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Checkpoint Therapeutics, Inc.

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FY2023 Annual Report · Checkpoint Therapeutics, Inc.
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 10-K

 ☒

 ☐

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, 2023
or

For the Transition Period from                     to                   .

Commission File Number 001-38128
CHECKPOINT THERAPEUTICS, INC.
(Exact name of registrant as specified in its charter)

Delaware
(State or Other Jurisdiction of Incorporation or Organization)

47-2568632
(I.R.S. Employer Identification No.)

95 Sawyer Road, Suite 110
Waltham, Massachusetts 02453
(Address of Principal Executive Offices)

02453
(Zip Code)

Registrant’s telephone number, including area code: (781) 652-4500

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

Title of each class
Common Stock, par value $0.0001 per

Trading Symbol(s)
CKPT

Name of each exchange on which registered
NASDAQ Capital Market

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

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

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

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such
shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.   Yes    ☒     No    ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter)
during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).   Yes     ☒     No     ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of
“large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act:

Large accelerated filer

Non-accelerated filer

Emerging growth company

☐
☒
☐

Accelerated filer

Smaller reporting company

☐
☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards
provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section
404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☐
If  securities  are  registered  pursuant  to  Section  12(b)  of  the Act,  indicate  by  check  mark  whether  the  financial  statements  of  the  registrant  included  in  the  filing  reflect  the  correction  of  an  error  to
previously issued financial statements. ☐
Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers
during the relevant recovery period pursuant to § 240.10D-1(b). ☐

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

As of June 30, 2023, the last business day of the registrant’s mostly recently completed second fiscal quarter, the aggregate market value of the voting stock held by non-affiliates of the registrant was
$33,088,814 based upon the closing sale price of our common stock of $2.47 on that date. Common stock held by each officer and director and by each person known to own in excess of 5% of
outstanding shares of our common stock has been excluded in that such persons may be deemed to be affiliates. The determination of affiliate status in not necessarily a conclusive determination for
other purposes.

Indicate the number of shares outstanding of each of the registrant’s classes of common stock, as of the latest practicable date.

Class of Common Stock
Class A Common Stock, $0.0001 par value
Common Stock, $0.0001 par value

Outstanding Shares as of March 19, 2024
700,000
34,986,279

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrant’s Proxy Statement for its 2024 Annual Meeting of Stockholders are incorporated by reference in Part III of this Annual Report on Form 10-K.

 
 
 
 
 
 
 
 
 
 
Table of Contents

CHECKPOINT THERAPEUTICS, INC.
ANNUAL REPORT ON FORM 10-K
TABLE OF CONTENTS

PART I
Item 1.
Item 1A.
Item 1B.
Item 1C.
Item 2.
Item 3.
Item 4.
PART II
Item 5.
Item 6.
Item 7.
Item 7A.
Item 8.
Item 9.
Item 9A.
Item 9B.
Item 9C.
PART III
Item 10.
Item 11.
Item 12.
Item 13.
Item 14.
PART IV
Item 15.
Item 16.

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

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

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

Exhibits and Financial Statement Schedules
Form 10-K Summary

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SPECIAL CAUTIONARY NOTICE REGARDING FORWARD-LOOKING STATEMENTS

Certain matters discussed in this report may constitute forward-looking statements for purposes of the Securities Act of 1933, as amended (the “Securities
Act”) and the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and involve known and unknown risks, uncertainties and other factors
that may cause our actual results, performance or achievements to be materially different from the future results, performance or achievements expressed
or implied by such forward-looking statements. The words “anticipate,” “believe,” “estimate,” “may,” “expect,” “will,” “could,” “project,” “intend” and
similar expressions are generally intended to identify forward-looking statements. Our actual results may differ materially from the results anticipated in
these  forward-looking  statements  due  to  a  variety  of  factors,  including,  without  limitation,  those  discussed  under  the  captions  “Risk  Factors,”  and
elsewhere  in  this  report.  All  written  or  oral  forward-looking  statements  attributable  to  us  are  expressly  qualified  in  their  entirety  by  these  cautionary
statements. Such forward-looking statements include, but are not limited to, statements about our:

● expectations for increases or decreases in expenses;
● expectations for the clinical and preclinical development, manufacturing, regulatory approval, and commercialization of our pharmaceutical

product candidates or any other products we may acquire or in-license;

● use of clinical research centers and other contractors;
● expectations as to the timing of commencing or completing preclinical and clinical trials and the expected outcomes of those trials, including
the novel coronavirus (“COVID-19”) pandemic’s or other crises’ potentials to negatively affect the hospitals and clinical sites in which we
may conduct any of our clinical trials, and patients’ willingness to access those sites to continue the trials;

