical studies and adequate and well-controlled clinical trials to establish the safety and efficacy of the product for each proposed indication. It also 
requires the submission to the relevant competent authorities of a marketing authorization application, or MAA, and granting of a marketing authorization 
by these authorities before the product can be marketed and sold in the EU. 

Clinical trial approval

On January 31, 2022, the new Clinical Trials Regulation (EU) No 536/2014, or the New Regulation, became effective in the European Union and replaced 
the prior Clinical Trials Directive 2001/20/EC. The new regulation aims at simplifying and streamlining the authorization, conduct and transparency of 
clinical trials in the EU. Under the new coordinated procedure for the approval of clinical trials, the sponsor of a clinical trial to be conducted in more than 
one Member State of the EU, or EU Member State, will only be required to submit a single application for approval. The submission will be made through 
the Clinical Trials Information System, a new clinical trials portal overseen by the EMA and available to clinical trial sponsors, competent authorities of the 
EU Member States and the public. 

Beyond streamlining the process, the New Regulation includes a single set of documents to be prepared and submitted for the application as well as 
simplified reporting procedures for clinical trial sponsors, and a harmonized procedure for the assessment of applications for clinical trials, which is divided 
in two parts. Part I is assessed by the competent authorities of all EU Member States in which an application for authorization of a clinical trial has been 
submitted, or the Member States Concerned. Part II is assessed separately by each Member State Concerned. Strict deadlines have been established for the 
assessment of clinical trial applications. The role of the relevant ethics committees in the assessment procedure will continue to be governed by the national 
law of the Member State Concerned. However, overall related timelines will be defined by the New Regulation.

The New Regulation did not change the preexisting requirement that a sponsor must obtain prior approval from the competent national authority of the EU 
Member State in which the clinical trial is to be conducted. If the clinical trial is conducted in different EU Member States, the competent authorities in 
each of these EU Member States must provide their approval for the conduct of the clinical trial. Furthermore, the sponsor may only start a clinical trial at a 
specific clinical site after the applicable ethics committee has issued a favorable opinion.

Parties conducting certain clinical trials must, as in the United States, post clinical trial information in the EU at the EudraCT website: 
https://eudract.ema.europa.eu.

Marketing authorization 

To obtain a marketing authorization for a gene therapy product under the EU regulatory system, a sponsor must submit an application via the centralized 
procedure administered by the European Medicines Agency (EMA). Specifically, the grant of marketing authorization in the EU for products containing 
viable human tissues or cells such as gene therapy medicinal products is governed by Regulation 1394/2007/EC on advanced therapy medicinal products, 
read in combination with Directive 2001/83/EC of the European Parliament and of the Council, commonly known as the Community code on medicinal 
products. Regulation 1394/2007/EC lays down specific rules concerning the authorization, supervision, and pharmacovigilance of gene therapy medicinal 
products, somatic cell therapy medicinal products, and tissue engineered products. Manufacturers of advanced therapy medicinal products must 
demonstrate the quality, safety, and efficacy of their products to the EMA’s Committee for Advance Therapies which provides a draft opinion regarding the 
application for marketing authorization and which is subject to final approval by the EMA’s Committee for Medicinal Products for Human Use. The 
European Commission grants or refuses marketing authorization in light of that final approval. 

Under the centralized procedure in the EU, the maximum timeframe for the evaluation of an MAA is 210 days, excluding clock stops when additional 
information or written or oral explanation is to be provided by the sponsor in response to questions of the Committee for Medicinal Products for Human 
Use, or CHMP. Accelerated evaluation may be granted by the CHMP in exceptional cases, when a medicinal product is of major interest from the point of 
view of public health and, in particular, from the viewpoint of therapeutic innovation. If the CHMP accepts such a request, the time limit of 210 days will 
be reduced to 150 days, but it is possible that the CHMP may revert to the standard time limit for the centralized procedure if it determines that it is no 
longer appropriate to conduct an accelerated assessment. 

Conditional approval

In specific circumstances, E.U. legislation (Article 14–a Regulation (EC) No 726/2004 (as amended by Regulation (EU) 2019/5 and Regulation (EC) No 
507/2006 on Conditional Marketing Authorizations for Medicinal Products for Human Use) enables sponsors to obtain a conditional marketing 
authorization prior to obtaining the comprehensive clinical data required for an application for a full 

43

 
marketing authorization. Such conditional approvals may be granted for product candidates (including medicines designated as orphan medicinal products) 
if (1) the product candidate is intended for the treatment, prevention or medical diagnosis of seriously debilitating or life-threatening diseases; (2) the 
product candidate is intended to meet unmet medical needs of patients; (3) a marketing authorization may be granted prior to submission of comprehensive 
clinical data provided that the benefit of the immediate availability on the market of the medicinal product concerned outweighs the risk inherent in the fact 
that additional data are still required; (4) the risk-benefit balance of the product candidate is positive; and (5) it is likely that the sponsor will be in a 
position to provide the required comprehensive clinical trial data. A conditional marketing authorization may contain specific obligations to be fulfilled by 
the marketing authorization holder, including obligations with respect to the completion of ongoing or new studies and with respect to the collection of 
pharmacovigilance data. Conditional marketing authorizations are valid for one year, and may be renewed annually, if the risk-benefit balance remains 
positive, and after an assessment of the need for additional or modified conditions or specific obligations. The timelines for the centralized procedure 
described above also apply with respect to the review by the CHMP of applications for a conditional marketing authorization. 

Regulatory data exclusivity in the EU

In the EU, new chemical entities approved on the basis of a complete independent data package qualify for eight years of data exclusivity upon marketing 
authorization and an additional two years of market exclusivity pursuant to Regulation (EC) No 726/2004, as amended, and Directive 2001/83/EC, as 
amended. Data exclusivity prevents regulatory authorities in the EU from referencing the innovator’s data to assess a generic (abbreviated) application for a 
period of eight years. This also applies to biosimilars. During the additional two-year period of market exclusivity, a generic marketing authorization 
application can be submitted, and the innovator’s data may be referenced, but no generic medicinal product can be marketed until the expiration of the 
market exclusivity. The overall ten-year period will be extended to a maximum of eleven years if, during the first eight years of those ten years, the 
marketing authorization holder obtains an authorization for one or more new therapeutic indications which, during the scientific evaluation prior to 
authorization, is held to bring a significant clinical benefit in comparison with existing therapies. In addition, if a pediatric investigation plan is accepted, 
then a further year of market exclusivity might be obtained (or in the alternative a patent extension (SPC) of a further 6 months). For orphan medicinal 
products, the periods are separate and different in that there is a total of 10-year data exclusivity and if they have a PIP, there is a further two-year extension 
to that 10-year period. Even if a compound is considered to be a new chemical or biological entity so that the innovator gains the prescribed period of data 
exclusivity, another company may market another version of the product if such company obtained marketing authorization based on an MAA with a 
complete independent data package of pharmaceutical tests, preclinical tests and clinical trials. 

Periods of authorization and renewals 

A marketing authorization is valid for five years, in principle, and it may be renewed after five years on the basis of a reevaluation of the risk-benefit 
balance by the EMA or by the competent authority of the authorizing member state. To that end, the marketing authorization holder must provide the EMA 
or the competent authority with a consolidated version of the file in respect of quality, safety and efficacy, including all variations introduced since the 
marketing authorization was granted, at least six months before the marketing authorization ceases to be valid. Once renewed, the marketing authorization 
is valid for an unlimited period, unless the European Commission or the competent authority decides, on justified grounds relating to pharmacovigilance, to 
proceed with one additional five-year renewal period. Any authorization that is not followed by the placement of the drug on the EU market (in the case of 
the centralized procedure) or on the market of the authorizing member state within three years after authorization ceases to be valid. 

Regulatory requirements after marketing authorization 

Following approval, the holder of the marketing authorization is required to comply with a range of requirements applicable to the manufacturing, 
marketing, promotion and sale of the medicinal product. These include compliance with the EU’s stringent pharmacovigilance or safety reporting rules, 
pursuant to which post-authorization studies and additional monitoring obligations can be imposed. In addition, the manufacturing of authorized products, 
must also be conducted in strict compliance with the EMA’s GMP requirements and comparable requirements of other regulatory bodies in the EU, which 
mandate the methods, facilities, and controls used in manufacturing, processing and packing of drugs to assure their safety and identity. The marketing and 
promotion of authorized products, including industry-sponsored continuing medical education and advertising directed toward the prescribers of drugs 
and/or the general public, are strictly regulated in the EU under Directive 2001/83EC, as amended. 

PRIME designation in the EU 

The EU has a Priority Medicines, or PRIME, scheme that is intended to encourage drug development in areas of unmet medical need and provides 
accelerated assessment of products representing substantial innovation reviewed under the centralized procedure. Products from small- and medium-sized 
enterprises may qualify for earlier entry into the PRIME scheme than larger companies. Many benefits accrue to sponsors of product candidates with 
PRIME designation, including but not limited to, early and proactive regulatory dialogue with the EMA, frequent discussions on clinical trial designs and 
other development program elements, and accelerated marketing authorization application assessment once a dossier has been submitted. 

44

 
Pediatric studies

Prior to obtaining a marketing authorization in the EU, sponsors must demonstrate compliance with all measures included in an EMA-approved PIP 
covering all subsets of the pediatric population, unless the EMA has granted a product-specific waiver, a class waiver, or a deferral for one or more of the 
measures included in the PIP. The respective requirements for all marketing authorization procedures are provided in Regulation (EC) No 1901/2006, the 
so-called Paediatric Regulation. This requirement also applies when a company wants to add a new indication, pharmaceutical form or route of 
administration for a medicine that is already authorized. The Paediatric Committee of the EMA, or PDCO, may grant deferrals for some medicines, 
allowing a company to delay development of the medicine for children until there is enough information to demonstrate its effectiveness and safety in 
adults. The PDCO may also grant waivers when development of a medicine for children is not needed or is not appropriate, such as for diseases that only 
affect the elderly population. Before an MAA can be filed, or an existing marketing authorization can be amended, the EMA determines that companies 
actually comply with the agreed studies and measures listed in each relevant PIP.

Orphan drug designation and exclusivity 

Regulation (EC) No 141/2000 and Regulation (EC) No. 847/2000 provide that a product can be designated as an orphan drug by the European Commission 
if its sponsor can establish: that the product is intended for the diagnosis, prevention or treatment of (1) a life-threatening or chronically debilitating 
condition affecting not more than five in ten thousand persons in the EU when the application is made, or (2) a life-threatening, seriously debilitating or 
serious and chronic condition in the EU and that without incentives it is unlikely that the marketing of the drug in the EU would generate sufficient return 
to justify the necessary investment. For either of these conditions, the sponsor must demonstrate that there exists no satisfactory method of diagnosis, 
prevention, or treatment of the condition in question that has been authorized in the EU or, if such method exists, the drug will be of significant benefit to 
those affected by that condition.  

Pediatric Exclusivity

If a sponsor obtains a marketing authorization in all EU member states, or a marketing authorization granted in the centralized procedure by the European 
Commission, and the study results for the pediatric population are included in the product information, even when negative, the medicine is then eligible 
for an additional six-month period of qualifying patent protection through extension of the term of the Supplementary Protection Certificate, or SPC.

Patent term extensions in the EU and other jurisdictions

The EU also provides for patent term extension through SPCs. The rules and requirements for obtaining an SPC are similar to those in the United States. 
An SPC may extend the term of a patent for up to five years after its originally scheduled expiration date and can provide up to a maximum of fifteen years 
of marketing exclusivity for a drug. In certain circumstances, these periods may be extended for six additional months if pediatric exclusivity is obtained, 
which is described in detail below. Although SPCs are available throughout the EU, sponsors must apply on a country-by-country basis. Similar patent term 
extension rights exist in certain other foreign jurisdictions outside the EU.

General data protection regulation 

Similar to the laws in the United States, there are significant privacy and data security laws that apply in Europe and other countries. The collection, use, 
disclosure, transfer, or other processing of personal data, including personal health data, regarding individuals who are located in the European Economic 
Area, or the EEA, and the processing of personal data that takes place in the EEA, is subject to the EU’s General Data Protection Regulation, or GDPR, 
which became effective on May 25, 2018. The GDPR is wide-ranging in scope and imposes numerous requirements on companies that process personal 
data, and it imposes heightened requirements on companies that process health and other sensitive data, such as requiring in many situations that a 
company obtain the consent of the individuals to whom the sensitive personal data relate before processing such data. Examples of obligations imposed by 
the GDPR on companies processing personal data that fall within the scope of the GDPR include providing information to individuals regarding data 
processing activities, implementing safeguards to protect the security and confidentiality of personal data, appointing a data protection officer, providing 
notification of data breaches, and taking certain measures when engaging third-party processors. The GDPR also imposes strict rules on the transfer of 
personal data to countries outside the EEA, including the U.S., and permits data protection authorities to impose large penalties for violations of the GDPR, 
including potential fines of up to €20 million or 4% of annual global revenues, whichever is greater. The GDPR also confers a private right of action on 
data subjects and consumer associations to lodge complaints with supervisory authorities, seek judicial remedies, and obtain compensation for damages 
resulting from violations of the GDPR. Compliance with the GDPR is a rigorous and time-intensive process that may increase the cost of doing business or 
require companies to change their business practices to ensure full compliance.

There are ongoing concerns about the ability of companies to transfer personal data from the EU to other countries. In July 2020, the Court of Justice of the 
European Union, or the CJEU, invalidated the EU-U.S. Privacy Shield framework, or Privacy Shield, one of the mechanisms used to legitimize the transfer 
of personal data from the EEA to the U.S. The CJEU decision also drew into question the long-term viability of an alternative means of data transfer, the 
standard contractual clauses, for transfers of personal data from the EEA to the U.S. While we were not self-certified under the Privacy Shield, this CJEU 
decision may lead to increased scrutiny on data transfers from the EU to the U.S. generally and increase our costs of compliance with data privacy 
legislation as well as our costs of negotiating appropriate privacy and security agreements with our vendors and business partners.

45

 
On June 23, 2016, the electorate in the U.K. voted in favor of leaving the EU, commonly referred to as Brexit. As with other issues related to Brexit, there 
are open questions about how personal data will be protected in the U.K. and whether personal information can transfer from the EU to the U.K. Following 
the withdrawal of the U.K. from the EU, the U.K. Data Protection Act 2018 applies to the processing of personal data that takes place in the U.K. and 
includes parallel obligations to those set forth by GDPR. While the Data Protection Act of 2018 in the U.K. that “implements” and complements the GDPR 
has achieved Royal Assent on May 23, 2018 and is now effective in the U.K., it is unclear whether transfer of data from the EEA to the U.K. will remain 
lawful under the GDPR. The U.K. government has already determined that it considers all European Union 27 and EEA member states to be adequate for 
the purposes of data protection, ensuring that data flows from the U.K. to the EU/EEA remain unaffected. In addition, a recent decision from the European 
Commission appears to deem the U.K. as being “essentially adequate” for purposes of data transfer from the EU to the U.K., although this decision may be 
re-evaluated in the future. 

Additionally, in October 2022, President Biden signed an executive order to implement the EU-U.S. Data Privacy Framework, which would serve as a 
replacement to the EU-US Privacy Shield. The European Commission initiated the process to adopt an adequacy decision for the EU-US Data Privacy 
Framework in December 2022. It is unclear if and when the framework will be finalized and whether it will be challenged in court. The uncertainty around 
this issue may impact any business operations we may conduct in the EU.

Beyond the GDPR, there are privacy and data security laws in a growing number of countries around the world. While many loosely follow the GDPR as a 
model, other laws contain different or conflicting provisions. These laws will impact our ability to conduct our business activities, including both our 
clinical trials and any eventual sale and distribution of commercial products. 

Brexit and the regulatory framework in the U.K. 

The United Kingdom’s withdrawal from the EU, commonly referred to as Brexit, took place on January 31, 2020. The EU and the United Kingdom 
reached an agreement on their new partnership in the Trade and Cooperation Agreement, or the Trade and Cooperation Agreement, which was applied 
provisionally beginning on January 1, 2021 and which entered into force on May 1, 2021. The Trade and Cooperation Agreement focuses primarily on free 
trade by ensuring no tariffs or quotas on trade in goods, including healthcare products such as medicinal products. Thereafter, the EU and the United 
Kingdom will form two separate markets governed by two distinct regulatory and legal regimes. As such, the Trade and Cooperation Agreement seeks to 
minimize barriers to trade in goods while accepting that border checks will become inevitable as a consequence that the United Kingdom is no longer part 
of the single market. As of January 1, 2021, the Medicines and Healthcare products Regulatory Agency, or the MHRA, became responsible for supervising 
medicines and medical devices in Great Britain, comprising England, Scotland and Wales under domestic law, whereas Northern Ireland continues to be 
subject to EU rules under the Northern Ireland Protocol. The MHRA will rely on the Human Medicines Regulations 2012 (SI 2012/1916) (as amended), or 
the HMR, as the basis for regulating medicines. The HMR has incorporated into the domestic law the body of EU law instruments governing medicinal 
products that pre-existed prior to the United Kingdom’s withdrawal from the EU. 

Since a significant proportion of the regulatory framework for pharmaceutical products in the United Kingdom covering the quality, safety, and efficacy of 
pharmaceutical products, clinical trials, marketing authorization, commercial sales, and distribution of pharmaceutical products is derived from EU 
directives and regulations, Brexit may have a material impact upon the regulatory regime with respect to the development, manufacture, importation, 
approval and commercialization of our product candidates in the United Kingdom. For example, the United Kingdom is no longer covered by the 
centralized procedures for obtaining EU-wide marketing authorization from the EMA, and a separate marketing authorization will be required to market 
our product candidates in the United Kingdom. Until December 31, 2023, it is possible for the MHRA to rely on a decision taken by the European 
Commission on the approval of a new marketing authorization via the centralized procedure.

Furthermore, while the Data Protection Act of 2018 in the United Kingdom that “implements” and complements the European Union’s GDPR has achieved 
Royal Assent on May 23, 2018 and is now effective in the United Kingdom, it is still unclear whether transfer of data from the EEA to the United Kingdom 
will remain lawful under GDPR. The Trade and Cooperation Agreement provided for a transitional period during which the United Kingdom was treated 
like an EU Member State in relation to processing and transfers of personal data. After such period, the United Kingdom became a “third country” under 
the GDPR. The United Kingdom has already determined that it considers all of the EU 27 and EEA member states to be adequate for the purposes of data 
protection, ensuring that data flows from the United Kingdom to the EU/EEA remain unaffected. In addition, a recent decision from the European 
Commission appears to deem the U.K. as being “essentially adequate” for purposes of data transfer from the EU to the U.K., although this decision may be 
re-evaluated in the future. 

Coverage, pricing, and reimbursement 

Significant uncertainty exists as to the coverage and reimbursement status of any product candidates for which we may seek regulatory approval by the 
FDA or other government authorities. In the United States and markets in other countries, patients who are prescribed treatments for their conditions and 
providers performing the prescribed services generally rely on third-party payors to reimburse all or part of the associated healthcare costs. Patients are 
unlikely to use any product candidates we may develop unless coverage is provided and reimbursement is adequate to cover a significant portion of the cost 
of such product candidates. Sales of our products will depend, in significant part, on the availability of coverage and the adequacy of reimbursement from 
third-party payors. 

46

 
Within the United States, third-party payors include government authorities or government healthcare programs, such as Medicare and Medicaid, and 
private entities, such as managed care organizations, private health insurers and other organizations. The process for determining whether a third-party 
payor will provide coverage for a product may be separate from the process for setting the reimbursement rate that the payor will pay for the drug product. 
Third-party payors may limit coverage to specific products on an approved list, or formulary, which might not include all of the FDA-approved products 
for a particular indication. Some third-party payors may manage utilization of a particular product by requiring pre-approval (known as “prior 
authorization”) for coverage of particular prescriptions (to allow the payor to assess medical necessity). Moreover, a third-party payor’s decision to provide 
coverage for a drug product does not imply that an adequate reimbursement rate will be approved. Adequate third-party reimbursement may not be 
available to enable us to maintain net price levels sufficient to realize an appropriate return on our investment in product development. Additionally, 
coverage and reimbursement for drug products can differ significantly from payor to payor. One third-party payor’s decision to cover a particular drug 
product or service does not ensure that other payors will also provide coverage for the drug product or will provide coverage at an adequate reimbursement 
rate. 

Third-party payors are increasingly challenging the price and examining the cost-effectiveness of new products and services in addition to their safety and 
efficacy. To obtain or maintain coverage and reimbursement for any current or future product, we may need to conduct expensive pharmacoeconomic 
studies to demonstrate the medical necessity and cost-effectiveness of our product. These studies will be in addition to the studies required to obtain 
regulatory approvals. If third-party payors do not consider a product to be cost-effective compared to other available therapies, they may not cover the 
product after approval as a benefit under their plans or, if they do, the level of payment may not be sufficient to allow a company to sell its products at a 
profit. Thus, obtaining and maintaining reimbursement status is time-consuming and costly. 

As noted above, the marketability of any product candidates for which we receive regulatory approval for commercial sale may suffer if the government 
and other third-party payors fail to provide coverage and adequate reimbursement. There is an emphasis on cost containment measures in the United States 
and we expect the pressure on pharmaceutical pricing will increase. Coverage policies and third-party reimbursement rates may change at any time. Even if 
favorable coverage and reimbursement status is attained for one or more product candidates for which we receive regulatory approval from one or more 
third party payors, less favorable coverage policies and reimbursement rates may be implemented in the future. 

If we obtain appropriate approval in the future to market any of our current product candidates in the United States, we may be required to provide 
discounts or rebates under government healthcare programs or to certain government and private purchasers in order to obtain coverage under federal 
healthcare programs such as Medicaid. Participation in such programs may require us to track and report certain drug prices. We may be subject to fines 
and other penalties if we fail to report such prices accurately. 

Outside the United States, ensuring adequate coverage and payment for any product candidates we may develop will face challenges. Pricing of 
prescription pharmaceuticals is subject to governmental control in many countries. Pricing negotiations with governmental authorities can extend well 
beyond the receipt of regulatory marketing approval for a product and may require us to conduct a clinical trial that compares the cost effectiveness of any 
product candidates we may develop to other available therapies. The conduct of such a clinical trial could be expensive and result in delays in our 
commercialization efforts. 

In the EU, pricing and reimbursement schemes vary widely from country to country because this is not yet the subject of harmonized EU law. Many 
countries provide that products may be marketed only after a reimbursement price has been agreed. Some countries may require the completion of 
additional studies that compare the cost-effectiveness of a particular product candidate to currently available therapies (so called health technology 
assessments) in order to obtain reimbursement or pricing approval and others with “peg” their pricing to a basket of other countries. EU member states may 
approve a specific price for a product, or it may instead adopt a system of direct or indirect controls on the profitability of the company placing the product 
on the market. Some member states, in addition to controlling pricing will monitor and control prescription volumes and issue guidance to physicians to 
limit prescriptions. Recently, many countries in the EU have increased the amount of discounts required on pharmaceuticals and these efforts could 
continue as countries attempt to manage healthcare expenditures, especially in light of the severe fiscal and debt crises experienced by many countries in 
the EU. The downward pressure on health care costs in general, particularly prescription products, has become intense. As a result, increasingly high 
barriers are being erected to the entry of new products. Political, economic, and regulatory developments may further complicate pricing negotiations, and 
pricing negotiations may continue after reimbursement has been obtained. Reference pricing used by various EU member states, and parallel trade 
(arbitrage between low-priced and high-priced member states), can further reduce prices. There can be no assurance that any country that has price controls 
or reimbursement limitations for pharmaceutical products will allow favorable reimbursement and pricing arrangements for any of our products, if 
approved in those countries. 

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Healthcare law and regulation 

Healthcare providers and third-party payors play a primary role in the recommendation and prescription of pharmaceutical products that are granted 
marketing approval. Arrangements with providers, consultants, third-party payors, and customers are subject to broadly applicable fraud and abuse, anti-
kickback, false claims laws, reporting of payments to healthcare providers and patient privacy laws and regulations and other healthcare laws and 
regulations that may constrain our business and/or financial arrangements. Restrictions under applicable federal and state healthcare laws and regulations, 
including certain laws and regulations applicable only if we have marketed products, include the following: 

•

•

•

•

•

•

•

•

federal false claims, false statements and civil monetary penalties laws prohibiting, among other things, any person from knowingly 
presenting, or causing to be presented, a false claim for payment of government funds or knowingly making, or causing to be made, a false 
statement to get a false claim paid; 

federal healthcare program anti-kickback law, which prohibits, among other things, persons from soliciting, receiving or providing 
remuneration, directly or indirectly, to induce either the referral of an individual for the purchasing or ordering of a good or service, for which 
payment may be made under federal healthcare programs such as Medicare and Medicaid; 

the federal Health Insurance Portability and Accountability Act of 1996, or HIPAA, which, in addition to privacy protections applicable to 
healthcare providers and other entities, prohibits executing a scheme to defraud any healthcare benefit program or making false statements 
relating to healthcare matters; 

the federal Food, Drug, and Cosmetic Act, or the FDCA, which among other things, strictly regulates drug marketing, prohibits 
manufacturers from marketing such products for off-label use and regulates the distribution of samples; 

federal laws that require pharmaceutical manufacturers to report certain calculated product prices to the government or provide certain 
discounts or rebates to government authorities or private entities, often as a condition of reimbursement under government healthcare 
programs; 

the so-called “federal sunshine” law, which requires pharmaceutical and medical device companies to monitor and report certain financial 
interactions with certain healthcare providers and teaching hospitals to the Center for Medicare & Medicaid Services within HHS for re-
disclosure to the public, as well as ownership and investment interests held by physicians and their immediate family members; 

state laws requiring pharmaceutical companies to comply with specific compliance standards, restrict financial interactions between 
pharmaceutical companies and healthcare providers or require pharmaceutical companies to report information related to payments to health 
care providers or marketing expenditures; and

analogous state and foreign laws and regulations, such as state anti-bribery, anti-kickback and false claims laws, which may apply to 
healthcare items or services that are reimbursed by non-governmental third-party payors, including private insurers. 

Health care and other reform 

A primary trend in the U.S. healthcare industry and elsewhere is cost containment. There have been a number of federal and state proposals during the last 
few years regarding the pricing of pharmaceutical and biopharmaceutical products, limiting coverage and reimbursement for drugs and other medical 
products, government control and other changes to the healthcare system in the United States.

In March 2010, the United States Congress enacted the Patient Protection and Affordable Care Act, as amended by the Health Care and Education 
Reconciliation Act of 2010, or collectively the PPACA, which, among other things, includes changes to the coverage and payment for drug products under 
government healthcare programs. Other legislative changes have been proposed and adopted since the PPACA was enacted. In August 2011, the Budget 
Control Act of 2011, among other things, created measures for spending reductions by Congress. A Joint Select Committee on Deficit Reduction, tasked 
with recommending a targeted deficit reduction of at least $1.2 trillion for the years 2013 through 2021, was unable to reach required goals, thereby 
triggering the legislation’s automatic reduction to several government programs. These changes included aggregate reductions to Medicare payments to 
providers of up to 2% per fiscal year, which went into effect in April 2013 and will remain in effect through 2031, with the exception of a temporary 
suspension and reduction from May 1, 2020 through June 30, 2022, with the 2% reduction resuming thereafter. Under current legislation the actual 
reduction in Medicare payments will vary from 1% in 2022 to up to 3% in the final fiscal year of this sequester. The American Taxpayer Relief Act of 
2012, among other things, reduced Medicare payments to several providers and increased the statute of limitations period for the government to recover 
overpayments to providers from three to five years. These laws may result in additional reductions in Medicare and other healthcare funding and otherwise 
affect the prices we may obtain for any of our product candidates for which we may obtain regulatory approval or the frequency with which any such 
product candidate is prescribed or used. 

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Since enactment of the PPACA, there have been, and continue to be, numerous legal challenges and Congressional actions to repeal and replace provisions 
of the law. For example, with enactment of the Tax Cuts and Jobs Act of 2017, or the Tax Act, Congress repealed the “individual mandate.” The repeal of 
this provision, which requires most Americans to carry a minimal level of health insurance, became effective in 2019. Further, on December 14, 2018, a 
U.S. District Court judge in the Northern District of Texas ruled that the individual mandate portion of the PPACA is an essential and inseverable feature of 
the PPACA, and therefore because the mandate was repealed as part of the Tax Act, the remaining provisions of the PPACA are invalid as well. The U.S. 
Supreme Court heard this case on November 10, 2020 and, on June 17, 2021, dismissed this action after finding that the plaintiffs do not have standing to 
challenge the constitutionality of the PPACA. Litigation and legislation over the PPACA are likely to continue, with unpredictable and uncertain results. 

In January 2021, a new executive order directed federal agencies to reconsider rules and other policies that limit Americans’ access to healthcare and 
consider actions that will protect and strengthen that access. Under this order, federal agencies are directed to re-examine: policies that undermine 
protections for people with pre-existing conditions, including complications related to COVID‑19; demonstrations and waivers under Medicaid and the 
PPACA that may reduce coverage or undermine the programs, including work requirements; policies that undermine the Health Insurance Marketplace or 
other markets for health insurance; policies that make it more difficult to enroll in Medicaid and under the PPACA; and policies that reduce affordability of 
coverage or financial assistance, including for dependents.

Pharmaceutical Prices

The prices of prescription pharmaceuticals have also been the subject of considerable discussion in the United States. There have been several recent U.S. 
congressional inquiries, as well as proposed and enacted state and federal legislation designed to, among other things, bring more transparency to 
pharmaceutical pricing, review the relationship between pricing and manufacturer patient programs, and reduce the costs of pharmaceuticals under 
Medicare and Medicaid. In 2020, President Trump issued several executive orders intended to lower the costs of prescription products and certain 
provisions in these orders have been incorporated into regulations. These regulations include an interim final rule implementing a most favored nation 
model for prices that would tie Medicare Part B payments for certain physician-administered pharmaceuticals to the lowest price paid in other 
economically advanced countries, effective January 1, 2021. That rule, however, has been subject to a nationwide preliminary injunction and, on December 
29, 2021, the Centers for Medicare & Medicaid Services, or CMS, issued a final rule to rescind it. With issuance of this rule, CMS stated that it will explore 
all options to incorporate value into payments for Medicare Part B pharmaceuticals and improve beneficiaries' access to evidence-based care.

In addition, in October 2020, HHS and the FDA published a final rule allowing states and other entities to develop a Section 804 Importation Program, or 
SIP, to import certain prescription products from Canada into the United States. The final rule is currently the subject of ongoing litigation, but at least six 
states (Vermont, Colorado, Florida, Maine, New Mexico, and New Hampshire) have passed laws allowing for the importation of products from Canada 
with the intent of developing SIPs for review and approval by the FDA. Further, on November 20, 2020, HHS finalized a regulation removing safe harbor 
protection for price reductions from pharmaceutical manufacturers to plan sponsors under Part D, either directly or through pharmacy benefit managers, 
unless the price reduction is required by law. The rule also creates a new safe harbor for price reductions reflected at the point-of-sale, as well as a new safe 
harbor for certain fixed fee arrangements between pharmacy benefit managers and manufacturers, the implementation of which has been delayed until 
January 1, 2026 by the Infrastructure Investment and Jobs Act.

In September 2021, acting pursuant to an executive order signed by President Biden, HHS released its plan to reduce pharmaceutical prices. The key 
features of that plan are to: (a) make pharmaceutical prices more affordable and equitable for all consumers and throughout the health care system by 
supporting pharmaceutical price negotiations with manufacturers; (b) improve and promote competition throughout the prescription pharmaceutical 
industry by supporting market changes that strengthen supply chains, promote biosimilars and generic drugs, and increase transparency; and (c) foster 
scientific innovation to promote better healthcare and improve health by supporting public and private research and making sure that market incentives 
promote discovery of valuable and accessible new treatments.

More recently, on August 16, 2022, the Inflation Reduction Act of 2022, or the IRA, was signed into law by President Biden. The new legislation has 
implications for Medicare Part D, which is a program available to individuals who are entitled to Medicare Part A or enrolled in Medicare Part B to give 
them the option of paying a monthly premium for outpatient prescription drug coverage. Among other things, the IRA requires manufacturers of certain 
drugs to engage in price negotiations with Medicare (beginning in 2026), with prices that can be negotiated subject to a cap; imposes rebates under 
Medicare Part B and Medicare Part D to penalize price increases that outpace inflation (first due in 2023); and replaces the Part D coverage gap discount 
program with a new discounting program (beginning in 2025). The IRA permits the Secretary of HHS to implement many of these provisions through 
guidance, as opposed to regulation, for the initial years.  

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Specifically, with respect to price negotiations, Congress authorized Medicare to negotiate lower prices for certain costly single-source drug and biologic 
products that do not have competing generics or biosimilars and are reimbursed under Medicare Part B and Part D. CMS may negotiate prices for ten high-
cost drugs paid for by Medicare Part D starting in 2026, followed by 15 Part D drugs in 2027, 15 Part B or Part D drugs in 2028 and 20 Part B or Part D 
drugs in 2029 and beyond. This provision applies to drug products that have been approved for at least 9 years and biologics that have been licensed for 13 
years, but does not apply to drugs and biologics that have been approved for a single rare disease or condition. Further, the legislation subjects drug 
manufacturers to civil monetary penalties and a potential excise tax for failing to comply with the legislation by offering a price that is not equal to or less 
than the negotiated “maximum fair price” under the law or for taking price increases that exceed inflation. The legislation also requires manufacturers to 
pay rebates for drugs in Medicare Part D whose price increases exceed inflation. The new law also caps Medicare out-of-pocket drug costs at an estimated 
$4,000 a year in 2024 and, thereafter beginning in 2025, at $2,000 a year.

At the state level, individual states are increasingly aggressive in passing legislation and implementing regulations designed to control pharmaceutical and 
biological product pricing, including price or patient reimbursement constraints, discounts, restrictions on certain product access and marketing cost 
disclosure and transparency measures, and, in some cases, designed to encourage importation from other countries and bulk purchasing. In addition, 
regional healthcare organizations and individual hospitals are increasingly using bidding procedures to determine what pharmaceutical products and which 
suppliers will be included in their prescription drug and other healthcare programs. These measures could reduce the ultimate demand for our products, 
once approved, or put pressure on our product pricing. We expect that additional state and federal healthcare reform measures will be adopted in the future, 
any of which could limit the amounts that federal and state governments will pay for healthcare products and services, which could result in reduced 
demand for our product candidates or additional pricing pressures. 

In the European Union, pricing and reimbursement schemes vary widely from country to country. Some countries provide that products may be marketed 
only after a reimbursement price has been agreed. Some countries may require the completion of additional studies that compare the cost-effectiveness of a 
particular drug candidate to currently available therapies or so-called health technology assessments, in order to obtain reimbursement or pricing approval. 
For example, the EU provides options for its member states to restrict the range of products for which their national health insurance systems provide 
reimbursement and to control the prices of medicinal products for human use. EU Member States may approve a specific price for a product or it may 
instead adopt a system of direct or indirect controls on the profitability of the company placing the product on the market. Other EU Member States allow 
companies to fix their own prices for products, but monitor and control prescription volumes and issue guidance to physicians to limit prescriptions. 
Recently, many countries in the EU have increased the amount of discounts required on pharmaceuticals and these efforts could continue as countries 
attempt to manage healthcare expenditures, especially in light of the severe fiscal and debt crises experienced by many countries in the EU. The downward 
pressure on health care costs in general, particularly prescription drugs, has become intense. As a result, increasingly high barriers are being erected to the 
entry of new products. Political, economic and regulatory developments may further complicate pricing negotiations, and pricing negotiations may 
continue after reimbursement has been obtained. Reference pricing used by various EU Member States, and parallel trade, i.e., arbitrage between low-
priced and high-priced member states, can further reduce prices. There can be no assurance that any country that has price controls or reimbursement 
limitations for pharmaceutical products will allow favorable reimbursement and pricing arrangements for any products, if approved in those countries. 

Human Capital Resources 

Team members

As of December 31, 2022, we had 507 team members employed with us full-time, of which 149 had a M.D. or Ph.D. degree. Of these team members, 301 
were engaged in research and development activities, 34 were engaged in clinical activities, 46 were in technical operations, 35 were in quality roles and 91 
were in general and administrative roles. None of our team members are represented by a labor union or covered by a collective bargaining agreement.

Human capital strategy

Our human capital strategy starts with our values:

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 A community of fearless innovators

Rigorous and honest in our research

Listening with open minds

Committed to each other

These values have helped us build a team that is focused on achieving our vision of providing life-long cures for patients suffering from serious diseases. 

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We believe the following priorities are key to realizing this vision: 

Engagement 

We have a highly engaged team, and we regularly collect feedback to ensure their voices are heard. We do this through a combination of engagement 
surveys, weekly team meetings, one-on-one interactions, and open forums. In 2022, 94% of our team members participated in the Boston Globe’s Top 
Places to Work survey. We have received this industry recognition for each of the last three years.

Total rewards (compensation and benefits)

We are committed to rewarding our team members in order to continue to attract and retain talent. We do this by regularly conducting market assessments 
to ensure our compensation program is competitively positioned. We also engage our team members on a regular basis to understand what benefits they 
value. This feedback has allowed us to evolve our total rewards to respond proactively to the needs of our team.

Wellness

In order to execute on our human capital strategy, the wellbeing of our team members comes first. To that end, we provide several benefits focused on the 
various physical, mental, and financial aspects of wellness. For example, during the COVID-19 pandemic, we implemented changes in our business to 
protect our team members and their families. These changes included flexible working schedules, weekly on-site testing, technology support and 
mandatory vaccination for all team members.

Inclusion, diversity & belonging

We continue to build an inclusive and diverse culture that allows for unique perspectives, creates an opportunity for all to grow and develop, and reflects 
the needs of relevant patient communities . Our Inclusion, Diversity and Belonging team develops monthly programs for our team members to engage with, 
hosts external speakers and panels, supports diverse local businesses, and creates communications for events that we honor throughout the year. In addition 
to our monthly programming, we are undertaking initiatives to accomplish the following goals, which were established with direct input from a company-
wide listening tour and are linked to our values:

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Inclusion, Diversity and Belonging at Beam is a cultural priority with a clear vision, intentional commitment, and transparent accountability. 

We incorporate an Inclusion, Diversity and Belonging lens into our programs, policies, and processes, ensuring Beam team members 
understand how inclusion, diversity and belonging can have a positive effect on the employee experience. 

We take meaningful action to increase and support underrepresented talent, with specific emphasis on Black and Latinx team members.

We honor and acknowledge various groups throughout the year, observing National Hispanic Heritage Month, Black History Month, 
International Women’s Day, Global Diversity Awareness Month, and Indigenous People’s Day.

Available Information

Our website address is www.beamtx.com, and our investor relations website is located at investors.beamtx.com. Information on our website is not 
incorporated by reference herein. We will make available on our website, free of charge, our Annual Report on Form 10-K, Quarterly Reports on Form 10-
Q, Current Reports on Form 8-K and any amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Exchange Act, as soon as 
reasonably practicable after we electronically file such material with, or furnish it to, the SEC. The SEC maintains an Internet site (http://www.sec.gov) 
containing reports, proxy and information statements, and other information regarding issuers that file electronically with the SEC. 

Investors and others should note that we announce material information to our investors using one or more of the following: SEC filings, press releases and 
our corporate website, including without limitation the “Investors Center” section of our website. We use these channels, as well as social media channels 
such as Twitter and LinkedIn, in order to achieve broad, non-exclusionary distribution of information to the public and for complying with our disclosure 
obligations under Regulation FD. It is possible that the information we post on our corporate website or other social media could be deemed to be material 
information. Therefore, we encourage investors, the media, and others interested in our company to review the information we post on the “Investor 
Center” section of our corporate website and on our social media channels. The contents of our corporate website and social media channels are not, 
however, a part of this Annual Report on Form 10-K. 

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Item 1A. Risk Factors. 

You should carefully consider the risks and uncertainties described below together with all of the other information contained in this Annual Report on 
Form 10-K, including our consolidated financial statements and related notes appearing at the end of this Annual Report on Form 10-K, in evaluating our 
company. If any of the events or developments described below were to occur, our business, prospects, operating results and financial condition could 
suffer materially, the trading price of our common stock could decline. The risks and uncertainties described below are not the only ones we face. 
Additional risks and uncertainties not presently known to us or that we currently believe to be immaterial may also adversely affect our business. 

Risks related to our financial position and need for additional capital 

We have incurred significant losses since inception. We expect to incur losses for the foreseeable future and may never achieve or maintain 
profitability. 

Since inception, we have incurred significant operating losses. Our net loss was $289.1 million, $370.6 million and $194.6 million for the years ended 
December 31, 2022, 2021 and 2020, respectively. As of December 31, 2022, we had an accumulated deficit of $1.1 billion. We have financed our 
operations primarily through private placements of our preferred stock, proceeds from sales of our common stock and collaboration revenue. We have 
devoted substantially all of our efforts to research and development. We expect to continue to incur significant expenses and increasing operating losses for 
the foreseeable future. The net losses we incur may fluctuate significantly from quarter to quarter. We anticipate that our expenses will increase 
substantially if and as we: 

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advance clinical trials, including our BEACON trial and our anticipated trial for BEAM-201;

continue our research programs and our preclinical development of other product candidates from our research programs; 

seek to identify additional research programs and additional product candidates; 

initiate preclinical testing and clinical trials for any other product candidates we identify and develop; 

maintain, expand, enforce, defend and protect our intellectual property portfolio and provide reimbursement of third-party expenses related to 
our patent portfolio; 

seek marketing approvals for any of our product candidates that successfully complete clinical trials; 

establish a sales, marketing, and distribution infrastructure to commercialize any medicines for which we may obtain marketing approval; 

further develop our platform; 

hire additional personnel, including research and development, clinical, and commercial personnel; 

add operational, financial, and management information systems and personnel, including personnel to support our product development; 

acquire or in-license products, intellectual property, medicines, and technologies;

finish building and then maintain a commercial-scale cGMP manufacturing facility; and

continue to operate as a public company. 

We have not completed any clinical trials of any product candidates and expect that it will be many years, if ever, before we have a product candidate 
approved for commercialization. To become and remain profitable, we must develop and, either directly or through collaborators, eventually commercialize 
a medicine or medicines with significant market potential. This will require us to be successful in a range of challenging activities, including identifying 
product candidates, completing preclinical studies and clinical trials of product candidates, obtaining marketing approval for these product candidates, 
manufacturing, marketing, and selling those medicines for which we may obtain marketing approval, and satisfying any post-marketing requirements. We 
may never succeed in these activities and, even if we do, may never generate revenues that are significant or large enough to achieve profitability. Because 
of the numerous risks and uncertainties associated with developing base editing product candidates, we are unable to predict the extent of any future losses 
or when we will become profitable, if at all. If we do achieve profitability, we may not be able to sustain or increase profitability on a quarterly or annual 
basis. Our failure to become and remain profitable would decrease the value of our company and could impair our ability to raise capital, maintain our 
research and development efforts, expand our business, or continue our operations.

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We will need substantial additional funding. If we are unable to raise capital when needed, we would be forced to delay, reduce, or eliminate our 
research and product development programs or future commercialization efforts. 

Our operating expenses have increased and are expected to continue to increase in connection with our ongoing activities, particularly as we identify, 
continue the research and development of, initiate and continue clinical trials of, and seek marketing approval for, product candidates. In addition, if we 
obtain marketing approval for any product candidates we may develop, we expect to incur significant commercialization expenses related to product sales, 
marketing, manufacturing, and distribution to the extent that such sales, marketing, manufacturing, and distribution are not the responsibility of a 
collaborator. Accordingly, we will need to obtain substantial additional funding in connection with our continuing operations. If we are unable to raise 
capital when needed or on attractive terms, we would be forced to delay, reduce, or eliminate our research and product development programs or future 
commercialization efforts. 

At December 31, 2022, our cash, cash equivalents, and marketable securities were $1.1 billion. We believe that our existing cash, cash equivalents, and 
marketable securities will enable us to fund our operating expenses and capital expenditure requirements for at least the next 12 months. However, our 
operating plan may change as a result of factors currently unknown to us, and we may need to seek additional funding sooner than planned. Our future 
capital requirements will depend on many factors, including: 

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the cost of continuing to build our platform; 

the costs of acquiring licenses for the delivery modalities that will be used with our product candidates; 

the scope, progress, results, and costs of discovery, preclinical development, laboratory testing, manufacturing, and clinical trials for the 
product candidates we may develop; 

the costs of preparing, filing, and prosecuting patent applications, maintaining and enforcing our intellectual property and proprietary rights, 
and defending intellectual property-related claims; 

the costs, timing, and outcome of regulatory review of the product candidates we may develop; 

the costs of future activities, including product sales, medical affairs, marketing, manufacturing, distribution, coverage and reimbursement for 
any product candidates for which we receive regulatory approval to commercialize; 

the success of our license agreements and our collaborations;

our ability to establish and maintain additional license agreements and collaborations on favorable terms, if at all; 

the achievement of milestones or occurrence of other developments that trigger payments under any additional license agreements or 
collaboration agreements we obtain; 

the extent to which we acquire or in-license products, intellectual property and technologies;

the costs of operating as a public company; and

the costs of building, maintaining and expanding our internal manufacturing capacity. 

Identifying potential product candidates and conducting preclinical studies and clinical trials is a time-consuming, expensive, and uncertain process that 
takes years to complete, and we may never generate the necessary data or results required to obtain marketing approval and achieve product sales. In 
addition, even if we successfully identify and develop product candidates and those product candidates are approved, we may not achieve commercial 
success. Our commercial revenues, if any, will be derived from sales of medicines that we do not expect to be commercially available for many years, if 
ever. Accordingly, we will need to continue to rely on additional financing to achieve our business objectives. Adequate additional financing may not be 
available to us on acceptable terms, or at all. 

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Any additional fundraising efforts may divert the attention of our management from their day-to-day activities, which may adversely affect our ability to 
develop and, if approved, commercialize our product candidates. We cannot be certain that additional funding will be available to us on acceptable terms, 
or at all. We have no committed source of additional capital and, if we are unable to raise additional capital in sufficient amounts or on terms acceptable to 
us on a timely basis, we may have to significantly delay, scale back or discontinue the development or, if approved, commercialization of our product 
candidates or other research and development initiatives. Our current and any future license agreements and collaboration agreements may also be 
terminated if we are unable to meet the payment or other obligations under the agreements. We could be required to seek collaborators for product 
candidates we may develop at an earlier stage than otherwise would be desirable or on terms that are less favorable than might otherwise be available or 
relinquish or license on unfavorable terms our rights to product candidates we may develop in markets where we otherwise would seek to pursue 
development or commercialization ourselves.

If we are unable to obtain funding on a timely basis, we may also be unable to expand our operations or otherwise capitalize on our business opportunities, 
as desired, which could materially affect our business, financial condition and results of operations. Any of the above events could significantly harm our 
business, prospects, financial condition and results of operations and cause the price of our common stock to decline. 

Raising additional capital may cause dilution to our stockholders, restrict our operations, or require us to relinquish rights to our technologies or 
product candidates we may develop. 

Until such time, if ever, as we can generate substantial product revenues, we expect to finance our cash needs through a combination of equity offerings, 
debt financings, collaborations, strategic alliances, and licensing arrangements. We do not have any committed external source of capital. To the extent that 
we raise additional capital through the sale of equity or convertible debt securities, your ownership interest will be diluted. The terms of these securities 
may include liquidation or other preferences that adversely affect your rights as a common stockholder. Debt financing, if available, may involve 
agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures, 
declaring dividends, and possibly other restrictions. 

If we raise funds through additional collaborations, strategic alliances, or licensing arrangements with third parties, we may have to relinquish valuable 
rights to our technologies, future revenue streams, research programs, or product candidates we may develop, or we may have to grant licenses on terms 
that may not be favorable to us. If we are unable to raise additional funds through equity or debt financings when needed, we may be required to delay, 
limit, reduce, or terminate our product development or future commercialization efforts or grant rights to develop and market product candidates that we 
would otherwise prefer to develop and market ourselves. In addition, we have and may in the future enter collaboration and acquisition agreements, 
pursuant to which we are required to issue additional shares of our common stock in connection with future milestone payment obligations. These and 
other future issuances to our partners and collaborators may cause substantial dilution to our stockholders.

Our short operating history may make it difficult for you to evaluate the success of our business to date and to assess our future viability. 

We are an early-stage company. We were founded in January 2017 and began operations in July 2017. Our operations to date have been limited to 
organizing and staffing our company, business planning, raising capital, acquiring and developing our platform and technology, identifying potential 
product candidates, undertaking preclinical studies and initiating clinical trials. Many of our product development programs are still in the preclinical or 
research stage of development, and their risk of failure is high. We have not yet demonstrated an ability to successfully complete any clinical trials, 
including large-scale, pivotal clinical trials, obtain marketing approvals, manufacture a commercial-scale medicine, or arrange for a third party to do so on 
our behalf, or conduct sales and marketing activities necessary for successful commercialization. Typically, it takes about 10 to 15 years to develop a new 
medicine from the time it is discovered to when it is available for treating patients. Consequently, any predictions you make about our future success or 
viability may not be as accurate as they could be if we had a longer operating history.

Our limited operating history, particularly in light of the rapidly evolving base editing and gene editing field, may make it difficult to evaluate our 
technology and industry and predict our future performance. Our short history as an operating company makes any assessment of our future success or 
viability subject to significant uncertainty. We will encounter risks and difficulties frequently experienced by early stage companies in rapidly evolving 
fields. If we do not address these risks successfully, our business will suffer. 

In addition, as a new business, we may encounter other unforeseen expenses, difficulties, complications, delays, and other known and unknown factors. We 
will eventually need to transition from a company with a research focus to a company capable of supporting commercial activities. We may not be 
successful in such a transition. 

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We have never generated revenue from product sales and may never become profitable. 

Our ability to generate revenue from product sales and achieve profitability depends on our ability, alone or with collaborative partners, to successfully 
complete the development of, and obtain the regulatory approvals necessary to commercialize, product candidates we may identify for development. We do 
not anticipate generating revenues from product sales for the next several years, if ever. Our ability to generate future revenues from product sales depends 
heavily on our, or our collaborators’, ability to successfully: 

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identify product candidates and complete research and preclinical and clinical development of the product candidates we or our collaborators 
may identify; 

seek and obtain regulatory and marketing approvals for any of our product candidates for which we or our collaborators successfully 
complete clinical trials; 

launch and commercialize any of our product candidates for which we obtain regulatory and marketing approval by establishing a sales force, 
marketing, and distribution infrastructure or, alternatively, collaborating with a commercialization partner; 

qualify for adequate coverage and reimbursement by government and third-party payors for our product candidates for which we or our 
collaborators obtain regulatory and marketing approval; 

develop, maintain, and enhance a sustainable, scalable, reproducible, and transferable manufacturing process for the product candidates we or 
our collaborators may develop; 

manufacture materials in compliance with cGMP and establish the infrastructure necessary to support and develop large-scale manufacturing 
capabilities;

establish and maintain supply and manufacturing relationships with third parties that can provide adequate, in both amount and quality, 
products, and services to support clinical development and the market demand for our product candidates for which we or our collaborators 
obtain regulatory and marketing approval;

obtain market acceptance of any product candidates we or our collaborators may develop as viable treatment options; 

address competing technological and market developments; 

implement internal systems and infrastructure, as needed; 

negotiate favorable terms in any collaboration, licensing, or other arrangements into which we may enter and performing our obligations in 
such collaborations, licensing or other arrangements; 

maintain, protect, enforce, defend, and expand our portfolio of intellectual property rights, including patents, trade secrets, and know-how; 

avoid and defend against third-party interference, infringement, and other intellectual property claims; and 

attract, hire, and retain qualified personnel. 

Even if one or more of the product candidates we or our collaborators may develop are approved for commercial sale, we anticipate incurring significant 
costs associated with commercializing any approved product candidate. Our expenses could increase beyond expectations if we are required by the FDA, 
the EMA, or other regulatory authorities to perform clinical and other studies in addition to those that we currently anticipate. Even if we are able to 
generate revenues from the sale of any approved products, we may not become profitable and may need to obtain additional funding to continue operations. 

Even if we do achieve profitability, we may not be able to sustain or increase profitability on a quarterly or annual basis. Our failure to become and remain 
profitable would decrease the value of our company and could impair our ability to raise capital, maintain our research and development efforts, expand our 
business or continue our operations.

Our future ability to utilize our net operating loss carryforwards and certain other tax attributes may be limited. 

We have incurred substantial losses during our history, and we may never achieve profitability. To the extent that we continue to generate taxable losses, 
unused losses will carry forward to offset a portion of future taxable income, if any, subject to expiration of such carryforwards in the case of carryforwards 
generated prior to 2018. Additionally, we continue to generate business tax credits, including research and development tax credits, which generally may be 
carried forward to offset a portion of future taxable income, if any, subject to expiration of such credit carryforwards. In addition, under Sections 382 and 
383 of the Internal Revenue Code of 1986, as amended, or the Code, if a corporation undergoes an “ownership change,” generally defined as one or more 
shareholders or groups of shareholders who own at least 5% of the corporation’s equity increasing their ownership in the aggregate by a greater than 50 
percentage point change (by value) in their equity ownership over a three-year period, the corporation’s ability to use its pre-change net operating loss 
carryforwards, or NOLs, and other pre-change tax attributes (such as research and development tax credits) to offset 

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its post-change income or taxes may be limited. The amount of the annual limitation is determined based on the value of the corporation immediately prior 
to the ownership change. We have completed a Section 382 study as of December 31, 2021 to evaluate the availability of NOLs as of such date, however, 
our 382 study may have been incorrect, or we may experience ownership changes in the future as a result of shifts in our stock ownership, some of which 
are outside of our control. As a result, if we earn net taxable income, our ability to use our pre-change NOLs or other pre-change tax attributes to offset 
U.S. federal taxable income may be subject to limitations, which could potentially result in increased future tax liability to us. Additional limitations on our 
ability to utilize our NOLs to offset future taxable income may arise as a result of our corporate structure, whereby NOLs generated by certain of our 
subsidiaries or controlled entities may not be available to offset taxable income earned by our subsidiaries or other controlled entities. In addition, under 
legislation commonly referred to as the Tax Cuts and Jobs Act of 2017, or the Tax Act, as amended by the Coronavirus Aid, Relief, and Economic Security 
Act, or the CARES Act, the amount of post-2017 NOLs that we are permitted to deduct in any taxable year is limited to 80% of our taxable income in such 
year. The Tax Act generally eliminates the ability to carry back any NOLs to prior taxable years, while allowing post-2017 unused NOLs to be carried 
forward indefinitely. There is a risk that due to changes under the Tax Act, regulatory changes, or other unforeseen reasons, our existing NOLs or business 
tax credits could expire or otherwise be unavailable to offset future income tax liabilities. At the state level, there may also be periods during which the use 
of NOLs or business tax credits is suspended or otherwise limited, which could accelerate or permanently increase state taxes owed. For these reasons, we 
may not be able to realize a tax benefit from the use of our NOLs or tax credits, even if we attain profitability. 

Risks related to discovery, development, and commercialization 

Base editing is a novel technology that is not yet clinically validated for human therapeutic use. The approaches we are taking to discover and develop 
novel therapeutics are unproven and may never lead to marketable products. 

We are focused on developing potentially curative medicines utilizing base editing technology. Although there have been significant advances in the field 
of gene therapy, which typically involves introducing a copy of a gene into a patient’s cell, and gene editing in recent years, base editing technologies are 
new and largely unproven. The technologies that we have licensed and that we intend to develop and intend to license have not yet completed any clinical 
trials. The scientific evidence to support the feasibility of developing product candidates based on these technologies is both preliminary and limited, and 
base editing and delivery modalities for it are novel. Successful development of product candidates by us will require solving a number of issues, including 
safely delivering a therapeutic into target cells within the human body or in an ex vivo setting, optimizing the efficiency and specificity of such product 
candidates, and ensuring the therapeutic selectivity of such product candidates. Several biological steps are required for delivery of base editing medicines 
to translate into therapeutically active medicines. These processing steps may differ between individuals and differ based on the targeted tissue. These 
differences could lead to variable levels of therapeutic protein, variable activity, immunogenicity, or variable distribution to tissues further increasing the 
risk inherent in the development of base editing medicines. There can be no assurance we will be successful in solving any or all of these issues, or that we 
will be able to progress our preclinical studies or clinical trials in accordance with anticipated timelines.

We have concentrated our research efforts to date on preclinical work to bring therapeutics to the clinic for our initial indications, and our future success is 
highly dependent on the successful development of base editing technologies, cellular delivery methods and therapeutic applications of that technology. 
While some of the existing gene editing technologies have progressed to clinical trials, they continue to suffer from various limitations, and such limitations 
may affect our future success. We may decide to alter or abandon our initial programs as new data become available and we gain experience in developing 
base editing therapeutics. For example, in November 2022, we announced that we have decided to optimize our direct correction, “Makassar” approach, 
alongside our HPFH approach, for Wave 2 and Wave 3 of our sickle cell disease programs. We cannot be sure that our technologies will yield satisfactory 
products that are safe and effective, scalable or profitable in our initial indications or any other indication we pursue. 

Development activities in the field of base editing are currently subject to a number of risks related to the ownership and use of certain intellectual property 
rights that are subject to patent interference proceedings in the United States and opposition proceedings in Europe. For additional information regarding 
the risks that may apply to our and our licensors’ intellectual property rights, see the section entitled “—Risks related to our intellectual property”. 

We may not be successful in our efforts to identify and develop potential product candidates. If these efforts are unsuccessful, we may never become a 
commercial stage company or generate any revenues. 

The success of our business depends primarily upon our ability to identify, develop, and commercialize product candidates based on our gene editing 
platform. Many of our product development programs are still in the research or preclinical stage of development. Our research programs may fail to 
identify potential product candidates for clinical development for a number of reasons. Our research methodology may be unsuccessful in identifying 
potential product candidates, our potential product candidates may be shown to have harmful side effects in preclinical in vitro experiments or animal 
model studies, they may not show promising signals of therapeutic effect in such experiments or studies or they may have other characteristics that may 
make the product candidates impractical to manufacture, unmarketable, or unlikely to receive marketing approval. 

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In addition, although we believe base editing will position us to rapidly expand our portfolio of product candidates beyond our current product candidates 
we may develop after only minimal changes to the product candidate construct, we have not yet successfully developed any product candidate and our 
ability to expand our portfolio may never materialize. 

If any of these events occur, we may be forced to abandon our research or development efforts for a program or programs, which would have a material 
adverse effect on our business, financial condition, results of operations, and prospects. Research programs to identify new product candidates require 
substantial technical, financial, and human resources. We may focus our efforts and resources on potential programs or product candidates that ultimately 
prove to be unsuccessful, which would be costly and time-consuming. 

The gene editing field is relatively new and is evolving rapidly. We are focusing our research and development efforts primarily on gene editing using 
base editing technology, but other gene editing technologies may be discovered that provide significant advantages over base editing, which could 
materially harm our business. 

We focus our research and development efforts primarily on gene editing technologies using base editing. Other companies are also engaged in the research 
and development of gene editing technologies using zinc finger nucleases, engineered meganucleases, transcription activator-like effector nucleases, Cas9 
nucleases, transposon editing, prime editing, “gene writing,” programmable addition via site-specific targeting elements, and others. There can be no 
certainty that base editing technology will lead to the development of genetic medicines or that other gene editing technologies will not be considered better 
or more attractive for the development of medicines. Moreover, if we decide to focus primarily on gene editing technologies other than those involving 
base editing, we cannot be certain we will be able to obtain rights to such technologies. Although all of our founders who currently provide consulting and 
advisory services to us in the area of base editing technologies have assignment of inventions obligations to us with respect to the services they perform for 
us, these assignment of inventions obligations are subject to limitations and do not extend to their work in other fields or to the intellectual property arising 
from their employment with their respective academic and research institutions. To obtain intellectual property rights assigned by these founders to such 
institutions, we would need to enter into license agreements with such institutions, which may not be available on commercially reasonable terms or at all. 
Further, while our three founders have non-competition clauses in their respective consulting agreements, the non-competition obligation is limited to the 
field of base editing for human therapeutics, and our founders have developed and may in the future develop new technologies that are outside of the field 
of their non-competition obligations but may be competitive to our business. For example, David Liu, Feng Zhang and their respective groups at MIT and 
the Broad Institute have developed novel gene editing technologies, including transposon editing, base editing and prime editing technologies, outside of 
the field of their non-competition obligations that may be used to develop products that compete with our business. Any of these factors could reduce or 
eliminate our commercial opportunity, and could have a material adverse effect on our business, financial condition, results of operations, and prospects. 

We are very early in our development efforts. Many of our product candidates are still in preclinical development or earlier stages and it will be many 
years before we or our collaborators commercialize a product candidate, if ever. If we are unable to advance our product candidates to and through 
clinical development, obtain regulatory approval and ultimately commercialize our product candidates, or experience significant delays in doing so, our 
business will be materially harmed. 

We are very early in our development efforts and have focused our research and development efforts to date on base editing and delivery technology, 
identifying our initial targeted disease indications and product candidates in these indications. Our future success depends heavily on the successful 
development of our base editing product candidates and the results of our clinical trials, none of which have yet been completed. Our ability to generate 
product revenue, which we do not expect will occur for many years, if ever, will depend heavily on the successful development and, if approved, eventual 
commercialization of our product candidates, which may never occur. We currently generate no revenue from sales of any product, and we may never be 
able to develop or commercialize a marketable product. 

Commencing clinical trials in the United States is subject to acceptance by the FDA of our INDs and finalizing the trial design based on discussions with 
the FDA and other regulatory authorities. The FDA has in the past and may again in the future require us to complete additional preclinical studies and 
satisfy other FDA requests for our clinical trials, causing the start or progress of such trials to be delayed. For example, in July 2022 the FDA informed us 
that the BEAM-201 IND was placed on clinical hold. We subsequently received a formal clinical hold letter from the FDA, in which the FDA requested 
additional control data for preclinical studies and further analyses of certain off-target editing experiments. We submitted our response to the FDA in 
November 2022 and in December 2022, we announced that the FDA had lifted the clinical hold.

Even after we receive and incorporate guidance from these regulatory authorities, the FDA or other regulatory authorities could disagree that we have 
satisfied their requirements to commence our clinical trial or change their position on the acceptability of our data, trial design or the clinical endpoints 
selected, which may require us to complete additional preclinical studies or clinical trials or impose stricter requirements for approval than we currently 
expect. There are equivalent processes and risks applicable to clinical trial applications in other countries, including in Europe.

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Commercialization of our product candidates we may develop will require additional preclinical and clinical development; regulatory and marketing 
approval in multiple jurisdictions, including by the FDA and the EMA; obtaining manufacturing supply, capacity and expertise; building of a commercial 
organization; and significant marketing efforts. The success of product candidates we identify and develop will depend on many factors, including the 
following: 

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sufficiency of our financial and other resources to complete the necessary preclinical studies, IND-enabling studies, and clinical trials; 

regulatory clearance of IND applications or comparable foreign applications that allow commencement of our planned clinical trials or future 
clinical trials for our product candidates;

successful enrollment in, and completion of, clinical trials; 

receipt of marketing approvals from applicable regulatory authorities; 

establishment of arrangements with third-party manufacturers for clinical supply and commercial manufacturing and, where applicable, 
commercial manufacturing capabilities; 

successful development of our internal manufacturing processes and transfer to larger-scale facilities operated by either a CMO, or by us; 

obtaining and maintaining patent, trade secret, and other intellectual property protection and non-patent exclusivity for our medicines; 

launching commercial sales of the medicines, if and when approved, whether alone or in collaboration with others; 

acceptance of the products, if and when approved, by patients, the medical community, and third-party payors; 

effectively competing with other therapies and treatment options; 

a continued acceptable safety profile of the medicines following approval; 

enforcing and defending intellectual property and proprietary rights and claims; and 

supplying the product at a price that is acceptable to the pricing or reimbursement authorities in different countries. 

If we do not successfully achieve one or more of these activities in a timely manner or at all, we could experience significant delays or an inability to 
successfully commercialize any product candidates we may develop, which would materially harm our business. If we do not receive regulatory approvals 
for our product candidates, we may not be able to continue our operations. 

If any of the product candidates we may develop, or the delivery modalities we rely on to administer them, cause serious adverse events, undesirable 
side effects, or unexpected characteristics, such events, side effects or characteristics could delay or prevent regulatory approval of the product 
candidates, limit the commercial potential, or result in significant negative consequences following any potential marketing approval.

We have not completed human clinical trials of any of our product candidates. Moreover, there have been only a limited number of clinical trials involving 
the use of base editing technology similar to our technology. It is impossible to predict when or if any product candidates we develop will prove safe in 
humans. In the genetic medicine field, there have been several significant adverse events from gene therapy treatments in the past, including reported cases 
of leukemia, serious blood disorders and death. There can be no assurance that base editing technologies, or components of our product candidates or 
methods of delivery, will not cause undesirable side effects, as improper editing of a patient’s DNA and other effects could lead to lymphoma, leukemia, or 
other cancers, other serious conditions or syndromes or other aberrantly functioning cells.

A significant risk in any base editing product candidate is that “off-target” edits may occur, which could cause serious adverse events, undesirable side 
effects or unexpected characteristics. For example, Erwei Zuo et al. reported that cytosine base editors generated substantial off-target edits, that is, edits in 
unintended locations on the DNA, when tested in mouse embryos. Such unintended edits are referred to as “spurious deamination.” We cannot be certain 
that off-target editing will not occur in any of our planned or future clinical studies, and the lack of observed side effects in preclinical studies does not 
guarantee that such side effects will not occur in human clinical studies. We have developed assays that can detect off-target edits, even when such edits 
occur at very low frequencies. Using these assays, we have observed off-target edits in our base editing product candidates. As the sensitivity of these 
assays increases, it is possible that we will continue to detect more such off-target edits. While we do not believe that the off-target edits we have observed 
to date have had a material adverse impact on the safety or benefit of our product candidates, if, in the future, we detect off-target edits for a product 
candidate that negatively impact safety or efficacy, our ability to develop the product candidate as a therapeutic could be adversely affected. 

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There is also the potential risk of delayed adverse events following exposure to base editing therapy due to the permanence of edits to DNA or due to other 
components of product candidates used to carry the genetic material. Further, because base editing makes a permanent change, the therapy cannot be 
withdrawn, even after a side effect is observed. In addition, Rees et al. and Grunewald et al. have reported that the deaminases we currently use in our C 
base editors and our A base editors for use in DNA base editing also cause unintended mutations in RNA for as long as the editor is present in the cell.

Although we and others have demonstrated the ability to engineer base editors to improve the specificity of their edits in a laboratory setting, we cannot be 
sure that our engineering efforts will be effective in any product candidates that we may develop. For example, we might not be able to engineer an editor 
to make the desired change or a by-stander edit could diminish the effectiveness of an edit that we make.

In certain of our programs, we plan to use LNPs to deliver our base editors. LNPs have been shown to induce oxidative stress in the liver at certain doses, 
as well as initiate systemic inflammatory responses that can be fatal in some cases. While we aim to continue to optimize our LNPs, there can be no 
assurance that our LNPs will not have undesired effects. Our LNPs could contribute, in whole or in part, to one or more of the following: immune 
reactions; infusion reactions; complement reactions; opsonization reactions; antibody reactions including IgA, IgM, IgE or IgG or some combination 
thereof; or reactions to the polyethylene glycol from some lipids or polyethylene glycol otherwise associated with the LNP. Certain aspects of our 
investigational medicines may induce immune reactions from either the mRNA or the lipid as well as adverse reactions within liver pathways or 
degradation of the mRNA or the LNP, any of which could lead to significant adverse events in one or more of our current or future clinical trials. Many of 
these types of side effects have been seen for legacy LNPs. There may be uncertainty as to the underlying cause of any such adverse event, which would 
make it difficult to accurately predict side effects in future clinical trials and would result in significant delays in our programs.

Certain viral vectors that we may use in certain of our base editing programs, including AAV or lentiviruses, which are relatively new approaches used for 
disease treatment, also have known side effects, and for which additional risks could develop in the future. In past clinical trials that were conducted by 
others with non-AAV viral vectors, several significant side effects were caused by gene therapy treatments, including reported cases of leukemia and death. 
For example, in February 2021, bluebird bio reported a suspected unexpected serious adverse reaction, or SUSAR, of acute myeloid leukemia, and a 
SUSAR of myelodysplastic syndrome in its Phase 1/2 clinical trial of LentiGlobin, a gene therapy using a lentiviral vector for the treatment of sickle cell 
disease, which resulted in the FDA placing a temporary clinical hold on the trial and the temporary suspension of the conditional marketing authorization 
by the EMA of ZYNTEGLO (beti-cel), which also uses a lentiviral vector, for patients 12 years and older with transfusion-dependent beta thalassemia who 
do not have a β0/β0 genotype, for whom HSC transplantation is appropriate, but HLA related HSC donor is not available. Other potential side effects of 
viral vectors could include an immunologic reaction and insertional oncogenesis, which is the process whereby the insertion of a functional gene near a 
gene that is important in cell growth or division results in uncontrolled cell division, which could potentially enhance the risk of malignant transformation. 
If the vectors we use demonstrate a similar side effect, or other adverse events, we may be required to halt or delay further clinical development of any 
potential product candidates using such technology. Furthermore, the FDA has stated that lentiviral vectors possess characteristics that may pose high risks 
of delayed adverse events. Such delayed adverse events may occur in other viral vectors, including AAV vectors, at a lower rate.

In addition to side effects and adverse events caused by our product candidates, the conditioning administration process or related procedures which may be 
used in our electroporation pipeline also can cause adverse side effects and adverse events. Additionally, we are developing alternative conditioning 
regimes and we cannot predict if such regimes will be compatible with our product candidates. If in the future we are unable to demonstrate that such 
adverse events were not caused by the conditioning regimens used, or administration process or related procedure, the FDA, the European Commission, 
EMA or other regulatory authorities could order us to cease further development of, or deny or limit approval of, our product candidates using such 
regimens, processes or procedures for any or all target indications. Even if we are able to demonstrate that adverse events are not related to the product 
candidate or the administration of such product candidate, such occurrences could affect patient recruitment, the ability of enrolled patients to complete the 
clinical trial, or the commercial viability of any product candidates that obtain regulatory approval.

If any product candidates we develop are associated with serious adverse events, undesirable side effects, or unexpected characteristics, we may need to 
abandon their development or limit development to certain uses or subpopulations in which the serious adverse events, undesirable side effects or other 
characteristics are less prevalent, less severe, or more acceptable from a risk-benefit perspective, any of which would have a material adverse effect on our 
business, financial condition, results of operations, and prospects. Many product candidates that initially showed promise in early stage testing for treating 
cancer or other diseases have later been found to cause side effects that prevented further clinical development of the product candidates.

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If in the future we are unable to demonstrate that any of the above adverse events were caused by factors other than our product candidate, the FDA, the 
EMA or other regulatory authorities could order us to cease further development of, or deny approval of, any product candidates we are able to develop for 
any or all targeted indications. Even if we are able to demonstrate that all future serious adverse events are not product-related, such occurrences could 
affect patient recruitment or the ability of enrolled patients to complete the trial. Moreover, if we elect, or are required, to delay, suspend or terminate any 
clinical trial of any product candidate we may develop, the commercial prospects of such product candidates may be harmed and our ability to generate 
product revenues from any of these product candidates may be delayed or eliminated. Any of these occurrences may harm our ability to identify and 
develop product candidates, and may harm our business, financial condition, result of operations, and prospects significantly.

Additionally, if we successfully develop a product candidate and it receives marketing approval, the FDA could require us to adopt a REMS to ensure that 
the benefits of treatment with such product candidate outweigh the risks for each potential patient, which may include, among other things, a medication 
guide outlining the risks of the product for distribution to patients, a communication plan to health care practitioners, extensive patient monitoring, or 
distribution systems and processes that are highly controlled, restrictive, and more costly than what is typical for the industry. Furthermore, if we or others 
later identify undesirable side effects caused by any product candidate that we develop, several potentially significant negative consequences could result, 
including: 

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regulatory authorities may suspend or withdraw approvals of such product candidate;

regulatory authorities may require additional warnings on the label or limit the approved use of such product candidate;

we may be required to conduct additional clinical trials;

we could be sued and held liable for harm caused to patients; and

our reputation may suffer.

Any of these events could prevent us from achieving or maintaining market acceptance of any product candidates we may identify and develop and could 
have a material adverse effect on our business, financial condition, and results of operations.

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We have not tested many of our proposed delivery modalities and product candidates in clinical trials and any favorable preclinical results are not 
predictive of results that may be observed in clinical trials. 

We have not tested many of our proposed delivery modalities in clinical trials. For example, in certain of our base editing programs we intend to use novel 
viral technologies to deliver the base editor and guide RNA constructs of product candidates, however, the scientific evidence to support the feasibility of 
developing product candidates based on these technologies is both preliminary and limited. We also intend to use LNPs to deliver some of our base editors. 
While LNPs have been used in certain approved therapeutics, they have not been used in any approved gene editing therapy, such as base editors. 
Furthermore, as with many viral-mediated gene therapy approaches, certain clinical trial patients’ immune systems might prohibit the successful delivery, 
thereby potentially limiting treatment outcomes of these patients. Even if initial clinical trials in any of our product candidates are successful, these product 
candidates may fail to show the desired safety and efficacy in later stages of clinical development despite having successfully advanced through preclinical 
studies and initial clinical trials. 

There is a high failure rate for drugs and biologics proceeding through clinical trials. A number of companies in the pharmaceutical and biotechnology 
industries have suffered significant setbacks in later stage clinical trials even after achieving promising results in earlier stage clinical trials. Data obtained 
from preclinical and clinical activities are subject to varying interpretations, which may delay, limit, or prevent regulatory approval. In addition, regulatory 
delays or rejections may be encountered as a result of many factors, including changes in regulatory policy during the period of product development. 

