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Chimerix

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FY2020 Annual Report · Chimerix
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549

Form 10-K

(Mark One)

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

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

For the fiscal year ended December 31, 2020 
or

For the transition period from                  to

Commission file number: 001-35867

Chimerix, Inc.

(Exact Name of Registrant as Specified in its Charter)

Delaware
(State or Other Jurisdiction of
Incorporation or Organization)

2505 Meridian Parkway, Suite 100
Durham, North Carolina
(Address of Principal Executive Offices)

33-0903395
(I.R.S. Employer
Identification No.)

27713
(Zip Code)

(919) 806-1074
(Registrant’s Telephone Number, Including Area Code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class
Common Stock, par value $0.001 per share

Trading Symbol(s)
CMRX

Name of each exchange on which registered
The Nasdaq Global Market

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes   x     No   o

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act.    Yes   o     No   x

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   x     No   o

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   x     No   o

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of the registrant’s knowledge,

in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. x

 
 
 
  
 
 
 
 
 
 
 
 
 
 
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

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 o

Non-accelerated filer   x

Accelerated filer   o
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. o

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. ☒

 Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Securities Exchange Act of 1934).    Yes   ☐     No   x

The aggregate market value of the voting and non-voting common equity held by non-affiliates of the registrant based upon the closing price of its Common Stock on The Nasdaq Global

Market on June 30, 2020 was $135,565,762.

The number of outstanding shares of the registrant’s common stock, par value $0.001 per share, as of February 19, 2021 was 85,679,225.

DOCUMENTS INCORPORATED BY REFERENCE

Document Description

10-K Part

Portions of the registrant’s notice of annual meeting of stockholders and proxy statement to be filed pursuant to Regulation 14A
within 120 days after registrant’s fiscal year end of December 31, 2020 are incorporated by reference into Part III of this
report………………………………………………………

III

 
CHIMERIX, INC.
FORM 10-K
For the Fiscal Year Ended December 31, 2020
Table of Contents

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

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

PART IV
Item 15

Signatures

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
Selected Financial Data
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

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

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Forward-Looking Statements

PART I

This  Annual  Report  on  Form  10-K  (Annual  Report)  may  contain  “forward-looking  statements”  within  the  meaning  of  the  federal  securities  laws  made
pursuant  to  the  safe  harbor  provisions  of  the  Private  Securities  Litigation  Reform  Act  of  1995.  Our  actual  results  could  differ  materially  from  those
anticipated in these forward-looking statements as a result of various factors, including those set forth below under Part I, Item 1A, “Risk Factors” in this
Annual Report. Except as required by law, we assume no obligation to update these forward-looking statements, whether as a result of new information,
future events or otherwise. These statements, which represent our current expectations or beliefs concerning various future events that are subject to risks
and uncertainties, may contain words such as “may,” “will,” “expect,” “anticipate,” “intend,” “plan,” “believe,” “estimate” or other words indicating future
results. Such statements may include, but are not limited to, statements concerning the following:

•

•

•
•
•
•
•
•
•
•
•
•
•
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•
•
•

the initiation, cost, enrollment, timing, progress and results of our research and development activities, preclinical studies and future clinical
trials;
our ability to obtain and maintain regulatory approval of our current and future product candidates, and any related restrictions, limitations,
and/or warnings in the label of an approved product candidate;
our ability to obtain funding for our operations;
our plans to research, develop and commercialize our future product candidates;
our strategic alliance partners’ election to pursue development and commercialization;
our ability to attract collaborators with development, regulatory and commercialization expertise;
our ability to obtain and maintain intellectual property protection for our future product candidates;
the size and growth potential of the markets for our current and future product candidates, and our ability to serve those markets;
our ability to successfully commercialize our current and future product candidates;
the rate and degree of market acceptance of our current and future product candidates;
our ability to develop sales and marketing capabilities, whether alone or with potential future collaborators;
regulatory developments in the United States and foreign countries;
the performance of our third-party suppliers and manufacturers;
the success of competing therapies that are or become available;
the loss of key scientific or management personnel;
our use of the proceeds from our public offerings; and
the accuracy of our estimates regarding expenses, future revenues, capital requirements and need for additional financing.

Summary of Risk Factors

Below is a summary of material factors that make an investment in our common stock speculative or risky. Importantly, this summary does not address all
of the risks and uncertainties that we face. Additional discussion of the risks and uncertainties summarized in this risk factor summary, as well as other
risks and uncertainties that we face, can be found under “Risk Factors” in Part I, Item 1A of this Annual Report. The below summary is qualified in its
entirety by that more complete discussion of such risks and uncertainties. You should consider carefully the risks and uncertainties described under “Risk
Factors” in Part I, Item 1A of this Annual Report as part of your evaluation of an investment in our common stock.

• We  have  incurred  significant  losses  since  our  inception.  We  anticipate  that  we  will  continue  to  incur  significant  losses  for  the  foreseeable

future, and we may never achieve or maintain profitability.

• Our product candidates are still under clinical development and may not obtain regulatory approval or be successfully commercialized. We
have never obtained regulatory approval for a drug and we may be unable to obtain, or may be delayed in obtaining, regulatory approval for
most advanced clinical candidates: BCV, ONC201 and DSTAT.

• Our ability to generate future revenues from product sales is uncertain and depends upon our ability to successfully develop, obtain regulatory

•

approval for, and commercialize product candidates.
Even if we obtain regulatory approval for any of our product candidates, including BCV, ONC201 and DSTAT, we will still face extensive
regulatory requirements and our products may face future development and regulatory difficulties.

• We rely on third-party manufacturers to produce our preclinical and clinical drug supplies, and we intend to rely on third parties to produce
commercial  supplies  of  any  approved  product  candidates.  We  rely  on  limited  sources  of  supply  for  the  drug  components  for  each  of  our
product candidates including, BCV, ONC201 and DSTAT, and

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any disruption in the chain of supply for either of these product candidates may cause delays in their development and commercialization.
• We  are  evaluating  external  assets  to  build  our  pipeline  of  product  candidates  and  there  can  be  no  assurance  that  we  will  be  successful  in
identifying or completing a transaction for a candidate, that any such transaction will result in additional value for our stockholders or that the
process  will  not  have  an  adverse  impact  on  our  business.  For  example,  we  may  experience  difficulties  in  integrating  the  operations  of
Oncoceutics into our business and in realizing the expected benefits of the merger with Oncoceutics.
If we are unable to obtain or protect intellectual property rights related to our products and product candidates, we may not be able to compete
effectively in our market .
If we fail to comply with the extensive legal and regulatory requirements affecting the health care industry, we could face increased costs,
delays in the development of our product candidates, penalties and a loss of business.

•

•

• We face risks related to the coronavirus (COVID-19) outbreak, which could significantly disrupt our preclinical studies and clinical trials.

Market, Industry and Other Data

This  Annual  Report  contains  estimates,  projections  and  other  information  concerning  our  industry,  our  business  and  relevant  markets,  including  data
regarding the estimated size of relevant antiviral markets, patient populations, projected diagnosis rates and the perceptions and preferences of patients and
physicians  regarding  certain  therapies,  as  well  as  data  regarding  market  research  and  estimates.  Information  that  is  based  on  estimates,  forecasts,
projections, market research or similar methodologies is inherently subject to uncertainties and actual events or circumstances may differ materially from
events and circumstances that are assumed in this information. Unless otherwise expressly stated, we obtained this industry, business, market and other data
from  reports,  research  surveys,  studies  and  similar  data  prepared  by  market  research  firms  and  other  third  parties,  industry,  medical  and  general
publications, government data and similar sources that we believe to be reliable. In some cases, we do not expressly refer to the sources from which this
data is derived. In that regard, when we refer to one or more sources of this type of data in any paragraph, you should assume that other data of this type
appearing in the same paragraph are derived from the same sources, unless otherwise expressly stated or the context otherwise requires.

ITEM 1.      BUSINESS

Chimerix Overview

Chimerix is a development-stage biopharmaceutical company dedicated to accelerating the advancement of innovative medicines that make a meaningful
impact in the lives of patients living with cancer and other serious diseases. Our three most advanced clinical-stage development programs are brincidofovir
(BCV), ONC201 and dociparstat sodium (DSTAT). BCV is an antiviral drug candidate developed as a potential medical countermeasure for smallpox and
is currently under review for regulatory approval in the United States. ONC201 is currently being investigated in a number of efficacy studies for recurrent
H3 K27M-mutant glioma and a confirmatory response rate assessment, potentially sufficient for accelerated approval, is expected later this year. DSTAT is
in  Phase  3  development  as  a  potential  first-line  therapy  in  acute  myeloid  leukemia  (AML)  and  as  a  potential  treatment  for  acute  lung  injury  (ALI)  in
COVID-19 patients.

Brincidofovir (BCV)

BCV  is  an  investigational  lipid  conjugate  which  acts  via  inhibition  of  viral  DNA  synthesis  that  is  in  development  as  a  medical  countermeasure  for
smallpox. It is being developed under the FDA Animal Efficacy Rule, which allows for testing of investigational drugs in animal models to support the
effectiveness of treatments against diseases that are not ethical or feasible to study in humans.

We completed the rolling NDA submission for BCV tablets and for BCV suspension for the approval of BCV as a medical countermeasure for smallpox. In
December 2020 we announced that the FDA had accepted the filing of the NDA. The FDA granted priority review and set a Prescription Drug User Fee
Act  (PDUFA)  date  of  April  7,  2021.  In  January  2021,  we  received  notification  from  the  FDA  that  the  PDUFA  date  for  review  of  BCV  as  a  medical
countermeasure  for  smallpox  has  been  moved  to  July  7,  2021.  Specifically,  FDA  requested  we  provide  a  dose  recommendation  for  infants  up  to  three
months of age. In response, we submitted to the FDA the requested modelled analyses, which resulted in the same weight-based dosing recommendation
previously  proposed  for  older  pediatric  patients.  The  ability  to  dose  across  all  pediatric  age  groups  with  a  convenient  oral  suspension  formulation  is  a
unique aspect of the BCV smallpox treatment. The FDA required an additional three months to review this information. We do not expect a delayed FDA
action date to impact the timing of the BARDA request for proposal, which is expected this quarter, nor the potential timing of first shipments of BCV to
the strategic national stockpile, expected in the second half of this year.

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BCV has received Fast Track designation and Orphan Drug Designation from the FDA for the treatment of smallpox.

We are collaborating with the Biomedical Advanced Research and Development Authority (BARDA) for the development of BCV as a potential medical
countermeasure for smallpox. Efficacy is to be demonstrated via two animal models under the FDA’s Animal Efficacy Rule.

Prior to May 2019, we had been developing oral and intravenous BCV for the treatment and prevention of multiple DNA viruses. In May 2019, we decided
to discontinue both the oral and IV development programs of BCV in adenovirus (AdV) and the associated clinical trials.

In  September  2019,  we  entered  into  a  license  agreement  for  certain  rights  to  BCV  with  SymBio  Pharmaceuticals.  Under  the  terms  of  the  agreement
SymBio  received  exclusive  worldwide  rights  to  develop,  manufacture  and  commercialize  BCV  in  all  human  indications,  excluding  the  prevention  and
treatment of orthopox viruses, which includes smallpox. Also,  per  the  agreement,  we  received  an  upfront  payment  of  $5  million  plus  potential  clinical,
regulatory and commercial milestones of up to $180 million. In addition, we are eligible to receive double-digit royalties on net sales of BCV worldwide.

Oncoceutics Acquisition

On January 7, 2021, we acquired Oncoceutics, Inc. (Oncoceutics), a privately-held, clinical-stage biotechnology company developing imipridones, a novel
potential  class  of  small  molecule  compounds.  Oncoceutics’  lead  product  candidate,  ONC201,  selectively  induced  cell  death  in  multiple  cancer  types  in
clinical trials. ONC201 is currently being evaluated in a registrational program for recurrent H3 K27M-mutant glioma and a response rate assessment of the
registrational cohort is expected in 2021.

Imipridones and ONC201

Imipridones  are  a  potential  new  class  of  selective  cancer  therapies.  These  drug  candidates  target  specific  G  protein-coupled  receptors  (GPCRs)  and
mitochondrial caseinolytic protease P (ClpP), in an effort to produce cancer cell death. The imipridone chemical scaffold provides an opportunity to target
GPCRs and ClpP with differential specificity and function. This presents an opportunity to develop potential imipridone therapies broadly within cancer
and in other diseases as well.

ONC201  selectively  targets  Dopamine  Receptor  D2  (DRD2)  and  ClpP.  ONC201  has  selectively  induced  cell  death  in  cancer  by  binding  to  and
differentially altering activity of DRD2 and ClpP.

Clinical trials of ONC201 in glioma patients with the H3 K27M-mutation are underway at several locations in the U.S. As many as 10% of patients with
glioma  have  the  H3  K27M-mutation.  The  H3  K27M-mutation  is  found  in  50-90%  of  patients  with  midline  glioma,  including  80-90%  of  children  with
diffuse intrinsic pontine glioma or DIPG. Currently there is no effective therapy for patients with the H3 K27M-mutation beyond radiation that provides
only transient benefit in a fraction of the population. Often it is not possible to resect these tumors and chemotherapy is ineffective. The median overall
survival following progression from first-line therapy is approximately 8 months.

Based  on  discussions  with  the  FDA,  we  plan  to  integrate  data  from  ongoing  ONC201  trials  into  a  registration  cohort  with  the  potential  for  an  NDA
submission seeking accelerated approval. The 50 subject registration cohort includes patients meeting the following eligibility criteria: greater than 2 years
of age with recurrent diffuse midline glioma whose tumors harbor the H3 K27M-mutation, evidence of measurable disease, completion of prior radiation
that was at least 90 days from starting ONC201 and evidence of progressive disease, amongst other criteria. The primary endpoint of the study is Overall
Response Rate (ORR)

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assessed by Response Assessment in Neuro-Oncology high-grade glioma (RANO-HGG) criteria. Below is an interim response summary, which shows a
meaningful durability of response among those subjects that respond to therapy.

Figure 1: Waterfall plot reflects 47 subjects; 3 subjects did not have on-treatment tumor assessments available but were reported by investigator to have
progressive  disease.  Some  eligibility  and  response  data  were  based  on  unlocked  CRFs  that  remain  subject  to  change  with  additional  monitoring.  PR  is
partial response, SD is stable disease and PD is progressive disease.

A Blinded Independent Central Review (BICR) analysis of the ORR is expected to take place in 2021 which, if favorable, may form the basis for an NDA
submission seeking accelerated approval of ONC201 in the United States. ONC201 has been generally well tolerated across a database of over 350 glioma
patients. The most commonly reported adverse events (AEs) were nausea/vomiting, fatigue and decreased lymphocyte counts. Dose limiting toxicities have
not been observed with weekly dosing in any indication.

The FDA has granted ONC201 Fast Track Designation for the treatment of adult recurrent H3 K27M-mutant high-grade glioma, Rare Pediatric Disease
Designation for treatment of H3 K27M-mutant glioma, and Orphan Drug Designations for the treatment of glioblastoma and for the treatment of malignant
glioma.

In  addition  to  clinical  trials  in  glioma,  ONC201  is  also  being  studied  in  an  ongoing  investigator-initiated  Phase  2  trial  in  neuroendocrine  tumors  at  the
Cleveland  Clinic.  Interim  investigator  assessments  as  of  a  cutoff  date  of  August  20,  2020  showed  investigator  assessed  objective  responses  in
paraganglioma which are adrenal-related tumors that are known to harbor elevated DRD2 expression and dopamine secretion.

ONC206

ONC206 is a DRD2 antagonist and ClpP agonist that demonstrated enhanced non-competitive DRD2 antagonism relative to ONC201 in preclinical studies
and  additionally  showed  disruption  of  DRD2  homodimers.  Treatment  of  tumor  cells  with  ONC206  elicits  a  distinct  gene  expression  as  compared  to
ONC201. ONC206 has demonstrated synergistic in vitro activity with ONC201 in cells that have acquired resistance to ONC201. ONC206 showed anti-
tumor activity in preclinical models of difficult-to-treat neuroendocrine tumors and high-grade gliomas. In vitro, ONC206 has affected some of the same
downstream  pathways  as  ONC201,  including  activation  of  the  integrated  stress  response  and  inhibition  of  Ras  signaling,  leading  to  selective  killing  of
tumor cells.

The first-in-human clinical trial of ONC206 for adults with recurrent primary central nervous system tumors is ongoing at the National Institute of Health
(NCT04541082).

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ONC212

ONC212  is  an  investigational  agonist  of  the  orphan  GPCR  tumor  suppressor  GPR132,  as  well  as  ClpP.  Similar  to  the  potential  downstream  effects  of
ONC201  and  ONC206,  in  vitro  studies  of  ONC212  demonstrate  activation  of  integrated  stress  response,  inhibited  Ras  signaling  and  selectively  killed
tumor cells. ONC212 showed broad-spectrum activity across both solid tumors and hematological malignancies, including pancreatic cancer and leukemias
prioritized as target clinical indications that exhibit high GPR132 and/or ClpP expression.

Currently ONC212 is in IND-enabling studies. If warranted by IND-enabling studies, first-in-human trials are expected to be conducted in collaboration
with MD Anderson Cancer Center and Brown University.

Dociparstat sodium (DSTAT)

In July 2019, we entered into a Development and License Agreement, or the License Agreement, with Cantex Pharmaceuticals (Cantex), pursuant to which
we acquired exclusive worldwide rights to develop and commercialize DSTAT for all indications; the planned lead indication is for the first line treatment
of acute myeloid leukemia (AML) in combination with cytotoxic chemotherapy. Under the terms of the License Agreement, we are responsible for, and
bear  the  costs  of,  worldwide  development  and  commercialization  of  DSTAT.  As  consideration  for  the  exclusive  license,  Cantex  received  an  upfront
payment of $30.0 million and 10.0 million shares of Chimerix stock. Cantex is also eligible to receive milestone payments up to $202.5 million upon the
receipt of product approvals in the United States, the European Union and Japan and sales milestone payments up to $385 million upon achievement of
specified net sales levels. We also agreed to pay Cantex tiered royalties based on percentage of net sales beginning at 10% and not to exceed the high teens.

DSTAT for First-Line Acute Myeloid Leukemia (AML)

DSTAT is a is a novel therapeutic candidate which inhibits the activities of key proteins implicated in the resistance of AML blasts and leukemic stem cells
(LSCs)  to  chemotherapy  (e.g.,  CXCL12,  HMGB1,  Human  Leukocyte  Elastase  (HLE)).  DSTAT  also  inhibits  platelet  factor  4  (PF4),  which  has  been
demonstrated to play a key role in the maintenance of hematopoietic stem cell (HSC) quiescence and impairment of platelet recovery after chemotherapy.

Collectively, DSTAT’s inhibition of these proteins has the potential to benefit patients in three ways:

Inhibit mechanisms of chemoresistance in AML blasts
Increase chemosensitivity of leukemic stem cells (LSCs)

•
•
• Accelerate platelet recovery following chemotherapy

Preliminary evidence of DSTAT efficacy was demonstrated in a randomized, controlled, Phase 2b, dose-finding study (NCT02873338) evaluating DSTAT
in combination with standard 7+3 chemotherapy vs chemotherapy alone in 75 participants ≥60 years of age with newly diagnosed AML. Observed overall
survival (OS) was longer in the DSTAT group (median not reached; median follow-up for survivors was 20 months) than the control group (median 11.7
months [95% CI: 7.6, nc]) (observed hazard ratio [HR] 0.68 [95% CI: 0.29, 1.57]). A subset analysis of participants meeting the target inclusion criteria for
the planned Phase 3 study demonstrated a favorable observed HR for DSTAT (N=20) vs control (N=19) for OS of 0.51 [95% CI: 0.19, 1.42]. Combination
treatment with 7+3 chemotherapy and DSTAT did not show increased toxicity compared with 7+3 chemotherapy alone, nor did it prolong time to platelet
or neutrophil recovery.

The  improved  outcomes  seen  in  patients  given  DSTAT  combined  with  chemotherapy  may  be  due  to  DSTAT  inhibition  of  key  proteins  resulting  in
sensitization of low abundance resistant AML blasts and quiescent LSCs to cell cycle-dependent

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chemotherapies. The potential impact on relapse of a deeper and more durable response to chemotherapy treatment is represented graphically in the figure
below.

Figure 1: Schematic representation of leukemic cell counts over time. In the above hypothetical chart, Patients 2 through 5 are all assumed to achieve a
complete  response  or  CR  (<5%  AML  blasts  in  bone  marrow  based  on  morphology);  however,  their  long-term  response  varies  from  a  relatively  quick
relapse  to  a  potential  cure.  Measurable  residual  disease  or  MRD  is  a  more  sensitive  analysis  of  blasts  than  CR  (e.g.,  0.1%  cutoff  for  MRD  by  flow
cytometry is typical vs 5% for CR by morphology)

The mechanism of DSTAT efficacy is likely based on the inhibition of multiple proteins involved in chemoresistance and quiescence. This multi-modal
mechanism of action may be particularly beneficial in a disease with significant heterogeneity like AML and may provide an advantage relative to other
therapies with singular targets (e.g., CXCR4 inhibitors, E-selectin inhibitors).

DSTAT interaction with the key targets may provide a deeper and more durable response to chemotherapy treatment in AML patients without significant
additional toxicity compared to chemotherapy alone.

In 2020, we conducted an end of Phase 2 meeting with the FDA related to the Company’s development of DSTAT in AML. Following the meeting, we
incorporated FDA's feedback into the full protocol. We recently opened clinical trial sites and are ready to begin screening patients for our 570-subject
Phase 3 Dociparstat in AML with Standard Chemotherapy (DASH AML) study of DSTAT for the treatment of AML.

DASH AML is a randomized, double-blinded trial of approximately 570 newly diagnosed AML patients. The trial will include patients 60 years of age and
older who have an intermediate or adverse genetic risk profile. It will also include patients between 18 and 60 years old who have an adverse genetic risk
profile.  Patients  will  be  randomized  1:1  to  receive  DSTAT  in  combination  with  standard  cytarabine  plus  anthracycline  (7+3)  induction  and  cytarabine
consolidation chemotherapy or will receive standard of care (7+3) induction and consolidation chemotherapy alone. Patients with FLT-3 mutations will be
allowed in the study and will be eligible to receive midostaurin.

The primary endpoint of the trial is overall survival (OS). In addition, the FDA has indicated that event-free survival (EFS) using complete response with
hematologic recovery to define induction success (CR) may be acceptable as an endpoint for regulatory approval. Other endpoints to be evaluated in the
proposed trial include: MRD, relapse-free survival (RFS), time to hematologic recovery, and induction response.

In  order  to  supplement  the  previously  reported  data  from  pilot  and  Phase  2  studies  and  provide  additional  evidence  regarding  DSTAT’s  potential
mechanism of action, the proposed Phase 3 trial includes an early assessment of comparative CR and MRD rates among the first 80 evaluable patients. A
recently published meta-analysis of 81 separate studies covering 11,151 patients (Short, et. al., Journal of the American Medical Association Oncology,
October 8, 2020) has suggested a link between MRD status and outcomes in patients with AML. Specifically, this large cohort meta-analysis showed that
MRD-negative  AML  patients  experience  superior  5-year  disease-free  survival  (average  hazard  ratio:  0.37)  and  5-year  overall  survival  (average  hazard
ratio: 0.36) rates when compared to patients that are MRD-positive. This study suggests that evaluation of MRD status

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in AML patients may allow for an earlier assessment of therapeutic effects and could lead to acceleration in the development of novel AML therapeutics.

The  data  from  the  first  80  evaluable  patients  of  the  proposed  Phase  3  trial  are  expected  to  be  unblinded,  reported  publicly,  and  available  for  ongoing
analysis  of  later  endpoints,  unless  the  independent  Data  Monitoring  Committee  (DMC)  determines  that  exceptional  pre-specified  thresholds  have  been
achieved, in which case the DMC will have the discretion to maintain blinding, which would allow inclusion of these patients in the final analysis.

DSTAT has received Orphan Drug and Fast Track designation from the U.S. Food and Drug Administration (FDA) for the treatment of AML.

DSTAT for the Treatment of Acute Lung Injury (ALI) in COVID-19 Patients

DSTAT is a low anticoagulant heparin derivative which has been shown to modify several key drivers of inflammation and aberrant thrombosis. DSTAT’s
proposed mechanism of action is multimodal and may involve inhibition of several proteins (HMGB1, PF4, and P-selectin). These proteins are involved in
the hyperinflammation and coagulopathy associated with severe COVID-19, suggesting DSTAT is uniquely positioned as a candidate treatment to address
these important aspects of COVID-19 pathophysiology that contribute to high morbidity and mortality.

In  April  2020,  we  announced  the  initiation  of  a  Phase  2/3  study  of  DSTAT  in  patients  with  acute  lung  injury  (ALI)  from  COVID-19.  The  study  is  a
randomized, double-blind, placebo-controlled, Phase 2/3 trial to evaluate the safety and efficacy of DSTAT in adults with severe COVID-19 who are at
high risk of respiratory failure. Eligible subjects will be those with confirmed COVID-19 who require hospitalization and supplemental oxygen therapy.
The  primary  endpoint  of  the  study  is  survival  without  the  need  for  mechanical  ventilation  through  day  28.  Additional  endpoints  include  time  to
improvement as assessed by the National Institute of Allergy and Infectious Disease (NIAID) ordinal scale, time to hospital discharge, time to resolution of
fever, number of ventilator-free days, all-cause mortality, and changes in key biomarkers (e.g., IL-6, TNF-α, HMGB1, C-reactive protein and d-dimer).

The Phase 2 portion of the study will enroll 24 subjects (12 subjects in each of 2 cohorts with different doses) to determine the maximum tolerated dose and
will  then  expand  to  a  third  cohort  consisting  of  approximately  50  patients  (74  total)  at  the  selected  dose.  A  formal  analysis  of  all  endpoints,  including
supportive biomarkers will be performed at the conclusion of the Phase 2 portion of the study. Contingent upon positive results from the Phase 2 portion,
the  Phase  3  portion  of  the  study  will  enroll  approximately  450  subjects.  This  study  is  currently  enrolling.  Due  to  the  complex  and  rapidly  changing
landscape of COVID infection rates and institutional standard of care, we cannot predict with certainty when we will complete Phase 2 enrollment. The
study protocol allows for the review of data by cohort.

Topline Results from First Cohort

We have completed enrollment of the first and second cohorts of our DSTAT trial in COVID-19 patients. An analysis of the first cohort that enrolled 12
patients randomized 1:1 was conducted. One patient on DSTAT was ventilated and recovered. Two patients on placebo progressed to ventilation and died,
one on day two and the other post day 28. No deaths were reported in patients on the DSTAT arm.

9

A secondary endpoint of the study was the proportion of patients who achieved at least a two-point improvement in the NIAID ordinal scale, an assessment
of clinical status. All six DSTAT patients met the improvement criteria compared to two of the six placebo patients as shown in the Kaplan-Meier curve
below.

Of note, on day 28 three of the six placebo patients remained hospitalized and one had died. At day 28, one DSTAT patient was hospitalized. Two DSTAT
patients who were discharged were subsequently lost to follow-up.

No patients on DSTAT had elevated values for IL-6, MCP-1 or D-dimer on therapy, but two patients on placebo had substantial increases in all of these
biomarkers by day five. One of these placebo patients developed Acute Respiratory Disease Syndrome and died after day 28 while the other suffered a
pulmonary  embolism  and  recovered.  These  biomarkers  are  reflective  of  the  lung  inflammation  and  thrombotic  complications  associated  with  severe
COVID-19, and these findings are consistent with the proposed mechanism of action for DSTAT.

DSTAT was observed to be generally safe and well tolerated. No patients on the DSTAT arm discontinued study treatment for adverse events compared to
two patients on the placebo arm.

First Cohort Demographics

As an enrollment criterion, all patients were hospitalized with confirmed COVID-19 infection and required supplemental oxygen; some patients required
more intensive supplemental oxygen (noninvasive ventilation/high-flow oxygen) which is generally associated with more severe disease.

Five  of  the  six  patients  on  the  placebo  arm  required  noninvasive  ventilation/high-flow  oxygen  at  baseline,  compared  to  two  of  the  six  patients  on  the
DSTAT arm. The median age of patients in cohort one was 63.0 years on the placebo arm and 50.5 years on the DSTAT arm. These random imbalances
may favor the DSTAT arm.

The  DSTAT  arm  was  comprised  of  six  males.  The  placebo  arm  was  comprised  of  four  males  and  two  females.  Being  male  has  been  associated  with  a
higher risk of COVID-19 mortality.

Second Cohort Enrollment Complete

The Phase 2 portion of the study enrolled two cohorts of 12 patients each to confirm the maximum safe dose with reviews by the Data Safety Management
Board (DSMB) after completion of each cohort. The second cohort is fully enrolled and the data will be compiled for review by the DSMB. Following
review, the DSMB will recommend a dose for the third cohort which will include approximately 50 additional patients (74 total). A formal analysis of all
endpoints, including supportive biomarkers will be performed at the conclusion of the third cohort, completing the Phase 2 portion of the study. Contingent
upon positive results, the Phase 3 portion of the study will enroll approximately 450 patients.

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Our Strategy

The principal components of our business strategy are to:

• Deliver  BCV,  as  a  countermeasure  for  smallpox,  to  the  Strategic  National  Stockpile  (SNS). In  2020,  we  submitted  an  NDA  for  BCV
tablet and an NDA for BCV suspension for the treatment of smallpox. In December 2020, we received notification from the FDA of an April
7, 2021 PDUFA date related to our submissions.

• Develop ONC201 for recurrent H3 K27M-mutant glioma. ONC201 is currently being evaluated in a registrational program for recurrent
H3 K27M-mutant Glioma. Upon full maturation of the data, an evaluation by BICR of a 50-subject registrational cohort is expected later this
year. If favorable, this data may form the basis for an accelerated regulatory approval of ONC201 in the United States. In addition to clinical
data  support  preparation,  we  are  also  working  on  drug  product  and  clinical  pharmacology  support  of  ONC201  necessary  for  a  pre-NDA
meeting. As we gather more information, we expect to have a better understanding of the possible timeframes in which a pre-NDA meeting
could take place.

• Develop DSTAT for AML. Following an end of Phase 2 meeting with the FDA in early 2020, we have incorporated FDA's feedback on key
elements of a proposed Phase 3 trial in first-line AML patients and have since finalized the protocol with the FDA. In early 2021, we initiated,
DASH  AML,  a  Phase  3  trial  with  a  targeted  full  enrollment  of  approximately  570  patients  with  DSTAT  in  combination  with  standard
chemotherapy (cytarabine plus anthracycline or “7+3”) in newly diagnosed AML patients. The primary endpoint of the trial is overall survival
(OS). The FDA has indicated that event-free survival (EFS) using complete response with hematologic recovery to define induction success
(CR), is acceptable as an endpoint for regulatory approval. Other endpoints to be evaluated in the proposed trial include: measurable residual
disease  (MRD),  relapse-free  survival  (RFS),  time  to  hematologic  recovery,  and  induction  response.  In  order  to  supplement  the  previously
collected data from the pilot and Phase 2 trials and provide additional evidence of DSTAT’s mechanism of action, the Phase 3 trial includes an
early assessment of comparative CR and MRD rates among the first 80 evaluable patients. This data is expected to be unblinded, reported
publicly,  and  available  for  ongoing  analysis  of  later  endpoints.  Prior  to  potential  unblinding,  this  data  will  be  reviewed  by  an  independent
DMC.  The  DMC  will  have  the  discretion  to  maintain  blinding  of  the  data  from  this  early  assessment  in  the  event  the  DSTAT  arm  shows
exceptional advantages to the control arm on CR and MRD, at certain pre-specified thresholds, which would allow inclusion of these patients
in the final analysis.

• Develop DSTAT for ALI. In 2020 we initiated a Phase 2/3 study of DSTAT in patients with acute lung injury (ALI) from COVID-19. We
have completed enrollment of cohorts 1 and 2 of the Phase 2 portion of the study, cohort 3 will initiate after the DMC meets to review initial
safety  data  from  cohort  2.  The  primary  endpoint  of  the  study  is  the  proportion  of  subjects  who  survive  and  do  not  require  mechanical
ventilation through day 28. Additional endpoints include time to improvement as assessed by the National Institute of Allergy and Infectious
Disease ordinal scale, time to hospital discharge, time to resolution of fever, number of ventilator-free days, all-cause mortality, and changes
in key biomarkers (e.g. IL-6, TNF-α, HMGB1, C-reactive protein and d-dimer). The Phase 2/3 study includes an assessment of all endpoints
and supportive biomarkers in Phase 2 to decide whether to continue to the Phase 3 portion of the study.
Seek opportunities to in-license other development programs. We continue to review transactions designed to build our product candidate
pipeline,  including,  but  not  limited  to,  merger  or  acquisition  transactions,  issuing  or  transferring  shares  of  common  stock,  or  the  license,
purchase or sale of specific assets, in addition to other potential actions aimed at maximizing stockholder value. There can be no assurance
that this review will result in the identification or consummation of any additional transaction.

•

Significant Agreements

BARDA

In  February  2011,  we  entered  into  a  contract  with  the  Biomedical  Advanced  Research  and  Development  Authority  (BARDA)  for  the  advanced
development of brincidofovir as a medical countermeasure in the event of a smallpox release. BARDA is a division of the U.S. Department of Health and
Human Services (DHHS) in the Office of the Assistant Secretary for Preparedness and Response that supports the advanced research and development,
manufacturing, acquisition and stockpiling of medical countermeasures. The scope of work for the contract includes preclinical, clinical and manufacturing
development activities that fall into the following areas: non-clinical animal efficacy studies; clinical activities; manufacturing activities; and all associated
regulatory, quality assurance, management, and administrative activities.

Under the contract, BARDA reimburses our costs, plus pays us a fixed fee, for the research and development of brincidofovir as a treatment of smallpox
infections. The contract consists of an initial performance period, referred to as the base performance

11

segment which ended on May 31, 2013, plus up to four extension periods, referred to as option segments, each of which may be exercised at BARDA’s sole
discretion.  We  must  complete  agreed  upon  milestones  and  deliverables  in  each  discrete  work  segment  before  the  next  option  segment  is  eligible  to  be
exercised.  Under  the  contract  as  currently  in  effect,  if  each  follow-on  option  segment  is  exercised  by  BARDA,  we  may  receive  up  to  $75.8  million  in
expense reimbursement and $5.3 million in fees.

We substantially completed the first option segment of the contract on August 28, 2014. In September 2014, we were awarded a contract extension for a
second option segment providing an additional $17.0 million. In August 2016, the contract was amended to provide an additional $535,000, in December
2017 the contract was amended to increase funding by an additional $4.1 million, and in January 2019 the contract was amended to increase funding by an
additional $2.3 million for the performance of the second option segment. The second option segment was completed on August 20, 2020. On September
11,  2015,  BARDA  exercised  the  third  option  segment,  which  provided  approximately  $12.9  million  in  funding  for  the  performance  of  the  segment.  In
December 2017, BARDA decreased the scope of this segment by removing a potential second pivotal ectromelia virus study which decreased the funding
of this option segment by $1.3 million to a total award of $11.6 million; the third option segment was completed on August 20, 2020. On June 17, 2020,
BARDA  exercised  the  fourth  option  segment,  which  provided  approximately  $4.6  million  in  funding  for  the  performance  of  the  segment.  Of  the  $75.8
million expense reimbursement and $5.3 million in fees that we may receive, approximately $78.9 million in expense reimbursement and fees has been
funded.  As  of  December  31,  2020,  of  the  $78.9  of  total  funding,  we  had  invoiced  an  aggregate  of  $75.5  million  with  respect  to  the  base  performance
segment and four option segments.

Pursuant to the contract, Chimerix and the U.S. government share the rights to any inventions made in the performance of our work under the contract.
Specifically, the U.S. government retains a nonexclusive, nontransferable, irrevocable, paid up license to any invention made in the performance of our
work under the contract, provided, however, that the U.S. government may, under certain circumstances, including circumstances involving public health
and safety, license such inventions to third parties without our consent. There have been no inventions made to date under the BARDA contract.

The contract may be terminated by BARDA ten days after giving us notice of a material default which remains uncured for ten days. In addition, BARDA
is also permitted under applicable law to terminate the contract if it is in the U.S. government’s best interest.

There are no RFPs for procurement of a smallpox antiviral pertaining to brincidofovir that are currently pending.

In the event a new RFP is issued we will likely submit a proposal. In the event that our proposal is chosen (potentially among several competing proposals)
and  before  we  can  enter  into  a  contract  we  must  negotiate  its  terms,  including  the  price  and  delivery  schedule.  In  addition,  as  a  governmental  agency,
BARDA’s ability to enter into a contract is subject to continued funding for this purpose, which can change at any time.

License and Development Agreement with Cantex Pharmaceuticals, Inc.

On  July  26,  2019,  the  Company  entered  into  a  License  and  Development  Agreement  with  Cantex  pursuant  to  which  the  Company  acquired  exclusive
worldwide rights to develop and commercialize, for any and all uses, a glycosaminoglycan compound known as DSTAT, which is currently being studied
for the treatment of acute myeloid leukemia. Under the terms of the license agreement, the Company is responsible for, and bears the costs of, worldwide
development  and  commercialization  of  DSTAT.  In  connection  with  the  transaction,  Cantex  assigned  to  the  Company  all  of  its  rights  under  its  DSTAT
supply  agreements,  including  its  bulk  API  agreement  with  Scientific  Protein  Laboratories  LLC  (SPL),  pursuant  to  which  SPL  will  exclusively  produce
DSTAT for the Company through October 2040.

In consideration for the license rights, the Company made an upfront cash payment of $30.0 million to Cantex and issued to Cantex 10.0 million shares of
its  common  stock.  For  the  twelve  months  ended  December  31,  2019,  the  Company  recognized  $65.0  million  of  acquired  in-process  research  and
development expenses for the $30.0 million upfront cash payment, the fair value of the 10.0 million shares of common stock issued to Cantex and $0.1
million  of  transaction  costs.  The  license  agreement  obligates  the  Company  to  pay  Cantex  regulatory  milestone  payments  of  up  to  $202.5  million  upon
receipt of product approvals in the United States, the European Union and Japan, and sales milestone payments of up to $385.0 million upon achievement
of specified net sales levels. The Company also agreed to pay Cantex tiered royalties based on percentages of net sales beginning at 10% and not to exceed
the high teens.

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SymBio Pharmaceuticals

On  September  30,  2019,  the  Company  entered  into  a  license  agreement  with  Symbio  for  the  exclusive  worldwide  rights  to  develop,  manufacture  and
commercialize  BCV  for  all  human  indications,  excluding  the  prevention  and  treatment  of  orthopoxviruses,  including  smallpox.  Under  the  terms  of  the
license agreement, SymBio will be responsible for, and bear the future costs of, worldwide development and commercialization of BCV in the licensed
indications. Either party may terminate the license agreement upon the occurrence of a material breach by the other party (subject to standard cure periods),
or upon certain events involving the bankruptcy or insolvency of the other party. SymBio may also terminate the license agreement without cause on a
country-by-country basis upon ninety days' prior notice.

In exchange for the license to BCV rights, the Company received an upfront payment of $5.0 million in October of 2019. In addition, the Company is
eligible to receive up to $180.0 million in clinical, regulatory and commercial milestones worldwide, as well as low double-digit royalties and additional
milestones based on commercial sales. Since entering into the license agreement in September 2019, the Company has recognized all of the $5.0 million of
revenue related to the upfront payment.

Merger Agreement with Oncoceutics Inc, and Fortis Advisors

On  January  7,  2021,  we  entered  into  an  agreement  with  the  securityholders  of  Oncoceutics  and  Fortis  Advisors  (as  securityholders  representative)  to
acquire  Oncoceutics,  a  privately-held,  clinical-stage  biotechnology  company  developing  imipridones,  a  novel  potential  class  of  compounds.  As
consideration for the acquisition, we (a) paid an upfront cash payment of approximately $25.0 million, (b) issued an aggregate of 8,723,769 shares of our
common stock, (c) issued a promissory note to the representative of the securityholders of Oncoceutics in the principal amount of $14.0 million, to be paid
in cash, upon the one year anniversary of the closing of the acquisition, and (d) agreed to make contingent payments up to an aggregate of $360.0 million
based on the achievement of certain development, regulatory and commercialization events, as well as additional tiered royalty payments based upon future
net sales of ONC-201 and ONC-206 products, subject to certain reductions, and a contingent payment in the event we receive any proceeds from the sale of
a rare pediatric disease priority review voucher based on the Oncoceutics products. We have also passed through to the Oncoceutics securityholders the
upfront payment received from China Resources Sanjiu Medical & Pharmaceutical Co., Ltd. pursuant to a license agreement entered into with Oncoceutics
prior  to  the  acquisition.  The  closing  payment  may  be  adjusted  after  the  closing,  pursuant  to  procedures,  in  connection  with  the  finalization  of  the  cash,
transaction expenses, debt and working capital amounts at closing. Pursuant to the merger agreement we have certain diligence obligations with respect to
further development and commercialization of the Oncoceutics product candidates.

Commercial Operations

In  2020,  we  submitted  an  NDA  for  BCV  tablet  and  an  NDA  for  BCV  suspension  for  the  treatment  of  smallpox.  In  December,  2020,  we  received
notification from the FDA of an April 7, 2021 PDUFA date related to our submissions. The U.S. government is the largest source of development and
procurement  funding  for  academic  and  biopharmaceutical  companies  contracting  biodefense  research  or  developing  vaccines,  anti-infectives  and
immunotherapies directed at potential agents of bioterror or biowarfare. U.S. government spending on biodefense programs includes development funding
awarded by the National Institute of Allergy and Infectious Diseases, BARDA and the Department of Defense (DoD), and procurement of countermeasures
by BARDA, the Centers for Disease Control and Prevention and the DoD. In addition to the U.S. government, we believe that potential additional markets
for the sale of biodefense countermeasures include:

•
•
•
•

foreign governments, including both defense and public health agencies;
non-governmental organizations and multinational companies, including transportation and security companies;
healthcare providers, including hospitals and clinics; and
state and local governments, which may be interested in these products to protect, among others, emergency responders, such as police, fire
and emergency medical personnel.

If BCV is approved by the FDA, it is not expected to be approved for sale beyond the Strategic National Stockpile. The Company would likely need to
meet additional regulatory requirements before sales were made in the U.S. beyond the Strategic National Stockpile.

If ONC201 is approved for recurrent H3 K27M-mutant glioma and/or DSTAT is approved for the treatment of AML, we believe it is possible for us to
commercialize  ONC201  and  DSTAT  in  the  United  States.  We  anticipate  that  commercialization  of  one  or  both  products  would  entail  a  relatively  small
commercial infrastructure, which may include a contract sales force, partner sales force, or an internally developed commercial organization.

13

Outside of the United States, subject to obtaining necessary marketing approvals, we may seek to commercialize ONC201 and DSTAT ourselves or through
distribution  or  other  collaboration  arrangements.  If  we  elect  to  develop  ONC201  for  other  indications  and  if  DSTAT  is  also  developed  for  other
hematologic  indications,  we  would  plan  to  do  so  selectively  either  on  our  own  or  by  establishing  alliances  with  one  or  more  pharmaceutical  company
collaborators, depending on, among other things, the applicable indications, the related development costs, reimbursement complexities and our available
resources.

Competition

Our industry is highly competitive and subject to rapid and significant technological change. While we believe that our therapeutic experience, scientific
and  commercial  knowledge  provide  us  with  competitive  advantages,  we  will  face  competition  from  large  and  small  pharmaceutical  and  biotechnology
companies, including specialty pharmaceutical and generic drug companies, and other emerging technologies.

We believe that the key competitive factors that will affect the commercial success of BCV, ONC201, DSTAT and our other product candidates are the
efficacy,  safety  and  tolerability  profile  and  the  risk-benefit  trade-off  compared  to  alternative  therapies  or  procedures.  Securing  market  access  and
reimbursement will be an important element of product uptake and market penetration. Our commercial opportunity could be negatively impacted if our
competitors develop or market products or other technologies that are more effective, better tolerated, safer, more convenient or have greater market access
than  BCV,  ONC201  and  DSTAT,  or  obtain  regulatory  approval  for  their  products  more  rapidly  than  we  do.  In  addition,  our  ability  to  compete  will  be
affected by the availability of generic products.

ONC201 is the most clinically advanced program for potentially treating tumors which harbor the H3 K27M mutation in recurrent diffuse midline glioma
patients. If approved, treatment with ONC201 is expected to be targeted to patients whose tumor harbors the H3 K27M mutation. There are currently no
commercially available treatments that target the H3 K27M mutant patient population.

If approved, ONC201 could compete with a number of existing products, new products in development and possible combination therapies used for brain
cancers including generic drugs such as chemotherapy, targeted agents, immunotherapies, and other therapies. Select products that are currently used, or
being developed for use, to treat brain cancers include, but are not limited to:

Systemic therapies approved to treat brain cancer: temozolomide, lomustine, carmustine, everolimus, and bevacizumab
Tumor-treating fields such as Optune®

•
•
• Other  investigational  agents  for  the  treatment  of  brain  cancer:  immunotherapies  (CAR-T,  durvalumab,  VBI-1901,  etc),  viral  therapies

(DCVax-L, etc.), targeted agents (panobinostat, paxalisib, MDNA55) and other therapies

If  approved,  DSTAT  would  compete  with  a  number  of  existing  products,  new  products  in  development  and  other  types  of  combination  therapies  in
development for first line AML including generic drugs such as standard 7+3 (cytarabine plus anthracycline) chemotherapy, alternative non-chemo based
therapy regimens and other 7+3 combination therapies that target specific mutations. Select products that are currently used, or being developed for use, to
treat AML include but are not limited to:

•

Standard  7+3  (cytarabine  plus  anthracycline)  with  or  without  targeted  agents  (including  but  not  limited  to  the  experimental  treatment
uproleselan,  Mylotarg®,  IDH1  and  IDH2  inhibitors  (enasidenib  and  ivosidenib),  FLT-3  inhibitors  (midostaurin  and  gilteritinib),  and  other
targeted agents such as gemtuzumab, glasdegib, and venetoclax));

• Vyxeos® and combinations with Vyxeos;
• Hypomethylating agents or low dose cytarabine with or without venetoclax; and
• Other consolidation and maintenance therapies (including hypomethylating agents, venetoclax, and stem cell transplantation).

Clinical  trials  with  these  alternatives  have  the  potential  to  compete  for  and  thus  slow  enrollment  in  the  DSTAT  clinical  development  program,  with
resulting impacts on the time to Phase 3 results (and thus time to market). Competition for patients and/or evolutions in the standard of care could render
the  completion  of  Phase  3  clinical  development  not  feasible.  Even  if  DSTAT  clinical  trials  are  successful,  we  anticipate  that  we  will  face  intense  and
increasing competition as new products enter the market, as advanced technologies become available and as increasing numbers of generic formulations of
currently branded products become available.

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Changes  in  the  health  care  system  may  limit  our  ability  to  price  BCV,  ONC201,  DSTAT  and  our  other  product  candidates  at  a  level  that  would  allow
recovery of our research and development costs and may impede our ability to generate or maintain a profit.

We  believe  that  BCV,  ONC201,  and  DSTAT  have  potential  benefits  over  existing  and  potential  competitive  products  as  described  in  more  detail  under
“Business - ONC201”, “Business - Dociparstat sodium” and “Business - Brincidofovir”, respectively. As a result, we believe that these products should be
well  positioned  to  gain  adoption  if  we  obtain  the  required  regulatory  approvals.  However,  even  with  those  benefits,  we  may  not  be  able  to  make
promotional claims that these products are superior to competing products without conducting additional studies, which delivers differentiated data. See
“Risk Factors - Risks Related to Commercialization of Our Product Candidates.”

Our Intellectual Property

We  strive  to  protect  and  enhance  the  proprietary  technologies  we  believe  are  important  to  our  business,  including  by  seeking  and  maintaining  patents
intended to cover our products and compositions, their methods of use and any other inventions that are important to the development of our business. We
also rely on trade secrets to protect aspects of our business that are not amenable to, or that we do not consider appropriate for, patent protection.

Our success will depend significantly on our ability to obtain and maintain patent and other proprietary protection for commercially important technology,
inventions and know-how related to our business, defend and enforce our patents, maintain licenses to our intellectual property owned by third parties,
preserve the confidentiality of our trade secrets and operate without infringing the valid and enforceable patents and proprietary rights of third parties.