● intention to use data from our ongoing Phase 1 clinical trial of cosibelimab to support the submissions of one or more U.S. Biologics License
Applications (“BLAs”) and relatedly, our assumption that exclusively foreign clinical data may be acceptable to support marketing approval
under U.S. Food and Drug Administration (“FDA”) regulations;

● ability to work with our third-party contract manufacturer and the FDA to address the issues raised in the cosibelimab complete response
letter and execute on a pathway forward for the potential approval of cosibelimab for the treatment of patients with metastatic or locally
advanced cutaneous squamous cell carcinoma who are not candidates for curative surgery or radiation, and our projections of BLA
resubmission and regulatory review timelines;

● expectations regarding the potential differentiation of cosibelimab, including a potentially favorable study profile as compared to the

currently available anti-PD-1 therapies, the two-fold mechanism of action of cosibelimab translating into potential enhanced efficacy, and the
projections of publication and regulatory submission timelines;

● expectations for incurring capital expenditures to expand our research and development and manufacturing capabilities;
● expectations for generating revenue or becoming profitable on a sustained basis;
● expectations or ability to enter into marketing and other partnership agreements;
● expectations or ability to enter into product acquisition and in-licensing transactions;
● expectations or ability to build a commercial infrastructure to manufacture, market and sell our product candidates;
● expectations for the acceptance of our products by doctors, patients or payors;
● ability to compete against other companies and research institutions;
● ability to secure adequate protection for our intellectual property;
● ability to attract and retain key personnel;
● ability to obtain reimbursement for our products;
● estimates of the sufficiency of our existing cash and cash equivalents and investments to finance our operating requirements, including

expectations regarding the value and liquidity of our investments;

● stock price and the volatility of the equity markets;
● expected losses; and
● expectations for future capital requirements.

The  forward-looking  statements  contained  in  this  report  reflect  our  views  and  assumptions  as  of  the  effective  date  of  this  report.  New  risks  and
uncertainties arise from time to time, and it is impossible for us to predict these events or how they may affect us. Except as required by law, we assume no
responsibility for updating any forward-looking statements.

We  qualify  all  of  our  forward-looking  statements  by  these  cautionary  statements.  In  addition,  with  respect  to  all  of  our  forward-looking  statements,  we
claim the protection of the safe harbor for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995.

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SUMMARY OF RISK FACTORS

Our  business  is  subject  to  risks  of  which  you  should  be  aware  before  making  an  investment  decision. The  risks  described  below  are  a  summary  of  the
principal  risks  associated  with  an  investment  in  us  and  are  not  the  only  risks  we  face. You  should  carefully  consider  these  risk  factors,  the  risk  factors
described in Item 1A, and the other reports and documents that we have filed with the Securities and Exchange Commission (“SEC”).

Risks Related to our Finances and Capital Requirements

● We have incurred significant losses since our inception and anticipate that we will incur continued losses for the foreseeable future. We have not
generated any sales revenue from our development stage products, and we do not know when, or if, we will generate any revenue from sales of an
approved product.

● There is substantial doubt about our ability to continue as a going concern, which may hinder our ability to obtain future financing.

● Our success is contingent upon raising additional capital for our development programs and commercialization efforts, which may fail. Even if
successful, our future capital raising activities may dilute our current stockholders, restrict our operations, or require us to relinquish proprietary
rights.

● Our limited resources may cause us to fail to capitalize on programs or product candidates presenting commercial opportunity or high likelihood

of success.

● Weakness in the U.S. economy, including within our geographic footprint, has adversely affected us in the past and may adversely affect us in the

future.

Risks Pertaining to our Business Strategy, Structure and Organization

● Our future growth and success depend on our ability to successfully develop and commercialize our product candidates, which we have yet to do.

● Our future growth depends on our acquiring or in-licensing products or product candidates and integrating such products into our business.

Risks Inherent in Drug Development and Commercialization

● Because results of preclinical studies and clinical trials are not necessarily predictive of future results, any product candidate we advance may not
have  favorable  results  in  later  clinical  trials.  Moreover,  interim,  “top-line,”  and  preliminary  data  from  our  clinical  trials  that  we  announce  or
publish may change, or the perceived product profile may be impacted, as more patient data or additional endpoints are analyzed.

● We may not receive the required regulatory approvals for any of our product candidates on our projected timelines, if at all, which may result in

increased costs and delay our ability to generate revenue.

● If a product candidate demonstrates lack of efficacy or adverse side effects, we may need to abandon or limit the development of such product

candidate.