Any such adverse events may cause us to delay, limit, or terminate ongoing or planned clinical trials, any of which would have a material adverse effect on 
our business, financial condition, results of operations, and prospects. 

In addition, the results of preclinical studies or clinical trials may not be predictive of the results of later preclinical studies or clinical trials. Moreover, 
preclinical and clinical data are often susceptible to varying interpretations and analyses, and many companies that have believed their product candidates 
performed satisfactorily in preclinical studies and clinical trials have nonetheless failed to obtain marketing approval of their product candidates. 

If we experience delays or difficulties in the enrollment of patients in clinical trials, our receipt of necessary regulatory approvals could be delayed or 
prevented. 

We or our collaborators may not be able to initiate or continue clinical trials for any product candidates we identify or develop if we are unable to locate 
and enroll a sufficient number of eligible patients to participate in these trials as required by the FDA, the EMA or other analogous regulatory authorities 
outside the United States, or as needed to provide appropriate statistical power for a given trial. Enrollment may be particularly challenging for some of the 
rare genetically defined diseases we are targeting in our most advanced programs, as well as for some of our product candidates for pediatric populations, 
and delays related to the COVID-19 pandemic could exacerbate delays in enrolling for new clinical trials. In addition, if patients are unwilling to 
participate in our base editing trials because of negative publicity from adverse events related to the biotechnology, gene therapy, or gene editing fields, 
competitive clinical trials for similar patient populations, clinical trials in competing products, or for other reasons, the timeline for recruiting patients, 
conducting studies, and obtaining regulatory approval of any product candidates we may develop may be delayed. Moreover, some of our competitors 
currently and may in the future have ongoing clinical trials for product candidates that treat the same indications as product candidates we are developing 
and may develop in the future, and patients who would otherwise be eligible for our clinical trials may instead enroll in clinical trials of our competitors’ 
product candidates.

Clinical trial patient enrollment is also affected by other factors, including: 

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severity of the disease under investigation; 

size of the patient population and process for identifying patients; 

design of the trial protocol; 

availability and efficacy of approved medications for the disease under investigation; 

availability of genetic testing for potential patients; 

ability to obtain and maintain patient informed consent; 

risk that enrolled patients will drop out before completion of the trial; 

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eligibility and exclusion criteria for the trial in question; 

perceived risks and benefits of the product candidate under trial; 

perceived risks and benefits of base editing as a therapeutic approach; 

efforts to facilitate timely enrollment in clinical trials; 

patient referral practices of physicians; 

ability to monitor patients adequately during and after treatment; and 

proximity and availability of clinical trial sites for prospective patients, especially for those conditions which have small patient pools. 

Our ability to successfully initiate, enroll, and complete a clinical trial in any foreign country is subject to numerous risks unique to conducting business in 
foreign countries, including: 

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difficulty in establishing or managing relationships with contract research organizations, or CROs, and physicians; 

different standards for the conduct of clinical trials; 

different standard-of-care for patients with a particular disease; 

difficulty in locating qualified local consultants, physicians, and partners; and 

potential burden of complying with a variety of foreign laws, medical standards, and regulatory requirements, including the regulation of 
pharmaceutical and biotechnology products and treatment and of gene editing technologies. 

Enrollment delays in our clinical trials may result in increased development costs for any product candidates we may develop, which would cause the value 
of our company to decline and limit our ability to obtain additional financing. If we or our collaborators have difficulty enrolling a sufficient number of 
patients to conduct our clinical trials as planned, we may need to delay, limit, or terminate ongoing or planned clinical trials, any of which would have an 
adverse effect on our business, financial condition, results of operations, and prospects. 

If clinical trials of any product candidates we identify and develop fail to demonstrate safety and efficacy to the satisfaction of regulatory authorities or 
do not otherwise produce positive results, we may incur additional costs or experience delays in completing, or ultimately be unable to complete, the 
development and commercialization of such product candidates. 

Before obtaining marketing approval from regulatory authorities for the sale of any product candidates we identify and develop, we must complete 
preclinical development and then conduct extensive clinical trials to demonstrate their safety and efficacy in humans. Clinical testing is expensive, difficult 
to design and implement, can take many years to complete, and is uncertain as to outcome. A failure of one or more clinical trials can occur at any stage of 
testing. The outcome of preclinical studies and early clinical trials may not be predictive of the success of later clinical trials, and interim results of a 
clinical trial do not necessarily predict final results. 

Moreover, preclinical and clinical data are often susceptible to varying interpretations and analyses. Many companies that have believed their product 
candidates performed satisfactorily in preclinical studies and clinical trials have nonetheless failed to obtain marketing approval of their product candidates. 

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We and our collaborators may experience numerous unforeseen events during, or as a result of, clinical trials that could delay or prevent our ability to 
receive marketing approval or commercialize any product candidates we identify and develop, including:

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delays in reaching a consensus with regulators on trial design and endpoints; 

regulators, institutional review boards, or IRBs, or independent ethics committees may not authorize us or our investigators to commence a 
clinical trial or conduct a clinical trial at a prospective trial site; 

delays in reaching or failing to reach agreement on acceptable clinical trial contracts or clinical trial protocols with prospective CROs and 
clinical trial sites; 

clinical trials of any product candidates we may develop may produce negative or inconclusive results, and we may decide, or regulators may 
require us, to conduct additional clinical trials or abandon product development or research programs; 

difficulty in designing well-controlled clinical trials due to ethical considerations which may render it inappropriate to conduct a trial with a 
control arm that can be effectively compared to a treatment arm; 

difficulty in designing clinical trials and selecting endpoints for diseases that have not been well-studied and for which the natural history and 
course of the disease is poorly understood; 

the number of patients required for clinical trials of any product candidates we develop may be larger than we anticipate; enrollment of 
suitable participants in these clinical trials, which may be particularly challenging for some of the rare genetically defined diseases we are 
targeting in our most advanced programs, may be delayed or slower than we anticipate; or patients may drop out of these clinical trials at a 
higher rate than we anticipate; 

our third-party contractors may fail to comply with regulatory requirements or meet their contractual obligations to us in a timely manner, or 
at all; 

regulators, IRBs, or independent ethics committees may require that we or our investigators suspend or terminate clinical research or clinical 
trials of any product candidates we develop for various reasons, including noncompliance with regulatory requirements, a finding of 
undesirable side effects or other unexpected characteristics, or that the participants are being exposed to unacceptable health risks or after an 
inspection of our clinical trial operations or trial sites; 

the cost of clinical trials of any product candidates we may develop may be greater than we anticipate; 

the supply or quality of any product candidates we may develop or other materials necessary to conduct clinical trials of any product 
candidates we develop may be insufficient or inadequate, including as a result of delays in the testing, validation, manufacturing, and 
delivery of any product candidates we may develop to the clinical sites by us or by third parties with whom we have contracted to perform 
certain of those functions; 

delays in having patients complete participation in a trial or return for post-treatment follow-up;

clinical trial sites dropping out of a trial; 

selection of clinical endpoints that require prolonged periods of clinical observation or analysis of the resulting data; 

occurrence of serious adverse events associated with any product candidates we may develop that are viewed to outweigh their potential 
benefits; 

occurrence of serious adverse events in trials of the same class of agents conducted by other sponsors; 

disruption to the operations of the FDA; and 

changes in regulatory requirements and guidance that require amending or submitting new clinical protocols or otherwise complying with 
additional requirements. 

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If we or our collaborators are required to conduct additional clinical trials or other testing of any product candidates we develop beyond those that we 
currently contemplate, if we or our collaborators are unable to successfully complete clinical trials or other testing of any product candidates we develop, or 
if the results of these trials or tests are not positive or are only modestly positive or if there are safety concerns, we or our collaborators may: 

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be delayed in obtaining marketing approval for any such product candidates we may develop or not obtain marketing approval at all; 

obtain approval for indications or patient populations that are not as broad as intended or desired; 

obtain approval with labeling that includes significant use or distribution restrictions or safety warnings, including boxed warnings; 

be subject to changes in the way the product is administered; 

be required to perform additional clinical trials to support approval or be subject to additional post-marketing testing requirements; 

have regulatory authorities withdraw, or suspend, their approval of the product or impose restrictions on its distribution in the form of a 
REMS or through modification to an existing REMS; 

be sued; or 

experience damage to our reputation. 

Product development costs will also increase if we or our collaborators experience delays in clinical trials or other testing or in obtaining marketing 
approvals. We do not know whether any clinical trials will begin as planned, will need to be restructured, or will be completed on schedule, or at all. 
Significant clinical trial delays also could shorten any periods during which we may have the exclusive right to commercialize any product candidates we 
may develop, could allow our competitors to bring products to market before we do, and could impair our ability to successfully commercialize any 
product candidates we may develop, any of which may harm our business, financial condition, results of operations, and prospects. 

We may expend our limited resources to pursue a particular product candidate or indication and fail to capitalize on product candidates or indications 
that may be more profitable or for which there is a greater likelihood of success. 

Because we have limited financial, scientific and managerial resources, we focus on research programs and product candidates that we identify for specific 
indications among many potential options. As a result, we may forego or delay pursuit of opportunities with other product candidates or for other 
indications that later prove to have greater commercial potential. Our resource allocation decisions may cause us to fail to capitalize on viable commercial 
products or profitable market opportunities. Our spending on current and future research and development programs and product candidates for specific 
indications may not yield any commercially viable medicines. If we do not accurately evaluate the commercial potential or target market for a particular 
product candidate, we may relinquish valuable rights to that product candidate through collaboration, licensing, or other royalty arrangements in cases in 
which it would have been more advantageous for us to retain sole development and commercialization rights to such product candidate. Any such event 
could have a material adverse effect on our business, financial condition, results of operations, and prospects. 

We may conduct clinical trials at sites outside the United States. The FDA may not accept data from trials conducted in such locations, and the conduct 
of trials outside the United States could subject us to additional delays and expense. 

We may conduct one or more clinical trials with one or more trial sites that are located outside the United States. Although the FDA may accept data from 
clinical trials conducted outside the United States, acceptance of these data is subject to conditions imposed by the FDA. For example, the clinical trial 
must be well designed and conducted and be performed by qualified investigators in accordance with ethical principles. The FDA must be able to validate 
the data from the trial through an onsite inspection, if necessary. The trial population must also adequately represent the U.S. population, and the data must 
be applicable to the U.S. population and U.S. medical practice in ways that the FDA deems clinically meaningful. In addition, while these clinical trials are 
subject to the applicable local laws, whether the FDA accepts the data will depend on its determination that the trials also complied with all applicable U.S. 
laws and regulations. There can be no assurance that the FDA will accept data from trials conducted outside of the United States. If the FDA does not 
accept the data from any trial that we conduct outside the United States, it would likely result in the need for additional trials, which would be costly and 
time-consuming and could delay or permanently halt our development of the applicable product candidates. 

In addition, conducting clinical trials outside the United States could have a significant adverse impact on us. Risks inherent in conducting international 
clinical trials include: 

•

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clinical practice patterns and standards of care that vary widely among countries; 

non-U.S. regulatory authority requirements that could restrict or limit our ability to conduct our clinical trials; 

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administrative burdens of conducting clinical trials under multiple non-U.S. regulatory authority schema; 

foreign exchange fluctuations; and 

diminished protection of intellectual property in some countries.

Even if we complete the necessary clinical trials, we cannot predict when, or if, we will obtain regulatory approval to commercialize a product 
candidate we develop in the United States or any other jurisdiction, and any such approval may be for a more narrow indication than we seek. 

We cannot commercialize a product candidate until the appropriate regulatory authorities have reviewed and approved the product candidate. Even if any 
product candidates we may develop meet their safety and efficacy endpoints in clinical trials, the regulatory authorities may not complete their review 
processes in a timely manner, or we may not be able to obtain regulatory approval. Additional delays may result if an FDA Advisory Committee or other 
regulatory authority recommends non-approval or restrictions on approval. In addition, we may experience delays or rejections based upon additional 
government regulation from future legislation or administrative action, or changes in regulatory authority policy during the period of product development, 
clinical trials, and the review process.

Regulatory authorities also may approve a product candidate for more limited indications than requested or they may impose significant limitations in the 
form of narrow indications, warnings or a REMS. These regulatory authorities may require labeling that includes precautions or contra-indications with 
respect to conditions of use, or they may grant approval subject to the performance of costly post-marketing clinical trials. In addition, regulatory 
authorities may not approve the labeling claims that are necessary or desirable for the successful commercialization of any product candidates we may 
develop. Any of the foregoing scenarios could materially harm the commercial prospects for any product candidates we may develop and materially 
adversely affect our business, financial condition, results of operations, and prospects.

Marketing approval by the FDA in the United States, if obtained, does not ensure approval by regulatory authorities in other countries or jurisdictions. In 
addition, clinical trials conducted in one country may not be accepted by regulatory authorities in other countries, and regulatory approval in one country 
does not guarantee regulatory approval in any other country. Approval processes vary among countries and can involve additional product candidate testing 
and validation and additional administrative review periods. Seeking foreign regulatory approval could result in difficulties and costs for us and require 
additional preclinical studies or clinical trials which could be costly and time-consuming. Regulatory requirements can vary widely from country to country 
and could delay or prevent the introduction of our product candidates we may develop in those countries. The foreign regulatory approval process involves 
all of the risks associated with FDA approval. We do not have any product candidates approved for sale in any jurisdiction, including international markets, 
and we do not have experience in obtaining regulatory approval in international markets. If we fail to comply with regulatory requirements in international 
markets or to obtain and maintain required approvals, or if regulatory approvals in international markets are delayed, our target market will be reduced and 
our ability to realize the full market potential of our product candidates will be unrealized.

Even if any product candidates we may develop receive marketing approval, they may fail to achieve the degree of market acceptance by physicians, 
patients, healthcare payors, and others in the medical community necessary for commercial success. 

The commercial success of any of our product candidates we may develop will depend upon its degree of market acceptance by physicians, patients, third-
party payors, and others in the medical community. Ethical, social, and legal concerns about genetic medicines generally and base editing technologies 
specifically could result in additional regulations restricting or prohibiting the marketing of our product candidates we may develop. Even if any product 
candidates we may develop receive marketing approval, they may nonetheless fail to gain sufficient market acceptance by physicians, patients, healthcare 
payors, and others in the medical community. The degree of market acceptance of any product candidates we may develop, if approved for commercial 
sale, will depend on a number of factors, including:

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the efficacy and safety of such product candidates as demonstrated in clinical trials; 

the potential and perceived advantages compared to alternative treatments; 

the limitation to our targeted patient population and limitations or warnings contained in approved labeling by the FDA or other regulatory 
authorities; 

the ability to offer our medicines for sale at competitive prices; 

convenience and ease of administration compared to alternative treatments; 

the clinical indications for which the product candidate is approved by the FDA, the EMA, or other regulatory agencies; 

public attitudes regarding genetic medicine generally and gene editing and base editing technologies specifically; 

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the willingness of the target patient population to try novel therapies and of physicians to prescribe these therapies, as well as their 
willingness to accept a therapeutic intervention that involves the editing of the patient’s gene; 

product labeling or product insert requirements of the FDA, the EMA, or other regulatory authorities, including any limitations or warnings 
contained in a product’s approved labeling; 

relative convenience and ease of administration; 

the timing of market introduction of competitive products;

publicity concerning our products or competing products and treatments; 

the strength of marketing and distribution support; 

sufficient third-party coverage or reimbursement; and 

the prevalence and severity of any side effects. 

Even if any of our product candidates we may develop are approved, such products may not achieve an adequate level of acceptance, we may not generate 
significant product revenues, and we may not become profitable.

If, in the future, we are unable to establish sales and marketing capabilities or enter into agreements with third parties to sell and market any product 
candidates we may develop, we may not be successful in commercializing those product candidates if and when they are approved. 

We do not have a sales or marketing infrastructure and do not have experience in the sale, marketing, or distribution of pharmaceutical products. To achieve 
commercial success for any approved medicine for which we retain sales and marketing responsibilities, we must either develop a sales and marketing 
organization or outsource these functions to third parties. In the future, we may choose to build a focused sales, marketing, and commercial support 
infrastructure to sell, or participate in sales activities with our collaborators for, some of our product candidates we develop if and when they are approved. 

There are risks involved with both establishing our own commercial capabilities and entering into arrangements with third parties to perform these services. 
For example, recruiting and training a sales force or reimbursement specialists is expensive and time consuming and could delay any product launch. If the 
commercial launch of a product candidate for which we recruit a sales force and establish marketing and other commercialization capabilities is delayed or 
does not occur for any reason, we would have prematurely or unnecessarily incurred these commercialization expenses. This may be costly, and our 
investment would be lost if we cannot retain or reposition our commercialization personnel. 

Factors that may inhibit our efforts to commercialize our product candidates we may develop on our own include: 

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our inability to recruit and retain adequate numbers of effective sales, marketing, reimbursement, customer service, medical affairs, and other 
support personnel; 

the inability of sales personnel to obtain access to physicians or persuade adequate numbers of physicians to prescribe any future medicines; 

the inability of reimbursement professionals to negotiate arrangements for formulary access, reimbursement, and other acceptance by payors; 

restricted or closed distribution channels that make it difficult to distribute our product candidates we may develop to segments of the patient 
population; 

the lack of complementary medicines to be offered by sales personnel, which may put us at a competitive disadvantage relative to companies 
with more extensive product lines; and 

unforeseen costs and expenses associated with creating an independent commercialization organization. 

If we enter into arrangements with third parties to perform sales, marketing, commercial support, and distribution services, our product revenues or the 
profitability of these product revenues to us may be lower than if we were to market and sell any medicines we may develop ourselves. In addition, we may 
not be successful in entering into arrangements with third parties to commercialize our product candidates we may develop or may be unable to do so on 
terms that are favorable to us. We may have little control over such third parties, and any of them may fail to devote the necessary resources and attention 
to sell and market our medicines effectively. If we do not establish commercialization capabilities successfully, either on our own or in collaboration with 
third parties, we will not be successful in commercializing our product candidates we may develop. 

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We face significant competition in an environment of rapid technological change, and there is a possibility that our competitors may achieve regulatory 
approval before us or develop therapies that are safer or more advanced or effective than ours, which may harm our financial condition and our ability 
to successfully market or commercialize any product candidates we may develop.

The development and commercialization of new drug products is highly competitive. Moreover, the base editing and delivery technology fields are 
characterized by rapidly changing technologies, significant competition, and a strong emphasis on intellectual property. We will face competition with 
respect to any product candidates that we may seek to develop or commercialize in the future from major pharmaceutical companies, specialty 
pharmaceutical companies, and biotechnology companies worldwide. Potential competitors also include academic institutions, government agencies, and 
other public and private research organizations that conduct research, seek patent protection, and establish collaborative arrangements for research, 
development, manufacturing, and commercialization.

There are a number of large pharmaceutical and biotechnology companies that currently market and sell products or are pursuing the development of 
products for the treatment of the disease indications for which we have research programs. Some of these competitive products and therapies are based on 
scientific approaches that are the same as or similar to our approach, and others are based on entirely different approaches.

There are several other companies utilizing CRISPR/Cas9 nuclease technology, including Caribou Biosciences, Editas Medicine, CRISPR Therapeutics, 
Intellia Therapeutics, Arbor Biotechnologies, Metagenomi, and Mammoth Biosciences. Several additional companies utilize other nuclease-based gene 
editing technologies, including Zinc Fingers, Arcuses, and TAL Nucleases, which includes Sangamo Biosciences, Precision BioSciences, bluebird bio, 
Allogene Therapeutics, and Cellectis. Additionally, newer gene editing modalities are emerging, including from Prime Medicine, Tessera Therapeutics, 
Shape Therapeutics, Scribe Therapeutics, Korro Bio, Tome Biosciences, PerkinElmer (formerly Horizon Discovery) and Intellia Therapeutics. 
PerkinElmer, Metagenomi and Intellia Therapeutics are developing base editing technology and Tessera Therapeutics is utilizing mobile genetic elements 
for gene editing. In addition, we face competition from companies utilizing various gene therapy, epigenetic modulation, oligonucleotide, and CAR-T 
therapeutic approaches.

Any product candidates that we successfully develop and commercialize will compete with existing therapies and new therapies that may become available 
in the future that are approved to treat the same diseases for which we may obtain approval for our product candidates we may develop. This may include 
other types of therapies, such as small molecule, antibody, and/or protein therapies.

Many of our current or potential competitors, either alone or with their collaboration partners, may have significantly greater financial resources and 
expertise in research and development, manufacturing, preclinical testing, conducting clinical trials, obtaining regulatory approvals, and marketing 
approved products than we do. Mergers and acquisitions in the pharmaceutical, biotechnology, and gene therapy industries may result in even more 
resources being concentrated among a smaller number of our competitors. Smaller or early-stage companies may also prove to be significant competitors, 
particularly through collaborative arrangements with large and established companies. These competitors also compete with us in recruiting and retaining 
qualified scientific and management personnel and establishing clinical trial sites and patient registration for clinical trials, as well as in acquiring 
technologies complementary to, or necessary for, our programs. Our commercial opportunity could be reduced or eliminated if our competitors develop and 
commercialize product candidates that are safer, more effective, have fewer or less severe side effects, are more convenient, or are less expensive than any 
product candidates that we may develop or that would render any product candidates that we may develop obsolete or non-competitive. Our competitors 
also may obtain FDA or other regulatory approval for their product candidates more rapidly than we may obtain approval for ours, which could result in 
our competitors establishing a strong market position before we are able to enter the market. Additionally, technologies developed by our competitors may 
render our potential product candidates uneconomical or obsolete, and we may not be successful in marketing any product candidates we may develop 
against competitors.

In addition, as a result of the expiration or successful challenge of our patent rights, we could face more litigation with respect to the validity and/or scope 
of patents relating to our competitors’ products. The availability of our competitors’ products could limit the demand, and the price we are able to charge, 
for any product candidates that we may develop and commercialize. 

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Adverse public perception of genetic medicines, and gene editing and base editing in particular, may negatively impact regulatory approval of, and/or 
demand for, our potential products. 

Our potential therapeutic products involve editing the human genome. The clinical and commercial success of our potential products will depend in part on 
public understanding and acceptance of the use of gene editing therapy for the prevention or treatment of human diseases. Public attitudes may be 
influenced by claims that gene editing is unsafe, unethical, or immoral, and, consequently, our product candidates may not gain the acceptance of the public 
or the medical community. For example, a public backlash developed against gene therapy following the death of a patient in 1999 during a gene therapy 
clinical trial. The death of the clinical trial subject was due to complications related to AAV vector administration. In addition, in 2020, three patients in 
Audentes Therapeutics’ clinical trial investigating AT132 (a gene therapy product candidate which was being delivered via AAV administration) for X-
linked myotubular myopathy (XLMTM) died. The immediate cause of death in two cases was sepsis and in a third case was gastrointestinal bleeding, each 
of which followed progressive liver dysfunction that occurred within the first 4-6 weeks following AT132 dosing, and which did not respond to standard 
treatment. Adverse public attitudes may adversely impact our ability to enroll clinical trials. Moreover, our success will depend upon physicians 
prescribing, and their patients being willing to receive, treatments that involve the use of product candidates we may develop in lieu of, or in addition to, 
existing treatments with which they are already familiar and for which greater clinical data may be available. 

In addition, gene editing technology is subject to public debate and heightened regulatory scrutiny due to ethical concerns relating to the application of gene
editing technology to human embryos or the human germline. For example, academic scientists in several countries, including the United States, have 
reported on their attempts to edit the gene of human embryos as part of basic research. In addition, in November 2018, Dr. Jiankui He, a Chinese biophysics 
researcher who was an associate professor in the Department of Biology of the Southern University of Science and Technology in Shenzhen, China, 
reportedly claimed he had created the first human genetically edited babies, twin girls. This claim, and another that Dr. He had helped create a second gene-
edited pregnancy, was subsequently confirmed by Chinese authorities and was negatively received by the public, in particular those in the scientific 
community. In the wake of the claim, the World Health Organization established a new advisory committee to create global governance and oversight 
standards for human gene editing and announced plans for a new global registry to track research on human gene editing. The Alliance for Regenerative 
Medicine also released principles for the use of gene editing in therapeutic applications endorsed by a number of companies that use gene editing 
technologies.

Regulation of gene editing technology varies across jurisdictions. In the United States, germline editing for clinical application has been expressly 
prohibited since enactment of a December 2015 FDA ban on such activity. Prohibitions are also in place in the U.K., across most of Europe, in China, and 
many other countries around the world. In the United States, the NIH has announced that the agency would not fund any use of gene editing technologies in 
human embryos, noting that there are multiple existing legislative and regulatory prohibitions against such work, including the Dickey-Wicker 
Amendment, which prohibits the use of appropriated funds for the creation of human embryos for research purposes or for research in which human 
embryos are destroyed. Laws in the U.K. prohibit genetically modified embryos from being implanted into women, except that mitochondrial replacement 
therapy has been permitted in the U.K. since 2016. Separately, embryos can be altered in the U.K. in research labs under license from the Human 
Fertilisation and Embryology Authority. Research on embryos is more tightly controlled in some other European countries. 

Moreover, in an annual worldwide threat assessment report delivered to the U.S. Congress in February 2016, the U.S. Director of National Intelligence 
stated that research into gene editing that is conducted under different regulatory standards than those of Western countries probably increases the risk of 
the creation of potentially harmful biological agents or products, including weapons of mass destruction. He noted that given the broad distribution, low 
cost, and accelerated pace of development of gene editing technology, its deliberate or unintentional misuse could have far-reaching economic and national 
security implications. 

Although we do not use our technologies to edit human embryos or the human germline, such public debate about the use of gene editing technologies in 
human embryos and heightened regulatory scrutiny could prevent or delay our development of product candidates. More restrictive government regulations 
or negative public opinion would have a negative effect on our business or financial condition and may delay or impair our development and 
commercialization of product candidates or demand for any product candidates we may develop. Adverse events in our preclinical studies or clinical trials 
or those of our competitors or of academic researchers utilizing gene editing technologies, even if not ultimately attributable to product candidates we may 
identify and develop, and the gene publicity could result in increased governmental regulation, unfavorable public perception, potential regulatory delays in 
the testing or approval of potential product candidates we may identify and develop, stricter labeling requirements for those product candidates that are 
approved, and a decrease in demand for any such product candidates. Use of gene editing technology by a third party or government to develop biological 
agents or products that threaten U.S. national security could similarly result in such negative impacts to us. 

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Even if we are able to commercialize any product candidates, such products may become subject to unfavorable pricing regulations, third-party 
reimbursement practices, or healthcare reform initiatives, which would harm our business. 

The regulations that govern marketing approvals, pricing, and reimbursement for new medicines vary widely from country to country. Some countries 
require approval of the sale price of a medicine before it can be marketed. In many countries, the pricing review period begins after marketing or product 
licensing approval is granted. In some foreign markets, prescription pharmaceutical pricing remains subject to continuing governmental control even after 
initial approval is granted. As a result, we might obtain marketing approval for a medicine in a particular country, but then be subject to price regulations 
that delay or might even prevent our commercial launch of the medicine, possibly for lengthy time periods, and negatively impact the revenues we are able 
to generate from the sale of the medicine in that country. Adverse pricing limitations may hinder our ability to recoup our investment in one or more 
product candidates we may develop, even if any product candidates we may develop obtain marketing approval. 

Our ability to commercialize any medicines successfully also will depend in part on the extent to which reimbursement for these medicines and related 
treatments will be available from government authorities or healthcare program, private health plans, and other organizations. Government authorities and 
third-party payors, such as private health plans, decide which medications they will pay for and establish reimbursement levels. A primary trend in the U.S. 
healthcare industry and elsewhere is cost containment. Government authorities and third-party payors have attempted to control costs by limiting coverage 
and the amount of reimbursement for particular medications. For example, the Inflation Reduction Act of 2022, or IRA was recently signed into law. The 
IRA includes several provisions that may impact our business, including provisions that impose new manufacturer financial liability on all drugs in 
Medicare Part D, allow the U.S. government to negotiate Medicare Part B and Part D pricing for certain high-cost drugs and biologics without generic or 
biosimilar competition, require companies to pay rebates to Medicare for drug prices that increase faster than inflation, and delay the rebate rule that would 
require pass through of pharmacy benefit manager rebates to beneficiaries. We cannot yet predict the effect the IRA will have on our business and the 
healthcare industry in general.

Increasingly, third-party payors are also challenging the prices charged for medical products and requiring that drug companies provide them with 
predetermined discounts from list prices. Novel medical products, if covered at all, may be subject to enhanced utilization management controls designed to
ensure that the products are used only when medically necessary. Such utilization management controls may discourage the prescription or use of a medical 
product by increasing the administrative burden associated with its prescription or creating coverage uncertainties for prescribers and patients. We cannot 
be sure that reimbursement will be available for any medicine that we commercialize and, if reimbursement is available, that the level of reimbursement 
will be adequate. Reimbursement may impact the demand for, or the price of, any product candidate for which we obtain marketing approval. If 
reimbursement is not available or is available only to limited levels, we may not be able to successfully commercialize any product candidate for which we 
obtain marketing approval. 

There may be significant delays in obtaining reimbursement for newly approved medicines, and coverage may be more limited than the purposes for which 
the medicine is approved by the FDA, the EMA or other regulatory authorities outside the United States. Moreover, eligibility for reimbursement does not 
imply that any medicine will be paid for in all cases or at a rate that covers our costs, including research, development, manufacture, sale, and distribution. 
Interim reimbursement levels for new medicines, if applicable, may also not be sufficient to cover our costs and may not be made permanent. 
Reimbursement rates may vary according to the use of the medicine and the clinical setting in which it is used, may be based on reimbursement levels 
already set for lower cost medicines and may be incorporated into existing payments for other services. Net prices for medicines may be reduced by 
mandatory discounts or rebates required by government healthcare programs or private payors and by any future relaxation of laws that presently restrict 
imports of medicines from countries where they may be sold at lower prices than in the United States. Our inability to promptly obtain coverage and 
profitable payment rates from both government-funded and private payors for any approved medicines we may develop could have a material adverse 
effect on our operating results, our ability to raise capital needed to commercialize medicines, and our overall financial condition. 

Due to the novel nature of our technology and the potential for any product candidates we may develop to offer therapeutic benefit in a single 
administration or limited number of administrations, we face uncertainty related to pricing and reimbursement for these product candidates. 

Our initial target patient populations are relatively small, as a result of which the pricing and reimbursement of any product candidates we may develop, if 
approved, must be adequate to support the necessary commercial infrastructure. If we are unable to obtain adequate levels of reimbursement, our ability to 
successfully market and sell any such product candidates will be adversely affected. The manner and level at which reimbursement is provided for services 
related to any product candidates we may develop (e.g., for administration of our product candidate to patients) is also important. Inadequate 
reimbursement for such services may lead to physician and payor resistance and adversely affect our ability to market or sell our product candidates we 
may develop. In addition, we may need to develop new reimbursement models in order to realize adequate value. Payors may not be able or willing to 
adopt such new models, and patients may be unable to afford that portion of the cost that such models may require them to bear. If we determine such new 
models are necessary but we are unsuccessful in developing them, or if such models are not adopted by payors, our business, financial condition, results of 
operations, and prospects could be adversely affected. 

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We expect the cost of a single administration of genetic medicines, such as those we are seeking to develop, to be substantial, when and if they achieve 
regulatory approval. We expect that coverage and reimbursement by government and private payors will be essential for most patients to be able to afford 
these treatments. Accordingly, sales of any such product candidates will depend substantially, both domestically and abroad, on the extent to which the 
costs of any product candidates we may develop will be paid by government authorities, private health plans, and other third-party payors. Payors may not 
be willing to pay high prices for a single administration. Coverage and reimbursement by a third-party payor may depend upon several factors, including 
the third-party payor’s determination that use of a product is: 

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a covered benefit under its health plan; 

safe, effective, and medically necessary; 

appropriate for the specific patient; 

cost-effective; and 

neither experimental nor investigational. 

Obtaining coverage and reimbursement for a product from third-party payors is a time-consuming and costly process that could require us to provide to the 
payor supporting scientific, clinical, and cost-effectiveness data. There is significant uncertainty related to third-party coverage and reimbursement of 
newly approved products. We may not be able to provide data sufficient to gain acceptance with respect to coverage and reimbursement. If coverage and 
reimbursement are not available, or are available only at limited levels, we may not be able to successfully commercialize any product candidates we may 
develop. Even if coverage is provided, the approved reimbursement amount may not be adequate to realize a sufficient return on our investment. 

Moreover, the downward pressure on healthcare costs in general, particularly prescription drugs and surgical procedures and other treatments, has become 
intense. As a result, increasingly high barriers are being erected to the entry of new product candidates such as ours. If we are unable to obtain adequate 
levels of reimbursement, our ability to successfully market and sell any product candidates we may develop will be harmed. 

If the market opportunities for any product candidates we may develop are smaller than we believe they are, our potential revenues may be adversely 
affected, and our business may suffer. Because the target patient populations for many of the product candidates we may develop are small, we must be 
able to successfully identify patients and achieve a significant market share to maintain profitability and growth. 

We focus our research and product development on treatments for rare genetically defined diseases. Many of our product candidates we may develop are 
expected to target a single mutation; as a result, the relevant patient population may therefore be small. Our projections of both the number of people who 
have these diseases, as well as the subset of people with these diseases who have the potential to benefit from treatment with product candidates we may 
develop, are based on estimates. These estimates may prove to be incorrect and new studies may change the estimated incidence or prevalence of these 
diseases. The number of patients in the United States, Europe, and elsewhere may turn out to be lower than expected, and patients may not be amenable to 
treatment with our product candidates we may develop, or may become increasingly difficult to identify or gain access to, all of which would adversely 
affect our business, financial condition, results of operations, and prospects. Additionally, because of the potential that any product candidates we develop 
could cure a target disease, we may not receive recurring revenues from patients and may deplete the patient population prevalence through curative 
therapy. 

If we are unable to successfully identify patients who are likely to benefit from therapy with any product candidates we develop, or experience 
significant delays in doing so, we may not realize the full commercial potential of any medicines we may develop. 

Our success may depend, in part, on our ability to identify patients who are likely to benefit from therapy with any medicines we may develop, which 
requires those potential patients to have their DNA analyzed for the presence or absence of a particular sequence. If we, or any third parties that we engage 
to assist us, are unable to successfully identify such patients, or experience delays in doing so, then: 

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our ability to develop any product candidates may be adversely affected if we are unable to appropriately select patients for enrollment in our 
clinical trials; and 

we may not realize the full commercial potential of any product candidates we develop that receive marketing approval if, among other 
reasons, we are unable to appropriately select patients who are likely to benefit from therapy with our medicines. 

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Any product candidates we develop may require use of a companion diagnostic to identify patients who are likely to benefit from therapy. If safe and 
effective use of any of our product candidates we may develop depends on a companion diagnostic, we may not receive marketing approval, or marketing 
approval may be delayed, if we are unable to or are delayed in developing, identifying, or obtaining regulatory approval or clearance for the companion 
diagnostic product for use with our product candidate. Identifying a manufacturer of the companion diagnostic and entering into an agreement with the 
manufacturer could also delay the development of our product candidates. 

As a result of these factors, we may be unable to successfully develop and realize the commercial potential of any product candidates we may identify and 
develop, and our business, financial condition, results of operations, and prospects would be materially adversely affected. 

Product liability lawsuits against us could cause us to incur substantial liabilities and could limit commercialization of any medicines that we may 
develop. 

We face an inherent risk of product liability exposure related to the testing in human clinical trials of any product candidates we may develop and will face 
an even greater risk if we commercially sell any medicines that we may develop. If we cannot successfully defend ourselves against claims that our product 
candidates or medicines caused injuries, we could incur substantial liabilities. Regardless of merit or eventual outcome, liability claims may result in: 

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decreased demand for any product candidates or medicines that we may develop; 

injury to our reputation and significant negative media attention; 

withdrawal of clinical trial participants; 

significant time and costs to defend the related litigation; 

substantial monetary awards to trial participants or patients; 

loss of revenue; and 

the inability to commercialize any medicines that we may develop. 

Although we maintain product liability insurance coverage, it may not be adequate to cover all liabilities that we may incur. We anticipate that we will need 
to increase our insurance coverage when we begin clinical trials and if we successfully commercialize any medicine. Insurance coverage is increasingly 
expensive. We may not be able to maintain insurance coverage at a reasonable cost or in an amount adequate to satisfy any liability that may arise. 

If we or any CMOs and suppliers we engage fail to comply with environmental, health, and safety laws and regulations, we could become subject to 
fines or penalties or incur costs that could have a material adverse effect on the success of our business. 

We and any CMOs and suppliers we engage are subject to numerous federal, state, and local environmental, health, and safety laws, regulations, and 
permitting requirements, including those governing laboratory procedures; the generation, handling, use, storage, treatment, and disposal of hazardous and 
regulated materials and wastes; the emission and discharge of hazardous materials into the ground, air, and water; and employee health and safety. Our 
operations involve the use of hazardous and flammable materials, including chemicals and biological and radioactive materials. Our operations also 
produce hazardous waste. We generally contract with third parties for the disposal of these materials and wastes. We cannot eliminate the risk of 
contamination or injury from these materials. In the event of contamination or injury resulting from our use of hazardous materials, we could be held liable 
for any resulting damages, and any liability could exceed our resources. Under certain environmental laws, we could be held responsible for costs relating 
to any contamination at our current or past facilities and at third-party facilities. We also could incur significant costs associated with civil or criminal fines 
and penalties. 

Compliance with applicable environmental laws and regulations may be expensive, and current or future environmental laws and regulations may impair 
our research and product development efforts. In addition, we cannot entirely eliminate the risk of accidental injury or contamination from these materials 
or wastes. Although we maintain workers’ compensation insurance to cover us for costs and expenses, we may incur due to injuries to our employees 
resulting from the use of hazardous materials, this insurance may not provide adequate coverage against potential liabilities. Further, while we carry 
biological or hazardous waste insurance coverage, such insurance coverage may not be adequate to cover losses, and our property, casualty, and general 
liability insurance policies specifically exclude coverage for damages and fines arising from biological or hazardous waste exposure or contamination. 
Accordingly, in the event of contamination or injury, we could be held liable for damages or be penalized with fines in an amount exceeding our resources, 
and our clinical trials or regulatory approvals could be suspended, which could have a material adverse effect on our business, financial condition, results of 
operations, and prospects. 

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In addition, we may incur substantial costs in order to comply with current or future environmental, health, and safety laws, regulations, and permitting 
requirements. These current or future laws, regulations, and permitting requirements may impair our research, development, or production efforts. Failure 
to comply with these laws, regulations, and permitting requirements also may result in substantial fines, penalties, or other sanctions or business disruption, 
which could have a material adverse effect on our business, financial condition, results of operations, and prospects. 

Any third-party contract manufacturers and suppliers we engage will also be subject to these and other environmental, health, and safety laws and 
regulations. Liabilities they incur pursuant to these laws and regulations could result in significant costs or an interruption in operations, which could have a 
material adverse effect on our business, financial condition, results of operations, and prospects. 

Genetic medicines are novel, and any product candidates we develop may be complex and difficult to manufacture. We could experience delays in 
satisfying regulatory authorities or production problems that result in delays in our development or commercialization programs, limit the supply of our 
product candidates we may develop, or otherwise harm our business. 

Any product candidates we may develop will likely require processing steps that are more complex than those required for most chemical pharmaceuticals. 
Moreover, unlike chemical pharmaceuticals, the physical and chemical properties of a biologic such as the product candidates we intend to develop 
generally cannot be fully characterized. As a result, assays of the finished product candidate may not be sufficient to ensure that the product candidate will 
perform in the intended manner. Problems with the manufacturing process, even minor deviations from the normal process, could result in product defects 
or manufacturing failures that result in lot failures, product recalls, product liability claims, insufficient inventory, or potentially delay progression of our 
potential IND filings. If we successfully develop product candidates, we may encounter problems achieving adequate quantities and quality of clinical-
grade materials that meet FDA, EMA or other comparable applicable foreign standards or specifications with consistent and acceptable production yields 
and costs. For example, the current approach of manufacturing AAV vectors may fall short of supplying required number of doses needed for advanced 
stages of preclinical studies or clinical trials, and the FDA may ask us to demonstrate that we have the appropriate manufacturing processes in place to 
support the higher-dose group in our future preclinical studies or clinical trials. In addition, our product candidates we may develop will require 
complicated delivery modalities, such as electroporation, LNPs, or viral vectors, each of which will introduce additional complexities in the manufacturing 
process. 

In addition, the FDA, the EMA, and other regulatory authorities may require us to submit samples of any lot of any approved product together with the 
protocols showing the results of applicable tests at any time. Under some circumstances, the FDA, the EMA, or other regulatory authorities may require 
that we not distribute a lot until the agency authorizes its release. Slight deviations in the manufacturing process, including those affecting quality attributes 
and stability, may result in unacceptable changes in the product that could result in lot failures or product recalls. Lot failures or product recalls could cause 
us to delay clinical trials or product launches, which could be costly to us and otherwise harm our business, financial condition, results of operations, and 
prospects. 

Furthermore, we intend to use novel viral technologies to deliver the base editor and guide RNA constructs of product candidates, however scientific 
evidence to support the feasibility of developing product candidates based on these technologies is both preliminary and limited. 

We also may encounter problems hiring and retaining the experienced scientific, quality control, and manufacturing personnel needed to manage our 
manufacturing process, which could result in delays in our production or difficulties in maintaining compliance with applicable regulatory requirements. 

Given the nature of biologics manufacturing, there is a risk of contamination during manufacturing. Any contamination could materially harm our ability to 
produce product candidates on schedule and could harm our results of operations and cause reputational damage. Some of the raw materials that we 
anticipate will be required in our manufacturing process are derived from biologic sources. Such raw materials are difficult to procure and may be subject 
to contamination or recall. A material shortage, contamination, recall, or restriction on the use of biologically derived substances in the manufacture of any 
product candidates we may develop could adversely impact or disrupt the commercial manufacturing or the production of clinical material, which could 
materially harm our development timelines and our business, financial condition, results of operations, and prospects. 

Any problems in our manufacturing process or the facilities with which we contract could make us a less attractive collaborator for potential partners, 
including larger pharmaceutical companies and academic research institutions, which could limit our access to additional attractive development programs. 
Problems in third-party manufacturing process or facilities also could restrict our ability to ensure sufficient clinical material for any clinical trials we may 
be conducting or are planning to conduct and meet market demand for any product candidates we develop and commercialize. 

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Risks related to our relationships with third parties 

We rely on and expect to continue to rely on third parties to manufacture components of our product candidates we may develop, conduct our clinical 
trials and some aspects of our research and preclinical testing, and those third parties may not perform satisfactorily, including failing to meet 
deadlines for the completion of such trials, research, or testing. 

We rely on and expect to continue to rely on third parties, such as CMOs, CROs, clinical data management organizations, medical institutions, and clinical 
investigators, to conduct some aspects of our research and preclinical testing, to manufacture components of our product candidates and to conduct our 
clinical trials. Any of these third parties may terminate their engagements with us at any time under certain criteria. If we need to enter into alternative 
arrangements, it may delay our product development activities. 

Our reliance on these third parties for research and development activities reduces our control over these activities but does not relieve us of our 
responsibilities. For example, we remain responsible for ensuring that each of our clinical trials is conducted in accordance with the general investigational 
plan and protocols for the trial. Moreover, the FDA, EMA and other regulatory authorities require us to comply with standards, commonly referred to as 
Good Clinical Practices, for conducting, recording, and reporting the results of clinical trials to assure that data and reported results are credible and 
accurate and that the rights, integrity, and confidentiality of trial participants are protected. In the United States, we also are required to register ongoing 
clinical trials and post the results of completed clinical trials on a government-sponsored database, ClinicalTrials.gov, within certain timeframes. Failure to 
do so can result in fines, adverse publicity, and civil and criminal sanctions. 

Although we design the clinical trials for our product candidates, we rely on and expect to continue to rely on CROs to conduct some or all of the clinical 
trials. As a result, many important aspects of our development programs, including their conduct and timing, will be outside of our direct control. Our 
reliance on third parties to conduct preclinical studies and clinical trials also results in less direct control over the management of data developed through 
preclinical studies and clinical trials than would be the case if we were relying entirely upon our own staff. Communicating with outside parties can also be 
challenging, potentially leading to mistakes as well as difficulties in coordinating activities. Outside parties may: 

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have staffing difficulties; 

fail to comply with contractual obligations; 

experience regulatory compliance issues; 

undergo changes in priorities or become financially distressed; or 

form relationships with other entities, some of which may be our competitors. 

These factors may materially adversely affect the willingness or ability of third parties to conduct our preclinical studies and clinical trials and may subject 
us to unexpected cost increases that are beyond our control. If the CROs and other third parties do not perform preclinical studies and future clinical trials 
in a satisfactory manner, breach their obligations to us or fail to comply with regulatory requirements, the development, regulatory approval and 
commercialization of our product candidates may be delayed, we may not be able to obtain regulatory approval and commercialize our product candidates, 
or our development programs may be materially and irreversibly harmed. If we are unable to rely on preclinical and clinical data collected by our CROs 
and other third parties, we could be required to repeat, extend the duration of, or increase the size of any preclinical studies or clinical trials we conduct and 
this could significantly delay commercialization and require greater expenditures. 

We contract with third parties for the manufacture of materials for our research programs, preclinical studies and clinical trial and expect to continue 
to do so for at least a portion of the manufacturing process for our research programs, preclinical studies, clinical trials and for commercialization of 
any product candidates that we may develop. This reliance on third parties increases the risk that we will not have sufficient quantities of such 
materials, product candidates, or any medicines that we may develop and commercialize, or that such supply will not be available to us at an acceptable 
cost, which could delay, prevent, or impair our development or commercialization efforts. 

We currently rely on third-party manufacturers for the manufacture of our materials for preclinical studies and clinical trials, and may continue to do so for 
at least a portion of the manufacturing process for our research programs, preclinical studies, clinical testing and for commercial supply of any product 
candidates that we may develop and for which we or our collaborators obtain marketing approval. We do not have a long-term supply agreement with any 
of the third-party manufacturers, and we purchase our required supply on an order-by-order basis. 

While we have built a manufacturing facility designed to support manufacturing for our ex vivo cell therapy programs in hematology and oncology and in 
vivo non-viral delivery programs for liver diseases in Research Triangle Park, North Carolina, this facility is not yet capable of cGMP operations and we 
cannot be certain that we will be able to build out our internal manufacturing capacity, or on the timeliness we expect. 

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We may be unable to establish long-term supply agreements with third-party manufacturers or to do so on acceptable terms. Even if we are able to establish 
long-term supply agreements with third-party manufacturers, reliance on third-party manufacturers entails additional risks, including: 

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the possible breach of the manufacturing agreement by the third party; 

the possible termination or nonrenewal of the agreement by the third party at a time that is costly or inconvenient for us; 

reliance on the third party for regulatory compliance, quality assurance, safety, and pharmacovigilance and related reporting; and

the possible inability of third-party suppliers to supply and/or transport materials, components and products to us in a timely manner as a 
result of disruptions to the global supply chain in connection with the COVID-19 pandemic or other factors, or as a result of supply shortages 
in connection with large-scale production of COVID-19 vaccines. 

Third-party manufacturers may not be able to comply with cGMP regulations or similar regulatory requirements outside the United States. Our failure, or 
the failure of our third-party manufacturers, to comply with applicable regulations could result in sanctions being imposed on us, including fines, 
injunctions, civil penalties, delays, suspension or withdrawal of approvals, license revocations, seizures or recalls of product candidates or medicines, 
operating restrictions, and criminal prosecutions, any of which could significantly and adversely affect supplies of our medicines and harm our business, 
financial condition, results of operations, and prospects. 

Any medicines that we develop may compete with other product candidates and products for access to manufacturing facilities. There are a limited number 
of manufacturers that operate under cGMP regulations and that might be capable of manufacturing drug components and drug product necessary for gene 
editing. In addition, multiple third parties have contracted with commercial manufacturers to manufacture materials required for large-scale production of 
COVID-19 vaccines, including mRNA. If supply of mRNA is limited, we may not be able to obtain mRNA for use in our preclinical studies and clinical 
trials, which may result in research and development delays.

Any performance failure on the part of our existing or future manufacturers could delay clinical development or marketing approval. We do not currently 
have arrangements in place for redundant supply of all drug components and drug products necessary for our gene editing product candidates. If any one of 
our current contract manufacturers cannot perform as agreed, we may be required to replace that manufacturer. Although we believe that there are several 
potential alternative manufacturers who could manufacture any product candidates we may develop, we may incur added costs and delays in identifying 
and qualifying any such replacement. 

Our current and anticipated future dependence upon others for the manufacture of any product candidates we may develop may adversely affect our future 
profit margins and our ability to commercialize any medicines that receive marketing approval on a timely and competitive basis.

As our drug development pipeline increases and matures, the increased demand for clinical supplies from our facilities and third parties may impact 
our ability to operate. We will require increased capacity across our entire supply chain. Furthermore, we rely on many service providers, including 
those that provide manufacturing or testing services, all of whom have inherent risks in their operations that may adversely impact our operations.

Completion of our clinical trials and commercialization of our product candidates require access to, or development of, facilities to manufacture our 
product candidates at sufficient yields and, if approved, at commercial-scale. We have limited experience manufacturing any of our product candidates in 
the volumes that are necessary to support clinical trials or and no experience manufacturing at volumes that are necessary to support commercial sales. 
Efforts to establish these capabilities may not meet initial expectations as to scheduling, scale-up, reproducibility, yield, purity, cost, potency or quality. In 
addition, other companies, many with substantial resources, compete with us for access to the materials needed to manufacture our product candidates.

We currently utilize, and expect to continue to utilize, third parties to, among other things, manufacture raw materials, components, parts, and consumables, 
and to perform quality testing. If the field of base editing and other genetic medicines continues to expand, we may encounter increasing competition for 
these materials and services. Demand for third-party manufacturing or testing facilities may grow at a faster rate than their existing capacity, which could 
disrupt our ability to find and retain third-party manufacturers capable of producing sufficient quantities of such raw materials, components, parts, and 
consumables required to manufacture our product candidates. The use of service providers and suppliers could expose us to risks, including, but not limited 
to:

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termination or non-renewal of supply and service agreements with third parties in a manner or at a time that is costly or damaging to us;

disruptions to the operations of these suppliers and service providers caused by conditions unrelated to our business or operations, including 
the bankruptcy of the supplier or service provider; and

inspections of third-party facilities by regulatory authorities that could have a negative outcome and result in delays to or termination of their 
ability to supply our requirements.

Our reliance on third-party manufacturers may adversely affect our operations or result in unforeseen delays or other problems beyond our control. Because 
of contractual restraints and the limited number of third-party manufacturers with the expertise, required regulatory approvals and facilities to manufacture 
our product candidates on a clinical and, if approved, a commercial scale, replacement of a manufacturer may be expensive and time-consuming and may 
cause interruptions in the production of our product candidates. A third-party manufacturer may also encounter difficulties in production. These problems 
may include:

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difficulties with production costs, scale up and yields;

availability of raw materials and supplies;

quality control and assurance;

shortages of qualified personnel;

compliance with strictly enforced federal, state and foreign regulations that vary in each country where products might be sold; and

lack of capital funding.

As a result, any delay or interruption could have a material adverse effect on our business, financial condition, or results of operations.

We have and may in the future enter into collaborations with third parties for the research, development, and commercialization of certain of the 
product candidates we develop. If any such collaborations are not successful, we may not be able to capitalize on the market potential of those product 
candidates. 

We have and may in the future seek third-party collaborators for the research, development, and commercialization of certain of the product candidates we 
develop. Under the agreements we have entered into and any agreements we may enter into in the future with any third parties, we have and will likely 
have limited control over the amount and timing of resources that our collaborators dedicate to the development or commercialization of any product 
candidates we seek to develop with them. Our ability to generate revenues from these arrangements will depend on our collaborators’ abilities to 
successfully perform the functions assigned to them in these arrangements. We cannot predict the success of any collaboration that we enter into. 

Collaborations involving our research programs or any product candidates we may develop pose numerous risks to us, including the following: 

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Collaborators have significant discretion in determining the efforts and resources that they will apply to these collaborations. 

Collaborators may not pursue development and commercialization of any product candidates we develop or may elect not to continue or 
renew development or commercialization programs based on clinical trial results, changes in the collaborator’s strategic focus or available 
funding or external factors such as an acquisition that diverts resources or creates competing priorities. 

Collaborators may delay clinical trials, provide insufficient funding for a clinical trial program, stop a clinical trial or abandon a product 
candidate, repeat or conduct new clinical trials, or require a new formulation of a product candidate for clinical testing. 

Collaborators could independently develop, or develop with third parties, products that compete directly or indirectly with our medicines or 
product candidates we develop if the collaborators believe that competitive products are more likely to be successfully developed or can be 
commercialized under terms that are more economically attractive than ours. 

Collaborators with marketing and distribution rights to one or more medicines may not commit sufficient resources to the marketing and 
distribution of such medicine or medicines. 

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Collaborators may not properly obtain, maintain, enforce, or defend our intellectual property or proprietary rights or may use our proprietary 
information in such a way as to invite litigation that could jeopardize or invalidate our proprietary information or expose us to potential 
litigation. 

Disputes may arise between the collaborators and us that result in the delay or termination of the research, development, or 
commercialization of our medicines or product candidates or that result in costly litigation or arbitration that diverts management attention 
and resources. 

We may lose certain valuable rights under circumstances identified in our collaborations, including if we undergo a change of control. 

Collaborations may be terminated and, if terminated, may result in a need for additional capital to pursue further development or 
commercialization of the applicable product candidates we may develop. 

Collaboration agreements may not lead to development or commercialization of product candidates in the most efficient manner or at all. If a 
present or future collaborator of ours were to be involved in a business combination, the continued pursuit and emphasis on our product 
development or commercialization program under such collaboration could be delayed, diminished, or terminated. 

If our collaborations do not result in the successful development and commercialization of product candidates, or if one of our collaborators terminates its 
agreement with us, we may not receive any future research funding or milestone or royalty payments under the collaboration. Furthermore, even if we 
receive such payments, they will likely result in payment obligations under license agreements with our licensors, which could be substantial. If we do not 
receive the funding we expect under these collaboration agreements, or if the funding is substantially offset by payment obligations to our licensors, our 
development of product candidates could be delayed, and we may need additional resources to develop product candidates. In addition, if one of our 
collaborators terminates its agreement with us, we may find it more difficult to find a suitable replacement collaborator or attract new collaborators, and our 
development programs may be delayed or the perception of us in the business and financial communities could be adversely affected. All of the risks 
relating to product development, regulatory approval, and commercialization described in this Annual Report on Form 10-K apply to the activities of our 
collaborators. 

These relationships, or those like them, may require us to incur non-recurring and other charges, increase our near- and long-term expenditures, issue 
securities that dilute our existing stockholders, or disrupt our management and business. In addition, we could face significant competition in seeking 
appropriate collaborators, and the negotiation process is time-consuming and complex. Our ability to reach a definitive collaboration agreement will 
depend, among other things, upon our assessment of the collaborator’s resources and expertise, the terms and conditions of the proposed collaboration, and 
the proposed collaborator’s evaluation of several factors. If we license rights to any product candidates, we may develop we or our collaborators may 
develop, we may not be able to realize the benefit of such transactions if we are unable to successfully integrate them with our existing operations and 
company culture. 

If conflicts arise between us and our collaborators or strategic partners, these parties may act in a manner adverse to us and could limit our ability to 
implement our strategies. 

If conflicts arise between our corporate or academic collaborators or strategic partners and us, the other party may act in a manner adverse to us and could 
limit our ability to implement our strategies. Some of our collaborators and strategic partners are conducting multiple product development efforts within 
each area that is the subject of the collaboration with us. Our collaborators or strategic partners, however, may develop, either alone or with others, products 
in related fields that are competitive with the product candidates we may develop that are the subject of these collaborations with us. Competing products, 
either developed by the collaborators or strategic partners or to which the collaborators or strategic partners have rights, may result in the withdrawal of 
partner support for our product candidates we may develop. 

Some of our collaborators or strategic partners could also become our competitors in the future. Our collaborators or strategic partners could develop 
competing products, preclude us from entering into collaborations with their competitors, fail to obtain timely regulatory approvals, terminate their 
agreements with us prematurely, or fail to devote sufficient resources to the development and commercialization of products. Any of these developments 
could harm our product development efforts. 

If we are not able to establish collaborations on commercially reasonable terms, we may have to alter our development and commercialization plans. 

Our product development and research programs and the potential commercialization of any product candidates we may develop will require substantial 
additional cash to fund expenses. For some of the product candidates we may develop, we may decide to collaborate with other pharmaceutical and 
biotechnology companies for the development and potential commercialization of those product candidates. 

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We face significant competition in seeking appropriate collaborators. Whether we reach a definitive agreement for a collaboration will depend, among other 
things, upon our assessment of the collaborator’s resources and expertise, the terms and conditions of the proposed collaboration, and the proposed 
collaborator’s evaluation of a number of factors. Those factors may include the design or results of clinical trials, the likelihood of approval by the FDA, 
the EMA or similar regulatory authorities outside the United States, the potential market for the subject product candidate, the costs and complexities of 
manufacturing and delivering such product candidate to patients, the potential of competing products, the existence of uncertainty with respect to our 
ownership of technology, which can exist if there is a challenge to such ownership without regard to the merits of the challenge, and industry and market 
conditions generally. The collaborator may also consider alternative product candidates or technologies for similar indications that may be available to 
collaborate on and whether such a collaboration could be more attractive than the one with us. 

We may also be restricted under existing collaboration agreements from entering into future agreements on certain terms with potential collaborators. 
Collaborations are complex and time-consuming to negotiate and document. In addition, there have been a significant number of recent business 
combinations among large pharmaceutical companies that have resulted in a reduced number of potential future collaborators. 

We may not be able to negotiate collaborations on a timely basis, on acceptable terms, or at all. If we are unable to do so, we may have to curtail the 
development of the product candidate for which we are seeking to collaborate, reduce or delay its development program or one or more of our other 
development programs, if approved, delay its potential commercialization or reduce the scope of any sales or marketing activities, or increase our 
expenditures and undertake development or, if approved, commercialization activities at our own expense. If we elect to increase our expenditures to fund 
development or, if approved, commercialization activities on our own, we may need to obtain additional capital, which may not be available to us on 
acceptable terms or at all. If we do not have sufficient funds, we may not be able to develop product candidates or bring them to market and generate 
product revenue.

We helped launch a new company, Orbital Therapeutics, Inc., and are exposed to risks associated with the launch of the new company, including that 
we may not realize the advantages we expect from it.

In September 2022, we helped launch Orbital Therapeutics Inc., or Orbital, in collaboration with ARCH Venture Partners, with a goal of advancing 
ribonucleic acid, or RNA, medicines. In connection with the Orbital launch, we entered into a license and collaboration agreement, or the Orbital 
Agreement, with Orbital pursuant to which we and Orbital each granted the other licenses to certain technology controlled by it necessary or reasonably 
useful for the non-viral delivery or the design or manufacture of RNA for the prevention, treatment or diagnosis of human disease. In addition, concurrently 
with our entry into the Orbital Agreement, Orbital issued us 75 million shares of its common stock. ARCH Venture Partners is also a stockholder of 
Orbital, two of our directors affiliated with ARCH Venture Partners, Kristina Burow and John Maraganore, as well as John Evans, our Chief Executive 
Officer, are members of the board of directors of Orbital, and our President, Dr. Giuseppe Ciaramella, is the interim chief executive officer of Orbital and is 
a member of its board of directors. 

Because of our minority ownership in Orbital, we have a lesser degree of control over its business operations, thereby potentially subjecting us to additional 
the financial, legal, operational and compliance risks. In addition, the controlling shareholders or management of Orbital may have business interests, 
strategies or goals that are inconsistent with ours. These risks include the possibility that Orbital or such other stockholders have economic or business 
interests or goals that are or become inconsistent with our economic or business interests or goals; are in a position to take action contrary to our 
instructions, requests, policies or objectives; subject us to unexpected liabilities or risks; take actions that reduce our return on investment; act in a manner 
that compromises our key licensed rights, or important intellectual or other rights that we own or license; or take actions that harm our reputation or restrict 
our ability to run our business. Furthermore, as a result of our ownership in Orbital, we may in the future be required to include Orbital’s financial 
information in our consolidated financial results. We have not previously included a minority-owned subsidiary in our financial statements and we would 
therefore be subject to increased risk in accurately representing and incorporating Orbital financial statements into our own, which could result in delayed 
filings with the SEC and the finding of a material or significant weakness, among others. This could result in harmful consequences to our business, 
including an adverse reaction in the financial markets due to a loss of confidence in the reliability of our consolidated financial statements.

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Risks related to our intellectual property 

If we are unable to obtain and maintain patent and other intellectual property protection for any product candidates we develop and for our platform 
technologies, or if the scope of the patent and other intellectual property protection obtained is not sufficiently broad, our competitors could develop 
and commercialize products and technology similar or identical to ours, and our ability to successfully commercialize any product candidates we may 
develop, and our platform technologies may be adversely affected. 

Our commercial success will depend in large part on our ability to obtain and maintain patent, trademark, trade secret and other intellectual property 
protection of our base editing platform technology, product candidates and other technology, including delivery platform technology methods used to 
manufacture them and methods of treatment, as well as successfully defending our patent and other intellectual property rights against third-party 
challenges. It is difficult and costly to protect our base editing platform technology and protect candidates, and we may not be able to ensure their 
protection. Our ability to stop unauthorized third parties from making, using, selling, offering to sell, importing or otherwise commercializing our product 
candidates we may develop is dependent upon the extent to which we have rights under valid and enforceable patents or trade secrets that cover these 
activities. 

We seek to protect our proprietary position by in-licensing intellectual property relating to our platform technology and filing patent applications in the 
United States and abroad related to our base editing platform technology, delivery platform technology and product candidates that are important to our 
business. If we or our licensors are unable to obtain or maintain patent protection with respect to our base editing platform technology, delivery platform 
technology and product candidates we may develop, or if the scope of the patent protection secured is not sufficiently broad, our competitors could develop 
and commercialize products and technology similar or identical to ours and our ability to commercialize any product candidates we may develop may be 
adversely affected. 

The patent prosecution process is expensive, time-consuming, and complex, and we may not be able to file, prosecute, maintain, enforce, or license all 
necessary or desirable patent applications at a reasonable cost or in a timely manner. In addition, we may not pursue or obtain patent protection in all 
relevant markets. It is also possible that we will fail to identify patentable aspects of our research and development output in time to obtain patent 
protection. Although we enter into non-disclosure and confidentiality agreements with parties who have access to confidential or patentable aspects of our 
research and development output, such as our employees, corporate collaborators, outside scientific collaborators, CROs, contract manufacturers, 
consultants, advisors, and other third parties, any of these parties may breach the agreements and disclose such output before a patent application is filed, 
thereby jeopardizing our ability to seek patent protection. In addition, our ability to obtain and maintain valid and enforceable patents depends on whether 
the differences between our inventions and the prior art allow our inventions to be patentable over the prior art. Furthermore, publications of discoveries in 
the scientific literature often lag behind the actual discoveries, and patent applications in the United States and other jurisdictions are typically not 
published until 18 months after filing, or in some cases not at all. Therefore, we cannot be certain that we or our licensors were the first to make the 
inventions claimed in our owned or any licensed patents or pending patent applications, or that we or our licensors were the first to file for patent protection 
of such inventions. 

The patent position of biotechnology and pharmaceutical companies generally is highly uncertain, involves complex legal and factual questions, and has 
been the subject of much litigation in recent years. The field of gene editing, especially in the area of base editing technology, has been the subject of 
extensive patenting activity and litigation. As a result, the issuance, scope, validity, enforceability, and commercial value of our patent rights are highly 
uncertain, and we may become involved in complex and costly litigation. Our pending and future patent applications may not result in patents being issued 
which protect our base editing platform technology, delivery platform technology and product candidates we may develop, or which effectively prevent 
others from commercializing competitive technologies and product candidates. 

No consistent policy regarding the scope of claims allowable in the field of gene editing, including base editing technology, has emerged in the United 
States. The scope of patent protection outside of the United States is also uncertain. Changes in either the patent laws or their interpretation in the United 
States and other countries may diminish our ability to protect our inventions, obtain, maintain, enforce and defend our intellectual property rights and, more 
generally, could affect the value of our intellectual property or narrow the scope of our owned and licensed patent rights. With respect to both in-licensed 
and owned intellectual property, we cannot predict whether the patent applications we and our licensors are currently pursuing will issue as patents in any 
particular jurisdiction or whether the claims of any issued patents will be valid and enforceable and provide sufficient protection from competitors. 

Moreover, the coverage claimed in a patent application can be significantly reduced before the patent is issued, and its scope can be reinterpreted after 
issuance. Even if patent applications we license or own currently or in the future issue as patents, they may not issue in a form that will provide us with any 
meaningful protection, prevent competitors or other third parties from competing with us, or otherwise provide us with any competitive advantage. Any 
patents that we own, or in-license, may be challenged, narrowed, circumvented, or invalidated by third parties. Consequently, we do not know whether any 
of our platform advances and product candidates we may develop will be protectable or remain protected by valid and enforceable patents. Our competitors 
or other third parties may be able to circumvent our patents by developing similar or alternative technologies or products in a non-infringing manner. 

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In addition, given the amount of time required for the development, testing, and regulatory review of new product candidates, patents protecting such 
candidates might expire before or shortly after such candidates are commercialized. As a result, our intellectual property may not provide us with sufficient 
rights to exclude others from commercializing products similar or identical to ours. Moreover, some of our owned and in-licensed patents and patent 
applications are, and may in the future be, co-owned by us with third parties. For example, a patent application directed to our potential HBG1 and HBG2 
product candidates is co-owned by us, the President and Fellows of Harvard College, or Harvard, and Broad Institute. At present, we do not have a license 
to the ownership interest of Harvard or Broad Institute. If we are unable to obtain an exclusive license to such third-party co-owners’ interest in such 
patents or patent applications, such co-owners may be able to license their rights to other third parties, including our competitors, and our competitors could 
market competing products and technology. In addition, we may need the cooperation of any such co-owners of our patents in order to enforce such patents 
against third parties, and such cooperation may not be provided to us. Any of the foregoing could have a material adverse effect on our competitive 
position, business, financial conditions, results of operations, and prospects. 

Our rights to develop and commercialize our base editing platform technology and product candidates are subject, in part, to the terms and conditions 
of licenses granted to us by others. 

We depend on intellectual property licensed from third parties, and our licensors may not always act in our best interest. If we fail to comply with our 
obligations under our intellectual property licenses, if the licenses are terminated, or if disputes regarding these licenses arise, we could lose significant 
rights that are important to our business. 

We have licensed and are dependent on certain patent rights and proprietary technology from third parties that are important or necessary to the 
development of our base editing technology and product candidates. For example, we are a party to license agreements with Broad Institute, Editas, 
Harvard, and Bio Palette, and others, pursuant to which we in-license key patents and patent applications for our base editing platform technology and 
product candidates (the Broad License Agreement, the Editas License Agreement, the Harvard License Agreement and the Bio Palette License Agreement, 
respectively). These license agreements impose various diligence, milestone payment, royalty, insurance, and other obligations on us. If we fail to comply 
with these obligations, our licensors may have the right to terminate our license, in which event we would not be able to develop or market our base editing 
platform or any other technology or product candidates covered by the intellectual property licensed under these agreements. For example, under the 
Harvard License Agreement, we are required to initiate a discovery program in accordance with the development plan and development milestones for the 
development of a licensed product covered by certain sub-categories of licensed patents. If we fail to initiate such a discovery program, our rights with 
respect to the sub-category of licensed patents will terminate. 

These and other licenses may not provide exclusive rights to use such intellectual property and technology in all relevant fields of use and in all territories 
in which we may wish to develop or commercialize our base editing platform technology and product candidates in the future. Some licenses granted to us 
are expressly subject to certain preexisting rights held by the licensor or certain third parties. As a result, we may not be able to prevent competitors from 
developing and commercializing competitive products in certain territories or fields. For example, certain licensed patents developed by employees of the 
Howard Hughes Medical Institute, or HHMI, and subsequently assigned to Harvard and licensed to us under the Harvard License Agreement remain 
subject to a non-exclusive license between Harvard and HHMI. The Editas License Agreement provides that our field of use excludes the use of certain 
gene editing technologies for the diagnosis, treatment, and prevention of human cancers through certain engineered T-cells, which are licensed to Juno 
Therapeutics, Inc. (a subsidiary of Bristol-Myers Squibb Company). If we determine that rights to such excluded field are necessary to commercialize any 
of our product candidates or maintain our competitive advantage, we may need to obtain a license from such third party in order to continue developing, 
manufacturing or marketing our product candidates. We may not be able to obtain such a license on an exclusive basis, on commercially reasonable terms, 
or at all, which could prevent us from commercializing our product candidates or allow our competitors or others the chance to access technology that is 
important to our business. 

Under the Broad License Agreement, rights granted to us include certain patent applications directed to Cas12b or Cas13 that are limited to the United 
States. The co-owners of these patent applications include Broad Institute, Harvard, MIT, the State University of New Jersey, or Rutgers, Skolkovo Institute 
of Science and Technology, or Skoltech, and the NIH. At present, we do not have a license to the ownership interest of Rutgers, Skoltech, or the NIH. If we 
are unable to obtain an exclusive license to Rutgers, Skoltech, and the NIH’s interest in such patent applications, Rutgers, Skoltech, and the NIH may be 
able to license its rights to other third parties, including our competitors, and such third parties could market competing products and technology. In 
addition, we may need the cooperation of Rutgers, Skoltech, or the NIH in order to enforce patents issuing from these patent applications against third 
parties, and such cooperation may not be provided to us. Any of the foregoing could have a material adverse effect on our competitive position, business, 
financial conditions, results of operations, and prospects. 

In addition, pursuant to our license agreement with Broad Institute and our license agreement with Harvard, under certain specific circumstances (in each 
case), Broad Institute or Harvard (as applicable) may grant a license to the patents that are the subject of such license agreement to a third party in the same 
field as such patents are licensed to us. Such third party may then have full rights that are the subject of the Broad License Agreement or the Harvard 
License Agreement (as applicable), which could impact our competitive position and enable a third party to commercialize products similar to our potential 
future product candidates and technology. Any grant of rights to a third party in this scenario would narrow the scope of our exclusive rights to the patents 
and patent applications we have in-licensed from Broad Institute and/or Harvard, as applicable.

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We do not have complete control in the preparation, filing, prosecution, maintenance, enforcement, and defense of patents and patent applications covering 
the technology that we license from third parties. For example, pursuant to each of our intellectual property licenses with Broad Institute, Harvard, Editas 
and Bio Palette, our licensors retain control of preparation, filing, prosecution, and maintenance, and, in certain circumstances, enforcement and defense of 
their patents and patent applications. It is possible that our licensors’ enforcement of patents against infringers or defense of such patents against challenges 
of validity or claims of enforceability may be less vigorous than if we had conducted them ourselves, or may not be conducted in accordance with our best 
interests. We cannot be certain that these patents and patent applications will be prepared, filed, prosecuted, maintained, enforced, and defended in a 
manner consistent with the best interests of our business. If our licensors fail to prosecute, maintain, enforce, and defend such patents, or lose rights to 
those patents or patent applications, the rights we have licensed may be reduced or eliminated, our right to develop and commercialize any of our product 
candidates we may develop that are the subject of such licensed rights could be adversely affected and we may not be able to prevent competitors from 
making, using, and selling competing products. 

Our licensors may have relied on third-party consultants or collaborators or on funds from third parties such that our licensors are not the sole and exclusive 
owners of the patents we in-licensed. If other third parties have ownership rights to our in-licensed patents, the license granted to us in jurisdictions where 
the consent of a co-owner is necessary to grant such a license may not be valid and such co-owners may be able to license such patents to our competitors, 
and our competitors could market competing products and technology. In addition, our rights to our in-licensed patents and patent applications are 
dependent, in part, on inter-institutional or other operating agreements between the joint owners of such in-licensed patents and patent applications. If one 
or more of such joint owners breaches such inter-institutional or operating agreements, our rights to such in-licensed patents and patent applications may be 
adversely affected. Any of these events could have a material adverse effect on our competitive position, business, financial conditions, results of 
operations, and prospects. 

Furthermore, inventions contained within some of our in-licensed patents and patent applications were made using U.S. government funding. We rely on 
our licensors to ensure compliance with applicable obligations arising from such funding, such as timely reporting, an obligation associated with our in-
licensed patents and patent applications. The failure of our licensors to meet their obligations may lead to a loss of rights or the unenforceability of relevant 
patents. For example, the U.S. government could have certain rights in such in-licensed patents, including a non-exclusive license authorizing the U.S. 
government to use the invention or to have others use the invention on its behalf. If the U.S. government decides to exercise these rights, it is not required 
to engage us as its contractor in connection with doing so. The U.S. government’s rights may also permit it to disclose the funded inventions and 
technology to third parties and to exercise march-in rights to use or allow third parties to use the technology we have licensed that was developed using 
U.S. government funding. The U.S. government may also exercise its march-in rights if it determines that action is necessary because we or our licensors 
failed to achieve practical application of the U.S. government-funded technology, because action is necessary to alleviate health or safety needs, to meet 
requirements of federal regulations, or to give preference to U.S. industry. In addition, our rights in such in-licensed U.S. government-funded inventions 
may be subject to certain requirements to manufacture product candidates embodying such inventions in the United States. Any of the foregoing could 
harm our business, financial condition, results of operations, and prospects significantly. 