Antiviral Patent Portfolio

At February 15, 2021, our worldwide antiviral patent portfolio included:

•

•

•

74 patents or patent applications that we own or have in-licensed from academic institutions, related to brincidofovir, and other antivirals, which
represented a decrease over the number of patents in our patent portfolio at the end of fiscal year 2019;
This  includes  53  US  and  foreign  exclusively  and  jointly  owned  patents  and  21  US  and  foreign  applications  related  to  brincidofovir,  and  other
antivirals. Granted European and Eurasian patents are counted as one patent and have been validated throughout Europe and Eurasia;
Four  jointly-owned  patents  and  two  jointly-owned  patent  applications  related  to  our  agreement  with  UM  regarding  our  proprietary  Chemical
Library; and

• One  US  and  one  European  patent  application  exclusively  owned  by  Chimerix  directed  to  a  morphic  form  of  a  compound  from  the  Chemical

Library.

In 2015, U.S. Patent No. 8,962,829 covering a method of synthesis and the commercial morphic form of brincidofovir was issued to Chimerix. With the
addition of this patent, composition of matter coverage for brincidofovir in the U.S. is expected to extend to October 2034, excluding any additional term
from patent term adjustments or patent term extensions.

DSTAT Patent Portfolio

•
•
•

40 patents or patent applications that we own or have in-licensed from Cantex, related to DSTAT;
This includes 24 US and foreign issued patents and 16 pending US and foreign applications related to DSTAT;
Patent protection for DSTAT is expected to extend through 2033, with the potential for 2038 in the U.S. in the event of full patent term restoration.

Oncoceutics Patent Portfolio

•

•
•

156 patents or patent applications related to imipridones that we have acquired rights to through our merger with Oncoceutics, Inc. (owned or in-
licensed by Oncoceutics);
This includes 29 US and foreign issued patents and 70 pending US and foreign applications related to ONC201;
Patent protection for ONC201's lead indication is expected to extend into 2037 in the U.S., with the potential for 2042 in the U.S. in the event of
full patent term restoration.

15

Patents generally have a term of twenty years from the date they are filed. As our patent portfolio has been built over time, the remaining terms of the
individual  patents  across  our  patent  portfolio  vary.  We  believe  that  our  patents  and  patent  applications  are  important  for  maintaining  the  competitive
differentiation  of  our  lipid-antiviral-conjugate  technology  platform  and  the  Chimerix  Chemical  Library,  enhancing  our  freedom  of  action  to  sell  our
antivirals, upon appropriate regulatory approvals, in markets in which we choose to participate, and maximizing our return on research and development
investments. No single patent is in itself essential to the conduct of our business as a whole.

We  also  seek  to  expand  our  intellectual  property  portfolio  through  licensing  intellectual  property  from  third  parties  as  we  deem  appropriate.  We  have
granted, and will continue to grant to others, licenses under our patents when we consider these arrangements to be in our interest.

Manufacturing

We do not own or operate, and we do not expect to own or operate, facilities for product manufacturing, storage and distribution, or testing. In the past, we
have relied on third-party manufacturers for supply of our product candidates, ONC201, DSTAT and BCV, as well as our other product candidates.

We expect that in the future we will rely on such manufacturers for supply of drug substance and drug product that will be used in clinical trials of DSTAT,
our expanded access program for ONC201 and other clinical trials as well as for commercial purposes should ONC201, DSTAT or BCV be approved. In
July 2019, we were assigned Cantex’s rights under a supply agreement with Scientific Protein Labs (SPL) pursuant to which SPL will exclusively produce
DSTAT drug substance for us through October 2040 (the Supply Agreement). We have agreed that SPL will be our exclusive provider of DSTAT during the
term  of  the  Supply  Agreement.  In  addition,  in  July  2019  we  were  assigned  Cantex’s  rights  under  a  supply  agreement  with  Pyramid  Laboratories  Inc.
(Pyramid) pursuant to which Pyramid will provide DSTAT finished drug product to us. When produced on a commercial scale, we expect that cost-of-
goods-sold relating to ONC201, DSTAT and BCV will generally be in-line with that of other targeted oncology therapies, heparin-derived molecules and
small-molecule pharmaceutical compounds, respectively.

The manufacturing process for brincidofovir drug substance is relatively straight-forward and generally in-line with other small molecule pharmaceutical
compounds in terms of cost and complexity. The process is robust and reproducible, does not require dedicated reactors or specialized equipment, uses
common synthetic chemistry and readily available materials, including off-the-shelf and made-to-order starting materials, and is readily transferable.

Our  current  drug  substance  supply  chain  for  brincidofovir  involves  various  contractors  that  supply  the  raw  materials  for  the  drug  substance  process,  a
contract  manufacturer  for  an  intermediate,  and  a  contract  manufacturer  for  the  drug  substance.  We  have  a  validated  large-scale  drug  substance
manufacturing process at our selected contractor that will produce the potential procurement supply of drug substance. Manufacturers of drug components
must meet certain FDA qualifications with respect to manufacturing standards. At present, we have qualified only one firm as a supplier of drug substance.
We continually assess our manufacturing needs and may seek to engage additional qualified vendors as circumstances dictate. Changes in our requirements
may  require  revalidation  of  the  manufacturing  process  at  a  different  scale  and  potentially  at  a  different  contractor  depending  on  the  necessary  scale,
infrastructure and technical capabilities. To ensure continuity in our supply chain, we plan to establish supply arrangements with alternative suppliers for
certain portions of our supply chain, as appropriate.

Our  BCV  drug  products  (tablets  and  oral  suspension)  are  also  manufactured  by  contract  development  and  manufacturing  organizations  (CDMOs).  The
CDMOs must meet certain FDA qualifications with respect to manufacturing standards. Manufacturers for each product have been selected and qualified
with  registration  and  validation  batches  to  support  NDA  marketing  applications  with  the  FDA.  In  addition,  scale  up  of  both  the  tablet  and  suspension
products is in progress that will produce potential procurement supplies.

Manufacturing  is  subject  to  extensive  regulations  that  impose  various  procedural  and  documentation  requirements,  which  govern  record  keeping,
manufacturing processes and controls, personnel, quality control and quality assurance, among others. Our systems and contractors are required to be in
compliance with these regulations, and this is assessed regularly through monitoring of performance and a formal audit program. We have personnel with
extensive  technical,  manufacturing,  analytical  and  quality  experience  and  strong  project  management  discipline  to  oversee  contract  manufacturing  and
testing activities, and to compile manufacturing and quality information for our regulatory submissions.

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Government Regulation and Product Approval

Government authorities in the United States, at the federal, state and local level, and government authorities of member states of the EU and other countries
extensively regulate, among other things, the research, development, testing, manufacture, quality control, approval, labeling, packaging, storage, record-
keeping, promotion, advertising, distribution, post-approval monitoring and reporting, marketing and export and import of products such as those we are
developing. Any product candidate that we develop must be approved by the FDA or EMA before it may be legally marketed in the United States or EU
and in other countries by the responsible national regulatory agency before it may be legally marketed.

U.S. Drug Development Process

In  the  United  States,  the  FDA  regulates  drugs  under  the  Federal  Food,  Drug  and  Cosmetic  Act  (FDCA),  and  implementing  regulations.  Drugs  are  also
subject  to  other  federal,  state  and  local  statutes  and  regulations.  The  process  of  obtaining  regulatory  approvals  and  the  subsequent  compliance  with
appropriate federal, state, local and foreign statutes and regulations require the expenditure of substantial time and financial resources. Failure to comply
with the applicable U.S. requirements at any time during the product development process, FDA approval process or after FDA approval, may subject an
applicant to administrative or judicial civil or criminal sanctions. FDA sanctions could include refusal to approve pending applications, withdrawal of an
approval, clinical hold, warning letters, product recalls, product seizures, total or partial suspension of production or distribution, injunctions, fines, refusals
of government contracts, debarment, restitution, disgorgement or civil or criminal penalties. Any agency or judicial enforcement action, whether before or
after the FDA approval process, could have a material adverse effect on us. The process required by the FDA before a drug may be marketed in the United
States generally involves the following:

•

•
•

•
•

•

completion  of  nonclinical  laboratory  tests,  animal  studies  and  formulation  studies  according  to  good  laboratory  practices  (GLP),  or  other
applicable regulations;
submission to the FDA of an application for an IND, which must become effective before human clinical trials may begin;
performance of adequate and well-controlled human clinical trials according to the FDA’s regulations commonly referred to as current good
clinical practices (GCPs), to establish the safety and efficacy of the proposed drug for its intended use;
submission to the FDA of a NDA for a new drug;
satisfactory completion of an FDA inspection of the manufacturing facility or facilities where the drug is produced to assess compliance with
the FDA’s current good manufacturing practice standards (cGMP), to assure that the facilities, methods and controls are adequate to preserve
the drug’s identity, strength, quality and purity;
potential  FDA  inspection  of  the  nonclinical  and  clinical  trial  sites  that  generated  the  data  in  support  of  the  NDA;  and  FDA  review  of  the
NDA.

The lengthy process of seeking required approvals and the continuing need for compliance with applicable statutes and regulations require the expenditure
of substantial resources and approvals are inherently uncertain.

Before  testing  any  compounds  with  potential  therapeutic  value  in  humans,  the  drug  candidate  enters  the  preclinical  testing  stage.  Preclinical  tests,  also
referred  to  as  nonclinical  studies,  include  laboratory  evaluations  of  product  chemistry,  toxicity  and  formulation,  as  well  as  animal  studies  to  assess  the
potential safety and activity of the drug candidate. The conduct of the preclinical tests must comply with federal regulations and requirements including
GLP. The sponsor must submit the results of the preclinical tests, together with manufacturing information, analytical data, any available clinical data or
literature  and  a  proposed  clinical  protocol  to  the  FDA  as  part  of  the  IND.  The  IND  automatically  becomes  effective  30  days  after  receipt  by  the  FDA,
unless the FDA places the clinical trial on a clinical hold within that 30-day time period. In such a case, the IND sponsor and the FDA must resolve any
outstanding concerns before the clinical trial can begin. The FDA may also impose clinical holds on a drug candidate at any time before or during clinical
trials due to safety concerns or non-compliance. Accordingly, we cannot be sure that submission of an IND will result in the FDA allowing clinical trials to
begin, or that, once begun, issues will not arise that suspend or terminate such trial.

Clinical  trials  involve  the  administration  of  the  drug  candidate  to  healthy  subjects  or  affected  patients  under  the  supervision  of  qualified  investigators,
generally physicians not employed by or under the trial sponsor’s control. Clinical trials are conducted under protocols detailing, among other things, the
objectives of the clinical trial, dosing procedures, subject selection and exclusion criteria, and the parameters to be used to monitor subject safety. Each
protocol  must  be  submitted  to  the  FDA  as  part  of  the  IND.  Patients  not  meeting  protocol  inclusion  and  exclusion  criteria  may  be  considered  for  our
expanded access program under the IND. Clinical trials must be conducted in accordance with the FDA’s regulations comprising the good clinical practices
requirements. Further, each clinical trial must be reviewed and approved by an independent institutional review board

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(IRB),  at  or  servicing  each  institution  at  which  the  clinical  trial  will  be  conducted.  An  IRB  is  charged  with  protecting  the  welfare  and  rights  of  trial
participants and considers such items as whether the risks to individuals participating in the clinical trials are minimized and are reasonable in relation to
anticipated benefits. The IRB also approves the form and content of the informed consent that must be signed by each clinical trial subject or his or her
legal representative and must monitor the clinical trial until completed.

Human clinical trials are typically conducted in three sequential phases that may overlap or be combined:

•

•

•

Phase  1.      The  drug  is  initially  introduced  into  healthy  human  subjects  and  tested  for  safety,  dosage  tolerance,  absorption,  metabolism,
distribution  and  excretion.  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, the initial human testing is often conducted in patients.
Phase 2.   The drug is evaluated in a limited patient population to identify possible adverse effects and safety risks, to preliminarily evaluate
the efficacy of the product for specific targeted diseases and to determine dosage tolerance, optimal dosage and dosing schedule.
Phase  3.      Clinical  trials  are  undertaken  to  further  evaluate  dosage,  clinical  efficacy  and  safety  in  an  expanded  patient  population  at
geographically  dispersed  clinical  trial  sites.  These  clinical  trials  are  intended  to  establish  the  overall  risk/benefit  ratio  of  the  product  and
provide an adequate basis for product labeling. Generally, two adequate and well-controlled Phase 3 clinical trials are required by the FDA for
approval of an NDA.

Post-approval clinical trials, sometimes referred to as Phase 4 clinical trials, may be conducted after initial marketing approval. These clinical trials are
used to gain additional experience from the treatment of patients in the intended therapeutic indication.

Annual progress reports detailing the results of the clinical trials must be submitted to the FDA and written IND safety reports must be promptly submitted
to the FDA and the investigators for serious and unexpected adverse events or any finding from tests in laboratory animals that suggests a significant risk
for human subjects. Phase 1, Phase 2 and Phase 3 clinical trials may not be completed successfully within any specified period, if at all. The FDA or the
sponsor or its data safety monitoring board may suspend a clinical trial at any time on various grounds, including a finding that the research subjects or
patients  are  being  exposed  to  an  unacceptable  health  risk.  Similarly,  an  IRB  can  suspend  or  terminate  approval  of  a  clinical  trial  at  its  institution  if  the
clinical trial is not being conducted in accordance with the IRB’s requirements or if the drug has been associated with unexpected serious harm to patients.

Concurrent with clinical trials, companies usually complete additional animal studies and must also develop additional information about the chemistry and
physical  characteristics  of  the  drug  as  well  as  finalize  a  process  for  manufacturing  the  product  in  commercial  quantities  in  accordance  with  cGMP
requirements. The manufacturing process must be capable of consistently producing quality batches of the drug candidate and, among other things, must
develop methods for testing the identity, strength, quality and purity of the final drug. Additionally, appropriate packaging must be selected and tested and
stability studies must be conducted to demonstrate that the drug candidate does not undergo unacceptable deterioration over its shelf life.

U.S. Review and Approval Processes

The results of product development, nonclinical studies and clinical trials, along with descriptions of the manufacturing process, analytical tests conducted
on the chemistry of the drug, proposed labeling and other relevant information are submitted to the FDA as part of an NDA requesting approval to market
the product. The submission of an NDA is subject to the payment of substantial user fees; a waiver of such fees may be obtained under certain limited
circumstances.

In addition, under the Pediatric Research Equity Act (PREA), an NDA or supplement to an NDA must contain data to assess the safety and effectiveness of
the drug 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.  The  FDA  may  grant  deferrals  for  submission  of  data  or  full  or  partial  waivers.  Unless  otherwise  required  by
regulation, PREA does not apply to any drug for an indication for which orphan designation has been granted.

The FDA reviews all NDAs submitted to determine if they are substantially complete before it accepts them for filing; this initial review period prior to
accepting the NDA for filing is 2 months in duration. Once the submission is accepted for filing, the FDA begins an in-depth review of the NDA. Under the
goals and policies agreed to by the FDA under the Prescription Drug User Fee Act (PDUFA), the FDA has 10 months from the date of accepting the NDA
for filing in which to complete its initial review of a standard NDA and respond to the applicant, and six months for a priority NDA. The FDA does not
always meet its PDUFA goal dates for standard and priority NDAs. The review process and the PDUFA goal date may be extended if the FDA

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requests or the NDA sponsor otherwise provides additional information or clarification regarding information already provided in the submission without
prior agreement reached at a pre-submission meeting.

After the NDA submission is accepted for filing, the FDA reviews the NDA to determine, among other things, whether the proposed product is safe and
effective  for  its  intended  use,  and  whether  the  product  is  being  manufactured  in  accordance  with  cGMP  to  assure  and  preserve  the  product’s  identity,
strength, quality and purity. The FDA may refer applications for novel drug or biological products or drug or biological products which present difficult
questions  of  safety  or  efficacy  to  an  advisory  committee,  typically  a  panel  that  includes  clinicians  and  other  experts,  for  review,  evaluation  and  a
recommendation  as  to  whether  the  application  should  be  approved  and  under  what  conditions.  The  FDA  is  not  bound  by  the  recommendations  of  an
advisory  committee,  but  it  considers  such  recommendations  carefully  when  making  decisions.  During  the  drug  approval  process,  the  FDA  also  will
determine  whether  a  risk  evaluation  and  mitigation  strategy  (REMS),  is  necessary  to  assure  the  safe  use  of  the  drug.  If  the  FDA  concludes  a  REMS  is
needed, the sponsor of the NDA must submit a proposed REMS. The FDA will not approve the NDA without a REMS, if required.

Before  approving  an  NDA,  the  FDA  will  inspect  the  facilities  at  which  the  product  is  manufactured.  The  FDA  will  not  approve  the  product  unless  it
determines that the manufacturing processes and facilities are in compliance with cGMP requirements and adequate to assure consistent production of the
product within required specifications. Additionally, before approving an NDA, the FDA will typically inspect one or more clinical sites to assure that the
clinical trials were conducted in compliance with IND study requirements. If major issues with trial conduct are identified at a site, data collected from that
site  can  be  determined  to  be  unacceptable  for  supporting  the  application.  If  the  FDA  determines  that  the  application,  manufacturing  process  or
manufacturing facilities are not acceptable it will outline the deficiencies in the submission and often will request additional testing or information.

The NDA review and approval process is lengthy and difficult and the FDA may refuse to approve an NDA if the applicable regulatory criteria are not
satisfied or may require additional clinical data or other data and information. Even if such data and information is submitted, the FDA may ultimately
decide that the NDA does not satisfy the criteria for approval. Data obtained from clinical trials are not always conclusive and the FDA may interpret data
differently than we interpret the same data. The FDA will issue a complete response letter if the agency decides not to approve the NDA. The complete
response letter usually describes all of the specific deficiencies in the NDA identified by the FDA. The deficiencies identified may be minor, for example,
requiring labeling changes, or major, for example, requiring additional clinical trials. Additionally, the complete response letter may include recommended
actions that the applicant might take to place the application in a condition for approval. If a complete response letter is issued, the applicant may either
resubmit the NDA, addressing all of the deficiencies identified in the letter, or withdraw the application.

If  a  product  receives  regulatory  approval,  the  approval  may  be  significantly  limited  to  specific  diseases  and  dosages  or  the  indications  for  use  may
otherwise be limited, which could restrict the commercial value of the product. Further, the FDA may require that certain contraindications, warnings or
precautions be included in the product labeling. In addition, the FDA may require post marketing clinical trials, sometimes referred to as Phase 4 clinical
trials testing, which involves clinical trials designed to further assess a drug’s safety and effectiveness and may require testing and surveillance programs to
monitor the safety of approved products that have been commercialized.

Orphan Drug Designation

Our  investigational  agent,  ONC201  has  been  granted  an  orphan  drug  designation  for  the  treatment  of  glioblastoma  and  for  the  treatment  of  malignant
glioma. DSTAT also has orphan drug designation for the treatment of AML. In addition, BCV has been granted orphan drug designation for the treatment
of  smallpox.  Under  the  Orphan  Drug  Act,  the  FDA  may  grant  orphan  designation  to  a  drug  or  biological  product  intended  to  treat  a  rare  disease  or
condition, which is generally a disease or condition that affects fewer than 200,000 individuals in the United States, or more than 200,000 individuals in the
United States and for which there is no reasonable expectation that the cost of developing and making a drug or biological product available in the United
States for this type of disease or condition will be recovered from sales of the product. Orphan product designation must be requested before submitting an
NDA.  After  the  FDA  grants  orphan  product  designation,  the  identity  of  the  therapeutic  agent  and  its  potential  orphan  use  are  disclosed  publicly  by  the
FDA. Orphan product designation does not convey any advantage in or shorten the duration of the regulatory review and approval process.

If a product that has orphan designation subsequently receives the first FDA approval for the disease or condition for which it has such designation, the
product is entitled to orphan product exclusivity, which means that the FDA may not approve any other applications to market the same drug or biological
product  for  the  same  indication  for  seven  years,  except  in  limited  circumstances,  such  as  a  showing  of  clinical  superiority  to  the  product  with  orphan
exclusivity.  Competitors,  however,  may  receive  approval  of  different  products  for  the  indication  for  which  the  orphan  product  has  exclusivity  or  obtain
approval for the

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same product but for a different indication for which the orphan product has exclusivity. Orphan product exclusivity also could block the approval of a
product for seven years if a competitor obtains approval of the same drug or biological product as defined by the FDA or if a drug candidate is determined
to be contained within the competitor’s product for the same indication or disease. If a drug or biological product designated as an orphan product receives
marketing approval for an indication broader than what is designated, it may not be entitled to orphan product exclusivity.

Expedited Development and Review Programs

The  FDA  has  a  number  of  programs  that  are  intended  to  expedite  or  facilitate  the  process  for  reviewing  new  drugs  and  biological  products  for  serious
conditions  that  meet  certain  criteria.  Specifically,  new  drugs  and  biological  products  are  eligible  for  Fast  Track,  Breakthrough  Therapy,  and/or  Priority
Review designation if they are intended to treat a serious or life-threatening condition and demonstrate the potential to address unmet medical needs for the
condition. Fast Track designation applies to the combination of the product and the specific indication for which it is being studied. Our investigational
agents, ONC201, DSTAT and BCV, have been granted Fast Track designation. In December 2020, we announced that the FDA had accepted the filing of
the NDA for BCV as a medical countermeasure for smallpox, granted Priority Review and set an action date of April 7, 2021 under the Prescription Drug
User Fee Act (PDUFA).

Breakthrough Therapy designation is for a drug that is intended to treat a serious condition and preliminary clinical evidence indicates that the drug may
demonstrate substantial improvement on a clinically significant endpoint(s) over available therapies.

Unique to Fast Track and Breakthrough Therapy products, the FDA may consider for review sections of the NDA on a rolling basis before the complete
application is submitted, if the sponsor provides a schedule for the submission of the sections of the NDA, the FDA agrees to accept sections of the NDA
and determines that the schedule is acceptable, and the sponsor pays any required user fees upon submission of the first section of the NDA.

Any product submitted to the FDA for marketing approval, including Fast Track and Breakthrough Therapy programs, may also be eligible for other types
of  FDA  programs  intended  to  expedite  development  and  review,  such  as  priority  review  and  accelerated  approval.  Any  product  is  eligible  for  priority
review  if  it  has  the  potential  to  provide  safe  and  effective  therapy  where  no  satisfactory  alternative  therapy  exists  or  a  significant  improvement  in  the
treatment, diagnosis or prevention of a disease compared to marketed products. The FDA will attempt to direct additional resources to the evaluation of an
application for a new drug or biological product designated for priority review in an effort to facilitate the review. Additionally, a product may be eligible
for  accelerated  approval.  Drug  or  biological  products  studied  for  their  safety  and  effectiveness  in  treating  serious  or  life-threatening  illnesses  and  that
provide meaningful therapeutic benefit over existing treatments may receive accelerated approval, which means that they may be approved on the basis of
adequate and well-controlled clinical trials establishing that the product has an effect on a surrogate endpoint that is reasonably likely to predict a clinical
benefit, or on the basis of an effect on a clinical endpoint other than survival or irreversible morbidity. As a condition of approval, the FDA may require
that a sponsor of a drug or biological product receiving accelerated approval perform adequate and well-controlled post-marketing clinical trials to establish
safety and efficacy for the approved indication. In addition, the FDA currently requires as a condition for accelerated approval pre-review of promotional
materials, which could adversely impact the timing of the commercial launch of the product. Fast Track, Breakthrough, and Priority Review designations
and accelerated approval do not change the standards for approval but may expedite the development or approval process.

Emergency Use Authorization

The Emergency Use Authorization (EUA) authority allows FDA to facilitate availability and unapproved uses of medical countermeasures (MCMs) needed
to prepare for and respond to chemical, biological, radiological, and nuclear (CBRN) emergencies. The EUA authority is separate from use of a drug under
an  investigational  application  (IND).  As  a  first  step,  the  Secretary  of  HHS  makes  the  declaration  of  emergency  or  threat  justifying  authorization  of
emergency  use.  Then  the  FDA  Commissioner  authorizes  the  emergency  use  of  an  unapproved  medical  product  or  an  unapproved  use  of  an  approved
medical  product  for  certain  emergency  circumstances.  This  allows  an  MCM  to  be  used  in  an  emergency  to  diagnose,  treat,  or  prevent  serious  or  life-
threatening diseases or conditions caused by a CBRN agent when there are no adequate, approved, and available alternatives. A formal request to issue an
EUA is generally submitted by government sponsors (e.g., HHS or the Department of Defense (DoD)) but not until the Secretary of HHS has issued the
declaration. An EUA request includes a summary of the available scientific evidence regarding the product's safety and effectiveness, risks (including an
adverse event profile) and benefits, and any available, approved alternatives to the product. Also included are manufacturing information and Fact sheets
which are comparable to an FDA-approved package insert.

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Animal Efficacy Rule

FDA permits the approval of certain drugs and biologics that are intended to reduce or prevent serious or life-threatening conditions based on evidence of
safety from clinical trial(s) in healthy subjects and effectiveness from appropriate animal studies when human efficacy studies are not ethical or feasible.
These regulations, which are known as the “Animal Rule”, authorize the FDA to rely on animal studies to provide evidence of a product’s effectiveness
under circumstances where there is a reasonably well-understood mechanism for the activity of the agent. Under these requirements, and with the FDA’s
prior agreement, drugs used to reduce or prevent the toxicity of chemical, biological, radiological or nuclear substances may be approved for use in humans
based on evidence of effectiveness derived from appropriate animal studies and any additional supporting data. Products evaluated under this rule must
demonstrate effectiveness through pivotal animal studies, which are generally equivalent in design and robustness to Phase 3 clinical studies. The animal
study endpoint must be clearly related to the desired benefit in humans and the information obtained from animal studies must allow for selection of an
effective dose in humans. Safety under this rule is established under preexisting requirements, including safety studies in both animals (toxicology) and
humans.  Products  approved  under  the  Animal  Rule  are  subject  to  additional  requirements  including  post-marketing  study  requirements,  restrictions
imposed on marketing or distribution or requirements to provide information to patients.

Post-Approval Requirements

Any  drug  products  for  which  we  or  our  strategic  alliance  partners  receive  FDA  approvals  are  subject  to  continuing  regulation  by  the  FDA,  including,
among other things, record-keeping requirements, reporting of adverse experiences with the product, providing the FDA with updated safety and efficacy
information,  product  sampling  and  distribution  requirements,  complying  with  certain  electronic  records  and  signature  requirements  and  complying  with
FDA  promotion  and  advertising  requirements.  These  promotion  and  advertising  agreements  include,  among  others,  standards  for  direct-to-consumer
advertising, promoting drugs for uses or in patient populations that are not described in the drug’s approved labeling (known as “off-label use”), industry-
sponsored  scientific  and  educational  activities,  and  promotional  activities  involving  the  internet.  Failure  to  comply  with  FDA  requirements  can  have
negative consequences, including adverse publicity, enforcement letters from the FDA, mandated corrective advertising or communications with doctors,
and  civil  or  criminal  penalties.  Although  physicians  may  prescribe  legally  available  drugs  for  off-label  uses,  manufacturers  may  not  market  or  promote
such off-label uses.

We  will  rely,  and  expect  to  continue  to  rely,  on  third  parties  for  the  production  of  clinical  and  commercial  quantities  of  any  products  that  we  may
commercialize.  Our  strategic  alliance  partners  may  also  utilize  third  parties  for  some  or  all  of  a  product  we  are  developing  with  such  strategic  alliance
partner. Manufacturers of our products are required to comply with applicable FDA manufacturing requirements contained in the FDA’s cGMP regulations.
cGMP  regulations  require  among  other  things,  quality  control  and  quality  assurance  as  well  as  the  corresponding  maintenance  of  records  and
documentation.  Drug  manufacturers  and  other  entities  involved  in  the  manufacture  and  distribution  of  approved  drugs  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 cGMP and other laws. Accordingly, manufacturers must continue to expend time, money, and effort in the area of production and quality
control to maintain cGMP compliance. Discovery of problems with a product after approval may result in restrictions on a product, manufacturer, or holder
of an approved NDA, including withdrawal of the product from the market. In addition, changes to the manufacturing process generally require prior FDA
approval before being implemented and other types of changes to the approved product, such as adding new indications and additional labeling claims, are
also subject to further FDA review and approval.

The FDA also may require post-marketing testing, known as Phase 4 testing, risk minimization action plans and surveillance to monitor the effects of an
approved product or place conditions on an approval that could restrict the distribution or use of the product.

U.S. Patent Term Restoration and Marketing Exclusivity

Depending  upon  the  timing,  duration  and  specifics  of  the  FDA  approval  of  the  use  of  our  drug  candidates,  some  of  our  United  States  patents  may  be
eligible for limited patent term extension under the Drug Price Competition and Patent Term Restoration Act of 1984, commonly referred to as the Hatch-
Waxman Amendments. The Hatch-Waxman Amendments permit a patent restoration term of up to five years as compensation for patent term lost during
product development and the FDA regulatory review process. However, patent term restoration cannot extend the remaining term of a patent beyond a total
of 14 years from the product’s approval date. The patent term restoration period is generally one-half the time between the effective date of an IND and the
submission date of an NDA, plus the time between the submission date of an NDA and the approval of that application. Only one patent applicable to an
approved drug is eligible for the extension and the application for the extension must be submitted prior to the expiration of the patent. The United States
Patent and Trademark Office, in consultation with the

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FDA, reviews and approves the application for any patent term extension or restoration. In the future, we may apply for restoration of patent term for one
of our currently owned or licensed patents to add patent life beyond its current expiration date, depending on the expected length of the clinical trials and
other factors involved in the filing of the relevant NDA.

Market  exclusivity  provisions  under  the  FDCA  can  also  delay  the  submission  or  the  approval  of  certain  applications  of  other  companies  seeking  to
reference  another  company’s  NDA.  The  FDCA  provides  a  five-year  period  of  non-patent  marketing  exclusivity  within  the  United  States  to  the  first
applicant to obtain approval of an NDA for a new chemical entity. A drug is a new chemical entity if the FDA has not previously approved any other new
drug containing the same active moiety, which is the molecule or ion responsible for the action of the drug substance. During the exclusivity period, the
FDA may not accept for review an abbreviated new drug application (ANDA), or a 505(b)(2) NDA submitted by another company for another version of
such  drug  where  the  applicant  does  not  own  or  have  a  legal  right  of  reference  to  all  the  data  required  for  approval.  However,  an  application  may  be
submitted after four years if it contains a certification of patent invalidity or non-infringement to one of the patents listed with the FDA by the innovator
NDA holder. The FDCA also provides three years of marketing exclusivity for an NDA, or supplement to an existing NDA if new clinical investigations,
other  than  bioavailability  studies,  that  were  conducted  or  sponsored  by  the  applicant  are  deemed  by  the  FDA  to  be  essential  to  the  approval  of  the
application, for example new indications, dosages or strengths of an existing drug. This three-year exclusivity covers only the conditions associated with
the new clinical investigations and does not prohibit the FDA from approving ANDAs for drugs containing the original active agent. Five-year and three-
year exclusivity will not delay the submission or approval of a full NDA. However, an applicant submitting a full NDA would be required to conduct or
obtain a right of reference to all of the preclinical studies and adequate and well-controlled clinical trials necessary to demonstrate safety and effectiveness.
Pediatric  exclusivity  is  another  type  of  regulatory  market  exclusivity  in  the  United  States.  Pediatric  exclusivity,  if  granted,  adds  six  months  to  existing
exclusivity periods and patent terms. This six-month exclusivity, which runs from the end of other exclusivity protection or patent term, may be granted
based on the voluntary completion of a pediatric trial in accordance with an FDA-issued “Written Request” for such a trial.

US Health Care Laws

Our  operations  may  be  subject  to  federal  and  state  health  care  laws  and  regulations  including,  without  limitation:  anti-kickback  statutes,  false  claims
statutes, patient data privacy and security laws, and health care professional payment transparency laws and regulations, many of which may become more
applicable if our product candidates are approved and we begin commercialization. If our operations are found to be in violation of any of these laws or
regulations, we may be subject to penalties, including significant administrative, civil and criminal penalties, damages, fines, disgorgement, imprisonment,
exclusion from participation in federal healthcare programs, and additional reporting obligations and oversight if we become subject to a corporate integrity
agreement  or  other  agreement  to  resolve  allegations  of  non-compliance  with  these  laws,  as  well  as  contractual  damages,  reputational  harm,  diminished
profits and future earnings, and the curtailment or restructuring of our operations.

Reimbursement / Health Reform

Sales of pharmaceutical products depend in significant part on the availability of third-party reimbursement. Third-party payers include government health
programs  such  as  Medicare  and  Medicaid,  managed  care  providers,  private  health  insurers  and  other  organizations.  These  third-party  payers  are
increasingly  challenging  the  price  and  examining  the  cost-effectiveness  of  medical  products  and  services,  including  prescription  drugs.  In  addition,
significant uncertainty exists as to the reimbursement status of newly approved prescription drugs and other healthcare products. We may need to conduct
expensive pharmacoeconomic studies in order to demonstrate the cost-effectiveness of any of our products that is successfully developed and approved.
Our  product  candidates  may  not  be  considered  cost-effective.  It  is  time  consuming  and  expensive  to  seek  reimbursement  from  third-party  payers.
Reimbursement may not be available or sufficient to allow the sale of any of our products that is successfully developed and approved on a competitive and
profitable basis.

The Medicare Prescription Drug, Improvement, and Modernization Act of 2003 (MMA), established the Medicare Part D program to provide a voluntary
prescription drug benefit to Medicare beneficiaries. Under Part D, Medicare beneficiaries may enroll in prescription drug plans offered by private entities to
provide coverage of outpatient prescription drugs. Part D plans include both stand-alone prescription drug benefit plans and prescription drug coverage as a
supplement to Medicare Advantage plans. Unlike Medicare Parts A and B, Part D coverage is not standardized. Part D prescription drug plan sponsors are
not required to pay for all covered Part D drugs, and each Part D prescription drug plan can develop its own drug formulary that identifies which drugs it
will  cover  and  at  what  tier  or  level.  However,  Part  D  prescription  drug  formularies  must  include  drugs  within  each  therapeutic  category  and  class  of
covered Part D drugs, although not necessarily all of the drugs within each category or class. Any formulary used by a Part D prescription drug plan must
be developed and reviewed by a pharmacy and therapeutic committee.

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Government payment for some of the costs of prescription drugs may increase demand for any of our products that is successfully developed and approved.
However, any negotiated prices for our products covered by a Part D prescription drug plan will likely be lower than the prices we might otherwise obtain.
Moreover, although the MMA applies only to drug benefits for Medicare beneficiaries, private payers often follow Medicare coverage policy and payment
limitations  in  setting  their  own  payment  rates.  Accordingly,  any  reduction  in  payment  that  results  from  the  MMA  may  result  in  a  similar  reduction  in
payments from non-governmental payers.

We  expect  that  there  will  continue  to  be  a  number  of  federal  and  state  proposals  to  implement  governmental  pricing  controls  and  limit  the  growth  of
healthcare costs, including the cost of prescription drugs. Currently, Medicare is prohibited from negotiating directly with pharmaceutical companies for
drugs. However, the U.S. Congress may in the future consider legislation that would lift the ban on federal negotiations.

The American Recovery and Reinvestment Act of 2009 provides funding for the federal government to compare the effectiveness of different treatments
for the same illness. A plan for the research would be developed by the U.S. Department of Health and Human Services (DHHS), Agency for Healthcare
Research and Quality and the National Institutes of Health, and periodic reports on the status of the research and related expenditures would be made to the
U.S. Congress. Although the results of the comparative effectiveness studies are not intended to mandate coverage policies for public or private payers, it is
not clear whether research would have any effect on the sales of any of our products that are successfully developed and approved, if the product or the
condition that it is intended to treat becomes the subject of a study. It is also possible that comparative effectiveness research demonstrating benefits of a
competitor’s  product  could  adversely  affect  the  sales  of  any  of  our  products  that  is  successfully  developed  and  approved.  If  third-party  payers  do  not
consider our products to be cost-effective compared to other available therapies, they may not cover our products after approval as a benefit under their
plans or, if they do, the level of payment may not be sufficient to allow us to sell our products on a profitable basis.

The Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act of 2010 (collectively, ACA), has had a
significant impact on the health care industry. The ACA was enacted in an effort to expand coverage for the uninsured while at the same time containing
overall  healthcare  costs.  Among  other  things,  the  ACA  expanded  and  increased  industry  rebates  for  drugs  covered  under  Medicaid  programs  and  made
changes to the coverage requirements under the Medicare Part D program. However, there have been executive, judicial and Congressional challenges to
certain aspects of the ACA. For example, President Trump signed several Executive Orders and other directives designed to delay the implementation of
certain  provisions  of  the  ACA  or  otherwise  circumvent  some  of  the  requirements  for  health  insurance  mandated  by  the  ACA.  Concurrently,  Congress
considered legislation to repeal or repeal and replace all or part of the ACA. While Congress has not passed comprehensive repeal legislation, several bills
affecting the implementation of certain taxes under the ACA have been enacted. Legislation enacted in 2017 (H.R. 1, “An Act to provide for reconciliation
pursuant to titles II and V of the concurrent resolution on the budget for fiscal year 2018”), informally titled the Tax Cuts and Jobs Act of 2017 (Tax Act)
includes a provision repealing, effective January 1, 2019, the tax-based shared responsibility payment imposed by the ACA on certain individuals who fail
to  maintain  qualifying  health  coverage  for  all  or  part  of  a  year  that  is  commonly  referred  to  as  the  “individual  mandate.”  In  addition,  the  2020  federal
spending package permanently eliminated, effective January 1, 2020, the ACA-mandated “Cadillac” tax on high-cost employer-sponsored health coverage
and medical device tax and, effective January 1, 2021, also eliminated the health insurer tax. The Bipartisan Budget Act of 2018, or the BBA, among other
things, amended the ACA, effective January 1, 2019, to close the coverage gap in most Medicare drug plans, and also increases in 2019 the percentage that
a drug manufacturer must discount the cost of prescription drugs from 50 percent to 70 percent. On December 14, 2018, a Texas U.S. District Court Judge
ruled  that  ACA  is  unconstitutional  in  its  entirety  because  the  “individual  mandate”  was  repealed  by  Congress  as  part  of  the  Tax  Act.  Additionally,  on
December 18, 2019, the U.S. Court of Appeals for the 5th Circuit upheld the District Court ruling that the individual mandate was unconstitutional and
remanded the case back to the District Court to determine whether the remaining provisions of the ACA are invalid as well. The U.S. Supreme Court is
currently reviewing this case, The U.S. Supreme Court is currently reviewing this case, but it is unknown when a decision will be reached. Although the
U.S. Supreme Court has yet ruled on the constitutionality of the ACA, on January 28, 2021, President Biden issued an executive order to initiate a special
enrollment period from February 15, 2021 through May 15, 2021 for purposes of obtaining health insurance coverage through the ACA marketplace. The
executive  order  also  instructs  certain  governmental  agencies  to  review  and  reconsider  their  existing  policies  and  rules  that  limit  access  to  healthcare,
including  among  others,  reexamining  Medicaid  demonstration  projects  and  waiver  programs  that  include  work  requirements,  and  policies  that  create
unnecessary barriers to obtaining access to health insurance coverage through Medicaid or the ACA. It is unclear how the Supreme Court ruling, other such
litigation, and the healthcare reform measures of the Biden administration will impact ACA.

If not preempted by the ACA, several states and local jurisdictions require pharmaceutical manufacturers to report expenses relating to the marketing and
promotion of pharmaceutical products and to report gifts and payments to individual physicians in the states. Other states prohibit providing various other
marketing related activities. Still other states require the posting of

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information relating to clinical studies and their outcomes. In addition, some states, such as California, Nevada and Massachusetts, require pharmaceutical
manufacturers  to  implement  compliance  programs  or  marketing  codes.  In  addition,  certain  states  and  local  jurisdictions  require  registration  of
pharmaceutical sales representatives. Currently, several additional states are considering similar proposals. Compliance with these laws is difficult and time
consuming, and companies that do not comply with these state laws face civil penalties.

There  has  also  been  increasing  legislative  and  enforcement  interest  in  the  United  States  with  respect  to  drug  pricing  practices,  including  several  recent
Congressional inquiries and proposed and enacted federal and state legislation designed to, among other things, increase drug pricing transparency, reduce
the  cost  of  drugs  under  Medicare,  review  relationships  between  pricing  and  manufacturer  patient  assistance  programs,  and  reform  government  program
drug  reimbursement  methodologies.  At  the  federal  level,  the  Trump  administration  used  several  means  to  propose  or  implement  drug  pricing  reform,
including through federal budget proposals, executive orders and policy initiatives. For example, on July 24, 2020 and September 13, 2020, the Trump
administration announced several executive orders related to prescription drug pricing that attempt to implement several of the administration’s proposals.
The FDA also released a final rule, effective November 30, 2020, implementing a portion of the importation executive order providing guidance for states
to build and submit importation plans for drugs from Canada. 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 Biden administration from January 1, 2022 to January 1, 2023 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  pending
review by the Biden administration until March 22, 2021. On November 20, 2020, CMS issued an interim final rule implementing President Trump’s Most
Favored  Nation  executive  order,  which  would  tie  Medicare  Part  B  payments  for  certain  physician-administered  drugs  to  the  lowest  price  paid  in  other
economically  advanced  countries,  effective  January  1,  2021.  On  December  28,  2020,  the  United  States  District  Court  in  Northern  California  issued  a
nationwide preliminary injunction against implementation of the interim final rule. However, it is unclear whether the Biden administration will work to
reverse these measures or pursue similar policy initiatives. At the state level, legislatures have increasingly passed legislation and implemented 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. Such reform efforts are likely to continue the pressure on pharmaceutical pricing, especially under the Medicare program, and may also
increase our regulatory burdens and operating costs.

In some foreign countries, the proposed pricing for a drug must be approved before it may be lawfully marketed. The requirements governing drug pricing
vary widely from country to country. For example, the EU provides options for its member states to restrict the range of medicinal products for which their
respective national health insurance systems provide reimbursement and to control the prices of medicinal products for human use. A member state may
approve a specific price for the medicinal product or it may instead adopt a system of direct or indirect controls on the profitability of the company placing
the medicinal product on the market. 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 for which we receive marketing approval. Historically, the
price structures for products launched in the EU do not follow those of the United States and tend to be significantly lower.

Europe / Rest of World Government Regulation

In  addition  to  regulations  in  the  United  States,  we  and  our  strategic  alliance  partners  will  be  subject  to  a  variety  of  regulations  in  other  jurisdictions
governing, among other things, clinical trials and any commercial sales and distribution of our products.

Whether or not we or our collaborators obtain FDA approval for a product, we must obtain the requisite approvals from regulatory authorities in foreign
countries prior to the commencement of clinical trials or marketing of the product in those countries. Certain countries outside of the United States have a
similar process that requires the submission of a clinical trial application prior to the commencement of human clinical trials. In the EU, for example, a
clinical trial application (CTA), must be submitted to each country’s national health authority and an independent ethics committee, much like the FDA and
IRB,  respectively.  Once  the  CTA  is  approved  in  accordance  with  a  country’s  requirements,  the  particular  clinical  trial  may  proceed.  Under  the  new
Regulation on Clinical Trials, which is expected to take effect in 2020, there will be a centralized application procedure where one national authority takes
the lead in reviewing the application and the other national authorities have only a limited involvement. Any substantial changes to the trial protocol or
other information submitted with the clinical trial applications must be notified to or approved by the relevant competent authorities and ethics committees.

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The requirements and process governing the conduct of clinical trials, product licensing, pricing and reimbursement vary from country to country. In all
cases, the clinical trials are conducted in accordance with GCP and the applicable regulatory requirements and the ethical principles that have their origin in
the Declaration of Helsinki.

To  obtain  regulatory  approval  of  an  investigational  drug  or  biological  product  under  EU  regulatory  systems,  we  or  our  strategic  alliance  partners  must
submit a marketing authorization application. The application used to file the NDA or a Biologics License Application in the United States is similar to the
application dossier (eCTD) required in the EU.

For other countries outside of the EU, such as countries in Eastern Europe, Latin America or Asia, the requirements governing the conduct of clinical trials,
product licensing, pricing and reimbursement vary from country to country. In all cases, again, the clinical trials are conducted in accordance with GCP and
the applicable regulatory requirements and the ethical principles that have their origin in the Declaration of Helsinki.

If we or our strategic alliance partners fail to comply with applicable foreign regulatory requirements, we may be subject to, among other things, fines,
suspension or withdrawal of regulatory approvals, product recalls, seizure of products, operating restrictions and criminal prosecution.

EU Review and Approval Process
In  the  EU,  there  are  two  main  routes  for  authorizing  the  marketing  of  medicines,  a  centralized  route  and  a  national  route.  The  centralized  procedure
is compulsory for certain types of medicinal products which are produced by biotechnology processes, advanced therapy medicinal products and for those
which are designated as orphan medicinal products. Besides the products falling under the mandatory scope, the centralized procedure is also optional for
medicinal products that constitute a significant therapeutic, scientific or technical innovation i.e. new active substances or other medicinal products that
constitute a significant therapeutic, scientific or technical innovation, that contain an active substance not authorized in the European Union before May 20,
2004 or for which a centralized procedure would be in the interest of patients.

Under  the  centralized  authorization  procedure,  pharmaceutical  companies  submit  a  single  marketing-authorization  application  to  the  EMA.  EMA’s
Committee  for  Medicinal  Products  for  Human  Use  (CHMP)  carries  out  a  scientific  assessment  of  the  application  and  makes  a  recommendation  to  the
European Commission whether the medicine should be marketed or not. If authorization is granted by the European Commission, the centralized marketing
authorization is valid in all EU Member States as well as in the European Economic Area (EEA) countries Iceland, Liechtenstein and Norway.

Additionally, medicines that belong to at least one of the below categories may be granted a conditional market authorization (CMA).

A CMA may be granted if: (1) the CHMP finds that the benefit-risk balance of the product is positive, (2) it is likely that the applicant will be able to
provide  comprehensive  data,  (3)  the  unmet  medical  needs  will  be  fulfilled,  and  (4)  the  benefit  to  public  health  of  the  medicinal  product’s  immediate
availability on the market outweighs the risks due to need for further data.

CMAs are valid for one year and can be renewed annually. The CMA holder will be required to complete specific obligations (to complete ongoing or new
studies,  and  in  some  cases  additional  activities)  with  a  view  to  providing  comprehensive  data  confirming  that  the  benefit-risk  balance  is  positive.  Once
comprehensive data on the product have been obtained, the CMA may be converted into a full marketing authorization (not subject to specific obligations).
Initially, this is valid for five years, but can be renewed for unlimited validity.

Orphan Designation in the EU

In order to qualify for Orphan Designation, a medicine must meet the following criteria:

•
•

•

it must be intended for the treatment, prevention or diagnosis of a disease that is life-threatening or chronically debilitating;
the prevalence of the condition in the EU must not be more than 5 in 10,000 or it must be unlikely that marketing of the medicine would
generate sufficient returns to justify the investment needed for its development; and
no satisfactory method of diagnosis, prevention or treatment of the condition concerned can be authorized, or, if such a method exists, the
medicine must be of significant benefit to those affected by the condition.

EMA  is  responsible  for  reviewing  applications  from  sponsors  for  orphan  designation.  The  EMA’s  Committee  for  Orphan  Medicinal  Products  (COMP),
through its network of experts, examines applications for Orphan Designation and issues an

25

opinion  to  EMA.  The  evaluation  process  takes  approximately  of  90  days  from  validation.  Once  EMA  receives  COMP’s  opinion,  EMA  sends  it  to  the
European Commission, which is responsible for granting the Orphan Designation.

At the time a sponsor of a marketing application files for marketing authorization for a medicine that has received Orphan Designation, the sponsor must
also submit a report on the maintenance of the Orphan Designation in parallel. EMA uses this report to determine whether the medicine can maintain its
status  as  an  orphan  medicine  and  benefit  from  the  extended  market  exclusivity  applicable  to  orphan  products.  Market  exclusivity  is  linked  to  the
maintenance of the Orphan Designation when the medicine receives a marketing authorization for the indication concerned.

If it is determined that a medicine still meets the criteria for Orphan Designation at the time of marketing approval, that medicine may benefit from a period
of ten years market exclusivity in the EU. This incentive is intended to protect orphan medicines from market competition with similar medicines with
similar indications once they are approved, and fundamentally to encourage the development of medicines for rare diseases.