● We may not obtain the desired labeling claims or intended uses for product promotion, or favorable scheduling classifications, to successfully

promote our products.

● Even  if  a  product  candidate  is  approved,  it  may  be  subject  to  various  post-marketing  requirements,  including  studies  or  clinical  trials,  and

increased regulatory scrutiny.

● Our  competitors  have  developed  or  may  develop  treatments  for  our  products’  target  indications,  which  could  limit  our  product  candidates’

commercial opportunity and profitability.

Table of Contents

● If our products are not broadly accepted by the healthcare community, the revenues from any such product will likely be limited.

● Any successful products liability claim related to any of our current or future product candidates may cause us to incur substantial liability and

limit the commercialization of such products.

Risks Related to Reliance on Third Parties

● We rely, and will rely in the future, on third-party contract research organizations and contract manufacturers for the conduct of our preclinical
and  clinical  studies  and  trials,  for  the  completion  of  commercial  and  pre-commercial  manufacturing  and,  eventually,  for  commercialization.  If
such third parties fail to perform contractual obligations, pass regulatory inspections, meet deadlines, comply with applicable regulations, or if our
relationships with such third parties are disrupted, our product candidates may be delayed, and our revenue potential may be limited.

● We rely on clinical data and results obtained by third parties, which may prove inaccurate or unreliable.

Risks Relating to Legislation and Regulation Affecting the Biopharmaceutical and Other Industries

● We operate in a heavily regulated industry, and we cannot predict the impact that any future legislation or administrative or executive action may

have on our operations.

● We  may  be  subject  to  anti-kickback,  fraud  and  abuse,  false  claims,  transparency,  health  information  privacy  and  security  and  other  healthcare
laws and regulations, which could expose us to criminal sanctions, civil penalties, contractual damages, reputational harm, administrative burdens
and diminished profits and future earnings.

Risks Pertaining to Intellectual Property and Potential Disputes with Licensors Thereof

● If  we  are  unable  to  maintain  sufficient  patent  protection  for  our  technology  and  products,  our  competitors  could  develop  and  commercialize

products similar or identical to ours, impairing our ability to successfully commercialize potential products.

● We  or  our  licensors  may  be  subject  to  costly  and  time-consuming  litigation  for  infringement  of  third-party  intellectual  property  rights  or  to

enforce our or our licensors’ patents.

● Any dispute with our licensors may affect our ability to develop or commercialize our product candidates.

Risks Relating to Our Platform and Data

● Our  business  and  operations  would  suffer  in  the  event  of  computer  system  failures,  cyber-attacks,  or  deficiencies  in  our  or  third  parties’

cybersecurity.

Risks Relating to Our Control by Fortress Biotech, Inc. (“Fortress”)

● Fortress controls a voting majority of our common stock and has the right to receive significant share grants annually, which will result in dilution

of our other stockholders and could reduce the value of our common stock.

● We have entered into certain agreements with Fortress and may have received better terms from unaffiliated third parties.

Risks Related to Conflicts of Interest

● We share certain directors with Fortress, which could create conflicts of interest between us and Fortress.

Table of Contents

Item 1.     Business

OVERVIEW

PART I

We  are  a  clinical-stage  immunotherapy  and  targeted  oncology  company  focused  on  the  acquisition,  development  and  commercialization  of  novel
treatments for patients with solid tumor cancers. We are evaluating our lead antibody product candidate, cosibelimab, an anti-programmed death-ligand 1
(“PD-L1”) antibody licensed from the Dana-Farber Cancer Institute (“Dana-Farber”), in an ongoing global, open-label, multicohort Phase 1 clinical trial in
checkpoint therapy-naïve patients with selected recurrent or metastatic cancers, including ongoing cohorts in locally advanced and metastatic cutaneous
squamous  cell  carcinoma  (“CSCC”)  intended  to  support  one  or  more  applications  for  marketing  approval.  Based  on  top-line  and  interim  results  in
metastatic and locally advanced CSCC, respectively, we submitted a Biologics License Application (“BLA”) to the U.S. Food and Drug Administration
(“FDA”) for these indications in January 2023. On December 15, 2023, the FDA issued a complete response letter (“CRL”) for the cosibelimab BLA for
the treatment of patients with metastatic or locally advanced CSCC who are not candidates or curative surgery or radiation. The CRL only cites findings
that arose during a multi-sponsor inspection of our third-party contract manufacturing organization as approvability issues to address in a resubmission.
Following  resolution  of  the  inspection  issues  at  the  third-party  contract  manufacturing  organization  raised  in  the  CRL,  a  resubmission  of  the  BLA  is
planned to support the marketing approval of cosibelimab. In addition, we are evaluating our lead small-molecule, targeted anti-cancer agent, olafertinib, a
third-generation epidermal growth factor receptor (“EGFR”) inhibitor, as a potential new treatment for patients with EGFR mutation-positive non-small
cell lung cancer (“NSCLC”).