In the event any of our third-party licensors determine that, in spite of our efforts, we have materially breached a license agreement or have failed to meet 
certain obligations thereunder, it may elect to terminate the applicable license agreement or, in some cases, one or more licenses under the applicable 
license agreement and such termination would result in us no longer having the ability to develop and commercialize product candidates and technology 
covered by that license agreement or license. In the event of such termination of a third-party in-license, or if the underlying patents under a third-party in-
license fail to provide the intended exclusivity, competitors would have the freedom to seek regulatory approval of, and to market, products identical to 
ours. Any of these events could have a material adverse effect on our competitive position, business, financial conditions, results of operations, and 
prospects. 

Our owned and in-licensed patents and patent applications may not provide sufficient protection of our platform technologies, our product candidates 
and our future product candidates or result in any competitive advantage. 

We have in-licensed a number of issued U.S. patents and patent applications that cover base editing and gene targeting technologies, as well as our delivery 
platform technology. We have applied for provisional patent applications or Patent Cooperation Treaty, or PCT, applications intended to specifically cover 
our base editing platform technology and uses with respect to treatment of particular diseases and conditions, and currently own three issued U.S. patents. 
We have applied for provisional patent applications or PCT applications intended to specifically cover our delivery platform technology but do not 
currently own any issued U.S. patents. Each U.S. provisional patent application is not eligible to become an issued patent until, among other things, we file 
a non-provisional patent application within 12 months of the filing date of the applicable provisional patent application. Any failure to file a non-
provisional patent application within this timeline could cause us to lose the ability to obtain patent protection for the intentions disclosed in the associated 
provisional patent applications. We cannot be certain that any of these patent applications will issue as patents, and if they do, that such patents will cover 
or adequately protect our base editing platform technology, delivery platform technology or our product candidates, or that such patents will not be 
challenged, narrowed, circumvented, invalidated or held unenforceable. Any failure to obtain or maintain patent protection with respect to our base editing 
platform technology, delivery platform technology and product candidates could have a material adverse effect on our business, financial condition, results 
of operations and growth prospects. 

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Our owned patents and patent applications and our in-licensed patents and patent applications contain claims directed to compositions of matter on our base 
editing product candidates, as well as methods directed to the use of such product candidates for gene therapy treatment. Method-of-use patents do not 
prevent a competitor or other third party from developing or marketing an identical product for an indication that is outside the scope of the patented 
method. Moreover, with respect to method-of-use patents, even if competitors or other third parties do not actively promote their product for our targeted 
indications or uses for which we may obtain patents, providers may recommend that patients use these products off-label, or patients may do so themselves. 

The strength of patents in the biotechnology and pharmaceutical field involves complex legal and scientific questions and can be uncertain. The patent 
applications that we own, or in-license, may fail to result in issued patents with claims that cover our product candidates or uses thereof in the United States 
or in other foreign countries. For example, while our patent applications are pending, we may be subject to a third-party pre-issuance submission of prior 
art to the United States Patent and Trademark Office, or USPTO, or become involved in interference or derivation proceedings, or equivalent proceedings 
in foreign jurisdictions. Even if patents do successfully issue, third parties may challenge their inventorship, validity, enforceability or scope, including 
through opposition, revocation, reexamination, post-grant and inter partes review proceedings. An adverse determination in any such submission, 
proceeding or litigation could reduce the scope of, or invalidate or render unenforceable, our owned or in-licensed patent rights, allow third parties to 
commercialize our technology or product candidates and compete directly with us, without payment to us, or result in our inability to manufacture or 
commercialize products without infringing third-party patent rights. Moreover, we, or one of our licensors, may have to participate in interference 
proceedings declared by the USPTO to determine priority of invention or in post-grant challenge proceedings, such as oppositions in a foreign patent 
office, that challenge our or our licensor’s priority of invention or other features of patentability with respect to our owned or in-licensed patents and patent 
applications. Such challenges may result in loss of patent rights, loss of exclusivity, or in patent claims being narrowed, invalidated, or held unenforceable, 
which could limit our ability to stop others from using or commercializing similar or identical technology and products, or limit the duration of the patent 
protection of our technology and product candidates. Furthermore, even if they are unchallenged, our patents and patent applications may not adequately 
protect our intellectual property or prevent others from designing around our claims. If the breadth or strength of protection provided by the patents and 
patent applications we own or the patents and patent applications we in-license with respect to our base editing platform technology, delivery platform 
technology and product candidates is threatened, it could dissuade companies from collaborating with us to develop, and threaten our ability to 
commercialize, our product candidates. Further, if we encounter delays in development, testing, and regulatory review of new product candidates, the 
period of time during which we could market our product candidates under patent protection would be reduced. 

Given that patent applications in the United States and other countries are confidential for a period of time after filing, at any moment in time, we cannot be 
certain that we or our licensors were in the past or will be in the future the first to file any patent application related to our base editing technology, delivery 
platform technology or product candidates. In addition, some patent applications in the United States may be maintained in secrecy until the patents are 
issued. As a result, there may be prior art of which we or our licensors are not aware that may affect the validity or enforceability of a patent claim, and we 
or our licensors may be subject to priority disputes. For our in-licensed patent portfolios, we rely on our licensors to determine inventorship, and obtain and 
file inventor assignments of priority applications before their conversion as PCT applications. A failure to do so in a timely fashion may give rise to a 
challenge to entitlement of priority for foreign applications nationalized from such PCT applications. For example, the European Patent Office, or the EPO, 
Opposition Division, or the EPO Opposition Division, has revoked our optioned Broad Institute patent European Patent No. EP2771468 following a third-
party challenge to its priority rights. The patent was revoked due to loss of priority. We or our licensors are subject to and may in the future become a party 
to proceedings or priority disputes in Europe or other foreign jurisdictions. The loss of priority for, or the loss of, these European patents could have a 
material adverse effect on the conduct of our business. 

We may be required to disclaim part or all of the term of certain patents or patent applications. There may be prior art of which we are not aware that may 
affect the validity or enforceability of a patent claim. There also may be prior art of which we or our licensors are aware, but which we or our licensors do 
not believe affects the validity or enforceability of a claim, which may, nonetheless, ultimately be found to affect the validity or enforceability of a claim. 
No assurance can be given that, if challenged, our patents would be declared by a court, patent office or other governmental authority to be valid or 
enforceable or that even if found valid and enforceable, a competitor’s technology or product would be found by a court to infringe our patents. We may 
analyze patents or patent applications of our competitors that we believe are relevant to our activities, and consider that we are free to operate in relation to 
our product candidates, but our competitors may achieve issued claims, including in patents we consider to be unrelated, that block our efforts or 
potentially result in our product candidates or our activities infringing such claims. It is possible that our competitors may have filed, and may in the future 
file, patent applications covering our products or technology similar to ours. Those patent applications may have priority over our owned patent 
applications and in-licensed patent applications or patents, which could require us to obtain rights to issued patents covering such technologies. The 
possibility also exists that others will develop products that have the same effect as our product candidates on an independent basis that do not infringe our 
patents or other intellectual property rights, or will design around the claims of our patent applications or our in-licensed patents or patent applications that 
cover our product candidates. 

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Likewise, our currently owned patents and patent applications, if issued as patents, and in-licensed patents and patent applications, if issued as patents, 
directed to our proprietary base editing technologies and our product candidates are expected to expire from 2034 through 2044, without taking into 
account any possible patent term adjustments or extensions. Our owned or in-licensed patents may expire before, or soon after, our first product candidate 
achieves marketing approval in the United States or foreign jurisdictions. Additionally, no assurance can be given that the USPTO or relevant foreign 
patent offices will grant any of the pending patent applications we own or in-license currently or in the future. Upon the expiration of our current in-
licensed patents, we may lose the right to exclude others from practicing these inventions. The expiration of these patents could also have a similar material 
adverse effect on our business, financial condition, results of operations and prospects. 

Our owned patents and patent applications and in-licensed patents and patent applications and other intellectual property may be subject to priority 
disputes or to inventorship disputes and similar proceedings. If we or our licensors are unsuccessful in any of these proceedings, we may be required to 
obtain licenses from third parties, which may not be available on commercially reasonable terms or at all, or to cease the development, manufacture, 
and commercialization of one or more of the product candidates we may develop, which could have a material adverse impact on our business.

Although we have an option to exclusively license certain patents and patent applications directed to Cas9 and Cas12a from Editas, who in turn has 
licensed such patents from various academic institutions including Broad Institute, we do not currently have a license to such patents and patent 
applications. Certain of the U.S. patents and one U.S. patent application to which we hold an option are co-owned by Broad Institute and MIT, and in some 
cases co-owned by Broad Institute, MIT, and Harvard, which we refer to together as the Boston Licensing Parties, and were involved in U.S. interference 
No. 106,048 with one U.S. patent application co-owned by the University of California, the University of Vienna, and Emmanuelle Charpentier, which we 
refer to together as the University of California. On September 10, 2018, the Court of Appeals for the Federal Circuit, or the CAFC, affirmed the Patent 
Trial and Appeal Board of the USPTO’s, or PTAB’s, holding that there was no interference-in-fact. An interference is a proceeding within the USPTO to 
determine priority of invention of the subject matter of patent claims filed by different parties.

On June 24, 2019, the PTAB declared an interference (U.S. Interference No. 106,115) between ten U.S. patent applications ((U.S. Serial Nos. 15/947,680; 
15/947,700; 15/947,718; 15/981,807; 15/981,808; 15/981,809; 16/136,159; 16/136,165; 16/136,168; and 16/136,175) that are co-owned by the University 
of California, and 13 U.S. patents and one U.S. patent application (U.S. Patent Nos. 8,697,359; 8,771,945; 8,795,965; 8,865,406; 8,871,445; 8,889,356; 
8,895,308; 8,906,616; 8,932,814; 8,945,839; 8,993,233; 8,999,641; and 9,840,713, and U.S. Serial No. 14/704,551)) that are co-owned by the Boston 
Licensing Parties, which we have an option to under the Editas License Agreement. In the declared interference, the University of California has been 
designated as the junior party and the Boston Licensing Parties have been designated as the senior party.

As a result of the declaration of interference, an adversarial proceeding in the USPTO before the PTAB has been initiated, which is declared to ultimately 
determine priority, specifically and which party was first to invent the claimed subject matter. An interference is typically divided into two phases. The first 
phase is referred to as the motions or preliminary motions phase while the second is referred to as the priority phase. In the first phase, each party may raise 
issues including but not limited to those relating to the patentability of a party’s claims based on prior art, written description, and enablement. A party also 
may seek an earlier priority benefit or may challenge whether the declaration of interference was proper in the first place. Priority, or a determination of 
who first invented the commonly claimed invention, is determined in the second phase of an interference. The ten University of California patent 
applications and the 13 U.S. patents and one U.S. patent application co-owned by the Boston Licensing Parties involved in U.S. Interference No. 106,115 
generally relate to CRISPR/Cas9 systems or eukaryotic cells comprising CRISPR/Cas9 systems having fused or covalently linked RNA and the use thereof 
in eukaryotic cells. On February 28, 2022, the PTAB issued a decision that the Boston Licensing Parties have priority of invention over University of 
California with respect to a single RNA CRISPR-Cas9 system that functions in eukaryotic cells. This decision is being appealed. There can be no assurance 
that the U.S. interference will be resolved in favor of the Boston Licensing Parties on appeal. If the U.S. interference resolves in favor of University of 
California, or if the Boston Licensing Parties’ patents and patent application are narrowed, invalidated, or held unenforceable, we may lose the ability to 
license the optioned patents and patent application and our ability to commercialize our product candidates may be adversely affected if we cannot obtain a 
license to relevant third party patents that cover our product candidates. We may not be able to obtain any required license on commercially reasonable 
terms or at all. Even if we were able to obtain a license, it could be nonexclusive, thereby giving our competitors and other third parties access to the same 
technologies licensed to us, and it could require us to make substantial licensing and royalty payments. If we are unable to obtain a necessary license to a 
third-party patent on commercially reasonable terms, we may be unable to commercialize our base editing platform technology or product candidates or 
such commercialization efforts may be significantly delayed, which could in turn significantly harm our business.

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We or our licensors may be subject to similar interferences in the future with the same risks as described above. For example, on December 14, 2020, the 
PTAB declared an interference (U.S. Interference No. 106,126) between 14 U.S. patents and two U.S. patent applications (U.S. Patent Nos. 8,697,359; 
8,771,945; 8,795,965; 8,865,406; 8,871,445; 8,889,356; 8,889,418; 8,895,308; 8,906,616; 8,932,814; 8,945,839; 8,993,233; 8,999,641; and 9,840,713, and 
U.S. Serial Nos. 14/704,551 and 15/330,876) that are co-owned by the Boston Licensing Parties, which we have an option to under the Editas License 
Agreement, and one U.S. patent application (U.S. Serial Nos. 14/685,510) that is owned by Toolgen, Inc, or Toolgen. In the declared interference, the 
Boston Licensing Parties have been designated as the junior party and Toolgen has been designated as the senior party. In March 2021, the PTAB issued an 
order on preliminary motions, granting, in part, and denying, in part, certain motions proposed by the Boston Licensing Parties and Toolgen. An oral 
hearing in the priority phase of U.S. Interference No. 106,126 was held on September 12, 2022. On September 28, 2022, the PTAB issued a decision on 
preliminary motions denying or dismissing certain motions proposed by the Boston Licensing Parties and Toolgen and issued an order suspending 
proceedings in the priority phase of the interference. We cannot predict with any certainty when a decision will be made. The 14 U.S. patents and two U.S. 
patent applications co-owned by the Boston Licensing Parties involved in U.S. Interference No. 106,126 generally relate to CRISPR/Cas9 systems or 
eukaryotic cells comprising CRISPR/Cas9 systems having fused or covalently linked RNA and the use thereof in eukaryotic cells.

On June 21, 2021, the PTAB declared an interference (U.S. Interference No. 106,133) between the same 14 U.S. patents and two U.S. patent applications 
(U.S. Patent Nos. 8,697,359; 8,771,945; 8,795,965; 8,865,406; 8,871,445; 8,889,356; 8,889,418; 8,895,308; 8,906,616; 8,932,814; 8,945,839; 8,993,233; 
8,999,641; and 9,840,713, and U.S. Serial Nos. 14/704,551 and 15/330,876, co-owned by the Boston Licensing Parties) as named in the interference with 
Toolgen, and one U.S. patent application (U.S. Serial Nos. 15/456,204) that is owned by Sigma-Aldrich Co., LLC, or Sigma-Aldrich. In the declared 
interference, the Boston Licensing Parties have been designated as the junior party and Sigma-Aldrich has been designated as the senior party. In 
September 2021, the PTAB issued an order on preliminary motions, granting, deferring, dismissing, or denying, certain motions proposed by the Boston 
Licensing Parties and Sigma-Aldrich. An oral hearing in the priority phase of U.S. Interference No. 106,133 was held on November 21, 2022. On 
December 14, 2022, the PTAB issued a decision on preliminary motions denying or dismissing certain motions proposed by the Boston Licensing Parties 
and Sigma-Aldrich and issued an order suspending proceedings in the priority phase of the interference. We cannot predict with any certainty when a 
decision will be made.

We or our licensors may also be subject to claims that former employees, collaborators, or other third parties have an interest in our owned patents or patent 
applications or in-licensed patents or patent applications or other intellectual property as an inventor or co-inventor. If we are unable to obtain an exclusive 
license to any such third-party co-owners’ interest in such patents or patent applications, such co-owners may be able to license their rights to other third 
parties, including our competitors. In addition, we may need the cooperation of any such co-owners to enforce any patents that issue from such patent 
applications against third parties, and such cooperation may not be provided to us.

If we or our licensors are unsuccessful in any interference proceedings or other priority, validity (including any patent oppositions), or inventorship disputes 
to which we or they are subject, we may lose valuable intellectual property rights through the loss of one or more of our owned, licensed, or optioned 
patents, or such patent claims may be narrowed, invalidated, or held unenforceable, or through loss of exclusive ownership of or the exclusive right to use 
our owned or in-licensed patents. In the event of loss of patent rights as a result of any of these disputes, we may be required to obtain and maintain 
licenses from third parties, including parties involved in any such interference proceedings or other priority or inventorship disputes. Such licenses may not 
be available on commercially reasonable terms or at all, or may be non-exclusive. If we are unable to obtain and maintain such licenses, we may need to 
cease the development, manufacture, and commercialization of one or more of the product candidates we may develop. The loss of exclusivity or the 
narrowing of our patent claims could limit our ability to stop others from using or commercializing similar or identical technology and product candidates. 
Even if we or our licensors are successful in an interference proceeding or other similar priority or inventorship disputes, it could result in substantial costs 
and be a distraction to management and other employees. Any of the foregoing could result in a material adverse effect on our business, financial condition, 
results of operations, or prospects.

We have limited foreign intellectual property rights and may not be able to protect our intellectual property and proprietary rights throughout the 
world. 

We have limited intellectual property rights outside the United States. Filing, prosecuting, and defending patents on product candidates in all countries 
throughout the world would be prohibitively expensive, and our intellectual property rights in some countries outside the United States can be less 
extensive than those in the United States. In addition, the laws of foreign countries do not protect intellectual property rights to the same extent as federal 
and state laws of the United States. In addition, our intellectual property license agreements may not always include worldwide rights. Consequently, we 
may not be able to prevent third parties from practicing our inventions in all countries outside the United States, or from selling or importing products made 
using our inventions in and into the United States or other jurisdictions. Competitors may use our technologies in jurisdictions where we have not obtained 
patent protection to develop their own products and, further, may export otherwise infringing products to territories where we have patent protection but 
where enforcement is not as strong as that in the United States. These products may compete with our product candidates and our patents or other 
intellectual property rights may not be effective or sufficient to prevent them from competing. 

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Many companies have encountered significant problems in protecting and defending intellectual property rights in foreign jurisdictions. The legal systems 
of certain countries, particularly certain developing countries, do not favor the enforcement of patents, trade secrets, and other intellectual property 
protection, particularly those relating to biotechnology and pharmaceutical products, which could make it difficult for us to stop the infringement of our 
patents or marketing of competing products against third parties in violation of our intellectual property and proprietary rights generally. Proceedings to 
enforce our patents and intellectual property rights in foreign jurisdictions could result in substantial costs and divert our efforts and attention from other 
aspects of our business, could put our patents at risk of being invalidated or interpreted narrowly and our patent applications at risk of not issuing, and 
could provoke third parties to assert claims against us. We may not prevail in any lawsuits that we initiate, and the damages or other remedies awarded, if 
any, may not be commercially meaningful. Moreover, the initiation of proceedings by third parties to challenge the scope or validity of our patent rights in 
foreign jurisdictions could result in substantial cost and divert our efforts and attention from other aspects of our business. Accordingly, our efforts to 
enforce our intellectual property and proprietary rights around the world may be inadequate to obtain a significant commercial advantage from the 
intellectual property that we develop or license. 

Many countries have compulsory licensing laws under which a patent owner may be compelled to grant licenses to third parties. In addition, many 
countries limit the enforceability of patents against government agencies or government contractors. In these countries, the patent owner may have limited 
remedies, which could materially diminish the value of such patent. If we or any of our licensors is forced to grant a license to third parties with respect to 
any patents relevant to our business, our competitive position may be impaired, and our business, financial condition, results of operations, and prospects 
may be adversely affected. 

If we fail to comply with our obligations in the agreements under which we license intellectual property rights from third parties or otherwise 
experience disruptions to our business relationships with our licensors, we could lose license rights that are important to our business. 

We have entered into license agreements with third parties and may need to obtain additional licenses from our existing licensors and others to advance our 
research or allow commercialization of product candidates we may develop. It is possible that we may be unable to obtain any additional licenses at a 
reasonable cost or on reasonable terms, if at all. In either event, we may be required to expend significant time and resources to redesign our technology, 
product candidates, or the methods for manufacturing them or to develop or license replacement technology, all of which may not be feasible on a technical 
or commercial basis. If we are unable to do so, we may be unable to develop or commercialize the affected product candidates, which could harm our 
business, financial condition, results of operations, and prospects significantly. We cannot provide any assurances that third-party patents do not exist which 
might be enforced against our current technology, including base editing technology, delivery platform technology, manufacturing methods, product 
candidates, or future methods or products resulting in either an injunction prohibiting our manufacture or future sales, or, with respect to our future sales, an 
obligation on our part to pay royalties and/or other forms of compensation to third parties, which could be significant. 

In each of our license agreements, we are generally responsible for bringing any actions against any third party for infringing on the patents we have 
licensed. Certain of our license agreements also require us to meet development thresholds to maintain the license, including establishing a set timeline for 
developing and commercializing products. In spite of our efforts, our licensors might conclude that we have materially breached our obligations under such 
license agreements and might therefore terminate the license agreements, thereby removing or limiting our ability to develop and commercialize products 
and technology covered by these license agreements. If these in-licenses are terminated, or if the underlying patents fail to provide the intended exclusivity, 
competitors or other third parties would have the freedom to seek regulatory approval of, and to market, products identical to ours and we may be required 
to cease our development and commercialization of or base editing platform technology, delivery platform technology or product candidates. Any of the 
foregoing could have a material adverse effect on our competitive position, business, financial conditions, results of operations, and growth prospects. 
Disputes may arise regarding intellectual property subject to a licensing agreement, including:  

•

•

•

•

•

•

the scope of rights granted under the license agreement and other interpretation-related issues; 

the extent to which our technology and processes infringe on intellectual property of the licensor that is not subject to the licensing 
agreement; 

the sublicensing of patent and other rights to third parties under our collaborative development relationships; 

our diligence obligations under the license agreement with respect to the use of the licensed technology in relation to our development and 
commercialization of our product candidates and what activities satisfy those diligence obligations; 

the inventorship and ownership of inventions and know-how resulting from the joint creation or use of intellectual property by our licensors 
and us and our partners; and 

the priority of invention of patented technology. 

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In addition, the agreements under which we currently license intellectual property or technology from third parties are complex, and certain provisions in 
such agreements may be susceptible to multiple interpretations. The resolution of any contract interpretation disagreement that may arise could narrow 
what we believe to be the scope of our rights to the relevant intellectual property or technology or broaden what we believe to be the scope of the licensor’s 
rights to our intellectual property and technology, or increase what we believe to be our financial or other obligations under the relevant agreement, any of 
which could have a material adverse effect on our business, financial condition, results of operations, and prospects. Moreover, if disputes over intellectual 
property that we have licensed prevent or impair our ability to maintain our current licensing arrangements on commercially acceptable terms, we may be 
unable to successfully develop and commercialize the affected product candidates. As a result, any termination of or disputes over our intellectual property 
licenses could result in the loss of our ability to develop and commercialize our base editing platform, delivery platform, or other product candidates or we 
could lose other significant rights, any of which could have a material adverse effect on our business, financial conditions, results of operations, and 
prospects. It is also possible that a third party could be granted limited licenses to some of the same technology, in certain circumstances. 

We may not be successful in acquiring or in-licensing necessary rights to key technologies or any product candidates we may develop. 

We currently have rights to intellectual property, through licenses from third parties, to identify and develop product candidates, and we expect to seek to 
expand our product candidate pipeline in part by in-licensing the rights to key technologies. The future growth of our business will depend in part on our 
ability to in-license or otherwise acquire the rights to additional product candidates and technologies. Although we have succeeded in licensing 
technologies from third party licensors, including Harvard, Broad Institute, Editas, and Bio Palette in the past, we cannot assure you that we will be able to 
in-license or acquire the rights to any product candidates or technologies from third parties on acceptable terms or at all. 

For example, our agreements with certain of our third-party licensors provide that our field of use excludes particular fields, for example, the use of certain 
gene editing technologies for the diagnosis, treatment, and prevention of human cancers through certain engineered T-cells, which are licensed exclusively 
or non-exclusively to a third-party licensee. If we determine that rights to such fields are necessary to commercialize our drug candidates or maintain our 
competitive advantage, we may need to obtain a license from such third party in order to continue developing, manufacturing or marketing our drug 
candidates. We may not be able to obtain such a license on an exclusive basis, on commercially reasonable terms, or at all, which could prevent us from 
commercializing our drug candidates or allow our competitors or others the chance to access technology that is important to our business. 

Furthermore, there has been extensive patenting activity in the fields of gene editing and delivery technologies, and pharmaceutical companies, 
biotechnology companies, and academic institutions are competing with us or are expected to compete with us in the fields of gene editing and delivery 
technologies and filing patent applications potentially relevant to our business and we are aware of certain third-party patents, as well as patent applications 
that, if issued, may allow the third party to circumvent our patent rights. For example, we are aware of several third-party patents, and patent applications 
that, if issued, may be construed to cover our base editing technology, delivery technology and product candidates. In order to market our product 
candidates, we may find it necessary or prudent to obtain licenses from such third-party intellectual property holders. However, we may be unable to secure 
such licenses or otherwise acquire or in-license any compositions, methods of use, processes, or other intellectual property rights from third parties that we 
identify as necessary for product candidates we may develop and base editing and delivery technologies. We may also require licenses from third parties for 
additional non-base editing technologies, including additional delivery methods that we are evaluating for use with product candidates we are developing 
and may develop in the future. In addition, some of our owned patents and patent applications and in-licensed patents and patent applications are co-owned 
with third parties. With respect to any patents co-owned with third parties, we may require licenses to such co-owners’ interest to such patents. If we are 
unable to obtain an exclusive license to any such third-party co-owners’ interest in such patents or patent applications, such co-owners may be able to 
license their rights to other third parties, including our competitors, and our competitors could market competing products and technology. In addition, we 
may need the cooperation of any such co-owners of our patents in order to enforce such patents against third parties, and such cooperation may not be 
provided to us. 

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Additionally, we may collaborate with academic institutions to accelerate our preclinical research or development under written agreements with these 
institutions. In certain cases, these institutions provide us with an option to negotiate a license to any of the institution’s rights in technology resulting from 
the collaboration. Even if we hold such an option, we may be unable to negotiate a license from the institution within the specified timeframe or under 
terms that are acceptable to us. If we are unable to do so, the institution may offer the intellectual property rights to others, potentially blocking our ability 
to pursue our program. 

In addition, the licensing or acquisition of third-party intellectual property rights is a highly competitive area, and a number of more established companies 
are also pursuing strategies to license or acquire third party intellectual property rights that we may consider attractive or necessary. These established 
companies may have a competitive advantage over us due to their size, capital resources and greater clinical development and commercialization 
capabilities. In addition, companies that perceive us to be a competitor may be unwilling to assign or license rights to us. We also may be unable to license 
or acquire third party intellectual property rights on terms that would allow us to make an appropriate return on our investment or at all. If we are unable to 
successfully obtain rights to required third party intellectual property rights or maintain the existing intellectual property rights we have, we may have to 
abandon development of the relevant program or product candidate, which could have a material adverse effect on our business, financial condition, results 
of operations, and prospects. 

The intellectual property landscape around gene editing technology, including base editing and delivery technology, is highly dynamic, and third 
parties may initiate legal proceedings alleging that we are infringing, misappropriating, or otherwise violating their intellectual property rights, the 
outcome of which would be uncertain and may prevent, delay or otherwise interfere with our product discovery and development efforts. 

The field of gene editing, especially in the area of base editing technology, is still in its infancy, and no such product candidates have reached the market. 
Due to the intense research and development that is taking place by several companies, including us and our competitors, in this field and in the field of 
delivery technology, the intellectual property landscape is evolving and in flux, and it may remain uncertain for the coming years. There may be significant 
intellectual property related litigation and proceedings relating to our owned and in-licensed, and other third party, intellectual property and proprietary 
rights in the future. 

Our commercial success depends upon our ability and the ability of our collaborators and licensors to develop, manufacture, market, and sell any product 
candidates that we may develop and use our proprietary technologies without infringing, misappropriating, or otherwise violating the intellectual property 
and proprietary rights of third parties. The biotechnology and pharmaceutical industries are characterized by extensive litigation regarding patents and other 
intellectual property rights as well as administrative proceedings for challenging patents, including interference, derivation, inter partes review, post grant 
review, and reexamination proceedings before the USPTO or oppositions and other comparable proceedings in foreign jurisdictions. We may be subject to 
and may in the future become party to, or threatened with, adversarial proceedings or litigation regarding intellectual property rights with respect to our 
base editing platform technology, delivery platform technology and any product candidates we may develop, including interference proceedings, post-grant 
review, inter partes review, and derivation proceedings before the USPTO and similar proceedings in foreign jurisdictions such as oppositions before the 
EPO. Numerous U.S. and foreign issued patents and pending patent applications that are owned by third parties exist in the fields in which we are 
developing our product candidates and they may assert infringement claims against us based on existing patents or patents that may be granted in the 
future, regardless of their merit. 

As the biotechnology and pharmaceutical industries expand and more patents are issued, the risk increases that our base editing platform technology, 
delivery platform technology and product candidates may give rise to claims of infringement of the patent rights of others. Moreover, it is not always clear 
to industry participants, including us, which patents cover various types of therapies, products or their methods of use or manufacture. We are aware of 
certain third-party patents and patent applications that, if issued, may be construed to cover our base editing technology, delivery technology and product 
candidates. There may also be third-party patents of which we are currently unaware with claims to technologies, methods of manufacture or methods for 
treatment related to the use or manufacture of our product candidates. Because patent applications can take many years to issue, there may be currently 
pending patent applications that may later result in issued patents that our product candidates may infringe. In addition, third parties may obtain patents in 
the future and claim that use of our technologies infringes upon these patents. 

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Numerous third-party U.S. and foreign issued patents and pending patent applications exist in the fields in which we are developing product candidates. 
Our product candidates make use of CRISPR-based technology, which is a field that is highly active for patent filings. The extensive patent filings related 
to CRISPR and Cas make it difficult for us to assess the full extent of relevant patents and pending applications that may cover our base editing platform 
technology and product candidates and their use or manufacture. There may be third-party patents or patent applications with claims to materials, 
formulations, methods of manufacture or methods for treatment related to the use or manufacture of our base editing platform technology and product 
candidates. For example, we are aware of a patent portfolio that is co-owned by the University of California, University of Vienna and Emmanuelle 
Charpentier, or the University of California Portfolio, which contains multiple patents and pending applications directed to gene editing. The University of 
California portfolio includes, for example, U.S. Patent Nos. 10,266,850; 10,227,611; 10,000,772; 10,113,167; 10,301,651; 10,308,961; 10,337,029; 
10,351,878; 10,407,697; 10,358,659; 10,358,658; 10,385,360; 10,400,253; 10,421,980; 10,415,061; 10,428,352; 10,443,076; 10,487,341; 10,513,712; 
10,519,467; 10,526,619; 10,533,190; 10,550,407; 10,563,227; 10,570,419; 10,577,631; 10,597,680; 10,612,045; 10,626,419; 10,640,791; 10,669,560; 
10,676,759; 10,752,920; 10,774,344; 10,793,878; 10,900,054; 10,982,230; 10,982,231; 10,988,780; 10,988,782; 11,001,863; 11,008,589; 11,008,590; 
11,028,412; 11,186,849; 11,242,543; 11,274,318; 11,293,034;11,332,761; 11,401,532; 11,473,108; 11,479,794; 11,549,127 which are expected to expire 
around March 2033, excluding any additional term for patent term adjustment, or PTA, or patent term extension, or PTE, and any disclaimed term for 
terminal disclaimers. The University of California portfolio also includes numerous additional pending patent applications. If these patent applications 
issue as patents, they are expected to expire around March 2033, excluding any PTA, PTE, and any disclaimed term for terminal disclaimers. As discussed 
above, certain applications in the University of California Portfolio are currently subject to U.S. Interference No. 106,115 with certain U.S. patents and one 
U.S. patent application that are co-owned by the Boston Licensing Parties to which we have an option under the Editas License Agreement. Although we 
have an option to exclusively license certain patents and patent applications directed to Cas9 and Cas12a from Editas, who in turn has licensed such patents 
from various academic institutions including Broad Institute, we do not currently have a license to such patents and patent applications. Certain members of 
the University of California Portfolio are being opposed in Europe by multiple parties. For example, the EPO Opposition Division has initiated opposition 
proceedings against European Patent Nos. EP2,800,811 B1, and EP3,241,902 B1and EP3401400 B1, which are estimated to expire in March 2033 
(excluding any patent term adjustments or extensions). The opposition procedure before the EPO allows one or more third parties to challenge the validity 
of a granted European patent within nine months after grant date of the European patent. Opposition proceedings may involve issues including, but not 
limited to, priority, patentability of the claims involved, and procedural formalities related to the filing of the patent application. As a result of the 
opposition proceedings, the Opposition Division can revoke a patent, maintain the patent as granted, or maintain the patent in an amended form. Most of 
the claims of European patent EP 2,800,811 B1 were maintained without amendment by the Opposition Division, but this decision is being appealed. In 
April 2021, the claims of European patent EP3,241,902 B1 were revoked in their entirety, and that decision is not being appealed. In February 2022, the 
claims of European patent EP3,401,400 B1 were maintained in amended form by the Opposition Division, and this decision is being appealed. If these 
patents are maintained by the Opposition Division with claims similar to those that are currently opposed, our ability to commercialize our product 
candidates may be adversely affected if we do not obtain a license to these patents. We may not be able to obtain any required license on commercially 
reasonable terms or at all. Even if we were able to obtain a license, it could be nonexclusive, thereby giving our competitors and other third parties access 
to the same technologies licensed to us, and it could require us to make substantial licensing and royalty payments. If we are unable to obtain a necessary 
license to a third-party patent on commercially reasonable terms, we may be unable to commercialize our base editing platform technology or product 
candidates or such commercialization efforts may be significantly delayed, which could in turn significantly harm our business. 

Numerous other patents and patent applications have been filed by other third parties directed to gene editing, guide nucleic acids, PAM sequence variants, 
split inteins, Cas12b or gene editing in the context of immune therapy or chimeric antigen receptors. 

Because of the large number of patents issued and patent applications filed in our field, third parties may allege they have patent rights encompassing our 
product candidates, technologies or methods. Third parties may assert that we are employing their proprietary technology without authorization and may 
file patent infringement claims or lawsuit against us, and if we are found to infringe such third-party patents, we may be required to pay damages, cease 
commercialization of the infringing technology, or obtain a license from such third parties, which may not be available on commercially reasonable terms 
or at all. 

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Our ability to commercialize our product candidates in the United States and abroad may be adversely affected if we cannot obtain a license on 
commercially reasonable terms to relevant third-party patents that cover our product candidates, delivery platform technology or base editing platform 
technology. Even if we believe third-party intellectual property claims are without merit, there is no assurance that a court would find in our favor on 
questions of infringement, validity, enforceability, or priority. A court of competent jurisdiction could hold that these third-party patents are valid, 
enforceable, and infringed, which could materially and adversely affect our ability to commercialize any product candidates we may develop and any other 
product candidates or technologies covered by the asserted third-party patents. In order to successfully challenge the validity of any such U.S. patent in 
federal court, we would need to overcome a presumption of validity. As this burden is a high one requiring us to present clear and convincing evidence as 
to the invalidity of any such U.S. patent claim, there is no assurance that a court of competent jurisdiction would invalidate the claims of any such U.S. 
patent. If we are found to infringe a third party’s intellectual property rights, and we are unsuccessful in demonstrating that such patents are invalid or 
unenforceable, we could be required to obtain a license from such third party to continue developing, manufacturing, and marketing any product candidates 
we may develop and our technology. However, we may not be able to obtain any required license on commercially reasonable terms or at all. Even if we 
were able to obtain a license, it could be non-exclusive, thereby giving our competitors and other third parties access to the same technologies licensed to 
us, and it could require us to make substantial licensing and royalty payments. If we are unable to obtain a necessary license to a third-party patent on 
commercially reasonable terms, we may be unable to commercialize our base editing platform technology, delivery platform technology or product 
candidates or such commercialization efforts may be significantly delayed, which could in turn significantly harm our business. We also could be forced, 
including by court order, to cease developing, manufacturing, and commercializing the infringing technology or product candidates. In addition, we could 
be found liable for significant monetary damages, including treble damages and attorneys’ fees, if we are found to have willfully infringed a patent or other 
intellectual property right. Claims that we have misappropriated the confidential information or trade secrets of third parties could have a similar material 
adverse effect on our business, financial condition, results of operations, and prospects. 

Defense of third-party claims of infringement of misappropriation, or violation of intellectual property rights involves substantial litigation expense and 
would be a substantial diversion of management and employee time and resources from our business. Some third parties may be able to sustain the costs of 
complex patent litigation more effectively than we can because they have substantially greater resources. In addition, any uncertainties resulting from the 
initiation and continuation of any litigation could have a material adverse effect on our ability to raise the funds necessary to continue our operations or 
could otherwise have a material adverse effect on our business, financial condition, results of operations and prospects. There could also be public 
announcements of the results of hearings, motions, or other interim proceedings or developments, and if securities analysts or investors perceive these 
results to be negative, it could have a substantial adverse effect on the price of our common stock. Any of the foregoing events could have a material 
adverse effect on our business, financial condition, results of operations and prospects. 

We may become involved in lawsuits to protect or enforce our patents, future patents or the patents of our licensors, which could be expensive, time 
consuming, and unsuccessful and could result in a finding that such patents are unenforceable or invalid. 

Competitors may infringe our patents, future patents or the patents of our licensing partners, or we may be required to defend against claims of 
infringement. In addition, our patents, future patents or the patents of our licensing partners also are, and may in the future become, involved in 
inventorship, priority, validity or enforceability disputes. Countering or defending against such claims can be expensive and time consuming. In an 
infringement proceeding, a court may decide that a patent owned or in-licensed by us is invalid or unenforceable, or may refuse to stop the other party from 
using the technology at issue on the grounds that our owned and in-licensed patents do not cover the technology in question. An adverse result in any 
litigation proceeding could put one or more of our owned or in-licensed patents at risk of being invalidated or interpreted narrowly. 

In patent litigation in the United States, defendant counterclaims alleging invalidity and/or unenforceability are commonplace, and there are numerous 
grounds upon which a third party can assert invalidity or unenforceability of a patent. Third parties may also raise similar claims before administrative 
bodies in the United States or abroad, even outside the context of litigation. These types of mechanisms include re-examination, post-grant review, inter 
partes review, interference proceedings, derivation proceedings, and equivalent proceedings in foreign jurisdictions (e.g., opposition proceedings). These 
types of proceedings could result in revocation or amendment to our patents such that they no longer cover our product candidates. The outcome for any 
particular patent following legal assertions of invalidity and unenforceability is unpredictable. With respect to the validity question, for example, we cannot 
be certain that there is no invalidating prior art, of which we, our licensors, our patent counsel and the patent examiner were unaware during prosecution. If 
a defendant were to prevail on a legal assertion of invalidity and/or unenforceability, or if we are otherwise unable to adequately protect our rights, we 
would lose at least part, and perhaps all, of the patent protection on our technology and/or product candidates. Defense of these types of claims, regardless 
of their merit, would involve substantial litigation expense and would be a substantial diversion of employee resources from our business. 

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Conversely, we may choose to challenge the patentability of claims in a third party’s U.S. patent by requesting that the USPTO review the patent claims in 
re-examination, post-grant review, inter partes review, interference proceedings, derivation proceedings, and equivalent proceedings in foreign jurisdictions 
(e.g., opposition proceedings). We are currently challenging, and in the future may choose to challenge, third party patents in patent opposition proceedings 
in the EPO or another foreign patent office. Even if successful, the costs of these opposition proceedings could be substantial, and may consume our time or 
other resources. If we fail to obtain a favorable result at the USPTO, EPO or other patent office then we may be exposed to litigation by a third party 
alleging that the patent may be infringed by our product candidates, base editing platform technology, delivery platform technology or other or proprietary 
technologies. 

For example, as discussed above, elements of the University of California patent portfolio are being opposed in Europe by multiple parties and we are 
participating in the opposition proceedings. The EPO Opposition Division, or the Opposition Division, has initiated opposition proceedings against 
European patents estimated to expire in March 2033 (excluding any patent term adjustments or extensions) and co-owned by the University of California. 
The opposition procedure before the EPO allows one or more third parties to challenge the validity of a granted European patent within nine months after 
grant date of the European patent. Opposition proceedings may involve issues including, but not limited to, priority, patentability of the claims involved, 
and procedural formalities related to the filing of the patent application. As a result of the opposition proceedings, the Opposition Division can revoke a 
patent, maintain the patent as granted, or maintain the patent in an amended form. It is uncertain when or in what manner the Opposition Division will act 
on the opposition proceedings of these European patents. If these patents are maintained by the Opposition Division with claims similar to those that are 
currently opposed, our ability to commercialize our product candidates may be adversely affected if we do not obtain a license to these patents. We may not 
be able to obtain any required license on commercially reasonable terms or at all. Even if we were able to obtain a license, it could be nonexclusive, thereby 
giving our competitors and other third parties access to the same technologies licensed to us, and it could require us to make substantial licensing and 
royalty payments. If we are unable to obtain a necessary license to a third-party patent on commercially reasonable terms, we may be unable to 
commercialize our base editing platform technology, delivery platform technology or product candidates or such commercialization efforts may be 
significantly delayed, which could in turn significantly harm our business. 

Even if resolved in our favor, litigation or other legal proceedings relating to intellectual property claims may cause us to incur significant expenses and 
could distract our personnel from their normal responsibilities. Furthermore, because of the substantial amount of discovery required in connection with 
intellectual property litigation, there is a risk that some of our confidential information could be compromised by disclosure during this type of litigation. In 
addition, there could be public announcements of the results of hearings, motions, or other interim proceedings or developments, and if securities analysts 
or investors perceive these results to be negative, it could have a substantial adverse effect on the price of our common stock. Such litigation or proceedings 
could substantially increase our operating losses and reduce the resources available for development activities or any future sales, marketing, or distribution 
activities. We may not have sufficient financial or other resources to conduct such litigation or proceedings adequately. Some of our competitors may be 
able to sustain the costs of such litigation or proceedings more effectively than we can because of their greater financial resources and more mature and 
developed intellectual property portfolios. Uncertainties resulting from the initiation and continuation of patent litigation or other proceedings could have a 
material adverse effect on our ability to compete in the marketplace. 

Obtaining and maintaining our patent protection depends on compliance with various procedural, document submission, fee payment, and other 
requirements imposed by government patent agencies, and our patent protection could be reduced or eliminated for non-compliance with these 
requirements. 

Periodic maintenance fees, renewal fees, annuity fees, and various other government fees on patents and applications are due to be paid to the USPTO and 
foreign patent agencies outside of the United States over the lifetime of our owned or licensed patents and applications. In certain circumstances, we rely on 
our licensing partners to pay these fees due to U.S. and non-U.S. patent agencies. The USPTO and foreign patent agencies require compliance with several 
procedural, documentary, fee payment, and other similar provisions during the patent application process. We are also dependent on our licensors to take 
the necessary action to comply with these requirements with respect to our licensed intellectual property. While an inadvertent lapse can be cured by 
payment of a late fee or by other means in accordance with the applicable rules, there are situations, however, in which non-compliance can result a partial 
or complete loss of patent rights in the relevant jurisdiction. Were a noncompliance event to occur, our competitors might be able to enter the market with 
similar or identical products or technology, which could have a material adverse effect on our business, financial condition, results of operations, and 
prospects. 

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Changes in patent law in the United States and in non-U.S. jurisdictions could diminish the value of patents in general, thereby impairing our ability to 
protect our platform technologies and product candidates. 

As is the case with other biotech and pharmaceutical companies, our success is heavily dependent on intellectual property, particularly patents. Obtaining 
and enforcing patents in the biopharmaceutical industry involve both technological and legal complexity, and is therefore costly, time-consuming and 
inherently uncertain. 

Changes in either the patent laws or interpretation of the patent laws could increase the uncertainties and costs surrounding the prosecution of patent 
applications and the enforcement or defense of our issued patents. For example, in March 2013, under the Leahy-Smith America Invents Act, or the 
America Invents Act, the United States transitioned from a “first to invent” to a “first-to-file” patent system. Under a “first-to-file” system, assuming that 
other requirements for patentability are met, the first inventor to file a patent application generally will be entitled to a patent on an invention regardless of 
whether another inventor had made the invention earlier. A third party that files a patent application in the USPTO after March 2013, but before us could 
therefore be awarded a patent covering an invention of ours even if we had made the invention before it was made by such third party. This will require us 
to be cognizant going forward of the time from invention to filing of a patent application. Since patent applications in the United States and most other 
countries are confidential for a period of time after filing or until issuance, we cannot be certain that we or our licensors were the first to either file any 
patent application related to our technology or product candidates or invent any of the inventions claimed in our or our licensor’s patents or patent 
applications. The America Invents Act also includes a number of other significant changes to U.S. patent law, including provisions that affect the way 
patent applications are prosecuted, allowing third party submission of prior art and establish a new post-grant review system including post-grant review, 
inter partes review, and derivation proceedings. Because of a lower evidentiary standard in USPTO proceedings compared to the evidentiary standard in 
United States federal courts necessary to invalidate a patent claim, a third party could potentially provide evidence in a USPTO proceeding sufficient for 
the USPTO to hold a claim invalid even though the same evidence would be insufficient to invalidate the claim if first presented in a district court action. 
Accordingly, a third party may attempt to use the USPTO procedures to invalidate our patent claims that would not have been invalidated if first challenged 
by the third party as a defendant in a district court action. The effects of some of these changes are currently unclear as the USPTO continues to promulgate 
new regulations and procedures in connection with the America Invents Act. In addition, the courts have yet to address many of these provisions and the 
applicability of the act and new regulations on the specific patents discussed in this filing have not been determined and would need to be reviewed. 
However, the America Invents Act and its implementation could increase the uncertainties and costs surrounding the prosecution of our patent applications 
and the enforcement or defense of our issued patents. 

In addition, recent U.S. Supreme Court rulings have narrowed the scope of patent protection available in certain circumstances and weakened the rights of 
patent owners in certain situations. In addition to increasing uncertainty with regard to our ability to obtain patents in the future, this combination of events 
has created uncertainty with respect to the validity and enforceability of patents, once obtained. Depending on future actions by the U.S. Congress, the 
federal courts, and the USPTO, the laws and regulations governing patents could change in unpredictable ways that could weaken our ability to obtain new 
patents or to enforce our existing patents and patents that we might obtain in the future. For example, in the case, Assoc. for Molecular Pathology v. Myriad 
Genetics, Inc., the U.S. Supreme Court held that certain claims to DNA molecules are not patentable. We cannot predict how this and future decisions by 
the courts, the U.S. Congress or the USPTO may impact the value of our patents. Any similar adverse changes in the patent laws of other jurisdictions 
could also have a material adverse effect on our business, financial condition, results of operations and prospects. 

Patent terms may be inadequate to protect our competitive position on our product candidates for an adequate amount of time. 

Patents have a limited lifespan. The terms of individual patents depend upon the legal term for patents in the countries in which they are granted. In most 
countries, including the United States, if all maintenance fees are timely paid, the natural expiration of a patent is generally 20 years from its earliest non-
provisional filing date in the applicable country. However, the actual protection afforded by a patent varies from country to country, and depends upon 
many factors, including the type of patent, the scope of its coverage, the availability of regulatory-related extensions, the availability of legal remedies in a 
particular country and the validity and enforceability of the patent. Various extensions including PTE and PTA, may be available, but the life of a patent, 
and the protection it affords, is limited. Even if patents covering our product candidates are obtained, once the patent life has expired, we may be open to 
competition from competitive products, including generics. Given the amount of time required for the development, testing and regulatory review of new 
product candidates, patents protecting our product candidates might expire before or shortly after we or our partners commercialize those candidates. As a 
result, our owned and licensed patent portfolio may not provide us with sufficient rights to exclude others from commercializing products similar or 
identical to ours. 

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If we do not obtain PTE and data exclusivity for any product candidates we may develop, our business may be materially harmed. 

Depending upon the timing, duration and specifics of any FDA marketing approval of any product candidates we may develop, one or more of our U.S. 
patents may be eligible for limited PTE under the Drug Price Competition and Patent Term Restoration Act of 1984, or the Hatch-Waxman Amendments. 
The Hatch-Waxman Amendments PTE term of up to five years as compensation for patent term lost during the FDA regulatory review process. A PTE 
cannot extend the remaining term of a patent beyond a total of 14 years from the date of product approval, only one patent per product may be extended 
and only those claims covering the approved drug, a method for using it, or a method for manufacturing it may be extended. However, even if we were to 
seek a PTE, it may not be granted because of, for example, the failure to exercise due diligence during the testing phase or regulatory review process, the 
failure to apply within applicable deadlines, the failure to apply prior to expiration of relevant patents, or any other failure to satisfy applicable 
requirements. Moreover, the applicable time period or the scope of patent protection afforded could be less than we request. If we are unable to obtain PTE 
or term of any such extension is less than we request, our competitors may obtain approval of competing products following our patent expiration, and our 
business, financial condition, results of operations, and prospects could be materially harmed. 

If we are unable to protect the confidentiality of our trade secrets, our business and competitive position would be harmed. 

In addition to seeking patents for our technology and product candidates, we also rely on know-how and trade secret protection, as well as confidentiality 
agreements, non-disclosure agreements and invention assignment agreements with our employees, consultants and third parties, to protect our confidential 
and proprietary information, especially where we do not believe patent protection is appropriate or obtainable. 

It is our policy to require our employees, corporate collaborators, outside scientific collaborators, CROs, contract manufacturers, consultants, advisors, and 
other third parties to execute confidentiality agreements upon the commencement of employment or consulting relationships with us. These agreements 
provide that all confidential information concerning our business or financial affairs developed by or made known to the individual or entity during the 
course of the party’s relationship with us is to be kept confidential and not disclosed to third parties, except in certain specified circumstances. In the case of
employees, the agreements provide that all inventions conceived by the individual, and that are related to our current or planned business or research and 
development or made during normal working hours, on our premises or using our equipment or proprietary information, are our exclusive property. In the 
case of consultants and other third parties, the agreements provide that all inventions conceived in connection with the services provided are our exclusive 
property. However, we cannot guarantee that we have entered into such agreements with each party that may have or have had access to our trade secrets or 
proprietary technology and processes. Additionally, the assignment of intellectual property rights may not be self-executing, or the assignment agreements 
may be breached, and we may be forced to bring claims against third parties, or defend claims that they may bring against us, to determine the ownership of
what we regard as our intellectual property. Any of these parties may breach the agreements and disclose our proprietary information, including our trade 
secrets, and we may not be able to obtain adequate remedies for such breaches. Enforcing a claim that a party illegally disclosed or misappropriated a trade 
secret is difficult, expensive, and time-consuming, and the outcome is unpredictable. 

In addition to contractual measures, we try to protect the confidential nature of our proprietary information through other appropriate precautions, such as 
physical and technological security measures. However, trade secrets and know-how can be difficult to protect. These measures may not, for example, in 
the case of misappropriation of a trade secret by an employee or third party with authorized access, provide adequate protection for our proprietary 
information. Our security measures may not prevent an employee or consultant from misappropriating our trade secrets and providing them to a competitor, 
and any recourse we might take against this type of misconduct may not provide an adequate remedy to protect our interests fully. In addition, trade secrets 
may be independently developed by others in a manner that could prevent us from receiving legal recourse. If any of our confidential or proprietary 
information, such as our trade secrets, were to be disclosed or misappropriated, or if any of that information was independently developed by a competitor, 
our competitive position could be harmed. 

In addition, some courts inside and outside the United States are sometimes less willing or unwilling to protect trade secrets. If we choose to go to court to 
stop a third party from using any of our trade secrets, we may incur substantial costs. Even if we are successful, these types of lawsuits may consume our 
time and other resources. Any of the foregoing could have a material adverse effect on our business, financial condition, results of operations and 
prospects. 

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Third parties have asserted and may in the future assert that we, our employees, consultants, or advisors have wrongfully used or disclosed confidential 
information or misappropriated trade secrets. 

As is common in the biotechnology and pharmaceutical industries, we employ individuals that are currently or were previously employed at universities, 
research institutions or other biotechnology or pharmaceutical companies, including our competitors or potential competitors. In addition, we regularly 
enter into non-disclosure and confidentiality agreements to protect the proprietary positions of third parties, such as research institutions, outside scientific 
collaborators, CROs, third-party manufacturers, consultants, advisors, potential partners and other third parties in order to evaluate technology for potential 
development. Although we try to ensure that we and our employees, consultants, and advisors do not use the proprietary information or know-how of 
others, we have received and may in the future be subject to claims that we or these individuals have inadvertently or otherwise wrongfully used or 
disclosed intellectual property, including trade secrets or other proprietary information, of third parties, including any such individual’s current or former 
employer. Also, we have in the past and may in the future be subject to claims that these individuals are violating non-compete agreements with their 
former employers. We may then have to pursue litigation to defend against any of these claims. If we fail in defending any such claims, in addition to 
paying monetary damages, we may lose valuable intellectual property rights or personnel. Even if we are successful in defending against such claims, 
litigation could result in substantial costs and be a distraction to our technical and management personnel from their normal responsibilities. In addition, 
there could be public announcements of the results of hearings, motions or other interim proceedings or developments, and, if securities analysts or 
investors perceive these results to be negative, that perception could have a substantial adverse effect on the price of our common stock. This type of 
litigation or proceeding could substantially increase our operating losses and reduce our resources available for development activities, and we may not 
have sufficient financial or other resources to adequately conduct this type of litigation or proceedings. For example, some of our competitors may be able 
to sustain the costs of this type of litigation or proceedings more effectively than we can because of their substantially greater financial resources. In any 
case, uncertainties resulting from the initiation and continuation of intellectual property litigation or other intellectual property related proceedings could 
adversely affect our ability to compete in the marketplace.

For example, we received correspondence from a research institution regarding a confidentiality agreement between such institution and us. The 
confidentiality agreement related to certain technology that we evaluated for development in connection with certain of our programs. The correspondence 
alleges that we breached the terms of the confidentiality agreement, misappropriated trade secret and other confidential information of such institution, 
engaged in unfair and deceptive trade practices, and were unjustly enriched in connection with developing our therapeutics, including BEAM-102 and our 
Alpha-1 Antitrypsin Deficiency therapeutic candidate (which we now refer to as BEAM-302). The research institution claims that it is entitled to monetary 
damages (including damages for the apportioned value of our company and enhanced damages for an alleged willful violation) and certain ongoing royalty 
and/or milestone payments related to the technology that is the subject of the alleged breaches of contract, among other possible remedies. We made a 
settlement proposal, which was rejected, and we expect to continue to engage in communication with the research institution. We cannot predict whether 
we will be able to reach a settlement relating to such claims or whether we would prevail in any litigation or action related to them. Moreover, any litigation 
may result in negative publicity, regardless of its outcome, and may subject us to significant liability for monetary damages and have a material adverse 
effect on our business, financial position, and results of operations. For further information, see Note 6 of the notes to our consolidated financial statements 
included elsewhere in this Annual Report on Form 10-K.

If our trademarks and trade names are not adequately protected, then we may not be able to build name recognition in our markets of interest and our 
business may be adversely affected. 

Our registered or unregistered trademarks or trade names may be challenged, infringed, circumvented or declared generic or determined to be infringing on 
other marks. We may not be able to protect our rights to these trademarks and trade names, which we need to build name recognition among potential 
partners or customers in our markets of interest. At times, competitors or other third parties may adopt trade names or trademarks similar to ours, thereby 
impeding our ability to build brand identity and possibly leading to market confusion. In addition, there could be potential trade name or trademark 
infringement claims brought by owners of other registered trademarks or trademarks that incorporate variations of our registered or unregistered trademarks 
or trade names. Over the long term, if we are unable to establish name recognition based on our trademarks and trade names, then we may not be able to 
compete effectively, and our business may be adversely affected. Our efforts to enforce or protect our proprietary rights related to trademarks, trade secrets, 
domain names, copyrights or other intellectual property may be ineffective and could result in substantial costs and diversion of resources and could 
adversely affect our business, financial condition, results of operations and growth prospects. 

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Intellectual property rights do not necessarily address all potential threats. 

The degree of future protection afforded by our intellectual property rights is uncertain because intellectual property rights have limitations and may not 
adequately protect our business or permit us to maintain our competitive advantage. For example: 

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any product candidates we may develop will eventually become commercially available in generic or biosimilar product forms; 

others may be able to make gene therapy products that are similar to any product candidates we may develop or utilize similar base editing 
technology but that are not covered by the claims of the patents that we license or may own in the future; 

we, or our license partners or current or future collaborators, might not have been the first to make the inventions covered by the issued 
patent or pending patent application that we license or may own in the future; 

we, or our license partners or current or future collaborators, might not have been the first to file patent applications covering certain of our or 
their inventions; 

we, or our license partners or current or future collaborators, may fail to meet our obligations to the U.S. government regarding any in-
licensed patents and patent applications funded by U.S. government grants, leading to the loss or unenforceability of patent rights; 

others may independently develop similar or alternative technologies or duplicate any of our technologies without infringing our owned or 
licensed intellectual property rights; 

it is possible that our pending, owned or licensed patent applications or those that we may own in the future will not lead to issued patents; 

it is possible that there are prior public disclosures that could invalidate our owned or in-licensed patents, or parts of our owned or in-licensed 
patents; 

it is possible that there are unpublished applications or patent applications maintained in secrecy that may later issue with claims covering our 
product candidates or technology similar to ours; 

it is possible that our owned or in-licensed patents or patent applications omit individual(s) that should be listed as inventor(s) or include 
individual(s) that should not be listed as inventor(s), which may cause these patents or patents issuing from these patent applications to be 
held invalid or unenforceable; 

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issued patents that we hold rights to may be held invalid, unenforceable, or narrowed in scope, including as a result of legal challenges by our 
competitors; 

the claims of our owned or in-licensed issued patents or patent applications, if and when issued, may not cover our product candidates; 

the laws of foreign countries may not protect our proprietary rights or the proprietary rights of license partners or current or future 
collaborators to the same extent as the laws of the United States; 

the inventors of our owned or in-licensed patents or patent applications may become involved with competitors, develop products or 
processes that design around our patents, or become hostile to us or the patents or patent applications on which they are named as inventors; 

our competitors might conduct research and development activities in countries where we do not have patent rights and then use the 
information learned from such activities to develop competitive products for sale in our major commercial markets; 

we have engaged in scientific collaborations in the past and will continue to do so in the future and our collaborators may develop adjacent or 
competing products that are outside the scope of our patents; 

we may not develop additional proprietary technologies that are patentable; 

any product candidates we develop may be covered by third parties’ patents or other exclusive rights; 

the patents of others may harm our business; or 

we may choose not to file a patent in order to maintain certain trade secrets or know-how, and a third party may subsequently file a patent 
covering such intellectual property. 

Should any of these events occur, they could have a material adverse effect on our business, financial condition, results of operations, and prospects. 

Risks related to regulatory and other legal compliance matters 

Regulatory requirements governing genetic medicines, and in particular any novel genetic medicines we may develop, have changed frequently and 
may continue to change in the future.

Regulatory requirements governing genetic and cellular medicines, and in particular any novel genetic medicine products we may develop, have changed 
frequently and may continue to change in the future. We are aware of a limited number of genetic medicines that have received marketing authorization 
from the FDA and EMA. Even with respect to more established products in the genetic medicine field, the regulatory landscape is still developing. For 
example, the FDA has established the Office of Tissues and Advanced Therapies (formerly the Office of Cellular, Tissue and Gene Therapies) within 
CBER to consolidate the review of genetic medicines and related products, and the Cellular, Tissue and Gene Therapies Advisory Committee to advise 
CBER on its review. Genetic medicine clinical trials conducted at institutions that receive funding for recombinant DNA research from the NIH also are 
potentially subject to review by the Office of Biotechnology Activities’ Recombinant DNA Advisory Committee, or the RAC; however, the NIH 
announced that the RAC will only publicly review clinical trials if the trials cannot be evaluated by standard oversight bodies and pose unusual risks.

The same applies in the European Union, or EU. The EMA’s Committee for Advanced Therapies, or CAT, is responsible for assessing the quality, safety 
and efficacy of advanced-therapy medicinal products. The role of the CAT is to prepare a draft opinion on an application for marketing authorization for a 
genetic medicinal candidate that is submitted to the CHMP before CHMP adopts its final opinion. In the EU, the development and evaluation of a genetic 
medicinal product must be considered in the context of the relevant EU guidelines. The EMA may issue new guidelines concerning the development and 
marketing authorization for genetic medicinal products and require that we comply with these new guidelines. As a result, the procedures and standards 
applied to genetic medicines and cell therapy products may be applied to any product candidates we may develop, but that remains uncertain at this point.

These regulatory review committees and advisory groups and the new guidelines they promulgate may lengthen the regulatory review process, require us to 
perform additional studies, increase our development costs, lead to changes in regulatory positions and interpretations, delay or prevent approval and 
commercialization of any product candidates we may develop or lead to significant post-approval limitations or restrictions. As we advance any product 
candidates we may develop, we will be required to consult with these regulatory and advisory groups and comply with applicable guidelines. If we fail to 
do so, we may be required to delay or discontinue development of these product candidates. Delay or failure to obtain, or unexpected costs in obtaining, the 
regulatory approval necessary to bring a potential product to market could decrease our ability to generate sufficient product revenue to maintain our 
business.

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Although the FDA decides whether individual genetic medicine protocols may proceed, the RAC public review process, if undertaken, can delay the 
initiation of a clinical trial, even if the FDA has reviewed the trial design and details and approved its initiation. Conversely, the FDA can put an IND on a 
clinical hold even if the RAC has provided a favorable review or an exemption from in-depth, public review. If we were to engage an NIH-funded 
institution to conduct a clinical trial, that institution’s IBC as well as its IRB would need to review the proposed clinical trial to assess the safety of the trial. 
In addition, adverse developments in clinical trials of genetic medicine products conducted by others may cause the FDA or other oversight bodies to 
change the requirements for approval of any product candidates we may develop. Similarly, the EMA may issue new guidelines concerning the 
development and marketing authorization for genetic medicine products and require that we comply with these new guidelines.

As we are initially seeking to identify and develop product candidates to treat diseases using novel technologies, there is heightened risk that the FDA, the 
EMA or other regulatory authority may not consider the clinical trial endpoints that we propose to provide clinically meaningful results. Even if the 
endpoints are deemed clinically meaningful, we may not achieve these endpoints to a degree of statistical significance, particularly because many of the 
diseases we are targeting with our platform, including T-cell acute lymphoblastic leukemia, glycogen storage disorder and Stargardt disease, have small 
patient populations, making development of large and rigorous clinical trials more difficult. Further, even if we do achieve the pre-specified criteria, we 
may produce results that are unpredictable or inconsistent with the results of the non-primary endpoints or other relevant data. The FDA also weighs the 
benefits of a product against its risks, and the FDA may view the efficacy results in the context of safety as not being supportive of regulatory approval. 
Other regulatory authorities in the EU and other countries may make similar comments with respect to these endpoints and data. Any product candidates 
we may develop will be based on a novel technology that makes it difficult to predict the time and cost of development and of subsequently obtaining 
regulatory approval. No gene editing therapeutic product has been approved in the United States or in Europe, and only a limited number of gene therapy 
products have received marketing authorization or marketing approval from the European Commission or the FDA. Some of these products have taken 
years to register and have had to address significant issues in their post-marketing experience. 

Adverse developments in post-marketing experience or in clinical trials conducted by others of genetic medicines or cell therapy products may cause the 
FDA, the EMA, and other regulatory bodies to revise the requirements for development or approval of any product candidates we may develop or limit the 
use of products utilizing non-viral genetic medicinal technologies, either of which could materially harm our business. In addition, the clinical trial 
requirements of the FDA, the EMA, and other regulatory authorities and the criteria these regulators use to determine the safety and efficacy of a product 
candidate vary substantially according to the type, complexity, novelty and intended use and market of the potential products. The regulatory approval 
process for novel product candidates such as the product candidates we may develop can be more expensive and take longer than for other, better known or 
more extensively studied pharmaceutical or other product candidates. Regulatory agencies administering existing or future regulations or legislation may 
not allow production and marketing of products utilizing non-viral genetic medicine technology in a timely manner or under technically or commercially 
feasible conditions. In addition, regulatory action or private litigation could result in expenses, delays or other impediments to our research programs or the 
commercialization of resulting products.

In addition, ethical, social and legal concerns about genetic medicine, genetic testing and genetic research could result in additional regulations or 
prohibiting the processes we may use. Federal and state agencies, congressional committees and foreign governments have expressed their intentions to 
further regulate biotechnology. More restrictive regulations or claims that any product candidates we may develop are unsafe or pose a hazard could 
prevent us from commercializing any products. New government requirements may be established that could delay or prevent regulatory approval of any 
product candidates we may develop under development. It is impossible to predict whether legislative changes will be enacted, regulations, policies or 
guidance changed, or interpretations by agencies or courts changed, or what the impact of such changes, if any, may be.

As we advance any product candidates we develop through clinical development, we will be required to consult with these regulatory and advisory groups, 
and comply with applicable guidelines. These regulatory review committees and advisory groups and any new guidelines they promulgate may lengthen 
the regulatory review process, require us to perform additional studies, increase our development costs, lead to changes in regulatory positions and 
interpretations, delay or prevent approval and commercialization of any product candidates we may develop or lead to significant post-approval limitations 
or restrictions. Delay or failure to obtain, or unexpected costs in obtaining, the regulatory approval necessary to bring a potential product to market could 
decrease our ability to generate sufficient product revenue.

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Even if we complete the necessary preclinical studies and clinical trials, the marketing approval process is expensive, time-consuming, and uncertain 
and may prevent us from obtaining approvals for the commercialization of any product candidates we may develop. If we are not able to obtain, or if 
there are delays in obtaining, required regulatory approvals, we will not be able to commercialize, or will be delayed in commercializing, product 
candidates we may develop, and our ability to generate revenue will be materially impaired. 

Any product candidates we may develop and the activities associated with their development and commercialization, including their design, testing, 
manufacture, recordkeeping, labeling, storage, approval, advertising, promotion, sale, import, export, and distribution, are subject to comprehensive 
regulation by the FDA, the EMA and other regulatory authorities in the United States and by comparable authorities in other countries. Failure to obtain 
marketing approval for a product candidate will prevent us from commercializing the product candidate in a given jurisdiction. We have not received 
approval to market any product candidates from regulatory authorities in any jurisdiction. We have only limited experience in filing and supporting the 
applications necessary to gain marketing approvals and expect to rely on third parties to assist us in this process. Securing regulatory approval requires the 
submission of extensive preclinical and clinical data and supporting information to the various regulatory authorities for each therapeutic indication to 
establish the biological product candidate’s safety, purity, and potency. Securing regulatory approval also requires the submission of extensive information 
about the product manufacturing process, and inspection of manufacturing facilities by, the relevant regulatory authority. Any product candidates we 
develop may not be effective, may be only moderately effective, or may prove to have undesirable or unintended side effects, toxicities, or other 
characteristics that may preclude our obtaining marketing approval or prevent or limit commercial use. 

The process of obtaining marketing approvals, both in the United States and abroad, is expensive, may take many years if approval is obtained at all, and 
can vary substantially based upon a variety of factors, including the type, complexity, and novelty of the product candidates involved. Changes in 
marketing approval policies during the development period, changes in or the enactment of additional statutes or regulations, or changes in regulatory 
review for each submitted product application, may cause delays in the approval or rejection of an application. The FDA and comparable authorities in 
other countries have substantial discretion in the approval process and may refuse to accept any application or may decide that our data is insufficient for 
approval and require additional preclinical, clinical, or other studies. In addition, varying interpretations of the data obtained from preclinical and clinical 
testing could delay, limit, or prevent marketing approval of a product candidate. Any marketing approval we ultimately obtain may be limited or subject to 
restrictions or post-approval commitments that render the approved medicine not commercially viable. 

If we experience delays in obtaining approval or if we fail to obtain approval of any product candidates we may develop, the commercial prospects for 
those product candidates may be harmed, and our ability to generate revenues will be materially impaired. 

Failure to obtain marketing approval in foreign jurisdictions would prevent any product candidates we may develop from being marketed in such 
jurisdictions, which, in turn, would materially impair our ability to generate revenue. 

In order to market and sell any product candidates we may develop in the EU and other foreign jurisdictions, we or our third-party collaborators must 
obtain separate marketing approvals (a single one for the EU) and comply with numerous and varying regulatory requirements. The approval procedure 
varies among countries and can involve additional testing. The time required to obtain approval may differ substantially from that required to obtain FDA 
approval. The regulatory approval process outside the United States generally includes all of the risks associated with obtaining FDA approval. In addition, 
in many countries outside the United States, it is required that the product candidate be approved for reimbursement before the product candidate can be 
approved for sale in that country. We or these third parties may not obtain approvals from regulatory authorities outside the United States on a timely basis, 
if at all. Approval by the FDA does not ensure approval by regulatory authorities in other countries or jurisdictions, and approval by one regulatory 
authority outside the United States does not ensure approval by regulatory authorities in other countries or jurisdictions or by the FDA. We may not be able 
to file for marketing approvals and may not receive necessary approvals to commercialize our medicines in any jurisdiction, which would materially impair 
our ability to generate revenue. 

In addition, following the result of a referendum in 2016, the United Kingdom left the EU on January 31, 2020, commonly referred to as Brexit. After lapse 
of a transition period, the United Kingdom is no longer part of the European Single Market and European Union Customs Union as of January 1, 2021. A 
trade and cooperation agreement that outlines the future trading relationship between the United Kingdom and the EU was agreed to in December 2020 and 
entered into force on May 1, 2021. As of January 1, 2021, the MHRA became responsible for supervising medicines and medical devices in Great Britain, 
comprising England, Scotland and Wales under domestic law, whereas Northern Ireland will continue to be subject to EU rules under the Northern Ireland 
Protocol. The MHRA will rely on the HMR as the basis for regulating medicines. The HMR has incorporated into the domestic law of the body of EU law 
instruments governing medicinal products that pre-existed prior to the United Kingdom’s withdrawal from the EU. Since a significant proportion of the 
regulatory framework for pharmaceutical products in the United Kingdom covering the quality, safety, and efficacy of pharmaceutical products, clinical 
trials, marketing authorization, commercial sales, and distribution of pharmaceutical products is derived from EU directives and regulations.

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Brexit may have a material impact upon the regulatory regime with respect to the development, manufacture, importation, approval and commercialization 
of our product candidates in the United Kingdom. For example, the United Kingdom is no longer covered by the centralized procedures for obtaining EU-
wide marketing authorization from the EMA, and a separate marketing authorization will be required to market our product candidates in the United 
Kingdom. Until December 31, 2023, it is possible for the MHRA to rely on a decision taken by the European Commission on the approval of a new 
marketing authorization via the centralized procedure. However, it is unclear whether the MHRA in the United Kingdom is sufficiently prepared to handle 
the increased volume of marketing authorization applications that it is likely to receive after such time. Any delay in obtaining, or an inability to obtain, any 
marketing approvals, as a result of Brexit or otherwise, may force us to restrict or delay efforts to seek regulatory approval in the United Kingdom for our 
product candidates, which could significantly and materially harm our business.

Even if we, or any collaborators we may have, obtain marketing approvals for any product candidates we develop, the terms of approvals and ongoing 
regulation of our product candidates could require the substantial expenditure of resources and may limit how we, or they, manufacture and market 
our product candidates, which could materially impair our ability to generate revenue. 

Any product candidate for which we obtain marketing approval, along with the manufacturing processes, post-approval clinical data, labeling, advertising, 
and promotional activities for such medicine, will be subject to continual requirements of and review by the FDA, EMA and other regulatory authorities. 
These requirements include submissions of safety and other post-marketing information and reports, facility registration and drug listing requirements, 
cGMP requirements relating to quality control, quality assurance and corresponding maintenance of records and documents, and requirements regarding the 
distribution of samples to physicians and recordkeeping. Even if marketing approval of a product candidate is granted, the approval may be subject to 
limitations on the indicated uses for which the medicine may be marketed or to the conditions of approval, or contain requirements for costly post-
marketing testing and surveillance to monitor the safety or efficacy of the medicine. 

Accordingly, assuming we, or any collaborators we may have, receive marketing approval for one or more product candidates we develop, we, and such 
collaborators, and our and their contract manufacturers will continue to expend time, money, and effort in all areas of regulatory compliance, including 
manufacturing, production, product surveillance, and quality control. If we and such collaborators are not able to comply with post-approval regulatory 
requirements, we and such collaborators could be subject to enforcement actions or have the marketing approvals for our products withdrawn by regulatory 
authorities and our, or such collaborators’, ability to market any future products could be limited, which could adversely affect our ability to achieve or 
sustain profitability. Further, the cost of compliance with post-approval regulations may have a negative effect on our business, operating results, financial 
condition, and prospects. 

Any product candidate for which we obtain marketing approval could be subject to restrictions or withdrawal from the market, and we may be subject 
to substantial penalties if we fail to comply with regulatory requirements or if we experience unanticipated problems with our medicines, when and if 
any of them are approved. 

The FDA, the EMA, and other regulatory agencies closely regulate the post-approval marketing and promotion of medicines to ensure that they are 
marketed only for the approved indications and in accordance with the provisions of the approved labeling. The FDA, the EMA and other regulatory 
agencies impose stringent restrictions on manufacturers’ communications regarding off-label use, and if we market our medicines for off-label use, we may 
be subject to enforcement action for off-label marketing by the FDA and other federal and state enforcement agencies, including the Department of Justice. 
Violation of the Federal Food, Product, and Cosmetic Act and other statutes, including the False Claims Act, and equivalent legislation in other countries 
relating to the promotion and advertising of prescription products may also lead to investigations or allegations of violations of federal and state and other 
countries’ health care fraud and abuse laws and state consumer protection laws. Even if it is later determined we were not in violation of these laws, we 
may be faced with negative publicity, incur significant expenses defending our actions and have to divert significant management resources from other 
matters. 