The applicant is obliged to submit an annual report to the EMA every year after their medicine has been granted orphan designation. The annual report
needs provide information on the status of the development of the medicine, such as a review of ongoing clinical studies, a description of the investigation
plan for the coming year and any anticipated or current problems in the process, difficulties in testing and potential changes that may have an impact on the
medicine’s orphan designation.

The  European  Commission  is  responsible  for  granting  market  exclusivity  for  orphan  medicines.  Market  exclusivity  is  linked  to  each  specific  Orphan
Designation for which a marketing authorization has been granted.

The period of market exclusivity is extended by two years for medicines that also have complied with an agreed pediatric investigation plan (PIP). Each
orphan designation for a product linked to a separate orphan condition is eligible for a two-year extension if this is accounted for in the PIP. The extension
is granted by the European Commission based on the positive compliance check from the Pediatric Committee and opinion from the CHMP.

Brexit and the Regulatory Framework in the United Kingdom

On  June  23,  2016,  the  electorate  in  the  United  Kingdom,  or  UK,  voted  in  favor  of  leaving  the  EU,  commonly  referred  to  as  “Brexit”  and  the  United
Kingdom officially withdrew from the EU on January 31, 2020. The  United  Kingdom  and  the  EU  are  currently  in  a  transition  period  during  which  the
United Kingdom and the EU are negotiating additional arrangements, including their future trading arrangement. The United Kingdom has stated that it
wants the transition period to expire, and the future trading terms to be agreed, by December 31, 2020.

Since  the  regulatory  framework  for  pharmaceutical  products  in  the  United  Kingdom  covering  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,
immediately following Brexit, it is expected that the United Kingdom’s regulatory regime will remain aligned with EU regulations. It remains to be seen
how,  if  at  all,  Brexit  will  impact  regulatory  requirements  for  product  candidates  and  products  in  the  United  Kingdom.  In  the  longer  term,  Brexit  could
materially impact the future regulatory regime which applies to products and the approval of product candidates in the United Kingdom.

Environmental, Health and Safety Regulations

We  are  subject  to  various  environmental,  health  and  safety  regulations,  including  those  governing  laboratory  procedures  and  the  handling,  use,  storage,
treatment and disposal of hazardous substances. From time to time, and in the future, our operations may involve the use of hazardous materials.

Employees and Human Capital Resources

As of December 31, 2020, we had 54 full-time employees. Of these employees, 39 employees are engaged in research and development activities and 15
employees  are  engaged  in  finance,  legal,  human  resources,  facilities  and  general  management.  We  have  no  collective  bargaining  agreements  with  our
employees and we have not experienced any work stoppages. We consider our relations with our employees to be good.

We expect to continue to add additional employees in 2021 with a focus on expanding our expertise and bandwidth in clinical and preclinical research and
development.  We  continually  evaluate  our  business  needs  and  opportunities  and  balance  in  house  expertise  and  capacity  with  external  expertise  and
capacity. Currently, we rely on third-party contract manufacturers.

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Our Culture. The success of our human capital management investments is evidenced by our low employee turnover, a number which is regularly reviewed
by our Board of Directors as part of their oversight of our human capital strategy.

Employee Engagement, Talent Development & Benefits. We believe that our future success largely depends upon our continued ability to attract and retain
highly  skilled  employees.  We  provide  our  employees  with  competitive  salaries  and  bonuses,  opportunities  for  equity  ownership,  development  programs
that enable continued learning and growth and a robust employment package that promotes well-being across all aspects of their lives, including health
care,  retirement  planning  and  paid  time  off.  As  part  of  our  promotion  and  retention  efforts,  we  also  invest  in  ongoing  leadership  development  through
programs as well as offer tuition reimbursement.

Diversity & Inclusion. Much of our success is rooted in the diversity of our teams and our commitment to inclusion. We value diversity at all levels and
continue to focus on extending our diversity and inclusion initiatives across our entire workforce. We believe that our business benefits from the different
perspectives a diverse workforce brings, and we pride ourselves on having a strong, inclusive and positive culture based on our shared mission and values

Corporate Information

We were incorporated in the State of Delaware in April 2000. Our corporate headquarters are located at 2505 Meridian Parkway, Suite 100, Durham, North
Carolina 27713 in a facility we lease encompassing approximately 24,862 square feet of office space. The leases for this facility expire in July 2026. We
separately lease laboratory space in Durham, North Carolina, encompassing a total of approximately 7,925 square feet. The lease for this laboratory space
in Durham expires in July 2026. Through our subsidiary, Oncoceutics, Inc., we lease month to month approximately 489 square feet of combined office
space in New York, New York and Philadelphia, Pennsylvania.

Our corporate website address is www.chimerix.com. Our filings with the Securities and Exchange Commission are available free of charge through our
website  as  soon  as  reasonably  practicable  after  being  electronically  filed  with  or  furnished  to  the  SEC.  The  information  contained  on,  or  that  can  be
accessed  through,  our  website  is  not  part  of  this  Annual  Report,  and  the  inclusion  of  our  website  address  in  this  Annual  Report  is  an  inactive  textual
reference only.

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ITEM 1A.        RISK FACTORS

Except  for  the  historical  information  contained  herein  or  incorporated  by  reference,  this  Annual  Report  and  the  information  incorporated  by  reference
contains  forward-looking  statements  that  involve  risks  and  uncertainties.  These  statements  include  projections  about  our  research,  development  and
commercialization  efforts,  our  accounting  and  finances,  plans  and  objectives  for  the  future,  future  operating  and  economic  performance  and  other
statements regarding future performance. These statements are not guarantees of future performance or events. Our actual results may differ materially
from those discussed here. Factors that could cause or contribute to differences in our actual results include those discussed in the following section, as
well  as  those  discussed  in  Part  II,  Item  7  entitled  “Management’s  Discussion  and  Analysis  of  Financial  Condition  and  Results  of  Operations”  and
elsewhere throughout this Annual Report and in any other documents incorporated by reference into this Annual Report. You should consider carefully the
following risk factors, together with all of the other information included or incorporated in this Annual Report. Each of these risk factors, either alone or
taken together, could adversely affect our business, operating results and financial condition, as well as adversely affect the value of an investment in our
common stock. There may be additional risks that we do not presently know of or that we currently believe are immaterial which could also impair our
business and financial position.

An investment in shares of our common stock involves a high degree of risk. You should carefully consider the following information about these risks,
together with the other information appearing elsewhere in this Annual Report, before deciding to invest in our common stock. The occurrence of any of the
following  risks  could  have  a  material  adverse  effect  on  our  business,  financial  condition,  results  of  operations  and  future  growth  prospects.  In  these
circumstances, the market price of our common stock could decline, and you may lose all or part of your investment.

Risks Related to Our Financial Condition and Need For Additional Capital

We have incurred significant losses since our inception. We anticipate that we will continue to incur significant losses for the foreseeable future, and
we may never achieve or maintain profitability.

We are a biopharmaceutical company focused primarily on developing brincidofovir (BCV) for the treatment of smallpox, ONC201 for the treatment of
recurrent H3 K27M-mutant glioma and dociparstat (DSTAT) for the treatment of acute myeloid leukemia (AML) and the treatment of acute lung injury
(ALI) in COVID-19 patients. We have incurred significant net losses in each year since our inception, including net losses of $43.5 million, $112.6 million
and $69.5 million for the twelve months ended December 31, 2020, 2019 and 2018, respectively. As of December 31, 2020, we had an accumulated deficit
of approximately $712.4 million.

To date, we have financed our operations primarily through the sale of equity securities and, to a lesser extent, through government funding, licensing fees
and debt. We have devoted most of our financial resources to research and development, including our preclinical development activities and clinical trials.
We have not completed development of any product candidates. We may continue to incur losses and negative cash flows for the foreseeable future. The
size of any loss will depend, in part, on the rate of future expenditures and our ability to generate revenues. In particular, we expect to incur substantial
expenses as we seek to:

•

•

continue  development  and  manufacturing  activities  of  imipridones,  including  ONC201  for  the  treatment  of  recurrent  H3  K27M-mutant
glioma, and other potential indications;
continue development and manufacturing activities of DSTAT for the treatment of AML, the treatment of ALI in COVID-19 patients, and
other potential indications;
continue the development of BCV for the treatment of smallpox as a medical countermeasure;
obtain regulatory approvals for BCV, ONC201 and DSTAT;
scale-up manufacturing capabilities to commercialize BCV and DSTAT in the event we receive regulatory approval;
identify and in-license additional product candidates to expand our research and development pipeline;

•
•
•
•
• maintain, expand and protect our intellectual property portfolio; and
•

continue our internal research and development efforts and seek to discover additional product candidates.

To  become  and  remain  profitable,  we  must  succeed  in  developing  and  eventually  commercializing  products  with  significant  market  potential.  This  will
require us to be successful in a range of challenging activities, including acquiring or discovering product candidates, completing preclinical testing and
clinical  trials  of  our  product  candidates,  obtaining  regulatory  approval  for  these  product  candidates,  and  manufacturing,  marketing  and  selling  those
products for which we may obtain regulatory approval. We are only in the preliminary stages of some of these activities.

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To date, we have not obtained regulatory approval for any product candidate, and none of our product candidates have been commercialized. We may never
succeed in developing or commercializing any product candidate. If we do not successfully develop or commercialize any product candidate, or if revenues
from any products that do receive regulatory approvals are insufficient, we will not achieve profitability and our business may fail. Even if we successfully
obtain  regulatory  approval  to  market  a  product  candidate  in  the  United  States,  our  revenues  are  also  dependent  upon  the  size  of  markets  outside  of  the
United States, as well as our ability to obtain market approval and achieve commercial success outside of the United States.

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 depress the value of our company and could impair our ability to raise capital, expand our business, diversify our product offerings or
continue our operations. A decline in the value of our company could cause you to lose all or part of your investment.

Our  ability  to  generate  future  revenues  from  product  sales  is  uncertain  and  depends  upon  our  ability  to  successfully  develop,  obtain  regulatory
approval for, and commercialize product candidates.

Our  ability  to  generate  revenue  and  achieve  profitability  depends  on  our  ability,  alone  or  with  collaborators,  to  successfully  complete  the  development,
obtain  the  necessary  regulatory  approvals  and  commercialize  product  candidates.  We  may  not  generate  revenues  from  product  sales  for  the  foreseeable
future. Our ability to generate future revenues from product sales depends heavily on our success in:

•

•

•
•

obtaining  favorable  results  for  and  advancing  development  of  imipridones,  including  ONC201  for  the  treatment  of  recurrent  H3  K27M-
mutant glioma, and other potential indications;
obtaining favorable results for and advancing the development of DSTAT for the treatment of AML and ALI, and BCV for the treatment of
smallpox;
obtaining United States and foreign regulatory approval(s) for ONC201, DSTAT and BCV;
generating, licensing or otherwise acquiring a pipeline of product candidates which progress to clinical development, regulatory approval, and
commercialization.

Conducting  preclinical  testing  and  clinical  trials  is  a  time-consuming,  expensive  and  uncertain  process  that  takes  years  to  complete,  and  we  may  never
generate the necessary data required to obtain regulatory approval and achieve product sales. Our anticipated development costs would likely increase if we
do not obtain favorable results or if development of any product candidate is delayed. In particular, we would likely incur higher costs than we currently
anticipate if development of any product candidate is delayed because we are required by the FDA or foreign regulatory authorities to perform studies or
trials in addition to those that we currently anticipate, or we decide to conduct additional studies or trials for strategic reasons.

Because of the numerous risks and uncertainties associated with pharmaceutical product development, we are unable to predict with certainty the timing or
amount of any increase in our anticipated development costs that will result should any additional trials be necessary.

In  addition,  any  product  candidate,  if  approved,  may  not  achieve  commercial  success.  Our  commercial  revenues,  if  any,  will  be  derived  from  sales  of
products that we may not be commercially available for a number of years, if at all. Even if any product candidate is approved for commercial sale, we
anticipate incurring significant costs in connection with commercialization. As a result, we cannot assure you that we will be able to generate revenues
from sales of any approved product candidate, or that we will achieve or maintain profitability even if we do generate sales.

If we fail to obtain additional financing, we could be forced to delay, reduce or eliminate our product development programs, seek corporate partners
for  the  development  of  our  product  development  programs  or  relinquish  or  license  on  unfavorable  terms,  our  rights  to  technologies  or  product
candidates.

Developing pharmaceutical products, including conducting preclinical studies and clinical trials, is a time-consuming, expensive and uncertain process that
takes years to complete. We believe that our existing capital available to fund operations will enable us to fund our current operating expenses and capital
requirements  for  at  least  the  next  twelve  months.  Changing  circumstances  beyond  our  control  may  cause  us  to  consume  capital  more  rapidly  than  we
currently anticipate, and our clinical trials may encounter technical, enrollment or other difficulties that could increase our development costs more than we
expected, or because the FDA or foreign regulatory authorities require us to perform studies or trials in addition to those that we currently anticipate.

In July 2019, we entered into a License and Development Agreement with Cantex in which we acquired an exclusive worldwide license to develop and
commercialize DSTAT. We are currently enrolling a Phase 2/3 study of DSTAT in ALI for patients with COVID-19 and plan to initiate a Phase 3 trial in
AML in early 2021.

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In  January  2021,  we  acquired  Oncoceutics,  Inc.  (Oncoceutics),  a  privately-held,  clinical-stage  biotechnology  company  developing  imipridones,  a  novel
potential  class  of  compounds.  Oncoceutics’  lead  product  candidate,  ONC201,  selectively  induced  cell  death  in  multiple  cancer  types  in  clinical  trials.
ONC201 is currently being evaluated in multiple clinical studies including in a registrational program for recurrent H3 K27M-mutant glioma.

We are also pursuing additional external opportunities to build our pipeline of product candidates, and we may need to raise additional funds if we identify
additional  product  candidates,  which  we  may  obtain  through  one  or  more  equity  offerings,  debt  financings,  government  or  other  third-party  funding,
strategic alliances and licensing or collaboration arrangements.

Securing  additional  financing  may  divert  our  management  from  our  day-to-day  activities,  which  may  adversely  affect  our  ability  to  develop  and
commercialize  our  most  advanced  clinical  compounds,  or  any  other  product  candidate.  In  addition,  we  cannot  guarantee  that  future  financing  will  be
available in sufficient amounts or on terms acceptable to us, if at all. If we are unable to raise additional capital when required or on acceptable terms, we
may be required to:

•

•

•

significantly  delay,  scale  back  or  discontinue  the  development  or  commercialization  of  BCV,  ONC201,  DSTAT,  or  any  other  product
candidate;
seek corporate partners for BCV, ONC201, DSTAT, or any other product candidate 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  technologies  or  product  candidates  that  we  otherwise  would  seek  to  develop  or
commercialize ourselves.

If  we  are  unable  to  raise  additional  capital  in  sufficient  amounts  or  on  terms  acceptable  to  us,  we  will  be  prevented  from  pursuing  development  and
commercialization  efforts,  which  will  have  a  material  adverse  effect  on  our  business,  operating  results  and  prospects  and  on  our  ability  to  develop  our
product candidates.

We are evaluating external assets to build our pipeline of product candidates and there can be no assurance that we will be successful in identifying or
completing a transaction for a candidate, that any such transaction will result in additional value for our stockholders or that the process will not have
an adverse impact on our business.

In  early  2019,  we  initiated  a  review  of  external  assets  that  could  be  added  to  our  pipeline  of  product  candidates.  In  July  2019,  in  connection  with  this
process,  we  entered  into  a  License  and  Development  Agreement  with  Cantex  Pharmaceuticals,  Inc.  (Cantex)  pursuant  to  which  we  acquired  exclusive
worldwide rights to develop and commercialize DSTAT for any and all uses. In January 2021, we acquired Oncoceutics, a privately-held, clinical-stage
biotechnology company developing imipridones, including ONC201. In connection with these transactions, we are responsible for, and bear the future costs
of,  development  and  commercialization  of  the  acquired  compounds.  These  costs  will  be  substantial,  and  we  may  require  additional  capital  in  order  to
pursue  the  development  and  commercialization  of  these  compounds  as  planned.  Moreover,  the  anticipated  benefits  of  these  transactions  may  never  be
realized due to the various risks and uncertainties associated with drug development detailed elsewhere in the following risk factors.

In addition to DSTAT and ONC201, we may in-license or acquire additional assets, engage in a merger or acquisition transaction, issue additional shares of
our common stock, or engage in other potential actions designed to maximize stockholder value. Our continuing review of external assets may not result in
the  identification  or  consummation  of  any  transaction.  The  process  of  reviewing  external  opportunities  may  be  time  consuming  and  disruptive  to  our
business operations and, if we are unable to effectively manage the process, our business, financial condition and results of operations could be adversely
affected. We could incur substantial expenses associated with identifying, evaluating, negotiating, and consummating potential transactions. There can be
no assurance that any potential additional transaction, if consummated, will provide greater value to our stockholders than that reflected in the current price
of our common stock. In addition, once any potential additional transaction is consummated, we are likely to incur substantial costs associated with future
development and testing of any new product candidate, which may require us to raise additional capital.

 Risks Related to Clinical Development and Regulatory Approval

We face risks related to the coronavirus (COVID-19) outbreak, which could significantly disrupt our preclinical studies and clinical trials.

The  duration  and  the  geographic  impact  of  the  business  disruption  and  related  financial  impact  resulting  from  the  coronavirus  cannot  be  reasonably
estimated at this time and our business could be adversely impacted by the effects. We are currently conducting clinical trials of our product candidates in
the  United  States.  We  rely  on  independent  clinical  investigators,  contract  research  organizations  and  other  third-party  service  providers  to  assist  us  in
managing, monitoring and otherwise carrying out

30

our  non-clinical  studies  and  clinical  trials,  and  the  outbreak  may  affect  their  ability  to  devote  sufficient  time  and  resources  to  our  programs.  Similarly,
clinical  site  initiation  and  patient  enrollment  may  be  delayed  due  to  concerns  for  patient  safety  and  prioritization  of  healthcare  resources  toward  the
COVID-19 pandemic. We also rely on third party suppliers and contract manufacturers to produce the drug product we utilize in our clinical trials, and the
outbreak may cause delays in delivery and increases in the cost of active pharmaceutical ingredients (APIs) and drug product.  As a result, the expected
timeline for data readouts of our non-clinical studies and clinical trials and certain regulatory filings may be negatively impacted, and our APIs and drug
product  may  become  more  expensive  to  obtain.  The  COVID-19  pandemic  is  also  causing  disruption  of  global  financial  markets  which,  if  sustained  or
recurrent, could make it more difficult for us to access capital. The ultimate impact of the COVID-19 pandemic is highly uncertain and subject to change,
and may adversely affect our business, healthcare systems and the global economy as a whole.

Our product candidates are still under clinical development and may not obtain regulatory approval or be successfully commercialized.

We have not marketed, distributed or sold any products. Our product candidates are ONC201, which we are developing for the treatment of recurrent H3
K27M-mutant  glioma,  DSTAT,  which  we  are  developing  for  the  treatment  of  AML,  the  treatment  of  ALI  in  COVID-19  patients,  and  other  potential
indications and BCV, which we continue to develop for the treatment of smallpox as a medical countermeasure. We are in late stage clinical development
for both ONC201 and DSTAT. The new drug application (NDA) for BCV as a medical countermeasure for the treatment of smallpox is currently under
FDA review and has a PDUFA date of April 7, 2021.

There is no guarantee that our current or future clinical trials will be approved by regulators, and no guarantee that they will be completed or, if completed,
will be successful, or if successful, will result in an approval for the sale of any of our product candidates. The success of each of DSTAT and BCV will
depend on several factors, including the following:

•
•

•
•
•
•
•
•
•

generating positive safety and efficacy data from our clinical trials of DSTAT and ONC201;
acceptance of data from our studies of oral BCV in animal models, including analyses necessary to bridge to a recommended human dose, by
the FDA and foreign regulatory bodies;
receipt of marketing approvals from the FDA and corresponding regulatory authorities outside the United States;
establishing manufacturing capabilities necessary for a registration trial and commercialization of DSTAT;
establishing commercial manufacturing capabilities for BCV;
acceptance of the product, if approved for marketing;
effectively competing with other therapies;
a continued acceptable safety profile of the product following approval; and
obtaining, maintaining, enforcing and defending intellectual property rights and claims.

If  we  do  not  achieve  one  or  more  of  these  factors  in  a  timely  manner  or  at  all,  we  could  experience  significant  delays  or  an  inability  to  successfully
commercialize BCV, ONC201, and DSTAT, which would materially harm our business.

We have never obtained regulatory approval for a drug and we may be unable to obtain, or may be delayed in obtaining, regulatory approval for most
advanced clinical candidates: BCV, ONC201 and DSTAT.

We have never obtained regulatory approval for a drug. It is possible that the FDA and/or foreign health authorities, such as the EMA, may refuse to accept
our  NDA  (or  corresponding  foreign  application)  for  substantive  review  or  may  conclude  after  review  of  our  data  that  our  application  is  insufficient  to
obtain regulatory approval of any of our lead clinical candidates.

Through our continuing development contract with BARDA, we completed the second rabbitpox efficacy study as well as a pivotal efficacy study in the
mouse model (ectromelia virus). We believe that efficacy data from these models could support the approval of BCV for the treatment of smallpox. The
NDA for BCV is currently under review by FDA and has a PDUFA date of April 7, 2021.

In July 2019, we entered into a license agreement with Cantex where we acquired an exclusive license to global development and commercialization rights
to DSTAT. We are currently enrolling a Phase 2/3 study of DSTAT in ALI for patients with COVID-19 and a Phase 3 trial in AML.

In  January  2021,  we  acquired  Oncoceutics,  a  privately-held,  clinical-stage  biotechnology  company  developing  imipridones,  a  novel  potential  class  of
compounds. Oncoceutics’ lead product candidate, ONC201, is currently being evaluated in multiple clinical studies including in a registrational program
for recurrent H3 K27M-mutant glioma.

31

We have not yet reached agreement with the FDA or foreign regulators regarding the adequacy of these planned studies, for any of our most advanced
clinical  candidates,  with  respect  to  a  potential  approval  for  marketing.  We  may  be  required  to  conduct  additional  clinical,  nonclinical  or  manufacturing
validation studies and submit those data before reconsideration of our application occurs. Depending on the extent of these or any other required studies,
approval of any NDA or application that we submit may be delayed by several years, or may require us to expend more resources than we have available. It
is  also  possible  that  additional  studies,  if  performed  and  completed,  may  not  be  considered  sufficient  by  the  FDA  and/or  foreign  health  authorities  to
approve our NDA or foreign application.

Any delay in obtaining, or an inability to obtain, regulatory approvals could prevent us from generating revenues and achieving and sustaining profitability.
If  any  of  these  outcomes  occur,  we  may  be  forced  to  abandon  our  development  efforts  for  ONC201,  DSTAT  and  BCV,  which  would  have  a  material
adverse effect on our business and could potentially cause us to cease operations.

We depend on the successful completion of clinical trials for our product candidates, including BCV, ONC201 and DSTAT. The positive clinical results
obtained for our product candidates in prior clinical studies may not be repeated in future clinical studies.

Before obtaining regulatory approval for the sale of our product candidates, including BCV, ONC201 and DSTAT, we must conduct extensive clinical trials
to demonstrate the safety and efficacy of our product candidates. 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 of our clinical trials can occur at any stage of testing. The outcome of preclinical testing
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, and many companies that have believed their
product candidates performed satisfactorily in preclinical studies and clinical trials have nonetheless failed to obtain marketing approval for their products.

We may experience a number of unforeseen events during, or as a result of, clinical trials or animal efficacy studies for our product candidates, that could
adversely affect the completion of our clinical trials, including:

•

•

•

regulators or institutional review boards may not authorize us or our investigators to commence a clinical trial or conduct a clinical trial at a
prospective trial site;
clinical trials of our product candidates may produce negative or inconclusive results, and we may decide, or regulators may require us, to
conduct additional clinical trials or abandon product development programs;
animal efficacy studies of our product candidates may produce negative or inconclusive results, and we may decide, or regulators may require
us to conduct additional animal efficacy studies or abandon development programs;

• we might be required to change one of our clinical research organizations (CROs) during ongoing clinical programs;
•

the number of subjects required for clinical trials of our product candidates may be larger than we anticipate, enrollment in these clinical trials
may be insufficient or slower than we anticipate, or subjects 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;

•

• we may have to suspend or terminate clinical trials of our product candidates for various reasons, including a finding that the subjects are

•

being exposed to unacceptable health risks, or other factors such as the impact of the ongoing COVID-19 pandemic;
regulators or institutional review boards may require that we or our investigators suspend or terminate clinical research for various reasons,
including noncompliance with regulatory requirements;
•
the cost of clinical trials of our product candidates may be greater than we anticipate;
• we may encounter agency or judicial enforcement actions which impact our clinical trials;
•

the  supply  or  quality  of  our  product  candidates  or  other  materials  necessary  to  conduct  clinical  trials  of  our  product  candidates  may  be
insufficient or inadequate; or
our product candidates may have undesirable side effects or other unexpected characteristics, causing us or our investigators to suspend or
terminate the trials.

•

We do not know whether any clinical trials we may conduct will demonstrate adequate efficacy and safety to result in regulatory approval to market our
most advanced product candidates, including BCV, ONC201 and DSTAT. If later stage clinical trials do not produce favorable results, our ability to obtain
regulatory approval for any of our product candidates may be adversely impacted.

32

Delays in clinical trials are common and have many causes, and any delay could result in increased costs to us and jeopardize or delay our ability to
obtain regulatory approval and commence product sales.

Clinical  testing  is  expensive,  difficult  to  design  and  implement,  can  take  many  years  to  complete,  and  is  uncertain  as  to  outcome.  We  may  experience
delays  in  clinical  trials  at  any  stage  of  development  and  testing  of  our  product  candidates.  Our  planned  clinical  trials  may  not  begin  on  time,  have  an
effective design, enroll a sufficient number of subjects, or be completed on schedule, if at all.

Events which may result in a delay or unsuccessful completion of clinical trials, including our currently planned or future clinical trials for any of BCV,
ONC201, or DSTAT, include:

•
•
•
•
•
•
•
•
•
•
•
•
•
•

inability to raise funding necessary to initiate or continue a trial;
delays in obtaining, or failure to obtain, regulatory approval of Investigational New Drug applications or to commence a trial;
delays in reaching agreement with the FDA and foreign health authorities on final trial design;
imposition of a clinical hold following an inspection of our clinical trial operations or trial sites by the FDA or other regulatory authorities;
delays caused by disagreements with existing CROs and/or clinical trial sites;
delays in reaching agreement on acceptable terms with prospective CROs and clinical trial sites;
delays in obtaining, or failure to obtain, required IRB or ethics committee (EC) approvals covering each site;
delays in recruiting suitable patients to participate in a trial;
delays in having subjects complete participation in a trial or return for post-treatment follow-up;
delays caused by subjects dropping out of a trial due to side effects or otherwise;
clinical sites declining to participate or dropping out of a trial to the detriment of enrollment;
agency or judicial enforcement actions against us;
time required to add new clinical sites; and
delays by our contract manufacturers to produce and deliver sufficient supply of clinical trial materials.

Many  of  the  above  factors  may  be  caused  or  exacerbated  by  the  impact  of  the  ongoing  COVID-19  pandemic.  If  initiation  or  completion  of  any  of  our
clinical  trials  for  our  product  candidates,  are  delayed  for  any  of  the  above  reasons,  our  development  costs  may  increase,  our  approval  process  could  be
delayed, any periods during which we may have the exclusive right to commercialize our product candidates may be reduced and our competitors may have
more time to bring products to market before we do. Any of these events could impair our ability to generate revenues from product sales and impair our
ability to generate regulatory and commercialization milestones and royalties, all of which could have a material adverse effect on our business.

Our product candidates may cause adverse effects or have other properties that could delay or prevent their regulatory approval or limit the scope of
any approved label or market acceptance.

Adverse events (AEs) caused by our product candidates could cause us, other reviewing entities, clinical study sites or regulatory authorities to interrupt,
delay  or  halt  clinical  studies  and  could  result  in  the  denial  of  regulatory  approval.  For  example,  subjects  enrolled  in  our  clinical  trials  for  BCV  have
experienced gastrointestinal AEs and liver-related safety laboratory value changes. In addition, BCV is related to the approved drug cidofovir, a compound
which  has  been  shown  to  result  in  significant  renal  toxicity  and  impairment  following  use.  As  a  second  example,  subjects  enrolled  in  clinical  trials  for
DSTAT have experienced febrile neutropenia and liver enzyme elevations. If an unacceptable frequency and/or severity of AEs are reported in our clinical
trials for our product candidates, our ability to obtain regulatory approval for product candidates may be negatively impacted.

If any of our approved products cause serious or unexpected side effects prior to or after receiving market approval, a number of potentially significant
negative consequences could result, including:

•

regulatory authorities may approve the product only with a risk evaluation and mitigation strategy (REMS), potentially with restrictions on
distribution and other elements to assure safe use (ETASU);
regulatory authorities may withdraw their approval of the product or impose restrictions on its distribution in a form of a modified REMS;
regulatory authorities may require the addition of labeling statements, such as warnings or contraindications;

•
•
• we may be required to change the way the product is administered or to conduct additional clinical studies;
• we could be sued and held liable for harm caused to patients; and
•

our reputation may suffer.

33

Any of these events could prevent us from achieving or maintaining market acceptance of the affected product candidate and could substantially increase
the costs of commercializing our product candidates.

After the completion of our clinical trials, we cannot predict whether or when we will obtain regulatory approval to commercialize any of our product
candidates and we cannot, therefore, predict the timing of any future revenue from BCV, ONC201 or DSTAT.

We  cannot  commercialize  our  product  candidates,  including  BCV,  ONC201  and  DSTAT,  until  the  appropriate  regulatory  authorities  have  reviewed  and
approved the product candidate. The regulatory agencies may not complete their review processes in a timely manner, or we may not be able to obtain
regulatory approval for any of our product candidates. Additional delays in the United States may result if any of our product candidates is brought before
an FDA advisory committee, which could recommend restrictions on approval or recommend non-approval of the product candidate. In the EU context, an
Oral Explanation during MAA review could extend approval timelines and result in a Negative Opinion. A re-examination procedure is available in the EU
whereby a Negative Opinion could be over-turned and become a Positive Opinion. New rapporteurs would be selected for the product. In addition, we may
experience  delays  or  rejections  based  upon  additional  government  regulation  from  future  legislation  or  administrative  action,  or  changes  in  regulatory
agency policy during the period of product development, clinical studies and the review process. As a result, we cannot predict when, if at all, we will
receive any future revenue from commercialization of any of our product candidates.

The FDA has granted rare pediatric disease designation to ONC201 for the treatment of glioblastoma. However, a marketing application for ONC201,
if approved, may not meet the eligibility criteria for a priority review voucher.

The FDA has granted rare pediatric disease designation to ONC201 for treatment of H3 K27M-mutant glioma. Designation of a drug as a drug for a rare
pediatric disease does not guarantee that an NDA for such drug will meet the eligibility criteria for a rare pediatric disease priority review voucher at the
time the application is approved. Under the Federal Food, Drug, and Cosmetic Act (FDCA), we will need to request a rare pediatric disease priority review
voucher in our original NDA for ONC201. The FDA may determine that an NDA for ONC201, if approved, does not meet the eligibility criteria for a
priority review voucher, including for the following reasons:

•
•
•
•

•

treatment of H3 K27M-mutant glioma no longer meets the definition of a rare pediatric disease;
the NDA contains an active ingredient (including any ester or salt of the active ingredient) that has been previously approved in an NDA;
the NDA is not deemed eligible for priority review;
the  NDA  does  not  rely  on  clinical  data  derived  from  studies  examining  a  pediatric  population  and  dosages  of  the  drug  intended  for  that
population (that is, if the NDA does not contain sufficient clinical data to allow for adequate labeling for use by the full range of affected
pediatric patients); or
the NDA is approved for a different adult indication than the rare pediatric disease for which ONC201 is designated.

The authority for the FDA to award rare pediatric disease priority review vouchers for drugs that have received rare pediatric disease designation prior to
September 30, 2024 currently expires on September 30, 2026, although it is possible the FDA’s authority to award rare pediatric disease priority review
vouchers will be further extended through federal lawmaking. Absent any such extension, if the NDA for ONC201 is not approved prior to September 30,
2026  for  any  reason,  regardless  of  whether  it  meets  the  criteria  for  a  rare  pediatric  disease  priority  review  voucher,  it  will  not  be  eligible  for  a  priority
review voucher.

Even if we obtain regulatory approval for any of our product candidates, including BCV, ONC201 and DSTAT, we will still face extensive regulatory
requirements and our products may face future development and regulatory difficulties.

Even if we obtain regulatory approval, the granting authority may still impose significant restrictions on the indicated uses, distribution or marketing of our
product  candidates,  including  ONC201,  DSTAT  and  BCV,  or  impose  ongoing  requirements  for  potentially  costly  post-approval  studies  or  post-market
surveillance. For example, the labeling ultimately approved for our product candidates, will likely include restrictions on use due to the specific patient
population and manner of use in which the drug was evaluated and the safety and efficacy data obtained in those evaluations. In addition, the distribution of
ONC201, DSTAT or BCV may be tightly controlled through a REMS with ETASU, which are required medical interventions or other actions healthcare
professionals  need  to  execute  prior  to  prescribing  or  dispensing  the  drug  to  the  patient.  Some  actions  may  also  be  required  in  order  for  the  patient  to
continue on treatment. For example, the label for BCV may be required to include a boxed warning, or “black box,” regarding BCV being carcinogenic,
teratogenic and impairing fertility in animal studies. The BCV labeling may also include warnings pertaining to gastrointestinal AEs or liver-related safety
laboratory value changes or black boxes related to the mortality disadvantage with extended dosing observed in the SUPPRESS trial.

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Our product candidates will also be subject to additional ongoing regulatory requirements governing the labeling, packaging, storage, distribution, safety
surveillance,  advertising,  promotion,  record-keeping  and  reporting  of  safety  and  other  post-market  information.  In  the  United  States,  the  holder  of  an
approved NDA is obligated to monitor and report AEs and any failure of a product to meet the specifications in the NDA. The holder of an approved NDA
must  also  submit  new  or  supplemental  applications  and  obtain  FDA  approval  for  certain  changes  to  the  approved  product,  product  labeling  or
manufacturing process. If a REMS is required, the NDA holder may be required to monitor and evaluate those in the healthcare system who are responsible
for implementing ETASU measures. Advertising and promotional materials must comply with FDA rules and are subject to FDA review, in addition to
other potentially applicable federal and state laws. Moreover, EU and member countries impose strict restrictions on the promotion and marketing of drug
products. The off-label promotion of medicinal products is prohibited in the U.S., EU and in other territories. The promotion of medicinal products that are
not subject to a marketing authorization is also prohibited in the EU. Violations of the rules governing the promotion of medicinal products in the EU and
in other territories could be penalized by administrative measures, fines and imprisonment.

In  addition,  manufacturers  of  drug  products  and  their  facilities  are  subject  to  payment  of  user  fees  and  continual  review  and  periodic  inspections  by
regulatory authorities for compliance with Current Good Manufacturing Practices (cGMP), and adherence to commitments made in the application. If we,
or  a  regulatory  agency,  discover  previously  unknown  problems  with  a  product,  such  as  quality  issues  or  AEs  of  unanticipated  severity  or  frequency,  or
problems with the facility where the product is manufactured, a regulatory agency may impose restrictions relative to that product or the manufacturing
facility, including requiring recall or withdrawal of the product from the market or suspension of manufacturing.

If we fail to comply with applicable regulatory requirements following approval of any product candidates, a regulatory agency may:

•
•
•
•
•
•
•

issue an untitled or warning letter asserting that we are in violation of the law;
seek an injunction or impose civil or criminal penalties or monetary fines;
suspend or withdraw regulatory approval;
suspend any ongoing clinical trials;
refuse to approve a pending application or supplements to an application submitted by us;
recall and/or seize product; or
refuse to allow us to enter into supply contracts, including government contracts.

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 our product candidates and inhibit our
ability to generate revenues.

Obtaining  FDA  approval  for  any  one  of  our  products  in  the  United  States  does  not  mean  we  will  ever  obtain  approval  for  or  commercialize  BCV,
ONC201, DSTAT, or any other products outside of the United States, nor does approval of any of our products outside the United States mean we will
ever obtain approval for or commercialize any other products inside the United States, all of which could limit our ability to realize their full market
potential.

In  order  to  market  any  products  outside  of  the  United  States,  we  must  establish  and  comply  with  numerous  and  varying  regulatory  requirements  on  a
country-by-country  basis  regarding  safety  and  efficacy.  Approval  by  the  FDA  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
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 products in those countries. 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 any 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 products will be unrealized.

Conversely,  approval  by  regulatory  authorities  outside  the  United  States,  such  as  the  European  Commission,  does  not  ensure  approval  by  the  FDA.
Moreover, clinical trials conducted outside the United States may not be accepted by the FDA.

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Coverage and adequate reimbursement may not be available for our current or any future product candidates, which could make it difficult for us to
sell profitably, if approved.

Market  acceptance  and  sales  of  any  product  candidates  that  we  commercialize,  if  approved,  will  depend  in  part  on  the  extent  to  which  coverage  and
adequate reimbursement will be available from third-party payers, including government health administration authorities, managed care organizations and
private health insurers. Third-party payers decide which therapies they will pay for and establish reimbursement levels. Third-party payers in the United
States often rely upon Medicare coverage policy and payment limitations in setting their own coverage and reimbursement policies. However, decisions
regarding the extent of coverage and amount of reimbursement to be provided for any product candidates that we develop will be made on a payer-by-payer
basis. One payer’s determination to provide coverage for a drug does not assure that other payers will also provide coverage and adequate reimbursement
for  the  drug.  Additionally,  a  third-party  payer’s  decision  to  provide  coverage  for  a  therapy  does  not  imply  that  an  adequate  reimbursement  rate  will  be
approved.  Third-party  payers  are  increasingly  challenging  the  price,  examining  the  medical  necessity  and  reviewing  the  cost-effectiveness  of  medical
products,  therapies  and  services,  in  addition  to  questioning  their  safety  and  efficacy.  We  cannot  be  sure  that  coverage  and  reimbursement  in  the  United
States  or  elsewhere  will  be  available  for  any  product  that  we  may  develop,  and  any  reimbursement  that  may  become  available  may  be  decreased  or
eliminated in the future.

Our  relationships  with  investigators,  health  care  professionals,  consultants,  third-party  payers,  and  customers  may  be  subject  to  applicable  anti-
kickback,  fraud  and  abuse  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 and others play a primary role in the recommendation and prescribing of any products for which we obtain marketing approval. Our
current business operations and future arrangements with investigators, healthcare professionals, consultants, third-party payers and customers may expose
us to broadly applicable fraud and abuse and other healthcare laws and regulations. These laws may constrain the business or financial arrangements and
relationships through which we research, market, sell and distribute our products for which we obtain marketing approval. Restrictions under applicable
federal and state healthcare laws and regulations, include, but are not limited to, the following:

•

•

•

the federal healthcare anti-kickback statute which prohibits, among other things, persons or entities from knowingly and willfully soliciting,
offering, receiving or paying remuneration (including any kickback, bribe or rebate), directly or indirectly, overtly or covertly, in cash or in
kind, to induce or reward either the referral of an individual for, or the purchase, lease, order or recommendation of, any good, facility, item or
service, for which payment may be made, in whole or in part, under federal healthcare programs such as Medicare and Medicaid;
the  federal  civil  and  criminal  false  claims  laws,  including  the  Federal  Civil  False  Claims  Act  (False  Claims  Act)  which  permit  private
individuals to bring a civil action on behalf of the federal government to enforce certain of these laws thought civil whistleblower or qui tam
actions and the Federal Civil Monetary Penalties Act, which prohibit, among other things, individuals or entities from knowingly presenting,
or causing to be presented, to the federal government, claims for payment or approval that are false or fraudulent or from knowingly making a
false statement to improperly avoid, decrease or conceal an obligation to pay money to the federal government;
the federal Health Insurance Portability and Accountability Act of 1996 (HIPAA) which, among other things, imposes criminal liability for
knowingly and willfully executing, or attempting to execute, a scheme to defraud any healthcare benefit program or to obtain, by means of
false or fraudulent pretenses, representations, or promises, any of the money or property owned by, or under the custody or control of, any
healthcare benefit program, regardless of the payer (e.g., public or private) and knowingly or willfully falsifying, concealing or covering up
by any trick or device a material fact or making any materially false statement in connection with the delivery of, or payment for, healthcare
benefits, items or services relating to healthcare matters;

• HIPAA,  as  amended  by  the  Health  Information  Technology  for  Economic  and  Clinical  Health  Act  (HITECH),  and  their  implementing
regulations  impose  certain  obligations,  including  mandatory  contractual  terms,  with  respect  to  safeguarding  the  privacy,  security  and
transmission  of  individually  identifiable  health  information  without  appropriate  authorization  by  entities  subject  to  the  rule,  such  as  health
plans, healthcare clearinghouses and certain healthcare providers, and their business associates as well as their covered subcontractors;
the  General  Data  Protection  Regulation  (GDPR),  which  impose  obligations  on  companies  in  relation  to  the  handling  of  personal  data  of
individuals within the EU, along with related national legislation;

•

• mandated physician payments reporting laws and/or requirements throughout global jurisdictions, including EU member states, in which we

•
•

conduct research and development and/or other business activities;
the FDCA which prohibits, among other things, the adulteration or misbranding of drugs and devices;
the federal transparency law, enacted as part of the Patient Protection and Affordable Care Act, as amended by the Health Care and Education
Reconciliation Act of 2010 (collectively, the ACA), and its implementing regulations, which requires manufacturers of drugs, devices,
biologicals and medical supplies to report to the Centers for Medicare & Medicaid Services (CMS) information related to payments and other
transfers of value made to

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•

physicians (defined to include doctors, dentists, optometrists, podiatrists and chiropractors) and teaching hospitals, as well as ownership and
investment interests held by physicians and their immediate family members. Beginning in 2022, applicable manufacturers also will be
required to report such information regarding its payments and other transfers of value to physician assistants, nurse practitioners, clinical
nurse specialists, anesthesiologist assistants, certified registered nurse anesthetists and certified nurse midwives during the previous year; and
analogous  state  laws  and  regulations,  including:  state  anti-kickback  and  false  claims  laws,  which  may  apply  to  our  business  practices,
including  but  not  limited  to,  research,  distribution,  sales  and  marketing  arrangements  and  claims  involving  healthcare  items  or  services
reimbursed by state governmental and non-governmental third-party payers, including private insurers; state laws that require pharmaceutical
companies to comply with the pharmaceutical industry’s voluntary compliance guidelines and the relevant compliance guidance promulgated
by the federal government; state and local laws that require the registration of pharmaceutical sales representatives; state laws and regulations
that require manufacturers to file reports relating to pricing and marketing information, which requires tracking gifts and other remuneration
and items of value provided to healthcare professionals and entities; and state laws governing the privacy and security of health information,
many of which differ from each other in significant ways and often are not preempted by HIPAA.

Efforts to ensure that our business arrangements with third parties comply with applicable healthcare laws and regulations involve substantial costs. It is
possible that governmental authorities will conclude that our business practices do not comply with current or future statutes, regulations, agency guidance
or case law involving applicable fraud and abuse or other healthcare laws and regulations. If our operations are found to be in violation of any of these or
any  other  health  regulatory  laws  or  any  other  governmental  regulations  that  may  apply  to  us,  we  may  be  subject  to  significant  civil,  criminal  and
administrative penalties, damages, fines, disgorgement, imprisonment, additional reporting obligations and oversight if we become subject to a corporate
integrity agreement or other agreement to resolve allegations of non-compliance with these laws, exclusion from government funded healthcare programs,
such  as  Medicare  and  Medicaid,  and  the  curtailment  or  restructuring  of  our  operations,  any  of  which  could  adversely  affect  our  ability  to  operate  our
business  and  our  financial  results.  Any  action  against  us  for  violation  of  these  laws,  even  if  we  successfully  defend  against  it,  could  cause  us  to  incur
significant  legal  expenses  and/or  divert  our  management’s  attention  from  the  operation  of  our  business.  If  any  of  the  physicians  or  other  providers  or
entities with whom we expect to do business are found to be not in compliance with applicable laws, they also may be subject to significant criminal, civil
or administrative sanctions, including, but not limited to, exclusions from government funded healthcare programs, which could also materially affect our
business.

Recently  enacted  and  future  legislation  may  increase  the  difficulty  and  cost  for  us  to  obtain  marketing  approval  of  and  commercialize  our  product
candidates and affect the prices we 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  prevent  or  delay  marketing  approval  of  our  product  candidates,  restrict  or  regulate  post-approval  activities  and  affect  our
ability to profitably sell any products for which we obtain marketing approval.

For example, in March 2010, the ACA was enacted to broaden access to health insurance, reduce or constrain the growth of healthcare spending, enhance
remedies against fraud and abuse, add new transparency requirements for health care and health insurance industries, impose new taxes and fees on the
health industry and impose additional health policy reforms. The ACA revises the definition of “average manufacturer price” for reporting purposes, which
could increase the amount of Medicaid drug rebates to states. Further, the law imposes a significant annual fee on companies that manufacture or import
branded prescription drug products. New provisions affecting compliance have also been enacted, which may affect our business practices with health care
practitioners.  However,  there  have  been  executive,  judicial  and  Congressional  challenges  to  certain  aspects  of  the  ACA.  For  example,  President  Trump
signed Executive Orders and other directives designed to delay the implementation of certain provisions of the ACA or otherwise circumvent some of the
requirements for health insurance mandated by the ACA. Concurrently, Congress considered legislation that would repeal or repeal and replace all or part
of the ACA. While Congress has not passed comprehensive repeal legislation, several bills affecting the implementation of certain taxes under the ACA
have been enacted. The Tax Cuts and Jobs Act of 2017 (Tax Act) repealed, effective January 1, 2019, the tax-based shared responsibility payment imposed
by the ACA on certain individuals who fail to maintain qualifying health coverage for all or part of a year that is commonly referred to as the “individual
mandate.” In addition, the 2020 federal spending package permanently eliminated, effective January 1, 2020, the ACA-mandated “Cadillac” tax on high-
cost  employer-sponsored  health  coverage  and  medical  device  tax  and,  effective  January  1,  2021,  also  eliminates  the  health  insurer  tax.  The  Bipartisan
Budget Act of 2018, or the BBA, among other things, amended the ACA, effective January 1, 2019, to close the coverage gap in most Medicare drug plans,
and also increased in the percentage that a drug manufacturer must discount the cost of prescription drugs from 50 percent to 70 percent. On December 14,
2018, a Texas U.S. District Court Judge ruled that ACA is unconstitutional in its entirety because the “individual mandate” was repealed by Congress as
part of the Tax Act. Additionally, on December 18, 2019, the U.S. Court of Appeals for the 5th Circuit upheld the District Court ruling that the

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individual mandate was unconstitutional and remanded the case back to the District Court to determine whether the remaining provisions of the ACA are
invalid as well. The U.S. Supreme Court is currently reviewing this case, but it is unknown when a decision will be reached. Although the U.S. Supreme
Court has yet ruled on the constitutionality of the ACA, on January 28, 2021, President Biden issued an executive order to initiate a special enrollment
period from February 15, 2021 through May 15, 2021 for purposes of obtaining health insurance coverage through the ACA marketplace. The executive
order also instructs certain governmental agencies to review and reconsider their existing policies and rules that limit access to healthcare, including among
others, reexamining Medicaid demonstration projects and waiver programs that include work requirements, and policies that create unnecessary barriers to
obtaining  access  to  health  insurance  coverage  through  Medicaid  or  the  ACA.  It  is  unclear  how  the  Supreme  Court  ruling,  other  such  litigation,  and  the
healthcare reform measures of the Biden administration will impact ACA and our business.

Legislative  and  regulatory  proposals  have  also  been  made  to  expand  post-approval  requirements  and  restrict  sales  and  promotional  activities  for
pharmaceutical products.