In addition, later discovery of previously unknown problems with our medicines, manufacturers, or manufacturing processes, or failure to comply with 
regulatory requirements, may yield various negative consequences, including: 

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restrictions on such medicines, manufacturers, or manufacturing processes; 

restrictions on the labeling or marketing of a medicine; 

restrictions on the distribution or use of a medicine; 

requirements to conduct post-marketing clinical trials; 

receipt of warning or untitled letters; 

withdrawal of the medicines from the market; 

refusal to approve pending applications or supplements to approved applications that we submit; 

recall of medicines; 

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fines, restitution, or disgorgement of profits or revenue; 

restrictions on future procurements with governmental authorities; 

suspension or withdrawal of marketing approvals; 

suspension of any ongoing clinical trials; 

refusal to permit the import or export of our medicines; 

product seizure; and 

injunctions or the imposition of civil or criminal penalties. 

Any government investigation of alleged violations of law could require us to expend significant time and resources in response and could generate 
negative publicity. The occurrence of any event or penalty described above may inhibit our ability to commercialize any product candidates we may 
develop and adversely affect our business, financial condition, results of operations, and prospects. 

Fast track, breakthrough, or regenerative medicine advanced therapy designation by the FDA may not actually lead to a faster development or 
regulatory review or approval process and does not assure FDA approval of any product candidates we may develop. 

FDA’s fast track, breakthrough, and regenerative medicine advanced therapy, or RMAT, programs are intended to expedite the development of certain 
qualifying products intended for the treatment of serious diseases and conditions. If a product candidate is intended for the treatment of a serious or life-
threatening condition and preclinical or clinical data demonstrate the product’s potential to address an unmet medical need for this condition, the sponsor 
may apply for FDA fast track designation. A product candidate may be designated as a breakthrough therapy if it is intended to treat a serious or life-
threatening condition and preliminary clinical evidence indicates that the product candidate may demonstrate substantial improvement over existing 
therapies on one or more clinically significant endpoints. A product candidate may receive RMAT designation if it is a regenerative medicine therapy that is 
intended to treat, modify, reverse or cure a serious or life-threatening condition, and preliminary clinical evidence indicates that the product candidate has 
the potential to address an unmet medical need for such condition. While we may seek fast track, breakthrough, and/or RMAT designation, there is no 
guarantee that we will be successful in obtaining any such designation. Even if we do obtain such designation, we may not experience a faster development 
process, review or approval compared to conventional FDA procedures. A fast track, breakthrough, or RMAT designation does not ensure that the product 
candidate will receive marketing approval or that approval will be granted within any particular timeframe. In addition, the FDA may withdraw fast track, 
breakthrough, or RMAT designation if it believes that the designation is no longer supported by data from our clinical development program. Fast track, 
breakthrough, and/or RMAT designation alone do not guarantee qualification for the FDA’s priority review procedures. 

Priority review designation by the FDA may not lead to a faster regulatory review or approval process and, in any event, does not assure FDA approval 
of any product candidates we may develop. 

If the FDA determines that a product candidate is intended to treat a serious disease or condition and, if approved, would provide a significant improvement 
in the safety or effectiveness of the treatment, prevention, or diagnosis of such disease or condition, the FDA may designate the product candidate for 
priority review. A priority review designation means that the goal for the FDA to review a marketing application is six months from filing of the 
application, rather than the standard review period of ten months. We may request priority review for certain of our product candidates. The FDA has broad 
discretion with respect to whether or not to grant priority review status to a product candidate, so even if we believe a particular product candidate is 
eligible for such designation or status, the FDA may disagree and decide not to grant it. Moreover, a priority review designation does not necessarily mean 
a faster regulatory review process or necessarily confer any advantage with respect to approval compared to conventional FDA procedures. Receiving 
priority review from the FDA does not guarantee approval within the six-month review cycle or thereafter. 

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We may seek PRIME Designation in the EU for our product candidates, but we might not receive such designations, and even if we do, such 
designations may not lead to a faster development or regulatory review or approval process.

In the EU, we may seek PRIME designation for some of our product candidates in the future. PRIME is a voluntary program aimed at enhancing the 
EMA’s role to reinforce scientific and regulatory support in order to optimize development and enable accelerated assessment of new medicines that are of 
major public health interest with the potential to address unmet medical needs. The program focuses on medicines that target conditions for which there 
exists no satisfactory method of treatment in the EU or even if such a method exists, it may offer a major therapeutic advantage over existing treatments. 
PRIME is limited to medicines under development and not authorized in the EU and where the sponsor intends to apply for an initial marketing 
authorization application through the centralized procedure. To be accepted for PRIME, a product candidate must meet the eligibility criteria in respect of 
its major public health interest and therapeutic innovation based on information that is capable of substantiating the claims. The benefits of a PRIME 
designation include the appointment of a CHMP rapporteur to provide continued support and help to build knowledge ahead of a marketing authorization 
application, early dialogue and scientific advice at key development milestones, and the potential to qualify products for accelerated review, meaning 
reduction in the review time for an opinion on approvability to be issued earlier in the application process. PRIME enables a sponsor to request parallel 
EMA scientific advice and health technology assessment advice to facilitate timely market access. Even if we receive PRIME designation for any of our 
product candidates, the designation may not result in a materially faster development process, review or approval compared to conventional EMA 
procedures. Further, obtaining PRIME designation does not assure or increase the likelihood of EMA’s grant of a marketing authorization.

Inadequate funding for the FDA, the SEC and other government agencies, including from government shut downs, or other disruptions to these 
agencies’ operations, could hinder their ability to hire and retain key leadership and other personnel, prevent new products and services from being 
developed or commercialized in a timely manner or otherwise prevent those agencies from performing normal business functions on which the 
operation of our business may rely, which could negatively impact our business. 

The ability of the FDA to review and approve new products can be affected by a variety of factors, including government budget and funding levels, ability 
to hire and retain key personnel and accept the payment of user fees, and statutory, regulatory and policy changes. Average review times at the agency have 
fluctuated in recent years as a result. Disruptions at the FDA and other agencies may also slow the time necessary for new product candidates to be 
reviewed and/or approved by necessary government agencies, which would adversely affect our business. In addition, government funding of the SEC and 
other government agencies on which our operations may rely, including those that fund research and development activities, is subject to the political 
process, which is inherently fluid and unpredictable. 

Disruptions at the FDA and other agencies may also slow the time necessary for new product candidates to be reviewed and/or approved by necessary 
government agencies, which would adversely affect our business. For example, over the last several years the U.S. government has shut down several times 
and certain regulatory agencies, such as the FDA and the SEC, have had to furlough critical FDA, SEC and other government employees and stop critical 
activities. If a prolonged government shutdown occurs, it could significantly impact the ability of the FDA to timely review and process our regulatory 
submissions, which could have a material adverse effect on our business. Further, future government shutdowns could impact our ability to access the 
public markets and obtain necessary capital in order to properly capitalize and continue our operations. 

Separately, FDA operations have recently been disrupted due to the COVID-19 pandemic. In the event FDA operations are further disrupted, the FDA may 
not be able to ensure timely reviews of applications for medical products in line with its user fee performance goals. Regulatory authorities outside the U.S. 
may also experience delays in their regulatory activities as a result of the COVID-19 pandemic or other health emergencies. On January 30, 2023, the 
Biden Administration announced that it will end the public health emergency declarations related to COVID-19 on May 11, 2023. On January 31, 2023, the 
FDA indicated that it would soon issue a Federal Register notice describing how the termination of the public health emergency will impact the agency’s 
COVID-19 related guidance, including the clinical trial guidance and updates thereto. At this point, it is unclear how, if at all, these developments will 
impact our efforts to develop and commercialize our product candidates.

If an emergency related disruption occurs, it could significantly impact the ability of the FDA to timely review and process our regulatory submissions, 
which could have a material adverse effect on our business. Future emergency-related disruptions could also affect other government agencies such as the 
SEC, which may also impact our business by delaying review of our public filings, to the extent such review is necessary, and our ability to access the 
public markets.

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We may not be able to obtain orphan drug exclusivity for one or more of our product candidates, and even if we do, that exclusivity may not prevent the 
FDA or the EMA from approving other competing products. 

Under the Orphan Drug Act, the FDA may designate a product candidate as an orphan drug if it is a drug or biologic intended to treat a rare disease or 
condition. A similar regulatory scheme governs approval of orphan product candidates by the EMA in the EU. Generally, if a product with an orphan drug 
designation subsequently receives the first marketing approval for the indication for which it has such designation, the product is entitled to a period of 
marketing exclusivity, which precludes the FDA or the EMA from approving another marketing application for another product candidate for the same 
orphan therapeutic indication for that time period. The applicable period is seven years in the United States and ten years in the EU. The exclusivity period 
in the EU can be reduced to six years if a product no longer meets the criteria for orphan drug designation, in particular if the product is sufficiently 
profitable so that market exclusivity is no longer justified. 

The FDA’s standards for granting orphan drug exclusivity in the gene therapy context are unclear and evolving. For example, in September 2021, the FDA 
issued final guidance describing its current thinking on when a gene therapy product is the “same” as another product for purposes of orphan exclusivity. 
Under the guidance, if either the transgene or vector differs between two gene therapy products in a manner that does not reflect “minor” differences, the 
two products would be considered different drugs for orphan drug exclusivity purposes. The FDA will determine whether two vectors from the same viral 
class are the same on a case-by-case basis and may consider additional key features in assessing sameness. In addition, in order for the FDA to grant orphan
drug exclusivity to one of our product candidates, the agency must find that the product candidate is indicated for the treatment of a condition or disease 
that affects fewer than 200,000 individuals in the United States or that affects more than 200,000 individuals in the United States and for which there is no 
reasonable expectation that the cost of developing and making the product candidate available for the disease or condition will be recovered from sales of 
the product in the United States. The FDA may conclude that the condition or disease for which we seek orphan drug exclusivity does not meet this 
standard. Even if we obtain orphan drug exclusivity for a product candidate, that exclusivity may not effectively protect the product candidate from 
competition because different product candidates can be approved for the same condition. Orphan drug exclusivity may also be lost if the FDA or EMA 
determines that the request for designation was materially defective or if the manufacturer is unable to assure sufficient quantity of the product to meet the 
needs of the patients with the rare disease or condition. In addition, even after an orphan drug is approved, the FDA can subsequently approve the same 
drug for the same condition if the FDA concludes that the later product candidate is clinically superior in that it is shown to be safer, more effective or 
makes a major contribution to patient care compared with the product that has orphan exclusivity. 

On August 3, 2017, the Congress passed the FDA Reauthorization Act of 2017, or FDARA. FDARA, among other things, codified the FDA’s pre-existing 
regulatory interpretation, to require that a drug sponsor demonstrate the clinical superiority of an orphan drug that is otherwise the same as a previously 
approved drug for the same rare disease in order to receive orphan drug exclusivity. The new legislation reverses prior precedent holding that the Orphan 
Drug Act unambiguously requires that the FDA recognize the orphan exclusivity period regardless of a showing of clinical superiority. Further, under 
Omnibus legislation signed in December 2020, the requirement for a product to show clinical superiority applies to drugs and biologics that received 
orphan drug designation before enactment of FDARA in 2017, but have not yet been approved or licensed by the FDA. 

The FDA may further reevaluate the Orphan Drug Act and its regulations and policies. This may be particularly true in light of a decision from the Court of 
Appeals for the 11th Circuit in September 2021 finding that, for the purpose of determining the scope of exclusivity, the term “same disease or condition” 
means the designated “rare disease or condition” and could not be interpreted by the agency to mean the “indication or use.” Thus, the court concluded, 
orphan drug exclusivity applies to the entire designated disease or condition rather than the “indication or use.” Although there have been legislative 
proposals to overrule this decision, they have not been enacted into law. On January 23, 2023, the FDA announced that, in matters beyond the scope of that 
court order, the FDA will continue to apply its existing regulations tying orphan-drug exclusivity to the uses or indications for which the orphan drug was 
approved. We do not know if, when, or how the FDA or Congress may change the orphan drug regulations and policies in the future, and it is uncertain 
how any changes might affect our business. Depending on what changes the FDA may make to its orphan drug regulations and policies, our business could 
be adversely impacted.  

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Our relationships with healthcare providers, physicians, and third-party payors will be subject to applicable anti-kickback, fraud and abuse, anti-
bribery and other healthcare laws and regulations, which could expose us to criminal sanctions, civil penalties, contractual damages, reputational 
harm, and diminished profits and future earnings. 

Healthcare providers, physicians, and third-party payors play a primary role in the recommendation and prescription of any product candidates that we may 
develop for which we obtain marketing approval. Our future arrangements with third-party payors and customers may expose us to broadly applicable 
fraud and abuse and other healthcare laws and regulations that may constrain the business or financial arrangements and relationships through which we 
market, sell, and distribute our medicines for which we obtain marketing approval. Restrictions under applicable federal and state healthcare laws and 
regulations, including certain laws and regulations applicable only if we have marketed products, include the following: 

•

•

•

•

•

•

•

•

federal false claims, false statements and civil monetary penalties laws prohibiting, among other things, any person from knowingly 
presenting, or causing to be presented, a false claim for payment of government funds or knowingly making, or causing to be made, a false 
statement to get a false claim paid; 

federal healthcare program anti-kickback law, which prohibits, among other things, persons from offering, soliciting, receiving or providing 
remuneration, directly or indirectly, to induce either the referral of an individual for, or the purchasing or ordering of a good or service, for 
which payment may be made under federal healthcare programs such as Medicare and Medicaid; 

the federal Health Insurance Portability and Accountability Act of 1996, or HIPAA, which, in addition to privacy protections applicable to 
healthcare providers and other entities, prohibits executing a scheme to defraud any healthcare benefit program or making false statements 
relating to healthcare matters; 

the federal Food, Drug, and Cosmetic Act, or the FDCA, which among other things, strictly regulates drug marketing, prohibits 
manufacturers from marketing such products for off-label use and regulates the distribution of samples; 

federal laws that require pharmaceutical manufacturers to report certain calculated product prices to the government or provide certain 
discounts or rebates to government authorities or private entities, often as a condition of reimbursement under government healthcare 
programs; 

the so-called “federal sunshine” law under the Healthcare Reform Act, which requires pharmaceutical and medical device companies to 
monitor and report certain financial interactions with certain healthcare providers to the Center for Medicare & Medicaid Services within the 
U.S. Department of Health and Human Services for re-disclosure to the public, as well as ownership and investment interests held by 
physicians and their immediate family members; 

state laws also requiring pharmaceutical companies to comply with specific compliance standards, restrict financial interactions between 
pharmaceutical companies and healthcare providers or require pharmaceutical companies to report information related to payments to health 
care providers or marketing expenditures; and

analogous state and foreign laws and regulations, such as state anti-kickback, anti-bribery and false claims laws, which may apply to 
healthcare items or services that are reimbursed by non-governmental third-party payors, including private insurers. 

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Efforts to ensure that our business arrangements with third parties will comply with applicable healthcare laws and regulations will involve substantial 
costs. Given the breadth of the laws and regulations, limited guidance for certain laws and regulations and evolving government interpretations of the laws 
and regulations, governmental authorities may possibly conclude that our business practices may not comply with healthcare laws and regulations. If our 
operations are found to be in violation of any of the laws described above or any other government regulations that apply to us, we may be subject to 
penalties, including civil and criminal penalties, damages, fines, exclusion from participation in government health care programs, such as Medicare and 
Medicaid, imprisonment, and the curtailment or restructuring of our operations, any of which could adversely affect our business, financial condition, 
results of operations, and prospects. 

The provision of benefits or advantages to physicians to induce or encourage the prescription, recommendation, endorsement, purchase, supply, order, or 
use of medicinal products is prohibited in the EU. The provision of benefits or advantages to physicians is also governed by the national anti-bribery laws 
of EU Member States, such as the U.K. Bribery Act 2010. Infringement of these laws could result in substantial fines and imprisonment. 

Payments made to physicians in certain EU Member States must be publicly disclosed. Moreover, agreements with physicians often must be the subject of 
prior notification and approval by the physician’s employer, his or her competent professional organization, and/or the regulatory authorities of the 
individual EU Member States. These requirements are provided in the national laws, industry codes, or professional codes of conduct applicable in the EU 
Member States. Failure to comply with these requirements could result in reputational risk, public reprimands, administrative penalties, fines or 
imprisonment. 

Recently enacted and future legislation may increase the difficulty and cost for us and any future collaborators to obtain marketing approval of and 
commercialize our product candidates and affect the prices we, or they, may obtain.

In the United States and some foreign jurisdictions, there have been a number of legislative and regulatory changes and proposed changes regarding the 
healthcare system that could, among other things, prevent or delay marketing approval of any product candidates we may develop, restrict or regulate post-
approval activities and affect our ability, or the ability of any future collaborators, to profitably sell any products for which we, or they, obtain marketing 
approval. We expect that current laws, as well as other healthcare reform measures that may be adopted in the future, may result in more rigorous coverage 
criteria and in additional downward pressure on the price that we, or any future collaborators, may receive for any approved products.

In March 2010, the United States Congress enacted the 2010 Patient Protection and Affordable Care Act, or the PPACA. In addition, other legislative 
changes have been proposed and adopted since the PPACA was enacted. In August 2011, the Budget Control Act of 2011, among other things, created 
measures for spending reductions by Congress. A Joint Select Committee on Deficit Reduction, tasked with recommending a targeted deficit reduction of 
at least $1.2 trillion for the years 2013 through 2021, was unable to reach required goals, thereby triggering the legislation’s automatic reduction to several 
government programs. These changes included aggregate reductions to Medicare payments to providers of up to 2% per fiscal year, which went into effect 
in April 2013 and will remain in effect through 2031 with the exception of a temporary suspension and reduction from May 1, 2020 through June 30, 2022, 
with a 2% reduction thereafter. The American Taxpayer Relief Act of 2012, among other things, reduced Medicare payments to several providers and 
increased the statute of limitations period for the government to recover overpayments to providers from three to five years. These new laws may result in 
additional reductions in Medicare and other healthcare funding and otherwise affect the prices we may obtain for any of our product candidates for which 
we may obtain regulatory approval or the frequency with which any such product candidate is prescribed or used.

Since enactment of the PPACA, there have been, and continue to be, numerous legal challenges and Congressional actions to repeal and replace provisions 
of the law. For example, with enactment of the Tax Act, Congress repealed the “individual mandate.” The repeal of this provision, which requires most 
Americans to carry a minimal level of health insurance, became effective in 2019. Further, on December 14, 2018, a U.S. District Court judge in the 
Northern District of Texas ruled that the individual mandate portion of the PPACA is an essential and inseverable feature of the PPACA, and therefore 
because the mandate was repealed as part of the Tax Act, the remaining provisions of the PPACA are invalid as well. The U.S. Supreme Court heard this 
case on November 10, 2020 and, on June 17, 2021, dismissed this action after finding that the plaintiffs do not have standing to challenge the 
constitutionality of the PPACA. Litigation and legislation over the PPACA are likely to continue, with unpredictable and uncertain results.

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In January 2021, a new executive order directed federal agencies to reconsider rules and other policies that limit Americans’ access to healthcare and 
consider actions that will protect and strengthen that access. Under this order, federal agencies are directed to re-examine: policies that undermine 
protections for people with pre-existing conditions, including complications related to the COVID‑19 pandemic; demonstrations and waivers under 
Medicaid and the PPACA that may reduce coverage or undermine the programs, including work requirements; policies that undermine the Health Insurance 
Marketplace or other markets for health insurance; policies that make it more difficult to enroll in Medicaid and under the PPACA; and policies that reduce 
affordability of coverage or financial assistance, including for dependents. This executive order also directs the U.S. Department of Health and Human 
Services to create a special enrollment period for the Health Insurance Marketplace in response to the COVID‑19 pandemic.

We expect that these healthcare reforms, as well as other healthcare reform measures that may be adopted in the future, may result in additional reductions 
in Medicare and other healthcare funding, more rigorous coverage criteria, new payment methodologies and additional downward pressure on the price that 
we receive for any approved product and/or the level of reimbursement physicians receive for administering any approved product we might bring to 
market. Reductions in reimbursement levels may negatively impact the prices we receive or the frequency with which our products are prescribed or 
administered. Any reduction in reimbursement from Medicare or other government programs may result in a similar reduction in payments from private 
payors. Accordingly, such reforms, if enacted, could have an adverse effect on anticipated revenue from product candidates that we may successfully 
develop and for which we may obtain marketing approval and may affect our overall financial condition and ability to develop or commercialize product 
candidates. 

The prices of prescription pharmaceuticals in the United States and foreign jurisdictions are subject to considerable legislative and executive actions 
and could impact the prices we obtain for our products, if and when licensed.

The prices of prescription pharmaceuticals have been the subject of considerable discussion in the United States. There have been several recent U.S. 
congressional inquiries, as well as proposed and enacted state and federal legislation designed to, among other things, bring more transparency to 
pharmaceutical pricing, review the relationship between pricing and manufacturer patient programs, and reduce the costs of pharmaceuticals under 
Medicare and Medicaid. In 2020, President Trump issued several executive orders intended to lower the costs of prescription products and certain 
provisions in these orders have been incorporated into regulations. These regulations include an interim final rule implementing a most favored nation 
model for prices that would tie Medicare Part B payments for certain physician-administered pharmaceuticals to the lowest price paid in other 
economically advanced countries, effective January 1, 2021. That rule, however, has been subject to a nationwide preliminary injunction and, on December 
29, 2021, CMS issued a final rule to rescind it. With issuance of this rule, CMS stated that it will explore all options to incorporate value into payments for 
Medicare Part B pharmaceuticals and improve beneficiaries' access to evidence-based care.

In addition, in October 2020, HHS and the FDA published a final rule allowing states and other entities to develop a SIP to import certain prescription 
drugs from Canada into the United States. The final rule is currently the subject of ongoing litigation, but at least six states (Vermont, Colorado, Florida, 
Maine, New Mexico, and New Hampshire) have passed laws allowing for the importation of drugs from Canada with the intent of developing SIPs for 
review and approval by the FDA. Further, on November 20, 2020, HHS finalized a regulation removing safe harbor protection for price reductions from 
pharmaceutical manufacturers to plan sponsors under Part D, either directly or through pharmacy benefit managers, unless the price reduction is required 
by law. The implementation of the rule has been delayed by the Infrastructure Investment and Jobs Act to January 1, 2026 in response to ongoing litigation. 
The rule also creates a new safe harbor for price reductions reflected at the point-of-sale, as well as a new safe harbor for certain fixed fee arrangements 
between pharmacy benefit managers and manufacturers, the implementation of which have also been delayed until January 1, 2026 by the Infrastructure 
Investment and Jobs Act.

In September 2021, acting pursuant to an executive order signed by President Biden, HHS released its plan to reduce pharmaceutical prices. The key 
features of that plan are to: (a) make pharmaceutical prices more affordable and equitable for all consumers and throughout the health care system by 
supporting pharmaceutical price negotiations with manufacturers; (b) improve and promote competition throughout the prescription pharmaceutical 
industry by supporting market changes that strengthen supply chains, promote biosimilars and generic drugs, and increase transparency; and (c) foster 
scientific innovation to promote better healthcare and improve health by supporting public and private research and making sure that market incentives 
promote discovery of valuable and accessible new treatments.

More recently, on August 16, 2022, the IRA was signed into law by President Biden. The new legislation has implications for Medicare Part D, which is a 
program available to individuals who are entitled to Medicare Part A or enrolled in Medicare Part B to give them the option of paying a monthly premium 
for outpatient prescription drug coverage. Among other things, the IRA requires manufacturers of certain drugs to engage in price negotiations with 
Medicare (beginning in 2026), with prices that can be negotiated subject to a cap; imposes rebates under Medicare Part B and Medicare Part D to penalize 
price increases that outpace inflation (first due in 2023); and replaces the Part D coverage gap discount program with a new discounting program 
(beginning in 2025). The IRA permits the Secretary of the Department of Health and Human Services (HHS) to implement many of these provisions 
through guidance, as opposed to regulation, for the initial years.  

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Specifically, with respect to price negotiations, Congress authorized Medicare to negotiate lower prices for certain costly single-source drug and biologic 
products that do not have competing generics or biosimilars and are reimbursed under Medicare Part B and Part D. CMS may negotiate prices for ten high-
cost drugs paid for by Medicare Part D starting in 2026, followed by 15 Part D drugs in 2027, 15 Part B or Part D drugs in 2028 and 20 Part B or Part D 
drugs in 2029 and beyond. This provision applies to drug products that have been approved for at least 9 years and biologics that have been licensed for 13 
years, but does not apply to drugs and biologics that have been approved for a single rare disease or condition. Nonetheless, since CMS may establish a 
maximum price for these products in price negotiations, we would be fully at risk of government action if our products are the subject of Medicare price 
negotiations. Moreover, given the risk that could be the case, these provisions of the IRA may also further heighten the risk that we would not be able to 
achieve the expected return on our drug products or full value of our patents protecting our products if prices are set after such products have been on the 
market for nine years.   

Further, the legislation subjects drug manufacturers to civil monetary penalties and a potential excise tax for failing to comply with the legislation by 
offering a price that is not equal to or less than the negotiated “maximum fair price” under the law or for taking price increases that exceed inflation. The 
legislation also requires manufacturers to pay rebates for drugs in Medicare Part D whose price increases exceed inflation. The new law also caps Medicare 
out-of-pocket drug costs at an estimated $4,000 a year in 2024 and, thereafter beginning in 2025, at 2,000 a year. In addition, the IRA potentially raises 
legal risks with respect to individuals participating in a Medicare Part D prescription drug plan who may experience a gap in coverage if they required 
coverage above their initial annual coverage limit before they reached the higher threshold, or “catastrophic period” of the plan. Individuals requiring 
services exceeding the initial annual coverage limit and below the catastrophic period, must pay 100% of the cost of their prescriptions until they reach the 
catastrophic period. Among other things, the IRA contains many provisions aimed at reducing this financial burden on individuals by reducing the co-
insurance and co-payment costs, expanding eligibility for lower income subsidy plans, and price caps on annual out-of-pocket expenses, each of which 
could have potential pricing and reporting implications.

Accordingly, while it is currently unclear how the IRA will be effectuated, we cannot predict with certainty what impact any federal or state health reforms 
will have on us, but such changes could impose new or more stringent regulatory requirements on our activities or result in reduced reimbursement for our 
products, any of which could adversely affect our business, results of operations and financial condition.

At the state level, individual states are increasingly aggressive in passing legislation and implementing regulations designed to control pharmaceutical and 
biological product pricing, including price or patient reimbursement constraints, discounts, restrictions on certain product access and marketing cost 
disclosure and transparency measures, and, in some cases, designed to encourage importation from other countries and bulk purchasing. In addition, 
regional healthcare organizations and individual hospitals are increasingly using bidding procedures to determine what pharmaceutical products and which 
suppliers will be included in their prescription drug and other healthcare programs. These measures could reduce the ultimate demand for our products, 
once approved, or put pressure on our product pricing. We expect that additional state and federal healthcare reform measures will be adopted in the future, 
any of which could limit the amounts that federal and state governments will pay for healthcare products and services, which could result in reduced 
demand for our product candidates or additional pricing pressures.

In the EU, similar political, economic and regulatory developments may affect our ability to profitably commercialize our product candidates, if approved. 
In markets outside of the United States and the EU, reimbursement and healthcare payment systems vary significantly by country, and many countries have 
instituted price ceilings on specific products and therapies. In some countries, particularly the countries of the EU, the pricing of prescription 
pharmaceuticals is subject to governmental control. In these countries, pricing negotiations with governmental authorities can take considerable time after 
the receipt of marketing approval for a product. To obtain reimbursement or pricing approval in some countries, we may be required to conduct a clinical 
trial that compares the cost-effectiveness of our product candidate to other available therapies. If reimbursement of our products is unavailable or limited in 
scope or amount, or if pricing is set at unsatisfactory levels, our business could be harmed, possibly materially.

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Our employees, principal investigators, consultants, and commercial partners may engage in misconduct or other improper activities, including non-
compliance with regulatory standards and requirements and insider trading. 

We are exposed to the risk of fraud or other misconduct by our employees, consultants, and commercial partners, and, if we commence clinical trials, our 
principal investigators. Misconduct by these parties could include intentional failures to comply with FDA regulations or the regulations applicable in the 
EU and other jurisdictions, provide accurate information to the FDA, the EMA, and other regulatory authorities, comply with healthcare fraud and abuse 
laws and regulations in the United States and abroad, report financial information or data accurately, or disclose unauthorized activities to us. In particular, 
sales, marketing, and business arrangements in the healthcare industry are subject to extensive laws and regulations intended to prevent fraud, misconduct, 
kickbacks, self-dealing and other abusive practices. These laws and regulations restrict or prohibit a wide range of pricing, discounting, marketing and 
promotion, sales commission, customer incentive programs, and other business arrangements. Such misconduct also could involve the improper use of 
information obtained in the course of clinical trials or interactions with the FDA, the EMA or other regulatory authorities, which could result in regulatory 
sanctions and cause serious harm to our reputation. We have adopted a code of conduct applicable to all of our employees, but it is not always possible to 
identify and deter employee misconduct, and the precautions we take to detect and prevent this activity may not be effective in controlling unknown or 
unmanaged risks or losses or in protecting us from government investigations or other actions or lawsuits stemming from a failure to comply with these 
laws or regulations. If any such actions are instituted against us, and we are not successful in defending ourselves or asserting our rights, those actions 
could have a significant impact on our business, financial condition, results of operations, and prospects, including the imposition of significant fines or 
other sanctions. 

Laws and regulations governing any international operations we may have in the future may preclude us from developing, manufacturing and selling 
certain product candidates outside of the United States and require us to develop and implement costly compliance programs. 

We are subject to numerous laws and regulations in each jurisdiction outside the United States in which we operate. The creation, implementation and 
maintenance of international business practices compliance programs is costly and such programs are difficult to enforce, particularly where reliance on 
third parties is required. 

The Foreign Corrupt Practices Act, or FCPA, prohibits any U.S. individual or business from paying, offering, authorizing payment or offering of anything 
of value, directly or indirectly, to any foreign official, political party or candidate for the purpose of influencing any act or decision of the foreign entity in 
order to assist the individual or business in obtaining or retaining business. The FCPA also obligates companies whose securities are listed in the United 
States to comply with certain accounting provisions requiring us to maintain books and records that accurately and fairly reflect all transactions of the 
corporation, including international subsidiaries, and to devise and maintain an adequate system of internal accounting controls for international operations. 
The anti-bribery provisions of the FCPA are enforced primarily by the Department of Justice. The SEC is involved with enforcement of the books and 
records provisions of the FCPA. 

Similarly, the U.K. Bribery Act 2010 has extra-territorial effect for companies and individuals having a connection with the U.K. The U.K. Bribery Act 
prohibits inducements both to public officials and private individuals and organizations. Compliance with the FCPA and the U.K. Bribery Act is expensive 
and difficult, particularly in countries in which corruption is a recognized problem. In addition, the FCPA presents particular challenges in the 
pharmaceutical industry, because, in many countries, hospitals are operated by the government, and doctors and other hospital employees are considered 
foreign officials. Certain payments to hospitals in connection with clinical trials and other work have been deemed to be improper payments to government 
officials and have led to FCPA enforcement actions. 

Various laws, regulations and executive orders also restrict the use and dissemination outside of the United States, or the sharing with certain non-U.S. 
nationals, of information classified for national security purposes, as well as certain products and technical data relating to those products. Our expansion 
outside of the United States has required, and will continue to require, us to dedicate additional resources to comply with these laws, and these laws may 
preclude us from developing, manufacturing, or selling certain drugs and drug candidates outside of the United States, which could limit our growth 
potential and increase our development costs. The failure to comply with laws governing international business practices may result in substantial penalties, 
including suspension or debarment from government contracting. Violation of the FCPA can result in significant civil and criminal penalties. Indictment 
alone under the FCPA can lead to suspension of the right to do business with the U.S. government until the pending claims are resolved. Conviction of a 
violation of the FCPA can result in long-term disqualification as a government contractor. The termination of a government contract or relationship as a 
result of our failure to satisfy any of our obligations under laws governing international business practices would have a negative impact on our operations 
and harm our reputation and ability to procure government contracts. The SEC also may suspend or bar issuers from trading securities on U.S. exchanges 
for violations of the FCPA’s accounting provisions. 

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We are subject to stringent privacy laws, information security laws, regulations, policies and contractual obligations related to data privacy and security 
and changes in such laws, regulations, policies and contractual obligations could adversely affect our business. 

We are subject to a wide variety of data privacy and protection laws and regulations that apply to the collection, transmission, storage and use of 
personally-identifying information, which among other things, impose certain requirements relating to the privacy, security and transmission of personal 
information, including comprehensive regulatory systems in the U.S., EU and U.K. and other countries around the world. The legislative and regulatory 
landscape for privacy and data protection continues to evolve in jurisdictions worldwide, and there has been an increasing focus on privacy and data 
protection issues with the potential to affect our business. Failure to comply with any of these laws and regulations could result in enforcement action 
against us, including fines, imprisonment of company officials and public censure, claims for damages by affected individuals, damage to our reputation 
and loss of goodwill, any of which could have a material adverse effect on our business, financial condition, results of operations or prospects. In addition, 
these laws and regulations may impose additional costs on our business activities, including costs of contracting with vendors and other business partners 
and the costs of identifying appropriate patients for clinical trials or subsequent treatment.

If we are unable to properly protect the privacy and security of individually identifiable health information, we could be found to have breached our 
contracts. Further, if we fail to comply with applicable privacy laws, we could face civil and criminal penalties or other enforcement risks related to our 
business. In addition to these potential penalties, such enforcement activity can consume significant internal resources. In addition, state attorneys general 
are authorized to bring civil actions seeking either injunctions or damages in response to violations that threaten the privacy of state residents. We cannot be 
sure how these regulations will be interpreted, enforced or applied to our operations. In addition to the risks associated with enforcement activities and 
potential contractual liabilities, our ongoing efforts to comply with evolving laws and regulations at the federal and state level may be costly and require 
ongoing modifications to our policies, procedures and systems. 

While we continue to address the implications of the recent changes to data privacy regulations, data privacy remains an evolving landscape at both the 
domestic and international level, with new regulations coming into effect and continued legal challenges, and our efforts to comply with the evolving data 
protection rules may be unsuccessful. It is possible that these laws may be interpreted and applied in a manner that is inconsistent with our practices. We 
must devote significant resources to understanding and complying with this changing landscape. Failure to comply with laws regarding data protection 
would expose us to risk of enforcement actions taken by data protection authorities in the EEA and elsewhere and carries with it the potential for significant 
penalties if we are found to be non-compliant. Similarly, failure to comply with federal and state laws in the United States regarding privacy and security of 
personal information could expose us to penalties under such laws. Any such failure to comply with data protection and privacy laws could result in 
government-imposed fines or orders requiring that we change our practices, claims for damages or other liabilities, regulatory investigations and 
enforcement action, litigation and significant costs for remediation, any of which could adversely affect our business. Even if we are not determined to have 
violated these laws, government investigations into these issues typically require the expenditure of significant resources and generate negative publicity, 
which could harm our business, financial condition, results of operations or prospects. 

Social media platforms present new risks and challenges to our business.

As social media continues to expand, it also presents us with new risks and challenges. Social media is increasingly being used to communicate information 
about us, our programs and the diseases our product candidates are being developed to treat. Social media practices in the pharmaceutical and 
biotechnology industries are evolving, which creates uncertainty and risk of noncompliance with regulations applicable to our business. For example, 
patients may use social media platforms to comment on the effectiveness of, or adverse experiences with, a product or a product candidate, which could 
result in reporting obligations or other consequences. Further, the accidental or intentional disclosure of non-public information by our workforce or others 
through media channels could lead to information loss. In addition, there is a risk of inappropriate disclosure of sensitive information or negative or 
inaccurate posts or comments about us, our products, or our product candidates on any social media platform. If any of these events were to occur or we 
otherwise fail to comply with applicable regulations, we could incur liability, face restrictive regulatory actions or incur other harm to our business 
including quick and irreversible damage to our reputation, brand image and goodwill.

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Risks related to employee matters, managing growth and information technology 

Our future growth may depend on our ability to identify and acquire businesses or technologies, and if we do not successfully do so, or otherwise fail to 
integrate any new businesses or technologies into our operations, we may have limited growth opportunities and it could result in significant 
impairment charges or other adverse financial consequences.

We are continuing to seek to acquire businesses or technologies that we believe are a strategic fit with our business strategy. Future acquisitions, however, 
may entail numerous operational and financial risks, including:

•

•

•

•

•

•

a reduction of our current financial resources;

incurrence of substantial debt or dilutive issuances of securities to pay for acquisitions and in connection with future milestone payment 
obligations under such acquisition agreements;

difficulty or inability to secure financing to fund development activities for those acquired or in-licensed technologies;

higher than expected acquisition and integration costs;

disruption of our business, customer base and diversion of our management’s time and attention to develop acquired technologies; and

exposure to unknown liabilities.

We may not have sufficient resources to identify and execute the acquisition businesses and technologies and integrate them into our current infrastructure. 
In particular, we may compete with larger biotechnology companies and other competitors in our efforts to establish new collaborations and in-licensing 
opportunities. These competitors likely will have access to greater financial resources than we do and may have greater expertise in identifying and 
evaluating new opportunities. Furthermore, there may be overlap between our product candidates and the companies which we acquire that may create 
conflicts in relationships or other commitments detrimental to the integrated businesses. Additionally, the time between our expenditures to acquire or in-
license new technologies or businesses and the subsequent generation of revenues from those acquired technologies or businesses (or the timing of revenue 
recognition related to licensing agreements and/or strategic collaborations) could cause fluctuations in our financial performance from period to period. 
Finally, if we devote resources to potential acquisition opportunities that are never completed, or if we fail to realize the anticipated benefits of those 
efforts, we could incur significant impairment charges or other adverse financial consequences.

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Our future success depends on our ability to retain our Chief Executive Officer, President, other key executives and to attract, retain, and motivate 
qualified personnel.  

We are highly dependent on John Evans, our Chief Executive Officer, and Dr. Giuseppe Ciaramella, our President, as well as the other principal members 
of our management and scientific teams. Mr. Evans, Dr. Ciaramella and such other principal members are employed “at will,” meaning we or they may 
terminate the employment at any time. We do not maintain “key person” insurance for any of our executives or other employees. The loss of the services of 
any of these persons could impede the achievement of our research, development, and commercialization objectives.

Recruiting and retaining qualified scientific, clinical, manufacturing, and sales and marketing personnel will also be critical to our success. We may not be 
able to attract and retain these personnel on acceptable terms given the competition among numerous pharmaceutical and biotechnology companies for 
similar personnel. We also experience competition for the hiring of scientific and clinical personnel from universities and research institutions. In addition, 
we rely on consultants and advisors, including scientific and clinical advisors, to assist us in formulating our research and development and 
commercialization strategy. Our consultants and advisors, including our scientific co-founders, may be employed by employers other than us and may have 
commitments under consulting or advisory contracts with other entities that may limit their availability to us. The inability to recruit, or loss of services of 
certain executives, key employees, consultants, or advisors, may impede the progress of our research, development, and commercialization objectives and 
have a material adverse effect on our business, financial condition, results of operations, and prospects. 

We expect to expand our development, regulatory, and future sales and marketing capabilities, and as a result, we may encounter difficulties in 
managing our growth, which could disrupt our operations. 

In connection with the growth and advancement of our pipeline, we expect to increase the number of our employees and the scope of our operations, 
particularly in the areas of drug development, regulatory affairs, and sales and marketing. To manage our anticipated future growth, we must continue to 
implement and improve our managerial, operational, and financial systems, expand our facilities, and continue to recruit and train additional qualified 
personnel. Due to our limited financial resources and the limited experience of our management team in managing a company with such anticipated 
growth, we may not be able to effectively manage the expected expansion of our operations or recruit and train additional qualified personnel. Moreover, 
the expected physical expansion of our operations may lead to significant costs and may divert our management and business development resources. Any 
inability to manage growth could delay the execution of our business plans or disrupt our operations. 

As a growing biotechnology company, we are actively pursuing new platforms and product candidates in many therapeutic areas and across a wide range of 
diseases. Successfully developing product candidates for and fully understanding the regulatory and manufacturing pathways to all of these therapeutic 
areas and disease states requires a significant depth of talent, resources and corporate processes in order to allow simultaneous execution across multiple 
areas. Due to our limited resources, we may not be able to effectively manage this simultaneous execution and the expansion of our operations or recruit 
and train additional qualified personnel. This may result in weaknesses in our infrastructure, give rise to operational mistakes, legal or regulatory 
compliance failures, loss of business opportunities, loss of employees and reduced productivity among remaining employees. The physical expansion of 
our operations may lead to significant costs and may divert financial resources from other projects, such as the development of our product candidates. If 
our management is unable to effectively manage our expected development and expansion, our expenses may increase more than expected, our ability to 
generate or increase our revenue could be reduced and we may not be able to implement our business strategy. Our future financial performance and our 
ability to compete effectively and commercialize our product candidates, if approved, will depend in part on our ability to effectively manage the future 
development and expansion of our company. 

Risks related to our common stock 

The market price of our common stock may be volatile and fluctuate substantially, which could result in substantially losses for purchasers of our 
common stock and subject us to securities class action litigation. 

Our stock price has been, and in the future, may be, subject to substantial volatility. The stock market in general, and the market for biopharmaceutical 
companies in particular, have experienced extreme volatility that has often been unrelated to the operating performance of particular companies. As a result 
of this volatility, you may not be able to sell your common stock at or above your initial purchase price. The market price for our common stock may be 
influenced by many factors, including:

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the success of existing or new competitive product candidates or technologies; 

the timing and results of preclinical studies and clinical trials for any product candidates that we develop; 

failure or discontinuation of any of our product development and research programs; 

results of preclinical studies, clinical trials, or regulatory approvals of product candidates of our competitors, or announcements about new 
research programs or product candidates of our competitors; 

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developments or changing views regarding the use of genetic medicines, including those that involve gene editing; 

commencement or termination of collaborations for our product development and research programs; 

regulatory or legal developments in the United States and other countries; 

developments or disputes concerning patent applications, issued patents, or other proprietary rights; 

the recruitment or departure of key personnel; 

the level of expenses related to any of our research programs, clinical development programs, or product candidates that we may develop; 

the results of our efforts to develop additional product candidates or products; 

actual or anticipated changes in estimates as to financial results, development timelines, or recommendations by securities analysts; 

announcement or expectation of additional financing efforts; 

sales of our common stock by us, our insiders or other stockholders;

expiration of any future market stand-off or lock-up agreements; 

variations in our financial results or those of companies that are perceived to be similar to us; 

changes in estimates or recommendations by securities analysts, if any, that cover our stock; 

changes in the structure of healthcare payment systems; 

market conditions in the pharmaceutical and biotechnology sectors; 

the effects of pandemics and public health emergencies, including the ongoing COVID-19 pandemic;

general economic, industry, and market conditions; and 

the other factors described in this “Risk Factors” section. 

Following periods of such volatility in the market price of a company’s securities, securities class action litigation has often been brought against that 
company. Because of the potential volatility of our stock price, we may become the target of securities litigation in the future. Securities litigation could 
result in substantial costs and divert management’s attention and resources from our business. 

If we fail to establish and maintain proper and effective internal control over financial reporting, our operating results and our ability to operate our 
business could be harmed. 

Maintaining adequate internal financial and accounting controls and procedures to ensure that we can produce accurate financial statements on a timely 
basis is a costly and time-consuming effort that needs to be re-evaluated frequently. Our internal control over financial reporting is a process designed to 
provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements in accordance with generally 
accepted accounting principles. To comply with the requirements of being a public company, we have undertaken certain actions, such as documenting, 
reviewing and improving our internal controls and procedures for compliance with Section 404 of the Sarbanes-Oxley Act of 2002, or SOX, which requires 
annual management assessment of the effectiveness of our internal control over financial reporting and an annual report on and attestation to such 
assessment by our registered public accounting firm. Notwithstanding such actions, we may not be effective in maintaining the adequacy of our internal 
controls, and any failure to maintain that adequacy, or consequent inability to produce accurate financial statements on a timely basis, or any disagreement 
with our auditors on whether we have maintained such adequacy, could increase our operating costs and harm our business. In addition, investors’ 
perceptions that our internal controls are inadequate or that we are unable to produce accurate financial statements on a timely basis may harm our common 
stock price and make it more difficult for us to effectively market and sell our service to new and existing customers.

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We have incurred and expect to continue to incur increased costs as a result of operating as a public company, and our management is required to 
devote substantial time to new compliance initiatives and corporate governance practices. 

As a public company, we have incurred and expect to continue to incur significant legal, accounting, and other expenses. The Sarbanes-Oxley Act of 2002, 
the Dodd-Frank Wall Street Reform and Consumer Protection Act, the listing requirements of The Nasdaq Stock Market, and other applicable securities 
rules and regulations impose various requirements on public companies, including establishment and maintenance of effective disclosure and financial 
controls and corporate governance practices. Our management and other personnel devote a substantial amount of time towards maintaining compliance 
with these requirements. These requirements have increased our legal and financial compliance costs and make some activities more time-consuming and 
costly. For example, as a public company it is more difficult and more expensive for us to maintain director and officer liability insurance, which could 
make it more difficult for us to attract and retain qualified members of our board of directors. These rules and regulations are often subject to varying 
interpretations, in many cases due to their lack of specificity, and, as a result, their application in practice may evolve over time as new guidance is 
provided by regulatory and governing bodies. This could result in continuing uncertainty regarding compliance matters and higher costs necessitated by 
ongoing revisions to disclosure and governance practices. 

We do not expect to pay any dividends for the foreseeable future. Investors may never obtain a return on their investment unless they sell our common 
stock for a price higher than which they paid for it. 

You should not rely on an investment in our common stock to provide dividend income. We do not anticipate that we will pay any dividends to holders of 
our common stock in the foreseeable future. Instead, we plan to retain any earnings to maintain and expand our existing operations. In addition, any future 
credit facility may contain terms prohibiting or limiting the amount of dividends that may be declared or paid on our common stock. Accordingly, investors 
must rely on sales of their common stock after price appreciation, which may never occur, as the only way to realize any return on their investment.

Provisions in our amended and restated certificate of incorporation, our amended and restated by-laws and Delaware law may have anti-takeover 
effects that could discourage an acquisition of us by others, even if an acquisition would be beneficial to our stockholders, and may prevent attempts by 
our stockholders to replace or remove our current management. 

Our amended and restated certificate of incorporation, amended and restated by-laws and Delaware law contain provisions that may have the effect of 
discouraging, delaying or preventing a change in control of us or changes in our management that stockholders may consider favorable, including 
transactions in which you might otherwise receive a premium for your shares. Our amended and restated certificate of incorporation and by-laws, include 
provisions that: 

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authorize “blank check” preferred stock, which could be issued by our board of directors without stockholder approval and may contain 
voting, liquidation, dividend and other rights superior to our common stock; 

create a classified board of directors whose members serve staggered three-year terms; 

specify that special meetings of our stockholders can be called only by our board of directors; 

prohibit stockholder action by written consent; 

establish an advance notice procedure for stockholder approvals to be brought before an annual meeting of our stockholders, including 
proposed nominations of persons for election to our board of directors; 

provide that vacancies on our board of directors may be filled only by a majority of directors then in office, even though less than a quorum; 

provide that our directors may be removed only for cause; 

specify that no stockholder is permitted to cumulate votes at any election of directors; 

expressly authorized our board of directors to make, alter, amend or repeal our amended and restated by-laws; and 

require supermajority votes of the holders of our common stock to amend specified provisions of our amended and restated certificate of 
incorporation and amended and restated by-laws. 

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These provisions, alone or together, could delay or prevent hostile takeovers and changes in control or changes in our management. These provisions could 
also limit the price that investors might be willing to pay for shares of our common stock, thereby depressing the market price of our common stock. 

In addition, because we are incorporated in the State of Delaware, we are governed by the provisions of Section 203 of the General Corporation Law of the 
State of Delaware, or the DGCL, which prohibits a person who owns in excess of 15% of our outstanding voting stock from merging or combining with us 
for a period of three years after the date of the transaction in which the person acquired in excess of 15% of our outstanding voting stock, unless the merger 
or combination is approved in a prescribed manner. 

Any provision of our amended and restated certificate of incorporation, amended and restated by-laws or Delaware law that has the effect of delaying or 
deterring a change in control could limit the opportunity for our stockholders to receive a premium for their shares of our common stock, and could also 
affect the price that some investors are willing to pay for our common stock. 

Our amended and restated certificate of incorporation and amended and restated by-laws designate the state or federal courts within the State of 
Delaware as the exclusive forum for certain types of actions and proceedings that may be initiated by our stockholders, which could limit our 
stockholders’ ability to obtain a favorable judicial forum for disputes with us or our directors, officers or employees. 

Our amended and restated certificate of incorporation provides that, subject to limited exceptions, the state or federal courts within the State of Delaware 
will be exclusive forums for (1) any derivative action or proceeding brought on our behalf, (2) any action asserting a claim of breach of a fiduciary duty 
owed by any of our directors, officers or other employees to us or our stockholders, (3) any action asserting a claim against us arising pursuant to any 
provision of the DGCL, our amended and restated certificate of incorporation or our amended and restated by-laws, (4) any action to interpret, apply, 
enforce or determine the validity of our amended and restated certificate of incorporation or our amended and restated by-laws or (5) any other action 
asserting a claim against us that is governed by the internal affairs doctrine. Furthermore, our amended and restated by-laws also provide that unless we 
consent in writing to the selection of an alternative forum, the federal district courts of the United States shall be the exclusive forum for the resolution of 
any complaint asserting a cause of action arising under the Securities Act. Any person or entity purchasing or otherwise acquiring any interest in shares of 
our capital stock shall be deemed to have notice of and to have consented to the provisions of our amended and restated certificate of incorporation and 
amended and restated by-laws described above. These choice of forum provisions may limit a stockholder’s ability to bring a claim in a judicial forum that 
it finds favorable for disputes with us or our directors, officers or other employees, which may discourage such lawsuits against us and our directors, 
officers and employees. Alternatively, if a court were to find these provisions of our amended and restated certificate of incorporation or amended and 
restated by-laws inapplicable to, or unenforceable in respect of, one or more of the specified types of actions or proceedings, we may incur additional costs 
associated with resolving such matters in other jurisdictions, which could adversely affect our business and financial condition. For example, the Court of 
Chancery of the State of Delaware recently determined that a provision stating that federal district courts of the United States are the exclusive forum for 
resolving any complaint asserting a cause of action under the Securities Act is not enforceable. However, this decision may be reviewed and ultimately 
overturned by the Delaware Supreme Court. 

General risk factors 

Public health epidemics or outbreaks, including COVID-19, could adversely impact our business. 

Public health epidemics, such as COVID-19 or a similar pandemic, epidemic, or outbreak of an infectious disease, could materially and adversely affect our 
business and our financial results and could cause a disruption to the development of our product candidates. The extent to which COVID-19 may impact 
our business, results of operations and future growth prospects will depend on a variety of factors and future developments, which are highly uncertain and 
cannot be predicted with confidence, including the duration, scope and severity of the pandemic, the existence and extent of travel restrictions and social 
distancing in the U.S. and other countries, business closures or business disruptions, the effectiveness of actions taken in the U.S. and other countries to 
contain and treat COVID-19, periodic spikes in infection rates, new strains of the virus that causes outbreaks of COVID-19, and the broad availability of 
effective vaccines and therapeutics.

Some factors from the COVID-19 pandemic that could delay or otherwise adversely affect the completion of our preclinical and clinical activities and, 
depending on the duration of the outbreak, the initiation of any future clinical trials, as well as our business generally, include:

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business disruptions caused by potential workplace, laboratory and office closures and an increased reliance on employees working from 
home, disruptions to or delays in ongoing laboratory experiments and operations, staffing shortages, travel limitations, cyber security and 
data accessibility, or communication or mass transit disruptions, any of which could adversely impact our business operations or delay 
necessary interactions with local regulators, ethics committees, manufacturing sites, research sites and other important agencies and 
contractors;

limitations on the availability of preclinical and clinical trial sites, researchers and investigators, regulatory agency personnel, and materials;

limitations on our business operations by local, state, or the federal government that could impact our ability to conduct our preclinical and 
clinical activities;

limitations on travel that could hinder our timelines;

interruption in global shipping affecting the transport of key materials;

interruption of, or delays in receiving, key materials from our CMOs due to staffing shortages, production slowdowns or stoppages, increased 
demand from third parties for key materials related to COVID-19 research and vaccine development and disruptions in delivery systems; and

disruptions to our third-party suppliers, including through the effects of facility closures, reductions in operating hours, staggered shifts and 
other social distancing efforts, labor shortages, decreased productivity and unavailability of materials or components.

The COVID-19 pandemic may also have the effect of heightening many of the other risks described in this section titled “Item 1A. Risk Factors,” such as 
risks related to our need to raise additional funding, fluctuation of our quarterly financial results, and our ability to obtain and maintain regulatory 
approvals.

Comprehensive tax reform legislation could adversely affect our business and financial condition. 

On December 22, 2017, the Tax Act was signed into law. The Tax Act, as amended by the CARES Act, among other things, contains significant changes to 
corporate taxation, including (i) reduction of the corporate tax rate from a top marginal rate of 35% to a flat rate of 21%, (ii) limitation of the tax deduction 
for interest expense to 30% of adjusted earnings (except for certain small businesses), (iii) limitation of the deduction for NOLs to 80% of current year 
taxable income in respect of NOLs generated during or after 2018 and elimination of NOL carrybacks for NOLs generated on or after January 1, 2021, (iv) 
immediate deductions for certain new investments instead of deductions for depreciation expense over time, and (v) modification or repeal of many 
business deductions and credits. Any federal NOL incurred in 2018 and in future years may now be carried forward indefinitely pursuant to the Tax Act. 
Similar rules and limitations may apply for state income tax proposes. 

In addition to the Tax Act, as part of Congress’ response to the COVID-19 pandemic, economic relief legislation was enacted in 2020 and 2021 containing 
tax provisions, including the CARES Act. Regulatory guidance under the Tax Act and such additional legislation is and continues to be forthcoming, and 
such guidance could ultimately increase or lessen their impact on our business and financial condition. Also, as a result of the changes in the U.S. 
presidential administration and control of the U.S. Senate in 2021, additional tax legislation may be enacted; any such additional legislation could have an 
impact on us. In addition, it is uncertain if and to what extent various states will conform to the Tax Act and additional tax legislation.

Unstable market and economic conditions may have serious adverse consequences on our business, financial condition and stock price.

Global credit and financial markets have experienced extreme volatility and disruptions in the past several years, including severely diminished liquidity 
and credit availability, declines in consumer confidence, declines in economic growth, increases in unemployment rates and uncertainty about economic 
stability, including most recently in connection with the impacts of COVID-19, disruptions impacting global supply, the conflict between Russia and 
Ukraine and related sanctions against Russia, increasing inflation rates and interest rate changes. There can be no assurance that further deterioration in 
credit and financial markets and confidence in economic conditions will not occur. Our general business strategy may be adversely affected by any such 
economic downturn, volatile business environment or continued unpredictable and unstable market conditions. If the current equity and credit markets 
deteriorate, or do not improve, it may make any necessary debt or equity financing more difficult, more costly, and more dilutive. Furthermore, our stock 
price may decline due in part to the volatility of the stock market and the general economic downturn. 

Failure to secure any necessary financing in a timely manner and on favorable terms could have a material adverse effect on our growth strategy, financial 
performance and stock price and could require us to delay, scale back or discontinue the development and commercialization of one or more of our product 
candidates or delay our pursuit of potential in-licenses or acquisitions. In addition, there is a risk that one or more of our current service providers, 
manufacturers and other partners may not survive these difficult economic times, which could directly affect our ability to attain our operating goals.

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If securities analysts do not publish research or reports about our business or if they publish negative evaluations of our stock, the price of our stock 
could decline. 

The trading market for our common stock relies in part on the research and reports that industry or financial analysts publish about us or our business. If 
one or more of these analysts ceases coverage of our company or fails to publish reports on us regularly, we could lose visibility in the financial markets, 
which in turn could cause our stock price or trading volume to decline. Moreover, if any of the analysts who cover us issue an adverse or misleading 
opinion regarding us, our business model or our stock performance, or if our operating results fail to meet the expectations of the investor community, one 
or more of the analysts who cover our company may change their recommendations regarding our company, and our stock price could decline. 

Our internal computer systems, or those of our third-party vendors, collaborators or other contractors or consultants, may fail or suffer security 
breaches, which could result in a material disruption of our product development programs, compromise sensitive information related to our business 
or prevent us from accessing critical information, potentially exposing us to liability or otherwise adversely affecting our business. 

Our internal computer systems and those of our current and any future third-party vendors, collaborators and other contractors or consultants are vulnerable 
to damage or interruption from computer viruses, computer hackers, malicious code, employee theft or misuse, denial-of-service attacks, sophisticated 
nation-state and nation-state-supported actors, unauthorized access, natural disasters, terrorism, war and telecommunication and electrical failures. While 
we seek to protect our information technology systems from system failure, accident and security breach through our information security program and 
relevant contractual agreements with our business partners, if such an event were to occur and cause interruptions in our operations, it could result in a 
disruption of our development programs and our business operations, whether due to a loss of our trade secrets or other proprietary information or other 
disruptions, including the possible loss of personal data. For example, the loss of clinical trial data from future clinical trials could result in delays in our 
regulatory approval efforts and significantly increase our costs to recover or reproduce the data, as well as subject us to obligations and risks related to the 
potential loss of personal data. If we were to experience a significant cybersecurity breach of our information systems or data, the costs associated with the 
investigation, remediation and potential notification of the breach to counterparties and data subjects could be material, in addition to potential costs related 
to regulatory investigations in the United States or other countries. In addition, our remediation efforts may not be successful. If we do not allocate and 
effectively manage the resources necessary to build and sustain the proper technology and cybersecurity infrastructure, we could suffer significant business 
disruption, including transaction errors, supply chain or manufacturing interruptions, processing inefficiencies, data loss or the loss of or damage to 
intellectual property or other proprietary information. 

To the extent that any disruption or security breach were to result in a loss of, or damage to, our or our third-party vendors’, collaborators’ or other 
contractors’ or consultants’ data or applications, or inappropriate disclosure of confidential or proprietary information, we could incur liability including 
litigation exposure, penalties and fines, we could become the subject of regulatory action or investigation, our competitive position could be harmed and 
the further development and commercialization of our product candidates could be delayed. Any of the above could have a material adverse effect on our 
business, financial condition, results of operations or prospects. 

Item 1B. Unresolved Staff Comments.

None.

Item 2. Properties. 

We have leased approximately 38,203 square feet of office and laboratory space in Cambridge, Massachusetts under a lease that expires in 2028 and 
approximately 130,258 square feet of office and laboratory space in Cambridge, Massachusetts under a lease that expires in 2034. Additionally, we entered 
into a lease agreement with Alexandria Real Estate Equities, Inc. to build a 100,000 square foot manufacturing facility in Research Triangle Park, North 
Carolina intended to support a broad range of clinical programs. The lease will expire on the fifteenth anniversary of our occupancy of the facility, which 
occurred in December 2022, and we have an option to extend the lease term for two five-year terms. We believe that our facilities are sufficient to meet our 
current needs and that suitable additional space will be available as and when needed. 

Item 3. Legal Proceedings. 

We are not currently a party to any material legal proceedings. From time to time, we may be subject to various legal proceedings and claims that arise in 
the ordinary course of our business activities. Regardless of the outcome, litigation can have a material adverse effect on us because of defense and 
settlement costs, diversion of management resources, and other factors. 

Item 4. Mine Safety Disclosures. 

Not Applicable. 

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PART II 

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities. 

Market information

Our common stock has been publicly traded on the Nasdaq Global Select Market under the symbol “BEAM” since February 6, 2020. Prior to that time, 
there was no public market for our common stock.

Holders

As of February 22, 2023, there were approximately 32 holders of record of our common stock. This number does not include beneficial owners whose 
shares are held by nominees in street name.

Dividends

We have not declared or paid any cash dividends on our capital stock since our inception. We intend to retain future earnings, if any, to finance the 
operation and expansion of our business and do not anticipate paying any cash dividends to holders of common stock in the foreseeable future.

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Stock Performance Graph

The following performance graph and related information shall not be deemed to be “soliciting material” or to be “filed” with the Securities and Exchange 
Commission, or SEC, for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, nor shall such information be 
incorporated by reference into any future filing under the Exchange Act or Securities Act of 1933, as amended, or the Securities Act, except to the extent 
that we specifically incorporate it by reference into such filing.

The graph set forth below compares the cumulative total stockholder return on our shares of common stock between February 6, 2020 (the date of our 
initial public offering) and December 31, 2022, with the cumulative total return of (a) the Nasdaq Biotechnology Index and (b) the Nasdaq Composite 
Index, over the same period. This graph assumes the investment of $100 on February 6, 2020 in our common stock, the Nasdaq Biotechnology Index and 
the Nasdaq Composite Index and assumes the reinvestment of dividends, if any. The graph uses the closing sales price of our common stock of $18.75 per 
share on February 6, 2020 as the initial value of our common stock and not the initial offering price to the public of $17.00 per share. The comparisons 
shown in the graph below are based upon historical data. The stock price performance included in this graph is not necessarily indicative of future stock 
price performance.

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Purchases of equity securities by the issuer or affiliated purchasers

Neither we nor any affiliated purchaser or anyone acting on our behalf or on behalf of an affiliated purchaser made any purchases of shares of our common 
stock during the fourth quarter of 2022.

Item 6. [Reserved]

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Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations. 

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our consolidated financial 
statements and the related notes to those statements included elsewhere in this Annual Report on Form 10-K. In addition to historical financial 
information, the following discussion and analysis contains forward-looking statements that involve risks, uncertainties and assumptions. Some of the 
numbers included herein have been rounded for the convenience of presentation. Our actual results may differ materially from those anticipated in these 
forward-looking statements as a result of many factors, including those discussed under Item 1A, Risk factors, in this Annual Report on Form 10-K. 

Overview 

We are a biotechnology company committed to establishing the leading, fully integrated platform for precision genetic medicines. Our vision is to provide 
life-long cures to patients suffering from serious diseases. To achieve this vision, we have assembled a platform that includes a suite of gene editing and 
delivery technologies and are establishing internal manufacturing capabilities. Our suite of gene editing technologies is anchored by our proprietary base 
editing technology, which potentially enables a differentiated class of precision genetic medicines that target a single base in the genome without making a 
double-stranded break in the DNA. This approach uses a chemical reaction designed to create precise, predictable and efficient genetic outcomes at the 
targeted sequence. Our proprietary base editors have two principal components: (i) a clustered regularly interspaced short palindromic repeats, or CRISPR, 
protein, bound to a guide RNA, that leverages the established DNA-targeting ability of CRISPR, but is modified to not cause a double-stranded break, and 
(ii) a base editing enzyme, such as a deaminase, which carries out the desired chemical modification of the target DNA base. We believe this design 
contributes to a more precise and efficient edit compared to traditional gene editing methods, which operate by creating targeted double-stranded breaks in 
the DNA that can result in unwanted DNA modifications. We believe that the precision of our editors will dramatically increase the impact of gene editing 
for a broad range of therapeutic applications. 

To unlock the full potential of our base editing technology across a wide range of therapeutic applications, we are pursuing a broad suite of both clinically 
validated and novel delivery modalities, depending on tissue type, including both ex vivo approaches in our hematology and immunology-oncology 
portfolios as well as in vivo approaches across our programs. 

The elegance of the base editing approach combined with a tissue specific delivery modality provides the basis for a targeted efficient, precise, and highly 
versatile gene editing system, capable of gene correction, gene modification, gene silencing or gene activation, and/or multiplex editing of several genes 
simultaneously. We are currently advancing a broad, diversified portfolio of base editing programs against distinct editing targets, utilizing the full range of 
our development capabilities. We believe the flexibility and versatility of our base editors and delivery technologies may have broad therapeutic 
applicability and have the potential to transform the field of precision genetic medicines.

We believe that building an integrated platform combining our gene editing capabilities with advanced delivery and manufacturing capabilities will give us 
the flexibility to develop our own sustainable portfolio and to create a hub for partnering with other companies to unlock the full potential of precision 
genetic medicine across a broad array of possible applications.

Manufacturing 

To realize the full potential of base editors as a differentiated class of medicines and to enable our parallel investment strategy in multiple delivery 
modalities, we are building customized and integrated capabilities across discovery, manufacturing, and preclinical and clinical development. Due to the 
critical importance of high-quality manufacturing and control of production timing and know-how, we are establishing our own manufacturing facility, 
which will provide us the flexibility to manufacture a variety of different product modalities. We believe this investment will maximize the value of our 
portfolio and capabilities, the probability of technical success of our programs, and the speed at which we can provide potentially life-long cures to patients.

We have a 100,000 square foot manufacturing facility in Research Triangle Park, North Carolina intended to support a broad range of clinical programs. 
The facility became operational in the first quarter of 2023, and we expect it to initiate cGMP operations in late 2023. The project is facilitated, in part, by a 
Job Development Investment Grant approved by the North Carolina Economic Investment Committee, which authorizes potential reimbursements based on 
new tax revenues generated through the project. The facility is designed to support manufacturing for our ex vivo cell therapy programs in hematology and 
oncology and in vivo non-viral delivery programs for liver diseases, with the capability to scale-up to support potential commercial supply. 

For our initial waves of clinical trials, we expect to use CMOs with relevant manufacturing experience in genetic medicines alongside our internal 
manufacturing capabilities. 

Acquisitions

In February 2021, we acquired Guide Therapeutics, Inc., or Guide, for upfront consideration in an aggregate amount of $120.0 million, excluding 
customary purchase price adjustments, in shares of our common stock, based upon the volume-weighted average price of the common stock over the ten 
trading-day period ending on February 19, 2021. In addition, Guide’s former stockholders and optionholders are eligible to receive up to an additional 
$100.0 million in technology milestone payments and $220.0 million in product milestone payments, payable in our common stock.

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COVID-19 

While the COVID-19 pandemic did not significantly impact our business or results of operations during the year ended December 31, 2022, the extent to 
which the COVID-19 pandemic or any other public health emergency impacts our business, our corporate development objectives, results of operations and 
financial condition in future periods will depend on developments that are uncertain. Disruptions to the global economy and supply chain, disruption of 
global healthcare systems, and other significant impacts of the COVID-19 pandemic or other health emergencies could have a material adverse effect on 
our business, financial condition, results of operations and growth prospects. 

For a more detailed discussion of risks related to COVID-19 and other health emergencies, please see Part II, Item 1A, Risk factors—General risk factors, 
in this Annual Report on Form 10-K.

Financial operations overview

General

We were founded in January 2017 and began operations in July 2017. Since our inception, we have devoted substantially all of our resources to building 
our base editing platform and advancing development of our portfolio of programs, establishing and protecting our intellectual property, conducting 
research and development activities, organizing and staffing our company, business planning, raising capital and providing general and administrative 
support for these operations. To date, we have financed our operations primarily through the sales of our redeemable convertible preferred stock, proceeds 
from offerings of our common stock and payments received under collaboration and license agreements.

We are an early-stage company, and the majority of our programs are at a preclinical or early clinical stage of development. To date, we have not generated 
any revenue from product sales and do not expect to generate revenue from the sale of products for the foreseeable future. Our revenue to date has been 
primarily derived from license and collaboration agreements with partners. Since inception we have incurred significant operating losses. Our net losses for 
the years ended December 31, 2022, 2021 and 2020 were $289.1 million, $370.6 million and $194.6 million, respectively. As of December 31, 2022, we 
had an accumulated deficit of $1.1 billion. We expect to continue to incur significant expenses and increasing operating losses in connection with ongoing 
development activities related to our internal programs and collaborations as we continue our preclinical and clinical development of product candidates; 
advance additional product candidates toward clinical development; operate our cGMP facility in North Carolina; further develop our base editing 
platform; continue to make investments in delivery technology for our base editors, including the LNP technology we acquired through our acquisition of 
Guide; conduct research activities as we seek to discover and develop additional product candidates; maintain, expand, enforce, defend and protect our 
intellectual property portfolio; and continue to hire research and development, clinical, technical operations and commercial personnel. In addition, we 
expect to continue to incur the costs associated with operating as a public company.

As a result of these anticipated expenditures, we will need to raise additional capital to support our continuing operations and pursue our growth strategy. 
Until such time as we can generate significant revenue from product sales, if ever, we expect to finance our operations through a combination of equity 
offerings, debt financings, collaborations, strategic alliances, and licensing arrangements. We may be unable to raise additional funds or enter into such 
other agreements when needed on favorable terms or at all. Our inability to raise capital as and when needed would have a negative impact on our financial 
condition and our ability to pursue our business strategy. We can give no assurance that we will be able to secure such additional sources of capital to 
support our operations, or, if such capital is available to us, that such additional capital will be sufficient to meet our needs for the short or long term.

118

 
Revenue Recognition

In April 2019, we entered into a collaboration and license agreement, or the Verve Agreement, with Verve Therapeutics, Inc., or Verve, a company focused 
on gene editing for cardiovascular disease treatments. In June 2021, we entered into a research collaboration agreement, or the Apellis Agreement, with 
Apellis Pharmaceuticals, Inc., or Apellis, focused on the use of certain of our base editing technology to discover new treatments for complement system-
driven diseases. In October 2021, we entered into an option and license agreement, or the Sana Agreement, with Sana Biotechnology, Inc., or Sana, 
pursuant to which we granted Sana non-exclusive research and development and commercial rights to our CRISPR Cas12b technology to perform nuclease 
editing for certain ex vivo engineered cell therapy programs. In December 2021, we entered into a four-year research collaboration agreement, or the Pfizer 
Agreement, with Pfizer Inc., or Pfizer, focused on in vivo base editing programs for three targets for rare genetic diseases of the liver, muscle and central 
nervous system. In September 2022, we entered into a License and Research Collaboration Agreement, or the Orbital Agreement, with Orbital 
Therapeutics, Inc., or Orbital, a newly formed entity focused on advancing non-viral delivery and RNA technologies.

We have not generated any revenue to date from product sales and do not expect to do so in the near future. During the years ended December 31, 2022, 
2021, and 2020, we recognized $60.9 million, $51.8 million and $24,000 respectively, of revenue from our license and collaboration agreements. 

For additional information about our revenue recognition policy, see Note 2 and Note 11 of the notes to our audited consolidated financial statements 
included in this Annual Report on Form 10-K.

Research and development expenses 

Research and development expenses consist of costs incurred in performing research and development activities, which include: 

•

•

•

•

•

•

•

•

•

•

Expenses incurred in connection with investments in delivery technology for our base editors, including the LNP technology we acquired 
through our acquisition of Guide;

the cost to obtain licenses to intellectual property, such as those with Harvard University, or Harvard, The Broad Institute, Inc., or Broad 
Institute, Editas Medicine, Inc, or Editas, and Bio Palette Co., Ltd., or Bio Palette, and related future payments should certain success, 
development and regulatory milestones be achieved; 

personnel-related expenses, including salaries, bonuses, benefits and stock-based compensation for employees engaged in research and 
development functions; 

expenses incurred in connection with the discovery and preclinical development of our research programs, including under agreements with 
third parties, such as consultants, contractors and contract research organizations; 

expenses incurred in connection with our clinical trials, including CRO costs and costs related to study preparation;

expenses incurred in connection with regulatory filings; 

expenses incurred in connection with the building of our base editing platform;

the cost of manufacturing for use in our preclinical studies, IND-enabling studies and clinical trials; 

laboratory supplies and research materials; and 

facilities, depreciation and other expenses which include direct and allocated expenses. 

Our external research and development expenses support our various preclinical and clinical programs. Our internal research and development expenses 
consist of employee-related expenses, facility-related expenses, and other indirect research and development expenses incurred in support of overall 
research and development. We expense research and development costs as incurred. Advance payments that we make for goods or services to be received 
in the future for use in research and development activities are recorded as prepaid expenses. The prepaid amounts are expensed as the benefits are 
consumed. 

In the early phases of development, our research and development costs are often devoted to product platform and proof-of-concept preclinical studies that 
are not necessarily allocable to a specific target.

We expect that our research and development expenses will increase substantially as we advance our programs through their planned preclinical and 
clinical development. 

119

 
General and administrative expenses 

General and administrative expenses consist primarily of salaries and other related costs, including stock-based compensation, for personnel in our 
executive, intellectual property, business development and administrative functions. General and administrative expenses also include legal fees relating to 
intellectual property and corporate matters, professional fees for accounting, auditing, tax and consulting services, insurance costs, travel, and direct and 
allocated facility related expenses and other operating costs. 

We anticipate that our general and administrative expenses will increase in the future to support our increased research and development activities. We also 
expect to continue to incur costs associated with being a public company and maintaining controls over financial reporting, including costs of accounting, 
audit, legal, regulatory and tax-related services associated with maintaining compliance with Nasdaq and SEC requirements, director and officer insurance 
costs, and investor and public relations costs. 

Other income and expenses 

Other income and expenses consist of the following items:

•

•

•

•

Change in fair value of derivative liabilities consists primarily of remeasurement gains or losses associated with changes in success payment 
liabilities associated with our license agreement with Harvard, dated as of June 27, 2017, as amended, or the Harvard License Agreement, 
and the license agreement with The Broad Institute, as amended, dated as of May 9, 2018, or the Broad License Agreement.

Change in fair value of non-controlling equity investments consists of mark-to-market adjustments related to our investments in equity 
securities.

Change in fair value of contingent consideration liabilities consists of remeasurement of the fair market value of the technology and product 
contingent consideration liabilities related to the acquisition of Guide.

Interest and other income (expense), net consists primarily of interest income as well as interest expense related to our equipment financings.