Additionally,  there  has  been  increasing  legislative  and  enforcement  interest  in  the  United  States  with  respect  to  specialty  drug  pricing  practices.
Specifically, there have been several recent U.S. Congressional inquiries and proposed and enacted federal and state legislation designed to, among other
things,  bring  more  transparency  to  drug  pricing,  reduce  the  cost  of  prescription  drugs  under  Medicare,  review  the  relationship  between  pricing  and
manufacturer patient programs, and reform government program reimbursement methodologies for drugs. At the federal level, the Trump administration
used several means to propose or implement drug pricing reform, including through federal budget proposals, executive orders and policy initiatives. For
example, on July 24, 2020 and September 13, 2020, the Trump administration announced several executive orders related to prescription drug pricing that
attempt to implement several of the administration’s proposals. The FDA also released a final rule, effective November 30, 2020, implementing a portion of
the  importation  executive  order  providing  guidance  for  states  to  build  and  submit  importation  plans  for  drugs  from  Canada.  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
Biden administration from January 1, 2022 to January 1, 2023 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 pending review by the Biden administration until March 22, 2021. On November 20, 2020, CMS issued
an  interim  final  rule  implementing  President  Trump’s  Most  Favored  Nation  executive  order,  which  would  tie  Medicare  Part  B  payments  for  certain
physician-administered drugs to the lowest price paid in other economically advanced countries, effective January 1, 2021. On December 28, 2020, the
United States District Court in Northern California issued a nationwide preliminary injunction against implementation of the interim final rule. However, it
is unclear whether the Biden administration will work to reverse these measures or pursue similar policy initiatives. At the state level, legislatures have
increasingly passed legislation and implemented 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.  Such  reform  efforts  are  likely  to  continue  the  pressure  on  pharmaceutical
pricing, especially under the Medicare program, and may also increase our regulatory burdens and operating costs.

Healthcare  reform  measures  that  may  be  adopted  in  the  future  may  result  in  more  rigorous  coverage  criteria,  lower  reimbursement,  and  additional
downward  pressure  on  the  price  that  we  receive  for  any  future  approved  product.  It  is  possible  that  additional  governmental  action  may  be  taken  in
response to the COVID-19 pandemic. We cannot predict what healthcare reform initiatives may be adopted in the future.

Risks Related to Our Reliance on Third Parties

We  rely  on  third-party  manufacturers  to  produce  our  preclinical  and  clinical  drug  supplies,  and  we  intend  to  rely  on  third  parties  to  produce
commercial supplies of any approved product candidates.

We do not own or operate, and we do not expect to own or operate, facilities for product manufacturing, storage and distribution, or testing with respect to
our  product  candidates,  including  ONC201,  DSTAT  or  BCV.  In  the  past,  we  have  relied  on  third-party  manufacturers  for  supply  of  our  preclinical  and
clinical drug supplies. We expect that in the future we will continue to rely on such manufacturers for drug supply that will be used in clinical trials and for
commercialization of any of our product candidates that receive regulatory approval.

In  July  2019,  we  were  assigned  Cantex’s  rights  under  a  supply  agreement  with  Scientific  Protein  Laboratories  LLC  (SPL)  pursuant  to  which  SPL  will
exclusively produce DSTAT for us through October 2040. We have agreed that SPL will be our exclusive provider of DSTAT bulk drug substance during
the term of the agreement.

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Our reliance on third-party manufacturers entails risks, including:

inability to meet our product specifications and quality requirements consistently;
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delay or inability to procure or expand sufficient manufacturing capacity;
•
• manufacturing and product quality issues related to scale-up of manufacturing;
costs and validation of new equipment and facilities required for scale-up;
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failure to comply with cGMP and similar foreign standards;
•
inability to negotiate manufacturing agreements with third parties under commercially reasonable terms;
•
termination or nonrenewal of manufacturing agreements with third parties in a manner or at a time that is costly or damaging to us;
•
reliance on a limited number of sources, and in some cases, single sources for product components, such that if we are unable to secure a
•
sufficient  supply  of  these  product  components,  we  will  be  unable  to  manufacture  and  sell  our  product  candidates  in  a  timely  fashion,  in
sufficient quantities or under acceptable terms;
lack of qualified backup suppliers for those components that are currently purchased from a sole or single source supplier;
operations of our third-party manufacturers or suppliers could be disrupted by conditions unrelated to our business or operations, including
the bankruptcy of the manufacturer or supplier, or other factors such as the impact of the ongoing COVID-19 pandemic;
carrier disruptions or increased costs that are beyond our control; and
failure to deliver our products under specified storage conditions and in a timely manner.

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Any  of  these  events  could  lead  to  clinical  study  delays,  failure  to  obtain  regulatory  approval  or  impact  our  ability  to  successfully  commercialize  our
products. Some of these events could be the basis for FDA or equivalent foreign regulator action, including injunction, recall, seizure, or total or partial
suspension of production. The severity of the coronavirus (COVID-19) pandemic could make access to our existing supply chain difficult or impossible
and could materially impact our business.

We  rely  on  limited  sources  of  supply  for  the  drug  components  for  each  of  our  product  candidates  including,  BCV,  ONC201  and  DSTAT,  and  any
disruption in the chain of supply for any of these product candidates may cause delays in their development and commercialization.

Manufacturing  of  drug  components  is  subject  to  certain  FDA  and  comparable  foreign  qualifications  with  respect  to  manufacturing  standards.  We  have
validated  the  BCV  drug  substance  manufacturing  process  at  our  selected  contractor  that  will  produce  the  commercial  supply  and  possible  procurement
supply of drug substance. We have selected our BCV commercial and possible procurement tablet and suspension manufacturers and have validated both
manufacturing processes. We are currently scaling up the tablet and suspension manufacturing process to meet forecasted procurement demand. There can
be no assurance that the manufacturing at commercial scale will be successful or will be completed in a timely fashion. If we are unable to successfully
scale up to meet commercial demands our business could be materially harmed.

We plan to validate the DSTAT drug substance and drug product processes prior to regulatory approval. It is our expectation that only one supplier of drug
substance and one supplier of drug product will be qualified as vendors for both DSTAT and BCV with the FDA. If supply from an approved vendor is
interrupted, there could be a significant disruption in commercial supply. An alternative vendor would need to be qualified through an NDA supplement
which could result in further delay. The FDA or other regulatory agencies outside of the United States may also require additional studies if a new drug
substance or drug product supplier is relied upon for commercial production.

These factors could cause the delay of clinical trials, regulatory submissions, required approvals or commercialization of DSTAT and BCV, and cause us to
incur additional costs. As an example, we source a significant number of materials used in the manufacture of our products from China; the impact of the
recent coronavirus outbreak could make access to our existing supply chain difficult or impossible and could materially harm our business. If our suppliers
fail to deliver the required commercial quantities of active pharmaceutical ingredient on a timely basis and at commercially reasonable prices, and we are
unable to secure one or more replacement suppliers capable of production at a substantially equivalent cost, our clinical trials for DSTAT and BCV may be
delayed, which could inhibit our ability to generate revenues.

Manufacturing issues may arise that could increase product and regulatory approval costs or delay commercialization of BCV, ONC201 and DSTAT.

We have validated processes for drug substance and drug product production for BCV.

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We plan to validate DSTAT drug substance and drug product processes prior to approval at our selected vendors. It is our expectation that only one supplier
of drug substance and one supplier of drug product will be qualified as vendors for DSTAT with the FDA.

As more batch data is generated post-validation for both the drug substance and drug products, and as additional stability data is collected, issues may arise
in our processes and stability programs which could require resolution in order to proceed with our planned clinical trials and obtain regulatory approval for
the  commercial  marketing  of  DSTAT  and  BCV.  In  the  future,  we  may  identify  significant  impurities,  which  could  result  in  increased  scrutiny  by  the
regulatory agencies, delays in clinical program and regulatory approval for DSTAT and BCV, increases in our operating expenses, or failure to obtain or
maintain approval for either DSTAT, BCV or both.

We depend on SymBio for developing and commercializing BCV for human diseases other than orthopoxviruses, including smallpox.

In 2019, we entered into a licensing arrangement with SymBio, whereby SymBio is responsible for the future development and commercialization of BCV.
Under this arrangement, SymBio is responsible for conducting preclinical studies and clinical trials, obtaining required regulatory approvals for BCV in
non-orthopox  indications  (e.g.  smallpox),  and  manufacturing  and  commercializing  BCV  in  those  indications.  Our  right  to  receive  milestone  payments
under the licensing agreement depends on the achievement of certain development, regulatory and commercial milestones by SymBio and our ability to
receive royalties under the agreement depends on SymBio's successful commercialization of BCV in the licensed indications.

The development and commercialization of the non-orthopox uses of BCV in humans and our ability to receive potential milestones and royalty payments
under the license agreement with SymBio, would be adversely affected if SymBio:

lacks or does not devote sufficient time and resource to the development and commercialization of BCV;
lacks or does not devote sufficient capital to fund the development and commercialization of BCV;
develops, either alone or with others, products that compete with BCV;
fails to gain the requisite regulatory approvals for BCV;
does not successfully commercialize BCV;
does not conduct its activities in a timely manner;
terminates its license with us;
does not effectively pursue and enforce intellectual property rights relating to BCV; or

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• merges with a third-party that wants to terminate the collaboration.

We have limited or no control over the occurrence of any of the foregoing. Furthermore, disagreements with SymBio could lead to litigation or arbitration,
which could be time-consuming and expensive. If any of these issues arise, it may delay the development and commercialization milestones and royalties
based on further development and sales of BCV.

We rely on third parties to conduct, supervise and monitor our clinical studies and related data, and if those third parties perform in an unsatisfactory
manner, it may harm our business.

We rely on CROs and clinical trial sites to ensure the proper and timely conduct of our clinical trials. While we have agreements governing their activities,
we  have  limited  influence  over  their  actual  performance.  We  have  relied  and  plan  to  continue  to  rely  upon  CROs  to  monitor  and  manage  data  for  our
ongoing  clinical  programs  for  our  product  candidates,  as  well  as  the  execution  of  nonclinical  studies.  We  control  only  certain  aspects  of  our  CROs’
activities. Nevertheless, we are responsible for ensuring that each of our studies is conducted in accordance with the applicable protocol, legal, regulatory
and scientific standards and our reliance on CROs does not relieve us of our regulatory responsibilities.

We and our CROs are required to comply with the FDA’s guidance for clinical trials conducted within the jurisdiction of the United States (or the foreign
regulatory  authority  equivalent  for  clinical  trials  conducted  outside  the  jurisdiction  of  the  United  States),  which  follows  the  International  Council  for
Harmonization Good Clinical Practice (ICH GCP), which are regulations and guidelines enforced by the FDA for all of our product candidates in clinical
development. The FDA enforces the ICH GCP through periodic inspections of trial sponsors, principal investigators and clinical trial sites. If we or our
CROs fail to comply with the ICH GCP, the clinical data generated in our clinical trials may be deemed unreliable and the FDA may require us to perform
additional clinical trials before approving our marketing applications.

Our CROs are not our employees, and we cannot control whether or not they devote sufficient time and resources to our ongoing clinical and nonclinical
programs.  These  CROs  may  also  have  relationships  with  other  commercial  entities,  including  our  competitors,  for  whom  they  may  also  be  conducting
clinical studies, or other drug development activities which could harm our competitive position. We face the risk of potential unauthorized disclosure or
misappropriation of our intellectual property

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by CROs, which may reduce our trade secret protection and allow our potential competitors to access and exploit our proprietary technology.

If our CROs do not successfully carry out their contractual duties or obligations, fail to meet expected deadlines, or if the quality or accuracy of the clinical
data they obtain is compromised due to the failure to adhere to our clinical protocols or regulatory requirements or for any other reasons, our clinical trials
may be extended, delayed or terminated, and we may not be able to obtain regulatory approval for, or successfully commercialize ONC201, DSTAT, BCV
or any other product candidates. Disagreements with our CROs over contractual issues, including performance, compliance or compensation could lead to
termination  of  CRO  agreements  and/or  delays  in  our  clinical  program  and  risks  to  the  accuracy  and  usability  of  clinical  data.  As  a  result,  our  financial
results and the commercial prospects for our product candidates that we develop would be harmed, our costs could increase, and our ability to generate
revenues could be delayed.

Risks Related to Commercialization of Our Product Candidates

The commercial success of BCV, ONC201, DSTAT and any other product candidates will depend upon the acceptance of these products by the medical
community, including physicians, patients, pharmacists, health care payers or government procurement agencies (e.g. BARDA).

If any of our product candidates receive marketing approval, they may nonetheless not gain sufficient market acceptance by physicians, patients, healthcare
payers and others in the medical community. If these products do not achieve an adequate level of market acceptance, we may not generate significant
product revenues and we may not become profitable. The degree of market acceptance of any of our product candidates will depend on a number of factors,
including:

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demonstration of clinical safety and efficacy in our clinical trials;
relative convenience, ease of administration and acceptance by physicians, patients, pharmacists and health care payers;
prevalence and severity of any AEs;
limitations  or  warnings  contained  in  the  FDA-approved  labeling  from  Regulatory  Authorities  such  as  the  FDA  and  EMA  for  the  relevant
product candidate;
availability, efficacy and safety of alternative treatments;
price and cost-effectiveness;
effectiveness of our or any future collaborators’ or competitor’s sales and marketing strategies;
ability to obtain hospital formulary approval;
ability to ensure availability for product through appropriate channels;
ability to maintain adequate inventory; and
ability to obtain and maintain sufficient third-party coverage and adequate reimbursement, which may vary from country to country.

Even if we obtain regulatory approval, the granting authority may still impose significant restrictions on the indicated uses, distribution or marketing of our
product  candidates,  including  ONC201,  DSTAT  and  BCV,  or  impose  ongoing  requirements  for  potentially  costly  post-approval  studies  or  post-market
surveillance. For example, the labeling ultimately approved for our product candidates, will likely include restrictions on use due to the specific patient
population and manner of use in which the drug was evaluated and the safety and efficacy data obtained in those evaluations. In addition, the distribution of
ONC201, DSTAT or BCV may be tightly controlled through a REMS with ETASU, which are required medical interventions or other actions healthcare
professionals  need  to  execute  prior  to  prescribing  or  dispensing  the  drug  to  the  patient.  Some  actions  may  also  be  required  in  order  for  the  patient  to
continue on treatment. For example, the label for BCV may be required to include a boxed warning, or “black box,” regarding BCV being carcinogenic,
teratogenic and impairing fertility in animal studies. The BCV labeling may also include warnings pertaining to gastrointestinal AEs or liver-related safety
laboratory value changes or black boxes related to the mortality disadvantage with extended dosing observed in the SUPPRESS trial.

If we are unable to establish sales and marketing capabilities or enter into agreements with third parties to market and sell our product candidates, we
may be unable to generate any revenue.

We  currently  do  not  have  an  organization  for  the  sales  and  distribution  of  pharmaceutical  products.  The  cost  of  establishing  and  maintaining  such  an
organization may exceed the cost-effectiveness of doing so. In order to market any products that may be approved we must establish our sales, marketing,
managerial and other non-technical capabilities or make arrangements with third parties to perform these services. We may enter into strategic partnerships
with third parties to commercialize our product candidates.

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Our  strategy  for  each  of  ONC201  and  DSTAT,  is  to  establish  a  specialty  sales  force  and/or  collaborate  with  third  parties  to  promote  the  product  to
healthcare professionals and third-party payers in the United States and elsewhere. We may elect to launch with a contract sales organization and utilize
accompanying commercial support services provided by a contract sales organization. Our future collaboration partners, if any, may not dedicate sufficient
resources to the commercialization of our product candidates or may otherwise fail in their commercialization due to factors beyond our control. If we are
unable  to  establish  effective  collaborations  to  enable  the  distribution  and  sale  of  our  product  candidates  to  healthcare  professionals  and  in  geographical
regions, including the United States, that are not covered by our own marketing and sales force, or if our potential future collaboration partners do not
successfully commercialize our product candidates, our ability to generate revenues from product sales, including sales of ONC201 and DSTAT, will be
adversely affected.

Establishing an internal or contract sales force involves many challenges, including:

recruiting and retaining talented people;
training employees that we recruit;
establishing compliance standards;
setting the appropriate system of incentives;

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ensuring that appropriate support functions are in place to support sales force organizational needs; and
integrating a new business unit into an existing corporate architecture.

If we are unable to establish our own sales force or negotiate a strategic partnership for the commercialization of our product candidates in any markets, we
may be forced to delay the potential commercialization of our product candidates in those markets, reduce the scope of our sales or marketing activities for
our product candidates in those markets or undertake the commercialization activities for BCV, ONC201 and DSTAT in those markets at our own expense.
If  we  elect  to  increase  our  expenditures  to  fund  commercialization  activities  ourselves,  we  will  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 will not be able to bring our product candidates to market or generate
product revenue. Limited or lack of funding will impede our ability to achieve successful commercialization.

If we are unable to establish adequate sales, marketing and distribution capabilities, whether independently or with third parties, we may not be able to
generate sufficient product revenue and may not become profitable. We will be competing with many companies that currently have extensive and well-
funded marketing and sales operations. Without an internal team or the support of a third party to perform marketing and sales functions, we may be unable
to compete successfully against these more established companies.

In addition, there are risks involved with both establishing our own sales and marketing capabilities and entering into arrangements with third parties to
perform  these  services.  For  example,  recruiting  and  training  a  sales  force  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  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 sales, marketing and market access personnel.

If  we  obtain  approval  to  commercialize  any  products  outside  of  the  United  States,  a  variety  of  risks  associated  with  international  operations  could
materially adversely affect our business.

If our product candidates are approved for commercialization, we may enter into agreements with third parties to market those product candidates outside
the United States. We expect that we will be subject to additional risks related to entering into international business relationships, including:

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different regulatory requirements for drug approvals in the EU and other foreign countries;
reduced protection for intellectual property rights;
unexpected changes in tariffs, trade barriers and regulatory and labor requirements;
economic weakness, including inflation, or political instability in particular foreign economies and markets;
compliance with tax, employment, immigration and labor laws for employees living or traveling abroad;
foreign taxes, including withholding of payroll taxes;
foreign  currency  fluctuations,  which  could  result  in  increased  operating  expenses  and  reduced  revenues,  and  other  obligations  incident  to
doing business in another country;
differing payer reimbursement regimes, governmental payers or patient self-pay systems and price controls;

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production shortages resulting from any events affecting raw material supply or manufacturing capabilities abroad;
regulatory risks associated with cross-border transportation of animal-sourced material;
business  interruptions  resulting  from  geopolitical  actions,  including  war  and  terrorism,  or  natural  disasters  and  other  events  outside  our
control including epidemics, pandemics, earthquakes, typhoons, floods and fires; and
regulatory and compliance risks that relate to maintaining accurate information and control over activities that may fall within the purview of
the  U.S.  Foreign  Corrupt  Practices  Act,  its  books  and  records  provisions  or  its  anti‑bribery  provisions,  or  similar  anti‑bribery  or
anti‑corruption laws and regulations.

We have limited experience in these areas. In addition, there are complex regulatory, tax, labor and other legal requirements imposed by both the EU and
many of the individual countries in Europe with which we will need to comply. Many U.S.-based biopharmaceutical companies have found the process of
marketing their own products outside the United States to be very challenging.

We face competition from other biotechnology and pharmaceutical companies and our operating results will suffer if we fail to compete effectively.

The biotechnology and pharmaceutical industries are intensely competitive. We have competitors both in the United States and internationally, including
major multinational pharmaceutical companies, biotechnology companies and universities and other research institutions.

Many  of  our  competitors  have  substantially  greater  financial,  technical,  commercial  and  other  resources,  such  as  larger  research  and  development  staff,
stronger intellectual property portfolios and experienced marketing and manufacturing organizations and established sales forces. Additional mergers and
acquisitions in the biotechnology and pharmaceutical industries may result in even more resources being concentrated in our competitors.

Competition may increase further as a result of advances in the commercial applicability of technologies and greater availability of capital for investment in
these industries. Our competitors may succeed in developing, acquiring or licensing, on an exclusive basis, drug products that are more effective or less
costly than BCV, ONC201 and DSTAT or any other drug candidate that we are currently developing or that we may develop.

We  will  face  competition  from  other  drugs  currently  approved  or  that  will  be  approved  in  the  future  for  the  same  indications.  Therefore,  our  ability  to
compete successfully will depend largely on our ability to:

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discover and develop medicines that are superior to other products in the market;
demonstrate through our clinical trials that our product candidates, including BCV, ONC201 and DSTAT, are differentiated from existing and
future therapies;
attract qualified scientific, product development and commercial personnel;
obtain and successfully defend and enforce patent and/or other proprietary protection for our medicines and technologies;
obtain required regulatory approvals;
successfully collaborate with pharmaceutical companies in the discovery, development and commercialization of new medicines;
deliver a competitive value proposition compared to established competition and/or competitors who will enter the market before or after any
of our product candidates, including BCV, ONC201 and DSTAT; and
negotiate competitive pricing and reimbursement with third-party payers.

The availability of our competitors’ products could affect the price we are able to charge, for any product candidate we develop. The inability to compete
with existing or subsequently introduced drug products would have a material adverse impact on our business, financial condition and prospects.

Established pharmaceutical companies may invest heavily to accelerate discovery and development of novel compounds or to in-license novel compounds
that  could  make  our  product  candidates  less  competitive.  In  addition,  any  new  product  that  competes  with  an  approved  product  must  demonstrate
compelling  advantages  in  efficacy,  convenience,  tolerability  and  safety  in  order  to  overcome  price  competition  and  to  be  commercially  successful.
Accordingly,  our  competitors  may  succeed  in  obtaining  patent  protection,  receiving  FDA  approval  or  discovering,  developing  and  commercializing
medicines before we do, which would have a material adverse impact on our business.

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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.

The  success  of  our  business  depends  primarily  upon  our  ability  to  identify,  develop  and  commercialize  product  candidates.  Because  we  have  limited
financial and managerial resources, we focus on research programs and product candidates for specific indications. As a result, we may forego or delay
pursuit of opportunities with other product candidates or other indications that later prove to have greater commercial potential.

Our research programs may initially show promise in identifying potential product candidates, yet fail to yield product candidates for clinical development
for a number of reasons, including:

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our research methodology or that of our collaboration partners may be unsuccessful in identifying potential product candidates;
our potential product candidates may be shown to have harmful side effects or may have other characteristics that may make the products
unmarketable or unlikely to receive marketing approval; and
our collaboration partners may change their development profiles for potential product candidates or abandon a therapeutic area.

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

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 advantageous for us to retain sole
development and commercialization rights.

Risks Related to Our Intellectual Property

If  we  are  unable  to  obtain  or  protect  intellectual  property  rights  related  to  our  products  and  product  candidates,  we  may  not  be  able  to  compete
effectively in our market.

We rely upon a combination of patents, trade secret protection and confidentiality agreements to protect the intellectual property related to our products and
product  candidates.  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 the products in the United States or in
other countries. If this were to occur, early generic competition could be expected against any product candidates we may develop. There is no assurance
that all of the potentially relevant prior art relating to our patents and patent applications has been found, which can invalidate a patent or prevent a patent
from issuing based on a pending patent application. Even if patents do successfully issue, third parties may challenge their validity, enforceability, scope or
ownership, which may result in such patents, or our rights to such patents, being narrowed or invalidated.

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 patent applications we hold or license with respect to any of our product candidates fails to issue or if their breadth or
strength  of  protection  is  threatened,  it  could  dissuade  companies  from  collaborating  with  us  to  develop,  and  threaten  our  ability  to  commercialize,  our
products.  We  cannot  offer  any  assurances  about  which,  if  any,  patents  will  issue  or  whether  any  issued  patents  will  be  found  not  invalid  and  not
unenforceable,  will  go  unthreatened  by  third  parties  or  will  adequately  protect  our  products  and  product  candidates.  Further,  if  we  encounter  delays  in
regulatory  approvals,  the  period  of  time  during  which  we  could  market  DSTAT  and  BCV  under  patent  protection  could  be  reduced.  Since  patent
applications in the United States and most other countries are confidential for a period of time after filing, and some remain so until issued, we cannot be
certain that we or our licensors were the first to file any patent application related to any of our product candidates. Furthermore, if third parties have filed
such patent applications, an interference proceeding in the United States can be provoked by a third party or instituted by us to determine who was the first
to invent any of the subject matter covered by the patent claims of our applications. An unfavorable outcome could require us to cease using the related
technology or to attempt to license it from the prevailing party, which may not be possible. In addition to the protection afforded by patents, we rely on
trade secret protection and confidentiality agreements to protect proprietary know-how that is not patentable, processes for which patents are difficult to
enforce  and  other  elements  of  our  drug  discovery  and  development  processes  that  involve  proprietary  know-how,  information  or  technology  that  is  not
covered by patents. Although we expect all of our employees to assign their inventions to us, and all of our employees, consultants, advisors and any third
parties who have access to our proprietary know-how, information or technology to enter into confidentiality agreements, we

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cannot  provide  any  assurances  that  all  such  agreements  have  been  duly  executed,  that  such  agreements  provide  adequate  protection  and  will  not  be
breached, that our trade secrets and other confidential proprietary information will not otherwise be disclosed or that competitors will not otherwise gain
access to our trade secrets or independently develop substantially equivalent information and techniques. If we are unable to prevent material disclosure of
the non-patented intellectual property related to our technologies to third parties, and there is no guarantee that we will have any such enforceable trade
secret protection, we may not be able to establish or maintain a competitive advantage in our market, which could materially adversely affect our business,
results of operations and financial condition.

Further, the laws of some foreign countries do not protect patents and other proprietary rights to the same extent or in the same manner as the laws of the
United States. As a result, we may encounter significant problems in protecting and defending our intellectual property abroad. We may also fail to pursue
or obtain patents and other intellectual property protection relating to our products and product candidates in all foreign countries.

Finally, certain of our activities and our licensors’ activities have been funded, and may in the future be funded, by the U.S. federal government. When new
technologies are developed with U.S. federal government funding, the government obtains certain rights in any resulting patents, including a nonexclusive
license authorizing the government to use the invention for non-commercial purposes. These rights may permit the government to disclose our confidential
information to third parties and to exercise “march-in” rights to use or allow third parties to use our patented technology. The government can exercise its
march-in rights if it determines that action is necessary because we fail 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, U.S.
government-funded inventions must be reported to the government, U.S. government funding must be disclosed in any resulting patent applications, and
our rights in such inventions may be subject to certain requirements to manufacture products in the United States.

Third-party claims of intellectual property infringement may prevent or delay our development and commercialization efforts or otherwise affect our
business.

Our commercial success depends in part on our avoiding infringement and other violations of the patents and proprietary rights of third parties. There is a
substantial amount of litigation, both within and outside the United States, involving patent and other intellectual property rights in the biotechnology and
pharmaceutical industries, including patent infringement lawsuits, interferences, oppositions and inter party reexamination proceedings before the United
States Patent and Trademark Office (U.S. PTO) and its foreign counterparts. Numerous U.S. and foreign issued patents and pending patent applications,
which  are  owned  by  third  parties,  exist  in  the  fields  in  which  we  and  our  collaborators  are  developing  product  candidates.  As  the  biotechnology  and
pharmaceutical industries expand and more patents are issued, and as we gain greater visibility and market exposure as a public company, the risk increases
that our product candidates or other business activities may be subject to claims of infringement of the patent and other proprietary rights of third parties.
Third parties may assert that we are employing their proprietary technology without authorization. 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  ONC201,  DSTAT,  BCV
and/or any other product candidates. Because patent applications can take many years to issue, there may be currently pending patent applications which
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. If any third-party patents were held by a court of competent jurisdiction to cover the manufacturing process
of any of our product candidates, any molecules formed during the manufacturing process or any final product itself, the holders of any such patents may
be able to block our ability to commercialize such product candidate unless we obtained a license under the applicable patents, or until such patents expire.

Similarly,  if  any  third-party  patent  were  held  by  a  court  of  competent  jurisdiction  to  cover  aspects  of  our  formulations,  processes  for  manufacture  or
methods of use, including combination therapy, the holders of any such patent may be able to block our ability to develop and commercialize the applicable
product candidate unless we obtained a license or until such patent expires. In either case, such a license may not be available on commercially reasonable
terms  or  at  all.  In  addition,  we  may  be  subject  to  claims  that  we  are  infringing  other  intellectual  property  rights,  such  as  trademarks  or  copyrights,  or
misappropriating  the  trade  secrets  of  others,  and  to  the  extent  that  our  employees,  consultants  or  contractors  use  intellectual  property  or  proprietary
information owned by others in their work for us, disputes may arise as to the rights in related or resulting know-how and inventions.

Parties  making  claims  against  us  may  obtain  injunctive  or  other  equitable  relief,  which  could  effectively  block  our  ability  to  further  develop  and
commercialize one or more of our product candidates. Defense of these claims, regardless of their merit, would involve substantial litigation expense and
would be a substantial diversion of employee resources from our business. In the event of a successful infringement or other intellectual property claim
against us, we may have to pay substantial damages, including treble damages and attorneys’ fees for willful infringement, obtain one or more licenses
from third parties, pay

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royalties or redesign our affected products, which may be impossible or require substantial time and monetary expenditure. We cannot predict whether any
such license would be available at all or whether it would be available on commercially reasonable terms. Furthermore, even in the absence of litigation,
we may need to obtain licenses from third parties to advance our research or allow commercialization of our product candidates, and we have done so from
time to time. We may fail to obtain any of these licenses at a reasonable cost or on reasonable terms, if at all. In that event, we would be unable to further
develop and commercialize one or more of our product candidates, which could harm our business significantly. We cannot provide any assurances that
third-party patents do not exist which might be enforced against our products or product candidates, resulting in either an injunction prohibiting our sales,
or, with respect to our sales, an obligation on our part to pay royalties and/or other forms of compensation to third parties.

We may be involved in lawsuits to protect or enforce our patents, the patents of our licensors and licensees or our other intellectual property rights,
which could be expensive, time consuming and unsuccessful.

Competitors may infringe or otherwise violate our patents, the patents of our licensors or our other intellectual property rights. To counter infringement or
unauthorized use, we may be required to file legal claims, which can be expensive and time-consuming. In addition, in an infringement proceeding, a court
may decide that a patent of ours or our licensors is not valid or is unenforceable, or may refuse to stop the other party from using the technology at issue on
the grounds that our patents do not cover the technology in question. An adverse result in any litigation or defense proceedings could put one or more of
our patents at risk of being invalidated or interpreted narrowly and could put our patent applications at risk of not issuing. The initiation of a claim against a
third party may also cause the third party to bring counterclaims against us.

We may not be able to prevent, alone or with our licensors, misappropriation of our intellectual property rights, particularly in countries where the laws
may not protect those rights as fully as in the United States. Our business could be harmed if in a litigation the prevailing party does not offer us a license
on  commercially  reasonable  terms.  Any  litigation  or  other  proceedings  to  enforce  our  intellectual  property  rights  may  fail,  and  even  if  successful,  may
result in substantial costs and distract our management and other employees.

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.  There  could  also  be  public  announcements  of  the  results  of
hearings, motions or other interim proceedings or developments. If securities analysts or investors perceive these results to be negative, it could have a
material adverse effect on the price of our common stock.

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

Periodic maintenance fees on any issued patent are due to be paid to the U.S. PTO and foreign patent agencies in several stages over the lifetime of the
patent. The U.S. PTO and various foreign governmental patent agencies require compliance with a number of procedural, documentary, fee payment and
other similar provisions during the patent application process.

While  an  inadvertent  lapse  can  in  many  cases  be  cured  by  payment  of  a  late  fee  or  by  other  means  in  accordance  with  the  applicable  rules,  there  are
situations in which noncompliance can result in abandonment or lapse of the patent or patent application, resulting in partial or complete loss of patent
rights in the relevant jurisdiction. Non-compliance events that could result in abandonment or lapse of a patent or patent application include, but are not
limited  to,  failure  to  respond  to  official  actions  within  prescribed  time  limits,  non-payment  of  fees  and  failure  to  properly  legalize  and  submit  formal
documents. If we or our licensors that control the prosecution and maintenance of our licensed patents fail to maintain the patents and patent applications
covering our product candidates, we may lose our rights and our competitors might be able to enter the market, which would have a material adverse effect
on our business.

Risks Related to Our United States Government Contracts and Grants

There can be no assurances that we will be able to enter into a contract with BARDA to act as the sole supplier for the procurement of BCV for the
treatment of smallpox.

In April 2015, BARDA posted a notice of intent to use other than full and open competition to award a sole source contract to us for the procurement of
BCV for the treatment of smallpox. In May 2015, BARDA posted an approved justification for the use of other than full and open competition for the
contract. In July 2015, BARDA issued a RFP entitled “2015 Procurement of a Second Smallpox Antiviral Drug for the Strategic National Stockpile.” In
August 2015, we submitted a response to the RFP

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and we subsequently engaged in discussions with BARDA regarding our response. The issuance of that RFP did not culminate with agreement for the sole
source supply of BCV for the Strategic National Stockpile (SNS).

We remain in discussions with BARDA regarding the potential to supply BCV to the SNS, however, there can be no assurances that a future RFP for BCV
procurement will be issued.

Furthermore, in the event that BARDA issues an RFP for procurement of a smallpox antiviral therapeutic, there can be no assurance that we would reach
agreement with BARDA on terms related to the manufacture and delivery of BCV to the SNS. Among the material terms to be negotiated and agreed to
are: price, volume, and payment and delivery schedules, as we currently do not have BCV commercial product in inventory that would be available for
immediate delivery.

Unfavorable  provisions  in  government  contracts,  including  our  contract  with  BARDA,  may  harm  our  business,  financial  condition  and  operating
results.

United  States  government  contracts  typically  contain  unfavorable  provisions  and  are  subject  to  audit  and  modification  by  the  government  at  its  sole
discretion, which will subject us to additional risks. For example, under our contract with BARDA, the U.S. government has the power to unilaterally:

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audit  and  object  to  any  BARDA  contract-related  costs  and  fees  on  grounds  that  they  are  not  allowable  under  the  FAR,  and  require  us  to
reimburse all such costs and fees;
suspend or prevent us for a set period of time from receiving new contracts or extending our existing contract based on violations or suspected
violations of laws or regulations;
claim nonexclusive, nontransferable rights to product manufactured and intellectual property developed under the BARDA contract and may,
under  certain  circumstances,  such  as  circumstances  involving  public  health  and  safety,  license  such  inventions  to  third  parties  without  our
consent;
cancel, terminate or suspend our BARDA contract based on violations or suspected violations of laws or regulations;
terminate  our  BARDA  contract  in  whole  or  in  part  for  the  convenience  of  the  government  for  any  reason  or  no  reason,  including  if  funds
become unavailable to the applicable governmental agency;
reduce the scope and value of our BARDA contract;
decline to exercise an option to continue the BARDA contract;
direct the course of a development program in a manner not chosen by the government contractor;
require us to perform the option segments even if doing so may cause us to forego or delay the pursuit of other opportunities with greater
commercial potential;
take actions that result in a longer development timeline than expected; and
change certain terms and conditions in our BARDA contract.

The  U.S.  government  also  has  the  right  to  terminate  the  BARDA  contract  if  termination  is  in  the  government’s  interest,  or  if  we  default  by  failing  to
perform in accordance with the milestones set forth in the contract. Termination-for-convenience provisions generally enable us to recover only our costs
incurred or committed (plus a portion of the agreed fee) and settlement expenses on the work completed prior to termination. Except for the amount of
services received by the government, termination-for-default provisions do not permit recovery of fees.

In addition, we must comply with numerous laws and regulations that affect how we conduct business with the United States government. Among the most
significant government contracting regulations that affect our business are:

•

•

•
•

FAR, and agency-specific regulations supplements to the FAR, which comprehensively regulate the procurement, formation, administration
and  performance  of  government  contracts  and  implement  federal  procurement  policy  in  numerous  areas,  such  as  employment  practices,
protection of the environment, accuracy and retention periods of records, recording and charging of costs, treatment of laboratory animals and
human subject research;
business ethics and public integrity obligations, which govern conflicts of interest and the hiring of former government employees, restrict the
granting of gratuities and funding of lobbying activities and incorporate other requirements such as the Anti-Kickback Act and the Foreign
Corrupt Practices Act;
export and import control laws and regulations; and
laws, regulations and executive orders restricting the use and dissemination of information classified for national security purposes and the
exportation of certain products and technical data.

Furthermore,  we  may  be  required  to  enter  into  agreements  and  subcontracts  with  third  parties,  including  suppliers,  consultants  and  other  third-party
contractors,  in  order  to  satisfy  our  contractual  obligations  pursuant  to  our  agreements  with  the  U.S.  government.  Negotiating  and  entering  into  such
arrangements can be time-consuming and we may not be able to reach

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agreement with such third parties. Any such agreement must also be compliant with the terms of our government contract. Any delay or inability to enter
into such arrangements or entering into such arrangements in a manner that is non-compliant with the terms of our contract, may result in violations of our
contract.

As a result of these unfavorable provisions, we must undertake significant compliance activities. The diversion of resources from commercial programs to
these compliance activities, as well as the exercise by the U.S. government of any rights under these provisions, could materially harm our business.

Our business is subject to audit by the U.S. government, including under our contract with BARDA, and a negative audit could adversely affect our
business.

United States government agencies, such as the DHHS, routinely audit and investigate government contractors and recipients of federal grants, including
our  contract  with  BARDA.  These  agencies  review  a  contractor’s  performance  under  its  contracts,  cost  structure  and  compliance  with  applicable  laws,
regulations and standards.

The  DHHS  can  also  review  the  adequacy  of,  and  a  contractor’s  compliance  with,  its  internal  control  systems  and  policies,  including  the  contractor’s
purchasing, property, estimating, compensation and management information systems. Any costs found to be improperly allocated to a specific contract
will not be reimbursed, while such costs already reimbursed must be refunded. If an audit uncovers improper or illegal activities, we may be subject to civil
and criminal penalties and administrative sanctions, including:

•
•
•
•
•

termination of contracts;
forfeiture of profits;
suspension of payments;
fines; and
suspension or prohibition from conducting business with the U.S. government.

In addition, we could suffer serious reputational harm if allegations of impropriety were made against us by the U.S. government, which could adversely
affect our business.

Agreements with government agencies may lead to claims against us under the Federal False Claims Act, and these claims could result in substantial
fines and other penalties.

The biopharmaceutical industry is, and in recent years has been, under heightened scrutiny as the subject of government investigations and enforcement
actions. Our BARDA contract is subject to substantial financial penalties under the Federal Civil Monetary Penalties Act and the False Claims Act. The
False  Claims  Act  imposes  liability  on  any  person  who,  among  other  things,  knowingly  presents,  or  causes  to  be  presented,  a  false  record  or  statement
material to a false or fraudulent claim paid or approved by the government. Under the False Claims Act’s “whistleblower” provisions, private enforcement
of  fraud  claims  against  businesses  on  behalf  of  the  U.S.  government  has  increased  due  in  part  to  amendments  to  the  False  Claims  Act  that  encourage
private individuals to sue on behalf of the government. These whistleblower suits, known as qui tam actions, may be filed by private individuals, including
present and former employees. The False Claims Act provides for treble damages and significant civil monetary penalties per false claim. If our operations
are found to be in violation of any of these laws, or any other governmental regulations that apply to us, we may be subject to penalties, including civil,
criminal  and  administrative  penalties,  damages,  fines,  exclusion  from  the  Medicare  and  Medicaid  programs,  and  the  curtailment  or  restructuring  of  our
operations.  Any  penalties,  damages,  fines,  exclusions,  curtailment,  or  restructuring  of  our  operations  could  adversely  affect  our  ability  to  operate  our
business and our financial results.

Increasing demand for compassionate use of our unapproved therapies could result in losses.

Risks Related to Our Business Operations and Industry

Recent media attention to individual patients' expanded access requests has resulted in the introduction of legislation at the local and national level referred
to as "Right to Try" laws, such as the Right to Try Act, which are intended to give patients access to unapproved therapies. New and emerging legislation
regarding expanded access to unapproved drugs for life-threatening illnesses could negatively impact our business in the future. In addition, during 2014,
we  were  the  target  of  an  active  and  disruptive  social  media  campaign  related  to  a  request  for  access  to  BCV.  If  we  experience  similar  social  media
campaigns in the future, we may experience significant disruption to our business which could result in losses.

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A possible consequence of both activism and legislation in this area is the need for us to initiate an unanticipated expanded access program or to make
ONC201, DSTAT or BCV more widely available sooner than anticipated. We are a small company with limited resources and unanticipated trials or access
programs could result in diversion of resources from our primary goals.

In addition, patients who receive access to unapproved drugs through compassionate use or expanded access programs have life-threatening illnesses and
have exhausted all other available therapies. The risk for serious adverse events in this patient population is high which could have a negative impact on the
safety profile of our product candidates, which could cause significant delays or an inability to successfully commercialize them, which could materially
harm  our  business.  We  may  also  need  to  restructure  or  pause  ongoing  compassionate  use  and/or  expanded  access  programs  in  order  to  perform  the
controlled  clinical  trials  required  for  regulatory  approval  and  successful  commercialization  of  our  product  candidates,  which  could  prompt  adverse
publicity or other disruptions related to current or potential participants in such programs. The BCV compassionate use program ended in the third quarter
of 2020.

If we fail to comply with the extensive legal and regulatory requirements affecting the health care industry, we could face increased costs, delays in the
development of our product candidates, penalties and a loss of business.

Our activities, and the activities of our collaborators, partners and third-party providers, are subject to extensive government regulation and oversight both
in  the  United  States  and  in  foreign  jurisdictions.  The  FDA  and  comparable  agencies  in  other  jurisdictions  directly  regulate  many  of  our  most  critical
business  activities,  including  the  conduct  of  preclinical  and  clinical  studies,  product  manufacturing,  advertising  and  promotion,  product  distribution,
adverse event reporting and product risk management. States increasingly have been placing greater restrictions on the marketing practices of healthcare
companies. In addition, pharmaceutical and biotechnology companies have been the target of lawsuits and investigations alleging violations of government
regulations,  including  claims  asserting  submission  of  incorrect  pricing  information,  impermissible  off-label  promotion  of  pharmaceutical  products,
payments  intended  to  influence  the  referral  of  federal  or  state  healthcare  business,  submission  of  false  claims  for  government  reimbursement,  antitrust
violations, violations of the Foreign Corrupt Practices Act, or violations related to environmental matters. Violations of governmental regulation may be
punishable  by  criminal,  civil  and  administrative  sanctions,  including  fines  and  civil  monetary  penalties  and  exclusion  from  participation  in  government
programs, including Medicare and Medicaid. In addition to penalties for violation of laws and regulations, we could be required to delay or terminate the
development  of  our  product  candidates,  or  we  could  be  required  to  repay  amounts  we  received  from  government  payers,  or  pay  additional  rebates  and
interest if we are found to have miscalculated the pricing information we have submitted to the government. Whether or not we have complied with the
law,  an  investigation  into  alleged  unlawful  conduct  could  increase  our  expenses,  damage  our  reputation,  divert  management  time  and  attention  and
adversely affect our business.

Our future success depends on our ability to retain key executives and to attract, retain and motivate qualified personnel.

We are highly dependent on the principal members of our executive team. While we have entered into employment agreements or offer letters with each of
our executive officers, any of them could leave our employment at any time, as all of our employees are “at will” employees. To help attract, retain, and
motivate qualified employees, we use share-based incentive awards such as employee stock options and restricted stock units. Due to the decline in our
stock price that has occurred since December 2015, a large percentage of the options held by our employees are underwater. As of December 31, 2020,
approximately  21%  of  all  outstanding  options  had  an  exercise  price  above  the  closing  price  of  the  stock  on  that  date.  As  a  result,  the  current  situation
provides a considerable challenge to maintaining employee motivation, as well as creating a serious threat to retention until a recovery commences. If our
share-based compensation ceases to be viewed as a valuable benefit, our ability to attract, retain, and motivate employees could be weakened, which could
harm our results of operations.

We  do  not  maintain  “key  person”  insurance  for  any  of  our  executives  or  other  employees.  Recruiting  and  retaining  other  qualified  employees  for  our
business, including scientific and technical personnel, will also be critical to our success. There is currently a shortage of appropriately skilled executives in
our industry, which is likely to continue. We also experience competition for the hiring of scientific and clinical personnel from universities and research
institutions. As a result, competition for skilled personnel is intense and the turnover rate can be high. We may not be able to attract and retain personnel on
acceptable terms given the competition among numerous pharmaceutical and biotechnology companies for similar personnel. In addition, failure of any of
our clinical studies may make it more challenging to recruit and retain qualified personnel. The inability to recruit or loss of the services of any executive or
key employee may adversely affect the progress of our research, development and commercialization objectives.

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 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, which could also adversely affect the progress of our research, development and
commercialization objectives.

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

The use of our product candidates, including BCV, ONC201 and DSTAT, in clinical studies and the sale of any products for which we obtain marketing
approval  exposes  us  to  the  risk  of  product  liability  claims.  Product  liability  claims  might  be  brought  against  us  by  consumers,  health  care  providers,
pharmaceutical companies or others selling or otherwise coming into contact with our products. On occasion, large judgments have been awarded in class
action  lawsuits  based  on  drugs  that  had  unanticipated  adverse  effects.  If  we  cannot  successfully  defend  against  product  liability  claims,  we  could  incur
substantial liability and costs. In addition, regardless of merit or eventual outcome, product liability claims may result in:

impairment of our business reputation and significant negative media attention;

•
• withdrawal of participants from our clinical studies;
significant costs to defend the related litigation;
•
distraction of management’s attention from our primary business;
•
substantial monetary awards to patients or other claimants;
•
inability to commercialize our product candidates, including BCV, ONC201 and DSTAT; and
•
decreased demand for our product candidates, if approved for commercial sale.
•

We  currently  carry  $15  million  in  product  liability  insurance  covering  our  clinical  trials.  Our  current  product  liability  insurance  coverage  may  not  be
sufficient to reimburse us for any expenses or losses we may suffer. Moreover, insurance coverage is becoming increasingly expensive and in the future we
may not be able to maintain insurance coverage at a reasonable cost or in sufficient amounts to protect us against losses due to liability. If and when we
obtain marketing approval for our product candidates, we intend to expand our insurance coverage to include the sale of commercial products; however, we
may be unable to obtain product liability insurance on commercially reasonable terms or in adequate amounts. A successful product liability claim or series
of claims brought against us could cause our stock price to decline and, if judgments exceed our insurance coverage, could adversely affect our results of
operations and business.

The COVID-19 pandemic, which began in late 2019 and has spread worldwide, may affect our ability to initiate or continue our planned, ongoing and
future clinical trials, disrupt regulatory activities, disrupt our ability to maintain a commercial infrastructure for our products or have other adverse
effects on our business and operations. In addition, this pandemic has caused substantial disruption in the financial markets and may adversely impact
economies worldwide, both of which could result in adverse effects on our business and operations.

The COVID-19 pandemic, which began in December 2019, has spread worldwide, causing many governments to implement measures to slow the spread
of the outbreak through quarantines, strict travel restrictions, heightened border scrutiny, and other measures. The outbreak and government measures taken
in response have also had a significant impact, both direct and indirect, on businesses and commerce, as worker shortages have occurred; supply chains
have been disrupted; facilities and production have been suspended; and demand for certain goods and services, such as medical services and supplies, has
spiked, while demand for other goods and services, such as travel, has fallen. The future progression of the pandemic and its effects on our business and
operations are uncertain.

In  the  event  of  a  continuation  of  shelter-in-place  orders  and/or  other  mandated  local  travel  restrictions,  our  employees  conducting  research  and
development  activities  may  not  be  able  to  access  our  research  space,  and  our  core  activities  may  be  significantly  limited  or  curtailed,  possibly  for  an
extended period of time. In light of the pandemic, we may choose to pause certain research programs, delay the start of certain longer-term clinical studies
and limit hiring.

We  may  face  difficulties  recruiting  or  retaining  patients  in  our  ongoing  clinical  trials  because  of  the  pandemic.  For  example,  patients  for  our  recently
initiated trial of DSTAT as a treatment for AML may be unable or unwilling to visit clinical trial sites which may impact the collection of important clinical
trial data or such a delay may alter DSTAT's potential time to market which could reduce its commercial attractiveness in a competitive AML marketplace.
In addition, limitations in the ability to visit sites may adversely affect, our enrollment timelines for our clinical trials, and may adversely affect the timing
of completion of our clinical trials or our ability to complete clinical trials in a fully compliant manner. Additionally, the potential suspension of clinical
trial activity at clinical trial sites may have an adverse impact on our clinical trial plans and timelines.

We may face disruptions that may affect our ability to initiate and complete clinical trials including disruptions in procuring items that are essential for our
research and development activities, including, for example, raw materials used in the manufacturing of our product candidates and laboratory supplies for
planned  and  ongoing  clinical  trials,  in  each  case,  for  which  there  may  be  shortages  because  of  ongoing  efforts  to  address  the  outbreak.  Site  initiation,
participant  recruitment  and  enrollment,  participant  dosing,  distribution  of  clinical  trial  materials,  study  monitoring  and  data  analysis  may  be  paused  or
delayed due to changes in hospital or university policies, federal, state or local regulations, prioritization of hospital resources

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toward pandemic efforts, or other reasons related to the pandemic. We may face manufacturing disruptions or disruptions related to the ability to obtain
necessary institutional review board, or IRB, or other necessary site approvals, as well as other delays at clinical trial sites.

The response to the COVID-19 pandemic may redirect resources with respect to regulatory and intellectual property matters in a way that would adversely
impact our ability to progress regulatory approvals and protect our intellectual property. In addition, we may face impediments to regulatory meetings and
approvals due to measures intended to limit in-person interactions.

The  COVID-19  pandemic  has  already  caused  significant  disruptions  in  the  financial  markets,  and  may  continue  to  cause  such  disruptions,  which  could
impact  our  ability  to  raise  additional  funds  through  public  offerings  and  may  also  impact  the  volatility  of  our  stock  price  and  trading  in  our  stock.
Moreover, it is possible the pandemic will significantly impact economies worldwide, which could result in adverse effects on our business and operations.
We cannot be certain what the overall impact of the COVID-19 pandemic will be on our business and it has the potential to adversely affect our business,
financial condition, results of operations, and prospects.

We may experience difficulties in integrating the operations of Oncoceutics into our business and in realizing the expected benefits of the merger with
Oncoceutics.

The  success  of  our  merger  with  Oncoceutics  (the  Merger)  will  depend  in  part  on  our  ability  to  realize  the  anticipated  benefits  from  combining  the
operations of Oncoceutics with our business in an efficient and effective manner. The integration process could take longer than anticipated and could result
in the loss of key employees, the disruption of each company’s ongoing businesses, tax costs or inefficiencies, or inconsistencies in standards, controls,
information technology systems, procedures and policies, any of which could adversely affect our ability to achieve the anticipated benefits of the Merger,
and could harm our financial performance and impair stockholder value. If we are unable to successfully or timely integrate the operations of Oncoceutics
with our business, we may incur unanticipated liabilities and be unable to realize the revenue growth, synergies and other anticipated benefits resulting
from the Merger, and our business, results of operations and financial condition could be materially and adversely affected. We have incurred significant
costs in connection with the Merger. The substantial majority of these costs are non-recurring expenses related to the Merger. We may incur additional costs
in the integration of Oncoceutics, and may not achieve cost synergies and other benefits sufficient to offset the incremental costs of the Merger.

Risks Related To Our Common Stock

The market price of our common stock is likely to be volatile, and you may not be able to resell your shares at or above your purchase price.

The trading price of our common stock has been volatile, and is likely to continue to be volatile for the foreseeable future. Our stock price is subject to wide
fluctuations in response to a variety of factors, including the following:

•
•

results of clinical trials of our product candidates or those of our competitors;
any  delay  in  filing  an  application  for  any  of  our  product  candidates  and  any  adverse  development  or  perceived  adverse  development  with
respect to regulatory review of that application;
failure to successfully develop and commercialize our product candidates, including BCV, ONC201 and DSTAT;
termination of any of our license or collaboration agreements;
any agency or judicial enforcement actions against us;
inability to obtain additional funding;
regulatory or legal developments in the United States and other countries applicable to our product candidates;
adverse regulatory decisions;
changes in the structure of healthcare payment systems;
inability to obtain adequate product supply for our product candidates, or the inability to do so at acceptable prices;
introduction of new products, services or technologies by our competitors;
failure to meet or exceed financial projections we provide to the public;
failure to meet or exceed the estimates and projections of the investment community;
changes in the market valuations of similar companies;

•
•
•
•
•
•
•
•
•
•
•
•
• market  conditions  in  the  pharmaceutical  and  biotechnology  sectors,  and  the  issuance  of  new  or  changed  securities  analysts’  reports  or

recommendations;
announcements of significant acquisitions, strategic partnerships, joint ventures or capital commitments by us or our competitors;

•

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•

•
•
•
•
•

significant lawsuits (including patent or stockholder litigation), and disputes or other developments relating to proprietary rights (including
patents, litigation matters and our ability to obtain patent protection for our technologies);
additions or departures of key scientific or management personnel;
sales of our common stock by us or our stockholders in the future;
trading volume of our common stock;
general economic, industry and market conditions, including the impact of the ongoing COVID-19 pandemic; and
the other factors described in this “Risk Factors” section.

In addition, the stock market in general, and The Nasdaq Global Market in particular, have experienced extreme price and volume fluctuations that have
often  been  unrelated  or  disproportionate  to  the  operating  performance  of  these  companies.  Broad  market  and  industry  factors  may  negatively  affect  the
market price of our common stock, regardless of our actual operating performance.

Our principal stockholders and management own a significant percentage of our stock and will be able to exert significant control over matters subject
to stockholder approval.

Based upon shares of common stock outstanding as of December 31, 2020, our then executive officers, directors, 5% stockholders (known to us through
available information) and their affiliates beneficially owned approximately 37.2% of our voting stock. Therefore, these stockholders have the ability to
substantially influence us through this ownership position. For example, these stockholders, if they choose to act together, may be able to influence the
election of directors, amendments of our organizational documents, or approval of any merger, sale of assets, or other major corporate transaction. This
concentration of voting power could delay or prevent an acquisition of our company on terms that other stockholders may desire.

Failure  to  establish  and  maintain  adequate  finance  infrastructure  and  accounting  systems  and  controls  could  impair  our  ability  to  comply  with  the
financial reporting and internal controls requirements for publicly traded companies.

As a public company, we operate in an increasingly demanding regulatory environment, which requires us to comply with the Sarbanes-Oxley Act of 2002,
and the related rules and regulations of the Securities and Exchange Commission, expanded disclosure requirements, accelerated reporting requirements
and  more  complex  accounting  rules.  Company  responsibilities  required  by  the  Sarbanes-Oxley  Act  include  establishing  and  maintaining  corporate
oversight and adequate internal control over financial reporting and disclosure controls and procedures. Effective internal controls are necessary for us to
produce reliable financial reports and are important to help prevent financial fraud.

Our compliance with Section 404 of the Sarbanes-Oxley Act has required and will continue to require that we incur substantial accounting expense and
expend significant management efforts. In this or future years, our testing, or the subsequent testing by our independent registered public accounting firm,
may reveal deficiencies in our internal controls that we would be required to remediate in a timely manner so as to be able to comply with the requirements
of Section 404 of the Sarbanes-Oxley Act each year. If we are not able to comply with the requirements of Section 404 of the Sarbanes-Oxley Act in a
timely manner each year, we could be subject to sanctions or investigations by the Securities and Exchange Commission, The Nasdaq Stock Market or
other regulatory authorities which would require additional financial and management resources and could adversely affect the market price of our common
stock. Furthermore, if we cannot provide reliable financial reports or prevent fraud, our business and results of operations could be harmed and investors
could lose confidence in our reported financial information.

Future sales and issuances of our common stock or rights to purchase common stock, including pursuant to our equity incentive plans, could result in
additional dilution of the percentage ownership of our stockholders and could cause our stock price to fall.

We expect that significant additional capital will be needed in the future to continue our planned operations. To the extent we raise additional capital by
issuing equity securities, our stockholders may experience substantial dilution. We may sell common stock, convertible securities or other equity securities
in  one  or  more  transactions  at  prices  and  in  a  manner  we  determine  from  time  to  time.  If  we  sell  common  stock,  convertible  securities  or  other  equity
securities  in  more  than  one  transaction,  investors  may  be  materially  diluted  by  subsequent  sales.  Such  sales  may  also  result  in  material  dilution  to  our
existing stockholders, and new investors could gain rights superior to our existing stockholders.

In July 2019, we entered into a license agreement with Cantex where we acquired an exclusive license to global development and commercialization rights
to  DSTAT.  As  partial  consideration  for  our  rights  under  the  license  agreement,  we  issued  to  Cantex  10,000,000  shares  of  our  common  stock.  We  are
continuing  to  review  additional  potential  transactions  to  add  to  our  pipeline  of  product  candidates,  and  these  transactions  could  involve  the  issuance  of
additional shares of common stock or other

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equity securities. On January 7, 2021, we acquired Oncoceutics, a privately-held, clinical-stage biotechnology company developing imipridones, including
ONC201.  As  part  of  the  consideration  for  the  acquisition,  we  paid  an  upfront  cash  payment  of  approximately  $25.0  million  and  issued  an  aggregate  of
8,723,769 shares of our common stock.

Pursuant  to  our  2013  Equity  Incentive  Plan  (the  2013  Plan),  our  management  is  authorized  to  grant  stock  options  to  our  employees,  directors  and
consultants. The number of shares available for future grant under our 2013 Plan will automatically increase on January 1st each year, through January 1,
2023, by an amount equal to 4.0% of all shares of our capital stock outstanding as of December 31st of the preceding calendar year, subject to the ability of
our board of directors to take action to reduce the size of such increase in any given year. In addition, our board of directors may grant or provide for the
grant of rights to purchase shares of our common stock pursuant to the terms of our 2013 Employee Stock Purchase Plan (ESPP). The number of shares of
our common stock reserved for issuance under our ESPP will automatically increase on January 1st each year, through January 1, 2023, by an amount equal
to the lesser of 422,535 shares or one percent of all shares of our capital stock outstanding as of December 31st of the preceding calendar year, subject to
the ability of our board of directors to take action to reduce the size of such increase in any given year. Unless our board of directors elects not to increase
the number of shares underlying our 2013 Plan and ESPP each year, our stockholders may experience additional dilution, which could cause our stock price
to fall.

We have broad discretion in the use of the net proceeds from our financing transactions and may not use them effectively.

Our  management  has  broad  discretion  in  the  application  of  the  net  proceeds  from  our  financing  transactions.  Because  of  the  number  and  variability  of
factors  that  will  determine  our  use  of  the  net  proceeds  from  our  financing  transactions,  their  ultimate  use  may  vary  substantially  from  their  currently
intended use. The failure by our management to apply these funds effectively could result in financial losses that could have a material adverse effect on
our business, cause the price of our common stock to decline and delay the development of our product candidates. Pending their use, we have invested the
net  proceeds  from  our  financing  transactions  in  short-term,  investment-grade,  interest-bearing  securities.  These  investments  may  not  yield  a  favorable
return to our stockholders.

Volatility in our stock price could subject us to securities class action litigation.

In the past, securities class action litigation has often been brought against a company following a decline in the market price of its securities. This risk is
especially relevant for us because pharmaceutical companies have experienced significant stock price volatility in recent years. If we face such litigation, it
could result in substantial costs and a diversion of management’s attention and resources, which could harm our business.

Comprehensive tax reform could adversely affect our business and financial condition.

On December 22, 2017, President Trump signed into law the Tax Act which significantly revises the Internal Revenue Code of 1986, as amended. The Tax
Act, among other things, contains significant changes to corporate taxation, including reduction of the corporate tax rate from a top marginal rate of 35% to
a flat rate of 21%, limitation of the tax deduction for interest expense to 30% of adjusted earnings (except for certain small businesses), limitation of the
deduction for net operating losses generated in taxable years beginning after December 31, 2017, to 80% of current year taxable income, elimination of
most carrybacks of net operating losses arising in taxable years ending after December 31, 2017, one time taxation of offshore earnings at reduced rates
regardless of whether they are repatriated, elimination of U.S. tax on foreign earnings (subject to certain important exceptions), immediate deductions for
certain  new  investments  instead  of  deductions  for  depreciation  expense  over  time,  and  modifying  or  repealing  many  business  deductions  and
credits.  Notwithstanding  the  reduction  in  the  corporate  income  tax  rate,  the  overall  impact  of  the  Tax  Act  is  uncertain  and  our  business  and  financial
condition could be adversely affected. In addition, it is uncertain if and to what extent various states will conform to the Tax Act. The impact of this tax
reform on holders of our common stock is also uncertain and could be adverse. We urge our stockholders to consult with their legal and tax advisors with
respect to this legislation and the potential tax consequences of investing in or holding our common stock.

Our effective tax rate may fluctuate, and we may incur obligations in tax jurisdictions in excess of accrued amounts.

Our effective tax rate is derived from a combination of applicable tax rates in the various places that we operate. In preparing our financial statements, we
estimate the amount of tax that will become payable in each of such places. Nevertheless, our effective tax rate may be different than experienced in the
past due to numerous factors, including passage of the Tax Act, the results of examinations and audits of our tax filings, our inability to secure or sustain
acceptable  agreements  with  tax  authorities,  changes  in  accounting  for  income  taxes  and  changes  in  tax  laws.  Any  of  these  factors  could  cause  us  to
experience  an  effective  tax  rate  significantly  different  from  previous  periods  or  our  current  expectations  and  may  result  in  tax  obligations  in  excess  of
amounts accrued in our financial statements.

53

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

Our U.S. net operating loss (NOL) carryforwards generated in tax years ending on or prior to December 31, 2017, are only permitted to be carried forward
for 20 years under applicable U.S. tax law. Under the Tax Act, our federal NOLs generated in tax years ending after December 31, 2017, may be carried
forward indefinitely. The CARES Act revised the NOL limitations such that the of federal NOLs in tax years beginning after December 31, 2020, is limited
to 80% of taxable income. It is uncertain if and to what extent various states will conform to the Tax Act. In addition, under Sections 382 and 383 of the
Internal  Revenue  Code  of  1986,  as  amended,  and  corresponding  provisions  of  state  law,  if  a  corporation  undergoes  an  “ownership  change,”  which  is
generally defined as a greater than 50% change, by value, in its equity ownership over a three-year period, the corporation’s ability to use its pre-change
NOL carryforwards and other pre-change U.S. tax attributes (such as research tax credits) to offset its post-change income or taxes may be limited. We
have determined that a Section 382 ownership change occurred in 2002 and 2007 resulting in limitations of at least $64,000 and $762,000, respectively, of
losses incurred prior to the respective ownership change dates. In addition, we have determined that another Section 382 ownership change occurred in
2013 with our IPO, our most recent private placement and other transactions that have occurred since 2007, resulting in a limitation of at least $6.7 million
of losses incurred prior to the ownership change date. We may also experience ownership changes in the future as a result of subsequent shifts in our stock
ownership. As a result, our pre-2018 NOL carryforwards may expire prior to being used, and our NOL carryforwards generated in 2018 and thereafter will
be subject to a percentage limitation.  In addition, it is possible that we have in the past undergone, and in the future may undergo, additional ownership
changes that could limit our ability to use all of our pre-change NOLs and other pre-change tax attributes (such as research tax credits) to offset our post-
change income or taxes. Similar provisions of state tax law may also apply to limit our use of accumulated state tax attributes. In addition, at the state level,
there may be periods during which the use of NOLs is suspended or otherwise limited, which could accelerate or permanently increase state taxes owed. As
a result, we may be unable to use all or a material portion of our NOLs and other tax attributes.

Because we do not anticipate paying any cash dividends on our common stock in the foreseeable future, capital appreciation, if any, would be your sole
source of gain.

We  have  never  declared  or  paid  any  cash  dividends  on  our  common  stock.  We  currently  anticipate  that  we  will  retain  any  future  earnings  for  the
development, operation and expansion of our business and do not anticipate declaring or paying any cash dividends for the foreseeable future. As a result,
capital appreciation, if any, of our common stock would be your sole source of gain on an investment in our common stock for the foreseeable future.

Provisions in our corporate charter documents and under Delaware law could make it more difficult for a third party to acquire us or increase the cost
of  acquiring  us,  even  if  doing  so  would  benefit  our  stockholders  and  may  prevent  attempts  by  our  stockholders  to  replace  or  remove  our  current
management.

Some provisions of our charter documents 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. These
provisions include:

•

•
•
•
•

•
•

authorizing the issuance of “blank check” preferred stock, the terms of which may be established and shares of which may be issued without
stockholder  approval  which  could  be  used  to  institute  a  “poison  pill”  that  would  work  to  dilute  the  stock  ownership  of  a  potential  hostile
acquirer, effectively preventing acquisitions that have not been approved by our board of directors;
allowing the authorized number of our directors to be changed only by resolution of our board of directors;
limiting the removal of directors;
creating a staggered board of directors;
requiring  that  stockholder  actions  must  be  effected  at  a  duly  called  stockholder  meeting  and  prohibiting  stockholder  actions  by  written
consent;
eliminating the ability of stockholders to call a special meeting of stockholders; and
establishing advance notice requirements for nominations for election to the board of directors or for proposing matters that can be acted upon
at duly called stockholder meetings.

The amendment of any of these provisions, with the exception of the ability of our board of directors to issue shares of preferred stock and designate any
rights, preferences and privileges thereto, would require the affirmative vote of the holders of at least 66 2/3 percent of the voting power of all of our then
outstanding common stock.

These provisions may frustrate or prevent any attempts by our stockholders to replace or remove our current management by making it more difficult for
stockholders to replace members of our board of directors, which is responsible for appointing the members of our management. In addition, we are subject
to Section 203 of the Delaware General Corporation Law, which

54

generally prohibits a Delaware corporation from engaging in any of a broad range of business combinations with an interested stockholder for a period of
three years following the date on which the stockholder became an interested stockholder, unless such transactions are approved by our board of directors.
This provision could have the effect of delaying or preventing a change of control, whether or not it is desired by or beneficial to our stockholders. Further,
other provisions of Delaware law may also discourage, delay or prevent someone from acquiring us or merging with us.

Risks Related to Information Technology

Significant disruptions of information technology systems or breaches of data security could adversely affect our business.

Our business is increasingly dependent on critical, complex, and interdependent information technology (IT) systems, including Internet-based systems, to
support business processes as well as internal and external communications. The size and complexity of our IT systems make us potentially vulnerable to
IT system breakdowns, malicious intrusion, and computer viruses, which may result in the impairment of our ability to operate our business effectively.

In  addition,  our  systems  are  potentially  vulnerable  to  data  security  breaches-whether  by  employees  or  others-which  may  expose  sensitive  data  to
unauthorized persons. Such data security breaches could lead to the loss of trade secrets or other intellectual property, or could lead to the public exposure
of personal information (including sensitive personal information) of our employees, clinical trial patients, customers, business partners and others.

Any such disruption or security breach could result in legal proceedings, liability under laws that protect the privacy of personal information, regulatory
penalties, disruptions to our operations and collaborations, and damage to our reputation, which could harm our business and results of operations.

Increasing use of social media could give rise to liability, breaches of data security, or reputational damage.

We  and  our  employees  are  increasingly  utilizing  social  media  tools  as  a  means  of  communication  both  internally  and  externally.  Despite  our  efforts  to
monitor  evolving  social  media  communication  guidelines  and  comply  with  applicable  rules,  there  is  risk  that  the  use  of  social  media  by  us  or  our
employees  to  communicate  about  our  products  or  business  may  cause  us  to  be  found  in  violation  of  applicable  laws  and  regulations.  In  addition,  our
employees  may  knowingly  or  inadvertently  make  use  of  social  media  in  ways  that  may  not  comply  with  our  social  media  policy  or  other  legal  or
contractual  requirements,  which  may  give  rise  to  liability,  lead  to  the  loss  of  trade  secrets  or  other  intellectual  property,  or  result  in  public  exposure  of
personal information of our employees, clinical trial patients, customers, and others. Furthermore, negative posts or comments about us or our products in
social media could seriously damage our reputation, brand image, and goodwill.

55

ITEM 1B.    UNRESOLVED STAFF COMMENTS

None.

ITEM 2.    PROPERTIES

Our  corporate  headquarters  are  located  at  2505  Meridian  Parkway,  Suite  100,  Durham,  North  Carolina  27713  in  a  facility  we  lease  encompassing
approximately 24,862 square feet of office space. The leases for this facility expire in July 2026. We separately lease laboratory space in Durham, North
Carolina,  encompassing  a  total  of  approximately  7,925  square  feet.  The  lease  for  this  laboratory  space  in  Durham  expires  in  July  2026.  Through  our
subsidiary, Oncoceutics, Inc., we lease month to month approximately 489 square feet of combined office space in New York, New York and Philadelphia,
Pennsylvania.

We believe that our property and equipment are generally well maintained and in good operating condition.

ITEM 3.     LEGAL PROCEEDINGS

None.

ITEM 4.    MINE SAFETY DISCLOSURES

Not applicable.

56

PART II

ITEM 5.    MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF
EQUITY SECURITIES

Stock Performance Graph

(1)

The following graph shows a comparison from December 31, 2015 through December 31, 2020 of the cumulative total return for our common stock, the
Nasdaq Biotechnology Index (NBI) and the Nasdaq Composite Index (CCMP). The graph assumes an initial investment of $100 on December 31, 2015.
The comparisons in the graph below are based upon historical data and are not intended to forecast or be indicative of possible future performance of our
common stock or Indexes.

Comparison of Cumulative Total Return*
Among Chimerix, Inc., the Nasdaq Biotechnology Index and the Nasdaq Composite Index

(1) 

This section is not “soliciting material,” is not deemed “filed” with the SEC and is not to be incorporated by reference in any of our filings under the
Securities Act or the Exchange Act whether made before or after the date hereof and irrespective of any general incorporation language in any such filing.
* Assuming the investment of $100 on 12/31/2015 (and the reinvestment of dividends thereafter) in each of (i) Chimerix, Inc.’s common stock, (ii) the
Nasdaq Biotechnology Index and (iii) the Nasdaq Composite Index.

Stockholders

As of February 19, 2021, there were 17 stockholders of record of our common stock, which excludes stockholders whose shares were held in nominee or
street  name  by  brokers.  The  actual  number  of  common  stockholders  is  greater  than  the  number  of  record  holders,  and  includes  stockholders  who  are
beneficial  owners,  but  whose  shares  are  held  in  street  name  by  brokers  and  other  nominees.  This  number  of  holders  of  record  also  does  not  include
stockholders whose shares may be held in trust by other entities.

Dividend Policy

We  have  never  declared  or  paid  any  cash  dividends  on  our  common  stock.  We  currently  intend  to  retain  all  available  funds  and  any  future  earnings  to
support our operations and finance the growth and development of our business. We do not intend to pay cash dividends on our common stock for the
foreseeable future. Any future determination related to our dividend policy will be made at the discretion of our board of directors and will depend upon,
among other factors, our results of operations, financial condition, capital requirements, contractual restrictions, business prospects and other factors our
board of directors may deem relevant.

Recent Sales of Unregistered Securities

None.

57

 
 
 
 
Securities Authorized for Issuance Under Equity Compensation Plans

Information about our equity compensation plans is incorporated herein by reference to Item 12 of Part III of this Annual Report.

Purchases of Equity Securities by the Issuer and Affiliated Purchasers

We did not purchase any of our securities during the period covered by this Annual Report.

ITEM 6.    SELECTED FINANCIAL DATA

The following selected consolidated financial data should be read together with our consolidated financial statements and related notes and “Management’s
Discussion and Analysis of Financial Condition and Results of Operations” appearing elsewhere in this Annual Report. The selected financial data in this
section are not intended to replace our consolidated financial statements and the related notes. Our historical results are not necessarily indicative of the
results that may be expected in the future.

We derived the following selected Consolidated Statement of Operations and Comprehensive Loss Data for the years ended December 31, 2020, 2019,
and 2018 and the selected Consolidated Balance Sheet Data as of December 31, 2020 and 2019 from our audited consolidated financial statements and
related notes appearing elsewhere in this Annual Report (in thousands, except share and per share data).

Consolidated Statement of Operations and Comprehensive
Loss Data
Revenues:
     Contract revenue
     Collaboration and licensing revenue
          Total revenues
Operating expenses:
     Research and development
     General and administrative
     Acquired in-process research and development
          Total operating expenses
               Loss from operations
Other (expense) income:
     Interest income and other, net
               Net loss

Net loss per share, basic and diluted

$

$
$

Years Ended December 31,

2020

2019

2018

2017

2016

5,274  $
98 
5,372 

7,604  $
4,915 
12,519 

7,216  $
— 
7,216 

4,494  $
— 
4,494 

36,232 
13,656 
— 
49,888 
(44,516)

42,288 
21,169 
65,045 
128,502 
(115,983)

55,239 
23,582 
— 
78,821 
(71,605)

49,448 
27,148 
— 
76,596 
(72,102)

994 
(43,522) $
(0.70) $

3,407 
(112,576) $
(2.03) $

2,131 
(69,474) $
(1.43) $

1,118 
(70,984) $
(1.51) $

5,702 
— 
5,702 

58,647 
25,007 
— 
83,654 
(77,952)

1,562 
(76,390)
(1.65)

Weighted-average shares outstanding, basic and diluted

62,183,947 

55,501,973 

48,593,435 

46,963,430 

46,267,064 

58

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Consolidated Balance Sheet Data
Cash and cash equivalents
Short-term investments, available-for-sale (1)
Working capital
Long-term investments (1)
Total assets
Accumulated deficit
Total stockholders’ equity (deficit)

2020

46,989  $
31,973 
73,125 
— 
84,723 
(712,360)

73,376  $

$

$

Years Ended December 31,
2018

2019

2017

16,901  $
96,574 
108,865 
— 
119,376 
(668,838)
109,952  $

81,106  $
105,424 
176,492 
— 
190,714 
(556,262)
177,604  $

18,548  $
132,972 
143,337 
76,731 
235,230 
(486,788)
221,810  $

2016

51,463 
180,558 
226,360 
47,407 
286,770 
(415,804)
276,224 

(1)

Further details of investments is available in "Notes to Consolidated Financial Statements, Note 1. Fair Value of Financial Instruments" in Item 8
of this Annual Report.

ITEM 7.    MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The  following  discussion  and  analysis  should  be  read  in  conjunction  with  “Selected  Financial  Data”  and  our  financial  statements  and  related  notes
included elsewhere in this Annual Report. This discussion and analysis and other parts of this Annual Report contain forward-looking statements based
upon  current  beliefs,  plans  and  expectations  that  involve  risks,  uncertainties  and  assumptions,  such  as  statements  regarding  our  plans,  objectives,
expectations,  intentions  and  projections.  Our  actual  results  and  the  timing  of  selected  events  could  differ  materially  from  those  anticipated  in  these
forward-looking statements as a result of several factors, including those set forth under “Risk Factors” and elsewhere in this Annual Report. You should
carefully read the “Risk Factors” section of this Annual Report to gain an understanding of the important factors that could cause actual results to differ
materially from our forward-looking statements. Please also see the section entitled “Forward-Looking Statements.”

Overview

Chimerix is a development-stage biopharmaceutical company dedicated to accelerating the advancement of innovative medicines that make a meaningful
impact in the lives of patients living with cancer and other serious diseases. Our three most advanced clinical-stage development programs are brincidofovir
(BCV), ONC201 and dociparstat sodium (DSTAT). BCV is an antiviral drug candidate developed as a potential medical countermeasure for smallpox and
is currently under review for regulatory approval in the United States. ONC201 is currently being investigated in a number of efficacy studies for recurrent
H3 K27M-mutant glioma and a confirmatory response rate assessment, potentially sufficient for accelerated approval, is expected later this year. DSTAT is
in  Phase  3  development  as  a  potential  first-line  therapy  in  acute  myeloid  leukemia  (AML)  and  as  a  potential  treatment  for  acute  lung  injury  (ALI)  in
COVID-19 patients.

Recent Developments

BCV Oral Treatment for Smallpox

We completed the rolling NDA submission for BCV tablets and for BCV suspension for the approval of BCV as a medical countermeasure for smallpox. In
December 2020, we announced that the FDA had accepted the filing of the NDA. The FDA granted priority review and set a Prescription Drug User Fee
Act  (PDUFA)  date  of  April  7,  2021.  In  January  2021,  we  received  notification  from  the  FDA  that  the  PDUFA  date  for  review  of  BCV  as  a  medical
countermeasure  for  smallpox  has  been  moved  to  July  7,  2021.  Specifically,  FDA  requested  we  provide  a  dose  recommendation  for  infants  up  to  three
months of age. In response, we submitted to the FDA the requested modelled analyses, which resulted in the same weight-based dosing recommendation
previously  proposed  for  older  pediatric  patients.  The  ability  to  dose  across  all  pediatric  age  groups  with  a  convenient  oral  suspension  formulation  is  a
unique aspect of the BCV smallpox treatment. The FDA required an additional three months to review this information. We do not expect a delayed FDA
action date to impact the timing of the BARDA request for proposal, which is expected this quarter, nor the potential timing of first shipments of BCV to
the strategic national stockpile, expected in the second half of this year.

Imipridones and ONC201

Imipridones  are  a  potential  new  class  of  selective  cancer  therapies.  These  drug  candidates  target  specific  G  protein-coupled  receptors  (GPCRs)  and
mitochondrial caseinolytic protease P (ClpP), in an effort to produce cancer cell death. The imipridone

59

 
 
 
 
chemical  scaffold  provides  an  opportunity  to  target  GPCRs  and  ClpP  with  differential  specificity  and  function.  ONC201  selectively  targets  Dopamine
Receptor D2 (DRD2) and ClpP. ONC201 has selectively induced cell death in cancer by binding to and differentially altering activity of DRD2 and ClpP.
Clinical trials of ONC201 in glioma patients with the H3 K27M-mutation are underway at several locations in the U.S. Based on discussions with the FDA,
we plan to integrate data from ongoing ONC201 trials into a registration cohort with the potential for an NDA submission seeking accelerated approval. A
Blinded Independent Central Review analysis of Overall Response Rate (ORR) is expected to take place in 2021 which, if favorable, may form the basis
for an NDA submission seeking accelerated of ONC201 in the United States.

ONC206 and ONC212

ONC206 is a DRD2 antagonist and ClpP agonist that demonstrated enhanced non-competitive DRD2 antagonism relative to ONC201, in preclinical studies
and additionally showed disruption of DRD2 homodimers. The first-in-human clinical trial of ONC206 for adults with recurrent primary central nervous
system tumors is ongoing at the National Institute of Health (NCT04541082). ONC212 is an investigational agonist of the orphan GPCR tumor suppressor
GPR132, as well as ClpP. Similar to the potential downstream effects of ONC201 and ONC206, in vitro studies ONC212 has activated the integrated stress
response, inhibited Ras signaling and selectively killed tumor cells. Currently ONC212 is in IND-enabling studies.

Dociparstat for the Treatment of Acute Lung Injury (ALI) in COVID-19 Patients

In  April  2020,  we  announced  the  initiation  of  a  Phase  2/3  study  of  DSTAT  in  patients  with  acute  lung  injury  (ALI)  from  COVID-19.  The  study  is  a
randomized, double-blind, placebo-controlled, Phase 2/3 trial to determine the safety and efficacy of DSTAT in adults with severe COVID-19 who are at
high  risk  of  respiratory  failure.  Eligible  patients  have  confirmed  COVID-19  and  require  hospitalization  and  supplemental  oxygen  therapy.  The  primary
endpoint of the study is the proportion of patients who survive and do not require mechanical ventilation through day 28. Additional endpoints include time
to improvement as assessed by the NIAID ordinal scale, time to hospital discharge, time to resolution of fever, number of ventilator-free days, all-cause
mortality, and changes in key biomarkers.

The Phase 2 portion of the study enrolled two cohorts of 12 patients each to confirm the maximum safe dose with reviews by the Data Safety Management
Board (DSMB) after completion of each cohort.

Of the 12 patients enrolled in the first cohort, six received a 4mg/kg bolus dose of DSTAT followed by a continuous infusion of 0.25mg/kg/hour and six
received  placebo.  Although  in  a  small  number  of  patients,  subject  to  demographic  imbalances,  early  indications  suggest  a  possible  clinical  benefit  for
patients on DSTAT compared to patients on placebo. Chimerix has also completed enrollment of the second cohort of patients randomized 2:1 to receive a
4mg/kg bolus dose of DSTAT followed by a continuous infusion of 0.325mg/kg/hour versus placebo. Based on the safety assessment of the independent
safety  monitoring  committee  after  these  patients  have  completed  treatment,  Chimerix  will  consider  advancing  to  the  third  cohort  of  approximately  50
patients at the selected dose. Results from the second cohort are expected to be announced in the second quarter.

The second cohort is fully enrolled and the data will be compiled for review by the DSMB. Following review, the DSMB will recommend a dose for the
third cohort which will include approximately 50 additional patients (74 total). A formal analysis of all endpoints, including supportive biomarkers will be
performed at the conclusion of the third cohort, completing the Phase 2 portion of the study. Contingent upon positive results, the Phase 3 portion of the
study will enroll approximately 450 patients.

Dociparstat for First-Line Acute Myeloid Leukemia (AML)

During 2020, we conducted an end of Phase 2 meeting with the FDA related to our development of DSTAT in AML, which informed the design of the
Phase  3  trial.  We  recently  opened  clinical  trial  sites  and  are  ready  to  begin  screening  patients  for  our  570-subject  Phase  3  Dociparstat  in  AML  with
Standard Chemotherapy (DASH AML) study of DSTAT for the treatment of AML.

DASH AML is a randomized, double-blinded trial of approximately 570 newly diagnosed AML patients. Patients will receive DSTAT in combination with
standard  cytarabine  plus  anthracycline  (7+3)  induction  and  cytarabine  consolidation  chemotherapy  or  will  receive  standard  of  care  (7+3)  induction  and
consolidation chemotherapy alone.

In order to supplement the previously reported data from pilot and Phase 2 studies and further evaluate DSTAT’s potential mechanism of action, DASH
AML includes an early assessment of comparative CR and MRD rates among the first 80 evaluable patients.

60

The  data  from  the  first  80  evaluable  patients  of  the  trial  are  expected  to  be  unblinded,  reported  publicly,  and  available  for  ongoing  analysis  of  later
endpoints, unless the independent DMC determines that exceptional pre-specified thresholds have been achieved, in which case the DMC will have the
discretion to maintain blinding, which would allow inclusion of these patients in the final analysis.

Public Offering of Common Stock

In  January  2021,  we  entered  into  an  underwriting  agreement  (the  “Underwriting  Agreement”)  with  Jefferies  LLC  and  Cowen  and  Company,  LLC,  as
representatives  of  the  several  underwriters  named  therein  (collectively,  the  “Underwriters”),  relating  to  the  issuance  and  sale  of  11,765,000  shares  (the
“Shares”) of the Company’s common stock, par value $0.001 per share (the “Common Stock”). The price to the public in this offering is $8.50 per share,
and  the  Underwriters  agreed  to  purchase  the  Shares  pursuant  to  the  Underwriting  Agreement  at  a  price  of  $7.99  per  share.  Under  the  terms  of  the
Underwriting Agreement, the Company granted the Underwriters a 30-day option to purchase up to 1,764,750 additional shares of Common Stock at the
public offering price which was exercised in full. The net proceeds to the Company from this offering were approximately $107.8 million after deducting
underwriting discounts and commissions and estimated offering expenses. The offering closed on January 25, 2021.

Business Development Review

In  addition  to  our  transactions  with  Cantex  and  Oncoceutics,  management  is  continuing  to  conduct  a  review  and  assessment  of  potential  transaction
opportunities with the goal of building our product candidate pipeline, including, but not limited to, licensing, merger or acquisition transactions, issuing or
transferring  shares  of  common  stock,  or  the  license,  purchase  or  sale  of  specific  assets,  in  addition  to  other  potential  actions  aimed  at  maximizing
stockholder value. There can be no assurance that this review will result in the identification or consummation of any additional transaction.

Financial Overview

Revenues

To date, we have not generated any revenue from product sales. All of our revenue to date has been derived from a government grant and contract and the
receipt of up-front proceeds under our collaboration and license agreements.

In  February  2011,  we  entered  into  a  contract  with  BARDA,  a  U.S.  governmental  agency  that  supports  the  advanced  research  and  development,
manufacturing, acquisition, and stockpiling of medical countermeasures. The contract originally consisted of an initial performance period, referred to as
the  base  performance  segment,  which  ended  on  May  31,  2013,  plus  up  to  four  extension  periods,  referred  to  as  option  segments,  which  have  all  been
exercised.  The  contract  is  a  cost-plus  fixed  fee  development  contract.  Under  the  contract  as  currently  in  effect,  we  may  receive  up  to  $75.8  million  in
expense reimbursement and $5.3 million in fees. We are currently performing under the fourth option segment of the contract during which we may receive
up to a total of $4.6 million in expense reimbursement and fees. The second and third option segments were completed on August 20, 2020. The fourth
option segment is scheduled to end on April 30, 2021. As of December 31, 2020, of the total funding the Company had invoiced an aggregate of $75.5
million with respect to the base performance segment and the four option segments. Under the BARDA contract, we recognized revenue of $5.3 million,
$7.6 million, and $7.2 million during the twelve months ended December 31, 2020, 2019, and 2018, respectively.

In September 2019, we entered into a license agreement with SymBio for worldwide rights to develop, manufacture and commercialize BCV in all human
indications,  excluding  the  use  for  treatment  of  orthopoxviruses,  including  smallpox.  Under  the  contract,  we  received  a  $5.0  million  upfront  payment  in
October 2019 and could receive up to an additional $180.0 million in potential regulatory and commercial milestones. Since the license agreement was
entered into in September 2019, we have recognized all of the $5.0 million of revenue related to the upfront payment. The revenue from regulatory and
commercial milestones and royalties from net sales will be recognized upon occurrence of the triggering events.

In  the  future,  we  may  generate  revenue  from  a  combination  of  product  sales,  license  fees,  milestone  payments  and  royalties  from  the  sales  of  products
developed under licenses of our intellectual property. We expect that any revenue we generate will fluctuate from quarter to quarter as a result of the timing
and amount of license fees, milestone and other payments, and the amount and timing of payments that we receive upon the sale of our products, to the
extent  any  are  successfully  commercialized.  If  we  fail  to  complete  the  development  of  any  product  candidates  in  a  timely  manner  or  obtain  regulatory
approval for them, our ability to generate future revenue, and our results of operations and financial position, would be materially adversely affected.

61

 
Research and Development Expenses

Since our inception, we have focused our resources on our research and development activities, including conducting preclinical studies and clinical trials,
manufacturing development efforts and activities related to regulatory filings for our product candidates. We recognize research and development expenses
as they are incurred. Costs for certain development activities are recognized based on an evaluation of the progress to completion of specific tasks using
information and data provided to us by our vendors. We cannot determine with certainty the duration and completion costs of the current or future clinical
studies of any product candidates. Our research and development expenses consist primarily of:

•

•

•

•
•

fees paid to consultants and contract research organizations (CROs), including in connection with preclinical and clinical trials, and other related
clinical trial fees, such as for investigator grants, patient screening, laboratory work, clinical trial database management, clinical trial material
management and statistical compilation and analysis;
salaries and related overhead expenses, which include stock option, restricted stock units and employee stock purchase program compensation
and benefits, for personnel in research and development functions;
payments to third-party manufacturers, which produce, test and package drug substance and drug product (including continued testing of process
validation and stability);
costs related to legal and compliance with regulatory requirements; and
license fees for and milestone payments related to licensed products and technologies.

The  table  below  summarizes  our  research  and  development  expenses  for  the  periods  indicated  (in  thousands).  Our  direct  research  and  development
expenses consist primarily of external costs, such as fees paid to investigators, consultants, central laboratories and CROs, in connection with our clinical
trials,  preclinical  development,  and  payments  to  third-party  manufacturers  of  drug  substance  and  drug  product.  We  typically  use  our  employee  and
infrastructure resources across multiple research and development programs.

Direct research and development expenses
Research and development personnel costs - excluding stock-based compensation
Research and development personnel costs - stock-based compensation
Indirect research and development expenses

     Total research and development expenses

Years Ended December 31,
2019

2018

2020

$

$

19,125  $
11,543 
2,969 
2,595 
36,232  $

22,101  $
12,705 
4,089 
3,393 
42,288  $

31,325 
13,488 
5,343 
5,083 
55,239 

The successful development of product candidates is highly uncertain. At this time, we cannot reasonably estimate the nature, timing or costs of the efforts
that will be necessary to complete the development of any product candidates or the period, if any, in which material net cash inflows from any product
candidates may commence. This is due to the numerous risks and uncertainties associated with our business, as detailed in Part II, Item IA, “Risk Factors”
in this Quarterly Report on Form 10-Q and in our other filings with the SEC.

Dociparstat sodium (DSTAT)

In July of 2019, we acquired DSTAT from Cantex Pharmaceuticals. In connection with the transaction, we recorded in 2019 a total of $65.0 million in
expense. This is comprised of a $30.0 million upfront payment, $34.9 million for the fair value of the 10.0 million shares of common stock issued and $0.1
million in transaction costs. As we continue to focus on the development of DSTAT for treatment of AML patients and COVID-19, we expect research and
development expense to increase with the ongoing and planned clinical trials. We are currently enrolling a Phase 2/3 study of DSTAT in ALI for patients
with COVID-19 and have initiated our Phase 3 DASH AML trial.

Brincidofovir

We  are  developing  BCV  for  the  treatment  of  smallpox.  Under  our  cost-plus-fixed  fee  BARDA  contract  and  additional  costs  we  are  not  seeking
reimbursement for from BARDA, we incurred expense in connection with the development of orthopoxvirus animal models, the demonstration of efficacy
and  pharmacokinetics  of  BCV  in  the  animal  models,  the  conduct  of  an  open  label  clinical  safety  study  for  subjects  with  DNA  viral  infections,  the
manufacture and process validation of bulk drug substance and BCV 100 mg tablets, and submission of the NDA to the FDA. In addition, we have incurred
additional supportive costs for the development of BCV for smallpox that we are not seeking reimbursement for from BARDA.

62

 
 
 
 
 
Historically, the majority of our research and development efforts had been focused on completing our Phase 3 trial of BCV for prevention of CMV in HCT
recipients (SUPPRESS), our trial of BCV as a treatment for AdV (AdVise), the Adenovirus after Allogeneic Pediatric Transplantation (AdAPT) study in
pediatric HCT recipients and our other clinical and preclinical studies and other work needed to provide sufficient data supporting the safety, tolerability
and efficacy of BCV for approval in the United States and equivalent health authority approval outside the United States. In May 2019, we discontinued
both the oral and IV development programs of BCV in all indications other than smallpox and the associated clinical trials.

General and Administrative Expenses

General  and  administrative  expenses  consist  primarily  of  salaries  and  related  costs  for  employees  in  executive,  finance,  marketing,  investor  relations,
information  technology,  legal,  human  resources  and  administrative  support  functions,  including  share-based  compensation  expenses  and  benefits.  Other
significant  general  and  administrative  expenses  include  costs  related  to  commercial  readiness  efforts,  accounting  and  legal  services,  costs  of  various
consultants, director and officer liability insurance, occupancy costs and information systems.

Interest Income and Other, Net

Interest income and other, net consists primarily of interest earned on our cash, cash equivalents and short-term investments.

Share-based Compensation

The Financial Accounting Standards Board (FASB) authoritative guidance requires that share-based payment transactions with employees be recognized in
the  financial  statements  based  on  their  fair  value  and  recognized  as  compensation  expense  over  the  vesting  period.  Total  consolidated  share-based
compensation expense of $5.6 million, $9.5 million and $13.1 million was recognized in the years ended December 31, 2020, 2019 and 2018, respectively.
The share-based compensation expense recognized included expense for stock options, RSUs and our employee stock purchase plan purchase rights.

We estimate the fair value of our share-based awards to employees and directors using the Black-Scholes pricing model. This estimate is affected by our
stock  price  as  well  as  assumptions  including  the  expected  volatility,  expected  term,  risk-free  interest  rate,  expected  dividend  yield,  expected  rate  of
forfeiture and the fair value of the underlying common stock on the date of grant.

For performance-based RSUs, we begin to recognize the expense when it is deemed probable that the performance-based goal will be met. We evaluate the
probability of achieving performance-based goals on a quarterly basis.

Critical Accounting Policies and Significant Judgments and Estimates

Our management’s discussion and analysis of financial condition and results of operations is based on our audited consolidated financial statements, which
have  been  prepared  in  accordance  with  generally  accepted  accounting  principles  in  the  United  States  of  America  (GAAP).  The  preparation  of  these
consolidated financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses.
On  an  ongoing  basis,  we  evaluate  these  estimates  and  judgments.  We  base  our  estimates  on  historical  experience  and  on  various  assumptions  that  we
believe to be reasonable under the circumstances. These estimates and assumptions form the basis for making judgments about the carrying values of assets
and  liabilities  and  the  recording  of  revenues  and  expenses  that  are  not  readily  apparent  from  other  sources.  Actual  results  and  experiences  may  differ
materially from these estimates. In addition, our reported financial condition and results of operations could vary if new accounting standards are enacted
that are applicable to our business.

Our significant accounting policies are described in Note 1 to our audited consolidated financial statements for the year ended December 31, 2020 included
in  this  Annual  Report.  We  believe  that  our  accounting  policies  relating  to  revenue  recognition,  research  and  development  prepaids  and  accruals,
investments and share-based compensation are the most critical to understanding and evaluating our reported financial results. We have identified these
policies as critical because they both are important to the presentation of our financial condition and results of operations and require us to make judgments
and estimates on matters that are inherently uncertain and may change in future periods. For more information regarding these policies, you should refer to
Note 1 to our audited consolidated financial statements included in this Annual Report.

Revenue Recognition

Our revenues generally consist of (i) contract revenue - revenue generated under federal contracts, and (ii) collaboration and licensing revenue - revenue
related to non-refundable upfront fees, royalties and milestone payments earned under license

63

 
 
 
 
 
 
agreements.  Revenue  is  recognized  in  accordance  with  the  criteria  outlined  in  Accounting  Standards  Codification  (ASC)  606  issued  by  the  Financial
Accounting  Standards  Board  (FASB).  Following  this  accounting  pronouncement,  a  five-step  approach  is  applied  for  recognizing  revenue,  including  (1)
identify  the  contract  with  a  customer;  (2)  identify  the  performance  obligations  in  the  contract;  (3)  determine  the  transaction  price;  (4)  allocate  the
transaction price to the performance obligations in the contract; and (5) recognize revenue when, or as, the entity satisfies a performance obligation.

Biomedical Advanced Research and Development Authority (BARDA)

In February 2011, we entered into a contract with BARDA for the advanced development of brincidofovir as a medical countermeasure in the event of a
smallpox release. Under the contract, we may receive up to $75.8 million in expense reimbursement and $5.3 million in fees over the performance of 1
base segment and 4 option segments. Exercise of each option segment is solely at the discretion of BARDA. We assessed the services in accordance with
the authoritative guidance and concluded that there is a potential of 5 separate contracts (1 base segment and 4 option segments) within this agreement,
each of which has a single performance obligation. At present, all option segments (1 through 4) have been exercised, as well as the base segment. The
transaction price for each segment, based on the transaction price as defined in each segment contract, is allocated to the single performance obligation for
each contract. The transaction price is recognized over time by measuring the progress toward complete satisfaction of the performance obligation. For
reimbursable expenses, this occurs as qualifying research activities are conducted based on invoices from company vendors. For the fixed fee, the progress
toward complete satisfaction is estimated based on the costs incurred to date relative to the total estimated costs per the terms of each contract. We typically
invoice BARDA monthly as costs are incurred. Any amounts received in advance of performance are recorded as deferred revenue until earned. The base
segment and first option segment were completed prior to adoption of ASC 606.

SymBio Pharmaceuticals

On September 30, 2019, we entered into a license agreement with SymBio Pharmaceuticals Limited (SymBio) under which we granted SymBio exclusive
worldwide rights to develop, manufacture and commercialize BCV for all human indications, excluding the prevention and treatment of orthopoxviruses,
including smallpox. We assessed the agreement in accordance with the authoritative guidance and concluded that the SymBio contract includes multiple
performance obligations. The SymBio contract has one fixed transaction amount of a $5.0 million upfront payment received in October 2019 and several
variable transaction amounts, up to $180 million, due to us at certain regulatory and commercial milestones, along with low double-digit percent royalties
based on net sales of BCV. All variable transaction amounts are fully constrained, therefore the allocated transaction price is $5.0 million. The majority of
the  transaction  price  of  the  contract  has  been  allocated  to  the  combined  performance  obligation  of  the  granting  of  the  license  to  BCV  and  associated
technology transfer which was recognized when the technology transfer was completed in the fourth quarter of 2019. The revenue from regulatory and
commercial milestones and royalties from net sales will be recognized upon the occurrence of the triggering events or when those transaction amounts are
no longer fully constrained.