Results of operations 

Comparison of the years ended December 31, 2022 and 2021 

The following table summarizes our results of operations (in thousands):

License and collaboration revenue
Operating expenses:

Research and development
General and administrative
Total operating expenses

Loss from operations
Other income (expense):

Change in fair value of derivative liabilities
Change in fair value of non-controlling equity investments
Change in fair value of contingent consideration liabilities
Interest and other income (expense), net

Total other income (expense)

Net loss before income taxes
Provision for income taxes
Loss from equity method investment

Net loss

License and collaboration revenue 

Years Ended December 31,

2022

2021

Change

  $

60,920  

  $

51,844     $

9,076  

311,594    
87,805    
399,399    
(338,479 )  

23,900    
20,200    
18,904    
15,297    
78,301    
(260,178 )  
(3,410 )  
(25,500 )  
(289,088 )   $

387,087    
57,222    
444,309    
(392,465 )  

(1,000 )  
17,690    
5,146    
(9 )  
21,827    
(370,638 )  
—    
—    

(370,638 )   $

(75,493 )
30,583  
(44,910 )
53,986  

24,900  
2,510  
13,758  
15,306  
56,474  
110,460  
(3,410 )
(25,500 )
81,550  

  $

License and collaboration revenue was approximately $60.9 million for the year ended December 31, 2022 compared to approximately $51.8 million for 
the year ended December 31, 2021. License and collaboration revenue recorded in 2022 represents revenue recorded under the Pfizer, Apellis, Orbital and 
Verve Agreements. In 2021, we recorded $50.0 million of license revenue related to the Sana Agreement as well as revenue related to the Apellis and Verve 
Agreements.

120

 
 
 
 
   
 
 
 
 
   
   
 
 
     
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Research and development expenses 

Research and development expenses were $311.6 million and $387.1 million for the years ended December 31, 2022 and 2021, respectively. The following 
table summarizes our research and development expenses for the years ended December 31, 2022 and December 31, 2021, together with the changes in 
those items in dollars (in thousands):

External research and development expenses
In-process research and development
Employee related expenses
Facility and IT related expenses
Stock-based compensation expense
Other expenses
Total research and development expenses

Years Ended December 31,

2022

2021

Change

  $

  $

111,831     $

—    
89,547    
54,048    
52,004    
4,164    
311,594     $

78,232     $

154,953    
47,823    
36,744    
26,644    
42,691    
387,087     $

33,599  
(154,953 )
41,724  
17,304  
25,360  
(38,527 )
(75,493 )

The decrease of $75.5 million was primarily due to the following: 

•

•

A decrease of $155.0 million of in-process research and development expense due to an asset acquired from Guide during the year ended 
December 31, 2021, that was determined to have no alternative future use; and 

A decrease of $38.5 million in other expenses, primarily related to decreases in sublicense expenses related to the Apellis, Sana and Pfizer 
Agreements and related milestones, as well as a decrease in amortization expense related to intangible assets acquired from Guide.

The decrease was partially offset by the following:

•

•

•

An increase of $41.7 million of employee related expenses and $17.3 million of facility and IT related costs, including depreciation. These 
increases were due to the growth in the number of research and development employees from 279 at December 31, 2021 to 416 at December 
31, 2022, and their related activities, as well as the expense allocated to research and development related to our leased facilities;

A $33.6 million increase in external research and development expenses driven by a $19.7 million increase in outsourced services, due 
primarily to animal studies conducted to further our LNP platform, IND enabling activities for lead programs and clinical and manufacturing 
expenses for BEAM-101. Also contributing to the rise in external research and development expenses is an increase of $13.9 million in lab 
supplies due to the movement of our lead programs into IND-enabling activities and continued investment in platform and discovery efforts.

An increase of $25.4 million in stock-based compensation from additional stock options and restricted stock units granted due to the increase 
in the number of research and development employees and additional grants given to existing employees.

Research and development expenses are expected to continue to increase as we advance clinical trials for BEAM-101 and BEAM-201, advance preclinical 
studies for BEAM-301 and BEAM-302, continue our current research programs, initiate new research programs, continue the preclinical and clinical 
development of our product candidates and conduct any future preclinical studies and begin to enroll patients in and conduct clinical trials for any of our 
product candidates. 

General and administrative expenses 

General and administrative expenses were $87.8 million and $57.2 million for the years ended December 31, 2022 and 2021, respectively. The increase of 
$30.6 million was primarily due to the following: 

•

•

•

An increase of $15.4 million in stock-based compensation from additional stock options and restricted stock units granted due to an increase 
in the number of general and administrative employees from 62 employees as of December 31, 2021 to 91 employees as of December 31, 
2022, and additional grants given to existing employees, offset by a decrease in the value of our common stock;

An increase of $10.9 million in personnel related costs due to the increase in the number of general and administrative employees; and

An increase of $4.4 million in legal costs primarily due to a $3.4 million accrual in connection with a dispute with a research institution and 
legal fees incurred in connection with business development activities; see Note 6 to our consolidated financial statements for more 
information regarding the dispute.

121

 
 
 
   
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Change in fair value of derivative liabilities 

During the year ended December 31, 2022, we recorded $23.9 million of other income related to the change in fair value of the success payment liabilities 
as compared to $1.0 million of expense for the year ended December 31, 2021, driven by the decline in the price of our common stock. A portion of the 
success payments was paid in June 2021; the remaining success payment obligations are still outstanding as of December 31, 2022 and will continue to be 
revalued at each reporting period. 

Change in fair value of non-controlling equity investments

During the years ended December 31, 2022 and 2021, we recorded other income of $20.2 million and $17.7 million, respectively, driven by changes in the 
value of our investments in Prime and Verve. 

Change in contingent consideration liabilities

During the years ended December 31, 2022 and 2021, we recorded $18.9 million and $5.1 million, respectively, of other income related to the change in 
fair value of the Guide technology and product contingent consideration liabilities as a result of an update in project timelines and the expected probability 
of achievement of the milestones. 

Interest and other income (expense), net

Interest and other income (expense), net was $15.3 million of other income for the year ended December 31, 2022 as compared to $9,000 of expense for the 
year ended December 31, 2021. The increase was primarily due to increases in interest income driven by increased market rates and growth of our 
portfolio.

Provision for income taxes

We recorded an income tax provision of $3.4 million for the year ended December 31, 2022. The provision is primarily attributable to the recognition of 
revenue for tax purposes under the collaboration agreements with Apellis and Pfizer, which were deferred in 2021 for tax purposes as well as the 
requirement under the Tax Cuts and Jobs Act of 2017 for taxpayers to capitalize and amortize research and development expenditures over five or fifteen 
years. There was no income tax provision recorded during the year ended December 31, 2021.

Loss from equity method investment

We record our share of gains or losses from Orbital on a quarterly basis. For the year ended December 31, 2022, we recorded a loss from equity method 
investment of $25.5 million in association with a basis difference attributable to Orbital's in-process research and development with no alternative future 
use, which was immediately expensed as of the date of this investment. As of December 31, 2022, the investment had been written down to zero. See Notes 
2 and 8 to our consolidated financial statements for more information regarding the equity method of accounting.

Comparison of the years ended December 31, 2021 and 2020

The following table summarizes our results of operations (in thousands):

License and collaboration revenue
Operating expenses:

Research and development
General and administrative
Total operating expenses

Loss from operations
Other income (expense):

Change in fair value of derivative liabilities
Change in fair value of non-controlling equity investments
Change in fair value of contingent consideration liabilities
Interest and other income (expense), net

Total other income (expense)

Net loss

License revenue

Years Ended December 31,

2021

2020

Change

  $

51,844  

  $

24     $

51,820  

387,087    
57,222    
444,309    
(392,465 )  

(1,000 )  
17,690    
5,146    
(9 )  
21,827    
(370,638 )   $

103,179    
29,605    
132,784    
(132,760 )  

(63,400 )  
517    
—    
1,051    
(61,832 )  
(194,592 )   $

283,908  
27,617  
311,525  
(259,705 )

62,400  
17,173  
5,146  
(1,060 )
83,659  
(176,046 )

  $

License and collaboration revenue was approximately $51.8 million for the year ended December 31, 2021 compared to approximately $24,000 for the year 
ended December 31, 2020. License and collaboration revenue recorded in 2021 represents revenue recorded under the Sana, Apellis, and Verve 
Agreements. License and collaboration revenue recorded in 2020 represents revenue recorded under the Verve Agreement. 

122

 
 
 
 
   
 
 
 
 
   
   
 
 
     
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Research and development expenses

Research and development expenses were $387.1 million and $103.2 million for the years ended December 31, 2021 and 2020, respectively. The following 
table summarizes our research and development expenses for the years ended December 31, 2021 and December 31, 2020, together with the changes in 
those items in dollars (in thousands): 

External research and development expenses
In-process research and development
Employee related expenses
Facility and IT related expenses
Stock-based compensation expense
Other expenses
Total research and development expenses

Years Ended December 31,

2021

2020

Change

  $

  $

78,232     $

154,953    
47,823    
36,744    
26,644    
42,691    
387,087     $

41,340     $
—    
25,423    
15,753    
11,199    
9,464    
103,179     $

36,892  
154,953  
22,400  
20,991  
15,445  
33,227  
283,908  

The increase of $283.9 million was primarily due to the following: 

•

•

•

•

•

A $155.0 million increase of in-process research and development expense due to an asset acquired from Guide during the year ended 
December 31, 2021, that was determined to have no alternative future use;

A $36.9 million increase in external research and development expenses due primarily to outsourced services focused on IND-enabling 
manufacturing activities, toxicology studies and clinical readiness spend for our lead programs as well as an increase in lab supplies driven 
by IND-enabling activities and continued investment in platform and discovery efforts;

An increase of $33.2 million in other expenses primarily related to increases in non-royalty sublicense income payment obligations to our 
licensors;

Increases of $22.4 million and $21.0 million in employee related expenses and facility related expenses, respectively. These increases were 
due to the growth in the number of research and development employees from 149 at December 31, 2020 to 279 at December 31, 2021, and 
their related activities, as well as the expense allocated to research and development related to our leased facilities; and

An increase of $15.4 million in stock-based compensation from additional stock options and restricted stock units granted due to the increase 
in the number of research and development employees, and additional grants given to existing employees, as well as an increase in the value 
of our common stock.

General and administrative expenses

General and administrative expenses were $57.2 million and $29.6 million for the years ended December 31, 2021 and 2020, respectively. The increase of 
$27.6 million was primarily due to the following: 

•

•

•

•

An increase of $12.8 million in stock-based compensation from additional stock options and restricted stock units granted due to an increase 
in the number of general and administrative employees from 32 employees as of December 31, 2020 to 62 employees as of December 31, 
2021, and additional grants given to existing employees, as well as an increase in the value of our common stock;

Increases of $9.3 million in personnel related costs and $1.3 million in facility related costs, including depreciation costs, due to the increase 
in the number of general and administrative employees, as well as the expense allocated to general and administrative expenses related to our 
leased facilities;

An increase of $3.2 million in legal costs primarily due to legal fees incurred in connection with our acquisition of Guide, as well as legal 
fees incurred in connection with the Apellis, Sana and Pfizer Agreements; and 

An increase of $1.6 million in insurance costs due to increased directors and officers insurance costs as a result of our IPO in February 2020 
and insurance costs related to our acquisition of Guide in 2021.

Change in fair value of derivative liabilities 

During the year ended December 31, 2021, we recorded $1.0 million of expense related to the change in fair value expense related to the success payment 
liabilities as compared to $63.4 million of expense for the year ended December 31, 2020. We did not experience a significant change in our closing stock 
price at the end of 2021 as compared to the closing stock price at the end of 2020. A portion of the success payments was paid in June 2021; the remaining 
success payment obligations are still outstanding as of December 31, 2021 and will continue to be revalued at each reporting period. 

123

 
 
 
   
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Change in fair value of non-controlling equity investments

During the years ended December 31, 2021 and 2020, we recorded other income of $17.7 million and $0.5 million, respectively, as a result of increases in 
the value of our investment in Verve's common stock.

Change in contingent consideration liabilities

During the year ended December 31, 2021, we recorded $5.1 million of other income related to the change in fair value of the Guide technology and 
product contingent consideration liabilities as a result of an update in project timelines and the expected probability of achievement of the milestones.

Interest and other income (expense), net

Interest and other income (expense), net was $9,000 of other expense for the year ended December 31, 2021 as compared to $1.1 million of income for the 
year ended December 31, 2020. The decrease was primarily due to interest expense on our equipment financing, which was greater than interest income, 
driven by a decrease in interest rates earned on our investments.

Liquidity and capital resources 

Since our inception in January 2017, we have not generated any revenue from product sales, have generated only limited revenue from our license and 
collaboration agreements, and have incurred significant operating losses and negative cash flows from our operations. We expect to incur significant 
expenses and operating losses for the foreseeable future as we advance the preclinical and the clinical development of our product candidates. 

To date, we have funded our operations primarily through equity offerings. In February 2020, we completed our IPO in which we issued and sold 
12,176,471 shares of our common stock, including 1,588,235 shares of common stock sold pursuant to the underwriters’ full exercise of their option to 
purchase additional shares, at a public offering price of $17.00 per share. We received net proceeds from our IPO of $188.3 million, after deducting 
underwriting discounts and offering expenses payable by us. In October 2020, we issued and sold 5,750,000 shares of our common stock, including 
750,000 shares pursuant to the full exercise of the underwriters’ option to purchase additional shares, at a public offering price of $23.50 per share, for 
aggregate gross proceeds of $135.1 million. We received approximately $126.6 million in net proceeds after deducting applicable underwriting discounts 
and offering expenses. In January 2021, we issued and sold 2,795,700 shares of our common stock in a private placement at an offering price of $93.00 per 
share for aggregate gross proceeds of $260.0 million. We received $252.0 million in net proceeds after deducting offering expenses payable by us. 

In April 2021, we filed a universal automatic shelf registration statement on Form S-3 with the SEC, or the 2021 Shelf, to register for sale an indeterminate 
amount of our common stock, preferred stock, debt securities, warrants and/or units in one or more offerings, which became effective upon filing with the 
SEC (File No. 333-254946).

In April 2021, we entered into an at the market, or ATM, sales agreement, or the Sales Agreement, with Jefferies LLC, or Jefferies, pursuant to which we 
were entitled to offer and sell, from time to time at prevailing market prices, shares of our common stock having aggregate gross proceeds of up to $300.0 
million. We agreed to pay Jefferies a commission of up to 3.0% of the aggregate gross sale proceeds of any shares sold by Jefferies under the Sales 
Agreement. As of December 31, 2022, we have sold 2,908,009 shares of our common stock under the Sales Agreement at an average price of $103.16 per 
share for aggregate gross proceeds of $300.0 million, before deducting commissions and offering expenses payable by us.

In July 2021, we and Jefferies entered into an amendment to the Sales Agreement to provide for an increase in the aggregate offering amount under the 
Sales Agreement, such that as of July 7, 2021, we may offer and sell shares of common stock having an aggregate offering price of an additional $500.0 
million. As of December 31, 2022, we have sold 3,908,289 additional shares of our common stock under the amended Sales Agreement at an average price 
of $82.38 per share for aggregate gross proceeds of $322.0 million, before deducting commissions and offering expenses payable by us, resulting in an 
aggregate of $622.0 million in gross proceeds received under the Sales Agreement as of December 31, 2022.

In June 2021, we entered into the Apellis Agreement, which is focused on the use of certain of our base editing technology to discover new treatments for 
complement system-driven diseases. Pursuant to the Apellis Agreement, we received an upfront payment of $50.0 million in July 2021 and were eligible to 
receive an additional $25.0 million payment on the one-year anniversary of the effective date of the Apellis Agreement, or the First Anniversary Payment. 
In June 2022, we received the $25.0 million First Anniversary Payment.

In October 2021, we entered into the Sana Agreement, pursuant to which we granted Sana non-exclusive research and development commercial rights to 
our CRISPR Cas12b technology to perform nuclease editing for certain ex vivo engineered cell therapy programs. Pursuant to the Sana Agreement, we 
received an upfront payment of $50.0 million in October 2021. 

In December 2021, we entered into the Pfizer Agreement, which is focused on in vivo base editing programs for three targets for rare genetic diseases of 
the liver, muscle and central nervous system. Under the terms of the Pfizer Agreement, we will conduct all research activities through development 
candidate selection for three undisclosed targets, which are not included in our existing programs. Pursuant to the Pfizer Agreement, we received an upfront 
payment of $300.0 million in January 2022.

124

 
As of December 31, 2022, we had $1.1 billion in cash, cash equivalents, and marketable securities.

We are required to make success payments to Harvard and Broad Institute based on increases in the per share fair market value of our Series A-1 Preferred 
Stock and Series A-2 Preferred Stock or, subsequent to our IPO, our common stock. The amounts due may be settled in cash or shares of our common 
stock, at our discretion. In May 2021, the first success payment measurements occurred and success payments to Harvard and Broad Institute were 
calculated to be $15.0 million and $15.0 million, respectively. We elected to make each payment in shares of our common stock and issued 174,825 shares 
to each of Harvard and Broad Institute to settle these liabilities in June 2021. We may additionally owe Harvard and Broad Institute success payments of up 
to an additional $90.0 million each.

We have not yet commercialized any of our product candidates, and we do not expect to generate revenue from the sale of our product candidates for the 
foreseeable future. We anticipate that we may need to raise additional capital in order to continue to fund our research and development, including our 
planned preclinical studies and clinical trials, building, maintaining and operating a commercial-scale cGMP manufacturing facility, and new product 
development, as well as to fund our general operations. As necessary, we will seek to raise additional capital through various potential sources, such as 
equity and debt financings or through corporate collaboration and license agreements. We can give no assurances that we will be able to secure such 
additional sources of capital to support our operations, or, if such funds are available to us, that such additional financing will be sufficient to meet our 
needs. 

Cash flows

The following table summarizes our sources and uses of cash (in thousands): 

Net cash provided by (used in) operating activities
Net cash used in investing activities
Net cash provided by financing activities

Net change in cash, cash equivalents and restricted cash

Operating activities 

2022

Years Ended December 31,
2021

2020

  $

  $

22,527     $

(461,336 )  
111,590    
(327,219 )   $

(66,268 )   $

(294,144 )  
756,141    
395,729     $

(95,741 )
(100,123 )
322,322  
126,458  

Net cash provided by operating activities for the year ended December 31, 2022 was $22.5 million, consisting primarily of the collection of collaboration 
receivables of $300.0 million related to the Pfizer Agreement, an increase in operating lease liabilities of $12.4 million and an increase in accounts payable 
of $2.4 million, as well as noncash items consisting of stock-based compensation expense of $84.3 million, a loss from an equity method investment of 
$25.5 million, depreciation and amortization expense of $14.1 million and changes in operating lease ROU assets of $8.4 million. 

These sources of cash were offset in part by our net loss of $289.1 million, a decrease in deferred revenue of $35.9 million, net of the $25.0 million First 
Anniversary Payment collected from Apellis during the twelve months ended December 31, 2022, decreases in accrued expenses and other liabilities of 
$16.9 million, an increase in prepaid expenses and other current assets of $7.8 million and a decrease in other long-term liabilities of $2.6 million, as well 
as noncash items including a decrease in the fair value of derivative liabilities of $23.9 million, an increase in the fair value of non-controlling equity 
investments of $20.2 million, a change in the fair value of contingent consideration liabilities of $18.9 million and amortization of investment premiums of 
$9.4 million.

Net cash used in operating activities for the year ended December 31, 2021 was $66.3 million, consisting primarily of our net loss of $370.6 million and an 
increase in collaboration receivable of $300.0 million, primarily related to the Pfizer Agreement, as well as noncash items including an increase in the fair 
value of a non-controlling equity investment of $17.7 million and a change in the fair value of contingent consideration liabilities of $5.1 million. These 
uses of cash were offset in part by cash provided by increases in deferred revenue of $348.2 million, primarily related to the Pfizer and Apellis Agreements, 
other accrued expenses and other liabilities of $43.9 million, operating lease liabilities of $16.0 million and accounts payable and other long-term liabilities 
of $2.6 million as well as noncash items consisting primarily of in-process research and development of $155.0 million, stock-based compensation expense 
of $43.6 million, change in operating lease ROU assets of $9.0 million, depreciation and amortization expense of $7.5 million and change in fair value of 
derivative liabilities of $1.0 million.

Net cash used in operating activities for the year ended December 31, 2020 was $95.7 million, consisting primarily of our net loss of $194.6 million and an 
increase in prepaid expenses and other current assets of $5.7 million, offset by cash provided by increases in accrued expenses of $7.0 million, operating 
lease liabilities of $3.2 million and long-term liabilities of $1.0 million. Net cash used in operating activities was also offset by non-cash charges consisting 
primarily of a change in the fair value of derivative liabilities of $63.4 million, stock-based compensation expense of $15.4 million, non-cash license 
expenses of $5.7 million, depreciation of $4.7 million, and non-cash lease expense of $4.7 million, offset by a $0.5 million non-cash change in the fair 
value of equity investments.

125

 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 Investing activities 

For the year ended December 31, 2022, cash used in investing activities was primarily the net result of purchases of marketable securities partially offset by 
maturities of marketable securities of $412.4 million, in addition to purchases of property and equipment of $49.0 million. 

For the year ended December 31, 2021, cash used in investing activities was primarily the net result of purchases of marketable securities partially offset by 
maturities of marketable securities of $248.0 million, in addition to purchases of property and equipment of $46.8 million. We also received $0.6 million in 
net cash from our acquisition of Guide, after the payment of acquisition costs.

For the year ended December 31, 2020, cash used in investing activities was primarily the net result of purchases of marketable securities partially offset by 
maturities of marketable securities of $83.0 million, in addition to purchases of property and equipment of $16.4 million.

Financing activities 

Net cash provided by financing activities for the year ended December 31, 2022 consisted primarily of proceeds from equity offerings of $108.3 million, 
net of sales commissions, $3.1 million of proceeds from the issuance of common stock under our Employee Stock Purchase Plan, and $2.7 million of 
proceeds from the exercise of stock options, offset in part by repayments of equipment financing liabilities of $2.3 million and payment of equity offering 
costs of $0.2 million.

Net cash provided by financing activities for the year ended December 31, 2021 consisted primarily of proceeds from equity offerings of $757.4 million, 
net of sales commissions and underwriting discounts, and proceeds from the exercise of stock options of $9.6 million, offset in part by the payment of 
equity offering costs of $8.8 million and repayments of equipment financing liabilities of $2.1 million.

Net cash provided by financing activities for the year ended December 31, 2020 consisted primarily of proceeds from our IPO and follow-on public 
offering of $319.5 million, net of underwriting discounts, net proceeds of $3.3 million from equipment financing, and proceeds from the exercise of stock 
options of $3.2 million, offset in part by the payment of equity offering costs of $2.1 million and repayments of equipment financing liabilities of $1.6 
million.

Funding requirements 

Our operating expenses have increased and are expected to continue to increase substantially as we continue to advance our portfolio of programs. 

Specifically, our expenses will increase if and as we: 

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advance clinical trials of our product candidates, including our BEACON trial and our trial of BEAM-201;

continue our research programs and our preclinical development of product candidates from our research programs; 

seek to identify additional research programs and additional product candidates; 

initiate preclinical studies and clinical trials for additional product candidates we identify and develop; 

maintain, expand, enforce, defend, and protect our intellectual property portfolio and provide reimbursement of third-party expenses related 
to our patent portfolio;

seek marketing approvals for any of our product candidates that successfully complete clinical trials; 

establish a sales, marketing, and distribution infrastructure to commercialize any medicines for which we may obtain marketing approval;

further develop our base editing platform; 

further develop delivery technology for our base editors, including the LNP technology we acquired through our acquisition of Guide;

continue to hire additional personnel including research and development, clinical and commercial personnel; 

add operational, financial, and management information systems and personnel, including personnel to support our product development; 

acquire or in-license products, intellectual property, medicines and technologies; and

maintain and operate a commercial-scale cGMP manufacturing facility.

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We expect that our cash, cash equivalents at December 31, 2022 will enable us to fund our current and planned operating expenses and capital expenditures 
for at least the twelve calendar months beginning January 1, 2023, and beyond such twelve-month period. We have based these estimates on assumptions 
that may prove to be imprecise, and we may exhaust our available capital resources sooner that we currently expect. Because of the numerous risks and 
uncertainties associated with the development our programs, we are unable to estimate the amounts of increased capital outlays and operating expenses 
associated with completing the research and development of our product candidates.

Our future funding requirements will depend on many factors including: 

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the cost of continuing to build our base editing platform; 

the costs of acquiring licenses for the delivery modalities that will be used with our product candidates; 

the scope, progress, results, and costs of discovery, preclinical development, laboratory testing, manufacturing and clinical trials for the 
product candidates we may develop; 

the costs of preparing, filing, and prosecuting patent applications, maintaining and enforcing our intellectual property and proprietary rights, 
and defending intellectual property-related claims; 

the costs, timing, and outcome of regulatory review of the product candidates we develop; 

the costs of future activities, including product sales, medical affairs, marketing, manufacturing, distribution, coverage and reimbursement for 
any product candidates for which we receive regulatory approval; 

the success of our license agreements and our collaborations; 

our ability to establish and maintain additional collaborations on favorable terms, if at all; 

the achievement of milestones or occurrence of other developments that trigger payments under any collaboration agreements we are a party 
to or may become a party to, including our agreement with Guide; 

the payment of success liabilities to Harvard and Broad Institute pursuant to the respective terms of the Harvard License Agreement and the 
Broad Institute License Agreement, should we choose to pay in cash;

the extent to which we acquire or in-license products, intellectual property, and technologies; 

the costs of obtaining, building, operating and expanding our manufacturing capacity; and

the impact on our business of macro-economic conditions, as well as the prevailing level of macro-economic, business, and operational 
uncertainty, including as a result of geopolitical events or other global or regional events such as the COVID-19 pandemic.

A change in the outcome of any of these or other variables with respect to the development of any of our product candidates could significantly change the 
costs and timing associated with the development of that product candidate. Further, our operating plans may change in the future, and we may need 
additional funds to meet operational needs and capital requirements associated with such operating plans. 

Until such time, if ever, as we can generate substantial product revenues, we expect to finance our cash needs through a combination of equity offerings, 
debt financings, collaborations, strategic alliances, and licensing arrangements. We do not have any committed external source of capital. We have 
historically relied on equity issuances to fund our capital needs and will likely rely on equity issuances in the future. Debt financing, if available, may 
involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital 
expenditures, or declaring dividends. 

 If we raise capital through additional collaborations, strategic alliances, or licensing arrangements with third parties, we may have to relinquish valuable 
rights to our technologies, future revenue streams, research programs, or product candidates, or we may have to grant licenses on terms that may not be 
favorable to us. If we are unable to raise additional capital through equity or debt financings when needed, we may be required to delay, limit, reduce, or 
terminate our product development or, if approved, future commercialization efforts or grant rights to develop and market product candidates that we would 
otherwise prefer to develop and market ourselves. We can give no assurance that we will be able to secure such additional sources of funds to support our 
operations, or, if such funds are available to us, that such additional funding will be sufficient to meet our needs. 

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Contractual obligations

We lease certain assets under noncancelable operating and finance leases, which expire through 2037. The leases relate primarily to office space, laboratory 
and manufacturing space in addition to equipment. Aggregate future minimum commitments under these office and laboratory leases and equipment leases 
are $268.0 million and $2.5 million, respectively, as of December 31, 2022, excluding any related common area maintenance charges or real estate taxes. 

In May 2021, the first success payment measurements under the Harvard License Agreement and Broad License Agreement occurred and success 
payments to Harvard and Broad Institute were calculated to be $15.0 million and $15.0 million, respectively. We elected to make each payment in shares of 
our common stock and issued 174,825 shares of our common stock to each of Harvard and Broad Institute to settle these liabilities in June 2021. The 
remaining success payment obligations are still outstanding as of December 31, 2022. We may additionally owe Harvard and Broad Institute success 
payments of up to an additional $90.0 million each.

We are potentially obligated to pay certain milestone and success fees, non-royalty sublicense income fees, royalty fees, licensing maintenance fees, and 
reimbursement of patent maintenance costs that we may be required to pay under agreements we have entered into with certain institutions to license 
intellectual property. Our agreements to license intellectual property include potential milestone payments that are dependent upon the development of 
products using the intellectual property licensed under the agreements and contingent upon the achievement of development or regulatory approval 
milestones, as well as commercial and success payment milestones. These amounts are contingent upon the occurrence of future events and the timing and 
likelihood of such potential obligations are not known with certainty.

In addition, we agreed to pay Guide’s former stockholders and optionholders up to an additional $100.0 million in technology milestone payments and 
$220.0 million in product milestone payments, payable in our common stock valued using the volume-weighted average price of our common stock over 
the ten-day trading period ending two trading days prior to the date on which the applicable milestone is received. These payments are contingent upon the 
occurrence of future events and the timing and likelihood of such potential obligations are not known with certainty.

Additionally, we enter into contracts in the normal course of business with CROs, CMOs and other vendors to assist in the performance of our research and 
development activities and other services and products for operating purposes. These contracts generally provide for termination on notice, and therefore 
are cancelable contracts.

Critical accounting policies and significant judgments and estimates 

Our management’s discussion and analysis of our financial condition and results of operations is based on our consolidated financial statements, which we 
have prepared in accordance with U.S. generally accepted accounting principles. The preparation of these financial statements requires us to make 
estimates, judgments and assumptions that affect the reported amounts of assets, liabilities, and expenses and the disclosure of contingent assets and 
liabilities in our financial statements. We base our estimates on historical experience, known trends and events and various other factors that we believe are 
reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not 
readily apparent from other sources. We evaluate our estimates and assumptions on an ongoing basis. Our actual results may differ from these estimates 
under different assumptions or conditions. 

While our significant accounting policies are described in more detail in Note 2, Summary of significant accounting policies, to our consolidated financial 
statements in this Annual Report on Form 10-K, we believe that the following accounting policies are those most critical to the judgments and estimates 
used in the preparation of our financial statements.

Revenue recognition

We recognize revenue in accordance with ASC 606. 

At inception, we determine whether contracts are within the scope of ASC 606 or other topics. For contracts that are determined to be within the scope of 
ASC 606, revenue is recognized when a customer obtains control of promised goods or services. The amount of revenue recognized reflects the 
consideration to which we expect to be entitled to receive in exchange for these goods and services. To achieve this core principle, we apply the following 
five steps (i) identify the contract with the customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) 
allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when the performance obligation is satisfied. We 
only apply the five-step model to contracts when we determine that collection of substantially all consideration for goods and services that are transferred is 
probable based on the customer’s intent and ability to pay the promised consideration.

Performance obligations promised in a contract are identified based on the goods and services that will be transferred to the customer that are both capable 
of being distinct and are distinct in the context of the contract. To the extent a contract includes multiple promised goods and services, we apply judgment 
to determine whether promised goods and services are both capable of being distinct and are distinct in the context of the contract. If these criteria are not 
met, the promised goods and services are accounted for as a combined performance obligation.

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The transaction price is determined based on the consideration to which we will be entitled in exchange for transferring goods and services to the customer. 
To the extent the transaction price includes variable consideration, we estimate the amount of variable consideration that should be included in the 
transaction price utilizing either the expected value method or the most likely amount method, depending on the nature of the variable consideration. 
Variable consideration is included in the transaction price if, in management’s judgment, it is probable that a significant future reversal of cumulative 
revenue under the contract will not occur. Any estimates, including the effect of the constraint on variable consideration, are evaluated at each reporting 
period for any changes. Determining the transaction price requires significant judgment and is discussed in further detail for each of our license and 
collaboration agreements in Note 11 to our consolidated financial statements in this Annual Report on Form 10-K.

If the contract contains a single performance obligation, the entire transaction price is allocated to the single performance obligation. Contracts that contain 
multiple performance obligations require an allocation of the transaction price to each performance obligation on a relative standalone selling price basis 
unless the transaction price is variable and meets the criteria to be allocated entirely to a performance obligation or to a distinct service that forms part of a 
single performance obligation. The consideration to be received is allocated among the separate performance obligations based on relative standalone 
selling prices. Determining the standalone selling price requires significant judgment and is discussed in further detail for each of our license and 
collaboration agreements in Note 11.

We satisfy performance obligations either over time or at a point in time. Revenue is recognized over time if either (i) the customer simultaneously receives 
and consumes the benefits provided by the entity’s performance, (ii) the entity’s performance creates or enhances an asset that the customer controls as the 
asset is created or enhanced, or (iii) the entity’s performance does not create an asset with an alternative use to the entity and the entity has an enforceable 
right to payment for performance completed to date. If the entity does not satisfy a performance obligation over time, the related performance obligation is 
satisfied at a point in time by transferring the control of a promised good or service to a customer. 

The timing of when services are performed and the occurrence of external costs associated with the programs under the collaboration agreements could 
impact how revenue is recognized in a certain period. 

Licenses of intellectual property, or IP: If the license to our IP is determined to be distinct from the other performance obligations identified in the 
arrangement, we recognize revenues from consideration allocated to the license when the license is transferred to the customer and the customer can use 
and benefit from the licenses. For licenses that are combined with other promises, we utilize judgment to assess the nature of the combined performance 
obligation to determine whether the combined performance obligation is satisfied over time or at a point in time and, if over time, the appropriate method 
of measuring progress for purposes of recognizing revenue. We evaluate the measure of progress each reporting period and, if necessary, adjust the measure 
of performance and related revenue recognition. Determining the revenue recognition of IP licenses requires significant judgment and is discussed in 
further detail for each of our license and collaboration agreements in Note 10 and 11.

Milestone payments: At the inception of each arrangement that includes development or regulatory milestone payments, we evaluate the probability of 
reaching the milestones and estimate the amount to be included in the transaction price using the most likely amount method. If it is probable that a 
significant revenue reversal would not occur in the future, the associated milestone value is included in the transaction price. Milestone payments that are 
not within our control or the licensee’s, such as regulatory approvals, are not considered probable of being achieved until those approvals are received and 
therefore revenue recognized is constrained as management is unable to assert that a reversal of revenue would not be possible. The transaction price is 
then allocated to each performance obligation on a relative standalone selling price basis, for which we recognize revenue as or when the performance 
obligations under the contract are satisfied. At the end of each subsequent reporting period, we re-evaluate the probability of achievement of such 
development milestones and any related constraint, and if necessary, adjusts its estimate of the overall transaction price. Any such adjustments are recorded 
on a cumulative catch-up basis, which would affect revenues and earnings in the period of adjustment. To date, we have not recognized any milestone 
revenue resulting from any of our agreements.

Commercial Milestone Payments and Royalties: For arrangements that include sales-based royalties, including milestone payments based on levels of 
sales, if the license is deemed to be the predominant item to which the royalties relate, we recognize revenue at the later of (i) when the related sales occur, 
or (ii) when the performance obligation to which some or all of the royalty has been allocated has been satisfied (or partially satisfied). To date, we have 
not recognized any royalty revenue resulting from any of our agreements.

When no performance obligations are required of us, or following the completion of the performance obligation period, such amounts are recognized as 
revenue upon transfer of control of the goods or services to the customer. Generally, all amounts received or due other than sales-based milestones and 
royalties are classified as license and collaboration revenue. Sales-based milestones and royalties will be recognized as royalty revenue at the later of when 
the related sales occur or when the performance obligation to which some or all of the royalty has been allocated has been satisfied (or partially satisfied).

Deferred revenue expected to be recognized within the next twelve months is classified as a current liability. 

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Asset acquisitions

In 2018, we adopted ASU 2017-01, Business Combinations, or ASU 2017-01, which clarified the definition of a business. We measure and recognize asset 
acquisitions that are not deemed to be business combinations based on the cost to acquire the assets, which includes transaction costs, and the consideration 
is allocated to the items acquired based on a relative fair value methodology. Goodwill is not recognized in asset acquisitions. In an asset acquisition, the 
cost allocated to acquire in-process research and development with no alternative future use is charged to research and development expense at the 
acquisition date.

At the time of acquisition, we determine if a transaction should be accounted for as a business combination or acquisition of assets.

Equity method of accounting

In circumstances where we have the ability to exercise significant influence, but not control, over the operating and financial policies of an entity in which 
we  have  an  investment  in  common  stock  or  in-substance  common  stock,  we  utilize  the  equity  method  of  accounting  for  recording  related  investment 
activity. In assessing whether we exercise significant influence, we consider the nature and magnitude of the investment, participating rights we hold, and 
relevant factors such as the presence of a collaborative or other business relationship.

Under the equity method of accounting, our investments are initially recorded at cost on the consolidated balance sheets. Upon recording an equity method 
investment,  we  evaluate  whether  there  are  basis  differences  between  the  carrying  value  and  fair  value  of  our  proportionate  share  of  the  investee’s 
underlying net assets. Typically, we amortize basis differences identified on a straight-line basis over the underlying asset’s or liability's estimated useful 
lives when calculating the attributable earnings or losses, excluding the basis differences attributable to in-process research and development, or IPR&D, 
that has no alternative future use. To the extent a basis difference relates to IPR&D and the investee is not a business as defined in ASC 805, Business 
Combinations, we immediately expense such basis difference related to IPR&D. If we are unable to attribute all of the basis difference to specific assets or 
liabilities  of  the  investee,  the  residual  excess  of  the  cost  of  the  investment  over  the  proportional  fair  value  of  the  investee’s  assets  and  liabilities  is 
considered to be Equity Method Goodwill and is recognized within the equity investment balance, which is tracked separately within our memo accounts. 
We subsequently record in the consolidated statements of operations and comprehensive loss our share of income or loss of the other entity within the loss 
from equity method investment line item. If the share of losses exceeds the carrying value of our investment, we will suspend recognizing additional losses 
and will continue to do so unless we commit to providing additional funding or commit to guarantee investee liabilities.  

We evaluate our equity method investments for impairment whenever events or changes in circumstances indicate that the carrying amounts of such 
investments may be impaired and consider qualitative and quantitative factors including the investee’s financial metrics, product and commercial outlook 
and cash usage. If a decline in the value of an equity method investment is determined to be other than temporary, a loss is recorded in earnings in the 
current period and the investment is written down to fair value.

At December 31, 2022, we accounted for our investment in Orbital under the equity method of accounting and the investment has been written down to 
zero as of December 31, 2022. Refer to Note 8 of our consolidated financial statements for further details. 

Contingent consideration liabilities

We may be required to make milestone payments to the former stockholders and optionholders of Guide in the form of our common stock based on the 
achievement of certain product and technology milestones. The payments are accounted for under ASC 480, Distinguishing Liabilities from Equity. These 
contingent consideration liabilities are carried at fair value which was estimated by applying a probability-based model, which utilized inputs primarily 
based upon the achievement and related timing of certain product and technology milestones that were unobservable in the market. The estimated fair value 
of contingent consideration liabilities, initially measured and recorded on the acquisition date, are considered to be a Level 3 measurement and are 
reviewed quarterly, or whenever events or circumstances occur that indicate a change in fair value. The contingent consideration liabilities are recorded at 
fair value at the end of each reporting period with changes in estimated fair values recorded in other income (expense) in the consolidated statements of 
operations and other comprehensive loss.

The estimated fair value is determined based on probability adjusted discounted cash flow models that include significant estimates and assumptions 
pertaining to technology and product development. Significant changes in any of the probabilities of success would result in a significantly higher or lower 
fair value measurement. Significant changes in the probabilities as to the periods in which milestones will be achieved would result in a significantly lower 
or higher fair value measurement.

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Fair value measurements – Success payments

We are required to make success payments to Harvard and Broad Institute based on increases in the per share fair market value of our Series A-1 Preferred 
Stock and Series A-2 Preferred Stock or, subsequent to our IPO, our common stock. Any amounts due may be settled in cash or shares of our common 
stock, at our discretion. The success payments are accounted for under Accounting Standards Codification 815, Derivatives and Hedging and were initially 
recorded at fair value with a corresponding charge to research and development expense. The liabilities are marked to market at each balance sheet date 
with all changes in value recognized in interest and other income (expense) in the consolidated statement of operations and other comprehensive loss. We 
will continue to adjust the liability for changes in fair value until the earlier of the achievement or expiration of the success payment obligation. To 
determine the estimated fair value of the success payments, we used a Monte Carlo simulation model, which models the value of the liability based on 
several key variables, including probability of event occurrence, timing of event occurrence, as well as the price per share at the time of success payment. A 
significant change in our stock price or volatility could have a significant impact on the value of the liability.

Accrued research and development costs

As part of the process of preparing our financial statements, we are required to estimate our accrued expenses. This process involves reviewing open 
contracts and purchase orders, communicating with our personnel to identify services that have been performed on our behalf and estimating the level of 
service performed and the associated cost incurred for the service when we have not yet been invoiced or otherwise notified of the actual cost. The majority 
of our service providers invoice us monthly in arrears for services performed or when contractual milestones are met. We make estimates of our accrued 
expenses as of each balance sheet date in our financial statements based on facts and circumstances known to us at that time. Examples of estimated 
accrued research and development expenses include fees paid to vendors in connection with preclinical development activities and vendors related to 
development, manufacturing and distribution of product candidate materials. 

We base our expenses related to preclinical studies on our estimates of the services received and efforts expended pursuant to contracts with multiple 
vendors that conduct and manage preclinical studies on our behalf. The financial terms of these agreements are subject to negotiation, vary from contract to 
contract and may result in uneven payment flows. There may be instances in which payments made to our vendors will exceed the level of services 
provided and result in a prepayment of the expense. In accruing service fees, we estimate the time period over which services will be performed and the 
level of effort to be expended in each period and adjust accordingly.

Stock-based compensation

We measure stock options and other stock-based awards granted to our employees, directors, consultants or founders based upon their fair value on the date 
of the grant and recognize stock-based compensation expense over the requisite service period, which is generally the vesting period of the respective 
award. We recognize forfeitures as they occur.

The majority of our stock-based compensation awards are subject to service-based vesting conditions. We apply the straight-line method of expense 
recognition to all awards with service-based vesting. We also have performance-based awards, where stock-based compensation expense is recognized over 
the service period using the accelerated attribution method to the extent achievement of the of performance condition is probable.

We estimate the fair value of each stock option grant on the date of grant using the Black-Scholes option-pricing model, which uses inputs such as the fair 
value of our common stock, assumptions we make for the volatility of our common stock, the expected term of our stock options, the risk-free interest rate 
for a period that approximates the expected term of our stock options and our expected dividend yield. The fair value of our common stock is used to 
determine the fair value of restricted stock awards.

Prior to our IPO in February 2020, there was no public market for our common stock. As a result, prior to our IPO, the estimated fair value of our common 
stock was determined by our board of directors as of the date of each option grant, with input from management, considering our most recently available 
third-party valuations of common stock and our board of directors’ assessment of additional objective and subjective factors that it believed were relevant 
and which may have changed from the date of the most recent valuation through the date of the grant. Following our IPO, the fair value of our common 
stock is determined based on the quoted market price of our common stock.

Leases 

On January 1, 2019, we adopted ASU No. 2016-02, Leases (Topic 842), or ASC 842, which requires the recognition of the right-of-use assets and related 
operating and finance lease liabilities on the balance sheet.

For contracts entered into on or after the effective date, at the inception of a contract, we assess whether the contract is, or contains, a lease. The assessment 
is based on: (1) whether the contract involves the use of a distinct identified asset, (2) whether we obtain the right to substantially all the economic benefit 
from the use of the asset throughout the period, and (3) whether we have the right to direct the use of the asset. At inception of a lease, we allocate the 
consideration in the contract to each lease component based on its relative stand-alone price to determine the lease payments. 

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Leases are classified as either finance leases or operating leases. A lease is classified as a finance lease if any one of the following criteria are met: the lease 
transfers ownership of the asset by the end of the lease term, the lease contains an option to purchase the asset that is reasonably certain to be exercised, the 
lease term is for a major part of the remaining useful life of the asset or the present value of the lease payments equals or exceeds substantially all of the fair 
value of the asset. A lease is classified as an operating lease if it does not meet any of these criteria. 

For all leases at the lease commencement date, a right-of-use asset and a lease liability are recognized. The right-of-use asset represents the right to use the 
leased asset for the lease term. The lease liability represents the present value of the lease payments under the lease. 

The right-of-use asset is initially measured at cost, which primarily comprises the initial amount of the lease liability, plus any initial direct costs incurred if 
any, less any lease incentives received. All right-of-use assets are reviewed for impairment. The lease liability is initially measured at the present value of 
the lease payments, discounted using the interest rate implicit in the lease or, if that rate cannot be readily determined, our secured incremental borrowing 
rate for the same term as the underlying lease. For real estate leases and other operating leases, we use our secured incremental borrowing rate. For finance 
leases, we use the rate implicit in the lease or our secured incremental borrowing rate if the implicit lease rate cannot be determined. 

Lease payments included in the measurement of the lease liability comprise the following: the fixed noncancelable lease payments, payments for optional 
renewal periods where it is reasonably certain the renewal period will be exercised, and payments for early termination options unless it is reasonably 
certain the lease will not be terminated early. 

Lease cost for operating leases consists of the lease payments plus any initial direct costs, primarily brokerage commissions, and is recognized on a 
straight-line basis over the lease term. Included in lease cost are any variable lease payments incurred in the period that are not included in the initial lease 
liability and lease payments incurred in the period for any leases with an initial term of 12 months or less. Lease cost for finance leases consists of the 
amortization of the right-of-use asset on a straight-line basis over the lease term and interest expense determined on an amortized cost basis. The lease 
payments are allocated between a reduction of the lease liability and interest expense. 

Leasehold improvements are not unique and are retained by the lessor at the end of the lease. However, in the case of a space designed to be suitable for our 
specific real estate needs and if we are responsible for cost overruns, we are the accounting owner of the leasehold improvements. 

We made an accounting policy election to not recognize leases with an initial term of 12 months or less within our consolidated balance sheets and to 
recognize those lease payments on a straight-line basis in our consolidated statements of income over the lease term. 

Item 7A. Quantitative and Qualitative Disclosures About Market Risk. 

We are exposed to market risk related to changes in interest rates. As of December 31, 2022, we had cash, cash equivalents and marketable securities of 
$1.1 billion, which consisted of cash, money market funds, commercial paper, corporate notes and corporate equity securities. Our primary exposure to 
market risk is interest rate sensitivity, which is affected by changes in the general level of U.S. interest rates, particularly because our investments are in 
short-term marketable securities. Due to the short-term duration of our investment portfolio and the low risk profile of our investments, we believe an 
immediate 10% change in interest rates would not have a material effect on the fair market value of our investment portfolio. We have the ability to hold 
our investments until maturity, and therefore, we would not expect our operating results or cash flows to be affected to any significant degree by the effect 
of a change in market interest rates on our investment portfolio. 

We are not currently exposed to significant market risk related to changes in foreign currency exchange rates; however, we do contract with vendors that 
are located outside of the United States and may be subject to fluctuations in foreign currency rates. We may enter into additional contracts with vendors 
located outside of the United States in the future, which may increase our foreign currency exchange risk.

Inflation generally affects us by increasing our cost of labor and research, manufacturing and development costs. We believe that inflation has not had a 
material effect on our financial statements included elsewhere in this Annual Report on Form 10-K. However, our operations may be adversely affected by 
inflation in the future.

Item 8. Financial Statements and Supplementary Data. 

The financial statements required to be filed pursuant to this Item 8 are appended to this Annual Report on Form 10-K. An index of those financial 
statements is found in Item 15, Exhibits and Financial Statement Schedules, of this Annual Report on Form 10-K. 

Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure. 

None. 

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Item 9A. Controls and Procedures. 

Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our principal executive officer and our principal financial officer, evaluated, as of December 31, 2022, the 
effectiveness of our disclosure controls and procedures as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act. The term “disclosure controls 
and procedures,” as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, means controls and other procedures of a company that are 
designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, 
processed, summarized and reported, within the time periods specified in the SEC’s rules and forms. Disclosure controls and procedures include, without 
limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under 
the Exchange Act is accumulated and communicated to the company’s management, including its principal executive and principal financial officers, or 
persons performing similar functions, as appropriate to allow timely decisions regarding required disclosure. Management recognizes that any controls and 
procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives and management necessarily 
applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

Based on that evaluation of our disclosure controls and procedures as of December 31, 2022, our principal executive officer and principal financial officer 
concluded that our disclosure controls and procedures as of such date were effective at the reasonable assurance level.

Management’s Report on Internal Controls over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting. Internal control over financial reporting 
is defined in Rules 13a-15(f) and 15d-15(f) promulgated under the Exchange Act as a process designed by, or under the supervision of, our principal 
executive and principal financial officers, or persons performing similar functions, and effected by our board of directors, management and other personnel, 
to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in 
accordance with generally accepted accounting principles and includes policies and procedures that:

•

•

•

pertain to the maintenance of records that in reasonable detail accurately and fairly reflect the transactions and dispositions of our assets;

provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with 
generally accepted accounting principles, and that our receipts and expenditures are being made only in accordance with authorizations of our 
management and directors; and

provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of our assets that could 
have a material effect on the consolidated financial statements. 

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Projections of any evaluation of 
effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of 
compliance with the policies or procedures may deteriorate. We continue to review our internal control over financial reporting and may from time to time 
make changes aimed at enhancing their effectiveness and to ensure that our systems evolve with our business.

Under the supervision and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer, we conducted an 
evaluation of the effectiveness of our internal control over financial reporting based on the framework in “Internal Control — Integrated Framework 
(2013)” issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this assessment, our senior management has 
concluded that the internal control over financial reporting was effective as of December 31, 2022.

Our independent registered public accounting firm, Deloitte & Touche LLP, issued an attestation report on our internal control over financial reporting. See 
below.

Changes in Internal Control over Financial Reporting

We continuously seek to improve the efficiency and effectiveness of our internal controls. This results in refinements to processes throughout our company. 
There were no changes in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the 
year ended December 31, 2022 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

133

 
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the stockholders and the Board of Directors of Beam Therapeutics Inc. 

Opinion on Internal Control over Financial Reporting

We have audited the internal control over financial reporting of Beam Therapeutics Inc. and subsidiaries (the “Company”) as of December 31, 2022, based 
on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway 
Commission (COSO). In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 
31, 2022, based on criteria established in Internal Control — Integrated Framework (2013) issued by COSO.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated 
financial statements as of and for the year ended December 31, 2022, of the Company and our report dated February 28, 2023, expressed an unqualified 
opinion on those financial statements.

Basis for Opinion

The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of 
internal control over financial reporting, included in the accompanying Management’s Report on Internal Control over Financial Reporting. Our 
responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm 
registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the 
applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable 
assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an 
understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating 
effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We 
believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting 
and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control 
over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly 
reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit 
preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are 
being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding 
prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial 
statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of 
effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of 
compliance with the policies or procedures may deteriorate.

/s/ Deloitte & Touche LLP

Boston, Massachusetts

February 28, 2023

134

 
Item 9B. Other Information. 

On February 27, 2023, our board of directors amended and restated our Amended and Restated By-Laws, or, as amended and restated, the Second 
Amended and Restated By-Laws, effective immediately. The Second Amended and Restated By-Laws include the following amendments:

•

Section 1 (Stockholders) was amended to, among other things:

o

o

o

o

clarify the procedures governing adjournment of stockholder meetings, consistent with recent amendments to Section 222 of the 
Delaware General Corporation Law, or the DGCL;

eliminate the former requirement regarding availability of the voting list during stockholder meetings, consistent with recent 
amendments to Section 219 of the DGCL;

amend certain procedures governing notice of nominations for director brought by stockholders, including: (i) setting forth the 
circumstances under which stockholders may nominate persons for director at special stockholder meetings, (ii) clarifying the 
requirements for the timing and content of notices and accompanying materials, and (iii) updating certain provisions to reflect the 
requirements of Rule 14a-19 of the Securities Exchange Act of 1934, as amended, relating to universal proxy cards; and

amend certain procedures governing notice of business to be brought before an annual meeting by stockholders, including with respect 
to the requirements for the timing and content of notices.

•

Section 2 (Board of Directors) was amended to address changes to the normal rules regarding notice and quorum requirements in the event of 
an emergency, consistent with recent amendments to Section 110 of the DGCL.

The Second Amended and Restated By-Laws also include certain technical, conforming and clarifying changes. The foregoing description of the Second 
and Amended Restated By-Laws is qualified in its entirety by reference to the full text of the Second Amended and Restated By-Laws, which is attached 
hereto as Exhibit 3.2 and incorporated herein by reference.

Item 9C. Disclosure Regarding Foreign Jurisdictions That Prevent Inspections.

None.

135

 
Item 10. Directors, Executive Officers and Corporate Governance. 

PART III 

The information required by this Item 10 will be included in our definitive proxy statement to be filed with the Securities and Exchange Commission, or 
SEC, with respect to our 2023 Annual Meeting of Stockholders and is incorporated herein by reference.

We have adopted a written code of business conduct and ethics, or Code, that applies to all of our directors, officers and employees, including our principal 
executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions. A current copy of the Code 
is available on the investor section of our website at investors.beamtx.com. We intend to disclose on our website any amendments to, or waivers from, our 
Code that are required to be disclosed pursuant to SEC rules.

Item 11. Executive Compensation. 

The information required by this Item 11 will be included in the section captioned “Executive Compensation" and "Director Compensation” in our 
definitive proxy statement to be filed with the SEC with respect to our 2023 Annual Meeting of Stockholders and is incorporated herein by reference.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters. 

The information required by this Item 12 will be included in the sections captioned “Security Ownership of Certain Beneficial Owners and Management” 
and “Securities Authorized for Issuance under Equity Compensation Plans” in our definitive proxy statement to be filed with the SEC with respect to our 
2023 Annual Meeting of Stockholders and is incorporated herein by reference.

Item 13. Certain Relationships and Related Transactions, and Director Independence. 

The information required by this Item 13 will be included in the sections captioned “Certain Relationship and Related Person Transactions” and “Director 
Independence” in our definitive proxy statement to be filed with the SEC with respect to our 2023 Annual Meeting of Stockholders and is incorporated 
herein by reference.

Item 14. Principal Accounting Fees and Services. 

The information required by this Item 14 will be included in the sections captioned “Principal Accountant Fees and Services” and “Audit Committee Pre-
Approval Policy and Procedures” in our definitive proxy statement to be filed with the SEC with respect to our 2023 Annual Meeting of Stockholders and 
is incorporated herein by reference.

136

 
Item 15. Exhibits, Financial Statement Schedules. 

1. Financial Statements 

PART IV 

For a list of the financial statements included herein, see Index to the Consolidated Financial Statements on page F-1 of this Annual Report on Form 10-K, 
incorporated into this Item by reference. 

2. Financial Statement Schedules 

Financial statement schedules have been omitted because they are either not required or not applicable or the information is included in the consolidated 
financial statements or the notes thereto. 

3. Exhibits 

Exhibit
Number

2.1#

3.1

3.2

4.1

4.2

4.3

4.4

10.1

10.2

10.3

10.4#

10.5#

10.6#

10.7#

Description of Exhibit

Form

File
Number

Date of
Filing

Exhibit
Number

Filed
Herewith

 Agreement and Plan of Merger, dated February 22, 2021, among Beam 
Therapeutics Inc., Galileo Merger Sub I, Inc., Galileo Merger Sub II, LLC, 
Guide Therapeutics, Inc. (“Guide”), Shareholder Representative Services 
LLC, and the Guide Holders Signatory thereto

10-K

001-39208

03/15/2021

2.1

 Fourth Amended Certificate of Incorporation of Beam Therapeutics Inc.

8-K

001-39208

02/11/2020

3.1

 Second Amended and Restated By-laws of Beam Therapeutics Inc.

X

 Specimen stock certificate evidencing shares of common stock

 Amended and Restated Investors’ Rights Agreement, among Beam 
Therapeutics Inc. and the investors party thereto, dated November 8, 2018

S-1

S-1

333-233985

09/27/2019

333-233985

09/27/2019

4.1

4.2

 Form of Purchase Agreement, dated as of January 16, 2021, among Beam 
Therapeutics Inc. and each purchaser party thereto

8-K

001-39208

01/19/2021

10.1

 Description of Registered Securities

 Lease, between UP 26 Landsdowne, LLC and Beam Therapeutics Inc., 
dated February 21, 2018

S-3

S-1

333-254946

4/01/2021

333-233985

09/27/2019

4.11

10.1

 Indenture of Lease, between Massachusetts Institute of Technology and 
Beam Therapeutics Inc., dated April 24, 2019

S-1

333-233985

09/27/2019

10.2

 Sales Agreement, dated April 1, 2021, by and between Beam Therapeutics 
Inc. and Jefferies LLC.

8-K

001-39208

04/01/2021

1.1

 License Agreement, between the President and Fellows of Harvard College 
and Beam Therapeutics Inc., dated June 27, 2017

S-1

333-233985

09/27/2019

10.4

 Amendment No. 1 to License Agreement, between the President and 
Fellows of Harvard College and Beam Therapeutics Inc., dated December 
12, 2017

 Amendment No. 2 to License Agreement, between the President and 
Fellows of Harvard College and Beam Therapeutics Inc., dated March 27, 
2020

10-K

001-39208

03/15/2021

10.5

10-K

001-39208

03/15/21

10.6

 License Agreement, between The Broad Institute, Inc. and Blink 
Therapeutics Inc., dated May 9, 2018

S-1

333-233985

09/27/2019

10.5

137

 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
10.8#

10.9#

10.10#

10.11

 First Amendment to License Agreement, between The Broad Institute, Inc. 
and Blink Therapeutics Inc., dated September 4, 2018

10-K

001-39208

03/15/2021

10.8

 License Agreement, between Editas Medicine, Inc. and Beam Therapeutics 
Inc., dated May 9, 2018

S-1

333-233985

09/27/2019

10.6

 Letter Agreement, between Beam Therapeutics Inc., The Broad Institute, 
Inc., the President and Fellows of Harvard College, and Editas Medicine, 
Inc., dated September 26, 2018

 Letter Agreement, between the President and Fellows of Harvard College, 
The Broad Institute, Inc., and Beam Therapeutics Inc., dated January 7, 
2021.

10-K

001-39208

03/15/2021

10.10

10-K

001-39208

03/15/22021

10.11

10.12#

 License Agreement, between Bio Palette Co., Ltd. and Beam Therapeutics 
Inc., dated March 27, 2019

S-1

333-233985

09/27/2019

10.7

10.8

10.9

10.13+

 Beam Therapeutics Inc. 2017 Stock Option and Grant Plan

S-1/A

333-233985

01/27/2020

10.14+

10.15+

10.16+

10.17+

10.18+

10.19+

10.20+

 Form of Restricted Stock Agreement under the Beam Therapeutics Inc. 
2017 Stock Option and Grant Plan

S-1

333-233985

09/27/2019

 Form of Incentive Stock Option Grant Notice under the Beam Therapeutics 
Inc. 2017 Stock Option and Grant Plan

S-1

333-233985

09/27/2019

10.10

 Form of Non-Qualified Stock Option Grant Notice under the Beam 
Therapeutics Inc. 2017 Stock Option and Grant Plan

S-1

333-233985

09/27/2019

10.11

 Form of Indemnification Agreement between Beam Therapeutics Inc. and 
its directors and officers

S-1

333-233985

09/27/2019

10.12

 Amended and Restated Letter Agreement between Beam Therapeutics Inc. 
and John Evans, dated June 9, 2021

10-Q

333-233985

08/10/2021

10.1

 Amended and Restated Employment Agreement between Beam 
Therapeutics Inc. and Giuseppe Ciaramella, dated January 24, 2020

S-1/A

333-233985

01/27/2020

10.14

 Letter Agreement between Beam Therapeutics Inc. and Terry-Ann Burrell, 
dated January 24, 2020

S-1/A

333-233985

01/27/2020

10.15

10.21+

 Beam Therapeutics Inc. 2019 Equity Incentive Plan

S-1/A

333-233985

01/27/2020

10.16

10.22+

10.23+

10.24+

10.25+

10.26+

10.27+

 Form of Incentive Stock Option Agreement under the Beam Therapeutics 
Inc. 2019 Equity Incentive Plan

S-1/A

333-233985

01/27/2020

10.17

 Form of Non-Statutory Stock Option Agreement under the Beam 
Therapeutics Inc. 2019 Equity Incentive Plan

S-1/A

333-233985

01/27/2020

10.18

 Form of Non-Statutory Stock Option Agreement (Non-Employee 
Directors) under the Beam Therapeutics Inc. 2019 Equity Incentive Plan

S-1/A

333-233985

01/27/2020

10.19

 Form of Restricted Stock Unit Award Agreement under the Beam 
Therapeutics Inc. 2019 Equity Incentive Plan

10-K

001-39208

3/15/2021

10.25

 Form of Restricted Stock Award Agreement under the Beam Therapeutics 
Inc. 2019 Equity Incentive Plan

10-K

001-39208

03/15/2021

10.26

 Amended and Restated Beam Therapeutics Inc. 2019 Employee Stock 
Purchase Plan

10-K

001-39208

2/28/2022

21.1

10.28+

 Beam Therapeutics Inc. 2019 Cash Incentive Plan

S-1/A

333-233985

01/27/2020

10.21

10.29+

 Amended and Restated Beam Therapeutics Inc. Non-Employee Director 
Compensation Policy, dated March 31, 2022

10-Q

001-39208

05/09/2022

10.1

138

 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
10.30

10.31

10.32

10.33

10.34

10.35

21.1

23.1

31.1

31.2

32.1*

32.2*

 Lease Agreement between Beam Therapeutics Inc. and ARE-NC Region 
No. 14, LLC

10-Q

001-39208

08/12/2020

10.1

 Amendment No. 1 to Indenture of Lease, between Massachusetts Institute 
of Technology and Beam Therapeutics Inc., dated April 14, 2020

10-K

001-39208

02/28/2022

21.1

 Amendment No. 2 to Indenture of Lease, between Massachusetts Institute 
of Technology and Beam Therapeutics Inc., dated November 17, 2020

10-K

001-39208

02/28/2022

21.1

 Amendment No. 3 to Indenture of Lease, between Massachusetts Institute 
of Technology and Beam Therapeutics Inc., dated August 24, 2021

10-K

001-39208

02/28/2022

21.1

 Amendment No. 1 to Sales Agreement, dated July 7, 2021, by and between 
Beam Therapeutics Inc. and Jefferies LLC
 Amendment No. 4 to Indenture of Lease, between Massachusetts Institute 
of Technology and Beam Therapeutics Inc., dated December 7, 2022

8-K

001-39208

07/07/2021

1.1

 List of Subsidiaries of Beam Therapeutics Inc.

10-K

001-39208

2/28/2022

21.1

 Consent of Deloitte & Touche LLP

 Certification of Principal Executive Officer Pursuant to Rules 13a-14(a) 
and 15d-14(a) under the Securities Exchange Act of 1934, as Adopted 
Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

 Certification of Principal Financial Officer Pursuant to Rules 13a-14(a) and 
15d-14(a) under the Securities Exchange Act of 1934, as Adopted Pursuant 
to Section 302 of the Sarbanes-Oxley Act of 2002.

 Certification of Principal Executive Officer Pursuant to 18 U.S.C. Section 
1350 as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 
2002.

 Certification of Principal Financial Officer Pursuant to 18 U.S.C. Section 
1350 as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 
2002.

101.INS

 Inline XBRL Instance Document - the instance document does not appear 
in the Interactive Data File because its XBRL tags are embedded within the 
Inline XBRL document

101.SCH

 Inline XBRL Taxonomy Extension Schema Document

101.CAL

 Inline XBRL Taxonomy Extension Calculation Linkbase Document

101.DEF

 Inline XBRL Taxonomy Extension Definition Linkbase Document

101.LAB

 Inline XBRL Taxonomy Extension Label Linkbase Document

101.PRE

 Inline XBRL Taxonomy Extension Presentation Linkbase Document

104

 Cover Page Interactive Data File (embedded within the Inline XBRL document)

X

X

X

X

X

X

X

X

X

X

X

X

X

# Portions of this exhibit have been omitted because the Registrant has determined they are not material and are they type that the Registrant treats as 
private or confidential.
+ Indicates management contract or compensatory plan.

139

 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
* This certification will not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or 
otherwise subject to the liability of that section. Such certification will not be deemed to be incorporated by reference into any filing under the Securities 
Act of 1933, as amended, or the Exchange Act, except to the extent specifically incorporated by reference into such filing.

Item 16. Form 10-K Summary 

None.

140

 
  
SIGNATURES 

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this Report to be 
signed on its behalf by the undersigned, thereunto duly authorized. 

  BEAM THERAPEUTICS INC.

Date: February 28, 2023

  By:

/s/ John Evans
John Evans
Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, this Report has been signed below by the following persons on behalf of 
the Registrant in the capacities and on the dates indicated. 

Title 

Date

Name

/s/ John Evans
John Evans

 Chief Executive Officer and Director

  (Principal Executive Officer)

/s/ Terry-Ann Burrell
Terry-Ann Burrell

  Chief Financial Officer and Treasurer
  (Principal Financial Officer and Principal Accounting Officer)

/s/ Kristina Burow
Kristina Burow

/s/ Graham Cooper
Graham Cooper

/s/ Mark Fishman
Mark Fishman, M.D.

/s/ Carole Ho
Carole Ho, M.D.

/s/ John Maraganore
John Maraganore, Ph.D.

/s/ Kathleen Walsh
Kathleen Walsh

  Director

  Director

  Director

  Director

  Director

  Director

141

February 28, 2023

February 28, 2023

February 28, 2023

February 28, 2023

February 28, 2023

February 28, 2023

February 28, 2023

February 28, 2023

 
 
 
 
   
 
 
   
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
INDEX TO CONSOLIDATED FINANCIAL STATEMENTS 

Report of independent registered public accounting firm (PCAOB ID No. 34)
Consolidated balance sheets
Consolidated statements of operations and other comprehensive loss
Consolidated statements of redeemable convertible preferred stock and stockholders’ equity (deficit)
Consolidated statements of cash flows
Notes to consolidated financial statements

F-1

F-2
F-5
F-6
F-7
F-8
F-10

 
  
 
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the stockholders and the Board of Directors of Beam Therapeutics Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Beam Therapeutics Inc. and subsidiaries (the "Company") as of December 31, 2022 and 
2021, the related consolidated statements of operations and other comprehensive loss, redeemable convertible preferred stock and stockholders' equity 
(deficit), and cash flows, for each of the three years in the period ended December 31, 2022, and the related notes (collectively referred to as the "financial 
statements"). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2022 
and 2021, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2022, in conformity with 
accounting principles generally accepted in the United States of America.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's 
internal control over financial reporting as of December 31, 2022, based on criteria established in Internal Control — Integrated Framework (2013) issued 
by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated February 28, 2023, expressed an unqualified opinion on 
the Company's internal control over financial reporting.

Basis for Opinion

These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company's financial 
statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the 
Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the 
PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable 
assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing 
procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to 
those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits 
also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the 
financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matters

The critical audit matters communicated below are matters arising from the current-period audit of the financial statements that were communicated or 
required to be communicated to the audit committee and that (1) relate to accounts or disclosures that are material to the financial statements and (2) 
involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion 
on the financial statements, taken as a whole, and we are not, by communicating the critical audit matters below, providing separate opinions on the critical 
audit matters or on the accounts or disclosures to which they relate.

F-2

 
License and Collaboration Revenue – Pfizer Agreement – Refer to Notes 2 and 11 to the financial statements

Critical Audit Matter Description

In December 2021, the Company entered into a research collaboration agreement, or the Pfizer Agreement, with Pfizer Inc., or Pfizer. Under the terms of 
the Pfizer Agreement, the Company is conducting all research activities through the selection of development candidates for three base editing programs. 
The Company commenced development activities in 2022. Of the total transaction price of $300.0 million, the Company recognized $48.2 million of 
revenue in 2022, and as of December 31, 2022, there was $96.4 million and $155.4 million of current and long-term deferred revenue, respectively, related 
to the Pfizer Agreement. 

The Company is accounting for the Pfizer Agreement under ASC 606, Revenue from Contracts with Customers, or ASC 606. In their accounting analysis, 
the Company identified three combined performance obligations, one for each research program, consisting of the exclusive development and 
commercialization rights, the research and development services, and licenses. The Company concluded that an input method based on the actual costs 
incurred as a percentage of total budgeted costs towards satisfying each performance obligation provides the most faithful depiction of the Company’s 
performance in transferring control of the goods and services promised to Pfizer and represents the Company’s best estimate of the period of the 
obligations, with the standalone selling price of each performance obligation determined using the total estimated costs for the performance obligations. 

Auditing the Company’s accounting for the Pfizer Agreement required an increased extent of effort and a high degree of auditor judgment, including the 
involvement of specialists, due to the complex and judgmental nature of evaluating the performance obligations included within the Pfizer Agreement and 
the estimated costs to satisfy each performance obligation.

How the Critical Audit Matter Was Addressed in the Audit
Our audit procedures related to the Pfizer Agreement performance obligation conclusions and research cost estimates included the following, among others: 

•

•

•

•

We tested the effectiveness of controls over management’s review of the accounting conclusions reached under ASC 606 regarding the Pfizer 
Agreement, including the identification of performance obligations and the determination of the appropriate method to measure progress 
towards the completion of performance obligations.

We tested the effectiveness of controls over management’s review of the initial cost estimate by research program for the Pfizer Agreement, 
including significant assumptions underlying internal and external cost estimates.

We obtained and read the contracts and other documents related to the Pfizer Agreement.

We read the Company’s accounting analysis for conclusions reached related to the Pfizer Agreement under ASC 606, performing procedures 
including the following:

o

o

With the assistance of professionals in our firm having expertise in revenue accounting, we evaluated the Company’s conclusions 
regarding the identification of performance obligations and inspected relevant authoritative guidance.

We held corroborative inquiries with individuals involved in the negotiation of the agreement and those responsible for overseeing the 
agreement to confirm our understanding of the performance obligations as well as the Company’s assertions regarding whether those 
performance obligations are distinct or combined.

•

We inspected the Company’s cost estimates by research program, performing procedures including the following:

o

o

o

We held corroborative inquiries with individuals involved in overseeing the research to be performed to obtain an understanding of the 
Company’s responsibilities and research plan for each research program.

We held corroborative inquiries with individuals involved in the forecasting of the cost estimates to obtain an understanding of the 
costs associated with the Company’s responsibilities and research plan for each research program.

We inspected evidence supporting internal and external cost estimates.

F-3

 
Equity Method Investment – Orbital Agreement – Refer to Notes 2, 8, and 11 to the financial statements

Critical Audit Matter Description 

In September 2022, the Company entered into a License and Research Collaboration Agreement, or the Orbital Agreement, with Orbital Therapeutics, Inc., 
or Orbital. In exchange for the Company’s contributions under the Orbital Agreement the Company received 75.0 million shares of Orbital common stock 
with a fair value of $25.5 million. The Company’s ownership represented a 31.5% fully diluted equity interest and a 97.0% interest in the outstanding 
common stock of Orbital at the time of closing. Additionally, certain members of the Company’s executive team are providing interim management 
services to Orbital under separate agreements between Orbital and the executives, and certain members of the Company’s executive team and board of 
directors are serving on the Orbital board of directors.

The Company concluded that they have significant influence over, but do not control, Orbital. As a result, the Company has applied the equity method of 
accounting to their investment in Orbital, with the value of the Company’s investment being $25.5 million at inception. As a result of basis differences 
identified, the fair value of the Company’s investment in Orbital was reduced to $0.

The determination as to how the Company should treat its investment in Orbital, including whether the Company should consolidate Orbital or apply the 
equity method of accounting, involved especially challenging, subjective, and complex management judgments. Therefore, auditing these significant 
management judgments involved a high degree of auditor judgment and subjectivity, including the involvement of specialists.

How the Critical Audit Matter Was Addressed in the Audit

Our audit procedures related to the Orbital Agreement accounting conclusions included the following, among others: 

•

•
•

We tested the effectiveness of management’s control over the review of the accounting conclusions reached under the relevant authoritative 
guidance regarding the Company’s investment in Orbital.
We obtained and read the contracts and other documents related to the Orbital Agreement.
We read the Company’s accounting analysis for conclusions reached related to the Company’s investment in Orbital, performing procedures 
including the following:
o

With the assistance of professionals in our firm having expertise in equity method and consolidation accounting, we evaluated the 
significant judgments associated with indicators of the Company’s ability to influence Orbital to determine that the Company has the 
ability to exercise significant influence over, but not control, Orbital.
We inspected relevant authoritative guidance.
We held corroborative inquiries with individuals involved in the negotiation of the agreement to confirm our understanding of the 
agreement and other underlying documents.

o
o

/s/ Deloitte & Touche LLP 

Boston, Massachusetts 

February 28, 2023

We have served as the Company’s auditor since 2018.