Research and Development Prepaids and Accruals

As  part  of  the  process  of  preparing  financial  statements,  we  are  required  to  estimate  our  expenses  resulting  from  our  obligation  under  contracts  with
vendors and consultants and clinical site agreements in connection with our research and development efforts. The financial terms of these contracts are
subject to negotiations which vary contract to contract and may result in payment flows that do not match the periods over which materials or services are
provided to us under such contracts.

Our objective is to reflect the appropriate research and development expenses in our financial statements by matching those expenses with the period in
which services and efforts are expended. We account for these expenses according to the progress of our research and development efforts. We determine
prepaid and accrual estimates through discussion with applicable personnel and outside service providers as to the progress or state of communication of
clinical trials, or other services completed. We adjust our rate of research and development expense recognition if actual results differ from our estimates.
We make estimates of our prepaid and accrued expenses as of each balance sheet date in its financial statements based on facts and circumstances known at
that time. Although we do not expect our estimates to be materially different from amounts actually incurred, our understanding of status and timing of
services performed relative to the actual status and timing of services performed may vary and may result in us reporting amounts that are too high or too
low for any particular period. Through December 31, 2020, there had been no material adjustments to our prior period estimates of prepaid and accruals for
research and development expenses. Our research and development prepaids and accruals are dependent upon the timely and accurate reporting of contract
research organizations and other third-party vendors.

64

Acquired In-Process Research and Development (IPR&D) Expense

We have acquired and may continue to acquire the rights to develop and commercialize new drug candidates. In accordance with Accounting Standards
Codification, or ASC, Subtopic 730-10-25, Accounting for Research and Development Costs, the up-front payments to acquire a new drug compound, as
well as future milestone payments when paid or payable, are immediately expensed as acquired IPR&D in transactions other than a business combination
provided  that  the  drug  has  not  achieved  regulatory  approval  for  marketing  and,  absent  obtaining  such  approval,  has  no  alternative  future  use.  Upon
obtaining regulatory approval for marketing, any subsequent milestone payments may be capitalized and amortized over the life of the asset.

Investments

Investments  consist  primarily  of  commercial  paper,  corporate  bonds,  and  U.S.  Treasury  securities.  We  invest  in  high-credit  quality  investments  in
accordance with our investment policy which minimizes the probability of loss.

Available-for-sale debt securities are carried at fair value as determined by quoted market prices, with the unrealized gains and losses, net of tax, reported
as a separate component of stockholders’ deficit. Realized gains and losses are determined using the specific identification method and transactions are
recorded on a settlement date basis in interest income (expense) and other, net. Investments with original maturities beyond three months at the date of
purchase and which mature on, or less than twelve months from, the balance sheet date are classified as short-term. Investments with a maturity beyond
twelve months from the balance sheet date are classified as long-term. We periodically review available-for-sale debt securities for other-than-temporary
declines  in  fair  value  below  the  cost  basis  and  whenever  events  or  changes  in  circumstances  indicate  that  the  carrying  amount  of  an  asset  may  not  be
recoverable. We evaluate, among other things, the duration and extent to which the fair value of a security is less than its cost; the financial condition of the
issuer  and  any  changes  thereto;  and  our  intent  to  sell,  or  whether  we  will  more  likely  than  not  be  required  to  sell,  the  security  before  recovery  of  our
amortized cost basis. Any such declines in value judged to be other-than-temporary on available-for-sale securities are reported in other-than-temporary
impairment of investment.

Valuation of Share-Based Compensation

We record the fair value of share-based awards issued as of the grant date as compensation expense. We recognize compensation expense over the requisite
service period, which is equal to the vesting period.

Share-based  compensation  expense  includes  stock  options,  RSUs  and  employee  stock  purchase  plan  purchase  rights  and  has  been  reported  in  our
Consolidated Statements of Operations and Comprehensive Loss as follows (in thousands):

Income Statement Classification:
Research and development expense
General and administrative expense

          Total stock-based compensation expense

Years Ended December 31,
2019

2020

2018

$

$

2,969  $
2,599 
5,568  $

4,089  $
5,439 
9,528  $

5,343 
7,731 
13,074 

RSU compensation expense is based on the grant-date fair value of our common stock.

We calculate the fair value of share-based compensation awards using the Black-Scholes option-pricing model. The Black-Scholes option-pricing model
requires the use of subjective assumptions, including 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 the fair value of the underlying common stock on the date of grant. In applying these
assumptions, we considered the following factors:

• We use historical volatility data to estimate the volatility of our common stock price.
• We use historical exercise data to estimate expected term.
• We determine the risk-free interest rate by reference to implied yields available from U.S. Treasury securities with a remaining term equal to

the expected life assumed at the date of grant.
The assumed dividend yield is based on our expectation of not paying dividends for the foreseeable future.

•
• We estimate forfeitures based on our historical analysis of actual stock option forfeitures.

65

 
 
 
The assumptions used in the Black-Scholes option-pricing model for the years ended December 31, 2020, 2019, and 2018 are set forth below:

Stock Options

Expected volatility
Expected term (in years)
Weighted-average risk-free interest rate
Expected dividend yield
Weighted-average fair value per option

Employee Stock Purchase Plan

Expected volatility
Expected term (in years)
Weighted-average risk-free interest rate
Expected dividend yield
Weighted-average option value per share

Years Ended December 31,
2019

2020

2018

93.24 %
6.0
1.24 %
— %

88.77 %
6.0
2.42 %
— %

$

1.78 

$

1.71 

$

85.83 %
5.9
2.52 %
— %

3.43 

Years Ended December 31,
2019

2020

2018

75.39 %
1.28
0.37 %
— %

57.22 %
1.23
2.36 %
— %

$

0.93 

$

1.00 

$

44.01 %
1.23
2.56 %
— %

1.36 

Utilization of Net Operating Loss Carryforwards

At December 31, 2020, we had net operating loss carryforwards for federal and state tax purposes of approximately $551.0 million and $388.5 million,
respectively. At December 31, 2019, we had net operating loss carryforwards for federal and state tax purposes of approximately $508.1 million and $384.3
million, respectively. In addition, we had tax credit carryforwards for federal tax purposes of approximately $20.7 million as of December 31, 2020, which
begin to expire in 2022. The future utilization of net operating loss and tax credit carryforwards may be limited due to changes in ownership. In general, if
we experience a greater than 50 percent aggregate change in ownership of certain significant stockholders or groups over a three-year period (a Section 382
ownership change), utilization of our pre-change net operating loss carryforwards is subject to an annual limitation under Section 382 of the Code (and
similar state laws). The annual limitation generally is determined by multiplying the value of our stock at the time of such ownership change (subject to
certain adjustments) by the applicable long-term tax-exempt rate. Such limitations may result in expiration of a portion of the pre-change net operating loss
carryforwards before utilization and may be substantial. We have determined that a Section 382 ownership change occurred in 2002 and 2007 resulting in
limitations  of  at  least  $64,000  and  $762,000,  respectively,  of  losses  incurred  prior  to  the  respective  ownership  change  dates.  In  addition,  we  have
determined that another Section 382 ownership change occurred in 2013 with our initial public offering, our private placements and other transactions that
have occurred since 2007, resulting in a limitation of at least $6.7 million of losses incurred prior to the ownership change date. We may also experience
ownership  changes  in  the  future  as  a  result  of  subsequent  shifts  in  our  stock  ownership.  Furthermore,  under  the  Tax  Act,  federal  net  operating  losses
incurred in 2018 and in future years may be carried forward indefinitely, but the deductibility of such federal net operating losses is limited. It is uncertain
if and to what extent various states will conform to the Tax Act. As a result, if we earn net taxable income, our ability to use our pre-change net operating
loss  carryforwards  to  offset  United  States  federal  taxable  income  may  be  subject  to  limitations,  which  could  potentially  result  in  increased  future  tax
liability to us.

66

 
 
 
 
RESULTS OF OPERATIONS

Comparison of the Years Ended December 31, 2020 and December 31, 2019

The following table summarizes our results of operations for the years ended December 31, 2020 and December 31, 2019, together with the changes in
those items in dollars and percentages (in thousands, except percentages): 

Revenues:
     Contract revenue
     Licensing revenue
          Total revenues
Operating expenses:
     Research and development
     General and administrative
     Acquired in-process research and development
          Total operating expenses
               Loss from operations
Other income:
     Interest income and other, net

               Net loss

Revenue

Years Ended December 31,

Dollar Change

% Change

2020

2019

Increase/(Decrease)

$

$

5,274  $
98 
5,372 

7,604  $
4,915 
12,519 

36,232 
13,656 
— 
49,888 
(44,516)

42,288 
21,169 
65,045 
128,502 
(115,983)

994 
(43,522) $

3,407 
(112,576) $

(2,330)
(4,817)
(7,147)

(6,056)
(7,513)
(65,045)
(78,614)
71,467 

(2,413)
69,054 

(30.6)%
(98.0)
(57.1)%

(14.3)%
(35.5)%
(100.0)%
(61.2)%
(61.6)%

(70.8)%

(61.3)%

For the year ended December 31, 2020, contract revenue decreased to $5.3 million compared to $7.6 million for the year ended December 31, 2019. The
decrease  of  $2.3  million,  or  30.6%,  was  related  to  a  decrease  in  reimbursable  expenses  associated  with  our  contract  with  BARDA.  For  the  year  ended
December  31,  2020,  license  revenue  decreased  to  $0.1  million  compared  to  $4.9  million  for  the  year  ended  December  31,  2019  due  to  our  licensing
agreement with SymBio.

Research and Development Expenses

For the year ended December 31, 2020, our research and development expenses decreased to $36.2 million compared to $42.3 million for the year ended
December 31, 2019. The decrease of $6.1 million, or 14.3%, was primarily related to the following:

•

•
•

•

a decrease of $9.1 million related to the discontinuation of both the oral and IV BCV development programs and the BCV expanded access
programs;
a decrease of $3.5 million in smallpox program expenses;
a decrease of $2.7 million related to compensation expenses as headcount was reduced as part of the Company’s restructuring activities in
May 2019; offset by
an increase of $9.5 million in DSTAT research and development expenses, consisting of an increase of $5.4 million in clinical trial initiation
activities and $4.1 million to conclude animal studies and to develop and manufacture clinical trial material.

General and Administrative Expenses

For the year ended December 31, 2020, our general and administrative expenses decreased to $13.7 million compared to $21.2 million for the year ended
December 31, 2019. The decrease of $7.5 million, or 35.5%, was primarily related to the following:

•

•
•

a decrease of $5.1 million related to compensation expense as headcount was reduced as part of the Company's restructuring activities in
May 2019;
a decrease of $2.2 million related to business development expenses and to out-license BCV for non-smallpox indications; and
a decrease of $0.2 million in legal fees, other professional fees and operational expenses.

67

 
 
 
 
 
 
 
 
 
 
 
 
 
Acquired In-Process Research and Development

We recorded $65.0 million of acquired in-process research and development expenses for the year ended December 31, 2019, which included $30.0 million
for an upfront payment to Cantex, $34.9 million related to the fair value of common stock issued to Cantex, and $0.1 million related to Cantex transaction
costs, primarily legal and professional fees. There was no expense related to this for the year ended December 31, 2020.

Interest Income and Other, net

For the year ended December 31, 2020, our interest income and other, net was $1.0 million compared to interest income of $3.4 million for the year ended
December 31, 2019. The decrease of $2.4 million was largely attributable to lower interest rates and lower cash and investment balances.

Comparison of the Years ended December 31, 2019 and December 31, 2018

The following table summarizes our results of operations for the years ended December 31, 2019 and December 31, 2018, together with the changes in
those items in dollars and percentages (in thousands, except for percentages): 

     Contract revenue
     Licensing revenue
          Total revenues
Operating expenses:
     Research and development
     General and administrative
     Acquired in-process research and development
          Total operating expenses
               Loss from operations
Other income:
     Interest income and other, net

               Net loss

* Not meaningful or not calculable

Contract Revenue

Years Ended December 31,

Dollar Change

% Change

2019

2018

Increase/(Decrease)

$

$

7,604  $
4,915 
12,519 

7,216  $
— 
7,216 

42,288 
21,169 
65,045 
128,502 
(115,983)

55,239 
23,582 
— 
78,821 
(71,605)

3,407 
(112,576) $

2,131 
(69,474) $

388 
4,915 
5,303 

(12,951)
(2,413)
65,045 
49,681 
(44,378)

1,276 
(43,102)

5.4 %
*
73.5 %

(23.4)%
(10.2)%
*
63.0 %
62.0 %

59.9 %

62.0 %

For the year ended December 31, 2019, contract revenue increased to $7.6 million compared to $7.2 million for the year ended December 31, 2018. The
increase of $0.4 million, or 5.4%, was related to an increase in reimbursable expenses associated with our contract with BARDA. License revenue was $4.9
million for the year ended December 31, 2019 due to our licensing agreement with SymBio.

Research and Development Expenses

For the year ended December 31, 2019, our research and development expenses decreased to $42.3 million compared to $55.2 million for the year ended
December 31, 2018. The decrease of $13.0 million, or 23.4%, was primarily related to the following:

•
•

•
•

a decrease of $8.4 million related to the discontinuation of both the oral and IV BCV development programs and CMX521 for norovirus;
a decrease of $2.0 million related to compensation expenses as headcount was reduced as part of the Company’s restructuring activities in
May 2019;
a decrease of $1.9 million in oral brincidofovir smallpox program expenses; and
a decrease of $1.5 million in legal fees and operational expenses;

68

 
 
 
 
 
 
 
 
 
 
•

offset by an increase of $1.2 million in DSTAT research and development expenses to initiate and conduct animal studies and to develop and
manufacture clinical trial material.

General and Administrative Expenses

For the year ended December 31, 2019, our general and administrative expenses decreased to $21.2 million compared to $23.6 million for the year ended
December 31, 2018. The decrease of $2.4 million, or 10.2%, was primarily related to the following:

•
•
•
•

a decrease of $2.9 million in commercial readiness costs;
a decrease of $0.8 million related to compensation expense; and
a decrease of $0.6 million in legal fees and operational expenses; offset by
an increase of $1.9 million related to business development expenses and to out-license BCV for non-smallpox indications.

Acquired In-Process Research and Development

We recorded $65.0 million of acquired in-process research and development expenses for the year ended December 31, 2019, which included $30.0 million
for an upfront payment to Cantex, $34.9 million related to the fair value of common stock issued to Cantex, and $0.1 million related to Cantex transaction
costs, primarily legal and professional fees.

Interest Income and Other, net

For the year ended December 31, 2019, our interest income and other, net was $3.4 million compared to interest income and other, net of $2.1 million for
the year ended December 31, 2018. The increase of $1.3 million was largely attributable to higher interest rates.

LIQUIDITY AND CAPITAL RESOURCES

As  of  December  31,  2020,  we  had  capital  available  to  fund  operations  of  approximately  $79.0  million.  Cash  in  excess  of  immediate  requirements  is
invested in accordance with our investment policy, primarily with a view to liquidity and capital preservation. We have incurred losses since our inception
in 2000 and as of December 31, 2020, we had an accumulated deficit of $712.4 million. We may continue to incur losses for the foreseeable future. The
size of our losses will depend, in part, on the rate of future expenditures and our ability to generate revenues.

On November 8, 2017, we entered into an at-the-market (ATM) sales agreement with Cowen and Company, LLC to sell up to $75 million of our common
stock under a shelf registration statement filed in November 2017. As of December 31, 2018, we had sold an aggregate of 2.8 million shares of common
stock pursuant to the ATM at a weighted average price per share of $4.00 for net offering proceeds of $10.9 million. We did not sell any shares of our
common stock subsequent to 2018 and we terminated the ATM sales agreement with Cowen and Company, LLC in July 2020.

On August 10, 2020, we entered into an Open Market Sale Agreement
 (the Jefferies Sales Agreement) with Jefferies LLC, as agent, pursuant to which
we may offer and sell, from time to time through Jefferies, up to $75 million of shares of our common stock. Sales of our common stock made pursuant to
the Jefferies Sales Agreement, if any, will be made under our shelf registration statement on Form S-3 (File No. 333-244146), which was declared effective
by the SEC on August 17, 2020. We have not sold any shares of our common stock under the Jefferies Sales Agreement.

SM

On January 20, 2021, we entered into an underwriting agreement (the “Underwriting Agreement”) with Jefferies LLC and Cowen and Company, LLC, as
representatives  of  the  several  underwriters  named  therein  (collectively,  the  “Underwriters”),  relating  to  the  issuance  and  sale  of  11,765,000  shares  (the
“Shares”) of the Company’s common stock, par value $0.001 per share (the “Common Stock”). The price to the public in this offering was $8.50 per share,
and the Underwriters agreed to purchase the Shares from the Company pursuant to the Underwriting Agreement at a price of $7.99 per share. Under the
terms of the Underwriting Agreement, the Company granted the Underwriters a 30-day option to purchase up to 1,764,750 additional shares of Common
Stock at the public offering price. The net proceeds to the Company from this offering was approximately $107.8 million, as the Underwriters’ option to
purchase additional shares was exercised in full, after deducting underwriting discounts and commissions and estimated offering expenses payable by the
Company. The offering closed on January 25, 2021.

We  cannot  assure  that  adequate  funding  will  be  available  on  terms  acceptable  to  us,  if  at  all.  Any  additional  equity  financings  will  be  dilutive  to  our
stockholders and any additional debt may involve operating covenants that may restrict our business. If

69

adequate funds are not available through these means, we may be required to curtail significantly one or more of our research or development programs,
and any launch and other commercialization expenses for any of our products that may receive marketing approval. We cannot assure you that we will
successfully develop or commercialize our products under development or that our products, if successfully developed, will generate revenues sufficient to
enable us to earn a profit.

We believe that our existing cash, cash equivalents, and investments will enable us to fund our current operating expenses and capital requirements for at
least the next 12 months. However, changing circumstances beyond our control may cause us to consume capital more rapidly than we currently anticipate.

Cash Flows

The following table sets forth the significant sources and uses of cash for the periods (in thousands):

Cash sources and uses:
     Net cash used in operating activities
     Net cash provided by investing activities
     Net cash provided by financing activities

          Net increase (decrease) in cash and cash equivalents

Operating Activities

Years Ended December 31,
2019

2020

2018

$

$

(36,038) $
64,713 
1,413 
30,088  $

(75,181) $
10,631 
345 
(64,205) $

(53,725)
105,095 
11,188 
62,558 

Net cash used in operating activities of $36.0 million for the year ended December 31, 2020 was primarily the result of our $43.5 million net loss offset by
the change in operating asset and liabilities and the add-back of non-cash expenses. The change in operating assets and liabilities includes a decrease in
prepaid  expenses  and  other  assets  of  $1.0  million  and  a  decrease  of  $0.9  million  in  accounts  receivable  offset  by  a  decrease  in  accounts  payable  and
accrued liabilities of $0.2 million. Non-cash expenses included add-backs of $5.6 million for stock based compensation and $0.4 million of depreciation of
property and equipment offset by $0.2 million of amortization of discount/premium on investments.

Net cash used in operating activities of $75.2 million for the year ended December 31, 2019 was primarily the result of our $112.6 million net loss and the
change in operating assets and liabilities, offset by the add-back of non-cash expenses. The change in operating assets and liabilities includes a decrease in
accounts payable and accrued liabilities of $4.3 million, an increase of $0.9 million in accounts receivable and an increase in prepaid expenses and other
assets of $0.8 million. Non-cash expenses included add-backs of $34.9 million for the fair value of common stock issued in relation to the Cantex license
agreement,  $9.5  million  for  stock-based  compensation,  $0.6  million  of  depreciation  of  property  and  equipment,  $0.3  million  for  the  loss  on  disposal  of
assets, offset by $1.8 million of amortization of discount/premium on investments.

Net cash used in operating activities of $53.7 million for the year ended December 31, 2018 was primarily the result of our $69.5 million net loss, offset by
the change in operating assets and liabilities and the add-back of non-cash expenses. Non-cash expenses included add-backs of $13.1 million for stock-
based compensation, $0.9 million of depreciation of property and equipment, $0.4 million for a loss on the sale of investments, and $0.3 million for a loss
on equity investment, offset by $0.9 million of amortization of discount/premium on investments. The change in operating assets and liabilities includes a
decrease in prepaid expenses and other assets of $0.6 million and a decrease of $1.4 million in accounts receivable.

Investing Activities

Net cash provided by investing activities of $64.7 million during the year ended December 31, 2020 was primarily the result of maturities and sales of
short-term  investments,  offset  by  purchases  of  short-term  investments.  Net  cash  provided  by  investing  activities  of  $10.6  million  during  the  year  ended
December  31,  2019  was  primarily  the  result  of  maturities  and  sales  of  short-term  investments,  offset  by  purchases  of  short-term.  Net  cash  provided  by
investing activities of $105.1 million during the year ended December 31, 2018 was primarily the result of maturities and sales of short-term investments,
offset by purchases of short-term and long-term investments.

Financing Activities

Net cash provided by financing activities of $1.4 million for the year ended December 31, 2020 was primarily the result of $1.4 million from the exercise
of  stock  options  and  purchases  under  the  ESPP.  Net  cash  provided  by  financing  activities  of  $0.3  million  for  the  year  ended  December  31,  2019  was
primarily the result of $0.4 million from the exercise of stock options and

70

 
purchases under the ESPP. Net cash provided by financing activities of $11.2 million for the year ended December 31, 2018 was primarily the result of
$10.9 million in proceeds from the issuance of common stock, $0.7 million from the exercise of stock options and purchases under the ESPP, offset by $0.4
million in payments of deferred offering costs.

Future Funding Requirements

To date, we have not generated any revenue from product sales. We do not know when, or if, we will generate any revenue from product sales. We do not
expect to generate significant revenue from product sales unless and until we obtain regulatory approval of and commercialize brincidofovir or any of our
other product candidates. At the same time, we expect our expenses to increase in connection with our ongoing development activities, particularly as we
continue  the  research,  development  and  clinical  trials  of,  and  seek  regulatory  approval  for,  our  product  candidates.  Furthermore,  subject  to  obtaining
regulatory  approval  of  any  of  our  product  candidates,  we  expect  to  incur  significant  commercialization  expenses  for  product  sales,  marketing,
manufacturing and distribution. We anticipate that we will need substantial additional funding in connection with our continuing operations. Based upon
our current operating plan, we believe that our existing cash, cash equivalents and short-term investments, will enable us to fund our operating expenses
and capital requirements for at least the next 12 months. We have based our estimates on assumptions that may prove to be wrong, and we may use our
available  capital  resources  sooner  than  we  currently  expect.  Because  of  the  numerous  risks  and  uncertainties  associated  with  the  development  and
commercialization of our product candidates, we are unable to estimate the amounts of increased capital outlays and operating expenditures necessary to
complete the development of our product candidates.

Until such time, if ever, as we can generate substantial revenue from product sales, we expect to finance our cash needs through a combination of equity
offerings, debt financings, government or other third-party funding, marketing and distribution arrangements, or other collaborations, strategic alliances or
licensing arrangements. To the extent that we raise additional capital through the sale of equity or convertible debt securities, the ownership interests of our
common stockholders will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect the rights of our
common  stockholders.  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 additional funds through government or other
third-party  funding,  marketing  and  distribution  arrangements  or  other  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 to grant licenses on terms
that may not be favorable to us.

CONTRACTUAL OBLIGATIONS AND COMMITMENTS

The following table summarizes our contractual obligations at December 31, 2020 (in thousands):

Total

Less Than 1
Year

1 – 3 Years

$
$
$

3,718  $
3,600  $
7,318  $

260  $
1,200  $
1,460  $

2,210  $
2,400  $
4,610  $

3 – 5 Years More Than 5 Years
— 
— 
— 

1,248  $
—  $
1,248  $

Operating leases (1)
SPL Supply Purchase Obligation

Total

(1)

Consists of our corporate headquarters lease encompassing 24,862 square feet of office space that expires in July 2026, which decreases to 21,325
feet in March 2021 as we did not renew the portion of the lease that we subleased out. Additionally, consists of our laboratory lease encompassing
a total of approximately 7,925 square feet which is located in Durham, North Carolina and expires in July 2026.

In addition to the amounts set forth in the table above, we have payment obligations under license agreements that are contingent upon future events such
as  our  achievement  of  specified  development,  regulatory  and  commercial  milestones.  We  will  be  required  to  make  additional  payments  when  certain
milestones are achieved and we are obligated to pay royalties based on future product sales. As of December 31, 2020, we were unable to estimate the
timing or likelihood of achieving the milestones or making future product sales and, therefore, any related payments are not included in the table above. In
connection with the development and commercialization of ONC201 and ONC206, in addition to royalties on product sales, we could be required to pay
former  Oncoceutics  securityholders  up  to  an  aggregate  of  $360.0  million  in  milestone  payments,  assuming  the  achievement  of  all  applicable  milestone
events under the merger agreement. In connection with the development and commercialization of DSTAT, in addition to royalties on product sales, we
could be required to pay Cantex up to an aggregate of $587.5 million in milestone payments, assuming the achievement of all applicable milestone events
under the license agreement.

71

 
 
Additionally, we enter into contracts in the normal course of business with CROs for clinical trials and clinical supply manufacturing and with vendors for
preclinical research studies and other services and products for operating purposes, which generally provide for termination or cancellation within 30 days
of  notice,  and  therefore  are  not  included  in  the  table  above.  We  also  have  agreements  with  our  executive  officers  that  require  the  funding  of  specific
payments, if certain events occur, such as a change in control or the termination of employment without cause. These potential payment obligations are not
included in the table above.

Off-Balance Sheet Arrangements

During the periods presented, we did not have, nor do we currently have, any off-balance sheet arrangements as defined under SEC rules.

ITEM 7A.     QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Our primary exposure to market risk is interest income sensitivity, which is affected by changes in the general level of U.S. interest rates. Due to the short-
term  duration  of  our  investment  portfolio  and  the  low  risk  profile  of  our  investments,  an  immediate  10.0%  change  in  interest  rates  would  not  have  a
material  effect  on  the  fair  market  value  of  our  portfolio.  Accordingly,  we  would  not  expect  our  operating  results  or  cash  flows  to  be  affected  to  any
significant degree by the effect of a sudden change in market interest rates on our investment portfolio.

We do not believe that our cash, cash equivalents and available-for-sale investments have significant risk of default or illiquidity. While we believe our cash
and  cash  equivalents  and  available-for-sale  investments  do  not  contain  excessive  risk,  we  cannot  provide  absolute  assurance  that  in  the  future  our
investments will not be subject to adverse changes in market value. In addition, we maintain significant amounts of cash and cash equivalents at one or
more financial institutions that are in excess of federally insured limits.

Inflation generally affects us by increasing our cost of labor and clinical trial costs. We do not believe that inflation has had a material effect on our results
of operations for the years ended December 31, 2020 or 2019.

72

ITEM 8.    FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

Reports of Independent Registered Public Accounting Firm
Consolidated Balance Sheets as of December 31, 2020 and 2019
Consolidated Statements of Operations and Comprehensive Loss for the Years Ended December 31, 2020, 2019 and 2018
Consolidated Statements of Stockholders’ Equity (Deficit) for the Years Ended December 31, 2020, 2019 and 2018
Consolidated Statements of Cash Flows for the Years Ended December 31, 2020, 2019 and 2018
Notes to Consolidated Financial Statements

Page

74
77
78
79
80
81

73

 
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Shareholders and the Board of Directors of Chimerix, Inc.

Opinion on the Financial Statements

We  have  audited  the  accompanying  consolidated  balance  sheets  of  Chimerix,  Inc.  (the  Company)  as  of  December  31,  2020  and  2019,  the  related
consolidated statements of operations and comprehensive loss, stockholders’ equity (deficit), and cash flows for each of the three years in the period ended
December 31, 2020, and the related notes (collectively referred to as the “consolidated financial statements“). In our opinion, the consolidated financial
statements present fairly, in all material respects, the financial position of the Company at December 31, 2020 and 2019, and the results of its operations
and its cash flows for each of the three years in the period ended December 31, 2020, in conformity with U.S. generally accepted accounting principles.

We also have 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,  2020,  based  on  criteria  established  in  Internal  Control-Integrated  Framework  issued  by  the
Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) and our report dated February 25, 2021 expressed an unqualified
opinion thereon.

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 Matter

The  critical  audit  matter  communicated  below  is  a  matter  arising  from  the  current  period  audit  of  the  financial  statements  that  was  communicated  or
required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the financial statements and (2)
involved our especially challenging, subjective or complex judgments. The communication of the critical audit matter does not alter in any way our opinion
on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion
on the critical audit matter or on the account or disclosure to which it relates.

74

Accrued Research and Development Expenses

Description of the
Matter

As  discussed  in  Note  1  to  the  consolidated  financial  statements,  within  total  accrued  liabilities,  the  Company  has  recorded  $1.4
million  of  accrued  research  and  development  expenses,  which  includes  costs  resulting  from  its  obligation  under  contracts  with
vendors and consultants and clinical site agreements in connection with its research and development efforts. As the financial terms of
these contracts vary by contract and may result in payment flows that do not match the periods over which materials or services are
provided,  the  Company  develops  estimates  to  match  expenses  with  the  period  in  which  services  and  efforts  are  expended.  The
Company determines the accrual based on discussions with applicable personnel and outside service providers as to the progress or
state of clinical trials or other services completed.

How We Addressed
the Matter in Our
Audit

Auditing  the  Company’s  accrued  research  and  development  expenses  involves  judgment  because  the  timing  of  vendor  invoicing
differs from the services actually provided.
We  obtained  an  understanding,  evaluated  the  design  and  tested  the  operating  effectiveness  of  internal  controls  that  addressed  the
information  used  in,  and  the  identified  risks  related  to,  the  Company’s  process  for  recording  accrued  research  and  development
expenses, including controls over management’s review of the progress of the research and development activities.

To evaluate the accrued research and development expenses, our audit procedures included, among others, inspecting the Company’s
contracts with the research and development related vendors (including pending change orders) and evaluating the underlying data
used  in  the  estimate  of  the  services  provided.  We  also  corroborated  the  progress  of  research  and  development  related  activities
through  inquiry  with  the  Company’s  project  managers  and  with  information  obtained  directly  from  third  party  vendors,  as  well  as
tested invoices received from vendors subsequent to the balance sheet date

 /s/ Ernst & Young LLP

We have served as the Company's auditor since 2008.
Raleigh, North Carolina
February 25, 2021

75

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Shareholders and the Board of Directors of Chimerix, Inc.

Opinion on Internal Control Over Financial Reporting

We  have  audited  Chimerix,  Inc.’s  internal  control  over  financial  reporting  as  of  December  31,  2020,  based  on  criteria  established  in  Internal  Control-
Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) (the COSO criteria). In our
opinion, Chimerix, Inc. (the Company) maintained, in all material respects, effective internal control over financial reporting as of December 31, 2020,
based on the COSO criteria.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated
balance  sheets  of  Chimerix,  Inc.  as  of  December  31,  2020  and  2019,  the  related  consolidated  statements  of  operations  and  comprehensive  loss,
stockholders‘ equity (deficit), and cash flows for each of the three years in the period ended December 31, 2020, and the related notes and our report dated
February 25, 2021 expressed an unqualified opinion thereon.

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/ Ernst & Young LLP

Raleigh, NC
February 25, 2021

76

CHIMERIX, INC.
CONSOLIDATED BALANCE SHEETS
(in thousands, except share and per share data)

ASSETS

Current assets:
     Cash and cash equivalents
     Short-term investments, available-for-sale
     Accounts receivable
     Prepaid expenses and other current assets
          Total current assets
Property and equipment, net of accumulated depreciation
Operating lease right-of-use assets
Other long-term assets

LIABILITIES AND STOCKHOLDERS' EQUITY

               Total assets

Current liabilities:
     Accounts payable
     Accrued liabilities
          Total current liabilities
Lease-related obligations
          Total liabilities
Stockholders’ equity:

Preferred stock, $0.001 par value, 10,000,000 shares authorized at December 31, 2020 and 2019; no shares issued
and outstanding as of December 31, 2020 and 2019
Common stock, $0.001 par value; 200,000,000 shares authorized at December 31, 2020 and 2019; 62,816,039 and
61,590,013 shares issued and outstanding at December 31, 2020 and 2019, respectively

     Additional paid-in capital
     Accumulated other comprehensive gain, net
     Accumulated deficit
          Total stockholders’ equity

               Total liabilities and stockholders’ equity

The accompanying notes are an integral part of the consolidated financial statements.

77

December 31,

2020

2019

46,989  $
31,973 
340 
2,356 
81,658 
214 
2,825 
26 
84,723  $

1,283  $
7,250 
8,533 
2,814 
11,347 

16,901 
96,574 
1,233 
3,385 
118,093 
540 
709 
34 
119,376 

2,398 
6,830 
9,228 
196 
9,424 

— 

— 

63 
785,673 
— 
(712,360)
73,376 
84,723  $

62 
778,693 
35 
(668,838)
109,952 
119,376 

$

$

$

$

 
 
 
 
 
 
 
 
 
 
 
 
CHIMERIX, INC.
CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS
(in thousands, except share and per share data)

Revenues:
     Contract revenue
     Licensing revenue
          Total revenues
Operating expenses:
     Research and development
     General and administrative
     Acquired in-process research and development
          Total operating expenses
               Loss from operations
Other income:
     Interest income and other, net
               Net loss
Other comprehensive loss:
     Unrealized (loss) gain on investments, net

          Comprehensive loss
Per share information:
     Net loss, basic and diluted

     Weighted-average shares outstanding, basic and diluted

Years Ended December 31,
2019

2020

2018

5,274  $
98 
5,372 

7,604  $
4,915 
12,519 

36,232 
13,656 
— 
49,888 
(44,516)

994 
(43,522)

42,288 
21,169 
65,045 
128,502 
(115,983)

3,407 
(112,576)

(35)
(43,557) $

127 
(112,449) $

7,216 
— 
7,216 

55,239 
23,582 
— 
78,821 
(71,605)

2,131 
(69,474)

871 
(68,603)

(0.70) $

(2.03) $

(1.43)

62,183,947 

55,501,973 

48,593,435 

$

$

$

The accompanying notes are an integral part of the consolidated financial statements.

78

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
CHIMERIX, INC.
CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIT)
(in thousands)

Common Stock

Additional
Paid-
in Capital

Accumulated Other
Comprehensive
Gain (Loss)

Amount

Accumulated
Deficit
(486,788) $

Shares
47,505,532  $

— 
29,262 
163,717 
233,050 
2,803,718 

— 
— 

50,735,279
— 
19,284 
209,075 
626,375 
10,000,000 

— 
— 

61,590,013 
— 
409,988 
337,072 
478,966 

— 
— 

47  $
— 
— 
— 
1 
3 

709,514  $
13,073 
115 
609 
(1)
10,597 

— 
— 

51 
— 
— 
— 
1 
10 

— 
— 

62 
— 
1 
— 
— 

— 
— 

— 
— 

733,907 
9,528 
43 
326 
(1)
34,890 

— 
— 

778,693 
5,568 
986 
426 
— 

— 
— 

(963) $
— 
— 
— 
— 
— 

871 
— 

(92)
— 
— 
— 
— 
— 

127 
— 

35 
— 
— 
— 
— 

(35)
— 

— 
— 
— 
— 
— 

— 
(69,474)

(556,262)
— 
— 
— 
— 
— 

— 
(112,576)

(668,838)

—  $
—  $
—  $
—  $

—  $
(43,522) $

Total 
Stockholders’
Equity (Deficit)
221,810 
13,073 
115 
609 
— 
10,600 

871 
(69,474)
(68,603)
177,604 
9,528 
43 
326 
— 
34,900 

127 
(112,576)
(112,449)
109,952 
5,568 
987 
426 
— 

(35)
(43,522)
(43,557)
73,376 

Balance, December 31, 2017
Share-based compensation
Exercise of stock options
Employee stock purchase plan purchases
RSU stock issuance
Issuance of common stock, net of issuance costs
Comprehensive loss:
Unrealized gain on investments, net
Net loss
Total comprehensive loss
Balance, December 31, 2018
Share-based compensation
Exercise of stock options
Employee stock purchase plan purchases
RSU stock issuance
Issuance of common stock, net of issuance costs
Comprehensive loss:
Unrealized gain on investments, net
Net loss
Total comprehensive loss
Balance, December 31, 2019
Share-based compensation
Exercise of stock options
Employee stock purchase plan purchases
RSU stock issuance
Comprehensive loss:
Unrealized loss on investments, net
Net loss
Total comprehensive loss

Balance, December 31, 2020

62,816,039  $

63  $

785,673  $

—  $

(712,360) $

The accompanying notes are an integral part of the consolidated financial statements.

79

CHIMERIX, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS
(in thousands)

Cash flows from operating activities:
     Net loss
     Adjustments to reconcile net loss to net cash used in operating activities:
          Depreciation of property and equipment
          Amortization of discount/premium on investments
          Share-based compensation
          Fair value of common stock issued for license agreement
         (Gain)/Loss on disposition of assets
          (Gain)/Loss on sale of investments
          Unrealized loss on equity investment
          Lease-related amortization
     Changes in operating assets and liabilities:
          Accounts receivable
          Prepaid expenses and other assets
          Accounts payable and accrued liabilities
               Net cash used in operating activities
Cash flows from investing activities:
          Purchases of property and equipment
          Purchases of short-term investments
          Purchases of long-term investments
          Proceeds from sales of short-term investments
          Proceeds from maturities of short-term investments
          Proceeds from sale of property and equipment
               Net cash provided by investing activities
Cash flows from financing activities:
          Proceeds from exercise of stock options
          Proceeds from employee stock purchase plan
          Proceeds from issuance of common stock, net of commissions
          Payments of deferred offering costs
               Net cash provided by financing activities
Net increase (decrease) in cash and cash equivalents
          Cash and cash equivalents:
               Beginning of period

               End of period
Supplemental disclosure of cash flow information
               Non-cash addition to deferred offering costs
               Non-cash purchases of property and equipment

Years Ended December 31,
2019

2020

2018

$

(43,522) $

(112,576) $

(69,474)

402 
(190)
5,568 
— 
(10)
(4)
— 
(14)

893 
1,025 
(186)
(36,038)

(58)
(73,978)
— 
17,287 
121,452 
10 
64,713 

987 
426 
— 
— 
1,413 
30,088 

564 
(1,842)
9,528 
34,900 
264 
31 
— 
(76)

(903)
(777)
(4,294)
(75,181)

(158)
(167,528)
— 
13,117 
165,200 
— 
10,631 

43 
325 
— 
(23)
345 
(64,205)

16,901 
46,989  $

81,106 
16,901  $

—  $
18  $

—  $
—  $

$

$
$

860 
(852)
13,074 
— 
5 
378 
348 
(59)

1,352 
638 
5 
(53,725)

(181)
(125,611)
(6,031)
111,178 
125,740 
— 
105,095 

115 
608 
10,867 
(402)
11,188 
62,558 

18,548 
81,106 

22 
— 

The accompanying notes are an integral part of the consolidated financial statements.

80

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
CHIMERIX, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 1. The Business and Summary of Significant Accounting Policies

Description of Business

Chimerix is a development-stage biopharmaceutical company dedicated to accelerating the advancement of innovative medicines that make a meaningful
impact in the lives of patients living with cancer and other serious diseases. Our three most advanced clinical-stage development programs are brincidofovir
(BCV), ONC201 and dociparstat sodium (DSTAT). BCV is an antiviral drug candidate developed as a potential medical countermeasure for smallpox and
is currently under review for regulatory approval in the United States. ONC201 is currently being investigated in a number of efficacy studies for recurrent
H3 K27M-mutant glioma and a confirmatory response rate assessment, potentially sufficient for accelerated approval, is expected later this year. DSTAT is
in  Phase  3  development  as  a  potential  first-line  therapy  in  acute  myeloid  leukemia  (AML)  and  as  a  potential  treatment  for  acute  lung  injury  (ALI)  in
COVID-19 patients.

Basis of Presentation

The consolidated financial statements include the accounts of the Company, and its wholly owned subsidiaries. The accompanying consolidated financial
statements have been prepared in accordance with accounting principles generally accepted in the United States of America (GAAP). The preparation of
the  Company’s  consolidated  financial  statements  requires  estimates  and  assumptions  that  affect  the  reported  amounts  of  assets,  liabilities,  revenues  and
expenses, and the disclosure of contingent assets and liabilities in the consolidated financial statements and accompanying notes. Although these estimates
are based on knowledge of current events and actions the Company may undertake in the future, actual results may ultimately differ from these estimates
and assumptions.

Reclassifications

Certain  prior  period  amounts  in  the  accompanying  consolidated  financial  statements  have  been  reclassified  to  conform  to  the  current  year  presentation.
These reclassifications had no effect on previously reported net income or stockholders' equity (deficit).

Cash and Cash Equivalents

The  Company  considers  any  highly  liquid  instrument  with  an  original  maturity  of  three  months  or  less  at  acquisition  to  be  a  cash  equivalent.  Cash
equivalents consist of money market funds, U.S. Treasury securities, commercial paper, and corporate bonds.

Investments

Investments consist primarily of commercial paper, corporate bonds, and U.S. Treasury securities. The Company invests in high-credit quality investments
in accordance with its investment policy which minimizes the probability of loss.

Available-for-sale debt securities are carried at fair value as determined by quoted market prices, with the unrealized gains and losses, net of tax, reported
as  a  separate  component  of  stockholders’  equity.  Realized  gains  and  losses  are  determined  using  the  specific  identification  method  and  transactions  are
recorded on a settlement date basis in interest income and other, net. For the year ended December 31, 2020, approximately $4,000 of realized gains were
reclassified  from  accumulated  other  comprehensive  loss,  net  in  the  Consolidated  Balance  Sheets  to  interest  income  and  other,  net  in  the  Consolidated
Statements of Operations and Comprehensive Loss. Investments with original maturities beyond three months at the date of purchase and which mature on,
or less than twelve months from, the balance sheet date are classified as short-term. Investments with a maturity beyond twelve months from the balance
sheet date are classified as long-term.

The  Company  periodically  reviews  available-for-sale  debt  securities  for  other-than-temporary  declines  in  fair  value  below  the  cost  basis  and  whenever
events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. The Company evaluates, among other things, the
duration  and  extent  to  which  the  fair  value  of  a  security  is  less  than  its  cost;  the  financial  condition  of  the  issuer  and  any  changes  thereto;  and  the
Company’s intent to sell, or whether it will more likely than not be required to sell, the security before recovery of its amortized cost basis. The Company
does not intend to sell, and is not likely to be required to sell, the available-for-sale debt securities in an unrealized loss position before recovery

81

of the amortized cost bases of the debt securities, which may be maturity. Any such declines in value judged to be other-than-temporary on available-for-
sale debt securities are reported in other-than-temporary impairment of investment.

Concentration of Credit Risk

Financial instruments that potentially subject the Company to concentrations of credit risk consist of cash, cash equivalents, short-term investments, long-
term  investments  and  accounts  receivable.  The  Company  is  exposed  to  credit  risk,  subject  to  federal  deposit  insurance,  in  the  event  of  default  by  the
financial institutions holding its cash and cash equivalents to the extent of amounts recorded on the balance sheets. Accounts receivable represent amounts
due from an agency of the federal government.

Accounts Receivable

Accounts  receivable  at  December  31,  2020  and  December  31,  2019  consisted  of  amounts  billed  under  the  Company’s  contract  with  the  Biomedical
Advanced  Research  and  Development  Authority  (BARDA).  Receivables  under  the  BARDA  contract  are  recorded  as  qualifying  research  activities  are
conducted  and  invoices  from  the  Company’s  vendors  are  received.  The  Company  carries  its  accounts  receivable  at  cost  less  an  allowance  for  doubtful
accounts. On a periodic basis, the Company evaluates its accounts receivable and establishes an allowance based on its history of collections and write-offs
and the current status of all receivables. The Company does not accrue interest on trade receivables. If accounts become uncollectible, they will be written
off through a charge to the allowance for doubtful accounts. The Company has not recorded a charge to allowance for doubtful accounts as management
believes all receivables are fully collectible.

Fair Value of Financial Instruments

The carrying amounts of certain financial instruments, including accounts receivable, accounts payable and accrued expenses approximate their fair values
due to the short-term nature of such instruments.

For assets and liabilities recorded at fair value, it is the Company’s policy to maximize the use of observable inputs and minimize the use of unobservable
inputs when developing fair value measurements, in accordance with the fair value hierarchy. Fair value measurements for assets and liabilities where there
exists  limited  or  no  observable  market  data  are  based  primarily  upon  estimates  and  are  often  calculated  based  on  the  economic  and  competitive
environment, the characteristics of the asset or liability and other factors. Therefore, fair value measurements cannot be determined with precision and may
not  be  realized  in  an  actual  sale  or  immediate  settlement  of  the  asset  or  liability.  Additionally,  there  may  be  inherent  weaknesses  in  any  calculation
technique  and  changes  in  the  underlying  assumptions  used,  including  discount  rates  and  estimates  of  future  cash  flows,  could  significantly  affect  the
calculated current or future fair values. The Company utilizes fair value measurements to record fair value adjustments to certain assets and liabilities and
to determine fair value disclosures.

The Company groups assets and liabilities at fair value in three levels, based on the markets in which the assets and liabilities are traded and the reliability
of the assumptions used to determine fair value. The determination of where an asset or liability falls in the hierarchy requires significant judgment. These
levels are:

•

•

•

Level 1 — Valuations based on unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the
ability to access.
Level 2 — Valuations based on quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets
or liabilities in markets that are not active, and models for which all significant inputs are observable, either directly or indirectly.
Level 3 — Valuations based on inputs that are unobservable and significant to the overall fair value measurement.

At December 31, 2020 and December 31, 2019, the Company had cash equivalents, including money market funds, and short-term investments, including
U.S. Treasury securities, whose value is based on using quoted market prices. Accordingly, these securities are classified as Level 1.

At  December  31,  2020,  the  Company  had  short-term  investments,  including  corporate  bonds.  At  December  31,  2019,  the  Company  had  short-term
investments including commercial paper and corporate bonds. As quoted prices are not available for these securities, they are valued using independent
pricing  models  or  other  model-based  valuation  techniques  such  as  the  present  value  of  future  cash  flows,  adjusted  for  the  security’s  credit  rating,
prepayment assumptions and other factors such as credit loss assumptions. Accordingly, these securities are classified as Level 2.

82

 
There was no material re-measurement to fair value of financial assets and liabilities that are not measured at fair value on a recurring basis. For additional
information regarding the Company’s investments, please refer to Note 2, "Investments."

Below is a table that presents information about certain assets measured at fair value on a recurring basis (in thousands): 

Cash equivalents
     Money market funds
          Total cash equivalents
Short-term investments
     U.S. Treasury securities
     Corporate bonds
          Total short-term investments

               Total assets

Cash equivalents
     Money market funds
          Total cash equivalents
Short-term investments
     U.S. Treasury securities
     Commercial paper
     Corporate bonds
          Total short-term investments

               Total assets

Fair Value Measurements
December 31, 2020

Quoted Prices in
Active Markets
for Identical Assets
(Level 1)

Total

Significant Other
Observable Inputs
(Level 2)

Significant
Unobservable Inputs
(Level 3)

1,503  $
1,503 

28,715 
3,258 
31,973 
33,476  $

1,503  $
1,503 

28,715 
— 
28,715 
30,218  $

—  $
— 

— 
3,258 
3,258 
3,258  $

— 
— 

— 
— 
— 
— 

Fair Value Measurements
December 31, 2019

Quoted Prices in
Active Markets
for Identical Assets
(Level 1)

Total

Significant Other
Observable Inputs
(Level 2)

Significant
Unobservable Inputs
(Level 3)

11,854  $
11,854 

22,493 
43,119 
30,962 
96,574 
108,428  $

11,854  $
11,854 

22,493 
— 
— 
22,493 
34,347  $

—  $
— 

— 
43,119 
30,962 
74,081 
74,081  $

— 
— 

— 
— 
— 
— 
— 

$

$

$

$

Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consisted of the following (in thousands):

Prepaid research and development expenses
Interest receivable
Prepaid insurance
Other prepaid expenses and current assets

     Total prepaid expenses and other current assets

83

December 31,

2020

2019

1,167  $
104 
354 
731 
2,356  $

936 
323 
344 
1,782 
3,385 

$

$

 
 
 
 
 
 
Property and Equipment

Property and equipment are stated at cost, less accumulated depreciation. Depreciation is determined on a straight-line basis over the estimated useful lives
of the assets, which generally range from three to five years. Leasehold improvements are amortized over the shorter of the useful life of the asset or the
term of the related lease. Maintenance and repairs are charged against expense as incurred.