F-4

 
 
 
 
Beam Therapeutics Inc. 
Consolidated Balance Sheets 
(in thousands, except share and per share amounts) 

Assets
Current assets:

Cash and cash equivalents
Marketable securities
Collaboration receivable
Prepaid expenses and other current assets

Total current assets
Property and equipment, net
Restricted cash
Operating lease right-of-use assets
Other assets

Total assets

Liabilities and stockholders’ equity
Current liabilities:

Accounts payable
Accrued expenses and other current liabilities
Accrued sub-license fees
Derivative liabilities
Current portion of deferred revenue
Current portion of lease liability
Current portion of equipment financing liability

Total current liabilities

Long-term lease liability
Long-term equipment financing liability
Contingent consideration liabilities
Long-term portion of deferred revenue
Other liabilities

Total liabilities

  $

  $

  $

December 31,

2022

2021

232,767     $
845,367    
—    
14,762    
1,092,896    
115,620    
12,754    
118,513    
1,931    
1,341,714     $

9,029     $
48,059    
—    
18,300    
135,974    
10,380    
1,853    
223,595    
168,625    
1,154    
12,463    
202,179    
224    
608,240    

559,994  
405,653  
300,000  
7,360  
1,273,007  
84,258  
12,746  
102,718  
1,724  
1,474,453  

7,474  
28,921  
38,743  
42,200  
86,270  
7,540  
2,287  
213,435  
134,810  
3,007  
31,367  
262,303  
2,793  
647,715  

Commitments and contingencies (See Note 7, Leases, Note 10, License agreements and Note 11, 
Collaboration and license agreements)
Stockholders’ equity:

Preferred stock, $0.01 par value; 25,000,000 shares authorized, and no shares issued or outstanding at 
December 31, 2022 and December 31, 2021, respectively
Common stock, $0.01 par value; 250,000,000 shares authorized, 71,277,339 and 68,581,251 issued, 
and 71,277,339 and 68,389,425 outstanding at December 31, 2022 and December 31, 2021, 
respectively
Additional paid-in capital
Accumulated other comprehensive (loss) income
Accumulated deficit

Total stockholders’ equity
Total liabilities and stockholders’ equity

—    

—  

712    
1,792,554    
(2,430 )  
(1,057,362 )  
733,474    
1,341,714     $

684  
1,594,378  
(50 )
(768,274 )
826,738  
1,474,453  

  $

The accompanying notes are an integral part of these consolidated financial statements. 
F-5

 
 
 
 
 
 
 
 
 
 
 
     
   
 
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
   
 
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
   
 
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Beam Therapeutics Inc. 
Consolidated Statements of Operations and Other Comprehensive Loss 
(in thousands, except share and per share amounts) 

License and collaboration revenue
Operating expenses:

Research and development
General and administrative
Total operating expenses

Loss from operations
Other income (expense):

Change in fair value of derivative liabilities
Change in fair value of non-controlling equity investments
Change in fair value of contingent consideration liabilities
Interest and other income (expense), net

Total other income (expense)

Net loss before income taxes
Provision for income taxes
Loss from equity method investment

Net loss

Unrealized gain (loss) on marketable securities

Comprehensive loss

Reconciliation of net loss to net loss attributable to common stockholders:
Net loss
Accretion of redeemable convertible preferred stock to redemption value, including dividends 
on preferred stock

Net loss attributable to common stockholders

Net loss per common share attributable to common stockholders, basic and diluted

2022

Years Ended December 31,
2021

2020

  $

60,920     $

51,844     $

24  

311,594    
87,805    
399,399    
(338,479 )  

23,900    
20,200    
18,904    
15,297    
78,301    
(260,178 )  
(3,410 )  
(25,500 )  
(289,088 )   $

(2,380 )  
(291,468 )   $

387,087      
57,222      
444,309      
(392,465 )    

(1,000 )    
17,690      
5,146      
(9 )    
21,827      
(370,638 )    
—      
—      
(370,638 )   $

(41 )    
(370,679 )   $

103,179  
29,605  
132,784  
(132,760 )

(63,400 )
517  
—  
1,051  
(61,832 )
(194,592 )
—  
—  
(194,592 )

(25 )
(194,617 )

(289,088 )  

(370,638 )    

(194,592 )

—    

(289,088 )   $

—      
(370,638 )   $

(4.13 )   $

(5.77 )   $

(1,277 )
(195,869 )

(4.19 )

  $

  $

  $
  $

Weighted-average common shares outstanding, basic and diluted

70,015,305    

64,227,676      

46,733,221  

The accompanying notes are an integral part of these consolidated financial statements.
F-6

 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
   
  
 
  
 
 
 
 
 
 
 
 
     
     
   
  
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
  
 
  
 
 
 
   
 
     
 
 
 
 
 
 
 
 
 
 
 
Beam Therapeutics Inc. 
Consolidated Statements of Redeemable Convertible Preferred Stock and Stockholders’ Equity (Deficit)
(in thousands, except share amounts)

Balance at December 31, 2019

Accretion of redeemable convertible preferred stock to 
redemption value
Conversion of redeemable convertible preferred stock to 
common stock upon closing of initial public offering
Issuance of common stock from initial public offering, net 
of issuance costs of $18.7 million
Issuance of common stock from October 2020 public 
offering, net of issuance costs of $8.5 million
Issuance of common stock related to license agreements
Vesting of restricted common stock

Stock-based compensation
Exercise of common stock options
Other comprehensive income (loss)
Net loss

Balance at December 31, 2020

Issuance of common stock from private placement, net of 
issuance costs of $8.0 million
Issuance of common stock from At-the-Market offering, net 
of issuance costs of $14.6 million
Issuance of common stock for success payment liability
Issuance of common stock to acquire Guide

Vesting of restricted common stock

Stock-based compensation
Exercise of common stock options
Other comprehensive income (loss)
Net loss

Balance at December 31, 2021

Purchase of common stock under ESPP
Issuance of common stock from At-the-Market offering, net 
of issuance costs of $2.7 million
Vesting of restricted common stock
Stock-based compensation
Exercise of common stock options
Other comprehensive income (loss)
Net loss

Balance at December 31, 2022

Shares
130,616,78
4  

—  
(130,616,7

Redeemable Convertible
Preferred Stock

Common Stock

    Amount

    Amount

Accumulate
d
Other
Comprehen
sive
Income 
(Loss)

Additional
Paid-in

    Capital

Accumulate
d

Total
Stockholde
rs’

Deficit

Equity

  $ 302,049  

1,277  

84 )  

(303,326 )    

—  

—  
—  

—  
—  
—  
—  
—  

—  

  $

—  

—  
—  

—  

—  
—  
—  
—  
—  

—  

—  

—  
—  
—  
—  
—  
—  

  $

—  

  $

—  

—  
—  

—  
—  
—  
—  
—  

—  

—  

—  
—  

—  

—  
—  
—  
—  
—  

—  

—  

—  
—  
—  
—  
—  
—  

—  

Shares
7,326,18
5  

—  
29,127,5
23  
12,176,4
71  
5,750,00
0  
375,307  
1,638,96
8  
—  
859,724  
—  
—  
57,254,1
78  

2,795,70
0  
4,907,19
5  
349,650  
1,087,15
3  
1,020,88
7  
—  
974,662  
—  
—  
68,389,4
25  

70,073  
1,909,10
3  
424,303  
—  
484,435  
—  
—  
71,277,3
39  

  $

73  

  $

1,851  

  $

16  

  $ (203,044 )   $ (201,104 )

—  

291  

122  

58  
4  

16  
—  
9  
—  
—  

(1,277 )    

303,035  

188,201  

126,566  
5,747  

(16 )    

15,380  
3,146  
—  
—  

—  

—  

—  

—  
—  

—  
—  
—  
(25 )    
—  

—  

—  

—  

—  
—  

—  
—  
—  
—  

(194,592 )    

(1,277 )

303,326  

188,323  

126,624  
5,751  

—  
15,380  
3,155  
(25 )
(194,592 )

  $

573  

  $ 642,633  

  $

(9 )   $ (397,636 )   $

245,561  

28  

49  
4  

10  

10  
—  
10  
—  
—  

  $

684  

  $

—  

19  
4  
—  
5  
—  
—  

  $

712  

  $

251,977  

496,574  
29,996  

120,022  

(10 )    

43,570  
9,616  
—  
—  
1,594,37
8  

3,075  

108,057  

(4 )    

84,321  
2,727  
—  
—  
1,792,55
4  

—  

—  
—  

—  

—  
—  
—  
(41 )    
—  

—  

—  
—  

—  

—  
—  
—  
—  

(370,638 )    

252,005  

496,623  
30,000  

120,032  

—  
43,570  
9,626  
(41 )
(370,638 )

  $

(50 )   $ (768,274 )   $
—  

—  

826,738  

3,075  

—  
—  
—  
—  
(2,380 )    
—  

—  
—  
—  
—  
—  

(289,088 )    
(1,057,36

108,076  
—  
84,321  
2,732  
(2,380 )
(289,088 )

  $

(2,430 )   $

2 )   $

733,474  

The accompanying notes are an integral part of these consolidated financial statements.
F-7

 
 
 
 
 
   
   
   
   
 
 
 
 
 
   
   
   
 
 
 
   
 
 
 
 
   
 
 
 
 
   
   
 
 
 
 
 
 
 
   
   
   
 
 
 
 
   
 
 
 
 
   
   
   
 
 
 
 
   
 
 
 
 
   
   
   
 
 
 
 
   
 
 
 
 
   
   
   
 
 
 
 
   
 
 
 
 
   
   
 
 
 
 
   
 
 
 
 
   
   
   
 
 
 
 
   
 
 
 
 
   
   
   
 
 
 
 
   
 
 
 
 
   
   
 
 
 
 
   
 
 
 
 
   
   
 
 
   
 
 
 
 
   
 
 
 
 
   
   
   
 
 
 
 
   
 
 
 
 
   
   
   
 
 
 
 
   
 
 
 
 
   
   
   
 
 
 
 
   
 
 
 
 
   
   
   
 
 
 
 
   
 
 
 
 
   
   
 
 
 
 
   
 
 
 
 
   
   
   
 
 
 
 
   
 
 
 
 
   
   
   
 
 
 
 
   
 
 
 
 
   
   
 
 
 
 
   
 
 
 
 
   
   
 
 
   
 
 
 
 
   
 
 
 
 
   
   
   
 
 
 
 
   
 
 
 
 
   
   
   
 
 
 
 
   
 
 
 
 
   
   
 
 
 
 
   
 
 
 
 
   
   
   
 
 
 
 
   
 
 
 
 
   
   
   
 
 
 
 
   
 
 
 
 
   
   
 
 
 
 
   
 
 
 
 
   
   
 
 
   
 
 
Beam Therapeutics Inc. 
Consolidated Statements of Cash Flows 
(in thousands) 

Operating activities

Net loss
Adjustments to reconcile net loss to net cash provided by (used in) operating 
activities:

2022

Years Ended December 31,
2021

2020

  $

(289,088 )   $

(370,638 )   $

(194,592 )

Loss from equity method investment
Depreciation and amortization
Amortization of investment discount (premiums)
In-process research and development charge
Stock-based compensation expense
Change in operating lease right-of-use assets
Non-cash research and development license expense, net
Change in fair value of derivative liabilities
Change in fair value of contingent consideration liabilities
Change in fair value of non-controlling equity investments
Other
Changes in operating assets and liabilities:

Prepaid expenses and other current assets
Other long-term assets
Accounts payable
Accrued expenses and other liabilities
Operating lease liabilities
Collaboration receivable
Deferred revenue
Other long-term liabilities

Net cash provided by (used in) operating activities

Investing activities

Purchases of property and equipment
Purchases of marketable securities
Maturities of marketable securities
Net cash acquired from Guide
Purchase of non-controlling equity investment

Net cash used in investing activities

Financing activities

Proceeds from initial public offering, net of underwriting discount
Proceeds from October 2020 public offering, net of underwriting discount
Proceeds from issuance of common shares, net of commissions
Proceeds from issuances of stock under ESPP
Payment of equity offering costs
Proceeds from equipment financings
Repayment of equipment financings
Proceeds from exercise of stock options

Net cash provided by financing activities

25,500    
14,147    
(9,410 )  
—    
84,321    
8,430    
—    
(23,900 )  
(18,904 )  
(20,200 )  
3    

(7,753 )  
—    
2,373    
(16,933 )  
12,430    
300,000    
(35,920 )  
(2,569 )  
22,527    

(48,951 )  
(1,616,999 )  
1,204,614    
—    
—    
(461,336 )  

—    
—    
108,258    
3,075    
(188 )  
—    
(2,287 )  
2,732    
111,590    

—    
7,451    
(75 )  
154,953    
43,570    
8,990    
—    
1,000    
(5,146 )  
(17,690 )  
63    

746    
(197 )  
818    
43,914    
16,028    
(300,000 )  
348,156    
1,789    
(66,268 )  

(46,811 )  
(777,223 )  
529,270    
620    
—    
(294,144 )  

—    
—    
757,449    
—    
(8,816 )  
—    
(2,118 )  
9,626    
756,141    

Net change in cash, cash equivalents and restricted cash
Cash, cash equivalents and restricted cash—beginning of period
Cash, cash equivalents and restricted cash—end of period

(327,219 )  
572,740    
245,521     $

395,729    
177,011    
572,740     $

  $

The accompanying notes are an integral part of these consolidated financial statements. 
F-8

—  
4,735  
118  
—  
15,380  
4,737  
5,651  
63,400  
—  
(517 )
—  

(5,726 )
(154 )
60  
7,035  
3,151  
—  
—  
981  
(95,741 )

(16,357 )
(281,612 )
198,596  
—  
(750 )
(100,123 )

192,510  
127,018  
—  
—  
(2,059 )
3,267  
(1,569 )
3,155  
322,322  

126,458  
50,553  
177,011  

 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
   
 
     
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
     
     
   
 
 
 
 
 
 
 
 
 
 
Beam Therapeutics Inc. 
Consolidated statements of cash flows (continued)
(in thousands) 

Supplemental disclosure of cash flow information:

Cash paid for interest

Supplemental disclosure of noncash investing and financing activities:

Conversion of redeemable convertible preferred stock to common stock upon closing of the 
initial public offering
Property and equipment additions in accounts payable and accrued expenses

Receipt of common stock in exchange for technology license

Operating lease liabilities arising from obtaining right-of-use assets

Issuance of common stock for research and development licenses

Equity issuance costs in accounts payable and accrued expenses

Fair value of common stock issued to settle success payment liability

Contingent consideration liabilities assumed in asset acquisition

Fair value of equity instruments issued in connection with asset acquisition

Accretion of redeemable convertible preferred stock to redemption value, including dividends 
on preferred stock
Non-cash contribution of intellectual property to Orbital Therapeutics, Inc.

2022

Years Ended December 31,
2021

2020

376     $

567     $

561  

—     $
5,783     $
—     $
41,050     $
—     $
—     $
—     $
—     $
—     $

—     $
25,500     $

—     $
9,264     $
—     $
25,925     $
—     $
5     $
30,000     $
36,513     $
120,032     $

303,326  

5,067  

100  

74,723  

5,751  

—  

—  

—  

—  

—     $
—     $

1,277  

—  

  $

  $
  $
  $
  $
  $
  $
  $
  $
  $

  $
  $

The accompanying notes are an integral part of these consolidated financial statements

F-9

 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
   
 
     
     
   
 
 
Beam Therapeutics Inc.
Notes to consolidated financial statements

1. Nature of the business and basis of presentation 

Organization 

Beam Therapeutics Inc., which we refer to herein as the “Company” or “Beam,” is a biotechnology company committed to establishing the leading, fully 
integrated platform for precision genetic medicines. Beam’s vision is to provide life-long cures to patients suffering from genetic diseases. The Company 
was incorporated on January 25, 2017 as a Delaware corporation and began operations in July 2017. Its principal offices are in Cambridge, Massachusetts. 

In February 2021, the Company entered into an Agreement and Plan of Merger, or the Guide Merger Agreement, to acquire Guide Therapeutics, Inc., or 
Guide. Pursuant to the Guide Merger Agreement, the Company paid Guide’s former stockholders and optionholders upfront consideration in an aggregate 
amount of $120.0 million, excluding customary purchase price adjustments, in shares of its common stock, based upon the volume-weighted average price 
of the Company’s common stock over the ten trading-day period ending on February 19, 2021. In addition, Guide’s former stockholders and optionholders 
are eligible to receive up to an additional $100.0 million in technology milestone payments and $220.0 million in product milestone payments, payable in 
the Company’s common stock.

Liquidity and capital resources

Since its inception, the Company has devoted substantially all of its resources to building its base editing platform and advancing development of its 
portfolio of programs, establishing and protecting its intellectual property, conducting research and development activities, making arrangements to conduct 
manufacturing activities with contract manufacturing organizations, research and development costs including preclinical studies and IND-enabling studies, 
organizing and staffing the Company, maintaining its facilities and new facility build-outs, business planning, raising capital and providing general and 
administrative support for these operations. The Company is establishing internal manufacturing capabilities. The Company is subject to risks and 
uncertainties common to early-stage companies in the biotechnology industry including, but not limited to, technical risks associated with the successful 
research, development and manufacturing of product candidates, development by competitors of new technological innovations, dependence on key 
personnel, protection of proprietary technology, compliance with government regulations and the ability to secure additional capital to fund operations. 
Current and future programs will require significant research and development efforts, including extensive preclinical and clinical testing and regulatory 
approval prior to commercialization. These efforts require significant amounts of additional capital, adequate personnel and infrastructure. Even if the 
Company’s product development efforts are successful, it is uncertain when, if ever, the Company will realize significant revenue from product sales.

In February 2020, the Company completed its initial public offering, or IPO, in which the Company issued and sold 12,176,471 shares of its common 
stock, including 1,588,235 shares pursuant to the full exercise of the underwriters’ option to purchase additional shares, at a public offering price of $17.00 
per share, for aggregate gross proceeds of $207.0 million. The Company received approximately $188.3 million in net proceeds after deducting 
underwriting discounts and offering expenses payable by the Company. In connection with the IPO, all outstanding shares of the Company’s redeemable 
convertible preferred stock converted into 29,127,523 shares of its common stock.

In October 2020, the Company issued and sold 5,750,000 shares of its common stock, including 750,000 shares pursuant to the full exercise of the 
underwriters’ option to purchase additional shares, at a public offering price of $23.50 per share, for aggregate gross proceeds of $135.1 million. The 
Company received approximately $126.6 million in net proceeds after deducting underwriting discounts and offering expenses payable by the Company. 

On January 16, 2021, the Company entered into a Securities Purchase Agreement with certain purchasers, pursuant to which the Company agreed to sell 
and issue to the purchasers, in a private placement, shares of common stock of the Company. The closing of the private placement occurred on January 21, 
2021. The Company issued and sold 2,795,700 shares of its common stock at a purchase price of $93.00 per share for aggregate gross proceeds of $260.0 
million, before deducting fees to the placement agents and other offering expenses payable by the Company (See Note 12, Preferred stock and common 
stock). The Company received approximately $252.0 million in net proceeds after deducting fees to the placement agents and offering expenses payable by 
the Company.

In April 2021, the Company entered into an at the market, or ATM, sales agreement, or the Sales Agreement, with Jefferies LLC, or Jefferies, pursuant to 
which the Company was entitled to offer and sell, from time to time at prevailing market prices, shares of the Company’s common stock having aggregate 
gross proceeds of up to $300.0 million. The Company agreed to pay Jefferies a commission of up to 3.0% of the aggregate gross sale proceeds of any 
shares sold by Jefferies under the Sales Agreement. Between April and July 2021, the Company has sold 2,908,009 shares of its common stock under the 
Sales Agreement at an average price of $103.16 per share for aggregate gross proceeds of $300.0 million, before deducting commissions and offering 
expenses payable by the Company.

F-10

 
In July 2021, the Company and Jefferies entered into an amendment to the Sales Agreement to provide for an increase in the aggregate offering amount 
under the Sales Agreement, such that as of July 7, 2021, the Company may offer and sell shares of common stock having an aggregate offering price of an 
additional $500.0 million. As of December 31, 2022, the Company has sold 3,908,289 additional shares of its common stock under the amended Sales 
Agreement at an average price of $82.38 per share for aggregate gross proceeds of $322.0 million, before deducting commissions and offering expenses 
payable by the Company, resulting in an aggregate of $622.0 million in gross proceeds received under the Sales Agreement as of December 31, 2022.

In June 2021, the Company entered into a research collaboration agreement, or the Apellis Agreement, with Apellis Pharmaceuticals, Inc., or Apellis, 
which is focused on the use of certain of its base editing technology to discover new treatments for complement system-driven diseases. Pursuant to the 
Apellis Agreement, the Company received an upfront payment of $50.0 million in July 2021 and was eligible to receive an additional $25.0 million 
payment on the one-year anniversary of the effective date of the Apellis Agreement, or the First Anniversary Payment. In June 2022, the Company received 
the $25.0 million First Anniversary Payment.

In October 2021, the Company entered into an option and license agreement, or the Sana Agreement, with Sana Biotechnology, Inc., or Sana, pursuant to 
which the Company granted Sana non-exclusive commercial rights to its CRISPR Cas12b nuclease system for certain ex vivo engineered cell therapy 
programs. Pursuant to this agreement, the Company received an upfront payment of $50.0 million in October 2021.

In December 2021, the Company entered into a research collaboration agreement, or the Pfizer Agreement, with Pfizer Inc., or Pfizer, which is focused on 
in vivo base editing programs for three targets for rare genetic diseases of the liver, muscle and central nervous system. Under the terms of the Pfizer 
Agreement, the Company will conduct all research activities through development candidate selection for three undisclosed targets, which are not included 
in its existing programs. Pursuant to the Pfizer Agreement, the Company received an upfront payment of $300.0 million in January 2022. 

Since its inception, the Company has incurred substantial losses and had an accumulated deficit of $1.1 billion as of December 31, 2022. The Company 
expects to generate operating losses and negative operating cash flows for the foreseeable future.

The Company expects that its cash, cash equivalents, and marketable securities as of December 31, 2022 of $1.1 billion will be sufficient to fund its 
operations for at least the next 12 months from the date of issuance of these financial statements. The Company will need additional financing to support its 
continuing operations and pursue its growth strategy. Until such time as the Company can generate significant revenue from product sales, if ever, it 
expects to finance its operations through a combination of equity offerings, debt financings, collaborations, strategic alliances and licensing arrangements. 
The Company may be unable to raise additional funds or enter into such other agreements when needed on favorable terms or at all. The inability to raise 
capital as and when needed would have a negative impact on the Company’s financial condition and its ability to pursue its business strategy. The 
Company will need to generate significant revenue to achieve profitability, and it may never do so. 

COVID-19-related significant risks and uncertainties

While the COVID-19 pandemic did not significantly impact the Company’s business or results of operations during the year ended December 31, 2022, the 
extent to which the COVID-19 pandemic or any other public health emergency impacts the Company’s business, its corporate development objectives, 
results of operations and financial condition in future periods will depend on developments that are uncertain. Disruptions to the global economy and 
supply chain, disruption of global healthcare systems, and other significant impacts of the COVID-19 pandemic or other health emergencies could have a 
material adverse effect on the Company’s business, financial condition, results of operations and growth prospects. 

2. Summary of significant accounting policies 

Basis of presentation 

The accompanying consolidated financial statements have been prepared in accordance with United States generally accepted accounting principles, or 
GAAP. Any reference in these notes to applicable guidance is meant to refer to the authoritative GAAP as found in the Accounting Standards Codification, 
or ASC, and Accounting Standards Update, or ASU, of the Financial Accounting Standards Board, or FASB. 

Principles of consolidation

The accompanying consolidated financial statements include the results of operations of the Company and its wholly-owned subsidiaries. All intercompany 
transactions and balances have been eliminated in consolidation. 

In September 2021, the Company's wholly-owned subsidiary Blink Therapeutics Inc., or Blink, merged with and into Beam, such that Blink’s separate 
corporate existence ceased and Beam Therapeutics Inc. continued as the surviving corporation. 

F-11

 
Use of estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported 
amounts of assets, liabilities, revenues and expenses, and the disclosure of contingent assets and liabilities as of and during the reporting period. The 
Company bases its estimates and assumptions on historical experience when available and on various factors that it believes to be reasonable under the 
circumstances. Significant estimates and assumptions reflected in these consolidated financial statements include, but are not limited to, incremental 
borrowing rate used in the calculation of lease liabilities, research and development expenses, the fair values of common stock, stock-based compensation, 
contingent consideration liabilities, success payments and certain judgments regarding revenue recognition. Actual results could differ from these 
estimates.

Cash, cash equivalents, and restricted cash

Cash and cash equivalents consist of standard checking accounts, money market accounts, and all highly liquid investments with a remaining maturity of 
three months or less at the date of purchase. Restricted cash represents collateral provided for letters of credit issued as security deposits in connection with 
the Company’s leases of its corporate and manufacturing facilities.

The following table reconciles cash, cash equivalents, and restricted cash reported within the Company’s consolidated balance sheets to the total of the 
amounts shown in the consolidated statements of cash flows (in thousands):

Cash and cash equivalents
Restricted cash

Total cash, cash equivalents, and restricted cash

Marketable securities

  $

  $

2022

232,767     $
12,754    
245,521     $

December 31,
2021

559,994     $
12,746    
572,740     $

2020

162,171  
14,840  
177,011  

The Company classifies marketable securities with a remaining maturity when purchased of greater than three months as available-for-sale. Available-for-
sale securities are maintained by the Company’s investment managers and consist of commercial paper, high-grade corporate notes, U.S. Treasury 
securities and government securities. Available-for-sale securities are carried at fair value with the unrealized gains and losses included in accumulated 
other comprehensive (loss) income as a component of stockholders’ equity until realized. Any premium or discount arising at purchase is amortized and/or 
accreted to interest income and/or expense over the life of the instrument. Realized gains and losses are determined using the specific identification method 
and are included in interest and other income (expense), net.

Corporate equity securities

The Company classifies investments in equity securities that have a readily determinable fair value as marketable securities in the Company's consolidated 
balance sheets. The Company’s marketable securities are stated at fair value. Typically, the fair value of these securities is based on a quoted price for an 
identical equity security. The Company held an investment in privately issued corporate equity securities, which were accounted for as investments in 
equity securities. This investment did not have a readily determinable fair value and the Company valued the investment based on the cost of the equity 
securities adjusted for observable market transactions or impairments, if any, and records any changes in value through earnings. The Company records 
changes in the fair value of its equity securities in other income (expense), net in its consolidated statements of operations and other comprehensive loss. 

Concentrations of credit risk 

Financial instruments that are potentially subject to significant concentration of credit risk consist primarily of cash, cash equivalents, marketable securities, 
and restricted cash. The Company attempts to minimize the risk related to marketable securities by working with highly rated financial institutions that 
invest in a broad and diverse range of financial instruments as defined the Company. The Company has established guidelines relative to credit ratings and 
maturities intended to safeguard principal balances and maintain liquidity. The Company maintains its funds in accordance with its investment policy, 
which defines allowable investments, specifies credit quality standards and is designed to limit credit exposure to any single issuer. 

Guarantees and indemnifications 

As permitted under Delaware law, the Company indemnifies its officers, directors, consultants, and employees for certain events or occurrences that happen 
by reason of the relationship with, or position held at, the Company. For the twelve months ended December 31, 2022, 2021 and 2020, the Company had 
not experienced any losses related to these indemnification obligations, and no claims were outstanding. The Company does not expect significant claims 
related to these indemnification obligations and, consequently, concluded that the fair value of these obligations is negligible, and no related reserves were 
established.

F-12

 
 
 
 
 
 
   
 
 
 
 
 
 
 
Equity issuance costs 

The Company capitalizes incremental legal, professional, accounting and other third-party fees that were directly associated with its stock offerings as other 
non-current assets until the offerings are consummated. Upon consummation, these costs are recorded in stockholders’ equity as a reduction of additional 
paid-in-capital generated as a result of the offerings. As of December 31, 2022 and 2021, there were no deferred offering costs. 

Fair value of financial instruments 

ASC Topic 820, Fair Value Measurement, or ASC 820, establishes a fair value hierarchy for instruments measured at fair value that distinguishes between 
assumptions based on market data (observable inputs) and the Company’s own assumptions (unobservable inputs). Observable inputs are inputs that market 
participants would use in pricing the asset or liability based on market data obtained from independent sources. Unobservable inputs are inputs that reflect 
the Company’s assumptions about the inputs that market participants would use in pricing the assets or liability and are developed based on the best 
information available in the circumstances. ASC 820 identifies fair value as the price that would be received to sell an asset or paid to transfer a liability in 
an orderly transaction between market participants at the measurement date. As a basis for considering market participant assumptions in fair value 
measurements, ASC 820 establishes a three-tiered value hierarchy that distinguishes between the following: 

Level 1—Quoted market prices in active markets for identical assets or liabilities. 

Level 2—Inputs other than Level 1 inputs that are either directly or indirectly observable, such as quoted market prices, interest rates and yield 
curves. 

Level 3—Unobservable inputs for the asset or liability (i.e. supported by little or no market activity). Level 3 inputs include management’s own 
assumptions about the assumptions that market participants would use in pricing the asset or liability (including assumptions about risk). 

To the extent the valuation is based on models or inputs that are less observable or unobservable in the market, the determination of fair values requires 
more judgment. Accordingly, the degree of judgment exercised by the Company in determining fair value is greatest for instruments categorized as Level 3. 
A financial instrument’s level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. 

There have been no changes to the valuation methods utilized during the years ended December 31, 2022 and 2021. The Company evaluates transfers 
between levels at the end of each reporting period. 

Property and equipment 

Property and equipment are stated at cost less accumulated depreciation. Depreciation expense is recognized using the straight-line method over the 
estimated useful life of each asset as follows: 

Asset category
Computer equipment and software
Laboratory equipment and office furniture
Leasehold improvements

Estimated useful life
3 years
5 years

  Shorter of useful life or remaining term

Upon retirement or sale, the cost of assets disposed of and the related accumulated depreciation are removed from the accounts and any resulting gain or 
loss is included in interest and other income (expense). Expenditures for repairs and maintenance are charged to expense as incurred.

F-13

 
 
 
 
 
Impairment of long-lived assets

The Company evaluates its long-lived assets, which consist primarily of property and equipment and operating lease right-of-use assets, for impairment 
whenever events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. Recoverability of assets to be held 
and used is measured by a comparison of the carrying amount of an asset to the future undiscounted net cash flows expected to be generated by the asset. If 
such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the asset exceeds 
the fair value of the asset. There were no impairment losses recognized during the years ended December 31, 2022, 2021 and 2020.

Freestanding financial instruments and derivatives

Pursuant to a license agreement between the President and Fellows of Harvard College, or Harvard, and the Company, or the Harvard License Agreement, 
and a license agreement with The Broad Institute, Inc., or Broad Institute, and the Company, or the Broad License Agreement, (see Note 10, License 
Agreements), the Company is required to make success payments to Harvard and Broad Institute based the achievement of specified multiples of the initial 
weighted average value of the Company’s redeemable convertible Series A-1 Preferred Stock and the Company’s redeemable convertible Series A-2 
Preferred Stock, or together the Series A Preferred, at specified valuation dates, payable in cash or Company common stock. Subsequent to the IPO, the 
amount of the success payments is based on the market value of Beam’s common stock. The success payments are accounted for under ASC 815, 
Derivatives and Hedging and were initially recorded at fair value with a corresponding charge to research and development expense. The liabilities are 
marked to market at each balance sheet date with all changes in value recognized in other income (expense), in the consolidated statement of operations 
and other comprehensive loss. The Company will continue to adjust the liability for changes in fair value until the earlier of the achievement or expiration 
of the success payment obligation. To determine the estimated fair value of the success payments, the Company used a Monte Carlo simulation model, 
which models the value of the liability based on several key variables, including probability of event occurrence, timing of event occurrence, as well as the 
value of the Series A Preferred, prior to the IPO, and the value of the Company’s common stock, subsequent to the IPO. 

Leases and rent expense

The Company accounts for leases using a right-of-use, or ROU, model, which recognizes that, at the date of commencement, a lessee has a financial 
obligation to make lease payments to the lessor for the right to use the underlying asset during the lease term.

At the inception of an arrangement, the Company determines whether the arrangement is or contains a lease based on the unique facts and circumstances 
present in the arrangement. Leases with a term greater than one year are recognized on the balance sheet as ROU assets and short-term and long-term lease 
liabilities, as applicable. ROU assets represent the Company’s right to use an underlying asset for the lease term and lease liabilities represent its obligation 
to make lease payments arising from the lease. The Company typically only includes an initial lease term in its assessment of a lease arrangement. It also 
considers termination options and factors those into the determination of lease payments. Options to renew a lease are not included in the assessment unless 
there is reasonable certainty that the Company will renew.

Operating lease liabilities and their corresponding ROU assets are recorded based on the present value of lease payments over the expected remaining lease 
term. Certain adjustments to the ROU asset may be required for items such as incentives received. The interest rate implicit in lease contracts is typically 
not readily determinable. As a result, the Company utilizes its incremental borrowing rate, which reflects the fixed rate at which it could borrow on a 
collateralized basis the amount of the lease payments in the same currency, for a similar term, in a similar economic environment. Lease expense for lease 
payments is recognized on a straight-line basis over the lease term.

The Company is required to pay fees for operating expenses in addition to monthly base rent for certain operating leases (non-lease components). The 
Company has elected the practical expedient which allows non-lease components to be combined with lease components for all asset classes. Variable non-
lease components are not included within the lease right-of-use asset and lease liability on the consolidated balance sheet, and instead are reflected as 
expense in the period they are paid.

Leasehold improvements are not unique and are retained by the lessor at the end of the lease. However, in the case of a space designed to be suitable for the 
Company’s specific real estate needs and if the Company is responsible for cost overruns, the Company is the accounting owner of the leasehold 
improvements and costs associated are capitalized. 

The Company’s real estate operating leases provide for scheduled annual rent increases throughout the lease terms. The Company recognizes the effects of 
the scheduled rent increases on a straight-line basis over the full terms of the lease. Tenant improvement allowances, if any, provided by a landlord are 
recorded as a reduction of the ROU asset related to that lease.

Asset acquisitions

The Company measures and recognizes asset acquisitions that are not deemed to be business combinations based on the cost to acquire the assets, which 
includes transaction costs, and the consideration is allocated to the items acquired based on a relative fair value methodology. Goodwill is not recognized in 
asset acquisitions. In an asset acquisition, the cost allocated to acquire in-process research and development with no alternative future use is charged to 
research and development expense at the acquisition date.

At the time of acquisition, the Company determines if a transaction should be accounted for as a business combination or acquisition of assets.

F-14

 
Contingent consideration liabilities

The Company may be required to make milestone payments to the former stockholders and optionholders of Guide in the form of its common stock based 
on the achievement of certain product and technology milestones. The payments are accounted for under ASC 480, Distinguishing Liabilities from Equity. 
These contingent consideration liabilities are carried at fair value which was estimated by applying a probability-based model, which utilized inputs 
primarily based upon the achievement and related timing of certain product and technology milestones that were unobservable in the market. The estimated 
fair value of contingent consideration liabilities, initially measured and recorded on the acquisition date, are considered to be a Level 3 measurement and 
are reviewed quarterly, or whenever events or circumstances occur that indicate a change in fair value. The contingent consideration liabilities are recorded 
at fair value at the end of each reporting period with changes in estimated fair values recorded in other income (expense) in the consolidated statements of 
operations and other comprehensive loss.

The estimated fair value is determined based on probability adjusted discounted cash flow model that include significant estimates and assumptions 
pertaining to technology and product development. Significant changes in any of the probabilities of success or in the probabilities as to the periods in 
which milestones would be achieved would result in a significantly higher or lower fair value measurement. The Company will continue to adjust the 
liabilities for changes in fair value until the earlier of the achievement or expiration of the obligations.

Revenue recognition

At inception, the Company determines whether contracts are within the scope of ASC 606 or other topics. For contracts that are determined to be within the 
scope of ASC 606, revenue is recognized when a customer obtains control of promised goods or services. The amount of revenue recognized reflects the 
consideration to which the Company expects to be entitled to receive in exchange for these goods and services. To achieve this core principle, the Company 
applies the following five steps: (i) identify the contract with the customer; (ii) identify the performance obligations in the contract; (iii) determine the 
transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when the performance 
obligation is satisfied. The Company only applies the five-step model to contracts when it determines that collection of substantially all consideration for 
goods and services that are transferred is probable based on the customer’s intent and ability to pay the promised consideration.

Performance obligations promised in a contract are identified based on the goods and services that will be transferred to the customer that are both capable 
of being distinct and are distinct in the context of the contract. To the extent a contract includes multiple promised goods and services, the Company applies 
judgment to determine whether promised goods and services are both capable of being distinct and are distinct in the context of the contract. If these 
criteria are not met, the promised goods and services are accounted for as a combined performance obligation.

The transaction price is determined based on the consideration to which the Company will be entitled in exchange for transferring goods and services to the 
customer. To the extent the transaction price includes variable consideration, the Company estimates the amount of variable consideration that should be 
included in the transaction price utilizing either the expected value method or the most likely amount method, depending on the nature of the variable 
consideration. Variable consideration is included in the transaction price if, in management’s judgment, it is probable that a significant future reversal of 
cumulative revenue under the contract will not occur. Any estimates, including the effect of the constraint on variable consideration, are evaluated at each 
reporting period for any changes. Determining the transaction price requires significant judgment and is discussed in further detail for each of the 
Company’s license and collaboration agreements in Note 11, Collaboration and license agreements.

If the contract contains a single performance obligation, the entire transaction price is allocated to the single performance obligation. Contracts that contain 
multiple performance obligations require an allocation of the transaction price to each performance obligation on a relative standalone selling price basis 
unless the transaction price is variable and meets the criteria to be allocated entirely to a performance obligation or to a distinct service that forms part of a 
single performance obligation. The consideration to be received is allocated among the separate performance obligations based on relative standalone 
selling prices. Determining the standalone selling price requires significant judgment and is discussed in further detail for each of the Company’s license 
and collaboration agreements in Note 11, Collaboration and license agreements.

The Company satisfies performance obligations either over time or at a point in time. Revenue is recognized over time if either (i) the customer 
simultaneously receives and consumes the benefits provided by the entity’s performance, (ii) the entity’s performance creates or enhances an asset that the 
customer controls as the asset is created or enhanced, or (iii) the entity’s performance does not create an asset with an alternative use to the entity and the 
entity has an enforceable right to payment for performance completed to date. If the entity does not satisfy a performance obligation over time, the related 
performance obligation is satisfied at a point in time by transferring the control of a promised good or service to a customer.

F-15

 
Licenses of intellectual property, or IP: If the license to the Company’s IP is determined to be distinct from the other performance obligations identified in 
the arrangement, the Company recognizes revenues from consideration allocated to the license when the license is transferred to the customer and the 
customer can use and benefit from the licenses. For licenses that are combined with other promises, the Company utilizes judgment to assess the nature of 
the combined performance obligation to determine whether the combined performance obligation is satisfied over time or at a point in time and, if over 
time, the appropriate method of measuring progress for purposes of recognizing revenue. The Company evaluates the measure of progress each reporting 
period and, if necessary, adjusts the measure of performance and related revenue recognition. Determining the revenue recognition of IP licenses requires 
significant judgment and is discussed in further detail for each of the Company’s license and collaboration agreements in Note 11, Collaboration and 
license agreements.

Milestone payments: At the inception of each arrangement that includes development or regulatory milestone payments, the Company evaluates the 
probability of reaching the milestones and estimates the amount to be included in the transaction price using the most likely amount method. If it is 
probable that a significant revenue reversal would not occur in the future, the associated milestone value is included in the transaction price. Milestone 
payments that are not within the Company’s control or the licensee’s, such as regulatory approvals, are not considered probable of being achieved until 
those approvals are received and therefore revenue recognized is constrained as management is unable to assert that a reversal of revenue would not be 
possible. The transaction price is then allocated to each performance obligation on a relative standalone selling price basis, for which the Company 
recognizes revenue as or when the performance obligations under the contract are satisfied. At the end of each subsequent reporting period, the Company 
re-evaluates the probability of achievement of such development milestones and any related constraint, and if necessary, adjusts its estimate of the overall 
transaction price. Any such adjustments are recorded on a cumulative catch-up basis, which would affect revenues and earnings in the period of adjustment. 
To date, the Company has not recognized any milestone revenue resulting from any of its agreements.

Commercial Milestone Payments and Royalties: For arrangements that include sales-based royalties, including milestone payments based on levels of 
sales, if the license is deemed to be the predominant item to which the royalties relate, the Company recognizes revenue at the later of (i) when the related 
sales occur, or (ii) when the performance obligation to which some or all of the royalty has been allocated has been satisfied (or partially satisfied). To date, 
the Company has not recognized any royalty revenue resulting from any of its agreements.

When no performance obligations are required of the Company, or following the completion of the performance obligation period, such amounts are 
recognized as revenue upon transfer of control of the goods or services to the customer. Generally, all amounts received or due other than sales-based 
milestones and royalties are classified as license and collaboration revenue. Sales-based milestones and royalties will be recognized as royalty revenue at 
the later of when the related sales occur or when the performance obligation to which some or all of the royalty has been allocated has been satisfied (or 
partially satisfied).

Deferred revenue expected to be recognized within the next twelve months is classified as a current liability. 

Contract balances

The Company recognizes a contract asset when the Company transfers goods or services to a customer before the customer pays consideration or before 
payment is due, excluding any amounts presented as an account or other receivable. A contract asset is an entity’s right to consideration in exchange for 
goods or services that the entity has transferred to a customer. The contract liabilities, or deferred revenue, primarily relate to contracts where the Company 
has received payment, but it has not yet satisfied the related performance obligations. Upfront payments and fees are recorded as deferred revenue upon 
receipt or when due and may require deferral of revenue recognition to a future period until the Company satisfies its obligations under these arrangements. 
Upfront payment contract liabilities resulting from the Company’s license agreements do not represent a financing component as the payment is not 
financing the transfer of goods or services, and the technology underlying the licenses granted reflects research and development expenses already incurred 
by the Company. 

Research and development costs 

Research and development costs are charged to expense as incurred. Research and development costs consist of costs incurred in performing research and 
development activities, including salaries and bonuses, stock-based compensation, employee benefits, facilities costs, laboratory supplies, depreciation, 
manufacturing expenses, preclinical expenses, consulting, and other contracted services. The cost of obtaining licenses for certain technology or IP is 
recorded to research and development expense when incurred if the licensed technology or IP has not yet reached technological feasibility and has no 
alternative future use. Costs for certain research and development activities are recognized based on the terms of the individual arrangements, which may 
differ from the pattern of costs incurred, and are reflected in the financial statements as prepaid or accrued research and development costs.

F-16

 
Stock-based compensation

The Company’s stock-based compensation program allows for grants of stock options, restricted stock awards and restricted stock units. Grants are 
awarded to employees and non-employees, including directors.

The Company accounts for stock-based compensation in accordance with ASC Topic 718, Compensation-Stock Compensation, or ASC 718. ASC 718 
requires all stock-based payments to employees, non-employees and directors to be recognized as expense in the consolidated statements of operations and 
other comprehensive loss based on their fair values. The Company estimates the fair value of options granted using the Black-Scholes option pricing 
model, or Black-Scholes, for stock option grants to both employees and non-employees. The fair value of the Company’s common stock is used to 
determine the fair value of restricted stock awards and restricted stock units.

Stock-based compensation awards are subject to either service- or performance-based vesting conditions. Compensation expense related to awards to 
employees, directors and non-employees with service-based vesting conditions is recognized on a straight-line basis based on the grant date fair value over 
the associated service period of the award, which is generally the vesting term. Compensation expense related to awards to employees with performance-
based vesting conditions is recognized based on grant date fair value over the requisite service period using the accelerated attribution method to the extent 
achievement of the of performance condition is probable.

The Black-Scholes option pricing model requires inputs based on certain subjective assumptions, including (i) the expected stock price volatility, (ii) the 
expected term of the award, (iii) the risk-free interest rate, and (iv) expected dividends. The Company bases its computation of expected volatility on the 
historical volatility of a representative group of public companies with similar characteristics to the Company, including stage of product development and 
life science industry focus, weighted with its own volatility for the period in which its stock has been publicly traded. The historical volatility is calculated 
based on a period of time commensurate with expected term assumption. The Company uses the simplified method as prescribed by the SEC Staff 
Accounting Bulletin No. 107, Share-Based Payment, to calculate the expected term for options granted to employees and non-employees, whereby the 
expected term equals the arithmetic average of the vesting term and the original contractual term of the options due to its lack of sufficient historical data. 
The risk-free interest rate is based on U.S. Treasury securities with a maturity date commensurate with the expected term of the associated award. The 
expected dividend yield is assumed to be zero as the Company has never paid dividends and has no current plans to pay any dividends on its common 
stock. The Company recognizes forfeitures as they occur.

Patent costs

All patent-related costs incurred in connection with filing and prosecuting patent applications are expensed as incurred. Due to the uncertainty about the 
recovery of the expenditure, amounts incurred are classified as general and administrative expenses in the accompanying consolidated statements of 
operations and other comprehensive loss.

Variable interest entities

The Company reviews each legal entity in which it has a financial interest to determine whether or not the entity is a variable interest entity, or VIE. If the 
entity is a VIE, the Company assesses whether or not it is the primary beneficiary of that VIE based on a number of factors, including (i) which party has 
the power to direct the activities that most significantly affect the VIE’s economic performance, (ii) the parties’ contractual rights and responsibilities 
pursuant to any contractual agreements and (iii) which party has the obligation to absorb losses or the right to receive benefits from the VIE. If the 
Company determines that it is the primary beneficiary of a VIE, it consolidates the financial statements of the VIE into its consolidated financial statements 
at the time that determination is made. On a quarterly basis, the Company evaluates whether it continues to be the primary beneficiary of any consolidated 
VIEs. If the Company determines that it is no longer the primary beneficiary of a consolidated VIE, or no longer has a variable interest in the VIE, the 
Company deconsolidates the VIE in the period that the determination is made.

Income taxes

The Company recognizes deferred tax assets and liabilities for the expected future tax consequences of events that have been included in the Company’s 
financial statements and tax returns. Deferred tax assets and liabilities are determined based upon the differences between the financial statement carrying 
amounts and the tax bases of existing assets and liabilities and for loss and credit carryforwards, using enacted tax rates expected to be in effect in the year 
in which the differences are expected to reverse. Deferred tax assets are reduced by a valuation allowance if it is more likely than not that these assets may 
not be realized. The Company determines whether it is more likely than not that a tax position will be sustained upon examination. If it is not more likely 
than not that a position will be sustained, none of the benefit attributable to the position is recognized. The tax benefit to be recognized for any tax position 
that meets the more-likely-than-not recognition threshold is calculated as the largest amount that is more than 50% likely of being realized upon resolution 
of the contingency. The Company accounts for interest and penalties related to uncertain tax positions as part of its provision for income taxes.

F-17

 
Comprehensive loss

Comprehensive loss is defined as the change in stockholders’ equity of a business enterprise during a period from transactions and other events and 
circumstances from non-owner sources. Comprehensive loss includes net loss as well as other changes in stockholders’ deficit which includes certain 
changes in equity that are excluded from net loss. The Company’s only element of other comprehensive loss is unrealized gains and losses on marketable 
securities.

Net loss per share

The Company follows the two-class method when computing net loss per share, as the Company has issued shares that meet the definition of participating 
securities. The two-class method determines net loss per share for each class of common and participating securities according to dividends declared or 
accumulated and participation rights in undistributed earnings. The two-class method requires income available to common stockholders for the period to 
be allocated between common and participating securities based upon their respective rights to receive dividends as if all income for the period had been 
distributed.

Basic net loss per share attributable to common stockholders is computed by dividing the net loss attributable to common stockholders by the weighted 
average number of common shares outstanding for the period. Diluted net loss attributable to common stockholders is computed by adjusting net loss 
attributable to common stockholders to reallocate undistributed earnings based on the potential impact of dilutive securities. Diluted net loss per share 
attributable to common stockholders is computed by dividing the diluted net loss attributable to common stockholders by the weighted average number of 
common shares outstanding for the period, including potential dilutive common shares assuming the dilutive effect of common stock equivalents.

For purposes of the dilutive net loss per share calculation, stock options and stock units for which the performance and market vesting conditions have been 
deemed probable, potential dilutive securities, which include redeemable convertible preferred stock, unvested restricted stock, and common stock options 
are considered to be common stock equivalents, while stock options and stock units with performance- or market-based vesting conditions that were not 
deemed probable are not considered to be common stock equivalents.

The Company’s redeemable convertible preferred stock contractually entitled the holders of such shares to participate in dividends but did not contractually 
require the holders of such shares to participate in losses of the Company. Accordingly, in periods in which the Company reported a net loss, such losses 
were not allocated to such participating securities. In periods in which the Company reported a net loss attributable to common stockholders, diluted net 
loss per share attributable to common stockholders was the same as basic net loss per share attributable to common stockholders, since dilutive common 
shares were not assumed to have been issued if their effect is anti-dilutive. The Company reported a net loss attributable to common stockholders for the 
years ended December 31, 2022, 2021 and 2020.

Equity method of accounting

In circumstances where the Company has the ability to exercise significant influence, but not control, over the operating and financial policies of an entity
in  which  the  Company  has  an  investment  in  common  stock  or  in-substance  common  stock,  the  Company  utilizes  the  equity  method  of  accounting  for 
recording related investment activity. In assessing whether the Company exercises significant influence, the Company considers the nature and magnitude 
of the investment, participating rights the Company holds, and relevant factors such as the presence of a collaborative or other business relationship.

Under the equity method of accounting, the Company’s investments are initially recorded at cost on the consolidated balance sheets. Upon recording an 
equity  method  investment,  the  Company  evaluates  whether  there  are  basis  differences  between  the  carrying  value  and  fair  value  of  the  Company’s 
proportionate share of the investee’s underlying net assets. Typically, the Company amortizes basis differences identified on a straight-line basis over the 
underlying asset’s or liability's estimated useful lives when calculating the attributable earnings or losses, excluding the basis differences attributable to in-
process research and development, or IPR&D, that has no alternative future use. To the extent a basis difference relates to IPR&D and the investee is not a 
business as defined in ASC 805, Business Combinations, or ASC 805, the Company immediately expenses such basis difference related to IPR&D. If the 
Company is unable to attribute all of the basis difference to specific assets or liabilities of the investee, the residual excess of the cost of the investment over 
the proportional fair value of the investee’s assets and liabilities is considered to be Equity Method Goodwill and is recognized within the equity investment 
balance,  which  is  tracked  separately  within  the  Company’s  memo  accounts.  The  Company  subsequently  records  in  the  consolidated  statements  of 
operations and comprehensive loss its share of income or loss of the other entity within the loss from equity method investment line item. If the share of 
losses exceeds the carrying value of the Company’s investment, the Company will suspend recognizing additional losses and will continue to do so unless 
it commits to providing additional funding or commits to guarantee investee liabilities. 

F-18

 
 
The Company evaluates its equity method investments for impairment whenever events or changes in circumstances indicate that the carrying amounts of 
such  investments  may  be  impaired  and  considers  qualitative  and  quantitative  factors  including  the  investee’s  financial  metrics,  product  and  commercial 
outlook and cash usage. If a decline in the value of an equity method investment is determined to be other than temporary, a loss is recorded in earnings in 
the current period and the investment is written down to fair value.

At December 31, 2022, the Company accounted for its investment in Orbital under the equity method of accounting. Refer to Note 8 for further details.

Segment and geographic information

Operating segments are defined as components of an entity about which separate discrete information is available for evaluation by the chief operating 
decision maker, or CODM, or decision-making group, in deciding how to allocate resources and in assessing performance. The CODM is the Company’s 
Chief Executive Officer. The Company views its operations as and manages its business in one operating segment operating exclusively in the United 
States.

Recently adopted accounting pronouncements

In June 2022, the FASB issued ASU 2022-03, Fair Value Measurement (Topic 820): Fair Value Measurement of Equity Securities Subject to Contractual 
Sale Restrictions, which clarifies the guidance of measuring the fair value of equity securities subject to contractual restrictions that prohibit the sale of the 
equity securities. The ASU amends ASC 820 to clarify that a contractual sales restriction is not considered in measuring an equity security at fair value and 
to introduce new disclosure requirements for equity securities subject to contractual sale restrictions that are measured at fair value. The ASU applies to 
both holders and issuers of equity and equity-linked securities measured at fair value. The amendments in this ASU are effective for the Company in fiscal 
years beginning after December 15, 2023, and interim periods within those fiscal years. Early adoption is permitted for both interim and annual financial 
statements that have not yet been issued or made available for issuance. The Company early adopted this standard in the fourth quarter of 2022. This new 
accounting standard was applicable to the Company's accounting for its investment in certain equity securities remeasured at fair value. The adoption of 
this standard did not have a material impact on the Company's consolidated financial statements. 

F-19

 
 
3. Property and equipment, net

Property and equipment consist of the following (in thousands):

Leasehold improvements
Lab equipment
Furniture and fixtures
Computer equipment
Construction in process

Total property and equipment

Less accumulated depreciation
Property and equipment, net

December 31,

2022

2021

  $

  $

85,804     $
47,383    
4,332    
3,073    
5,198    
145,790    
(30,170 )  
115,620     $

57,760  
29,905  
3,679  
1,646  
7,349  
100,339  
(16,081 )
84,258  

The following table summarizes depreciation expense incurred (in thousands):

Depreciation expense

  $

14,097     $

7,201     $

4,735  

2022

Years Ended December 31,
2021

2020

4. Fair Value of financial instruments 

The Company’s financial instruments that are measured at fair value on a recurring basis consist of cash equivalents, marketable securities, equity securities 
of Verve Therapeutics, Inc, or Verve, and Prime Medicine, Inc., or Prime, contingent consideration liabilities related to the Guide Merger Agreement and 
success payment derivative liabilities pursuant to the Harvard and Broad License Agreements.

The following tables set forth the fair value of the Company’s financial assets and liabilities by level within the fair value hierarchy at December 31, 2022 
(in thousands): 

Assets

Cash equivalents:

Money market funds
Commercial paper
Corporate notes
Marketable securities:
Commercial paper
Corporate notes
U.S. Treasury securities
U.S. Government securities

Equity securities included in marketable securities:

Corporate equity securities

Total assets

Liabilities

Success payment liability – Harvard
Success payment liability – Broad Institute
Contingent consideration liability – Technology
Contingent consideration liability – Product

Total liabilities

  $

  $

  $

  $

Carrying
amount

Fair
value

Level 1

Level 2

Level 3

218,794    
10,475    
3,498    

577,728    
18,996    
145,312    
62,864    

218,794     $
10,475    
3,498    

218,794     $
—      
—      

—     $
10,475      
3,498      

577,728    
18,996    
145,312    
62,864    

—      
—      
—      
—      

577,728      
18,996      
145,312      
62,864      

40,467    
1,078,134     $

40,467    
1,078,134     $

40,467      
259,261     $

—      
818,873     $

—  
—  
—  

—  
—  
—  
—  

—  
—  

9,000     $
9,300    
6,025    
6,438    
30,763     $

F-20

9,000     $
9,300    
6,025    
6,438    
30,763     $

—     $
—      
—      
—      
—     $

—     $
—      
—      
—      
—     $

9,000  
9,300  
6,025  
6,438  
30,763  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
     
     
   
 
     
     
     
     
   
 
 
 
 
 
 
 
 
 
 
     
     
     
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
     
     
   
 
 
 
 
  
 
     
     
     
     
   
 
     
     
     
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
The following tables set forth the fair value of the Company’s financial assets and liabilities by level within the fair value hierarchy at December 31, 2021 
(in thousands): 

Assets

Cash equivalents:

Money market funds
Commercial paper
Corporate notes
Marketable securities:
Commercial paper
Corporate notes

Equity securities included in marketable securities:

Corporate equity securities

Total assets

Liabilities

Success payment liability – Harvard
Success payment liability – Broad Institute
Contingent consideration liability – Technology
Contingent consideration liability – Product

Total liabilities

Carrying
amount

Fair
value

Level 1

Level 2

Level 3

  $

  $

  $

  $

540,094     $
13,997    
5,903    

540,094     $
13,997    
5,903    

540,094     $
—      
—      

—     $
13,997      
5,903      

368,743    
16,743    

368,743    
16,743    

—      
—      

368,743      
16,743      

20,167    
965,647     $

20,167    
965,647     $

20,167      
560,261     $

—      
405,386     $

—  
—  
—  

—  
—  

—  
—  

21,000     $
21,200    
24,359    
7,008    
73,567     $

21,000     $
21,200    
24,359    
7,008    
73,567     $

—     $
—      
—      
—      
—     $

—     $
—      
—      
—      
—     $

21,000  
21,200  
24,359  
7,008  
73,567  

Cash equivalents – Money market funds included within cash equivalents are classified within Level 1 of the fair value hierarchy because they are valued 
using quoted market prices in active markets. Commercial paper and corporate notes are classified within Level 2 of the fair value hierarchy because 
pricing inputs are other than quoted prices in active markets, which are either directly or indirectly observable as of the reporting date, and fair value is 
determined through using models or other valuation methodologies.

Marketable securities – Marketable securities, excluding corporate equity securities, are classified within Level 2 of the fair value hierarchy because 
pricing inputs are other than quoted prices in active markets, which are either directly or indirectly observable as of the reporting date, and fair value is 
determined using models or other valuation methodologies. 

During the years ended December 31, 2022 and 2021, the Company held an investment in Verve consisting of shares of Verve’s common and preferred 
stock. Prior to Verve's initial public offering in June 2021, the Company valued such investment based on the cost of the equity securities adjusted for any 
observable market transactions. Following Verve's initial public offering, the equity securities have a readily determinable fair value. As of December 31, 
2022, the Company owned 546,970 shares of Verve's common stock, the value of which is included in marketable securities in the consolidated balance 
sheet. The Company recorded the investment at fair value of $10.6 million as of December 31, 2022 and recognized $9.6 million of other expense during 
the twelve months ended December 31, 2022 associated with changes in the fair value of Verve's common stock.

In October 2022, Prime completed an initial public offering of its common stock. In connection with Prime's initial public offering, Prime effected a one-
for-3.1088 reverse stock split. As of December 31, 2022 the Company owned 1,608,337 shares of Prime's common stock valued at $29.9 million as of 
December 31, 2022 and recognized $29.8 million of other income during the twelve months ended December 31, 2022 associated with changes in the fair 
value of Prime's common stock. 

The following table summarizes other income (expense) incurred due to changes in the fair value of corporate equity securities held (in thousands):

Other income (expense)

2022

Years Ended December 31,
2021

2020

  $

20,200     $

17,690     $

517  

Pursuant to ASU No. 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities, the Company records changes in the fair value 
of its investments in equity securities to other income (expense), in the Company’s consolidated statements of operations.

F-21

 
 
 
 
 
   
   
   
   
 
 
     
     
     
     
   
 
     
     
     
     
   
 
 
 
 
 
 
 
 
 
     
     
     
     
   
 
 
 
 
 
 
 
 
 
     
     
     
     
   
 
 
 
 
  
 
     
     
     
     
   
 
     
     
     
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
Success Payment Liability – As discussed further in Note 10, License agreements, the Company is required to make payments to Harvard and Broad 
Institute based upon the achievement of specified multiples of the initial weighted average value of the Company’s Series A Preferred or, subsequent to the 
IPO, the market value of the Company's common stock, at specified valuation dates. The Company’s liability for the share-based success payments under 
the Harvard and Broad License Agreements are carried at fair value. To determine the estimated fair value of the success payment liability, the Company 
uses a Monte Carlo simulation methodology, which models the future movement of stock prices based on several key variables.

The following variables were incorporated in the calculation of the estimated fair value of the Harvard and Broad Institute success payment liabilities:

Fair value of common stock (per share)
Expected volatility
Expected term (years)

Harvard

Broad Institute

December 31,
2022

December 31,
2021

December 31,
2022

December 31,
2021

  $

39.11     $
82 %   

79.69     $
76 %   

39.11     $
82 %   

0.08-6.49    

0.10-7.49    

0.08-7.36    

79.69  

76 %
0.10-8.36  

The computation of expected volatility was estimated using the Company's historical volatility along with available information about the historical 
volatility of stocks of similar publicly traded companies for a period matching the expected term assumption. In addition, the Company incorporated the 
estimated number, timing, and probability of valuation measurement dates in the calculation of the success payment liability. 

The following table reconciles the change in the fair value of success payment liabilities based on Level 3 inputs (in thousands):

Balance at December 31, 2020

Payments
Change in fair value

Balance at December 31, 2021

Change in fair value

Balance at December 31, 2022

Harvard

Broad

Total

35,500     $
(15,000 )  
500    
21,000     $
(12,000 )  

9,000     $

35,700     $
(15,000 )  
500    
21,200     $
(11,900 )  

9,300     $

71,200  
(30,000 )
1,000  
42,200  
(23,900 )
18,300  

  $

  $

  $

Contingent consideration liabilities – As discussed further in Note 9, Guide acquisition, under the Guide Merger Agreement, Guide’s former stockholders 
and optionholders are eligible to receive up to an additional $100.0 million in technology milestone payments and $220.0 million in product milestone 
payments, payable in the Company’s common stock valued using the volume-weighted average price of the Company’s stock over the ten-day trading 
period ending two trading days prior to the date on which the applicable milestone is achieved. As these milestones are payable in the Company’s common 
stock, the milestone payments result in liability classification under ASC 480, Distinguishing Liabilities from Equity. These contingent consideration 
liabilities are carried at fair value which was estimated by applying a probability-based model, which utilized inputs based on timing of achievement that 
were unobservable in the market. These contingent consideration liabilities are classified within Level 3 of the fair value hierarchy.

The following variables were incorporated in the calculation of the estimated fair value of the contingent consideration liabilities:

Discount Rate
Probability of Achievement
Projected Year of Achievement

Technology Milestones

Product Milestones

December 31,
2022

December 31,
2021

December 31,
2022

December 31,
2021

10.00 %   
5-15%    
2024-2025    

7.50 %   

10-75%    
2022-2023    

10.00 %   
2-15%    
2025-2030    

7.50 %
2-15%  
2023-2029  

The following table reconciles the change in fair value of the contingent consideration liabilities based on level 3 inputs (in thousands):

Balance at December 31, 2021

Change in fair value

Balance at December 31, 2022

Technology 
Milestones

    Product Milestones

Total

  $

  $

24,359     $
(18,334 )  

6,025     $

7,008     $
(570 )  
6,438     $

31,367  
(18,904 )
12,463  

F-22

 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
   
 
   
 
 
 
 
   
 
 
 
 
 
 
 
 
 
5. Marketable securities

The following table summarizes the Company’s marketable securities held at December 31, 2022 (in thousands):

Commercial paper
Corporate notes
U.S. Treasury securities
U.S. Government securities
Corporate equity securities

Total

Commercial paper
Corporate notes
Corporate equity securities

Total

  Amortized Cost
  $

Gross
Unrealized
Gains

Gross
Unrealized
Losses

Fair Value

72     $
—      
—      
13      
—      
85     $

(1,157 )   $
(37 )    
(958 )    
(363 )    
—      
(2,515 )   $

577,728  
18,996  
145,312  
62,864  
40,467  
845,367  

578,813     $
19,033    
146,270    
63,214    
40,467    
847,797     $

  Amortized Cost
  $

368,778     $
16,758    
20,167    
405,703     $

Gross
Unrealized
Gains

Gross
Unrealized
Losses

32     $
—      
—      
32     $

(67 )   $
(15 )    
—      
(82 )   $

Fair Value

368,743  
16,743  
20,167  
405,653  

  $

  $

The following table summarizes the Company’s marketable securities held at December 31, 2021 (in thousands):

The amortized cost of marketable securities is adjusted for amortization of premiums and accretion of discounts to maturity. At December 31, 2022, the 
balance in accumulated other comprehensive (loss) income was comprised solely of activity related to marketable securities. There were no realized gains 
or losses recognized on the sale or maturity of marketable securities for the years ended December 31, 2022, 2021 and 2020 and, as a result, the Company 
did not reclassify any amounts out of accumulated other comprehensive (loss) income for the same periods.

The Company holds debt securities of companies with high credit quality and has determined that there was no material change in the credit risk of any of 
its debt securities. The contractual maturity dates of all the investments are less than one year.

6. Accrued expenses and other current liabilities

Accrued expenses and other current liabilities consist of the following (in thousands):

Employee compensation and related benefits
Professional fees
Process development and manufacturing costs
Research costs
Other

Total

December 31,

2022

2021

  $

  $

19,122     $
6,751    
5,080    
4,844    
12,262    
48,059     $

11,661  
3,330  
3,833  
3,133  
6,964  
28,921  

The Company received correspondence from a research institution regarding a confidentiality agreement between such institution and the Company. The 
confidentiality agreement related to certain technology that the Company evaluated for development in connection with certain of its programs. The 
correspondence alleges that the Company breached the terms of the confidentiality agreement, misappropriated trade secret and other confidential 
information of such institution, engaged in unfair and deceptive trade practices, and was unjustly enriched in connection with developing its therapeutics, 
including BEAM-102 and the Company’s Alpha-1 Antitrypsin Deficiency therapeutic candidate (which the Company now refers to as BEAM-302). The 
research institution claims that it is entitled to monetary damages (including damages for the apportioned value of the Company and enhanced damages for 
an alleged willful violation) and certain ongoing royalty and/or milestone payments related to the technology that is the subject of the alleged breaches of 
contract, among other possible remedies. 

As of December 31, 2022, the Company has accrued a $3.4 million liability equal to an amount the Company offered to resolve the dispute. The settlement 
proposal was rejected by the research institution. No complaint has been filed, and the Company continues to discuss the matter with the research 
institution. Although it may do so, the Company has not determined to make a further offer and believes that it is unable at this time to provide any estimate 
of a reasonably possible loss in excess of the amount offered. The ultimate resolution of this matter could result in an outcome that is materially different 
from the amount accrued as of December 31, 2022.

F-23

 
 
 
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
7. Leases

Operating leases 

The Company’s operating leases are as follows:

•

•

•

•

•

A February 2018 lease for 38,203 square feet of office and laboratory space, which commenced in March 2018 and terminates in September 
2028. The lease is subject to fixed-rate rent escalations and provided for $6.1 million in tenant improvements and a term extension option, 
which is not reasonably certain of exercise.

An October 2018 lease for laboratory space as amended, which commenced in April 2019 and terminates in December 2025. The amended 
lease is subject to fixed-rate rent escalations and provides an option to extend the lease for two additional two-year periods through 
December 31, 2029, which are not reasonably certain of being exercised. Through December 31, 2022, the Company has recorded ROU 
assets and lease liabilities of $14.1 million and $14.0 million related to this lease. 

An April 2019 lease for office and laboratory space that was built over the course of 2020 and 2021. Pursuant to the terms of the original 
lease agreement, the first phase of the lease commenced in October 2020 (rent payments for the first phase began in August 2021) and the 
second phase of the lease commenced in January 2021 (rent payments for the second phase began in February 2022). The lease is subject to 
fixed-rate rent escalations and provides for $23.4 million in tenant improvements and the option to extend the lease for two terms of five 
years each, which are not reasonably certain of exercise. The Company determined that it is the accounting owner of all tenant 
improvements. The Company maintains a security deposit of $9.7 million in the form of a letter of credit, which is included in restricted cash 
as of December 31, 2022 and 2021. Upon commencement of the first phase of this lease in October 2020, the Company recorded an 
operating lease ROU asset of $66.8 million and a lease liability of $68.8 million and upon commencement of the second phase of this lease in 
January 2021, the Company recorded an operating lease ROU asset of $22.0 million and a corresponding lease liability of $23.0 million. 
Subsequently, during the second quarter of 2021, the Company amended the rent commencement dates of the first and second phases of this 
lease. Pursuant to the terms of the amendment, the lease will terminate in February 2034, which is 12 years from the amended second phase 
rent commencement date. As a result, the Company recorded an increase in the ROU asset of $0.5 million and lease liability of $0.5 million.

An August 2020 lease for a 100,000 square foot manufacturing facility in Research Triangle Park, North Carolina. Construction of the 
manufacturing facility began in 2020 and the Company began making rent payments in the fourth quarter of 2022. The lease will terminate 
15 years from the rent commencement date, December 2022. The lease is subject to fixed-rate rent escalations and provides for $20.0 million 
in tenant improvements and the option to extend the lease for two terms of five years each, which were not reasonably certain of exercise as 
of December 31, 2022. The Company determined that it is the accounting owner of all tenant improvements under the lease. Upon executing 
the lease in August 2020, the Company made a security deposit of $1.5 million in the form of a letter of credit, which is included in restricted 
cash as of December 31, 2022 and 2021. Upon commencement of this lease in June 2022, the Company recorded an operating lease ROU 
asset of $13.6 million and a lease liability of $30.4 million. The variance between the ROU asset and lease liability recorded relates to $16.8 
million of tenant improvement allowance completed through the lease commencement date. The $16.8 million of tenant improvement 
allowance is presented as an operating cash inflow and investing cash outflow within the Company’s consolidated statements of cash flows. 
The rent payments are subject to adjustment following the determination of the total project costs of the landlord and represent in substance 
fixed payments that are included in the total future minimum lease payments. During the fourth quarter of 2022, the Company substantially 
completed construction of the manufacturing facility.

In August 2021, the Company executed a lease amendment to its April 2019 lease for office and laboratory space in Cambridge, 
Massachusetts to occupy additional space. The term of this lease runs concurrent with the term of the April 2019 lease through February 
2034. The lease is subject to fixed-rate rent escalations and provides for $1.6 million in tenant improvements. The Company determined that 
it is the accounting owner of all tenant improvements. Upon commencement of this lease in December 2022, the Company recorded an 
operating lease ROU asset and lease liability of $5.4 million for this lease in the consolidated balance sheet.

F-24

 
The Company identified and assessed the following estimates in recognizing the operating lease right-of-use asset and corresponding liability:

•

•

•

Expected lease term: The expected lease term includes noncancelable lease periods and, when applicable, periods covered by an option to 
extend the lease if the Company is reasonably certain to exercise that option, as well as periods covered by an option to terminate the lease if 
the Company is reasonably certain not to exercise that option.

Incremental borrowing rate: As the discount rates in the Company’s lease are not implicit, management estimated the incremental borrowing 
rate based on the rate of interest the Company would have to pay to borrow a similar amount on a collateralized basis over a similar term.

Lease and non-lease components: The Company is required to pay fees for operating expenses in addition to monthly base rent for certain 
operating leases (non-lease components). The Company has elected the practical expedient which allows non-lease components to be 
combined with lease components for all asset classes. Variable non-lease components are not included within the lease right-of-use asset and 
lease liability on the consolidated balance sheet, and instead are reflected as expense in the period they are paid.

The following table summarizes operating lease costs as well as sublease income (in thousands):

Operating lease costs
Variable lease costs
Short-term lease costs
Sublease income

Total

The following table summarizes the lease term and discount rate for operating leases: 

Weighted-average remaining lease term (years)
Weighted-average discount rate

2022

December 31,

2021

2020

  $

  $

19,536     $
4,364    
307    
(1,319 )  
22,888     $

18,309   $
2,065    
1,145    
(110 )  
21,409   $

8,415  
929  
—  
—  
9,344  

December 31,

2022

2021

11.0    
7.5 %   

11.1  
7.0 %

The following table summarizes the lease costs included in the measurement of lease liabilities (in thousands):

Operating cash flows used for operating leases
Operating lease liabilities arising from obtaining ROU assets

2022

Years Ended December 31,
2021

2020

  $

19,052     $
41,050    

11,462     $
25,925    

6,911  
74,723  

At December 31, 2022, the future minimum lease payments for the Company’s operating leases for each of the next five years and total thereafter were as 
follows (in thousands):

Years ending December 31,
2023
2024
2025
2026
2027
Thereafter
Undiscounted lease payments
Less: imputed interest
Total operating lease liabilities

Amount

21,576  
24,452  
25,036  
22,221  
22,845  
151,828  
267,958  
(88,953 )
179,005  

  $

F-25

 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
   
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Financing obligations

In July 2019, the Company sold certain equipment to a leasing company for a total of $3.8 million, and, concurrently, entered into a lease agreement with 
the leasing company to lease back the equipment for an annual rent of $1.0 million over a term of four years.

In October 2019, the Company sold additional equipment to the leasing company for a total of $2.4 million and, concurrently, entered into a lease 
agreement with the leasing company to lease back the equipment for an annual rent of $0.7 million over a term of four years.

In February 2020, the Company sold additional equipment to the leasing company for a total of $1.6 million and, concurrently, entered into a lease 
agreement with the leasing company to lease back the equipment for an annual rent of $0.5 million over a term of four years.

In December 2020, the Company sold additional equipment to the leasing company for a total of $1.6 million and, concurrently, entered into a lease 
agreement with the leasing company to lease back the equipment for an annual rent of $0.5 million over a term of four years. 

The equipment leases are being accounted for as financings as the lease terms are for substantially all the remaining economic life of the underlying 
equipment. The Company concluded that control, including the significant risks and rewards of ownership, did not effectively transfer to the buyer-lessor at 
the inception of the sale and leaseback transactions. As a result, the transactions are accounted for as failed sale and leasebacks and result in the recognition 
of financing liabilities.

The future minimum payments related to the equipment financing obligations for each of the next five years were as follows (in thousands):

Years ending December 31,
2023
2024
2025
2026
2027
Total
Less: amounts representing interest at 8.76%
Plus: residual values
Financing obligations

Amount

2,013  
511  
—  
—  
—  
2,524  
(192 )
675  
3,007  

  $

The following table summarizes the breakdown of the principal and interest portions of the equipment financing payments (in thousands): 

Paydown of principal
Payment of interest

8. Equity method investment

Orbital

2022

Years Ended December 31,
2021

2020

  $

2,287     $
376    

  $

2,118  
567  

1,569  
561  

In September 2022, the Company entered into a License and Research Collaboration Agreement, or the Orbital Agreement, with Orbital Therapeutics, Inc., 
or Orbital, a newly formed entity focused on advancing non-viral delivery and RNA technologies (See Note 11, Collaboration and license agreements). In 
exchange for contributing exclusive and non-exclusive licenses and certain services, the Company received a 31.5% fully diluted equity interest in Orbital 
at the time of closing pursuant to a Common Stock Issuance Agreement, or the Orbital Issuance Agreement, as well as certain exclusive and non-exclusive 
licenses from Orbital. As of the closing date Beam held 97.0% of the outstanding common stock of Orbital. As of December 31, 2022, Beam holds 95.8% 
of the outstanding common stock of Orbital. Additionally, certain members of the Company's executive team are providing interim management services to 
Orbital under separate agreements between Orbital and the executives. Orbital is not compensating the Company for the interim management services.

F-26

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
   
 
The Company has significant influence over, but does not control, Orbital through its noncontrolling representation on Orbital’s board of directors and the 
Company’s equity interest in Orbital. The Company determined that Orbital is a variable interest entity because it does not have sufficient equity at risk to 
finance its operations without additional subordinated financial support. The Company is not the primary beneficiary as it does not have the power to direct 
activities that most significantly impact Orbital’s economic performance. Accordingly, the Company does not consolidate the financial statements of 
Orbital and accounts for its investment using the equity method of accounting.