Impairment of Property and Equipment

The Company evaluates property and equipment for impairment whenever events or changes in circumstances indicate that the carrying value of an asset
may not be recoverable. If the estimated future cash flows (undiscounted and without interest charges) from the use of an asset are less than the carrying
value, a write-down would be recorded to reduce the related asset to its estimated fair value. For the twelve months ended December 31, 2020, no such
write-downs have occurred. For the twelve months ended December 31, 2019, there were $264,000 of write-downs.

Leases

At the inception of an arrangement, we determine if an arrangement is, or contains, a lease based on the unique facts and circumstances present in that
arrangement.  Lease  classification,  recognition,  and  measurement  are  then  determined  at  the  lease  commencement  date.  For  arrangements  that  contain  a
lease we (i) identify lease and non-lease components, (ii) determine the consideration in the contract, (iii) determine whether the lease is an operating or
financing lease; and (iv) recognize lease right-of-use (ROU) assets and liabilities. Lease liabilities and their corresponding ROU assets are recorded based
on the present value of lease payments over the expected lease term. The interest rate implicit in lease contracts is typically not readily determinable and as
such, we use our incremental borrowing rate based on the information available at the lease commencement date, which represents an internally developed
rate  that  would  be  incurred  to  borrow,  on  a  collateralized  basis,  over  a  similar  term,  an  amount  equal  to  the  lease  payments  in  a  similar  economic
environment.

Most leases include options to renew and, or, terminate the lease, which can impact the lease term. The exercise of these options is at our discretion and we
do not include any of these options within the expected lease term as we are not reasonably certain we will exercise these options.

The current portion of our operating lease liabilities is included in accrued liabilities and the long-term portion is included in lease-related obligations.

Accrued Liabilities

Accrued liabilities consisted of the following (in thousands):

Accrued compensation
Accrued research and development expenses
Accrued legal expenses
Other accrued liabilities

     Total accrued liabilities

Revenue Recognition

Policy

December 31,

2020

2019

4,473  $
1,375 
651 
751 
7,250  $

3,626 
1,868 
78 
1,258 
6,830 

$

$

The Company’s revenues generally consist of (i) contract revenue - revenue generated under federal contracts, and (ii) collaboration and licensing revenue -
revenue related to non-refundable upfront fees, royalties and milestone payments earned under license agreements. Revenue is recognized in accordance
with the criteria outlined in Accounting Standards Codification (ASC) 606 issued by the Financial Accounting Standards Board (FASB). Following this
accounting pronouncement, a five-step approach is applied for recognizing revenue, including (1) identify the contract with a customer; (2) identify the
performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to the performance obligations in the contract;
and (5) recognize revenue when, or as, the entity satisfies a performance obligation.

84

 
Biomedical Advanced Research and Development Authority (BARDA)

In February 2011, the Company entered into a contract with BARDA for the advanced development of brincidofovir as a medical countermeasure in the
event of a smallpox release. Under the contract, the Company may receive up to $75.8 million in expense reimbursement and $5.3 million in fees over the
performance of 1 base segment and 4 option segments. Exercise of each option segment is solely at the discretion of BARDA. The Company assessed the
services  in  accordance  with  the  authoritative  guidance  and  concluded  that  there  is  a  potential  of  5  separate  contracts  (1  base  segment  and  four  option
segments) within this agreement, each of which has a single performance obligation. At present, all option segments (1 through 4) have been exercised, as
well as the base segment. The transaction price for each segment, based on the transaction price as defined in each segment contract, is allocated to the
single performance obligation for each contract. The transaction price for each segment, based on the transaction price as defined in each segment contract,
is  allocated  to  the  single  performance  obligation  for  each  contract.  The  transaction  price  is  recognized  over  time  by  measuring  the  progress  toward
complete  satisfaction  of  the  performance  obligation.  For  reimbursable  expenses,  this  occurs  as  qualifying  research  activities  are  conducted  based  on
invoices from company vendors. For the fixed fee, the progress toward complete satisfaction is estimated based on the costs incurred to date relative to the
total  estimated  costs  per  the  terms  of  each  contract.  The  Company  typically  invoices  BARDA  monthly  as  costs  are  incurred.  Any  amounts  received  in
advance of performance are recorded as deferred revenue until earned. The base segment and first option segment were completed prior to adoption of ASC
606. The Company is currently performing under the fourth option segment of the contract during which the Company may receive up to a total of $4.6
million  in  expense  reimbursement  and  fees.  The  second  and  third  option  segments  were  completed  on  August  20,  2020.  The  fourth  option  segment  is
scheduled to end on April 30, 2021.

SymBio Pharmaceuticals

On  September  30,  2019,  the  Company  entered  into  a  license  agreement  with  SymBio  Pharmaceuticals  Limited  (SymBio)  under  which  the  Company
granted  SymBio  exclusive  worldwide  rights  to  develop,  manufacture  and  commercialize  BCV  for  all  human  indications,  excluding  the  prevention  and
treatment of orthopoxviruses, including smallpox. The Company assessed the agreement in accordance with the authoritative guidance and concluded that
the SymBio contract includes multiple performance obligations. The SymBio contract has one fixed transaction amount of a $5.0 million upfront payment
received  in  October  2019  and  several  variable  transaction  amounts,  up  to  $180.0  million,  due  to  the  Company  at  certain  regulatory  and  commercial
milestones, along with low double-digit percent royalties based on net sales of BCV. All variable transaction amounts are fully constrained, therefore the
allocated transaction price is $5.0 million. The majority of the transaction price of the contract has been allocated to the combined performance obligation
of the granting of the license to BCV and associated technology transfer which was recognized when the technology transfer was completed in the fourth
quarter  of  2019.  The  revenue  from  regulatory  and  commercial  milestones  and  royalties  from  net  sales  will  be  recognized  upon  the  occurrence  of  the
triggering events or when those transaction amounts are no longer fully constrained.

Research and Development Prepaids and Accruals

As part of the process of preparing financial statements, the Company is required to estimate its expenses resulting from its obligation under contracts with
vendors and consultants and clinical site agreements in connection with its research and development efforts. The financial terms of these contracts are
subject to negotiations which vary contract to contract and may result in payment flows that do not match the periods over which materials or services are
provided to the Company under such contracts.

The Company’s objective is to reflect the appropriate research and development expenses in its financial statements by matching those expenses with the
period in which services and efforts are expended. The Company accounts for these expenses according to the progress of its research and development
efforts.  The  Company  determines  prepaid  and  accrual  estimates  through  discussion  with  applicable  personnel  and  outside  service  providers  as  to  the
progress  or  state  of  communication  of  clinical  trials,  or  other  services  completed.  The  Company  adjusts  its  rate  of  research  and  development  expense
recognition if actual results differ from its estimates. The Company makes estimates of its prepaid and accrued expenses as of each balance sheet date in its
financial statements based on facts and circumstances known at that time. Although the Company does not expect its estimates to be materially different
from amounts actually incurred, its understanding of status and timing of services performed relative to the actual status and timing of services performed
may vary and may result in the Company reporting amounts that are too high or too low for any particular period. Through December 31, 2020, there had
been  no  material  adjustments  to  the  Company’s  prior  period  estimates  of  prepaid  and  accruals  for  research  and  development  expenses.  The  Company’s
research and development prepaids and accruals are dependent upon the timely and accurate reporting of contract research organizations and other third-
party vendors.

85

Research and Development Expenses

Major components of research and development costs include cash compensation, stock based compensation, pre-clinical studies, clinical trial and related
clinical manufacturing, drug development, materials and supplies, legal, regulatory compliance, and fees paid to consultants and other entities that conduct
certain  research  and  development  activities  on  the  Company’s  behalf.  Research  and  development  costs,  including  upfront  fees  and  milestones  paid  to
contract research organizations, are expensed as goods are received or services rendered. Costs incurred in connection with clinical trial activities for which
the underlying nature of the activities themselves do not directly relate to active research and development, such as costs incurred for market research and
focus groups linked to clinical strategy as well as costs to build the Company’s brand, are not included in research and development costs but are reflected
as general and administrative costs.

Interest Income and Other, Net

Interest income and other, net consists primarily of interest earned on our cash, cash equivalents and short-term investments.

Income Taxes

Deferred  tax  assets  and  liabilities  are  determined  based  on  differences  between  the  financial  and  tax  reporting  bases  of  assets  and  liabilities  and  are
measured  using  enacted  tax  rates  and  laws  that  are  expected  to  be  in  effect  when  the  differences  are  expected  to  reverse.  Valuation  allowances  are
established when the Company determines that it is more likely than not that some portion of a deferred tax asset will not be realized. The Company has
incurred  operating  losses  from  April  7,  2000  (inception)  through  December  31,  2020,  and  therefore  has  not  recorded  any  current  provision  for  income
taxes.

Additionally, the Company recognizes the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained
on examination by the taxing authorities based on the technical merits of the position. The tax benefit recognized in the financial statements for a particular
tax position is based on the largest benefit that is more likely than not to be realized upon settlement. Accordingly, the Company establishes reserves for
uncertain tax positions.

The FASB Staff Q&A, Topic 740, No. 5, Accounting for Global Intangible Low-Taxed Income (GILTI), states that an entity can make an accounting policy
election to either recognized deferred taxes for temporary basis differences expected to reverse as GILTI in future years or to provide for the tax expense
related to GILTI in the year the tax is incurred as a period expense only. The Company has elected to account for GILTI as a period expense in the year the
tax is incurred.

Share-Based Compensation

The Company measures and recognizes compensation expense for all share-based payment awards made to employees and directors, including employee
stock options, restricted stock units and the employee stock purchase plan purchase rights, based on estimated fair values. The fair value of employee stock
options and employee stock purchase plan purchase rights is estimated on the grant date using the Black-Scholes valuation model. The grant-date fair value
for restricted stock units is based upon the market price of the Company’s common stock on the date of the grant. The value of the portion of the award that
is ultimately expected to vest is recorded as expense over the requisite service periods. For performance-based awards compensation cost is recognized
when it is probable that the performance criteria will be met.

The Company estimates forfeitures at the time of grant and revises those estimates in subsequent periods if actual forfeitures differ from its estimates. The
Company uses historical data to estimate forfeitures and records share-based compensation expense only for those awards that are expected to vest. To the
extent that actual forfeitures differ from the Company’s estimates, the difference is recorded as a cumulative adjustment in the period the estimates were
revised. For the years ended December 31, 2020, 2019 and 2018, the Company applied a forfeiture rate based on the Company’s historical forfeitures.

401(k) Plan

The  Company  maintains  a  defined  contribution  employee  retirement  plan  (401(k)  plan).  For  the  years  ended  December  31,  2020,  2019  and  2018,  the
Company recognized expenses for matching contributions of $0.3 million, $0.3 million and $0.4 million, respectively.

Basic and Dilutive Net Loss Per Share of Common Stock

Basic net loss per share of common stock is computed by dividing net loss by the weighted-average number of shares of common stock outstanding during
the period, excluding the dilutive effects of warrants to purchase common stock, non-vested

86

restricted stock, stock options, and employee stock purchase plan purchase rights. Diluted net loss per share of common stock is computed by dividing net
loss by the sum of the weighted-average number of shares of common stock outstanding during the period plus the potential dilutive effects of warrants to
purchase  common  stock,  non-vested  restricted  stock,  stock  options,  and  employee  stock  purchase  plan  purchase  rights  outstanding  during  the  period
calculated in accordance with the treasury stock method, but are excluded if their effect is anti-dilutive. Because the impact of these items is anti-dilutive
during the periods of net loss, there was no difference between basic and diluted loss per share of common stock at December 31, 2020, 2019 and 2018.

The  calculation  of  weighted-average  diluted  shares  outstanding  excludes  the  dilutive  effect  of  non-vested  restricted  stock,  stock  options  to  purchase
common stock, and employee stock purchase plan purchase rights as the impact of such items are anti-dilutive during periods of net loss. Potential common
shares excluded from the calculations were 1,162,161, 1,571,356, and 749,110, for the years ended December 31, 2020, 2019 and 2018, respectively.

Segments

The Company operates in only one segment, pharmaceuticals.

Impact of Recently Issued Accounting Standards

In June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments,
which  amends  the  impairment  model  by  requiring  entities  to  use  a  forward-looking  approach  on  expected  losses  to  estimate  credit  losses  on  certain
financial instruments, including trade receivables and available-for-sale debt securities. The new guidance was originally due to become effective for the
Company beginning in the first quarter of 2020, however the FASB in November 2019 issued ASU 2019-10 which moved the effective date for smaller
reporting companies to the first quarter of 2023. The Company is currently evaluating the potential impact that this standard may have on its consolidated
financial statements.

Note 2. Investments 

The following tables summarize the Company’s short-term and long-term debt investments (in thousands):

Corporate bonds
U.S. Treasury securities

     Total investments

Corporate bonds
Commercial paper
U.S. Treasury securities

     Total investments

Amortized
Cost

3,256  $

28,717 
31,973  $

Amortized
Cost

30,952  $
43,109 
22,478 
96,539  $

$

$

$

$

December 31, 2020

Gross
Unrealized
Gains

Gross
Unrealized
Losses

Estimated
Fair Value

2  $
1 
3  $

—  $
(3)
(3) $

3,258 
28,715 
31,973 

December 31, 2019

Gross
Unrealized
Gains

Gross
Unrealized
Losses

Estimated
Fair Value

19  $
14 
17 
50  $

(9) $
(4)
(2)
(15) $

30,962 
43,119 
22,493 
96,574 

87

 
 
The  following  tables  summarize  the  Company’s  debt  investments  with  unrealized  losses,  aggregated  by  investment  type  and  the  length  of  time  that
individual investments have been in a continuous unrealized loss position (in thousands, except number of securities):

U.S. Treasury securities

Total

Number of securities with unrealized losses

Corporate bonds
Commercial paper
U.S. Treasury securities

Total

Number of securities with unrealized losses

Less than 12 Months

December 31, 2020
Greater than 12 Months

Total

Fair Value

Unrealized
Loss

Fair Value

Unrealized
Loss

Fair Value

Unrealized
Loss

16,598  $
16,598  $

(3) $
(3) $

6 

—  $
—  $

—  $
—  $

— 

16,598  $
16,598  $

(3)
(3)

6 

Less than 12 Months

December 31, 2019
Greater than 12 Months

Total

Fair Value

Unrealized
Loss

Fair Value

Unrealized
Loss

Fair Value

Unrealized
Loss

9,657  $

10,147 
2,994 
22,798  $

(9) $
(4)
(2)
(15) $

9 

—  $
— 
— 
—  $

—  $
— 
— 
—  $

— 

9,657  $

10,147 
2,994 
22,798  $

(9)
(4)
(2)
(15)

9 

$
$

$

$

The following table summarizes the scheduled maturity for the Company’s debt investments at December 31, 2020 (in thousands):

Maturing in one year or less

Total debt investments

Note 3. Property and Equipment

Property and equipment, net of accumulated depreciation consisted of the following (in thousands):

Lab equipment
Leasehold improvements
Computer equipment
Office furniture and equipment
     Property and equipment
     Less accumulated depreciation

          Property and equipment, net of accumulated depreciation

Note 4. Commitments and Contingencies

Leases

December 31, 2020

$
$

31,973 
31,973 

December 31,

2020

2019

2,323  $
1,584 
1,207 
520 
5,634 
(5,420)

214  $

2,329 
1,550 
1,182 
520 
5,581 
(5,041)
540 

$

$

The Company leases its facilities under long-term operating leases that expire at various dates through 2026. The Company generally has options to renew
lease terms on its facilities, which may be exercised at the Company’s sole discretion. In addition, certain lease arrangements may be terminated prior to
their  original  expiration  date  at  the  Company’s  discretion.  The  Company  evaluates  renewal  and  termination  options  at  the  lease  commencement  date  to
determine if it is reasonably certain to

88

 
 
 
exercise  the  option  and  has  concluded  on  all  operating  leases  that  it  is  not  reasonably  certain  that  any  options  will  be  exercised.  The  weighted-average
remaining lease term for the Company’s operating leases as of December 31, 2020 was 5.56 years.

Expense  related  to  leases  is  recorded  on  a  straight-line  basis  over  the  lease  term.  Lease  expense  under  operating  leases,  including  common  area
maintenance fees, totaled approximately $745,000 and $724,000, respectively, for the twelve months ended December 31, 2020 and 2019, respectively.

The discount rate implicit within the Company’s leases is generally not determinable and therefore the Company determines the discount rate based on its
incremental borrowing rate based on the information available at commencement date. As of December 31, 2020, the operating lease liabilities reflect a
weighted-average discount rate of 7.91%.

The following table sets forth the operating lease right-of-use assets and liabilities as of December 31, 2020 (in thousands):

Assets
Operating Lease Right-of-Use Assets

Liabilities
Operating Lease Short-term Liabilities (recorded within Accrued liabilities)
Operating Lease Long-term Liabilities (recorded within Lease-related obligations)

     Total Operating Lease Liabilities

Operating lease payments over the remainder of the lease terms are as follows (in thousands):

Years Ending December 31,
2021 (1)
2022
2023
2024
2025
Thereafter
Total future minimum rental payments
     Less amount of lease payments representing interest

Total present value of lease payments

$

$

$

$

$

$

2,825 

112 
2,814 
2,926 

As of December 31, 2020

260 
715 
736 
759 
781 
467 
3,718 
792 
2,926 

(1) The Company entered into the Ninth Amendment of its lease for the Company's headquarters in Durham, North Carolina, which extended the term
of the lease 65 months to July 31, 2026. As part of the amendment, the Company will receive a rent abatement of the first 5 months of the new
lease  term  which  begins  on  March  1,  2021.  Additionally,  the  Ninth  Amendment  grants  the  Company  a  refurbishment  allowance,  which  the
Company expects to receive in 2021 after the refurbishment has been completed.

For the twelve months ended December 31, 2020 and 2019, the Company made lease payments of approximately $685,000 and $751,000, respectively,
which are included in operating cash flows.

Sublease

The Company subleases 3,537 square feet of its office space under a non-cancelable operating lease that expires February 2021. For the twelve months
ended  December  31,  2020  and  2019,  the  Company  recognized  approximately  $71,000  of  income  in  Interest  income  and  other,  net  on  the  Consolidated
Statement  of  Operations  and  Comprehensive  Loss.  Total  future  minimum  rentals  under  the  non-cancelable  operating  sublease  are  presented  below  (in
thousands):

Years Ending December 31,
2021

     Total future minimum sublease rentals

89

Minimum
Sublease
Rentals

$
$

14 
14 

Significance of Revenue Source

The Company is the recipient of federal research contract funds from BARDA. Periodic audits are required under the grant and contract agreements and
certain costs may be questioned as appropriate under the agreements. At December 31, 2020, the Company had recorded a $38,000 provision for potential
refundable amounts. At December 31, 2019, no provision for refundable amounts under the agreements had been made.

Note 5. Stockholders’ Equity (Deficit)

Common Stock

The Company’s common stock consists of 200 million authorized shares at December 31, 2020 and 2019, and 62.8 million and 61.6 million shares issued
and outstanding at December 31, 2020 and December 31, 2019, respectively.

Shares Reserved for Future Issuance

The Company has reserved shares of common stock for future issuances as follows:

For exercise of outstanding common stock options
For delivery upon vesting of outstanding restricted stock units
For future equity awards under the 2013 Equity Incentive Plan
For future purchases under the 2013 Employee Stock Purchase Plan

     Total shares of common stock reserved for future issuances

Stock Options

December 31,

2020
8,906,271 
1,133,049 
3,342,555 
2,419,213 
15,801,088 

2019
8,390,304 
1,561,237 
1,855,688 
2,333,750 
14,140,979 

The Company maintains a 2013 Equity Incentive Plan (the 2013 Plan). The 2013 Plan provides for the grant of incentive stock options (ISOs), nonstatutory
stock options (NSOs), stock appreciation rights, restricted stock awards, restricted stock unit (RSU) awards, performance-based stock awards, and other
forms  of  equity  compensation  (collectively,  stock  awards),  all  of  which  may  be  granted  to  employees,  including  officers,  non-employee  directors  and
consultants of the Company and its affiliates. Additionally, the 2013 Plan provides for the grant of performance cash awards. ISOs may be granted only to
employees. All other awards may be granted to employees, including officers, and to non-employee directors and consultants. The number of shares of
common stock reserved for issuance under the 2013 Plan will automatically increase on January 1 of each year, continuing through and including January
1, 2023, by 4.0% of the total number of shares of capital stock outstanding on December 31 of the preceding calendar year, or a lesser number of shares
determined by the Company’s board of directors.

The Company estimates the fair value of its share-based awards to employees, directors and consultants using the Black-Scholes option-pricing model. The
Black-Scholes model requires the input of assumptions, including (a) the expected stock price volatility, (b) the calculation of expected term of the award,
(c) the risk-free interest rate and (d) expected dividends. For stock options, the Company uses historical exercise data to estimate the expected life. The
risk-free  interest  rates  for  the  periods  within  the  expected  life  of  the  option  are  based  on  the  U.S.  Treasury  instrument  with  a  life  that  is  similar  to  the
expected life of the option grant. The Company has never paid, and does not expect to pay, dividends in the foreseeable future.

90

 
The following table illustrates the assumptions for the Black-Scholes model used in determining the fair value of the stock options granted:

Expected volatility
Expected term (in years)
Weighted-average risk-free interest rate
Expected dividend yield
Weighted-average fair value per option

A summary of activity related to the Company’s stock options is as follows:

Years Ended December 31,
2019

2020

2018

93.24 %
6.0
1.24 %
— %

88.77 %
6.0
2.42 %
— %

$

1.78 

$

1.71 

$

85.83 %
5.9
2.52 %
— %

3.43 

Balance, December 31, 2018
     Granted
     Exercised
     Forfeited
Balance, December 31, 2019
     Granted
     Exercised
     Forfeited

Balance, December 31, 2020
Exercisable at December 31, 2020
Vested or expected to vest at December 31, 2020

Number of
Options
Outstanding

Weighted-
Average
Exercise Price

Weighted-
Average
Remaining
Contractual
Life (in Years)

Total Intrinsic
Value

6,429,638  $
4,029,200 
(19,284)
(2,049,250)
8,390,304  $
3,501,080 
(409,988)
(2,575,125)
8,906,271  $
4,490,813  $
8,366,467  $

12.41 
2.31 
2.21 
9.26 
8.36 
2.37 
2.41 
11.80 

5.28 
8.09 
5.47 

7.37
— 
— 
— 
7.47
— 
— 
— 

7.52 $
6.31 $
7.43 $

15,588 
4,923 
14,233 

As of December 31, 2020, there was approximately $6.4 million of total unrecognized compensation cost related to non-vested stock options granted under
the 2013 Plan. That compensation cost is expected to be recognized over a weighted-average period of approximately 2.51 years.

Other information regarding the Company’s stock options is as follows (in thousands, except per share data):

Weighted-average grant-date fair value per share of options granted
Total intrinsic value of options exercised
Total fair value of shares vested

2020

Years Ended December 31,
2019

2018

$
$
$

1.78  $
355  $
4,188  $

1.71  $
10  $
6,798  $

3.43 
31 
11,021 

91

 
 
 
The following table summarizes, at December 31, 2020, by price range: (1) for stock option awards outstanding under the 2013 Plan, the number of stock
option awards outstanding, their weighted-average remaining life and their weighted-average exercise price; and (2) for stock option awards exercisable
under the 2013 Plan, the number of stock option awards exercisable and their weighted-average exercise price:

Exercise Price Range ($)
1.37 to 7.57
7.58 to 8.06
8.07 to 18.75
18.76 to 53.74

1.37 to 53.74

Outstanding
Weighted-
Average
Remaining
Contractual Life
(in years)

Exercisable

Weighted-
Average Exercise
Price

Number

Weighted-
Average Exercise
Price

8.21 $
3.72
3.07
3.17

7.51 $

2.81 
8.06 
18.75 
35.61 

5.28 

3,191,993  $
684,700 
103,420 
510,700 
4,490,813  $

3.35 
8.06 
18.75 
35.61 

8.09 

Number

7,607,451 
684,700 
103,420 
510,700 
8,906,271 

In April 2019, the Company granted stock options covering a total of 1,750,000 shares in connection with the hiring of its Chief Executive Officer and
Chief Business Officer. These grants were non-qualified stock options, have a 10-year term and will vest over four years, with one-fourth vesting on the
one-year  anniversary  of  the  grant  date  and  remaining  three-fourths  vesting  over  the  following  three  years  in  equal  monthly  installments.  These  stock
options  are  subject  to  the  terms  of  the  2013  Plan,  but  were  granted  outside  of  the  2013  Plan,  as  they  constituted  inducement  grants  in  accordance  with
Nasdaq Stock Market rules.

Employee Stock Purchase Plan

In  February  2013,  the  Company’s  board  of  directors  adopted  the  2013  Employee  Stock  Purchase  Plan  (ESPP),  which  was  subsequently  ratified  by
stockholders and became effective in April 2013. The purpose of the ESPP is to retain the services of new employees and secure the services of new and
existing employees while providing incentives for such individuals to exert maximum efforts toward the Company’s success and that of its affiliates. The
ESPP  initially  authorized  the  issuance  of  704,225  shares  of  common  stock  pursuant  to  purchase  rights  granted  to  the  Company’s  employees  or  to
employees of any of its designated affiliates. The number of shares of common stock reserved for issuance will automatically increase on January 1 of each
calendar  year,  from  January  1,  2014  through  January  1,  2023  by  the  least  of  (a)  1%  of  the  total  number  of  shares  of  common  stock  outstanding  on
December 31 of the preceding calendar year, (b) 422,535 shares, or (c) a number determined by the Company’s board of directors that is less than (a) and
(b). The ESPP is intended to qualify as an “employee stock purchase plan” within the meaning of Section 423 of the Internal Revenue Code of 1986. The
common stock reserved for future issuance under the ESPP was automatically increased by an additional 422,535 shares on January 1, 2019 and 2020,
bringing the total number of shares of common stock that may be purchased under the ESPP to 3,071,331 and 3,493,866, respectively.

The  Company  has  reserved  a  total  of  3,493,866  shares  of  common  stock  to  be  purchased  under  the  ESPP,  of  which  2,419,213  and  2,333,750  shares
remained available for purchase at December 31, 2020 and 2019, respectively. Eligible employees may authorize an amount up to 15% of their salary to
purchase common stock at the lower of a 15% discount to the beginning price of their offering period or a 15% discount to the ending price of each six-
month purchase interval. The ESPP also provides for an automatic reset feature to start participants on a new twenty-four-month participation period in the
event that the common stock market value on a purchase date is less than the common stock value on the first day of the twenty-four month offering period.
The Company issued 337,072 and 209,075 shares of common stock pursuant to the ESPP for the year ended December 31, 2020 and 2019, respectively.
Compensation expense for purchase rights under the ESPP related to the purchase discount and the “look-back” option were determined using a Black-
Scholes option pricing model.

92

The following table illustrates the assumptions for the Black-Scholes model used in determining the fair value of the ESPP purchase rights:

Expected volatility
Expected term (in years)
Weighted-average risk-free interest rate
Expected dividend yield
Weighted-average option value per share

Years Ended December 31,
2019

2018

2020

75.39 %
1.28
0.37 %
— %

57.22 %
1.23
2.36 %
— %

$

0.93 

$

1.00 

$

44.01 %
1.23
2.56 %
— %

1.36 

As of December 31, 2020, the Company had a liability of $0.2 million representing employees' contributions to the ESPP.

Restricted Stock Units

For the years ended December 31, 2020 and 2019, the Company issued RSUs to certain employees and consultants which vest based on service criteria.
When vested, the RSU represents the right to be issued the number of shares of the Company’s common stock that is equal to the number of RSUs granted.
The  grant  date  fair  value  for  RSUs  is  based  upon  the  market  price  of  the  Company’s  common  stock  on  the  date  of  the  grant.  The  fair  value  is  then
amortized  to  compensation  expense  over  the  requisite  service  period  or  vesting  term.  For  the  years  ended  December  31,  2020  and  2019,  the  Company
issued 478,966 and 626,375 shares of common stock pursuant to the vesting of RSUs, respectively.

A summary of activity related to the Company’s RSUs is as follows:

Balance, December 31, 2019

Granted
Share issuance
Forfeited

Balance, December 31, 2020

Number of
Restricted
Stock Units
Outstanding

Weighted-Average
Grant-Date Fair
Value

1,561,237  $
215,680 
(478,966)
(164,902)
1,133,049  $

2.80 
2.20 
2.99 
2.73 

2.61 

The  total  unrecognized  compensation  cost  related  to  the  non-vested  RSUs  as  of  December  31,  2020  was  $1.9  million  and  will  be  recognized  over  a
weighted average period of approximately 2.60 years.

Stock-based Compensation

For  awards  with  only  service  conditions  and  graded-vesting  features,  the  Company  recognizes  compensation  expense  on  a  straight-line  basis  over  the
requisite service period. Total stock-based compensation expense was as follows (in thousands): 

Income Statement Classification:
Research and development expense
General and administrative expense

          Total stock-based compensation expense

Years Ended December 31,
2019

2020

2018

$

$

2,969  $
2,599 
5,568  $

4,089  $
5,439 
9,528  $

5,343 
7,731 
13,074 

Cash  received  from  exercises  under  all  share-based  payment  arrangements  for  2020,  2019  and  2018  was  $1.4  million,  $0.4  million  and  $0.7  million,
respectively. There was no actual tax benefit realized for the tax deductions from exercises of the share-based payment arrangements during 2020, 2019 or
2018.

On February 5, 2019, Dr. M. Michelle Berrey, the Company’s then President and Chief Executive Officer, resigned. The Company entered into a severance
agreement  with  Dr.  Berrey  that  provides  for  severance  benefits  to  her  in  connection  with  her  resignation.  Among  other  benefits,  Dr.  Berrey  received
accelerated vesting of her outstanding stock options and RSUs as if she

93

 
 
 
 
 
had continued service for an additional 15-month period. In addition, Dr. Berrey's vested options were modified to extend her exercise period to May 5,
2020. The Company recorded a charge of $1.8 million to compensation expense on the date of her resignation related to the acceleration of vesting and the
modifications of her outstanding stock options and RSUs.

In  May  2019,  related  to  the  Company’s  reduction  in  workforce  further  discussed  in  Note  8,  certain  outstanding  stock  option  and  RSU  grants  received
accelerated vesting as if the service period of the terminated employee continued for an additional 12-month period. In addition, certain vested options were
modified  to  extend  their  exercise  period  for  12  months.  The  Company  recorded  a  charge  of  $0.7  million  to  compensation  expense  on  the  date  of  the
reduction in workforce related to the acceleration of vesting and the modifications of the outstanding stock options and RSUs.

At-The-Market Equity Offering

On November 8, 2017, the Company entered into an at-the-market (ATM) sales agreement with Cowen and Company, LLC to sell up to $75 million of the
Company’s common stock under a shelf registration statement filed in November 2017. As of December 31, 2018, the Company had sold an aggregate of
2.8 million shares of common stock pursuant to the ATM at a weighted average price per share of $4.00 for net offering proceeds of $10.9 million. We did
not sell any shares of our common stock subsequent to 2018 and we terminated the ATM sales agreement with Cowen and Company, LLC in July 2020.

 (the Jefferies Sales Agreement) with Jefferies LLC, as agent, pursuant to which
On August 10, 2020, we entered into an Open Market Sale Agreement
we may offer and sell, from time to time through Jefferies, up to $75 million of shares of our common stock. Sales of our common stock made pursuant to
the Jefferies Sales Agreement, if any, will be made under our shelf registration statement on Form S-3 (File No. 333-244146), which was declared effective
by the SEC on August 17, 2020. We have not sold any shares of our common stock under the Jefferies Sales Agreement.

SM

Note 6. Income Taxes

No income tax expense or benefit has been recorded for the years ended December 31, 2020, 2019 or 2018. This is due to the establishment of a valuation
allowance against the deferred tax assets generated during those periods. At December 31, 2020, the Company has concluded that it is more likely than not
that the Company may not realize the benefit of its deferred tax assets due to its history of losses. Accordingly, the net deferred tax assets have been fully
reserved.

A reconciliation of the difference between the benefit for income taxes and income taxes at the statutory U.S. federal income tax rate is as follows for the
years ended December 31, 2020, 2019, and 2018 (in thousands, except percentages):

2020

2019

2018

Amount

% of Pretax
Earnings

Amount

% of Pretax
Earnings

Amount

% of Pretax
Earnings

Income tax benefit at statutory rate
State income taxes
Research and development credits
Foreign rate differential
Permanent items
Provision to return adjustments
Effect of change in federal tax rate
Effect of change in state tax rate
Removal of excess tax benefit
Increase in unrecognized tax benefits
Current year forfeitures
Change in valuation allowance

Net benefit

$

$

(9,140)
(138)
(1,088)
— 
505 
81 
— 
1,139 
— 
272 
4,026 
4,343 
— 

(23,641)
(1,596)
(1,190)
— 
696 
937 
— 
(117)
— 
298 
— 
24,613 
— 

21.0 % $
0.3 %
2.5 %
— %
(1.2)%
(0.2)%
— %
(2.6)%
— %
(0.6)%
(9.2)%
(10.0)%

— % $

94

21.0 % $
1.4 %
1.1 %
— %
(0.6)%
(0.8)%
— %
0.1 %
— %
(0.3)%
— %
(21.9)%

— % $

(14,590)
(792)
(1,798)
2 
1,164 
621 
— 
151 
— 
450 
— 
14,792 
— 

21.0 %
1.1 %
2.6 %
— %
(1.7)%
(0.9)%
— %
(0.2)%
— %
(0.7)%
— %
(21.2)%
— %

 
 
The components of deferred tax assets and liabilities at December 31, 2020 and 2019 were as follows (in thousands):

December 31,

2020

2019

Deferred tax assets:
     Domestic net operating loss carryforwards
     Research and development expenses
     Capitalized Section 174 expenses
     License fees
     Research and development credits
     Capital Loss Carryforwards
     Accrued bonuses
     Share-based compensation
     Other
          Total gross deferred tax assets
          Valuation allowance
               Total deferred tax assets
Deferred tax liabilities:
     Right-of-use asset
               Total deferred tax liabilities

$

123,381  $
293 
— 
12,556 
15,498 
403 
943 
3,541 
961 
157,576 
(156,973)
603 

(603)
(603)

                    Total deferred tax assets and liabilities, net

$

—  $

114,292 
419 
24 
14,176 
14,682 
431 
751 
7,557 
456 
152,788 
(152,629)
159 

(159)
(159)
— 

At December 31, 2020, the Company had net operating loss carryforwards for federal and state tax purposes of approximately $551.0 million and $388.5
million, respectively. At December 31, 2019, the Company had net operating loss carryforwards for federal and state tax purposes of approximately $508.1
million and $384.3 million, respectively. Federal losses of $408.0 million begin to expire in 2021 and $143.0 million of the federal losses carryforward
indefinitely. The state losses begin to expire in 2021. In addition, the Company has tax credit carryforwards for federal tax purposes of approximately $20.7
million as of December 31, 2020, which begin to expire in 2022. The Company also has capital loss carryforwards for federal tax purposes of $0.4 million,
which  begin  to  expire  in  2022.  The  future  utilization  of  net  operating  loss  and  tax  credit  carryforwards  may  be  limited  due  to  changes  in  ownership.
Management has recorded a valuation allowance for all of the deferred tax assets due to the uncertainty of future taxable income.

The  Company  incorporated  a  subsidiary  in  the  United  Kingdom  in  2014.  However,  the  subsidiary  had  zero  activity  in  2020  and  as  such,  has  no
undistributed earnings.

The Company incorporated a subsidiary in Ireland during 2018. However, the subsidiary had no activity during both 2019 and 2020 and as such, has no
undistributed earnings.

In general, if the Company experiences a greater than 50% aggregate change in ownership of certain significant stockholders over a three-year period (a
Section 382 ownership change), utilization of its pre-change net operating loss carryforwards is subject to an annual limitation under Section 382 of the
Internal  Revenue  Code  of  1986,  as  amended  (and  similar  state  laws).  The  annual  limitation  generally  is  determined  by  multiplying  the  value  of  the
Company’s stock at the time of such ownership change (subject to certain adjustments) by the applicable long-term tax-exempt rate. Such limitations may
result in expiration of a portion of the net operating loss carryforwards before utilization and may be substantial. The ability of the Company to use its net
operating loss carryforwards may be limited or lost if the Company experiences a Section 382 ownership change in connection with offerings or as a result
of future changes in its stock ownership. Losses from a specific period may be subject to multiple limitations and would generally be limited by the lowest
of those limitations.

The Company has determined that a Section 382 ownership change occurred in 2007, and as such, losses incurred prior to that date are subject to an annual
limitation of at least $762,000. The Company evaluated Section 382 ownership changes subsequent to 2007 through September 30, 2020 and concluded
that a Section 382 ownership change occurred in 2013 as a result of the initial public offering. As such, losses incurred prior to that date are subject to an
annual limitation of at least $6.7 million.

95

 
 
 
 
 
 
The Company has determined that there may be a future limitation on the Company’s ability to utilize its entire federal R&D credit carryover. Therefore,
the Company recognized an uncertain tax benefit associated with the federal R&D credit carryover during the years ended December 31, 2020 and 2019, as
follows (in thousands):

Balance at December 31, 2018
     Increases related to 2019
     Increases related to prior periods
Balance at December 31, 2019
     Increases related to 2020
     Increases related to prior periods

Balance at December 31, 2020

$

$

3,726 
297 
— 
4,023 
272 
— 
4,295 

The Company has determined that it had no other material uncertain tax benefits for the year ended December 31, 2020. As of January 1, 2020, due to the
carry  forward  of  unutilized  net  operating  losses  and  research  and  development  credits,  the  Company  is  subject  to  U.S.  federal  and  state  income  tax
examinations for the tax years 2000 through 2020. The Company recognizes accrued interest related to unrecognized tax benefits in interest expense and
penalties in operating expense. No amounts were accrued for the payment of interest and penalties at December 31, 2020.

The Tax Cuts and Jobs Act implemented a territorial tax system. Under the territorial tax system, in general, the Company’s foreign earnings will no longer
be subject to tax in the U.S. As part of the transition to the territorial tax system the Tax Act included a mandatory deemed repatriation of all undistributed
foreign earnings that are subject to a U.S. income tax. The Company has determined that the deemed repatriation applicable to the year ended December
31, 2017 does not result in an additional U.S. income tax liability as it has no undistributed foreign earnings.

The Tax Act subjects a US shareholder to tax on global intangible low-taxed income (GILTI) earned by certain foreign subsidiaries. The FASB Staff Q&A,
Topic 740, No. 5, Accounting for Global Intangible Low-Taxed Income, states that an entity can make an accounting policy election to either recognized
deferred taxes for temporary basis differences expected to reverse as GILTI in future years or to provide for the tax expense related to GILTI in the year the
tax is incurred as a period expense only. The Company has elected to account for GILTI in the year the tax is incurred. The Company does not have a
GILTI inclusion in 2018, 2019 or 2020; therefore, no GILTI tax has been recorded for the years ended December 31, 2019 and 2020.

The SEC staff issued Staff Accounting Bulletin No. 118, Income Tax Accounting Implications of the Tax Cuts and Jobs Act (SAB 118) which allows the
Company  to  record  provisional  amounts  during  a  measurement  period  which  is  similar  to  the  measurement  period  used  when  accounting  for  business
combinations. At December 31, 2017 provisional amounts were recorded related to deferred taxes for stock compensation and the deferred rate change. At
December 31, 2018 the measurement period has ended and the Company's accounting related to the Tax Act is complete. The Company did not make any
measurement-period adjustments related to the provisional items recorded as of December 31, 2017.

Note 7. Significant Agreements

Biomedical Advanced Research and Development Authority (BARDA)

In February 2011, the Company entered into a contract with BARDA for the advanced development of BCV as a medical countermeasure in the event of a
smallpox release. Under the contract, BARDA will reimburse the Company, plus pay a fixed fee, for the research and development of BCV as a broad-
spectrum  therapeutic  antiviral  for  the  treatment  of  smallpox  infections.  The  contract  consists  of  an  initial  performance  period,  referred  to  as  the  base
performance segment, plus up to four extension periods, referred to as option segments, of which all have been exercised. Under the contract as currently in
effect, the Company may receive up to $75.8 million in expense reimbursement and $5.3 million in fees.

The Company is currently performing under the fourth option segment of the contract during which the Company may receive up to a total of $4.6 million
in expense reimbursement and fees. The second and third option segments were completed on August 20, 2020. The fourth option segment is scheduled to
end on April 30, 2021. Of the $75.8 million in expense reimbursement and $5.3 million in fees that the Company may receive, approximately $78.9 million
in  expense  reimbursement  and  fees  has  been  funded.  As  of  December  31,  2020,  of  the  total  funding  the  Company  had  invoiced  an  aggregate  of  $75.5
million with respect to the base performance segment and the first four extension periods. For the years ended December 31, 2020, 2019, and 2018, the
Company recognized revenue under this contract of $5.3 million, $7.6 million and $7.2 million, respectively.

96

License and Development Agreement with Cantex Pharmaceuticals, Inc.

On July 26, 2019, the Company entered into a License and Development Agreement with Cantex Pharmaceuticals, Inc. (Cantex) pursuant to which the
Company  acquired  exclusive  worldwide  rights  to  develop  and  commercialize,  for  any  and  all  uses,  a  glycosaminoglycan  compound  known  as  DSTAT,
which is currently being studied for the treatment of acute myeloid leukemia. Under the terms of the license agreement, the Company is responsible for,
and  bears  the  future  costs  of,  worldwide  development  and  commercialization  of  DSTAT.  In  connection  with  the  transaction,  Cantex  assigned  to  the
Company all of its rights under its DSTAT supply agreements, including its bulk API agreement with Scientific Protein Laboratories LLC (SPL), pursuant
to which SPL will exclusively produce DSTAT for the Company through October 2040.

In consideration for the license rights, the Company made an upfront cash payment of $30.0 million to Cantex and issued to Cantex 10.0 million shares of
its  common  stock.  For  the  twelve  months  ended  December  31,  2019,  the  Company  recognized  $65.0  million  of  acquired  in-process  research  and
development expenses for the $30.0 million upfront cash payment, the fair value of the 10.0 million shares of common stock issued to Cantex and $0.1
million  of  transaction  costs.  The  license  agreement  obligates  the  Company  to  pay  Cantex  regulatory  milestone  payments  of  up  to  $202.5  million  upon
receipt of product approvals in the United States, the European Union and Japan, and sales milestone payments of up to $385.0 million upon achievement
of specified net sales levels. The Company also agreed to pay Cantex tiered royalties based on percentages of net sales beginning at 10% and not to exceed
the high-teens.

SymBio Pharmaceuticals

On  September  30,  2019,  the  Company  entered  into  a  license  agreement  with  Symbio  for  the  exclusive  worldwide  rights  to  develop,  manufacture  and
commercialize  BCV  for  all  human  indications,  excluding  the  prevention  and  treatment  of  orthopoxviruses,  including  smallpox.  Under  the  terms  of  the
license agreement, SymBio will be responsible for, and bear the future costs of, worldwide development and commercialization of BCV in the licensed
indications. Either party may terminate the license agreement upon the occurrence of a material breach by the other party (subject to standard cure periods),
or upon certain events involving the bankruptcy or insolvency of the other party. SymBio may also terminate the license agreement without cause on a
country-by-country basis upon ninety days prior notice.

In exchange for the license to SymBio under the Company's BCV rights, the Company received an upfront payment of $5.0 million in October 2019. In
addition, the Company is eligible to receive up to $180.0 million in clinical, regulatory and commercial milestones worldwide, as well as low double-digit
royalties based on net sales of BCV. Since entering into the license agreement in September 2019, the Company has recognized all of the $5.0 million of
revenue related to the upfront payment.

Note 8. Restructuring Costs

In May 2019, the Company made the decision to discontinue the development of oral and IV BCV development programs for the treatment of Adenovirus
(AdV) in stem-cell transplant (HCT) patients. The Company’s development efforts with respect to BCV are now focused on the treatment of smallpox. As
a result, the Company restructured its operations, which included a reduction in workforce of 43 full-time employees and the accrual of expenses to close-
out the clinical trials for the oral and IV development programs of BCV in AdV (study 210, study 211, AdAPT) and other supportive BCV development
programs. The Company recorded charges for one-time employee termination benefits of $3.3 million, contract close-out costs of $2.0 million, other BCV
development costs of $0.3 million, and losses on disposals of fixed assets of $0.3 million during the twelve months ended December 31, 2019. The $2.0
million of contract close-out costs were recorded through an increase in liabilities of $1.5 million with the remainder recognized through the expensing of
prepaid  balances.  As  of  December  31,  2019,  the  Company  had  a  clinical  trial  accrual  balance  related  to  the  AdAPT,  210  and  211  trial  terminations  of
$27,000 and other development costs accrual balance of $0.1 million. As of December 31, 2019, the Company had a severance accrual balance of $0.2
million.

97

The following table summarizes the restructuring charges (in thousands) recorded for the twelve months ended December 31, 2019:

Employee
Termination
Benefits

Clinical Trial
Close-out Costs

Other
Development
Costs

Fixed Asset
Disposals

Total

Research and development
General and administrative
Interest income and other, net

$

Total restructuring expenses $

1,437  $
1,909 
— 
3,346  $

2,021  $
— 
— 
2,021  $

339  $
— 
— 
339  $

—  $
— 
250 
250  $

3,797 
1,909 
250 
5,956 

The following table sets forth the accrual activity for employee termination benefits and contract close-out costs (in thousands) for the twelve months ended
December 31, 2019. No additional charges are expected to be incurred.

Balance at January 1, 2019
Accruals
Revised estimates
Payments

Balance at December 31, 2019

Employee
Termination
Benefits

Clinical Trial
Close-out Costs

Other
Development
Costs

Fixed Asset
Disposals

Total

$

$

—  $

—  $

3,335 
11 
(3,163)

2,131 
(621)
(1,483)

183  $

27  $

—  $
315 
24 
(229)
110  $

—  $
— 
250 
(250)

—  $

— 
5,781 
(336)
(5,125)
320 

The following table sets forth the accrual activity for employee termination benefits and contract close-out costs (in thousands) for the twelve months ended
December 31, 2020.

Employee Termination
Benefits

Clinical Trial Close-
out Costs

Other Development
Costs

Total

Balance at December 31, 2019

Revised estimates
Payments

Balance at December 31, 2020

$

$

183  $
— 
(183)

—  $

27  $
(23)
(4)
—  $

110  $
(10)
(100)

—  $

320 
(33)
(287)
— 

For the twelve months ended December 31, 2020, the revised accrual estimates resulted in a decrease to research and development expenses of $33,000.
Additionally, during the twelve ended December 31, 2020, refunds of unused deposits of $1.3 million were received, which were previously recorded in
prepaid expenses and other current assets on the Consolidated Balance Sheet.

98

Note 9. Selected Quarterly Financial Data (Unaudited)

The following financial information reflects all normal recurring adjustments, which are, in the opinion of management, necessary for a fair statement of
the results of the interim periods. Summarized quarterly data for 2020 and 2019 are as follows (in thousands, except share and per share data):

Revenue
Operating loss
Net loss
Net loss per share, basic and diluted
Weighted-average shares outstanding, basic and diluted

Revenue
Operating loss
Net loss
Net loss per share, basic and diluted
Weighted-average shares outstanding, basic and diluted

2020 Quarters

$

$

$

$

Fourth

Third

Second

1,120  $

1,609  $

1,402  $

(11,757)
(11,675)

(11,560)
(11,411)

(10,286)
(10,016)

(0.19) $

(0.18) $

(0.16) $

62,702,181 

62,242,456 

62,042,778 

2019 Quarters

Fourth

Third

Second

6,767  $
(3,873)
(3,503)

(0.06) $

1,958  $

1,438  $

(74,564)
(73,730)

(18,701)
(17,650)

(1.26) $

(0.35) $

61,385,616 

58,457,110 

51,130,104 

First

1,241 
(10,913)
(10,420)
(0.17)
61,742,035 

First

2,356 
(18,845)
(17,693)
(0.35)
50,887,221 

Net  loss  per  share  is  computed  independently  for  each  of  the  quarters  presented.  Therefore,  the  sum  of  the  quarterly  per  share  calculations  will  not
necessarily equal the annual per share calculation. Diluted weighted-average shares outstanding are identical to basic weighted-average shares outstanding
and diluted net loss per share is identical to basic net loss per share for all quarters of 2020 and 2019.