As of the closing date, the fair value of the Company’s investment in Orbital was $25.5 million, which represents the fair value of the common stock 
received under the Orbital Issuance Agreement. The fair value of the Orbital common stock was determined by management with the assistance of a third-
party valuation specialist. In determining the fair value of the Company’s investment, the valuation specialist used an option pricing model backsolve 
approach based on Orbital's most recent funding of preferred stock. The valuation requires the input of certain subjective assumptions. The key 
assumptions used in the option pricing model, which are level 3 inputs, include the anticipated holding period to an exit and liquidity event, the volatility of 
market participants (68%) and the discount for lack of marketability (43%). The Company adjusts the carrying value of its investment in Orbital by its 
proportionate share of Orbital’s net loss based on the Company’s share of Orbital’s outstanding common stock and in-substance common stock. 

At the date of the investment, a basis difference was identified as the carrying value of the Company’s investment in Orbital exceeded the Company’s 
proportionate share of the underlying net assets in Orbital. The Company concluded that the basis difference was primarily attributable to Orbital’s IPR&D 
assets. As Orbital did not meet the definition of a business due to substantially all of the estimated fair value of the gross assets being concentrated in the 
group of similar IPR&D assets, the basis difference attributable to the IPR&D with no alternative future use was immediately expensed as of the date of the 
investment. The Company’s proportionate share of the basis difference exceeded its carrying value of the equity method investment in Orbital and the 
equity investment balance was reduced to zero. There is no commitment for the Company to provide financial support to Orbital, and therefore the carrying 
value of the equity method investment will not be reduced below zero. For the twelve months ended December 31, 2022, the Company recognized a loss 
from its equity method investment of $25.5 million in association with the basis difference charge in the Company’s consolidated statements of operations. 

The maximum exposure to loss is limited to the Company’s equity investment in Orbital, which has a carrying value of zero at December 31, 2022. To date 
the Company has not received any dividends from Orbital. 

9. Guide acquisition

On February 23, 2021, the Company entered into the Guide Merger Agreement. Under the Guide Merger Agreement, the Company paid Guide’s former 
stockholders and optionholders upfront consideration in an aggregate amount of $120.0 million, excluding customary purchase price adjustments and 
closing costs, in shares of the Company’s common stock, based upon the volume-weighted average price of the Company’s stock over the ten trading-day 
period ending on February 19, 2021. Pursuant to the Guide Merger Agreement, the Company acquired all of the issued and outstanding shares of Guide. 
The Company issued a total of 1,087,153 shares of its common stock valued at $120.0 million in connection with the upfront payment to Guide’s former 
stockholders and optionholders. The Guide transaction resulted in the acquisition of certain know-how and intellectual property assets related to Guide’s 
proprietary in vivo LNP screening technology and its library of lipids and lipid nanoparticle formulations identified using the screening technology. 
Management determined that the acquired assets do not meet the definition of a business pursuant to ASC 805, as substantially all of the fair value of the 
acquired assets is concentrated into one identifiable asset, the LNP screening technology and associated lipid library. As of the date of closing of the 
transactions contemplated by the Guide Merger Agreement, or the Guide Merger Agreement Date, the asset acquired had no alternative future use and had 
not reached a stage of technological feasibility. As a result, all share-based and cash payment obligations have been recorded as research and development 
expense in the consolidated statements of operations and other comprehensive loss in the amount of $155.0 million. The total transaction price was 
allocated to the assets acquired and liabilities assumed on a relative fair value basis.

In addition, Guide’s former stockholders and optionholders are eligible to receive up to an additional $100.0 million in technology milestone payments and 
$220.0 million in product milestone payments, payable in the Company’s common stock valued using the volume-weighted average price of the 
Company’s stock over the ten trading-day period ending two trading days prior to the date on which the applicable milestone is achieved.

The Company determined that all future technology and product milestone payments are classified as contingent consideration liabilities under ASC 480 
and therefore the Company recorded a liability for these milestone payments as of the Guide Merger Agreement Date at fair value of $36.5 million. These 
contingent consideration liabilities are remeasured at fair value each financial reporting period, with the resulting impact reflected in the Company’s 
consolidated statements of operations and other comprehensive loss, presented within other income (expense).

F-27

 
The transaction price was determined and allocated as follows (in thousands):

Transaction price
Fair value of equity instruments issued
Technology and product contingent consideration liabilities
Transaction costs

Total transaction price
Transaction price allocated
In-process research and development
Cash acquired
Prepaid expenses and other assets
Property and equipment
Assembled workforce
Other liabilities assumed

Total transaction price

10. License agreements

Harvard license agreement 

  $

  $

  $

  $

120,032    
36,513    
2,531    
159,076    

154,953    
3,151    
264    
1,835    
300    
(1,427 )  
159,076    

In June 2017, the Company entered into the Harvard License Agreement for certain base editing technology pursuant to which the Company received an 
exclusive, worldwide, sublicensable, royalty-bearing license under specified patent rights to develop and commercialize licensed products and a 
nonexclusive, worldwide, sublicensable, royalty-bearing license under certain patent rights to research and develop licensed products. The Company agreed 
to use commercially reasonable efforts to develop licensed products in accordance with the development plan, to introduce any licensed products that gain 
regulatory approval into the commercial market, to market licensed products that have gained regulatory approval following such introduction into the 
market, and to make licensed products that have gained regulatory approval reasonably available to the public. The license term extends until the later of 
the expiration of (i) the last to expire licensed patent covering a licensed product, (ii) the period of exclusivity associated with a licensed product or (iii) a 
certain period after the first commercial sale of a licensed product, unless terminated earlier by either party under certain provisions.

As partial consideration for the rights granted under the Harvard License Agreement, the Company issued to Harvard 101,363 shares of the Company’s 
common stock. Additional consideration under the Harvard License Agreement included an Anti-Dilution Issuance Right, which was settled during the 
year ended December 31, 2018, Financing Milestone Payments related to Series A Preferred and Series B Preferred financings, which were paid and settled 
in the year ended December 31, 2019, and Success Payments, which are further described below. The Anti-Dilution Issuance Right and Financing 
Milestone Payments related to Series A Preferred and Series B Preferred financings were both expensed in the year 2018 and prior.

Success Payments – Under the Harvard License Agreement, Harvard is entitled to receive success payments, in cash or shares of Company stock, 
determined based upon the achievement of specified multiples of the initial weighted average value of the Company’s Series A Preferred at specified 
valuation dates. The success payments range from $5.0 million to a maximum of $105.0 million and have valuation multiples that range from 5 times to 40 
times the initial weighted average value of the Series A Preferred. Subsequent to the Company’s February 2020 IPO, the amount of success payments is 
based on the market value of the Company's common stock.

The Company is required to make success payments to Harvard during a period of time, or the Harvard Success Payment Period, which has been 
determined to be the later of (1) the ninth anniversary of the Harvard License Agreement or (2) the earlier of (a) the twelfth anniversary of the Harvard 
License Agreement and (b) the third anniversary of the first date on which a licensed product receives regulatory approval in the United States. During the 
Harvard Success Payment Period, the Company will perform a calculation of any amounts owed to Harvard on each rolling 90-day period, commencing 
one year after the Company’s IPO. 

In May 2021, the first success payment measurement occurred and amounts due to Harvard were calculated to be $15.0 million. The Company elected to 
make the payment in shares of the Company’s common stock and issued 174,825 shares of the Company’s common stock to settle this liability on June 10, 
2021. The Company may owe Harvard success payments of up to an additional $90.0 million.

The following table summarizes the Company’s success payment liability for Harvard (in thousands):

Harvard success payment liability

F-28

December 31,

2022

2021

  $

9,000     $

21,000  

 
 
 
     
 
 
 
 
 
     
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
The following table summarizes the expense resulting from the change in the fair value of the success payment liability for Harvard (in thousands):

Change in fair value of Harvard success payment liability

  $

(12,000 )   $

500     $

31,600  

2022

Years Ended December 31,
2021

2020

Other Payments – The Company agreed to pay Harvard an annual license maintenance fee ranging from low-to-mid five figures to low six figures, 
depending on the calendar year. The Company is responsible for the payment of certain patent prosecution and maintenance costs incurred by Harvard 
related to licensed patents. To the extent achieved, the Company is obligated to pay up to an aggregate of $75.9 million in product development and 
regulatory approval milestones, or Harvard Product Milestones. If the Company completes a change of control during the term of the Harvard License 
Agreement, then certain of the milestone payments would be increased. To the extent there are sales of a licensed product, the Company is required to pay 
low single digit royalties on net sales. The Company is entitled to certain reductions and offsets on these royalties with respect to a licensed product in a 
given country. If the Company sublicenses its rights to develop or commercialize a licensed product under the Harvard License Agreement to a third party 
and the Company receives non-royalty sublicense income, then Harvard is entitled to a percentage of such consideration, ranging from the high single 
digits to low double digits depending on the date in which such sublicense agreement is executed and the stage of development of the Company’s licensed 
products at such time. 

The annual maintenance fees will be recorded as an expense on an annual basis based on the stated amount for the applicable year. Annual patent costs are 
expensed as incurred. Upon determination that a Harvard Product Milestone is probable to occur, the amount due will be recorded as research and 
development expense. The Company will monitor the Harvard Product Milestone payments for this arrangement on an ongoing basis. The Company 
incurred $0.2 million and $0.1 million of regulatory milestone expense during the twelve months ended December 31, 2022 and 2021, respectively. No 
expense was recorded for these milestones for the year ended December 31, 2020.

To the extent products are commercialized under the Harvard License Agreement, the Company will accrue royalty expense and sublicense nonroyalty 
payments, as applicable, for the amount it is obligated to pay, with adjustments as sales are made. The Company incurred $2.7 million and $33.7 million of 
expense related to non-royalty sublicense fees owed to Harvard for the twelve months ended December 31, 2022 and 2021, respectively. There was no 
expense related to Harvard non-royalty sublicense fees during the year ended December 31, 2020.

Broad license agreement 

In May 2018, the Broad License Agreement was entered into with Broad Institute for certain RNA base editing technology including an RNA editor 
platform. Under the Broad License Agreement, Broad Institute granted exclusive and non-exclusive worldwide, sublicensable, royalty-bearing licenses 
under specified patent rights to develop and commercialize licensed product and a nonexclusive, worldwide, sublicensable, royalty-bearing license under 
certain patent rights to research and develop licensed products. Under the agreement the Company shall use commercially reasonable efforts to develop 
licensed products in accordance with the development plan, to introduce any licensed products that gain regulatory approval into the commercial market, to 
market licensed products that have gained regulatory approval following such introduction into the market, and to make licensed products that have gained 
regulatory approval reasonably available to the public. The license term extends until the later of the expiration of (i) the last to expire licensed patent 
covering a licensed product, (ii) the period of regulatory exclusivity associated with a licensed product or (iii) a certain period after the first commercial 
sale of a licensed product unless terminated earlier by either party under certain provisions. 

Additional consideration under the Broad License Agreement included an Anti-Dilution Issuance Right, which was paid and settled during the year ended 
December 31, 2018, Financing Milestone Payments related to Series A Preferred and Series B Preferred financings, which were settled in the year ended 
December 31, 2019, and Success Payments, which are further described below. The Anti-Dilution Issuance Right and Financing Milestone Payments 
related to Series A Preferred and Series B Preferred financings were both expensed in the year 2018. 

Success Payments – Under the Broad License Agreement, Broad Institute is entitled to receive success payments, in cash or shares of Company common 
stock, determined based upon the achievement of specified multiples of the initial weighted average value of the Series A Preferred at specified valuation 
dates. The success payments range from $5.0 million to a maximum of $105.0 million and have valuation multiples that range from 5 times to 40 times the 
initial weighted average value of the Series A Preferred. Subsequent to the February 2020 IPO, the amount of success payments is based on the market 
value of the Company’s common stock. The Company is required to make success payments to Broad Institute during a period of time, or the Broad 
Success Payment Period, which has been determined to be the earliest of (1) the twelfth anniversary of the Broad License Agreement or (2) the third 
anniversary of the first date on which a licensed product receives regulatory approval in the United States. During the Broad Success Payment Period, the 
Company will perform a calculation of any amounts owed to Broad Institute on each rolling 90-day period, commencing one year after the Company’s 
IPO. 

F-29

 
 
 
 
 
 
   
   
 
 
In May 2021, the first success payment measurement occurred and amounts due to Broad Institute were calculated to be $15.0 million. The Company 
elected to make the payment in shares of the Company’s common stock and issued 174,825 shares of the Company’s common stock to settle this liability 
on June 10, 2021. The Company may owe Broad Institute success payments of up to an additional $90.0 million. As of December 31, 2022, no success 
payments were due to Broad Institute. 

The following table summarizes the Company’s success payment liability for Broad Institute (in thousands):

Broad Institute success payment liability

December 31,

2022

2021

  $

9,300     $

21,200  

The following table summarizes the expense resulting from the change in the fair value of the success payment liability for Broad Institute (in thousands):

Change in fair value of Broad Institute success payment liability

  $

(11,900 )   $

500     $

31,800  

2022

Years Ended December 31,
2021

2020

Other Payments – The Company agreed to pay Broad Institute an annual license maintenance fee ranging from low-to-mid five figures to low six figures, 
depending on the particular calendar year. The Company is responsible for the payment of certain patent prosecution and maintenance costs incurred by 
Broad Institute related to licensed patents. To the extent achieved, the Company is obligated to pay up to an aggregate of $75.9 million in product 
development and regulatory approval milestones, or Broad Product Milestones. If the Company completes a change of control during the term of the Broad 
License Agreement, then certain of the milestone payments would be increased. To the extent there are commercial sales of a licensed product, the 
Company is required to pay low single digit royalties on net sales. The Company is entitled to certain reductions and offsets on these royalties with respect 
to a licensed product in a given country. If the Company sublicenses its rights to develop or commercialize a licensed product under the Broad License 
Agreement to a third party and the Company receives non-royalty sublicense income, then Broad Institute is entitled to a percentage of such consideration, 
ranging from the high single digits to low double digits depending on the date in which such sublicense agreement is executed and the stage of 
development of the Company’s licensed products at such time.

The annual maintenance fees will be recorded as an expense on an annual basis based on the stated amount for the applicable year. Annual patent costs will 
be expensed as incurred. Upon determination that a Broad Product Milestone is probable to occur, the amount due will be recorded as research and 
development expense. The Company will monitor the Broad Product Milestone payments for this arrangement on an ongoing basis. The triggering of these 
milestone payments was not considered probable as of the acquisition date, and no expense has been recorded for these milestones during the years ended 
December 31, 2022, 2021 and 2020. 

To the extent products are commercialized under the Broad License Agreement, the Company will accrue royalty expense and sublicense nonroyalty 
payments, as applicable, for the amount it is obligated to pay, with adjustments as sales are made. The Company paid $6.1 million of non-royalty 
sublicense fees to Broad Institute during the twelve months ended December 31, 2022 related to non-royalty sublicense fee expense incurred during the 
second half of 2021. The Company recorded no expense related to non-royalty sublicense fees owed to the Broad Institute during the twelve months ended 
December 31, 2022 or 2020. 

F-30

 
 
 
 
 
 
   
 
 
 
 
 
 
   
   
 
 
 
Editas license agreement 

In May 2018, the Company entered into a license agreement, or the Editas License Agreement, with Editas Medicine, Inc., or Editas. Pursuant to the Editas 
License Agreement, Editas granted to the Company licenses and options to acquire licenses to certain intellectual property rights owned or controlled by 
Editas, for specified uses. More specifically, Editas granted to the Company a worldwide, exclusive, sublicensable, license (subject to certain exceptions 
and conditions) under certain intellectual property controlled by Editas for the use of base editing therapies for the treatment of any field of human diseases 
and conditions, subject to certain exceptions, or the Beam Field, and the licenses granted or to be granted under the Editas License Agreement, or the Editas 
Development and Commercialization License. Additionally, Editas granted to the Company a royalty-free, non-exclusive license under certain intellectual 
property owned or controlled by Editas to perform research activities in the Beam Field, or the Editas Research License. Editas provided the Company with 
an exclusive option to obtain an Editas Development and Commercialization License to three additional groups of intellectual property owned or controlled 
by Editas, on a group by group basis, during the specified option period, subject to certain exceptions. Pursuant to the Editas License Agreement, the 
Company will use commercially reasonable efforts to develop a product that includes the rights licensed to the Company within a specified period of time 
and to commercialize any such products that have received regulatory approval in certain specified countries.

Additional consideration will be due to Editas if the Company elects to exercise its option to obtain an Editas Development and Commercialization License 
to any of the three categories of intellectual property underlying the Editas Research License, for a fee ranging from a mid-teen million dollar amount to a 
low to mid-eight digit dollar amount per group, depending on the timing of the option exercise. Additionally, the Company is required to reimburse Editas 
for certain payments Editas may be obligated to make under existing Editas license agreements related to the intellectual property being licensed to the 
Company, including (i) development, regulatory and commercial milestone payments and certain sublicense income payments due as a result of the Editas 
License Agreement and (ii) a percentage of the annual maintenance fees and patent fees due to certain of the Editas’ licensors. In addition, to the extent any 
products are commercialized under an Editas Development and Commercialization License, the Company would be required to make royalty payments 
equivalent to the royalties that would be due from Editas to any applicable licensors of Editas related to the sales of such licensed products, plus an 
additional tiered low- to mid-single digit royalty, depending on whether such licensed product is covered by an Editas-owned patent.

The license rights and option rights granted by Editas to the Company are subject to the terms and conditions of the underlying license agreements that 
Editas is a party to and under which Editas licensed rights or option rights to the Company and the termination of such in-licenses, as applicable. Unless 
earlier terminated by either party pursuant to the terms of the agreement, the Editas License Agreement will continue in full force and effect and will expire 
on a licensed product-by licensed product and country-by-country basis upon the later of (i) the last-to-expire royalty term under any applicable 
institutional license to Editas and (ii) the date at which such product is no longer covered by a valid claim of a licensed Editas-owned patent in such 
country. The Company has the right, at its sole discretion, at any time to terminate the Editas License Agreement in its entirety or on a group-by-group of 
intellectual property basis, upon ninety days written notice to Editas. Upon termination of the Editas License Agreement, all rights and licenses granted by 
Editas to the Company (including the rights to exercise options and obtain such licenses) will immediately terminate and patents within a group of patents 
will no longer be deemed licensed patents. Expiration or termination of the Editas License Agreement for any reason does not release either party of any 
obligation or liability which had accrued, or which is attributable to a period prior to such expiration or termination.

The option exercise fees under the agreement will be recorded as research and development expense, if and when the Company exercises such options. To 
date, no options have been exercised. The annual maintenance fees are recorded as an expense on an annual basis based on the stated amount for the 
applicable year. Annual patent costs are expensed as incurred. In addition, the Company is required to make certain development, regulatory and 
commercial milestone payments to Editas upon the achievement of specified milestones. During each of the years ended December 31, 2022 and 2021, the 
Company recognized $0.1 million of expense as it determined that it owed a regulatory milestone payment to Editas under the License Agreement. The 
Company did not recognize any expense under the Editas License Agreement during the year ended December 31, 2020. To the extent applicable, 
sublicense income payments will be accrued for the amount the Company is obligated to pay under each applicable in-license as amounts are due to Editas. 
Lastly, to the extent products are commercialized under the Editas License agreement, the Company will accrue royalty expense for the amount it is 
obligated to pay, with adjustments as sales are made.

F-31

 
Bio Palette license agreement

In March 2019, the Company entered into a license agreement with Bio Palette pursuant to which the Company received an exclusive (even as to Bio 
Palette), sublicensable license under certain patent rights related to base editing owned or controlled by Bio Palette to exploit products for the treatment of 
human disease throughout the world, but excluding products in the microbiome field in Asia (the “Bio Palette License Agreement”). In addition, the 
Company granted Bio Palette an exclusive (even as to the Company) license under certain patent rights related to base editing and gene editing owned or 
controlled by the Company to exploit products in the microbiome field in Asia. Each party to the agreement retains non-exclusive rights to develop and 
manufacture products in the microbiome field worldwide for the sole purpose of exploiting those products in its own territory. Each party agrees to certain 
coordination obligations in the microbiome field if either party determines not to exploit their rights in such field. Unless earlier terminated, the Bio Palette 
License Agreement will expire on a licensed product-by-licensed product and country-by-country basis upon the expiration of the applicable royalty term 
for each such licensed product and country. To the extent products are commercialized under the Bio Palette License Agreement, the Company will accrue 
royalty expense for the amount it is obligated to pay, with adjustments as sales are made.

The Company also agreed to pay a royalty at a fraction of a percent on net sales of products that are covered by the patents licensed by Bio Palette to the 
Company, and Bio Palette agreed to pay a royalty at a fraction of a percent on net sales of products that are covered by the patents licensed by the Company 
to Bio Palette. The royalty term for a product in a country will terminate on the later of the expiration of (i) patent-based exclusivity with respect to such 
licensed product in such country or (ii) regulatory exclusivity with respect to such licensed product in such country. 

Upon the execution of the Bio Palette License Agreement, the Company paid Bio Palette an upfront fee of $0.5 million and issued to Bio Palette 16,725 
shares of its common stock valued at $0.1 million, which were recorded as research and development expense for the year ended December 31, 2019. Upon 
the issuance of a certain Bio Palette patent in the United States in June 2020, the Company made a milestone payment of $2.0 million and, in July 2020, 
issued to Bio Palette 175,000 shares of its common stock valued at $0.3 million, which were recognized as research and development expense. The fair 
value of the common stock issued to Bio Palette under the Bio Palette License Agreement was measured at the inception of arrangement and expensed 
when the issuance of shares became probable.

Management concluded that the licenses acquired from each transaction above did not meet the accounting definition of a business as inputs, but no 
processes or outputs were acquired with the licenses, and the licensed technology had not achieved technological feasibility. As the inputs that were 
acquired along with the licenses do not constitute a “business,” the transactions have been accounted as asset acquisitions. As of the date of each License 
Agreement, the assets acquired had no alternative future use and the assets had not reached a stage of technological feasibility. As a result, all share-based 
and cash payment obligations have been recorded as research and development expense in the accompanying consolidated statements of operations and 
other comprehensive loss.

F-32

 
 
11. Collaboration and license agreements

Orbital

In September 2022, the Company entered into the Orbital Agreement and the Orbital Issuance Agreement with Orbital. Under the terms of the Orbital 
Agreement, the Company will collaborate with Orbital to advance nonviral delivery and RNA technology by providing Orbital with certain proprietary 
materials, a non-exclusive research license to certain RNA technology and nonviral delivery technology controlled by the Company, and by performing 
research and development support services as outlined in a research plan. The Company also granted Orbital an exploitation license to certain RNA 
technology and nonviral delivery technology controlled by the Company. The exploitation license is exclusive in the fields of vaccines and certain protein 
therapeutics and nonexclusive in all other fields other than gene editing and conditioning. The collaboration is managed on an overall basis by a Joint 
Steering Committee, or JSC, comprised of an equal number of representatives from the Company and Orbital.

In exchange for the licenses and services provided by the Company under the Orbital Agreement, the Company received a non-exclusive research license 
to certain RNA technology and nonviral delivery technology controlled by Orbital, and research and development support services as outlined in a research 
plan. Orbital also granted Beam an exploitation license to certain RNA technology and nonviral delivery technology controlled by Orbital. The exploitation 
license is exclusive in the fields of gene editing and conditioning and nonexclusive in all other fields other than vaccines and certain protein therapeutics. 
The Company also received 75 million shares of Orbital’s common stock at closing, which represented a 31.5% fully diluted equity interest in Orbital. The 
Company accounts for its investment in Orbital under the equity method of accounting. Refer to Note 8 for further details.

The research plan has a term of three years and can be extended for unspecified periods upon mutual agreement between the Company and Orbital. The 
exploitation licenses are exclusive for an initial research term of three years, which may be extended for up to two successive one-year periods by mutual 
agreement between the Company and Orbital. Either party may terminate the licenses granted to it under the Orbital Agreement for convenience on a 
product-by-product basis at any time by providing 90 days’ prior written notice.

The Company accounts for the Orbital Agreement under ASC 606 as it includes a customer-vendor relationship as defined under ASC 606 and meets the 
criteria to be considered a contract.

The overall transaction price as of the inception of the contract was determined to be $25.5 million, which represents the fair value of the Company’s equity 
interest in Orbital’s common stock at inception. See Note 8 for the determination of the fair value of the Company’s investment. There is no variable 
consideration included in the transaction price at inception. 

The Company concluded that the research and exploitation licenses are not distinct from the other promises in the Orbital Agreement, and as such the 
Company has determined that the licenses combined with the research and development services, know-how transfers, committee participation and 
materials transfer represent a performance obligation. The Company recognizes revenue associated with the Orbital performance obligation over time as it 
is satisfied during the term of the agreement, which is three years. The Company recognized $2.1 million of revenue during the year ended December 31, 
2022. As of December 31, 2022, there was $8.5 million and $14.9 million of current and long-term deferred revenue, respectively, related to the Orbital 
Agreement.

Pfizer

In December 2021, the Company entered into a research collaboration agreement, or the Pfizer Agreement, with Pfizer Inc., or Pfizer, focused on the use of 
certain of the Company’s base editing technology to develop in vivo therapies for rare genetic diseases of the liver, muscle, and central nervous system. 
Under the terms of the Pfizer Agreement, the Company will conduct all research activities through development candidate selection for three base editing 
programs that target specific genes corresponding to specific diseases that are the subject of such programs. Pfizer will have exclusive rights to license each 
of the three programs at no additional cost, each an Opt-In Right, and will assume responsibility for subsequent development and commercialization. At the 
end of the Phase 1/2 clinical trials, the Company may elect to enter into a global co-development and co-commercialization agreement with Pfizer with 
respect to one program licensed under the collaboration for an option exercise fee equal to a percentage of the applicable development costs incurred by 
Pfizer, or the Participation Election. In the event the Company elects to exercise its Participation Election, upon the payment of its option exercise fee, 
Pfizer and the Company would share net profits as well as development and commercialization costs in a 65%/35% (Pfizer/Company) split for such 
program. The research collaboration is managed on an overall basis by a Joint Research Committee, or JRC, formed by an equal number of representatives 
from the Company and Pfizer.

At the inception of the Pfizer Agreement, the Company was entitled to receive a nonrefundable upfront payment of $300.0 million in consideration for the 
rights granted to Pfizer under the collaboration. Should Pfizer exercise its Opt-In Right for any of the three programs, the Company would be eligible to 
receive development, regulatory, and commercial milestones of up to $350.0 million per program, for potential total consideration of up to $1.35 billion, 
plus royalty payments on global net sales for each licensed program, if any. If Pfizer does not exercise its Opt-In Right for a program, the Company’s rights 
in such program revert to the Company and the Company will be required to pay Pfizer earn-out payments equal to a low single digit percentage of net 
sales earned on such program for a ten-year period, if any. As the $300.0 million upfront fee was not received by the Company as of December 31, 2021, 
the Company recorded a collaboration receivable for $300.0 million with a corresponding deferred revenue liability. The Company received the $300.0 
million upfront payment in January 2022. 

F-33

 
During the collaboration term, Pfizer has a one-time option to substitute a disease that is the subject of a specific program with one pre-defined substitute 
disease. The collaboration has an initial term of four years and may be extended for an additional year on a program-by-program basis. Pfizer may 
terminate the Pfizer Agreement for convenience on any or all of the programs by providing 90 days’ prior written notice.

The Company accounts for the Pfizer Agreement under ASC 606, as it includes a customer-vendor relationship as defined under ASC 606 and meets the 
criteria to be considered a contract. 

The overall transaction price as of the inception of the contract was determined to be $300.0 million, which is comprised entirely of the nonrefundable 
upfront payment. There is no variable consideration included in the transaction price at inception as the future milestone payments are fully constrained and 
the Company is not required to estimate variable consideration for the royalty payments at contract inception. The Company will re-evaluate the transaction 
price in each reporting period.

The Company has concluded that the licenses to its base editing technology, including the exclusive development and commercialization rights, are not 
capable of being distinct from the other performance obligations, and as such the Company has determined that the licenses combined with the other 
research and development services represent performance obligations and no up-front revenue was recognized for the licenses. 

The selling price of each performance obligation was determined based on the Company’s estimated standalone selling price, or the ESSP. The Company 
developed the ESSP for all of the performance obligations included in the Pfizer Agreement by determining the total estimated costs to fulfill each 
performance obligation identified with the objective of determining the price at which it would sell such an item if it were to be sold regularly on a 
standalone basis. The Company allocated the stand-alone selling price to the performance obligations based on the relative standalone selling price method.

The Company recognizes revenue for each performance obligation as it is satisfied during the term of the agreement using an input method. The Company 
allocated the transaction price of $300.0 million to each of the three performance obligations, which includes each of the three base editing programs 
combined with the research and development services, licenses, and exclusive development and commercialization rights. Revenue is recognized using an 
input method based on the actual costs incurred as a percentage of total budgeted costs towards satisfying the performance obligation as this method 
provides the most faithful depiction of the entity’s performance in transferring control of the goods and services promised to Pfizer and represents the 
Company’s best estimate of the period of the obligation. During the twelve months ended December 31, 2022, the Company recognized $48.2 million of 
revenue related to the Pfizer Agreement. As of December 31, 2022, there was $96.4 million and $155.4 million of current and long-term deferred revenue, 
respectively, related to the Pfizer Agreement. There was no revenue recognized related to the Pfizer Agreement during the years ended December 31, 2021 
or 2020. 

Sana Biotechnology

In October 2021, the Company entered into an option and license agreement, or the Sana Agreement, with Sana Biotechnology, Inc., or Sana, under which 
the Company granted Sana a license for non-exclusive rights to its CRISPR Cas12b nuclease system for the development and commercialization of certain 
engineered cellular therapy programs. In addition to the license, the Company performed an initial technology transfer following the effective date of the 
Sana Agreement providing Sana with certain know-how, as required under the Sana Agreement. This technology transfer occurred in 2021. Following the 
license transfer and completion of the initial technology transfer, Sana is responsible, at its sole expense, for the development and commercialization of 
therapeutic products which must contain either specified CAR antigen targets or pluripotent stem cell, or PSC, product types.

As consideration for the license, the Company received an upfront payment of $50.0 million from Sana in October 2021. In addition, the Company may be 
eligible to receive development, regulatory, and commercial milestones of up to $65.0 million from Sana on any product candidate or product. The 
Company will also be entitled to receive royalties equal to a low single digit percentage of net sales on any product.

For up to eighteen months following the effective date of the Sana Agreement, Sana has the option to select up to a cumulative total of two additional CAR 
antigen targets or PSC product types for an additional fee of $10.0 million per additional CAR antigen target and additional PSC product type, or the 
Option Rights, for an aggregate potential additional consideration of $20.0 million. Further, at any time prior to the third anniversary of the effective date of 
the Sana Agreement, Sana has a one-time right to substitute, in the aggregate, either one CAR antigen target or one PSC product type at no additional cost, 
or the Replacement Right. Sana may also select a specified number of additional or replacement genetic targets for each PSC product type at any time prior 
to the third anniversary of the effective date at no additional cost, or the Genetic Target Nomination Rights. Sana may terminate the Sana Agreement for 
convenience prior to the first commercial sale of any licensed product by providing 90 days’ prior written notice or upon 180 days’ prior written notice 
after first commercial sale.

F-34

 
The Company accounts for the Sana Agreement under ASC 606 as it includes a customer-vendor relationship as defined under ASC 606 and meets the 
criteria to be considered a contract. The overall transaction price as of the inception of the contract was determined to be $50.0 million, which is composed 
entirely of the nonrefundable upfront payment. There is no variable consideration included in the transaction price at inception as the future milestone 
payments are fully constrained and the Company is not required to estimate variable consideration for the royalty payments at contract inception. The 
Company will re-evaluate the transaction price in each reporting period. 

The Company has identified a single performance obligation, which includes (i) the non-exclusive license granted to Sana under the Company’s patent 
rights and know-how and (ii) the initial technology transfer following the effective date, which occurred in 2021. The Company further concluded that the 
Option Rights, Replacement Right, and Genetic Target Nomination Rights did not grant Sana a material right. As the Company only identified one 
performance obligation, no allocation of the transaction price is required. 

During the year ended December 31, 2021, the Company recognized $50.0 million of revenue associated with the single performance obligation at a point 
in time upon the transfer of the license to Sana and completion of the initial technology transfer. The Company did not recognize revenue under the Sana 
Agreement for the twelve-month period ended December 31, 2022 or 2020.

Apellis Pharmaceuticals

In June 2021, the Company entered into a research collaboration agreement, or the Apellis Agreement, with Apellis Pharmaceuticals, Inc., or Apellis, 
focused on the use of certain of the Company’s base editing technology to discover new treatments for complement system-driven diseases. Under the 
terms of the Apellis Agreement, the Company will conduct preclinical research on up to six base editing programs that target specific genes within the 
complement system in various organs, including the eye, liver, and brain. Apellis has an exclusive option to license any or all of the six programs, or in 
each case, an Opt-In Right, and will assume responsibility for subsequent development. The Company may elect to enter into a 50-50 U.S. co-development 
and co-commercialization agreement with Apellis with respect to one program instead of a license. The collaboration is managed on an overall basis by an 
alliance steering committee formed by an equal number of representatives from the Company and Apellis.

As part of the collaboration, the Company is eligible to receive a total of $75.0 million in upfront and near-term milestones from Apellis, which is 
comprised of $50.0 million received upon signing and an additional $25.0 million payment on June 30, 2022, the one-year anniversary of the effective date 
of the Apellis Agreement, or the First Anniversary Payment. Following any exercise of an Opt-In Right for any of the six programs, the Company will be 
eligible to receive development, regulatory, and sales milestones from Apellis, as well as royalty payments on sales. The collaboration has an initial term of 
five years and may be extended up to two years on a per year and program-by-program basis. During the collaboration term, Apellis may, subject to certain 
limitations, substitute a specific complement gene and/or organ for any of the initial base editing programs. Apellis may terminate the Apellis Agreement 
for convenience on any or all of the programs by providing prior written notice. The Company received the $50.0 million upfront payment from Apellis in 
July 2021 and the $25.0 million First Anniversary Payment in June 2022. 

The Company accounts for the Apellis Agreement under ASC 606 as it includes a customer-vendor relationship as defined under ASC 606 and meets the 
criteria to be considered a contract. 

The overall transaction price as of the inception of the contract was determined to be $75.0 million, which is composed of the upfront payment of $50.0 
million and the First Anniversary Payment of $25.0 million. The Company will re-evaluate the transaction price in each reporting period.

The Company concluded that each of the six base editing programs combined with the research and development service, licenses, substitution rights and 
governance participation were material promises that were both capable of being distinct and were distinct within the context of the Apellis Agreement and 
represented separate performance obligations. Therefore, the Company did not recognize any upfront revenue related to the license. The Company further 
concluded that the Opt-In Rights and option to extend the collaboration term did not grant Apellis a material right. The Company determined that the term 
of the contract is five years, as this is the period during which both parties have enforceable rights.

The selling price of each performance obligation was determined based on the Company’s estimated standalone selling price, or the ESSP. The Company 
developed the ESSP for all of the performance obligations included in the Apellis Agreement by determining the total estimated costs to fulfill each 
performance obligation identified with the objective of determining the price at which it would sell such an item if it were to be sold regularly on a 
standalone basis. The Company allocated the stand-alone selling price to the performance obligations based on the relative standalone selling price method.

F-35

 
The Company recognizes revenue for each performance obligation as it is satisfied over the five-year term using an input method. The Company allocated 
the transaction price of $75.0 million to each of the six performance obligations, which includes each of the six base editing programs combined with the 
research and development service, licenses, substitution rights and governance participation, and is being recognized using an input method based on the 
actual costs incurred as a percentage of total budgeted costs towards satisfying the performance obligation as this method provides the most faithful 
depiction of the entity’s performance in transferring control of the goods and services promised to Apellis and represents the Company’s best estimate of 
the period of the obligation. The Company recognized $10.6 million and $1.8 million of revenue related to the Apellis Agreement for the twelve months 
ended December 31, 2022 and 2021, respectively. As of December 31, 2022, there is $31.1 million and $31.5 million of current and long-term deferred 
revenue, respectively, related to the Apellis Agreement. The Company did not recognize any revenue under the Apellis Agreement during the year ended 
December 31, 2020.

Prime Medicine

In September 2019, the Company entered into a collaboration and license agreement with Prime Medicine to research and develop a novel gene editing 
technology developed by one of the Company’s founders. Under the terms of the agreement, the Company granted Prime Medicine a non-exclusive license 
to certain of its CRISPR technology (including Cas12b), delivery technology and certain other technology controlled by the Company to develop and 
commercialize gene editing products for the treatment of human diseases. Prime Medicine granted the Company an exclusive license to develop and 
commercialize prime gene editing technology for the creation or modification of any single base transition mutations, as well as any edits made for the 
treatment of sickle cell disease. The Company is not currently using the intellectual property licensed from Prime Medicine in any of its current programs, 
but it is required to use commercially reasonable efforts to develop new product candidates using the intellectual property licensed from Prime Medicine. 
Additionally, each party granted to the other party certain exclusive and non-exclusive licenses to certain technology developed after the effective date of 
the agreement and controlled by the granting party or jointly owned by the parties. Each party has an obligation to assign rights in certain technology 
developed under the collaboration to the other party.

For products that use technology licensed from Prime Medicine, the Company is required to make milestone payments to Prime Medicine upon the 
achievement of certain clinical, regulatory and commercial events. It is also required to use commercially reasonable efforts to develop and seek regulatory 
approval for two products that use licensed technology from Prime Medicine in certain specified countries and to commercialize any such product(s) for 
which approval has been obtained in certain specified countries. Prime Medicine and the Company are each required to use commercially reasonable 
efforts to conduct the activities for which they are responsible under any development plan(s) under the agreement. Prime Medicine has an option to jointly 
develop and commercialize, and share expenses and revenue for, certain products that use technology licensed from Prime Medicine in the United States. 
Royalty payments may become due by either party to the other based on the net sales of commercialized products under the agreement. In addition, certain 
of the rights licensed under the agreement are sublicensed from third parties, and the Company or Prime Medicine may be required to make certain 
payments to such third parties to the extent the Company or Prime Medicine develop and commercialize products under such rights.

The Company had an obligation to issue $5.0 million in shares of its common stock to Prime Medicine, and Prime Medicine had an obligation to issue 
5,000,000 shares of its common stock to the Company, should the Company elect to extend the collaboration beyond one year. In September 2020, the 
Company elected to continue the collaboration and, in October 2020, issued 200,307 shares of the Company’s common stock to Prime Medicine. The 
Company recognized $5.5 million, which represented the fair value of the Company's common stock issued to Prime Medicine, as research and 
development expense within the accompanying consolidated statements of operations and other comprehensive loss for the year ended December 31, 2020. 
Additionally, in October 2020, the Company received 5,000,000 shares of Prime Medicine’s common stock and recognized $0.1 million as an offset to 
research and development expense within the accompanying consolidated statements of operations and other comprehensive loss for the year ended 
December 31, 2020. In October 2022, Prime completed an initial public offering of its common stock. In connection with Prime's initial public offering, 
Prime effected a one-for-3.1088 reverse stock split. As of December 31, 2022 the Company owned 1,608,337 shares of Prime's common stock valued at 
$29.9 million.

Additionally, the Company provided immaterial interim management and startup services to Prime Medicine through March 2021 but did not provide any 
such services during 2022.

As of December 31, 2022, the Company determined that future milestones and royalties under the agreement were not probable of recognition.

F-36

 
Verve

In April 2019, the Company entered into a collaboration and license agreement with Verve, or the Verve Agreement, to investigate gene editing strategies to 
modify genes associated with an increased risk of coronary diseases and in July 2022, the Company and Verve amended the Verve Agreement. Under the 
terms of the Verve Agreement, as amended, the Company granted Verve an exclusive license to certain base editor technology and improvements and Verve 
granted the Company a non-exclusive license under certain know-how and patents controlled by Verve, an interest in joint collaboration technology and a 
non-exclusive license under certain delivery technology. Verve is responsible for all costs associated with the research and development activities under the 
Verve License agreement. The Company has the option to share in the future development of certain products, with no associated fee at the time the right is 
exercised. Upon exercise of the Company’s option, the profits and expenses of such product will be shared, as defined in the agreement. To date, the 
Company has not exercised its option.

In connection with the Verve License Agreement, Verve issued the Company 2.6 million shares of its common stock as partial consideration for the licenses 
granted, having a fair value of $0.5 million. The fair value of the Verve common stock was determined by management with the assistance of a third-party 
valuation specialist. In addition, to the extent certain clinical, regulatory, and commercial milestones are met with respect to licensed products, Verve will 
be required to pay to the Company certain amounts, as defined in the agreement. Either party may owe the other party other milestone payments for certain 
clinical and regulatory events related to the delivery technology products. Royalty payments may become due by either party to the other based on the net 
sales of any delivery technology products under the agreement. Lastly, to the extent there are sales of a licensed product, Verve is obligated to pay the 
Company royalties, as defined in the agreement. The term of the agreement commenced in April 2019 and, unless earlier terminated in accordance with the 
terms of the agreement, will continue until the last to expire royalty term for any licensed product. 

The Company also purchased shares of Verve's Series A preferred stock during the twelve months ended December 31, 2020. During June 2021, Verve 
completed an initial public offering of its common stock. In connection with Verve’s initial public offering, Verve effected a one-for-9.2592 reverse stock 
split and also converted all shares of its preferred stock into shares of common stock. As of December 31, 2022, the Company owned 546,970 shares of 
Verve's common stock valued at $10.6 million.

Management determined that the performance obligations associated with the Verve License Agreement are the combined licenses and improvements 
related to the licensed technology. All other items promised to Verve are immaterial in the context of the agreement. The fair value of the shares issued by 
Verve to the Company were considered a fixed upfront payment of $0.5 million in the form of non-cash consideration. The Company determined that its 
performance obligations associated with the Verve License Agreement at contract inception were not distinct and represented a single performance 
obligation, and that the obligations would be completed over the performance period of the agreement. Accordingly, the upfront payment will be 
recognized as revenue using a time-based proportional performance model over the contract term (April 2019 through 2038) of the collaboration, as license 
revenue. For each of the years ended December 31, 2022, 2021, and 2020, the Company recognized approximately $24,000 of license revenue and has 
approximately $0.4 million of deferred revenue as of December 31, 2022. To date, no commercial milestone payments or royalties are due. The remaining 
fees that may be paid under the agreement are considered variable consideration and will be constrained until it is probable that a significant revenue 
reversal would not occur. To date, the Company has not exercised its option to opt-in to a licensed product and no milestones or royalties have been 
achieved. 

12. Preferred stock and common stock 

In January 2020, the Company authorized the designation of 25,000,000 shares of preferred stock and increased its authorized common stock to 
250,000,000 shares, each with a par value of $0.01 per share. 

In February 2020, the Company completed its IPO in which the Company issued and sold 12,176,471 shares of its common stock, including 1,588,235 
shares pursuant to the full exercise of the underwriters’ option to purchase additional shares, at a public offering price of $17.00 per share, for aggregate 
gross proceeds of $207.0 million. The Company received approximately $188.3 million in net proceeds after deducting underwriting discounts and offering 
expenses payable by the Company. In connection with the IPO, all outstanding shares of the Company’s redeemable convertible preferred stock converted 
into 29,127,523 shares of the Company’s common stock.

In October 2020, the Company issued and sold 5,750,000 shares of its common stock, including 750,000 shares pursuant to the full exercise of the 
underwriters’ option to purchase additional shares, at a public offering price of $23.50 per share, for aggregate gross proceeds of $135.1 million. The 
Company received approximately $126.6 million in net proceeds after deducting underwriting discounts and offering expenses payable by the Company.

In October 2020, due to its election to continue the Prime Agreement, the Company issued 200,307 shares of its common stock to Prime Medicine. 

In January 2021, the Company issued and sold 2,795,700 shares of its common stock in a private placement at an offering price of $93.00 per share for 
aggregate gross proceeds of $260.0 million. The Company received $252.0 million in net proceeds after deducting fees to the placement agents and 
offering expenses payable by the Company.

F-37

 
In April 2021, the Company entered into the Sales Agreement with Jefferies, pursuant to which the Company was entitled to offer and sell, from time to 
time at prevailing market prices, shares of the Company’s common stock having aggregate gross proceeds of up to $300.0 million. The Company agreed to 
pay Jefferies a commission of up to 3.0% of the aggregate gross sale proceeds of any shares sold by Jefferies under the Sales Agreement. As of December 
31, 2022, the Company has sold 2,908,009 shares of its common stock under the Sales Agreement at an average price of $103.16 per share for aggregate 
gross proceeds of $300.0 million, before deducting commissions and offering expenses payable by the Company.

In July 2021, the Company and Jefferies entered into an amendment to the Sales Agreement to provide for an increase in the aggregate offering amount 
under the Sales Agreement, such that as of July 7, 2021, the Company may offer and sell shares of common stock having an aggregate offering price of an 
additional $500.0 million. As of December 31, 2022, the Company has sold 3,908,289 additional shares of its common stock under the amended Sales 
Agreement at an average price of $82.38 per share for aggregate gross proceeds of $322.0 million, before deducting commissions and offering expenses 
payable by the Company, resulting in an aggregate of $622.0 million in gross proceeds received under the Sales Agreement, as amended, as of December 
31, 2022.

In May 2021, the first success payment measurements under each of the Harvard and Broad License Agreements occurred and success payments to 
Harvard and Broad Institute were calculated to be $15.0 million and $15.0 million, respectively. The Company elected to make each payment in shares of 
the Company’s common stock and issued 174,825 shares of the Company’s common stock to each of Harvard and Broad Institute to settle these liabilities 
in June 2021.

The holders of the Company’s common stock are entitled to one vote for each share of common stock. Subject to the payment in full of all preferential 
dividends to which the holders of the Company’s preferred stock are entitled, the holders of the Company’s common stock shall be entitled to receive 
ratably dividends out of funds legally available. In the event of any voluntary or involuntary liquidation, dissolution, or winding up of the Company, after 
the payment or provision for payment of all debts and liabilities of the Company and all preferential amounts to which the holders of Company’s preferred 
stock are entitled with respect to the distribution of assets in liquidation, the holders of common stock shall be entitled to share ratably in the remaining 
assets of the Company available for distribution.

13. Stock option and grant plan 

2017 stock option and grant plan 

In June 2017, the Company’s board of directors adopted the Beam Therapeutics Inc. 2017 Stock Option and Grant Plan, or the 2017 Plan, which provided 
for the grant of qualified incentive stock options and nonqualified stock options, restricted stock or other awards to the Company’s employees, officers, 
directors, advisors, and outside consultants for the issuance or purchase of shares of the Company’s common stock. In May 2019, the 2017 Plan was 
amended to provide up to 8,078,681 shares of common stock for the issuance of stock options and restricted stock.

The 2017 Plan is administered by the board of directors. The exercise prices, vesting and other restrictions are determined at the discretion of the board of 
directors, except that the exercise price per share of stock options may not be less than 100% of the fair market value of the common stock on the date of 
grant. Stock options awarded under the 2017 Plan expire 10 years after the grant date, unless the board of directors sets a shorter term. Vesting periods for 
awards under the 2017 Plan are determined at the discretion of the board of directors. Incentive stock options granted to employees and shares of restricted 
stock granted to officers, founders and consultants of the Company typically vest over four years. Certain options provide for accelerated vesting if there is 
a change in control, as defined in the 2017 Plan. Non-statutory options granted to employees, officers, members of the board of directors and consultants of 
the Company typically vest over four years.

2019 incentive plan

In October 2019, the Company’s board of directors adopted the Beam Therapeutics Inc. 2019 Equity Incentive Plan, or the 2019 Plan, and, following the 
IPO, all equity-based awards are granted under the 2019 Plan. The 2019 Plan provides for the grant of qualified and nonqualified stock options, stock 
appreciation rights, restricted and unrestricted stock and stock units, performance awards, and other share-based awards to the Company’s employees, 
officers, directors, advisors, and outside consultants.

The maximum number of shares of the Company’s common stock that may be issued under the 2019 Plan was initially 3,700,000 shares, or the Share Pool, 
plus the number of shares of the Company’s common stock underlying awards under the 2017 Plan, not to exceed 5,639,818 shares, that become available 
again for grant under the 2017 Plan in accordance with its terms. The Share Pool will automatically increase on January 1st of each year from 2021 to 2029 
by the lesser of (i) four percent of the number of shares of the Company’s common stock outstanding as of the close of business on the immediately 
preceding December 31st and (ii) the number of shares determined by the Company’s board of directors on or prior to such date for such year.

As of December 31, 2022, the Company had 10,797,126 shares reserved and 1,555,915 shares available for future issuance under the 2019 Plan.

F-38

 
Stock-based compensation expense recorded as research and development and general and administrative expenses in the consolidated statements of 
operations and other comprehensive loss is as follows (in thousands):

Research and development
General and administrative

Total stock-based compensation expense

Stock options 

2022

Years Ended December 31,
2021

2020

  $

  $

52,004     $
32,317    
84,321     $

26,644    
16,926    
43,570     $

11,199  
4,181  
15,380  

The assumptions used in the Black-Scholes option-pricing model for stock options granted were:

Expected volatility
Weighted-average risk-free interest rate
Expected dividend yield
Expected term (in years)

2022

2021

2020

Years Ended December 31,

74.8-77.3%    
2.27 % 
0.00 % 
6.08    

71.4-76.7%    
1.11 % 
0.00 % 
6.12    

75.6-82.6%  
1.07 %
0.00 %
6.24  

The following table provides a summary of option activity under the Company’s equity award plans:

Outstanding at December 31, 2021

Granted
Exercised
Forfeitures

Outstanding at December 31, 2022

Exercisable as of December 31, 2022

Number
of options

6,034,192     $
2,215,246    
(484,435 )  
(216,611 )  
7,548,392    
3,790,249     $

Weighted
average
exercise
price

32.40      
60.75    
5.64    
55.91    

41.77      

27.08      

Weighted
average
remaining
contractual
life (years)

Aggregate
intrinsic
value (1)
(in thousands)

7.9     $

300,560  

7.5      

6.6     $

110,990  

87,547  

(1)

The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying options and the estimated fair value of the 
common stock for the options that were in the money as of December 31, 2022 and 2021. 

The Company has granted stock options to certain employees to purchase shares of common stock that contain certain performance-based vesting criteria, 
primarily related to the achievement of certain development milestones related to editing applications, and the closing price of the Company’s common 
stock following an IPO. Recognition of stock-based compensation expense associated with these performance-based stock options commences when the 
performance condition is considered probable of achievement, using management’s best estimates, which consider the inherent risk and uncertainty 
regarding the future outcomes of the milestones. The expense related to performance-based stock options was immaterial for the years ended December 31, 
2022 and 2021 and no expense was recognized for the year ended December 31, 2020.

The weighted-average grant date fair value per share of stock options granted during the years ended December 31, 2022, 2021 and 2020, was $40.86, 
$58.56 and $15.32, respectively. The aggregate intrinsic value of stock options exercised during the years ended December 31, 2022, 2021 and 2020 was 
$23.4 million, $85.1 million and $29.9 million, respectively. The weighted-average exercise price of stock options exercised for the years ended December 
31, 2022, 2021 and 2020 was $5.64, $9.88 and $3.67, respectively.

As of December 31, 2022, there was $135.3 million of unrecognized compensation cost related to unvested stock options, which is expected to be 
recognized over a weighted-average period of approximately 2.4 years.

Restricted stock 

The Company issued shares of restricted common stock during the years ended December 31, 2022 and 2021, which consisted only of restricted stock 
units. The company issued shares of restricted common stock during the year ended December 31, 2020, which consisted restricted stock units and awards. 
Restricted common stock issued generally vests over a period of two to four years. 

Under the 2017 Plan, the Company granted restricted common stock awards with service conditions. In 2018, the Company issued shares of restricted 
common stock to certain of the Company’s scientific founders and a portion of these issued shares were subject to vesting over a period of four years, with 
the commencement of vesting of the remaining shares upon the achievement of certain financing milestones, and in certain instances continued service 
after the milestones were achieved.

F-39

 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
 
   
   
 
     
   
   
 
     
   
   
 
     
   
   
 
   
 
Generally, if the holders of restricted common stock cease to have a business relationship with the Company, the Company may reacquire any unvested 
shares of common stock held by these individuals for the original purchase price, and in certain instances for no consideration. The amounts received to 
date for the purchase price of restricted stock are immaterial. The unvested shares of restricted common stock are not considered outstanding shares for 
accounting purposes until the shares vest. 

The following summarizes the Company’s restricted stock activity: 

Unvested as of December 31, 2021

Issued
Vested
Forfeited

Unvested as of December 31, 2022

Shares

1,126,206     $
1,071,925    
(424,303 )  
(81,009 )  
1,692,819     $

Weighted-
average grant
date fair
value

74.32  
51.72  
53.06  
71.02  
65.49  

The aggregate fair value of restricted shares that vested during the years ended December 31, 2022, 2021 and 2020 was $53.1 million, $6.4 million and 
$6.9 million, respectively. 

At December 31, 2022, there was approximately $92.6 million of unrecognized stock-based compensation expense related to restricted stock that is 
expected to vest. These costs are expected to be recognized over a weighted-average remaining vesting period of approximately 3.0 years.

2019 Employee Stock Purchase Plan 

In February 2020, the Company’s board of directors adopted the Beam Therapeutics Inc. 2019 Employee Stock Purchase Plan, or ESPP, which was 
approved by the Company’s stockholders. Pursuant to the ESPP, certain employees of the Company, excluding consultants and non-employee directors, are 
eligible to purchase common stock of the Company at a reduced rate during offering periods. The ESPP permits participants to purchase common stock 
using funds contributed through payroll deductions, subject to a calendar year limit of $25,000 and at a purchase price of 85% of the lower of the fair 
market value of the Company’s common stock on the first trading day of the offering period or on the applicable purchase date, which will be the final 
trading day of the applicable purchase period.

The Company used the Black-Scholes option valuation model to estimate the fair value of the purchase right under the ESPP on the date of grant. The 
expected volatility is based on the historical volatility of the Company's common stock for a period of years corresponding with the expected life of the 
option. The risk-free interest rate is based on the U.S. Treasury yield curve at the time of grant for securities with a maturity period similar to the expected 
life of the option. The expected life is based on the term of the purchase period for the grants made under the ESPP. The Company uses the straight-line 
attribution approach to record the expense over the offering period.

The Company uses the straight-line attribution approach to record the expense over the offering period. Stock-based compensation expense related to the 
ESPP for the year ended December 31, 2022 and 2021 was $1.5 million and $0.3 million, respectively. There was no stock-based compensation expense 
incurred related to the ESPP for the year ended December 31, 2020. 

The Company issued 70,073 shares under the ESPP during the twelve months ended December 31, 2022. There were no shares issued under the ESPP 
during the twelve months ended December 31, 2021. As of December 31, 2022, the Company had 1,665,199 shares available for issuance under the ESPP.

14. Net loss per share attributable to common stockholders 

As noted above, for periods in which the Company reports a net loss attributable to common stockholders, potentially dilutive securities have been 
excluded from the computation of diluted net loss per share as their effects would be anti-dilutive. Therefore, the weighted average number of common 
shares outstanding used to calculate both basic and diluted net loss per share attributable to common stockholders is the same. The Company excluded the 
following potential common shares, presented based on amounts outstanding at period end, from the computation of diluted net loss per share attributable 
to common stockholders because including them would have had an anti-dilutive effect:

Unvested restricted stock
Outstanding options to purchase common stock
ESPP

Total

F-40

2022
1,692,819      
7,548,392      
45,906      
9,287,117      

As of December 31,
2021
1,126,206      
6,034,192      
19,379      
7,179,777      

2020
1,275,338  
5,336,441  
—  
6,611,779  

 
 
 
 
 
 
   
   
 
   
 
   
 
   
 
 
 
 
 
 
 
   
   
 
   
   
   
   
 
The following table summarizes the computation of basic and diluted net loss per share attributable to common stockholders of the Company (in thousands, 
except share and per share amounts): 

Numerator:
Net loss
Accretion of redeemable convertible preferred stock to redemption value, 
including dividends on preferred stock
Net loss attributable to common stockholders

Denominator:

2022

Years Ended December 31,
2021

2020

  $

(289,088 )   $

(370,638 )   $

(194,592 )

—  

(289,088 )  

—  

(370,638 )  

(1,277 )
(195,869 )

Weighted average common shares outstanding, basic and diluted

70,015,305    

64,227,676    

46,733,221  

Net loss per common share attributable to common stockholders, basic and 
diluted

$

(4.13 )

$

(5.77 )

$

(4.19 )

15. Income taxes 

A reconciliation of the income tax expense computed using the federal statutory income tax rate to the Company’s effective income tax rate is as follows:

Federal statutory rate

State income taxes, net of federal benefit
Research and development tax credits
Nondeductible/ nontaxable permanent items
IPR&D Guide Acquisition
Change in valuation allowance

Total

The components of the Company’s deferred taxes are as follows (in thousands): 

Deferred tax assets:

Net operating loss carryforwards
Research and development tax credits
Accrued expenses and other
Deferred revenue
Derivative liabilities
Stock options
Amortization
Capitalized Research
Lease liability

Total deferred tax assets

ROU asset
Property and equipment
Other
Less: valuation allowance

Deferred tax assets, net

F-41

2022

Years Ended December 31,
2021

2020

21.0 %   
7.4      
4.2      
(1.8 )    
—      
(32.0 )    
-1.2 %   

21.0 %   
5.1      
2.6      
0.7      
(8.8 )    
(20.6 )    
0.0 %   

21.0 %
7.2  
2.1  
0.8  
—  
(31.1 )
0.0 %

December 31,

2022

2021

  $

  $

25,740     $
27,801    
12,472    
84,622    
4,920    
9,714    
19,893    
63,816    
48,122    
297,100    
(31,860 )  
(508 )  
(10,325 )  
(254,407 )  

—     $

103,868  
23,745  
2,703  
107  
11,483  
5,489  
20,754  
—  
38,734  
206,883  
(27,950 )
(1,868 )
(4,954 )
(172,111 )
—  

 
 
 
 
 
 
 
   
   
 
 
     
     
   
 
 
 
 
 
 
 
 
 
 
 
     
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
   
   
   
   
   
   
   
 
 
 
 
 
   
 
 
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
For the year ended December 31, 2022, the Company recorded $3.4 million of income tax expense, primarily as a result of the adoption of Section 174 of 
the Tax Cuts and Jobs Act of 2017, or TCJA, and full recognition of the Apellis and Pfizer license and collaboration revenue that was deferred in 2021 for 
tax purposes. The TCJA requires taxpayers to capitalize and amortize research and development expenditures for tax years beginning after December 31, 
2021. This rule became effective for the Company during 2022 and resulted in capitalized research and development costs of $237.4 million as of 
December 31, 2022. The Company will amortize these costs for tax purposes over five years for research and development performed in the United States 
and over 15 years for research and development performed outside the United States. The Company had no income tax expense during the years ended 
2021 or 2020. Management has evaluated the positive and negative evidence bearing upon the realizability of the Company’s net deferred tax assets and 
has determined that it is more likely than not that the Company will not recognize the benefits of the net deferred tax assets, except to the extent NOLs, or 
net operating losses, have been used to reduce taxable income. As a result, the Company has recorded a full valuation allowance at December 31, 2022 and 
2021. The valuation allowance increased by $82.3 million in 2022 due to the increase in deferred tax assets, primarily due to increased capitalization of 
R&D expenditures in 2022 as required by changes to the tax laws from the TCJA as described above. The valuation allowance increased by $77.1 million 
in 2021.

Utilization of the NOL and research and development credit carryforwards may be subject to a substantial annual limitation under Section 382 and 383 of 
the Internal Revenue Code due to ownership change limitations that have occurred previously, or that could occur in the future. These ownership changes 
may limit the amount of net operating loss and research and development credit carryforwards that can be utilized annually to offset future taxable income 
and tax, respectively. The Company has completed a Section 382 study as of December 31, 2021. As of December 31, 2021 the Company had $374.4 
million of federal NOLs available, $371.0 million of which are subject to an 80% limitation. 

As of December 31, 2022, the Company had $120.3 million of federal NOL carryforwards. The federal NOLs generated in 2021 will not expire. 
Additionally, as of December 31, 2022, the Company had $18.9 million of federal and $11.3 million of Massachusetts tax credits that expire starting in 
2042.

As of December 31, 2022, and 2021, the Company had no uncertain tax positions. The Company recognizes both interest and penalties associated with 
unrecognized tax benefits as a component of income tax expense. The Company has not recorded any interest or penalties for unrecognized tax benefits 
since its inception.

The Company filed income tax returns in the United States and the Commonwealth of Massachusetts in all tax years since inception. Tax years beginning 
in 2018 remain open to examination in these jurisdictions, as carryforward attributes generated in past years may be adjusted in a future period. The IRS 
has not made any assessments as of December 31, 2022. 

16. Related party transactions 

Orbital

As described in Note 8, the Company has significant influence over, but does not control, Orbital through its noncontrolling representation on Orbital's 
board of directors and the Company’s equity interest in Orbital. The Company and Orbital are also parties to a collaboration and license agreement and 
have multiple common board members. The Company has a 31.5% equity interest in Orbital as of December 31, 2022. 

Founders

For the years ended December 31, 2022, 2021 and 2020, the Company made payments of $0.4 million, $0.5 million and $0.5 million, respectively, to its 
three founder shareholders for scientific consulting and other expenses. 

Verve

The Company and Verve are parties to a collaboration and license agreement and had a common board member through the first half of 2022. 

Prior to Verve’s initial public offering in June 2021, the Company owned both common and preferred shares of Verve and valued such investment based on 
the cost of the equity securities adjusted for any observable market transactions. Following the initial public offering, and the conversion to common stock 
and the stock split, the equity securities have a readily determinable fair value and the Company owned 546,970 shares of Verve's common stock, the value 
of which is included in marketable securities in the consolidated balance sheet. The Company recorded the investment as fair value, which resulted in the 
recognition of $9.6 million of other expense, $17.7 million of other income and $0.5 million of other income for the twelve months ended December 31, 
2022, 2021 and 2020, respectively. The value of this investment as of December 31, 2022 and 2021 is $10.6 million and $20.2 million, respectively. 

During the year ended December 31, 2020, the Company purchased shares of Verve series A preferred stock valued at $0.8 million. These shares were 
converted into shares of Verve common stock in connection with Verve’s initial public offering. 

F-42

 
 
The Company purchased certain materials from Verve amounting to $0.4 million, $0.2 million and $0.4 million, which is recorded as research and 
development expenses within the accompanying consolidated statements of operations and other comprehensive loss for the years ended December 31, 
2022, 2021, and 2020 respectively. The Company also sold certain materials to Verve amounting to $0.2 million, which is recorded as interest and other 
income (expense), net within the accompanying consolidated statements of operations and other comprehensive loss for the year ended December 31, 2020. 
The Company did not sell any materials to Verve during the years ended December 31, 2022 and 2021. 

In October 2021, the Company entered into an agreement pursuant to which Verve subleased 12,000 square feet of the Company’s existing office and 
laboratory space for a term of one year which began in December 2021. The Company recorded $1.3 million and $0.1 million of sublease income related to 
this sublease within the accompanying consolidated statements of operations and other comprehensive loss for the years ended December 31, 2022 and 
2021, respectively, as well as its proportionate costs for the landlord’s operating expense, insurance, property taxes, and utilities. As of December 31, 2022, 
the Verve sublease agreement had expired.

Prime Medicine

The Company and Prime Medicine are parties to a collaboration and license agreement and have a common founder and had a common board member into 
the third quarter of 2022.

In September 2020, the Company elected to continue its collaboration with Prime Medicine and, in October 2020, as required by the terms under its 
collaboration and license agreement with Prime Medicine, issued 200,307 shares of the Company’s common stock to Prime Medicine. The Company 
recognized $5.5 million, which represents the fair value of the Company's common stock issued to Prime Medicine, as research and development expense 
within the accompanying consolidated statements of operations and other comprehensive loss for the year ended December 31, 2020. Additionally, in 
October 2020, the Company received 5,000,000 shares of Prime Medicine’s common stock and recognized $0.1 million as an offset to research and 
development expense within the accompanying consolidated statements of operations and other comprehensive loss for the year ended December 31, 2020.

In October 2022, Prime completed an initial public offering of its common stock. In connection with Prime's initial public offering, Prime effected a one-
for-3.1088 reverse stock split. As of December 31, 2022 the Company owned 1,608,337 shares of Prime's common stock valued at $29.9 million and 
recognized $29.8 million of other income during the twelve months ended December 31, 2022 associated with changes in the fair value of Prime's common 
stock.

Management services provided to the Company by Prime Medicine were immaterial for the year ended December 31, 2022. Additionally, in September 
2019, in connection with the Company’s collaboration and license agreement with Prime Medicine, the Company executed a letter agreement, as amended, 
to provide certain interim management and startup services to Prime Medicine through March 2021. Prime Medicine was obligated to reimburse the 
Company’s out-of-pocket costs incurred in connection with performing the services and, beginning in October 2020 and ending March 2021, paid the 
Company a $30,000 monthly service fee. The Company recognized $0.1 million for performing such services in interest and other income (expense), net, 
during each of the years ended December 31, 2021 and 2020. The Company did not perform any such services during the twelve months ended December 
31, 2022. 

17. Employee benefits 

In 2018, the Company established a defined-contribution plan under Section 401(k) of the Internal Revenue Code, or the 401(k) Plan. The 401(k) Plan 
covers all employees who meet defined minimum age and service requirements and allows participants to defer a portion of their annual compensation on a 
pre-tax basis. Beginning January 1, 2020, the Company made matching contributions equal to 50% of the employee’s contributions, subject to a maximum 
of 6% of eligible compensation. The Company made matching contributions of $2.0 million, $1.1 million, and $0.6 million for the years ended December 
31, 2022, 2021, and 2020 respectively.

F-43

 
BEAM THERAPEUTICS INC.

SECOND AMENDED AND RESTATED BYLAWS

SECTION 1 — STOCKHOLDERS

Section 1.1.Annual Meeting.

An annual meeting of the stockholders of Beam Therapeutics Inc., a Delaware corporation (the “Corporation”), for the 

election of directors to succeed those whose terms expire and for the transaction of such other business as may properly come 
before the meeting shall be held at the place, if any, within or without the State of Delaware, on the date and at the hour that the 
Board of Directors of the Corporation (the “Board of Directors”) shall each year fix.  Unless stated otherwise in the notice of the 
annual meeting of the stockholders of the Corporation, such annual meeting shall be at the principal office of the Corporation.

Section 1.2.Special Meetings; Notice.

Special meetings of the stockholders of the Corporation may be called only to the extent and in the manner set forth in 

the Certificate of Incorporation.  Notice of every special meeting of the stockholders of the Corporation shall state the purpose or 
purposes of such meeting.  Except as otherwise required by law, the business conducted at a special meeting of stockholders of 
the Corporation shall be limited exclusively to the business set forth in the Corporation’s notice of meeting, and the individual or 
group calling such meeting shall have exclusive authority to determine the business included in such notice.

Section 1.3.Notice of Meetings.

Notice of the place, if any, date and hour of all meetings of stockholders of the Corporation, the record date for 
determining the stockholders entitled to vote at the meeting (if such date is different from the record date for stockholders entitled 
to notice of the meeting) and the means of remote communications, if any, by which stockholders and proxy holders may be 
deemed present and vote at such meeting, and, in the case of all special meetings of stockholders, the purpose or purposes of the 
meeting, shall be given, not less than ten (10) nor more than sixty (60) days before the date on which such meeting is to be held 
(unless a different time is specified by law), to each stockholder entitled to notice of the meeting.

The Corporation may postpone or cancel any previously called annual or special meeting of stockholders of the 

Corporation by making a public announcement (as defined in Section 1.10) of such postponement or cancellation prior to the 
meeting.  When a previously called annual or special meeting is postponed to another hour, date or place (including an 
adjournment taken to address a technical failure to convene or continue a meeting using remote communication), if any, notice of 
the place (if any), date and hour of the postponed meeting, the record date for determining the stockholders entitled to vote at the 
meeting (if such date is different from the record date for stockholders entitled to notice of the meeting) and the means of remote 
communications, if any, by which stockholders and proxy holders may be deemed present and vote at such postponed meeting, 
shall be given in conformity with this Section 1.3

1

 
 
 unless such meeting is postponed to a date that is not more than sixty (60) days after the date that the initial notice of the meeting 
was provided in conformity with this Section 1.3.

When a meeting is adjourned to another hour or place, notice need not be given of the adjourned meeting if the hour and 
place, if any, thereof and the means of remote communication, if any, by which stockholders and proxy holders may be deemed to 
be present and vote at such adjourned meeting are (i) announced at the meeting at which the adjournment is taken, (ii) displayed, 
during the time scheduled for the meeting, on the same electronic network used to enable stockholders and proxy holders to 
participate in the meeting by means of remote communication or (iii) set forth in the notice of meeting given in accordance with 
this Section 1.3; provided, however, that if the adjournment is for more than thirty (30) days, a notice of the adjourned meeting 
shall be given to each stockholder of record entitled to vote at the meeting, or if after the adjournment a new record date for 
stockholders entitled to vote is fixed for the adjourned meeting the Board of Directors shall fix a new record date for notice of 
such adjourned meeting in conformity herewith and such notice shall be given to each stockholder of record entitled to vote at 
such adjourned meeting as of the record date for notice of such adjourned meeting.  At any adjourned meeting, any business may 
be transacted that may have been transacted at the original meeting.

Section 1.4.Quorum.

At any meeting of the stockholders, the holders of shares of stock of the Corporation entitled to cast a majority of the 

total votes entitled to be cast by the holders of all outstanding shares of capital stock of the Corporation entitled to vote generally 
in the election of directors, present in person or by proxy, shall constitute a quorum for all purposes, unless or except to the extent 
that the presence of a larger number is required by applicable law or the Certificate of Incorporation.  If a separate vote by one or 
more classes or series is required, the holders of shares entitled to cast a majority of the total votes entitled to be cast by the 
holders of the shares of the class or classes or series, present in person or represented by proxy, shall constitute a quorum entitled 
to take action with respect to that vote on that matter.  A quorum, once established, shall not be broken by the subsequent 
withdrawal of enough votes to leave less than a quorum.

If a quorum shall fail to attend any meeting, the chairperson of the meeting may adjourn the meeting to another place, if 

any, date and hour.  At any such adjourned meeting at which there is a quorum, any business may be transacted that might have 
been transacted at the meeting originally called.

Section 1.5.Organization.

The Chairperson of the Board of Directors or, in his or her absence, the person whom the Board of Directors designates 
or, in the absence of that person or the failure of the Board of Directors to designate a person, the Chief Executive Officer of the 
Corporation or, in his or her absence, the person chosen by the holders of a majority of the shares of capital stock entitled to vote 
who are present, in person or by proxy, shall call to order any meeting of the stockholders of the Corporation and act as 
chairperson of the meeting.  In the absence of the Secretary or any 

2

 
 
Assistant Secretary of the Corporation, the secretary of the meeting shall be the person the chairperson appoints.

Section 1.6.Conduct of Business.

The chairperson of any meeting of stockholders of the Corporation shall determine the order of business and the rules of 
procedure for the conduct of such meeting, including the manner of voting and the conduct of discussion as he or she determines 
to be in order.  The chairperson shall have the power to adjourn the meeting to another place, if any, date and hour.  The date and 
hour of the opening and closing of the polls for each matter upon which the stockholders will vote at the meeting shall be 
announced at the meeting.  Except to the extent inconsistent with such rules and regulations as adopted by the Board of Directors, 
the chairperson of the meeting shall have the right and authority to convene and (for any or no reason) to adjourn the meeting, to 
prescribe such rules, regulations and procedures and to do all such acts as, in the judgment of such chairperson, are appropriate 
for the proper conduct of the meeting.  Such rules, regulations or procedures, whether adopted by the Board of Directors or 
prescribed by the chairperson of the meeting, may include the following: (a) the establishment of an agenda or order of business 
for the meeting; (b) rules and procedures for maintaining order at the meeting and the safety of those present; (c) limitations on 
attendance at or participation in the meeting to stockholders entitled to vote at the meeting, their duly authorized and constituted 
proxies or such other persons as the chairperson of the meeting shall determine; (d) restrictions on entry to the meeting after the 
hour fixed for the commencement thereof; and (e) limitations on the time allotted to questions or comments by participants.  The 
chairperson of the meeting of stockholders, in addition to making any other determinations that may be appropriate to the conduct 
of the meeting, shall, if the facts warrant, determine and declare to the meeting that a nomination or matter of business was not 
properly brought before the meeting and if such chairperson should so determine, such chairperson shall so declare to the meeting 
and any such matter or business not properly brought before the meeting shall not be transacted or considered.  Unless and to the 
extent determined by the Board of Directors or the chairperson of the meeting, meetings of stockholders shall not be required to 
be held in accordance with the rules of parliamentary procedure.

Section 1.7.Proxies; Inspectors.

(a)

At any meeting of the stockholders, every stockholder entitled to vote may vote in person or by proxy 

authorized by an instrument in writing or by a transmission permitted by applicable law, but no such proxy shall be voted or acted 
upon after three (3) years from its date, unless the proxy provides for a longer period.  A proxy shall be irrevocable if it states that 
it is irrevocable and if, and only as long as, it is coupled with an interest sufficient in law to support an irrevocable power.  A 
stockholder may revoke any proxy which is not irrevocable by attending the meeting and voting in person or by delivering to the 
Secretary of the Corporation a revocation of the proxy or a new proxy bearing a later date.