Note 10. Subsequent Events

The  Company  has  evaluated  subsequent  events  through  the  issuance  date  of  these  financial  statements  to  ensure  that  this  filing  includes  appropriate
disclosure of events both recognized in the financial statements as of December 31, 2020, and events which occurred subsequently but were not recognized
in the financial statements.

On  January  7,  2021,  the  Company,  Ocean  Merger  Sub,  Inc.,  a  Delaware  corporation  and  wholly-owned  subsidiary  of  the  Company  (Merger  Sub),
Oncoceutics,  Inc.,  a  Delaware  corporation  (Oncoceutics),  and  Fortis  Advisors,  LLC  solely  in  its  capacity  as  representative  of  the  securityholders  of
Oncoceutics  (the  Securityholders’  Representative),  entered  into  an  Agreement  and  Plan  of  Merger  (the  Merger  Agreement).  Concurrently  with  the
execution of the Merger Agreement, Merger Sub merged with and into Oncoceutics (the Merger) whereupon the separate corporate existence of Merger
Sub ceased, with Oncoceutics continuing as the surviving corporation of the Merger as a wholly-owned subsidiary of the Company.
As  consideration  for  the  merger,  the  Company  (a)  paid  an  upfront  cash  payment  of  approximately  $25.0  million,  (b)  issued  an  aggregate  of  8,723,769
shares of the Company's common stock, (c) issued a promissory note to Fortis Advisors, LLC in its capacity as representative of the securityholders of
Oncoceutics in the principal amount of $14.0 million (the Seller Note), to be paid in cash, subject to the terms and conditions of the Merger Agreement and
the  Seller  Note,  upon  the  one  year  anniversary  of  the  closing  of  the  Merger,  and  (d)  agreed  to  make  contingent  payments  up  to  an  aggregate  of
$360.0 million based on the achievement of certain development, regulatory and commercialization events as set forth in the Merger Agreement, as well as
additional tiered royalty payments based upon future net sales of ONC 201 and ONC 206 products, subject to certain reductions as set forth in the Merger
Agreement, and a contingent payment in the event the Company receives any proceeds from the sale of a rare pediatric disease priority review voucher
based  on  Oncoceutics'  products.  The  closing  payment  may  be  adjusted  after  the  closing,  pursuant  to  procedures  set  forth  in  the  Merger  Agreement,  in
connection with the finalization of the cash, transaction expenses, debt and working capital amounts at closing. This transaction will be accounted for as an
asset acquisition.

The Merger Agreement contains customary representations, warranties and covenants and indemnification provisions. The Company has certain diligence
obligations with respect to further development and commercialization of the Oncoceutics product candidates.

99

 
 
 
 
On January 20, 2021, we entered into an underwriting agreement (the “Underwriting Agreement”) with Jefferies LLC and Cowen and Company, LLC, as
representatives  of  the  several  underwriters  named  therein  (collectively,  the  “Underwriters”),  relating  to  the  issuance  and  sale  of  11,765,000  shares  (the
“Shares”) of the Company’s common stock, par value $0.001 per share (the “Common Stock”). The price to the public in this offering was $8.50 per share,
and the Underwriters agreed to purchase the Shares from the Company pursuant to the Underwriting Agreement at a price of $7.99 per share. Under the
terms of the Underwriting Agreement, the Company granted the Underwriters a 30-day option to purchase up to 1,764,750 additional shares of Common
Stock at the public offering price. The net proceeds to the Company from this offering was approximately $107.8 million, as the Underwriters’ option to
purchase additional shares was exercised in full, after deducting underwriting discounts and commissions and estimated offering expenses payable by the
Company. The offering closed on January 25, 2021.

ITEM. 9    CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

None.

ITEM 9A.    CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

Our principal executive officer and principal financial officer, after evaluating the effectiveness of our disclosure controls and procedures (as defined in
Rules  13a-15(e)  and  15d-15(e)  of  the  Securities  Exchange  Act  of  1934,  as  amended,  or  Exchange  Act)  as  of  December  31,  2020,  have  concluded  that,
based on such evaluation, our disclosure controls and procedures were effective to ensure that information required to be disclosed by us in the reports we
file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the rules and forms of the SEC,
and is accumulated and communicated to our management, including our principal executive and principal financial officers, or persons performing similar
functions, as appropriate to allow timely decisions regarding required disclosure.

Management’s Report on Internal Control Over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act
Rules  13a-15(f)  and  15d-15(f).  Our  internal  control  system  was  designed  to  provide  reasonable  assurance  to  our  management  and  Board  of  Directors
regarding the preparation and fair presentation of published financial statements.

Our internal control over financial reporting includes those 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;

i.
ii. provide  reasonable  assurance  that  transactions  are  recorded  as  necessary  to  permit  preparations  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

iii. 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 financial statements.

All internal control systems, no matter how well designed, have inherent limitations. Therefore, even those systems determined to be effective can provide
only  reasonable  assurance  with  respect  to  financial  statement  preparation  and  presentation.  In  making  the  assessment  of  internal  controls  over  financial
reporting,  our  management  used  the  criteria  issued  by  the  Committee  of  Sponsoring  Organizations  of  the  Treadway  Commission  (COSO)  in  Internal
Control-Integrated Framework (2013 framework). Based on that assessment and those criteria, management has concluded that our internal control over
financial reporting was effective as of December 31, 2020.

Ernst & Young LLP, the independent registered public accounting firm that audited our financial statements included in this Annual Report, has issued an
attestation report on the Company’s internal control over financial reporting, a copy of which appears in Item 8 of this Annual Report.

Changes in Internal Control Over Financial Reporting

No change in our internal control over financial reporting (as defined in Rules 13a-15(d) and 15d-15(d) under the Exchange Act) occurred during the last
fiscal quarter that has materially affected, or is reasonably likely to materially affect, our internal

100

 
control over financial reporting.

ITEM 9B.    OTHER INFORMATION

On February 24, 2021, Edward F. Greissing, Jr., a member of the Board of Directors of Chimerix, Inc. (the “Company”), notified the Company that he does
not intend to stand for reelection as a Class II Director at the Company’s 2021 annual meeting of stockholders. Mr. Greissing’s intention not to stand for
reelection was not the result of any dispute or disagreement with the Company or the Company’s Board of Directors on any matter relating to the
operations, policies or practices of the Company.

101

ITEM 10.     DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

PART III

The information required by this item and not set forth below will be set forth in the section headed “Election of Directors” and “Executive Officers” in our
Proxy Statement for our 2021 Annual Meeting of Stockholders (Proxy Statement), to be filed with the SEC within 120 days after the end of the fiscal year
ended December 31, 2020, and is incorporated herein by reference.

We  have  adopted  a  code  of  ethics  for  directors,  officers  (including  our  principal  executive  officer,  principal  financial  officer  and  principal  accounting
officer)  and  employees,  known  as  the  Code  of  Business  Conduct  and  Ethics.  The  Code  of  Business  Conduct  and  Ethics  is  available  on  our  website  at
http://www.chimerix.com under the Corporate Governance section of our Investor Relations page. We will promptly disclose on our website (i) the nature
of  any  amendment  to  the  policy  that  applies  to  our  principal  executive  officer,  principal  financial  officer,  principal  accounting  officer  or  controller,  or
persons performing similar functions and (ii) the nature of any waiver, including an implicit waiver, from a provision of the policy that is granted to one of
these specified individuals that is required to be disclosed pursuant to SEC rules and regulations, the name of such person who is granted the waiver and the
date of the waiver.

ITEM 11.    EXECUTIVE COMPENSATION

The information required by this item will be set forth in the section headed “Executive Compensation” in our Proxy Statement 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 will be set forth in the section headed “Security Ownership of Certain Beneficial Owners and Management” in our
Proxy Statement and is incorporated herein by reference.

The information required by Item 201(d) of Regulation S-K will be set forth in the section headed “Executive Compensation” in our Proxy Statement and
is incorporated herein by reference.

ITEM 13.    CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE

The  information  required  by  this  item  will  be  set  forth  in  the  section  headed  “Transactions  With  Related  Persons”  in  our  Proxy  Statement  and  is
incorporated herein by reference.

ITEM 14.    PRINCIPAL ACCOUNTING FEES AND SERVICES

The information required by this item will be set forth in the section headed “Ratification of Selection of Independent Registered Public Accounting Firm”
in our Proxy Statement and is incorporated herein by reference.

102

ITEM 15.    EXHIBITS, FINANCIAL STATEMENT SCHEDULES

PART IV

1. Financial Statements. The financial statements and reports of independent registered public accounting firm are filed as part of this Annual Report (see
"Index to Consolidated Financial Statements" at Item 8).

2. Financial Statement Schedules. No financial statement schedules are included because the information is either provided in the consolidated financial
statements, is not required under the instructions or is immaterial, and such schedules, therefore have been omitted.

3. Exhibits. The following exhibits have been or are being filed herewith and are numbered in accordance with Item 601 of Regulation S-K:

EXHIBIT INDEX

Exhibit
Number
(33)
2.1** 
(1)
3.1 
3.2 
4.1 
10.1+ 

(1)

(1)

(1)

10.2+ 

(1)

10.3+ 

(1)

(29)

(24)

(10)

(15)

(2)

(1)

10.4+
10.5+ 
10.6+ 
10.7+ 
10.8+ 
10.9+ 
10.10+ 
(1)
10.11 
10.12 
10.13 
10.14 
10.15 
10.16 

(8)

(5)

(4)

(15)

(16)

(10)

10.17* 

(1)

10.18* 

(6)

Description of Document
Agreement and Plan of Merger, dated January 7, 2021, by and among the Registrant, Oncoceutics, Merger Sub
Amended and Restated Certificate of Incorporation of the Registrant.
Amended and Restated Bylaws of the Registrant.
Form of Common Stock Certificate of the Registrant.
Form of Indemnity Agreement by and between the Registrant and its directors and officers.
Chimerix, Inc. 2002 Equity Incentive Plan and Form of Stock Option Agreement, Notice of Exercise and Form of Stock Option
Grant Notice thereunder.
Chimerix, Inc. 2012 Equity Incentive Plan and Form of Stock Option Agreement, Notice of Exercise and Form of Stock Option
Grant Notice and Form of Restricted Stock Unit Award Agreement and Form of Restricted Stock Unit Award Grant Notice
thereunder.
Form of Stock Option Agreement, Notice of Exercise and Form of Stock Option Grant Notice and Form of Restricted Stock Unit
Award Agreement and Form of Restricted Stock Unit Award Grant Notice under Chimerix, Inc. 2013 Equity Incentive Plan.
Chimerix, Inc. 2013 Equity Incentive Plan, as amended.
Chimerix, Inc. 2013 Employee Stock Purchase Plan.
Chimerix, Inc. Non-Employee Director Compensation Policy.
Chimerix, Inc. Officer Severance Benefit Plan, as amended.
Directorship Offer Letter to Catherine L. Gilliss dated June 13, 2014.
Directorship Offer Letter to Patrick Machado dated May 30, 2014.
Office Lease by and between the Registrant and ACP 2505 Meridian LLC dated September 1, 2007, as amended.
Lease Agreement by and between the Registrant and Northwood RTC LLC dated March 10, 2014.
Fifth Amendment to Office Lease dated July 2, 2014 by and between the Registrant and AREP Meridian I LLC.
Sixth Amendment to Office Lease dated April 28, 2015 by and between the Registrant and IVC Meridian TT O, LLC.
Seventh Amendment to Office Lease dated March 10, 2017 by and between the Registrant and IVC Meridian TT O, LLC.
Eighth Amendment to Office Lease dated July 13, 2017 by and between the Registrant and IVC Meridian TT O, LLC.
Contract by and between the Registrant and the Biomedical Advanced Research and Development Authority of the United States
Department of Health and Human Services dated February 16, 2011, as amended.
Contract modification No. 14, dated May 30, 2013, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.

103

10.19* 

(7)

10.20* 

(7)

10.21 

(3)

10.22 

(10)

10.23* 

(4)

10.24 

(4)

10.25* 

(10)

10.26 

(10)

10.27 

(10)

10.28 

(10)

10.29 

(8)

10.30 

(9)

10.31 

(9)

10.32* 

(31)

10.33* 

(31)

10.34* 

(11)

10.35*

 (12)

10.36* 

(12)

Contract modification No. 15, dated August 28, 2013, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 16, dated December 10, 2013, to the contract by and between the Registrant and the Biomedical
Advanced Research and Development Authority of the United States Department of Health and Human Services dated February 16,
2011, as amended.
Contract modification No. 17, dated April 14, 2014, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 18, dated May 6, 2014, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 19, dated August 27, 2014, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 20, dated October 27, 2014, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 21, dated November 7, 2014, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 22, dated December 11, 2014, to the contract by and between the Registrant and the Biomedical
Advanced Research and Development Authority of the United States Department of Health and Human Services dated February 16,
2011, as amended.
Contract modification No. 23, dated December 22, 2014, to the contract by and between the Registrant and the Biomedical
Advanced Research and Development Authority of the United States Department of Health and Human Services dated February 16,
2011, as amended.
Contract modification No. 24, dated February 19, 2015, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 25, dated March 26, 2015, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 26, dated June 18, 2015, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 27, dated July 14, 2015, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 28, dated September 1, 2015, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 29, dated September 11, 2015, to the contract by and between the Registrant and the Biomedical
Advanced Research and Development Authority of the United States Department of Health and Human Services dated February 16,
2011, as amended.
Contract modification No. 30, dated November 12, 2015, to the contract by and between the Registrant and the Biomedical
Advanced Research and Development Authority of the United States Department of Health and Human Services dated February 16,
2011, as amended.
Contract modification No. 31, dated April 8, 2016, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 32, dated May 5, 2016, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.

104

10.37* 

(13)

10.38* 

(14)

10.39 

(15)

10.40 

(15)

10.41 

(16)

10.42 

(17)

10.43 

(17)

10.44 

(17)

10.45 

(18)

10.46 

(18)

10.47 

(18)

10.48 

(18)

10.49 

(20)

10.50 

(20)

10.51* 

(20)

10.52 

(20)

10.53* 

(20)

10.54* 

(21)

Contract modification No. 33, dated June 17, 2016, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 34, dated August 3, 2016, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 35, dated October 21, 2016, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 36, dated January 23, 2017, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 37, dated March 27, 2017, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 38, dated April 3, 2017, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 39, dated May 11, 2017, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 40, dated June 16, 2017, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 41, dated July 24, 2017, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 42, dated August 25, 2017, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 43, dated September 22, 2017, to the contract by and between the Registrant and the Biomedical
Advanced Research and Development Authority of the United States Department of Health and Human Services dated February 16,
2011, as amended.
Contract modification No. 44, dated September 28, 2017, to the contract by and between the Registrant and the Biomedical
Advanced Research and Development Authority of the United States Department of Health and Human Services dated February 16,
2011, as amended.
Contract modification No. 45, dated October 20, 2017, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 46, dated November 27, 2017, to the contract by and between the Registrant and the Biomedical
Advanced Research and Development Authority of the United States Department of Health and Human Services dated February 16,
2011, as amended.
Contract modification No. 47, dated December 21, 2017, to the contract by and between the Registrant and the Biomedical
Advanced Research and Development Authority of the United States Department of Health and Human Services dated February 16,
2011, as amended.
Contract modification No. 48, dated December 21, 2017, to the contract by and between the Registrant and the Biomedical
Advanced Research and Development Authority of the United States Department of Health and Human Services dated February 16,
2011, as amended.
Contract modification No. 49, dated February 27, 2018, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 50, dated March 20, 2018, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.

105

10.55* 

(22)

10.56* 

(22)

10.57 

(23)

10.58 

(24)

10.59* 

(24)

10.60 

(26)

10.61** 

(27)

10.62** 

(29)

10.63 

(30)

10.64** 

(30)

10.65** 

(30)

10.66 

(31)

10.67** 

(31)

10.68
10.69 

(19)

(20)

10.70 
10.71+ 
10.72+ 

(25)

(25)

(27)

10.73 
10.74** 

(28)

10.75** 
10.76** 

(28)

(28)

Contract modification No. 51, dated May 31, 2018, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 52, dated July 11, 2018, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 53, dated September 6, 2018, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 54, dated December 3, 2018, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 55, dated January 10, 2019, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 56, dated March 5, 2019, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 57, dated July 12, 2019, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 58, dated December 13, 2019, to the contract by and between the Registrant and the Biomedical
Advanced Research and Development Authority of the United States Department of Health and Human Services dated February 16,
2011, as amended.
Contract modification No. 59, dated May 11, 2020, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 60, dated June 17, 2020, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 61, dated July 28, 2020, to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Contract modification No. 62, dated September 11, 2020, to the contract by and between the Registrant and the Biomedical
Advanced Research and Development Authority of the United States Department of Health and Human Services dated February 16,
2011, as amended.
Contract modification No. 63, dated September 28, 2020 to the contract by and between the Registrant and the Biomedical
Advanced Research and Development Authority of the United States Department of Health and Human Services dated February 16,
2011, as amended.
Contract modification No. 64, dated January 26, 2021 to the contract by and between the Registrant and the Biomedical Advanced
Research and Development Authority of the United States Department of Health and Human Services dated February 16, 2011, as
amended.
Sales Agreement, dated November 8, 2017, by and between Chimerix, Inc and Cowen and Company, LLC.
First Amendment to Industrial Building Lease dated December 14, 2017 by and between Registrant and CLPF - Research Center,
LLC.
Employment Offer Letter to Michael Sherman dated April 2, 2019.
Employment Offer Letter to Michael Andriole dated April 4, 2019.
Form of Stock Option Grant Notice, Option Agreement and Notice of Exercise for Inducement Grant Outside of 2013 Equity
Incentive Plan.
License and Development Agreement, dated July 26, 2019, by and between the Registrant and Cantex Pharmaceuticals, Inc.
Supply Agreement, dated October 2, 2015, by and between the Registrant (as successor to Cantex Pharmaceuticals, Inc.) and
Scientific Protein Laboratories LLC.
License Agreement, dated September 30, 2019, by and between the Registrant and SymBio Pharmaceuticals Limited.

106

(30)

10.77 
10.78** 

(30)

10.79** 

(32)

10.80 

(33)

(34)

10.81 
23.1
24.1

31.1

31.2

32.1

32.2
101.INS
101.SCH
101.CAL
101.DEF
101.LAB
101.PRE
104

Ninth Amendment to Office Lease, dated June 24, 2020, by and between the Registrant and BRI 1875 Meridian, LLC.
Second Amendment to Lease Agreement, dated July 30, 2020, by and between the Registrant and CLPF-Research Center, LLC.
Amendment to the Supply Agreement, dated December 16, 2020, by and between Chimerix, Inc. and Scientific Protein
Laboratories, LLC.
Promissory Noted, dated January 7, 2021, by and between the Registrant and Fortis Advisors, LLC, solely in its capacity as
Securityholders’ Representative.
Underwriting Agreement, dated January 20, 2021, by and among the Registrant and Jefferies LLC and Cowen and Company, LLC,
as representatives of the several underwriters named therein.
Consent of Ernst & Young LLP, an Independent Registered Public Accounting Firm.
Power of Attorney. Reference is made to the signature page hereto.
Certification of Principal Executive Officer, pursuant to Rule 13a-14(a) or Rule 15d-14(a) of 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 Rule 13a-14(a) or Rule 15d-14(a) of 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.
XBRL Instance Document.
XBRL Taxonomy Extension Schema Document.
XBRL Taxonomy Extension Calculation Linkbase Document.
XBRL Taxonomy Extension Definition Linkbase Document.
XBRL Taxonomy Extension Label Linkbase Document.
XBRL Taxonomy Extension Presentation Linkbase Document.
Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101).

107

+

*

**
(1)
(2)
(3)

(4)
(5)

(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)

(14)
(15)
(16)
(17)
(18)
(19)
(20)
(21)
(22)

(23)
(24)
(25)

Indicates management contract or compensatory plan.

Confidential treatment has been granted with respect to certain portions of this exhibit. Omitted portions have been filed separately
with the SEC.
Certain confidential information contained in this exhibit, marked by brackets, has been omitted pursuant to Item 601 of Regulation
S-K.
Incorporated by reference to Chimerix, Inc.’s Registration Statement on Form S-1 (No. 333-187145), as amended.
Incorporated by reference to Chimerix, Inc.’s Current Report on Form 8-K (No. 001-35867) filed with the SEC on June 23, 2014.
Incorporated by reference to Chimerix, Inc.’s Quarterly Report on Form 10-Q (No. 001-35867) filed with the SEC on May 9, 2014.
Incorporated by reference to Chimerix, Inc.’s Quarterly Report on Form 10-Q (No. 001-35867) filed with the SEC on November 7,
2014.
Incorporated by reference to Chimerix, Inc.’s Current Report on Form 8-K (No. 001-35867) filed with the SEC on March 14, 2014.
Incorporated by reference to Chimerix, Inc.’s Quarterly Report on Form 10-Q (No. 001-35867) filed with the SEC on August 14,
2013.
Incorporated by reference to Chimerix, Inc.’s Annual Report on Form 10-K (No. 001-35867) filed with the SEC on March 7, 2014.
Incorporated by reference to Chimerix, Inc.'s Quarterly Report on Form 10-Q (No. 001-35867) filed with the SEC on May 11, 2015.
Incorporated by reference to Chimerix, Inc.'s Quarterly Report on Form 10-Q (No. 001-35867) filed with the SEC on August 6, 2015.
Incorporated by reference to Chimerix, Inc.’s Annual Report on Form 10-K (No. 001-35867) filed with the SEC on March 6, 2015.
Incorporated by reference to Chimerix, Inc.’s Annual Report on Form 10-K (No. 001-35867) filed with the SEC on February 29, 2016
Incorporated by reference to Chimerix, Inc.’s Quarterly Report on Form 10-Q (No. 001-35867) filed with the SEC on May 9, 2016.
Incorporated by reference to Chimerix, Inc.’s Quarterly Report on Form 10-Q (No. 001-35867) filed with the SEC on August 8, 2016.
Incorporated by reference to Chimerix, Inc.’s Quarterly Report on Form 10-Q (No. 001-35867) filed with the SEC on November 7,
2016.
Incorporated by reference to Chimerix, Inc.’s Annual Report on Form 10-K (No. 001-35867) filed with the SEC on March 2, 2017.
Incorporated by reference to Chimerix, Inc.’s Quarterly Report on Form 10-Q (No. 001-35867) filed with the SEC on May 9, 2017.
Incorporated by reference to Chimerix, Inc.’s Quarterly Report on Form 10-Q (No. 001-35867) filed with the SEC on August 7, 2017.
Incorporated by reference to Chimerix, Inc.’s Current Report on Form 8-K (No. 001-35867) filed with the SEC on October 11, 2017.
Incorporated by reference to Chimerix, Inc.’s Current Report on Form 8-K (No. 001-35867) filed with the SEC on November 8, 2017.
Incorporated by reference to Chimerix, Inc.’s Annual Report on Form 10-K (No. 001-35867) filed with the SEC on March 1, 2018.
Incorporated by reference to Chimerix, Inc.’s Quarterly Report on Form 10-Q (No. 001-35867) filed with the SEC on May 7, 2018.
Incorporated by reference to Chimerix, Inc.’s Quarterly Report on Form 10-Q (No. 001-35867) filed with the SEC on August 8, 2018.
Incorporated by reference to Chimerix, Inc.’s Quarterly Report on Form 10-Q (No. 001-35867) filed with the SEC on November 8,
2018.
Incorporated by reference to Chimerix, Inc.’s Annual Report on Form 10-K (No. 001-35867) filed with the SEC on March 5, 2019.
Incorporated by reference to Chimerix, Inc.’s Current Report on Form 8-K (No. 001-35867) filed with the SEC on April 10, 2019.

108

(26)
(27)

(28)

(29)

(30)

(31)

(32)
(33)
(34)

Incorporated by reference to Chimerix, Inc.’s Quarterly Report on Form 10-Q (No. 001-35867) filed with the SEC on May 9, 2019.
Incorporated by reference to Chimerix, Inc.’s Quarterly Report on Form 10-Q (No. 001-35867) filed with the SEC on August 8, 2019.
Incorporated by reference to Chimerix, Inc.’s Quarterly Report on Form 10-Q (No. 001-35867) filed with the SEC on November 5,
2019.
Incorporated by reference to Chimerix, Inc.’s Annual Report on Form 10-K (No. 001-35867) filed with the SEC on February 25,
2020.
Incorporated by reference to Chimerix, Inc.’s Quarterly Report on Form 10-Q (No. 001-35867) filed with the SEC on August 10,
2020.
Incorporated by reference to Chimerix, Inc.’s Quarterly Report on Form 10-Q (No. 001-35867) filed with the SEC on November 11,
2020.
Incorporated by reference to Chimerix, Inc.’s Current Report on Form 8-K (No. 001-35867) filed with the SEC on December 23,
2020.
Incorporated by reference to Chimerix, Inc.’s Current Report on Form 8-K (No. 001-35867) filed with the SEC on January 13, 2021.
Incorporated by reference to Chimerix, Inc.’s Current Report on Form 8-K (No. 001-35867) filed with the SEC on January 21, 2021.

109

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this Annual Report on Form 10-
K to be signed on its behalf by the undersigned, thereunto duly authorized.

SIGNATURES

Date:

February 25, 2021

By:

Chimerix, Inc. 

/s/ Michael A. Sherman
Michael A. Sherman
President and Chief Executive Officer

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Michael A. Sherman and
Michael T. Andriole, and each of them, his true and lawful attorneys-in-fact, each with full power of substitution, for him in any and all capacities, to sign
any amendments to this Annual Report on Form 10-K and to file the same, with exhibits thereto and other documents in connection therewith, with the
Securities and Exchange Commission, hereby ratifying and confirming all that each of said attorneys-in-fact or their substitute or substitutes may do or
cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, this Annual Report on Form 10-K has been signed below by the following persons on
behalf of the registrant and in the capacities and on the dates indicated.

Signature

/s/ Michael A. Sherman
Michael A. Sherman

/s/ Michael T. Andriole
Michael T. Andriole

/s/ David Jakeman
David Jakeman

/s/    Martha J. Demski
Martha J. Demski

Title

President, Chief Executive Officer and Director
(Principal Executive Officer)

Chief Business and Financial Officer
(Principal Financial Officer)

Executive Director of Finance and Accounting
(Principal Accounting Officer)

Date

February 25, 2021

February 25, 2021

February 25, 2021

Chair of the Board of Directors

February 25, 2021

/s/    Catherine L. Gilliss
Catherine L. Gilliss, PhD, RN, FAAN

Member of the Board of Directors

February 25, 2021

/s/ Edward F. Greissing Jr.
Edward F. Greissing Jr.

/s/    Patrick Machado
Patrick Machado

/s/ Robert J. Meyer
Robert J. Meyer, MD

/s/    Fred A. Middleton
Fred A. Middleton

/s/ Pratik S. Multani
Pratik S. Multani, MD

Member of the Board of Directors

February 25, 2021

Member of the Board of Directors

February 25, 2021

Member of the Board of Directors

February 25, 2021

Member of the Board of Directors

February 25, 2021

Member of the Board of Directors

February 25, 2021

110

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

1.    CONTRACT ID CODE

PAGE    OF    PAGES

Exhibit 10

2. AMENDMENT/MODIFICATION NO.

3. EFFECTIVE DATE

See Block 16C

0064

6. ISSUED BY

ASPR-BARDA
200 Independence Ave., S.W.
Room 640-G
Washington DC 20201

CODE ASPR-BARDA

7. ADMINISTERED BY (If other than Item 6)

CODE

ASPR-BARDA02

ASPR-BARDA
330 Independence Ave, SW, Rm G640
Washington DC 20201

4. REQUISITION/PURCHASE REQ. NO.
N/A.

1

    9

 5. PROJECT NO. (if applicable)

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code)

(x)

9A. AMENDMENT OF SOLICITATION NO.

CHIMERIX, INC. 1377270
CHIMERIX, INC.    2505 MERIDIAN P
2505 MERIDIAN PKWY STE 340
DURHAM NC 277135246

CODE

1377270

FACILITY CODE

 9B. DATED (SEE ITEM 11)

x

 10A. MODIFICATION OF CONTRACT/ORDER NO.
 HHSO100201100013C

 10B. DATED (SEE ITEM 13)

02/16/2011

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

    The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers     is extended.      is not extended

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods: (a) By completing Items 8 and 15, and returning ___________
copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted; or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers.
FAILURE OF YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT

THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by
virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes
reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (if required)
 N/A.

CHECK ONE

A.    THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.

13. THIS ITEM ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS. IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

B.    THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14,

PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

C.    THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D.    OTHER (Specify type of modification and authority)
Bilateral: Mutual Agreement of the Parties.

X

E. IMPORTANT:    Contractor     is not.     is required to sign this document and return      0     copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)
Tax ID Number:    33-0903395
DUNS Number:    121785997
A. The purpose of this no cost bilateral modification is to incorporate the following changes into the
contract:

1. The FAR Provisions and the FAR Clause that are contained in full text in the attached (7 pages) are
hereby incorporated into Contract Number HHSO100201100013C, at no additional cost to the Government.

2. The period of performance of CLIN 0005 under the contract is hereby changed from 17 June 2020 through 15
February 2021 to 17 June 2020 through 30 April 2021, at no additional cost

Continued ...

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)
MICHAEL ALRUTZ SVP & GENERAL COUNSEL

 16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)
ETHAN J. MUELLER

15B. CONTRACTOR/OFFEROR

15C. DATE SIGNED

16B. UNITED STATES OF AMERICA

16C. DATE SIGNED

    /s/ Michael Alrutz    
       (Signature of person authorized to sign)

1/26/2021

    /s/ Ethan J. Mueller    
             (Signature of Contracting Officer)

1/28/2021

NSN 7540-01-152-8070    STANDARD FORM 30 (REV. 10-83)
Previous edition unusable    Prescribed by GSA

CONTINUATION SHEET

REFERENCE NO. OF DOCUMENT BEING CONTINUED
HHSO100201100013C/0064

PAGE    OF

2

9

NAME OF OFFEROR OR CONTACTOR
CHIMERIX, INC. 1377270

ITEM NO.
(A)

SUPPLIES/SERVICES
(B)

QUANTITY
(C)

UNIT
(D)

UNIT PRICE
(E)

AMOUNT
(F)

to the Government.
3. The total amount and scope of all CLINs that are currently being performed under the contract remain
unchanged. This modification does not exercise any unexercised Option CLINs under the contract and does
not authorize any performance of efforts under any unexercised Option CLINs under the contract. In
addition, the total amount, scope and period of performance of all unexercised Option CLINs under the
contract remain unchanged. This modification also confirms that all activities under the base period of
performance CLIN 0001 were completed as of 31 May 2013 and confirms that all activities under the Option
1/CLIN 0002 period of performance were completed as of 30 April 2015 and confirms that all activities
under the Option 2/CLIN 0003 and CLIN 0004 period of performance were completed as of 20 August 2020.

B. This is a no cost bilateral modification. The total amount, scope and all other terms and conditions
of Contract Number HHSO100201100013C remain unchanged.
Period of Performance: 02/16/2011 to 04/30/2021

NSN 7540-01-152-8067    OPTIONAL FORM 336 (4-86)
    Sponsored by GSA
    FAR (48 CFR) 53.110

52.204-24 Representation Regarding Certain Telecommunications and Video Surveillance Services or Equipment.

As prescribed in 4.2105(a), insert the following provision:

Representation Regarding Certain Telecommunications and Video Surveillance Services or
Equipment (Aug 2020)

The Offeror shall not complete the representation at paragraph (d)(1) of this provision if the
Offeror has represented that it “does not provide covered telecommunications equipment or
services as a part of its offered products or services to the Government in the performance of any
contract, subcontract, or other contractual instrument” in the provision at 52.204-26, Covered
Telecommunications Equipment or Services—Representation, or in paragraph (v) of the
provision at 52.212-3, Offeror Representations and Certifications-Commercial Items.

(a) Definitions. As used in this provision—

Backhaul, covered telecommunications equipment or services, critical technology,
interconnection arrangements, reasonable inquiry, roaming, and substantial or essential
component have the meanings provided in the clause 52.204-25, Prohibition on Contracting for
Certain Telecommunications and Video Surveillance Services or Equipment.

(b) Prohibition.

(1) Section 889(a)(1)(A) of the John S. McCain National Defense Authorization Act for Fiscal
Year 2019 (Pub. L. 115-232) prohibits the head of an executive agency on or after August 13,
2019, from procuring or obtaining, or extending or renewing a contract to procure or obtain, any
equipment, system, or service that uses covered telecommunications equipment or services as a
substantial or essential component of any system, or as critical technology as part of any system.
Nothing in the prohibition shall be construed to—

(i) Prohibit the head of an executive agency from procuring with an entity to provide a service that connects to the

facilities of a third-party, such as backhaul, roaming, or
interconnection arrangements; or

(ii) Cover telecommunications equipment that cannot route or redirect user data traffic or cannot permit visibility into

any user data or packets that such equipment transmits or
otherwise handles.

(2) Section 889(a)(1)(B) of the John S. McCain National Defense Authorization Act for
Fiscal Year 2019 (Pub. L. 115-232) prohibits the head of an executive agency on or after August
13, 2020, from entering into a contract or extending or renewing a contract with an entity that
uses any equipment, system, or service that uses covered telecommunications equipment or
services as a substantial or essential component of any system, or as critical technology as part of
any system. This prohibition applies to the use of covered telecommunications equipment or

services, regardless of whether that use is in performance of work under a Federal contract.
Nothing in the prohibition shall be construed to—

(i) Prohibit the head of an executive agency from procuring with an entity to provide a service that connects to the

facilities of a third-party, such as backhaul, roaming, or
interconnection arrangements; or

(ii) Cover telecommunications equipment that cannot route or redirect user data traffic or cannot permit visibility into

any user data or packets that such equipment transmits or
otherwise handles.

(c) Procedures. The Offeror shall review the list of excluded parties in the System for Award
Management (SAM) (https://www.sam.gov) for entities excluded from receiving federal awards
for “covered telecommunications equipment or services”.

(d) Representation. The Offeror represents that—

(1) It □ will, will not provide covered telecommunications equipment or services to the Government in the performance of

any contract, subcontract or other contractual instrument resulting from this solicitation. The Offeror shall provide the additional
disclosure information required at paragraph (e)(1) of this section if the Offeror responds “will” in paragraph (d)(1) of this
section; and

(2) After conducting a reasonable inquiry, for purposes of this representation, the Offeror

represents that—

It □ does, does not use covered telecommunications equipment or services, or use any

equipment, system, or service that uses covered telecommunications equipment or services. The
Offeror shall provide the additional disclosure information required at paragraph (e)(2) of this
section if the Offeror responds “does” in paragraph (d)(2) of this section.

(e) Disclosures.

(1) Disclosure for the representation in paragraph (d)(1) of this provision. If the Offeror has
responded “will” in the representation in paragraph (d)(1) of this provision, the Offeror shall
provide the following information as part of the offer:

(i) For covered equipment—

(A) The entity that produced the covered telecommunications equipment (include

entity name, unique entity identifier, CAGE code, and whether the entity was the original
equipment manufacturer (OEM) or a distributor, if known);

(B) A description of all covered telecommunications equipment offered (include

brand; model number, such as OEM number, manufacturer part number, or wholesaler number;

and item description, as applicable); and

(C) Explanation of the proposed use of covered telecommunications equipment and any factors relevant to

determining if such use would be permissible under the prohibition in paragraph (b)(1) of this provision.

(ii) For covered services—

(A) If the service is related to item maintenance: A description of all covered

telecommunications services offered (include on the item being maintained: Brand; model
number, such as OEM number, manufacturer part number, or wholesaler number; and item
description, as applicable); or

(B) If not associated with maintenance, the Product Service Code (PSC) of the

service being provided; and explanation of the proposed use of covered telecommunications
services and any factors relevant to determining if such use would be permissible under the
prohibition in paragraph (b)(1) of this provision.

(2) Disclosure for the representation in paragraph (d)(2) of this provision. If the Offeror

has responded “does” in the representation in paragraph (d)(2) of this provision, the Offeror shall
provide the following information as part of the offer:

(i) For covered equipment—

(A) The entity that produced the covered telecommunications equipment (include
entity name, unique entity identifier, CAGE code, and whether the entity was the OEM or a
distributor, if known);

(B) A description of all covered telecommunications equipment offered (include

brand; model number, such as OEM number, manufacturer part number, or wholesaler number;
and item description, as applicable); and

(C) Explanation of the proposed use of covered telecommunications equipment and any factors relevant to

determining if such use would be permissible under the prohibition in paragraph (b)(2) of this provision.

(ii) For covered services—

(A) If the service is related to item maintenance: A description of all covered

telecommunications services offered (include on the item being maintained: Brand; model
number, such as OEM number, manufacturer part number, or wholesaler number; and item
description, as applicable); or

(B) If not associated with maintenance, the PSC of the service being provided; and

explanation of the proposed use of covered telecommunications services and any factors relevant

to determining if such use would be permissible under the prohibition in paragraph (b)(2) of this
provision.
(End of provision)

52.204-25 Prohibition on Contracting for Certain Telecommunications and Video
Surveillance Services or Equipment.

As prescribed in 4.2105(b), insert the following clause:

Prohibition on Contracting for Certain Telecommunications and Video Surveillance Services or
Equipment (Aug 2020)

(a) Definitions. As used in this clause—

Backhaul means intermediate links between the core network, or backbone network, and the

small subnetworks at the edge of the network (e.g., connecting cell phones/towers to the core
telephone network). Backhaul can be wireless (e.g., microwave) or wired (e.g., fiber optic,
coaxial cable, Ethernet).

Covered foreign country means The People’s Republic of China.

Covered telecommunications equipment or services means–

(1) Telecommunications equipment produced by Huawei Technologies Company or ZTE

Corporation (or any subsidiary or affiliate of such entities);

(2) For the purpose of public safety, security of Government facilities, physical security
surveillance of critical infrastructure, and other national security purposes, video surveillance
and telecommunications equipment produced by Hytera Communications Corporation,
Hangzhou Hikvision Digital Technology Company, or Dahua Technology Company (or any
subsidiary or affiliate of such entities);

(3) Telecommunications or video surveillance services provided by such entities or using

such equipment; or

(4) Telecommunications or video surveillance equipment or services produced or

provided by an entity that the Secretary of Defense, in consultation with the Director of National
Intelligence or the Director of the Federal Bureau of Investigation, reasonably believes to be an
entity owned or controlled by, or otherwise connected to, the government of a covered foreign
country.

Critical technology means–

(1) Defense articles or defense services included on the United States Munitions List set

forth in the International Traffic in Arms Regulations under subchapter M of chapter I of title 22,

Code of Federal Regulations;

(2) Items included on the Commerce Control List set forth in Supplement No. 1 to part
774 of the Export Administration Regulations under subchapter C of chapter VII of title 15,
Code of Federal Regulations, and controlled-

(i) Pursuant to multilateral regimes, including for reasons relating to national security,

chemical and biological weapons proliferation, nuclear nonproliferation, or missile technology;
or

(ii) For reasons relating to regional stability or surreptitious listening;

(3) Specially designed and prepared nuclear equipment, parts and components, materials,
software, and technology covered by part 810 of title 10, Code of Federal Regulations (relating
to assistance to foreign atomic energy activities);

(4) Nuclear facilities, equipment, and material covered by part 110 of title 10, Code of

Federal Regulations (relating to export and import of nuclear equipment and material);

(5) Select agents and toxins covered by part 331 of title 7, Code of Federal Regulations,

part 121 of title 9 of such Code, or part 73 of title 42 of such Code; or

(6) Emerging and foundational technologies controlled pursuant to section 1758 of the

Export Control Reform Act of 2018 (50 U.S.C. 4817).

Interconnection arrangements means arrangements governing the physical connection of two or more networks to allow the
use of another's network to hand off traffic where it is ultimately delivered (e.g., connection of a customer of telephone provider
A to a customer of telephone company B) or sharing data and other information resources.

Reasonable inquiry means an inquiry designed to uncover any information in the entity's

possession about the identity of the producer or provider of covered telecommunications
equipment or services used by the entity that excludes the need to include an internal or third-party audit.

Roaming means cellular communications services (e.g., voice, video, data) received from a

visited network when unable to connect to the facilities of the home network either because
signal coverage is too weak or because traffic is too high.

Substantial or essential component means any component necessary for the proper function

or performance of a piece of equipment, system, or service.

(b) Prohibition.

(1) Section 889(a)(1)(A) of the John S. McCain National Defense Authorization Act for Fiscal

Year 2019 (Pub. L. 115-232) prohibits the head of an executive agency on or after August 13,
2019, from procuring or obtaining, or extending or renewing a contract to procure or obtain, any
equipment, system, or service that uses covered telecommunications equipment or services as a
substantial or essential component of any system, or as critical technology as part of any system.
The Contractor is prohibited from providing to the Government any equipment, system, or
service that uses covered telecommunications equipment or services as a substantial or essential
component of any system, or as critical technology as part of any system, unless an exception at
paragraph (c) of this clause applies or the covered telecommunication equipment or services are
covered by a waiver described in FAR 4.2104.

(2) Section 889(a)(1)(B) of the John S. McCain National Defense Authorization Act for

Fiscal Year 2019 (Pub. L. 115-232) prohibits the head of an executive agency on or after August
13, 2020, from entering into a contract, or extending or renewing a contract, with an entity that
uses any equipment, system, or service that uses covered telecommunications equipment or
services as a substantial or essential component of any system, or as critical technology as part of
any system, unless an exception at paragraph (c) of this clause applies or the covered
telecommunication equipment or services are covered by a waiver described in FAR 4.2104.
This prohibition applies to the use of covered telecommunications equipment or services,
regardless of whether that use is in performance of work under a Federal contract.

(c) Exceptions. This clause does not prohibit contractors from providing—

(1) A service that connects to the facilities of a third-party, such as backhaul, roaming, or

interconnection arrangements; or

(2) Telecommunications equipment that cannot route or redirect user data traffic or permit

visibility into any user data or packets that such equipment transmits or otherwise handles.

(d) Reporting requirement.

(1) In the event the Contractor identifies covered telecommunications equipment or services used
as a substantial or essential component of any system, or as critical technology as part of any
system, during contract performance, or the Contractor is notified of such by a subcontractor at
any tier or by any other source, the Contractor shall report the information in paragraph (d)(2) of
this clause to the Contracting Officer, unless elsewhere in this contract are established
procedures for reporting the information; in the case of the Department of Defense, the
Contractor shall report to the website at https://dibnet.dod.mil. For indefinite delivery contracts,
the Contractor shall report to the Contracting Officer for the indefinite delivery contract and the
Contracting Officer(s) for any affected order or, in the case of the Department of Defense,
identify both the indefinite delivery contract and any affected orders in the report provided at
https://dibnet.dod.mil.

(2) The Contractor shall report the following information pursuant to paragraph (d)(1) of

this clause

(i) Within one business day from the date of such identification or notification: the

contract number; the order number(s), if applicable; supplier name; supplier unique entity
identifier (if known); supplier Commercial and Government Entity (CAGE) code (if known);
brand; model number (original equipment manufacturer number, manufacturer part number, or
wholesaler number); item description; and any readily available information about mitigation
actions undertaken or recommended.

(ii) Within 10 business days of submitting the information in paragraph (d)(2)(i) of this clause: any further available

information about mitigation actions undertaken or recommended. In addition, the Contractor shall describe the efforts it
undertook to prevent use or submission of covered telecommunications equipment or services, and any additional efforts that will
be incorporated to prevent future use or submission of covered telecommunications equipment or services.

(e) Subcontracts. The Contractor shall insert the substance of this clause, including this
paragraph (e) and excluding paragraph (b)(2), in all subcontracts and other contractual
instruments, including subcontracts for the acquisition of commercial items.

(End of clause)

52.204-26 Covered Telecommunications Equipment or Services-Representation.

As prescribed in 4.2105(c), insert the following provision:

Covered Telecommunications Equipment or Services-Representation (Dec 2019)

(a) Definitions. As used in this provision, “covered telecommunications equipment or
services” has the meaning provided in the clause 52.204-25, Prohibition on Contracting for
Certain Telecommunications and Video Surveillance Services or Equipment.

(b) Procedures. The Offeror shall review the list of excluded parties in the System for Award Management (SAM)
(https://www.sam.gov) for entities excluded from receiving federal awards for “covered telecommunications equipment or
services”.

(c) Representation. The Offeror represents that it □ does, does not provide covered
telecommunications equipment or services as a part of its offered products or services to the
Government in the performance of any contract, subcontract, or other contractual instrument.

(End of provision)

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the following Registration Statements:

1. Registration  Statement  (Form  S-8  No.  333-187860)  pertaining  to  the  2002  Equity  Incentive  Plan,  2012  Equity  Incentive  Plan,  2013  Equity

Incentive Plan and 2013 Employee Stock Purchase Plan of Chimerix, Inc.,

2. Registration  Statement  (Form  S-8  Nos.  333-194408,  333-202582,  333-209802,  333-216396,  333-223344,  333-230071,  333-233115,  and  333-

236610) pertaining to the 2013 Equity Incentive Plan and 2013 Employee Stock Purchase Plan of Chimerix, Inc., and

3. Registration Statement (Form S-3 No. 333-244146) of Chimerix, Inc.;

of our reports dated February 25, 2021 with respect to the consolidated financial statements of Chimerix, Inc. and the effectiveness of internal control over
financial reporting of Chimerix, Inc. included in this Annual Report (Form 10-K) of Chimerix, Inc. for the year ended December 31, 2020.

/s/ Ernst & Young LLP

Raleigh, North Carolina
February 25, 2021

 
 
 
Exhibit 31.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Michael A. Sherman, certify that:

1. I have reviewed this Annual Report on Form 10-K for the fiscal year ended December 31, 2020 of Chimerix, Inc.;

2.  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;

3.  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;

4. The registrant’s other certifying officer 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)  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;

b)  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;

c)  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

d)  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  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) 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

b) 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 25, 2021

/s/    Michael A. Sherman
Michael A. Sherman
President & Chief Executive Officer

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 31.2

CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Michael T. Andriole, certify that:

1. I have reviewed this Annual Report on Form 10-K for the fiscal year ended December 31, 2020 of Chimerix, Inc.;

2.  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;

3.  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;

4. The registrant’s other certifying officer 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)  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;

b)  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;

c)  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

d)  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  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) 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

b) 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 25, 2021

/s/ Michael T. Andriole
Michael T. Andriole
Chief Business and Financial 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  the  Annual  Report  on  Form  10-K  of  Chimerix,  Inc.  (the  “Company”)  for  the  period  ended  December  31,  2020,  as  filed  with  the
Securities and Exchange Commission on the date hereof (the “Report”), I, Michael A. Sherman, as Principal Executive Officer of the Company, certify,
pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

1. the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; 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 25, 2021

/s/    Michael A. Sherman
Michael A. Sherman
President & Chief Executive Officer

The  foregoing  certification  is  being  furnished  solely  to  accompany  the  Report  pursuant  to  18  U.S.C.  §  1350,  and  is  not  being  filed  for  purposes  of
Section 18 of the Securities Exchange Act of 1934, as amended, and is not to be incorporated by reference into any filing of the Company, whether made
before  or  after  the  date  hereof,  regardless  of  any  general  incorporation  language  in  such  filing.  A  signed  original  of  this  written  statement  required  by
Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff
upon request.

 
 
 
 
 
 
 
 
 
 
 
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  the  Annual  Report  on  Form  10-K  of  Chimerix,  Inc.  (the  “Company”)  for  the  period  ended  December  31,  2020,  as  filed  with  the
Securities  and  Exchange  Commission  on  the  date  hereof  (the  “Report”),  I,  Michael  T.  Andriole,  as  Principal  Financial  Officer  of  the  Company,  certify,
pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

1. the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; 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 25, 2021

/s/ Michael T. Andriole
Michael T. Andriole
Chief Business and Financial Officer

The  foregoing  certification  is  being  furnished  solely  to  accompany  the  Report  pursuant  to  18  U.S.C.  §  1350,  and  is  not  being  filed  for  purposes  of
Section 18 of the Securities Exchange Act of 1934, as amended, and is not to be incorporated by reference into any filing of the Company, whether made
before  or  after  the  date  hereof,  regardless  of  any  general  incorporation  language  in  such  filing.  A  signed  original  of  this  written  statement  required  by
Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff
upon request.