(b)

Prior to a meeting of the stockholders of the Corporation, the Corporation shall appoint one or more inspectors, 

who may be employees of the Corporation, to act at a meeting of stockholders of the Corporation and make a written report 
thereof.  The Corporation may designate one or more persons as alternate inspectors to replace any inspector who fails to act.  If 

3

 
 
no inspector or alternate is able to act at a meeting of stockholders, the person presiding at the meeting may, and to the extent 
required by applicable law, shall, appoint one or more inspectors to act at the meeting.  Each inspector, before beginning the 
discharge of his or her duties, shall take and sign an oath faithfully to execute the duties of inspector with strict impartiality and 
according to the best of his or her ability.  The inspectors may appoint or retain other persons or entities to assist the inspectors in 
the performance of the duties of inspectors.  The inspectors shall have the duties prescribed by applicable law.  Unless otherwise 
provided by the Board of Directors, the date and hour of the opening and the closing of the polls for each matter upon which the 
stockholders will vote at a meeting shall be announced at the meeting.  No ballot, proxies, votes or any revocation thereof or 
change thereto shall be accepted by the inspectors after the closing of the polls unless the Court of Chancery of the State of 
Delaware, upon application by a stockholder, shall determine otherwise.  In determining the validity and counting of proxies and 
ballots cast at any meeting of stockholders, the inspectors may consider such information as is permitted by applicable law.  No 
person who is a candidate for office at an election may serve as an inspector at such election.

Section 1.8.Voting.

Except as otherwise required by the rules or regulations of any stock exchange applicable to the Corporation, any law or 
regulation applicable to the Corporation or the Certificate of Incorporation, all matters other than the election of directors shall be 
determined by a majority of the votes cast on the matter affirmatively or negatively.  When a quorum is present at any meeting of 
stockholders, a nominee for director shall be elected to the Board of Directors if the votes properly cast for such nominee’s 
election exceed the votes properly cast against such nominee’s election (with “abstentions” and “broker non-votes” not counted 
as votes cast either “for” or “against” any director’s election); provided, however, that directors shall be elected by a plurality of 
the votes properly cast at any meeting of stockholders at which there is a contested election of directors.  An election shall be 
considered contested if as of the record date of any meeting of stockholders there are more nominees for election than positions 
on the Board of Directors to be filled by election at that meeting.

Section 1.9.Stock List.

A complete list of stockholders of the Corporation entitled to vote at any meeting of stockholders of the Corporation, 

arranged in alphabetical order for each class of stock and showing the address of each such stockholder and the number of shares 
registered in the name of such stockholder, shall be open to the examination of any such stockholder, for any purpose germane to 
a meeting of the stockholders of the Corporation, no later than the tenth day before the meeting (a) on a reasonably accessible 
electronic network, provided that the information required to gain access to such list is provided with the notice of the meeting or 
(b) during ordinary business hours at the principal place of business of the Corporation; provided, however, if the record date for 
determining the stockholders entitled to vote is less than ten (10) days before the meeting date, the list shall reflect the 
stockholders entitled to vote as of the tenth (10th) day before such meeting date.  The Corporation may look to this list as the sole 
evidence of the identity of the stockholders entitled to vote at a meeting and the number of shares held by each stockholder.

4

 
 
Section 1.10.Notice of Stockholder Nominations.

(a)

Except for any directors entitled to be elected by the holders of preferred stock, only persons who are nominated 

in accordance with the procedures in this Section 1.10 shall be eligible for election as directors at any meeting of stockholders.  
Nomination for election to the Board of Directors at a meeting of stockholders may be made only (i) by or at the direction of the 
Board of Directors or (ii) by any stockholder of the Corporation who (x) has given timely notice thereof in writing to the 
Secretary in accordance with the procedures in, and otherwise complies with, Section 1.10(b), (y) is a stockholder of record who 
is entitled to vote for the election of such nominee on the date of the giving of such notice and on the record date for the 
determination of stockholders entitled to vote at such meeting and (z) is entitled to vote at such meeting.  Notwithstanding the 
foregoing or anything herein to the contrary, a stockholder of the Corporation may make nominations for election to the Board of 
Directors at a special meeting of stockholders pursuant to the foregoing clause (ii) only if the Board of Directors has determined, 
in accordance with Section 1.10 that directors shall be elected at such special meeting and at such time that the stockholders are 
not prohibited from filling vacancies or newly created directorships on the Board of Directors.  The number of nominees a 
stockholder may nominate for election at a meeting (or in the case of a stockholder giving the notice on behalf of a beneficial 
owner, the number of nominees a stockholder may nominate for election at the meeting on behalf of such beneficial owner) shall 
not exceed the number of directors to be elected at such meeting.

(b)

To be timely, a stockholder’s notice must be received in writing by the Secretary at the principal executive office 
of the Corporation as follows: (1) in the case of an election of directors at an annual meeting, not less than 90 days nor more than 
120 days prior to the first anniversary of the preceding year’s annual meeting; provided, however, that in the event that the date of 
the annual meeting is advanced by more than 30 days, or delayed by more than 60 days, from the first anniversary of the 
preceding year’s annual meeting, or if no annual meeting was held or deemed to have been held in the preceding year, a 
stockholder’s notice must be so received not earlier than the 120th day prior to such annual meeting and not later than the close of 
business on the later of (A) the 90th day prior to such annual meeting and (B) the tenth day following the day on which notice of 
the date of such annual meeting was given or public announcement of the date of such annual meeting was made, whichever first 
occurs; or (2) in the case of an election of directors at a special meeting of stockholders, provided that the Board of Directors has 
determined, in accordance with Section 1.10, that directors shall be elected at such special meeting and the stockholders are not 
then prohibited from filling vacancies or newly created directorships on the Board of Directors, and provided further that the 
nomination made by the stockholder is for one of the director positions that the Board of Directors has determined will be filled 
at such special meeting, not earlier than the 120th day prior to such special meeting and not later than the close of business on the 
later of (x) the 90th day prior to such special meeting and (y) the tenth day following the day on which notice of the date of such 
special meeting was given or public announcement of the date of such special meeting was made, whichever first occurs.  In no 
event shall the adjournment or postponement of a meeting (or the public announcement thereof) commence a new time period (or 
extend any time period) for the giving of a stockholder’s notice.

5

 
 
The stockholder’s notice to the Secretary shall set forth: (A) as to each proposed nominee (1) such person’s name, age, 

business address and, if known, residence address, (2) such person’s principal occupation or employment, (3) the class and series 
and number of shares of stock of the Corporation that are, directly or indirectly, owned, beneficially or of record, by such person, 
(4) a description of all direct and indirect compensation and other material monetary agreements, arrangements and 
understandings during the past three years, and any other material relationships, between or among (x) the stockholder, the 
beneficial owner, if any, on whose behalf the nomination is being made and the respective affiliates and associates of, or others 
acting in concert with, such stockholder and such beneficial owner (each, a “Stockholder Associated Person”), on the one hand, 
and (y) each proposed nominee, and his or her respective affiliates and associates, or others acting in concert with such 
nominee(s), on the other hand, including all information that would be required to be disclosed pursuant to Item 404 of 
Regulation S-K if the stockholder making the nomination and any beneficial owner on whose behalf the nomination is made or 
any Stockholder Associated Person were the “registrant” for purposes of such Item and the proposed nominee were a director or 
executive officer of such registrant, and (5) any other information concerning such person that must be disclosed as to nominees 
in proxy solicitations pursuant to Regulation 14A under the Securities Exchange Act of 1934, as amended (the “Exchange Act”); 
and (B) as to the stockholder giving the notice and the beneficial owner, if any, on whose behalf the nomination is being made (1) 
the name and address of such stockholder, as they appear on the Corporation’s books, and of such beneficial owner, (2) the class 
and series and number of shares of stock of the Corporation that are, directly or indirectly, owned, beneficially or of record, by 
such stockholder and such beneficial owner, (3) a description of any material interest related to the nomination of such 
stockholder, such beneficial owner and/or any Stockholder Associated Person, (4) a description of any agreement, arrangement or 
understanding between or among such stockholder, such beneficial owner and/or any Stockholder Associated Person and each 
proposed nominee and any other person or persons (including their names) pursuant to which the nomination(s) are being made 
or who may participate in the solicitation of proxies or votes in favor of electing such nominee(s), (5) a description of any 
agreement, arrangement or understanding (including any derivative or short positions, swaps, profit interests, options, warrants, 
convertible securities, stock appreciation or similar rights, hedging transactions, and borrowed or loaned shares) that has been 
entered into by, or on behalf of, such stockholder, such beneficial owner and/or any Stockholder Associated Person, the effect or 
intent of which is to mitigate loss to, manage risk or benefit of share price changes for, or increase or decrease the voting power 
of, such stockholder, such beneficial owner and/or any Stockholder Associated Person with respect to shares of stock of the 
Corporation, (6) any other information relating to such stockholder, such beneficial owner and/or any Stockholder Associated 
Person that would be required to be disclosed in a proxy statement or other filings required to be made in connection with 
solicitations of proxies for the election of directors in a contested election pursuant to Section 14 of the Exchange Act and the 
rules and regulations promulgated thereunder, (7) a representation that such stockholder intends to appear in person or by proxy 
at the meeting to nominate the person(s) named in its notice, (8) a representation that such stockholder, such beneficial owner 
and/or any Stockholder Associated Person has complied, and will comply, with all applicable requirements of state law and the 
Exchange Act with respect to matters set forth in this Section 1.10, and (9) a representation whether such stockholder, such 
beneficial owner and/or any Stockholder Associated Person intends or is part of a group that intends (x) to deliver a proxy 
statement and/or form of proxy to holders of at least 

6

 
 
the percentage of the Corporation’s outstanding capital stock reasonably believed by such stockholder or such beneficial owner to 
be sufficient to elect the nominee (and such representation shall be included in any such proxy statement and form of proxy) 
and/or (y) otherwise to solicit proxies or votes from stockholders in support of such nomination (and such representation shall be 
included in any such solicitation materials).  Not later than 10 days after the record date for the meeting, the information required 
by Items (A)(1)-(5) and (B)(1)-(6) of the prior sentence shall be supplemented by the stockholder giving the notice to provide 
updated information as of the record date.  In addition, to be effective, the stockholder’s notice must also be accompanied by the 
written consent of the proposed nominee to being named in the Corporation’s proxy statement and accompanying proxy card as a 
nominee and to serve as a director if elected.  In addition, to be in proper form, such notice must be accompanied by (1) a written 
questionnaire with respect to the background and qualification of each proposed nominee completed by such proposed nominee 
in the form required by the Corporation (which form the stockholder shall request in writing from the Secretary of the 
Corporation and which the Secretary shall provide to such stockholder within 10 days of receiving such request) and (2) each 
such proposed nominee’s written representation and agreement in the form required by the Corporation (which form the 
stockholder shall request in writing from the Secretary of the Corporation and which the Secretary shall provide to such 
stockholder within 10 days of receiving such request) that: (A) such proposed nominee is not and will not become party to any 
agreement, arrangement or understanding with, and has not given any commitment or assurance to, any person or entity as to 
how such proposed nominee, if elected as a director of the corporation, will act or vote on any issue or question that has not been 
disclosed to the corporation; (B) such proposed nominee is not and will not become a party to any agreement, arrangement or 
understanding with any person or entity other than the corporation with respect to any direct or indirect compensation, 
reimbursement or indemnification in connection with service or action as a director that has not been disclosed to the 
Corporation; and (C) such proposed nominee will, if elected as a director of the Corporation, comply with all of the Corporation’s 
corporate governance, conflict of interest, confidentiality and stock ownership and trading policies and guidelines, and any other 
Corporation policies and guidelines applicable to directors. Notwithstanding anything herein to the contrary, a stockholder shall 
not have complied with this Section 1.10(b) if the stockholder, beneficial owner and/or any Stockholder Associated Person 
solicits or does not solicit, as the case may be, proxies or votes in support of such stockholder’s nominee in contravention of the 
representations with respect thereto required by this Section 1.10.

(c)

Such notice must also be accompanied by a representation as to whether or not such stockholder, beneficial 
owner and/or any Stockholder Associated Person intends to solicit proxies in support of any director nominees other than the 
Corporation’s nominees in accordance with Rule 14a-19 under the Exchange Act, and, where such stockholder, beneficial owner 
and/or Stockholder Associated Person intends to so solicit proxies, the notice and information required by Rule 14a-19(b) under 
the Exchange Act. Notwithstanding anything to the contrary in these bylaws, unless otherwise required by law, if any 
stockholder, beneficial owner and/or Stockholder Associated Person (i) provides notice pursuant to Rule 14a-19(b) under the 
Exchange Act and (ii) subsequently fails to comply with the requirements of Rule 14a-19(a)(2) and Rule 14a-19(a)(3) under the 
Exchange Act (or fails to timely provide reasonable evidence sufficient to satisfy the Corporation that such stockholder, 
beneficial owner and/or Stockholder Associated Person has met the requirements of Rule 14a-19(a)(3) promulgated under the 

7

 
 
Exchange Act in accordance with the following sentence), then the nomination of each of the director nominees proposed by such 
stockholder, beneficial owner and/or Stockholder Associated Person shall be disregarded, notwithstanding that proxies or votes in 
respect of the election of such proposed nominees may have been received by the Corporation (which proxies and votes shall be 
disregarded).  Upon request by the Corporation, if any stockholder, beneficial owner and/or Stockholder Associated Person 
provides notice pursuant to Rule 14a-19(b) under the Exchange Act, such stockholder, beneficial owner and/or Stockholder 
Associated Person shall deliver to the Corporation, no later than five business days prior to the applicable meeting, reasonable 
evidence that it has met the requirements of Rule 14a-19(a)(3) under the Exchange Act.

(d)

The chairperson of any meeting (and, in advance of any meeting, the Board of Directors) shall have the power 
and duty to determine whether a nomination was made in accordance with the provisions of this Section 1.10 (including whether 
the stockholder, beneficial owner and/or any Stockholder Associated Person did or did not so solicit, as the case may be, proxies 
or votes in support of such stockholder’s nominee in compliance with the representations with respect thereto required by this 
Section 1.10), and if the chairperson (or the Board of Directors) should determine that a nomination was not made in accordance 
with the provisions of this Section 1.10, the chairperson shall so declare to the meeting and such nomination shall not be brought 
before the meeting. 

(e)

Except as otherwise required by law (including Rule 14a-19 under the Exchange Act), nothing in this Section 
1.10 of Article I shall obligate the Corporation or the Board of Directors to include in any proxy statement, proxy card or other 
stockholder communication distributed on behalf of the Corporation or the Board of Directors the name of or other information 
with respect to any nominee for director submitted by a stockholder.

(f)

Notwithstanding the foregoing provisions of this Section 1.10, unless otherwise required by law, if the 

stockholder (or a qualified representative of the stockholder) does not appear at the meeting to present a nomination, such 
nomination shall not be brought before the meeting, notwithstanding that proxies in respect of such nominee may have been 
received by the Corporation.  For purposes of this Section 1.10, to be considered a “qualified representative of the stockholder”, a 
person must be a duly authorized officer, manager or partner of such stockholder or must be authorized by a written instrument 
executed by such stockholder or an electronic transmission delivered by such stockholder to act for such stockholder as proxy at 
the meeting of stockholders and such person must produce such written instrument or electronic transmission, or a reliable 
reproduction of the written instrument or electronic transmission, at the meeting of stockholders.

(g)

For purposes of this Section 1.10, “public announcement” shall include disclosure in a press release reported by 

the Dow Jones News Service, Associated Press or comparable national news service or in a document publicly filed by the 
Corporation with the Securities and Exchange Commission pursuant to Section 13, 14 or 15(d) of the Exchange Act.

(h)

Unless the Corporation elects otherwise, a stockholder’s notice to the Corporation of nominations shall be in 

writing exclusively (and not in an electronic transmission) and shall be delivered exclusively by hand (including, without 
limitation, overnight courier service) or by 

8

 
 
certified or registered mail, return receipt requested, and the Corporation shall not be required to accept delivery of any document 
not in such written form or so delivered.

Section 1.11.Notice of Business at Annual Meetings.

(a)

At any annual meeting, only such business shall be conducted as shall have been properly brought before the 

meeting.  To be properly brought before an annual meeting, business must be (1) specified in the notice of meeting (or any 
supplement thereto) given by or at the direction of the Board of Directors, (2) otherwise properly brought before the meeting by 
or at the direction of the Board of Directors, or (3) properly brought before the meeting by a stockholder.  For business to be 
properly brought before an annual meeting by a stockholder, (i) if such business relates to the nomination of a person for election 
as a director of the Corporation, the procedures in Section 1.10 must be complied with and (ii) if such business relates to any 
other matter, the business must constitute a proper matter under Delaware law for stockholder action and the stockholder must (x) 
have given timely notice thereof in writing to the Secretary in accordance with the procedures in, and otherwise complied with, 
Section 1.11(b), (y) be a stockholder of record who is entitled to vote on such business on the date of the giving of such notice 
and on the record date for the determination of stockholders entitled to vote at such annual meeting and (z) be entitled to vote at 
such annual meeting.

(b)

To be timely, a stockholder’s notice must be received in writing by the Secretary at the principal executive office 

of the Corporation not less than 90 days nor more than 120 days prior to the first anniversary of the preceding year’s annual 
meeting; provided, however, that in the event that the date of the annual meeting is advanced by more than 30 days, or delayed by 
more than 60 days, from the first anniversary of the preceding year’s annual meeting, or if no annual meeting was held or deemed 
to have been held in the preceding year, a stockholder’s notice must be so received not earlier than the 120th day prior to such 
annual meeting and not later than the close of business on the later of (x) the 90th day prior to such annual meeting and (y) the 
tenth day following the day on which notice of the date of such annual meeting was given or public announcement of the date of 
such annual meeting was made, whichever first occurs.  In no event shall the adjournment or postponement of an annual meeting 
(or the public announcement thereof) commence a new time period (or extend any time period) for the giving of a stockholder’s 
notice.

The stockholder’s notice to the Secretary shall set forth:  (A) as to each matter the stockholder proposes to bring before 

the annual meeting (1) a brief description of the business desired to be brought before the annual meeting, (2) the text of the 
proposal (including the exact text of any resolutions proposed for consideration and, in the event that such business includes a 
proposal to amend the bylaws, the exact text of the proposed amendment), and (3) the reasons for conducting such business at the 
annual meeting, and (B) as to the stockholder giving the notice and the beneficial owner, if any, on whose behalf the proposal is 
being made (1) the name and address of such stockholder, as they appear on the Corporation’s books, and of such beneficial 
owner, (2) the class and series and number of shares of stock of the Corporation that are, directly or indirectly, owned, 
beneficially or of record, by such stockholder and such beneficial owner, (3) a description of any material interest of such 
stockholder, such beneficial owner and/or any Stockholder Associated Person in the business proposed to be brought before the 
annual meeting, (4) a description of any agreement, arrangement or understanding between or among such 

9

 
 
stockholder, such beneficial owner, any Stockholder Associated Person and any other person or persons (including their names) 
in connection with the proposal of such business or who may participate in the solicitation of proxies in favor of such proposal, 
(5) a description of any agreement, arrangement or understanding (including any derivative or short positions, swaps, profit 
interests, options, warrants, convertible securities, stock appreciation or similar rights, hedging transactions, and borrowed or 
loaned shares) that has been entered into by, or on behalf of, such stockholder, such beneficial owner and/or any Stockholder 
Associated Person, the effect or intent of which is to mitigate loss to, manage risk or benefit of share price changes for, or 
increase or decrease the voting power of, such stockholder, such beneficial owner and/or any Stockholder Associated Person with 
respect to shares of stock of the corporation, (6) any other information relating to such stockholder, such beneficial owner and/or 
any Stockholder Associated Person that would be required to be disclosed in a proxy statement or other filings required to be 
made in connection with solicitations of proxies for the business proposed pursuant to Section 14 of the Exchange Act and the 
rules and regulations promulgated thereunder, (7) a representation that such stockholder intends to appear in person or by proxy 
at the annual meeting to bring such business before the meeting, (8) a representation that such stockholder, such beneficial owner 
and/or any Stockholder Associated Person has complied, and will comply, with all applicable requirements of state law and the 
Exchange Act with respect to matters set forth in this Section 1.11, and (9) a representation whether such stockholder, such 
beneficial owner and/or any Stockholder Associated Person intends or is part of a group that intends (x) to deliver a proxy 
statement and/or form of proxy to holders of at least the percentage of the Corporation’s outstanding capital stock required to 
approve or adopt the proposal (and such representation shall be included in any such proxy statement and form of proxy) and/or 
(y) otherwise to solicit proxies or votes from stockholders in support of such proposal (and such representation shall be included 
in any such solicitation materials).  Not later than 10 days after the record date for the meeting, the information required by Items 
(A)(3) and (B)(1)-(6) of the prior sentence shall be supplemented by the stockholder giving the notice to provide updated 
information as of the record date.  Notwithstanding anything in these bylaws to the contrary, no business shall be conducted at 
any annual meeting of stockholders except in accordance with the procedures in this Section 1.11; provided that any stockholder 
proposal that complies with Rule 14a-8 of the proxy rules (or any successor provision) promulgated under the Exchange Act and 
is to be included in the Corporation’s proxy statement for an annual meeting shall be deemed to comply with the notice 
requirements of this Section 1.11.  Notwithstanding anything herein to the contrary, a stockholder shall not have complied with 
this Section 1.11(b) if the stockholder, beneficial owner and/or any Stockholder Associated Person solicits or does not solicit, as 
the case may be, proxies or votes in support of such stockholder’s proposal in contravention of the representations with respect 
thereto required by this Section 1.11.

(c)

The chairperson of any annual meeting (and, in advance of any annual meeting, the Board of Directors) shall 
have the power and duty to determine whether business was properly brought before the annual meeting in accordance with the 
provisions of this Section 1.11 (including whether the stockholder, beneficial owner and/or any Stockholder Associated Person 
did or did not so solicit, as the case may be, proxies or votes in support of such stockholder’s proposal in compliance with the 
representation with respect thereto required by this Section 1.11), and if the chairperson (or the Board of Directors) should 
determine that business was not properly brought before the annual meeting in accordance with the provisions 

10

 
 
of this Section 1.11, the chairperson shall so declare to the meeting and such business shall not be brought before the annual 
meeting.

(d)

Except as otherwise required by law, nothing in this Section 1.11 shall obligate the Corporation or the Board of 

Directors to include in any proxy statement or other stockholder communication distributed on behalf of the Corporation or the 
Board of Directors information with respect to any proposal submitted by a stockholder.

(e)

Notwithstanding the foregoing provisions of this Section 1.11, unless otherwise required by law, if the 

stockholder (or a qualified representative of the stockholder) does not appear at the annual meeting to present business, such 
business shall not be considered, notwithstanding that proxies in respect of such business may have been received by the 
corporation.

(f)

For purposes of this Section 1.11, the terms “qualified representative of the stockholder” and “public 

announcement” shall have the same meaning as in Section 1.10.

(g)

Unless the Corporation elects otherwise, a stockholder’s notice to the Corporation of other business shall be in 

writing exclusively (and not in an electronic transmission) and shall be delivered exclusively by hand (including, without 
limitation, overnight courier service) or by certified or registered mail, return receipt requested, and the Corporation shall not be 
required to accept delivery of any document not in such written form or so delivered.

Section 2.1.General Powers and Qualifications of Directors.

SECTION 2 — BOARD OF DIRECTORS

The business and affairs of the Corporation shall be managed by or under the direction of the Board of Directors.  In 

addition to the powers and authorities that these bylaws expressly confer upon them, the Board of Directors may exercise all such 
powers of the Corporation and do all such lawful acts and things as are not by the Delaware General Corporation Law (the 
“DGCL”) or by the Certificate of Incorporation or by these bylaws required to be exercised or done by the stockholders.  
Directors need not be stockholders of the Corporation to be qualified for election or service as a director of the Corporation.

Section 2.2.Removal; Resignation.

The directors of the Corporation may be removed in accordance with the Certificate of Incorporation and the DGCL.  

Any director may resign at any time upon notice given in writing, including by electronic transmission, to the Corporation.

Section 2.3.Regular Meetings.

Regular meetings of the Board of Directors shall be held at the place, if any, on the date and at the hour as shall have 

been established by the Board of Directors and publicized among all directors.  A notice of a regular meeting, the date of which 
has been so publicized, shall not be required.

11

 
 
Section 2.4.Special Meetings.

Special meetings of the Board of Directors may be called by (a) the Chairperson of the Board of Directors, (b) the Chief 
Executive Officer of the Corporation or (c) two or more directors then in office, and shall be held at the place, if any, on the date 
and at the hour as he, she or they shall fix.  Notice of the place, if any, date and hour of each special meeting shall be given to 
each director either (a) by mailing written notice thereof not less than five days before the meeting, or (b) by telephone, facsimile 
or other means of electronic transmission providing notice thereof not less than twenty-four hours before the meeting.  Any and 
all business may be transacted at a special meeting of the Board of Directors.

Section 2.5.Quorum.

At any meeting of the Board of Directors, a majority of the total number of directors then in office shall constitute a 
quorum for all purposes.  If a quorum shall fail to attend any meeting, a majority of those present may adjourn the meeting to 
another place, if any, date or hour, without further notice or waiver thereof.

Section 2.6.Participation in Meetings by Conference Telephone or Other Communications Equipment.

Members of the Board of Directors, or of any committee thereof, may participate in a meeting of the Board of Directors 

or committee thereof by means of conference telephone or other communications equipment by means of which all directors 
participating in the meeting can hear each other director, and such participation shall constitute presence in person at the meeting.

Section 2.7.Conduct of Business.

At any meeting of the Board of Directors, business shall be transacted in the order and manner that the Board of 
Directors may from time to time determine, and all matters shall be determined by the vote of a majority of the directors present, 
provided a quorum is present at the time such matter is acted upon, except as otherwise provided in the Certificate of 
Incorporation or these bylaws or required by applicable law.  The Board of Directors or any committee thereof may take action 
without a meeting if all members thereof consent thereto in writing or by electronic transmission, and the writing or writings, or 
electronic transmission or electronic transmissions, are filed with the minutes of proceedings of the Board of Directors or any 
committee thereof.  Such filing shall be in paper form if the minutes are maintained in paper form and shall be in electronic form 
if the minutes are maintained in electronic form.

Section 2.8.Compensation of Directors.

The Board of Directors shall be authorized to fix the compensation of directors.  The directors of the Corporation shall 

be paid their expenses, if any, of attendance at each meeting of the Board of Directors and may be reimbursed a fixed sum for 
attendance at each meeting of the Board of Directors, paid an annual retainer or paid other compensation, including equity 
compensation, as the Board of Directors determines.  No such payment shall preclude any director from serving the Corporation 
in any other capacity and receiving compensation therefor.  

12

 
 
Members of committees shall have their expenses, if any, of attendance of each meeting of such committee reimbursed and may 
be paid compensation for attending committee meetings or being a member of a committee.

Section 2.9.Emergency Bylaws.  

In the event of any emergency, disaster, catastrophe or other similar emergency condition of a type described in Section 
110(a) of the DGCL (an “Emergency”), notwithstanding any different or conflicting provisions in the DGCL, the Certificate of 
Incorporation or these bylaws, during such Emergency:

(a)

Notice.  A meeting of the Board of Directors or a committee thereof may be called by any director, the 

Chairman of the Board, the Chief Executive Officer, the President or the Secretary by such means as, in the judgment of the 
person calling the meeting, may be feasible at the time, and notice of any such meeting of the Board of Directors or any 
committee may be given, in the judgment of the person calling the meeting, only to such directors as it may be feasible to reach 
at the time and by such means as may be feasible at the time.  Such notice shall be given at such time in advance of the meeting 
as, in the judgment of the person calling the meeting, circumstances permit.

(b)
constitute a quorum.

Quorum.  The director or directors in attendance at a meeting called in accordance with Section 2.9(a) shall 

(c)

Liability.  No officer, director or employee acting in accordance with this Section 2.9 shall be liable except for 
willful misconduct.  No amendment, repeal or change to this Section 2.9 shall modify the prior sentence with regard to actions 
taken prior to the time of such amendment, repeal or change.

SECTION 3— COMMITTEES

The Board of Directors may designate committees of the Board of Directors, with such lawfully delegable powers and 
duties as it thereby confers, to serve at the pleasure of the Board of Directors and shall, for those committees, appoint a director 
or directors to serve as the member or members, designating, if it desires, other directors as alternate members who may replace 
any absent or disqualified member at any meeting of such committee.  In the absence or disqualification of any member of any 
committee and any alternate member in his or her place, the member or members of the committee present at the meeting and not 
disqualified from voting, whether or not he or she or they constitute a quorum, may by unanimous vote appoint another member 
of the Board of Directors to act at the meeting in the place of the absent or disqualified member.  All provisions of this Section 3 
are subject to, and nothing in this Section 3 shall in any way limit the exercise, or method or timing of the exercise of, the rights 
of any person granted by the Corporation with respect to the existence, duties, composition or conduct of any committee of the 
Board of Directors.

Section 4.1.Generally.

SECTION 4 — OFFICERS

13

 
 
The officers of the Corporation shall consist of a President, one or more Vice Presidents, a Secretary, a Treasurer and 
other officers as may from time to time be appointed by the Board of Directors.  Each officer shall hold office until his or her 
successor is elected and qualified or until his or her earlier resignation or removal.  Any number of offices may be held by the 
same person.  The salaries of officers appointed by the Board of Directors shall be fixed from time to time by the Board of 
Directors or a committee thereof or by the officers as may be designated by resolution of the Board of Directors.

Section 4.2.President.

Unless otherwise determined by the Board of Directors, the President shall be the Chief Executive Officer of the 

Corporation.  Subject to the provisions of these bylaws and to the direction of the Board of Directors, he or she shall have the 
responsibility for the general management and control of the business and affairs of the Corporation and shall perform all duties 
and have all powers that are commonly incident to the office of chief executive or which are delegated to him or her by the Board 
of Directors.  He or she shall have the power to sign all stock certificates, contracts and other instruments of the Corporation that 
are authorized and shall have general supervision and direction of all of the other officers, employees and agents of the 
Corporation.

Section 4.3.Vice Presidents.

Each Vice President shall have the powers and duties delegated to him or her by the Board of Directors or the President.  
One Vice President may be designated by the Board of Directors to perform the duties and exercise the powers of the President in 
the event of the President’s absence or disability.

Section 4.4.Treasurer.

The Treasurer shall have the responsibility for maintaining the financial records of the Corporation.  He or she shall 

make such disbursements of the funds of the Corporation as are authorized and shall render from time to time an account to the 
Board of Directors of all such transactions and of the financial condition of the Corporation.  The Treasurer shall also perform 
other duties as the Board of Directors may from time to time prescribe.

Section 4.5.Secretary.

The Secretary shall issue all authorized notices for, and shall keep minutes of, all meetings of the stockholders and the 
Board of Directors.  He or she shall have charge of the corporate books and shall perform other duties as the Board of Directors 
may from time to time prescribe.

Section 4.6.Delegation of Authority.

The Board of Directors may from time to time delegate the powers or duties of any officer to any other officer or agent, 

notwithstanding any provision hereof.

Section 4.7.Removal.

14

 
 
The Board of Directors may remove any officer of the Corporation at any time, with or without cause, without prejudice 

to the rights, if any, of such officer under any contract to which it is a party.  Any officer may resign at any time upon written 
notice to the Corporation, without prejudice to the rights, if any, of the Corporation under any contract to which such officer is a 
party.  If any vacancy occurs in any office of the Corporation, the Board of Directors may elect a successor to fill such vacancy 
for the remainder of the unexpired term and until a successor shall have been duly chosen and qualified.

Section 4.8.Action with Respect to Securities of Other Companies.

Unless otherwise directed by the Board of Directors, the President, or any officer of the Corporation authorized by the 

President, shall have power to vote and otherwise act on behalf of the Corporation, in person or by proxy, at any meeting of 
stockholders or equityholders of, or with respect to any action of, stockholders or equityholders of any other entity in which the 
Corporation may hold securities and otherwise to exercise any and all rights and powers which the Corporation may possess by 
reason of its ownership of securities in such other entity.

Section 5.1.Certificates of Stock.

SECTION 5 — STOCK

Shares of the capital stock of the Corporation may be certificated or uncertificated, as provided in the DGCL.  Stock 

certificates shall be signed by, or in the name of the Corporation by any two authorized officers of the Corporation, certifying the 
number of shares owned by such stockholder.  Any signatures on a certificate may be by facsimile.  Although any officer, transfer 
agent or registrar whose manual or facsimile signature is affixed to such a certificate ceases to be such officer, transfer agent or 
registrar before such certificate has been issued, it may nevertheless be issued by the Corporation with the same effect as if such 
officer, transfer agent or registrar were still such at the date of its issue.

Section 5.2.Transfers of Stock.

Transfers of stock shall be made only upon the transfer books of the Corporation kept at an office of the Corporation 

(within or without the State of Delaware) or by transfer agents designated to transfer shares of the stock of the Corporation.

Section 5.3.Lost, Stolen or Destroyed Certificates.

In the event of the loss, theft or destruction of any certificate of stock or uncertificated shares, another may be issued in 

its place pursuant to regulations as the Board of Directors may establish concerning proof of the loss, theft or destruction and 
concerning the giving of a satisfactory bond or indemnity.

Section 5.4.Regulations.

The issue, transfer, conversion and registration of certificates of stock of the Corporation shall be governed by other 

regulations as the Board of Directors may establish.

15

 
 
Section 5.5.Record Date.

(a)

In order that the Corporation may determine the stockholders entitled to notice of any meeting of stockholders 

or any adjournment thereof, the Board of Directors may fix a record date, which record date shall not precede the date upon 
which the resolution fixing the record date is adopted by the Board of Directors, and which record date shall, unless otherwise 
required by law, not be more than sixty (60) nor less than ten (10) days before the date of such meeting.  If the Board of Directors 
so fixes a date, such date shall also be the record date for determining the stockholders entitled to vote at such meeting unless the 
Board of Directors determines, at the time it fixes such record date, that a later date on or before the date of the meeting shall be 
the date for making such determination.  If no record date is fixed by the Board of Directors, the record date for determining 
stockholders entitled to notice of or to vote at a meeting of stockholders shall be at the close of business on the day preceding the 
day on which notice is given, or, if notice is waived, at the close of business on the day preceding the day on which the meeting is 
held.  A determination of stockholders of record entitled to notice of or to vote at a meeting of stockholders shall apply to any 
adjournment of the meeting; provided, however, that the Board of Directors may fix a new record date for determination of 
stockholders entitled to vote at the adjourned meeting, and in such case shall also fix as the record date for stockholders entitled 
to notice of such adjourned meeting the same or an earlier date as that fixed for determination of stockholders entitled to vote in 
accordance herewith at the adjourned meeting.

(b)

In order that the Corporation may determine the stockholders entitled to receive payment of any dividend or 

other distribution or allotment of any rights, or entitled to exercise any rights in respect of any change, conversion or exchange of 
stock or for the purpose of any other lawful action, the Board of Directors may fix a record date, which shall not be more than 
sixty (60) days prior to such other action.  If no such record date is fixed, the record date for determining stockholders for any 
such purpose shall be at the close of business on the day on which the Board of Directors adopts the resolution relating thereto.

Section 6.1.Indemnification.

SECTION 6 — INDEMNIFICATION

The Corporation shall indemnify, defend and hold harmless, to the fullest extent permitted by applicable law as it 

presently exists or may hereafter be amended, any person (an “Indemnitee”) who was or is made, or is threatened to be made, a 
party or is otherwise involved in any action, suit or proceeding, whether civil, criminal, administrative or investigative (a 
“Proceeding”), by reason of the fact that he or she, or a person for whom he or she is the legal representative, is or was a director 
of the Corporation or an officer of the Corporation elected by the Board of Directors or, while a director of the Corporation or an 
officer of the Corporation elected by the Board of Directors, is or was serving at the request of the Corporation as a director, 
officer, employee, member, trustee or agent of another corporation or of a partnership, joint venture, trust, nonprofit entity or 
other enterprise (including service with respect to employee benefit plans) (any such entity, an “Other Entity”), against all 
liability and loss suffered (including expenses (including attorneys’ fees and expenses), judgments, fines and amounts paid in 
settlement actually and reasonably incurred by such Indemnitee in connection with such Proceeding).  Notwithstanding the 
preceding sentence, the Corporation shall be 

16

 
 
required to indemnify an Indemnitee in connection with a Proceeding (or part thereof) commenced by such Indemnitee only if the 
commencement of such Proceeding (or part thereof) by the Indemnitee was authorized by the Board of Directors or the 
Proceeding (or part thereof) relates to the enforcement of the Corporation’s obligations under this Section 6.1.

Section 6.2.Advancement of Expenses.

The Corporation shall to the fullest extent permitted by applicable law pay, on an as-incurred basis, all expenses 
(including attorneys’ fees and expenses) actually and reasonably incurred by an Indemnitee in defending any proceeding, which 
may be indemnifiable pursuant to this Section 6, in advance of its final disposition.  Such advancement shall be unconditional, 
unsecured and interest free and shall be made without regard to Indemnitee’s ability to repay any expenses advanced; provided, 
however, that, to the extent required by law, such payment of expenses in advance of the final disposition of the Proceeding shall 
be made only upon receipt of an unsecured undertaking by the Indemnitee to repay all amounts advanced if it should be 
ultimately determined that the Indemnitee is not entitled to be indemnified under this Section 6 or otherwise.

Section 6.3.Claims.

If a claim for indemnification (following the final disposition of such proceeding) or advancement of expenses under this 

Section 6 is not paid in full within sixty (60) days after a written claim therefor by the Indemnitee has been received by the 
Corporation, the Indemnitee may file suit to recover the unpaid amount of such claim and, if successful in whole or in part, shall 
be entitled to be paid the expense of prosecuting such claim to the fullest extent permitted by law.  In any such action the 
Corporation shall have the burden of proving that the Indemnitee is not entitled to the requested indemnification or advancement 
of expenses under applicable law.

Section 6.4.Insurance.

The Corporation shall have the power to purchase and maintain insurance on behalf of any person who is or was a 

director, officer, trustee, employee, member or agent of the Corporation, or was serving at the request of the Corporation as a 
director, officer, trustee, employee, member or agent of an Other Entity, against any liability asserted against the person and 
incurred by the person in any such capacity, or arising out of his or her status as such, whether or not the Corporation would have 
the power or the obligation to indemnify such person against such liability under the provisions of this Section 6 or the DGCL.

Section 6.5.Non-Exclusivity of Rights; Other Indemnification.

The rights conferred on any Indemnitee by this Section 6 are not exclusive of other rights arising under any bylaw, 

agreement, vote of directors or stockholders or otherwise, and shall inure to the benefit of the heirs and legal representatives of 
such Indemnitee.  This Section 6 shall not limit the right of the Corporation, to the extent and in the manner permitted by law, to 
indemnify and to advance expenses to Indemnitees or persons other than Indemnitees when and as authorized by appropriate 
corporate action, including by separate agreement with the Corporation.

17

 
 
Section 6.6.Amounts Received from an Other Entity.

Subject to any written agreement between the Indemnitee and the Corporation to the contrary, the Corporation’s 
obligation, if any, to indemnify or to advance expenses to any Indemnitee who was or is serving at the Corporation’s request as a 
director, officer, employee or agent of an Other Entity shall be reduced by any amount such Indemnitee may collect as 
indemnification or advancement of expenses from such Other Entity.

Section 6.7.Amendment or Repeal.

Any right to indemnification or to advancement of expenses of any Indemnitee arising hereunder shall not be eliminated 

or impaired by an amendment to or repeal of this Section 6 after the occurrence of the act or omission that is the subject of the 
civil, criminal, administrative or investigative action, suit, proceeding or other matter for which indemnification or advancement 
of expenses is sought.

Section 6.8.Reliance.

Indemnitees who after the date of the adoption of this Section 6 become or remain an Indemnitee described in Section 

6.1 will be conclusively presumed to have relied on the rights to indemnity, advancement of expenses and other rights contained 
in this Section 6 in entering into or continuing the service.  The rights to indemnification and to the advancement of expenses 
conferred in this Section 6 will apply to claims made against any Indemnitee described in Section 6.1 arising out of acts or 
omissions that occurred or occur either before or after the adoption of this Section 6 in respect of service as a director or officer 
of the Corporation or other service described in Section 6.1.

Section 6.9.Successful Defense.

In the event that any proceeding to which an Indemnitee is a party is resolved in any manner other than by adverse 

judgment against the Indemnitee (including settlement of such proceeding with or without payment of money or other 
consideration) it shall be presumed that the Indemnitee has been successful on the merits or otherwise in such proceeding for 
purposes of Section 145(c) of the DGCL.  Anyone seeking to overcome this presumption shall have the burden of proof and the 
burden of persuasion by clear and convincing evidence.

Section 6.10.Merger or Consolidation.

For purposes of this Section 6, references to the “Corporation” shall include, in addition to the resulting corporation, any 

constituent corporation (including any constituent of a constituent) absorbed in a consolidation or merger which, if its separate 
existence had continued, would have had power and authority to indemnify its directors, officers and employees or agents, so that 
any person who is or was a director, officer, employee or agent of such constituent corporation, or is or was serving at the request 
of such constituent corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or 
other enterprise, shall stand in the same position under this Section 6 with respect to the resulting or surviving corporation as he 
or she would have with respect to such constituent corporation if its separate existence had continued.

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Section 6.11.Savings Clause.

If this Section 6 or any portion hereof shall be invalidated on any ground by any court of competent jurisdiction, then the 

Corporation shall nevertheless indemnify and advance expenses to each person entitled to indemnification under Section 6.1 to 
the fullest extent permitted by any applicable portion of this Section 6 that shall not have been invalidated and to the fullest extent 
permitted by applicable law.

Section 7.1.Notices.

SECTION 7 — NOTICES

Except as otherwise provided herein or permitted by applicable law, notices to directors and stockholders shall be in 

writing and delivered personally or mailed to the directors or stockholders at their addresses appearing on the books of the 
Corporation.  If mailed, notice to a stockholder of the Corporation shall be deemed given when deposited in the mail, postage 
prepaid, directed to a stockholder at such stockholder’s address as it appears on the records of the Corporation.  Without limiting 
the manner by which notice otherwise may be given effectively to stockholders, any notice to stockholders of the Corporation 
may be given by electronic transmission in the manner provided in Section 232 of the DGCL.

Section 7.2.Waivers.

A written waiver of any notice, signed by a stockholder or director, or a waiver by electronic transmission by such 
person or entity, whether given before or after the time of the event for which notice is to be given, shall be deemed equivalent to 
the notice required to be given to such person or entity.  Neither the business nor the purpose of any meeting need be specified in 
the waiver.  Attendance at any meeting shall constitute waiver of notice except attendance for the sole purpose of objecting, at the 
beginning of the meeting, to the transaction of any business because the meeting is not lawfully called or convened.

SECTION 8 — EXCLUSIVE FORUM FOR CERTAIN ACTIONS

Unless the Corporation consents in writing to the selection of an alternative forum, the federal district courts of the 

United States shall be the exclusive forum for the resolution of any complaint asserting a cause of action arising under the 
Securities Act of 1933.  Any person or entity purchasing or otherwise acquiring any interest in any security of the Corporation 
shall be deemed to have notice of and consented to this provision.

Section 9.1.Corporate Seal.

SECTION 9 — MISCELLANEOUS

The Board of Directors may provide a suitable seal, containing the name of the Corporation, which seal shall be in the 
charge of the Secretary.  If and when so directed by the Board of Directors, duplicates of the seal may be kept and used by the 
Treasurer or by an Assistant Secretary or Assistant Treasurer.

19

 
 
Section 9.2.Reliance upon Books, Reports, and Records.

Each director and each member of any committee designated by the Board of Directors shall, in the performance of his 

or her duties, be fully protected in relying in good faith upon the books and records of the Corporation and upon such 
information, opinions, reports or statements presented to the Corporation by any of its officers, agents or employees, or 
committees of the Board of Directors so designated, or by any other person or entity as to matters which such director or 
committee member reasonably believes are within such other person’s or entity’s professional or expert competence and that has 
been selected with reasonable care by or on behalf of the Corporation.

Section 9.3.Fiscal Year.

The fiscal year of the Corporation shall be as fixed by the Board of Directors.

Section 9.4.Time Periods.

In applying any provision of these bylaws that requires that an act be done or not be done a specified number of days 

before an event or that an act be done during a specified number of days before an event, calendar days shall be used, the day of 
the doing of the act shall be excluded, and the day of the event shall be included.

SECTION 10 — AMENDMENTS

These bylaws may be altered, amended or repealed in accordance with the Certificate of Incorporation and the DGCL.

SECTION 11 — SEVERABILITY

If any provision or provisions of these bylaws shall be held to be invalid, illegal or unenforceable as applied to any 

circumstance for any reason whatsoever: (i) the validity, legality and enforceability of such provisions in any other circumstance 
and of the remaining provisions of these bylaws (including each portion of any paragraph of these bylaws containing any such 
provision held to be invalid, illegal or unenforceable that is not itself held to be invalid, illegal or unenforceable) shall not in any 
way be affected or impaired thereby and (ii) to the fullest extent possible, the provisions of these bylaws (including each such 
portion of any paragraph of these bylaws containing any such provision held to be invalid, illegal or unenforceable) shall be 
construed so as to permit the Corporation to protect its directors, officers, employees and agents from personal liability in respect 
of their good faith service to or for the benefit of the Corporation to the fullest extent permitted by law.

20

 
 
FOURTH AMENDMENT TO LEASE

This Fourth Amendment to Lease (this “Fourth Amendment”) is made as of December 7, 2022 by and between MIT 238 MAIN 
STREET  LEASEHOLD  LLC,  a  Massachusetts  charitable  corporation  with  an  address  c/o  MIT  Cambridge  Real  Estate  LLC,  One 
Broadway,  Suite  09-200,  Cambridge,  MA  02142  (“Landlord”),  and  BEAM  THERAPEUTICS,  INC.,  a  Delaware  corporation  with  an 
address of 26 Lansdowne Street, 2nd Floor, Cambridge, MA 02139 (“Tenant”).

W I T N E S S E T H

WHEREAS, Landlord and Tenant are the current parties to that certain Lease dated April 24, 2019, as amended by that certain 
First  Amendment  to  Lease  dated  as  of  April  14,  2020,  as  further  amended  by  that  certain  Second  Amendment  to  Lease  dated  as  of 
November 17, 2020 and as further amended by that certain Third Amendment to Lease (the “Third Amendment”) dated as of August 24, 
2021  (collectively,  the  “Lease”),  pursuant  to  which  Landlord  is  leasing  to  Tenant  approximately  130,258  rentable  square  feet  (as  more 
particularly described in the Lease, the “Premises”) located on the sixth, seventh, eighth, ninth and tenth floors of the Laboratory Addition 
to the building located at 238 Main Street, Cambridge, MA;

WHEREAS, pursuant to the Third Amendment, (a) the Expansion Space was added to the Premises demised under the Lease, and 

(b) Landlord was required to perform Tenant’s ES Fitout;

WHEREAS, Tenant desires to assume responsibility for the performance of Tenant’s ES Fitout using the Approved Contractor;

WHEREAS, if the performance of Tenant’s ES Fitout had proceeded as contemplated by the Third Amendment, Landlord would 
have used commercially reasonable efforts to substantially complete Tenant’s ES Fitout on or before January 15, 2023, subject to day-for-
day delays on account of Landlord’s Force Majeure and Tenant Delays; 

WHEREAS, Landlord and Tenant have agreed that Tenant will be responsible for the performance of Tenant’s ES Fitout on the 

terms and conditions hereinafter set forth; and

WHEREAS, Landlord and Tenant desire to amend the Lease as hereinafter set forth.

NOW, THEREFORE, in consideration of the covenants herein reserved and contained, and other good and valuable consideration, 

the receipt and sufficiency of which are hereby acknowledged, Landlord and Tenant hereby agree as follows:

1. Recitals;  Capitalized  Terms.  The  foregoing  recitals  are  hereby  incorporated  by  reference.  All  capitalized  terms  not  otherwise 

defined herein shall have the meanings ascribed to them as set forth in the Lease.

2. ES Dates. Notwithstanding anything to the contrary set forth in the Lease, (a) the “ES Commencement Date” shall mean the date
on which the Expansion Space is delivered to Tenant (currently estimated to occur promptly after the full execution hereof); and (b) the “ES 
Rent Commencement Date” shall mean March 15, 2023, subject to day-for-day delays on account of Landlord Delays (as defined in Exhibit 
A). Tenant acknowledges and agrees that there are no Landlord Delays as of the date of this Fourth Amendment.

3. Condition. Section 2(b) of the Third Amendment is hereby deleted in its entirety. Tenant acknowledges and agrees that Tenant shall 
lease  the  Expansion  Space  in  its  “AS  IS,”  “WHERE  IS”  condition  and  with  all  faults  as  of  the  ES  Commencement  Date,  without 
representations or warranties, express or implied, in fact or by law, of any kind, and without recourse to Landlord.

4. Construction. Landlord’s Base Building Work with respect to the Expansion Space has been completed. It is understood and agreed 
that Landlord shall have no obligation to perform any work to prepare the Expansion Space for Tenant’s use and/or occupancy. Section 3 of 
the Third Amendment is hereby deleted in its entirety and replaced with the provisions of Exhibit A attached hereto and made a part hereof. 

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1

 
 
 
 
 
 
5. CFM. In addition to the CFM provided to the Expansion Space in accordance with the Matrix, Landlord shall make available to 

the Expansion Space (only) an additional 770 CFM air handler capacity of 100% outside air.

6. Broker.  Landlord  and  Tenant  each  warrants  and  represents  that  it  has  dealt  with  no  broker  in  connection  with  this  Fourth 
Amendment other than CBRE (“Broker”). Landlord and Tenant each agrees to defend, indemnify and save the other harmless from and 
against any Claims arising as a result of its breach of the foregoing representation and warranty. Landlord shall be solely responsible for 
the payment of any brokerage commissions to Broker.

7. Ratification. Except as amended hereby, the terms and conditions of the Lease shall remain unaffected. From and after the date 
hereof, all references to the Lease shall mean the Lease as amended hereby. Tenant confirms and ratifies that, as of the date hereof and to 
its actual knowledge, (a) the Lease is and remains in good standing and in full force and effect, and (b) it has no claims, counterclaims, set-
offs or defenses against Landlord arising out of the Lease or the Premises or in any way relating thereto.

8. Miscellaneous.  This  Fourth  Amendment  shall  be  deemed  to  have  been  executed  and  delivered  within  the  Commonwealth  of 
Massachusetts, and the rights and obligations of Landlord and Tenant hereunder shall be construed and enforced in accordance with, and 
governed by, the laws of the Commonwealth of Massachusetts without regard to the laws governing conflicts of laws. If any term of this 
Fourth Amendment or the application thereof to any person or circumstances shall be invalid and unenforceable, the remaining provisions 
of  this  Fourth  Amendment,  the  application  of  such  term  to  persons  or  circumstances  other  than  those  as  to  which  it  is  invalid  or 
unenforceable, shall not be affected. This Fourth Amendment is binding upon and shall inure to the benefit of Landlord and Tenant and 
their  respective  successors  and  assigns.  Each  party  has  cooperated  in  the  drafting  and  preparation  of  this  Fourth  Amendment  and, 
therefore, in any construction to be made of this Fourth Amendment, the same shall not be construed against either party. In the event of 
litigation relating to this Fourth Amendment, the prevailing party shall be entitled to reimbursement from the other party of its reasonable 
attorneys' fees and costs. This Fourth Amendment constitutes the entire agreement of the parties with respect to the subject matter hereof 
and supersedes all prior and contemporaneous oral and written agreements and discussions, and may not be amended, waived, discharged 
or terminated except by a written instrument signed by all the parties hereto. A facsimile, PDF or other electronic signature on this Fourth 
Amendment shall be equivalent to, and have the same force and effect as, an original signature. This Fourth Amendment may be executed 
in counterparts which, taken together, shall constitute a single instrument.

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[SIGNATURES ON FOLLOWING PAGE]

2

 
 
 
 
 
 
 
[SIGNATURE PAGE TO FOURTH AMENDMENT TO LEASE BY AND BETWEEN MIT 238 MAIN STREET 
LEASEHOLD LLC AND BEAM THERAPEUTICS, INC.]

EXECUTED as of the date first set forth above.

LANDLORD: MIT 238 MAIN STREET LEASEHOLD LLC

By: MIT Cambridge Real Estate LLC, its manager

By: /s/ Seth D. Alexander

Seth D. Alexander, President, and not individually

TENANT: 

BEAM THERAPEUTICS, INC.

By: /s/ John Evans
Name:  John Evans
Title: CEO

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3

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
PROVISIONS GOVERNING TENANT’S ES FITOUT (“ES WORK LETTER”)

EXHIBIT A 

1.  Representatives.

(a)  Landlord’s Authorized Representative. Landlord designates, as Landlord’s authorized representative (“Landlord’s Authorized 
Representative”), Maureen McCaffrey as the individual authorized by Landlord to approve on behalf of Landlord all plans, drawings and 
other matters for which the approval of Landlord is required or contemplated pursuant to this ES Work Letter. Tenant shall not be obligated to 
respond  to  or  act  upon  any  such  item  until  such  item  has  been  initialed  or  signed  or  submitted  in  writing  (as  applicable)  by  Landlord’s 
Authorized  Representative.  Landlord  may  change  Landlord’s  Authorized  Representative  and/or  name  additional  persons  to  serve  as 
Landlord’s  Authorized  Representative  (provided  that  Tenant  may  rely  upon  the  authorization  of  any  one  of  such  persons)  upon  one  (1) 
business day’s prior written notice to Tenant. Landlord agrees that Landlord’s Authorized Representative(s) shall be reasonably available to 
meet and consult with Tenant’s Authorized Representative in person (in the vicinity of the Property) or by phone (at the election of Tenant’s 
Authorized Representative) upon reasonable prior notice by Tenant.

(b)  Tenant’s  Authorized  Representative.  Tenant  designates,  as  Tenant’s  authorized  representative  (“Tenant’s  Authorized 
Representative”),  Chris  Hill  as  the  individual  authorized  by  Tenant  to  initial  and  sign  all  plans,  drawings,  change  orders  and  approvals 
pursuant to this ES Work Letter. Landlord shall not be obligated to respond to or act upon any such item until such item has been initialed or 
signed  or  submitted  in  writing  (as  applicable)  by  Tenant’s  Authorized  Representative.  Tenant  may  change  Tenant’s  Authorized 
Representative and/or name additional persons to serve as Tenant’s Authorized Representative (provided  that  Landlord  may  rely  upon  the 
authorization  of  any  one  of  such  persons)  upon  one  (1)  business  day’s  prior  written  notice  to  Landlord.  Tenant  agrees  that  Tenant’s 
Authorized  Representative  shall  be  reasonably  available  to  meet  and  consult  with  Landlord’s  Authorized  Representative  in  person  (in  the 
vicinity  of  the  Property)  or  by  phone  (at  the  election  of  Tenant’s  Authorized  Representative)  as  and  when  needed,  upon  reasonable  prior 
notice by Landlord.

(c)  Methods of Communication. Notwithstanding anything to the contrary, all notices, plan deliveries, requests for approval and 
the like required under this ES Work Letter shall be delivered by email (or other means agreed to by the parties), and shall not be required to 
be sent to the parties listed in or designated pursuant to Article 24 of the Lease. With respect to email communications, each party shall cc 
any parties designated for such copies by Landlord’s Authorized Representative(s) or Tenant’s Authorized Representative(s), as applicable. It 
is understood and agreed that approvals or consents must be communicated by a written signed document, which may be delivered by a PDF, 
TIF  or  JPG  file  or  other  mutually  agreed  image  file  delivered  by  email  (the  parties  acknowledging  that  such  electronic  signatures  on 
approvals and/or consents shall be binding for the purposes set forth in this ES Work Letter). Landlord and Tenant hereby agree that all plans, 
pricing information and schedules to be delivered pursuant to this ES Work Letter may also be delivered by uploading the same to a website 
to  which  Landlord’s  Authorized  Representative  and  Tenant’s  Authorized  Representative  (and  any  persons  designated  by  Landlord’s 
Authorized  Representative  and/or  Tenant’s  Authorized  Representative,  such  designation  including  the  person’s  name,  email  address  and 
company)  shall  have  access.  Promptly  after  uploading  any  document  to  such  website,  an  email  shall  be  sent  to  all  parties  having  access 
thereto.  Other  project-related  information  (including,  without  limitation,  commissioning  documents,  meeting  minutes,  basis  for  design, 
design submissions and contractor submittals, including without limitation requests for information) may also be posted to a project website
to  which  Landlord’s  Authorized  Representative  and  Tenant’s  Authorized  Representative  (and  any  persons  designated  by  Landlord’s 
Authorized  Representative  and/or  Tenant’s  Authorized  Representative,  such  designation  including  the  person’s  name,  email  address  and 
company)  shall  have  access.  Promptly  after  uploading  any  document  to  such  project  website,  an  email  shall  be  sent  to  all  parties  having 
access thereto.

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2. 

Intentionally Omitted

3.  Tenant’s ES Fitout.

(a)  Plans. In connection with the performance of the work necessary to prepare the Expansion Space for Tenant’s occupancy and 
business operations, including without limitation, the installation of all furniture and fixtures (“Tenant’s ES Fitout”), Tenant shall engage the 
Approved Contractor as Tenant’s general contractor and AHA Consulting Engineers, Inc. as Tenant’s MEP Engineer, and Perkins & Will as 
Tenant’s architect. Furthermore, in connection with Tenant’s ES Fitout, Tenant shall submit to Landlord for Landlord’s approval (i) the name 
of and other reasonably requested information regarding any subcontractors performing work affecting the structural elements of, or any of 
the  utility  or  Building  service  equipment  or  systems  in,  the  Building  (the  “ES  Subcontractors”);  (ii)  on  or  before  August  10,  2022,  an 
electronic copy and four (4) full-sized copies of design/ development plans with sufficient information and detail to accurately describe the 
proposed  design  of  the  Expansion  Space  and  document  the  programmatic  requirements  for  Tenant’s  ES  Fitout  (the  “ES  Design/ 
Development Plans”), and (iii) on or before October 25, 2022, an electronic copy and four (4) full-sized copies of a fully coordinated set of 
architectural,  structural,  mechanical,  electrical  and  plumbing  engineering  plans  and  specifications  based  on  the  approved  Design 
Development Plans and in a form which is sufficiently complete to allow the Approved Contractor and subcontractors to bid on the work and 
to obtain all applicable permits for Tenant’s ES Fitout (“Final ES Construction Drawings”).  The  ES  Design/Development  Plans  and  the 
Final ES Construction Drawings are collectively referred to herein as the “ES Plans.” Landlord’s approval of the ES Subcontractors shall not 
be  unreasonably  withheld,  conditioned  or  delayed  and  Landlord's  approval  of  the  ES  Design/Development  Plans  (and  the  Final  ES 
Construction Drawings, provided that the Final ES Construction Drawings are consistent with the ES Design/Development Plans) shall not 
be unreasonably withheld, conditioned or delayed provided the ES Plans comply with the requirements to avoid aesthetic or other conflicts 
with the design and function of the balance of the Building and the Property; and provided, further that Landlord may withhold its approval 
in its sole discretion with respect to Restricted Alterations. Landlord’s approval is solely given for the benefit of Landlord and Tenant under 
this Section 3  and  neither  Tenant  nor  any  third  party  shall  have  the  right  to  rely  upon  Landlord’s  approval  of  the  ES  Plans  for  any  other 
purpose whatsoever. Any request for approval of the ES Plans shall be accompanied by (A) a certification from a licensed code engineer that 
such plans are code compliant, and (B) a certification from Landlord’s MEP engineer that the ES Plans are compatible with the base building 
design.  If  Tenant  timely  submits  drafts  of  the  ES  Plans  for  review  and  approval,  Landlord  shall  use  commercially  reasonable  efforts  to 
respond to any timely request for approval of the ES Plans within twelve (12) business days after receipt thereof; provided, however, so long 
as Perkins & Will is the architect for Tenant’s ES Fitout, Landlord shall use commercially reasonable efforts to respond to any timely request 
for approval of the ES Plans within five (5) business days after receipt thereof. Landlord shall notify Tenant in reasonable detail if any of the 
ES Plans are unsatisfactory or incomplete in any respect. In the event Landlord disapproves any of the ES Plans, Tenant shall revise the same 
to address Landlord’s comments and shall submit such revised ES Plan to Landlord for approval (and such process shall be continued until 
such  ES  Plan  is  approved  by  Landlord).  Tenant  shall  not  make  any  amendments,  deletions  or  additions  to  the  Final  ES  Construction 
Drawings approved by Landlord without Landlord’s prior written consent.

(b)  Landlord Delay. A “Landlord Delay” shall be defined as any act or wrongful omission by Landlord or any agent, employee, 
consultant,  contractor  or  subcontractor  of  Landlord  which  causes  an  actual  delay  in  the  Substantial  Completion  of  Tenant’s  ES  Fitout. 
Notwithstanding the foregoing, no event shall be deemed to be a Landlord Delay until and unless Tenant has given Landlord written notice 
(the “Landlord Delay Notice”) advising Landlord (i) that a Landlord Delay is occurring, (ii) of the basis on which Tenant has determined 
that a Landlord Delay is occurring, and (iii) the actions which Tenant believes that Landlord must take to eliminate such Landlord Delay, and 
Landlord has failed to dispute such asserted delay or to correct the Landlord Delay specified in the Landlord Delay Notice within three (3) 
business days following receipt thereof. No period of time prior to expiration of such 3-business day period shall be included in the period of 

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time charged to Landlord pursuant to such Landlord Delay Notice. Notwithstanding anything to the contrary, no Landlord Delay shall arise 
from Landlord’s timely granting or withholding of approval of any of the ES Plans as contemplated by and in accordance with this Exhibit A. 

(c)  Substantial Completion of Tenant’s ES Fitout. 

Tenant shall Substantially Complete (hereinafter defined) Tenant’s ES Fitout 
on or before the date that is twelve (12) months after the ES Commencement Date (the “Outside ES Completion Date”), provided  that  if 
Tenant  is  delayed  in  the  performance  of  Tenant’s  ES  Fitout  by  reason  of  a  Landlord  Delay  or  other  causes  beyond  Tenant’s  reasonable 
control, the Outside ES Completion Date shall be extended by the period of time which Tenant is so delayed. For purposes hereof, Tenant’s 
ES  Fitout  shall  be  deemed  “Substantially  Complete”  and  “Substantial  Completion”  shall  be  deemed  to  have  occurred  if  Tenant  has 
substantially  completed  Tenant’s  ES  Fitout  in  accordance  with  the  approved  Final  ES  Construction  Drawings  and  Tenant  has  delivered  to 
Landlord a copy of (i) a certificate of substantial completion from Tenant’s architect for Tenant’s ES Fitout, and (ii) a temporary or permanent 
certificate of occupancy for the Expansion Space from the City of Cambridge, Massachusetts; provided, however, if a temporary certificate 
of occupancy is issued with respect to the Expansion Space, then Tenant shall obtain a permanent certificate of occupancy for the Expansion 
Space within sixty (60) days after issuance of such temporary certificate of occupancy.

(d)  Cost of Tenant’s ES Fitout. Except for the ES Allowance (hereinafter defined), all of Tenant’s ES Fitout shall be performed at 
Tenant’s sole cost and expense, and shall be performed in accordance with the provisions of the Lease (including, without limitation, Article 
11). Tenant shall pay to Landlord, as additional rent, within ten (10) days after demand therefor, any costs or expenses incurred by Landlord 
(which shall be reasonably based on Tenant's usage) for the use of elevators and/or hoisting in connection with the performance of Tenant’s 
ES Fitout.

4.  ES Allowance.

(a)  Amount. As an inducement to Tenant’s entering into this Fourth Amendment, Landlord shall, subject to Section 4(c) below and 
the last sentence of this Section 4(a), provide to Tenant a special tenant improvement allowance in an amount up to One Million Six Hundred 
Three  Thousand  Nine  Hundred  Eighty  and  no/100  Dollars  ($1,603,980.00)  (the  “ES  Allowance”)  to  be  used  by  Tenant  solely  for  costs 
incurred by Tenant for Tenant’s ES Fitout. For the purposes hereof, the cost to be so reimbursed by Landlord shall not include: (i) the cost of 
acquiring  or  installing  any  of  Tenant’s  Property  (hereinafter  defined),  including  without  limitation  telecommunications  and  computer 
equipment and all associated wiring and cabling, any de-mountable decorations, artwork and partitions, signs, and trade fixtures, (ii) any fees 
paid to Tenant, any Affiliate or Successor, and (iii) any so-called “soft costs”; provided, however, notwithstanding the foregoing, up to One 
Hundred  Sixty  Thousand  Three  Hundred  Ninety-Eight  and  no/100  Dollars  ($160,398.00)  of  the  ES  Allowance  may  be  used  for  Tenant’s 
architectural, engineering and consultant fees and design and permitting costs and the cost of Tenant’s wiring and cabling relating to Tenant’s 
ES Fitout. 

(b)  Requisitions.  Subject  to  Section  4(c)  below,  Landlord  shall  pay  Landlord's  ES  Proportion  (hereinafter  defined)  of  the  cost 
shown on each requisition (as defined in the Work Letter) submitted by Tenant to Landlord within thirty (30) days of submission thereof by 
Tenant  to  Landlord  until  the  entirety  of  the  ES  Allowance  has  been  exhausted.  “Landlord's  ES  Proportion”  shall  be  a  fraction,  the 
numerator of which is the ES Allowance and the denominator of which is (A) the total contract price for Tenant’s ES Fitout for the entire 
Expansion Space (as evidenced by reasonably detailed documentation delivered to Landlord with the requisition first submitted by Tenant), 
less  (B)  those  costs  described  in  the  last  sentence  of  Section 4(a)  above  (as  evidenced  by  reasonably  detailed  documentation  delivered  to 
Landlord  with  the  requisition  first  submitted  by  Tenant).  Tenant  shall  not  be  required  to  deliver  Lien  Waivers  at  the  time  of  the  first 
requisition, but shall deliver the Lien Waivers and evidence of payment of the first requisition in full within five (5) days following payment 
of the ES Allowance with respect to such first requisition (it being understood and agreed that Lien Waivers with respect to the prior month’s 
requisition shall be submitted as part of each requisition after such 

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first requisition). Landlord shall have the right, upon reasonable advance notice to Tenant, to inspect Tenant's books and records relating to 
each requisition in order to verify the amount thereof. Tenant shall submit requisition(s) no more often than monthly. 

(c)  Notwithstanding anything to the contrary herein contained: (i) Landlord shall have no obligation to advance funds on account 
of the ES Allowance (A) until Landlord shall have received an original W-9 executed by Tenant, nor (B) more than once per month; (ii) If 
Tenant fails to pay to Tenant’s contractors the amounts paid by Landlord to Tenant in connection with any previous requisition(s), Landlord 
shall thereafter have the right to have the ES Allowance paid directly to Tenant's contractors; (iii) Landlord shall have no obligation to pay 
any  portion  of  the  ES  Allowance  with  respect  to  any  requisition  submitted  after  the  date  (the  “Outside  ES  Requisition  Date”)  which  is 
fifteen (15) months after the ES Commencement Date provided however, to the extent that the completion of Tenant’s ES Fitout is delayed 
by reason of a Landlord Delay, the Outside ES Requisition Date shall be extended by the period of time which Tenant is so delayed; (iv) 
Tenant shall not be entitled to any unused portion of the ES Allowance; (v) Landlord’s obligation to pay any portion of the ES Allowance 
shall be conditioned upon there existing no default by Tenant in its obligations under the Lease at the time that Landlord would otherwise be 
required to make such payment (it being understood and agreed that if Tenant cures such default prior to the expiration of the notice and/or 
cure periods set forth in Section 20.1  of  the  Lease,  Landlord  shall  make  such  payment  promptly  after  the  cure  is  effectuated);  and  (vi)  In 
addition to all other requirements hereof, Landlord’s obligation to pay the final ten percent (10%) of the ES Allowance shall be subject to 
simultaneous delivery of all unconditional lien waivers relating to items, services and work performed in connection with Tenant’s ES Fitout.

(d)  In the event Tenant owes Landlord any sums under or pursuant to the Lease at such time as Landlord is obligated pursuant to 
the  provisions  of  this  Section  4  to  pay  any  portion  of  the  ES  Allowance,  Landlord  shall  have  the  right  to  offset  said  amount  from  such 
payment of the ES Allowance.

5. 
Space  Planning  Allowance.  In  addition  to  the  ES  Allowance,  and  as  a  further  inducement  to  Tenant’s  entering  into  this  Fourth 
Amendment,  Landlord  shall,  subject  to  this  Section 5,  provide  to  Tenant  a  special  tenant  improvement  allowance  equal  to  Nine  Hundred 
Sixteen  and  56/100  Dollars  ($916.56)  (the  “Space  Planning  Allowance”)  to  be  used  by  Tenant  solely  for  design  and  architectural  costs 
incurred by Tenant for space planning the Expansion Space. Provided there is no Event of Default or event which, with the passage of time 
and/or the giving of notice would constitute an Event of Default, Landlord shall pay the Space Planning Allowance to Tenant within thirty 
(30)  days  after  the  later  to  occur  of  (a)  Landlord’s  receipt  of  the  draft  ES  Design/Development  Plans,  and  (b)  Landlord’s  receipt  of  a 
reasonably detailed invoice therefor, which invoice must be delivered to Landlord on or before the date which is sixty (60) days after the ES 
Commencement  Date;  provided,  however,  that  if  Tenant  cures  any  default  prior  to  the  expiration  of  applicable  cure  periods  set  forth  in 
Article 20 of the Lease, then Landlord’s obligation to pay the Space Planning Allowance shall be reinstated. Tenant shall not be entitled to 
any unused portion of the Space Planning Allowance.

 IF " DOCVARIABLE "SWDocIDLocation" 4096" = "1" " DOCPROPERTY "SWDocID" ACTIVEUS 193067902v.7" "" 

 
 
 
 
  
  
 
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement Nos. 333-236582, 333-254378, and 333-263067 on Form S-8, and Registration 
Statement Nos. 333-256962 and 333-254946  on Form S-3 of our reports dated February 28, 2022, relating to the financial statements of Beam 
Therapeutics Inc. and subsidiaries, and the effectiveness of Beam Therapeutics Inc. and subsidiaries’ internal control over financial reporting, appearing in 
this Annual Report on Form 10-K for the year ended December 31, 2022.

Exhibit 23.1

/s/ Deloitte & Touche LLP

Boston, Massachusetts
February 28, 2023

 
 
 
 
 
 
CERTIFICATION PURSUANT TO

RULES 13a-14(a) AND 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934,

AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 31.1

I, John Evans, certify that: 

1.

2.

3.

4.

I have reviewed this Annual Report on Form 10-K of Beam Therapeutics Inc.; 

Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the 
statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this 
report;

Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the 
financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in 
Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-
15(f)) for the registrant and have:

(a)

(b)

(c)

(d)

Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our 
supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by 
others within those entities, particularly during the period in which this report is being prepared;

Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our 
supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for 
external purposes in accordance with generally accepted accounting principles;

Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the 
effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most 
recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably 
likely to materially affect, the registrant's internal control over financial reporting; and

5.

The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to 
the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(a)

(b)

All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are 
reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal 
control over financial reporting.

Date: February 28, 2023

By:

  /s/ John Evans
  John Evans
  Chief Executive Officer
  (Principal executive officer)

-2-

 DOCPROPERTY DOCXDOCID DMS=InterwovenIManage Format=<>_<> PRESERVELOCATION \* MERGEFORMAT 93895667_1

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
CERTIFICATION PURSUANT TO

RULES 13a-14(a) AND 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934,

AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 31.2

I, Terry-Ann Burrell, certify that: 

1.

2.

3.

4.

I have reviewed this Annual Report on Form 10-K of Beam Therapeutics Inc.; 

Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the 
statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this 
report;

Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the 
financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in 
Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-
15(f)) for the registrant and have:

(a)

(b)

(c)

(d)

Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our 
supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by 
others within those entities, particularly during the period in which this report is being prepared;

Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our 
supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for 
external purposes in accordance with generally accepted accounting principles;

Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the 
effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and 

Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most 
recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably 
likely to materially affect, the registrant's internal control over financial reporting; and

5.

The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to 
the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a)

(b)

All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are 
reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and 

Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal 
control over financial reporting.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Date: February 28, 2023

By:

  /s/ Terry-Ann Burrell
  Terry-Ann Burrell
  Chief Financial Officer
  (Principal financial and accounting officer)

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 32.1

In connection with this Annual Report of Beam Therapeutics Inc. (the “Company”) on Form 10-K for the period ended December 31, 2022 as filed 

with the Securities and Exchange Commission on the date hereof (the “Report”), I certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the 
Sarbanes-Oxley Act of 2002, that: 

(1)  The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and 

(2)  The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the 

Company. 

Date: February 28, 2023

By:   /s/ John Evans
  John Evans
  Chief Executive Officer
  (Principal executive officer)

 
 
 
 
 
 
 
 
 
 
 
CERTIFICATION PURSUANT TO 
18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO 
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 

Exhibit 32.2

In connection with this Annual Report of Beam Therapeutics Inc. (the “Company”) on Form 10-K for the period ended December 31, 2022 as filed 

with the Securities and Exchange Commission on the date hereof (the “Report”), I certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the 
Sarbanes-Oxley Act of 2002, that: 

(1)

(2)

The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and 

The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the 
Company. 

Date: February 28, 2023

By:   /s/ Terry-Ann Burrell

  Terry-Ann Burrell
  Chief Financial Officer
  (Principal financial and accounting officer)