In January 2022, we announced top-line results from a registration-enabling cohort of our multi-regional, Phase 1 clinical trial of cosibelimab in patients
with metastatic CSCC. The cohort met its primary endpoint, with cosibelimab demonstrating a confirmed objective response rate (“ORR”) of 47.4% (95%
CI: 36.0, 59.1) based on independent central review of 78 patients enrolled in the metastatic CSCC cohort using Response Evaluation Criteria in Solid
Tumors version 1.1 (“RECIST 1.1”).

In June 2022, we announced interim results from a registration-enabling cohort of our multi-regional, Phase 1 clinical trial of cosibelimab in patients with
locally advanced CSCC that are not candidates for curative surgery or radiation. Cosibelimab demonstrated a confirmed ORR of 54.8% (95% CI: 36.0,
72.7) based on independent central review of 31 patients enrolled in the cohort.

In  July  2023,  we  announced  longer-term  results  for  cosibelimab  from  its  pivotal  studies  in  locally  advanced  and  metastatic  CSCC.  These  results
demonstrated  a  deepening  of  response  over  time,  resulting  in  complete  response  rates  of  26%  and  13%  in  locally  advanced  and  metastatic  CSCC,
respectively.  Additionally,  the  confirmed  ORR  in  metastatic  CSCC  increased  to  50.0%  based  on  independent  central  review  using  RECIST  1.1.
Furthermore, responses continue to remain durable over time with the median duration of response not yet reached in either group. Updated safety data
across 247 patients enrolled and treated with cosibelimab in all cohorts of the ongoing study remain consistent with those previously reported.

We have also entered into various collaboration agreements with TG Therapeutics, Inc. (“TGTX”), a related party, to develop and commercialize certain
assets in connection with our licenses in the field of hematological malignancies, while we retain the right to develop and commercialize these assets in
solid tumors. Effective September 30, 2023, the Company and TGTX agreed to mutually terminate these collaborations, with full rights reverting back to
us.

To date, we have not received approval for the sale of any product candidate in any market and, therefore, have not generated any product sales from any
product  candidates.  In  addition,  we  have  incurred  substantial  operating  losses  since  our  inception,  and  expect  to  continue  to  incur  significant  operating
losses for the foreseeable future and may never become profitable. As of December 31, 2023, we have an accumulated deficit of $314.3 million.

We are a majority-controlled subsidiary of Fortress Biotech, Inc. (“Fortress”).

CORPORATE INFORMATION

Checkpoint Therapeutics, Inc. was incorporated in Delaware on November 10, 2014 and commenced principal operations in March 2015. Our executive
offices  are  located  at  95  Sawyer  Road,  Suite  110,  Waltham,  MA  02453.  Our  telephone  number  is  (781)  652-4500  and  our  email  address  is
ir@checkpointtx.com.

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We maintain a website with the address www.checkpointtx.com. We make available free of charge through our Internet website our annual reports on Form
10-K, quarterly reports on Form 10-Q and current reports on Form 8-K, and any amendments to these reports, as soon as reasonably practicable after we
electronically file such material with, or furnish such material to, the Securities and Exchange Commission (“SEC”). We are not including the information
on our website as a part of, nor incorporating it by reference into, this report. Additionally, the SEC maintains a website that contains annual, quarterly, and
current  reports,  proxy  statements,  and  other  information  that  issuers  (including  us)  file  electronically  with  the  SEC.  The  SEC’s  website  address  is
http://www.sec.gov.

In  addition,  we  may  disclose  material  non-public  information  by  disseminating  press  releases,  by  disclosing  information  during  publicly  accessible
meetings or conference calls, or through our website or social media accounts.

PRODUCTS UNDER DEVELOPMENT

Immuno-Oncology Agents

Cosibelimab (Anti-PD-L1) Program

Cosibelimab is a fully human monoclonal antibody of IgG1 subtype that directly binds to PD-L1 and blocks the PD-L1 interaction with the Programmed
Death Receptor-1 (“PD-1”) and B7.1 receptors. Cosibelimab’s primary mechanism of action is based on the inhibition of the interaction between PD-L1
and  its  receptors  PD-1  and  B7.1,  which  removes  the  suppressive  effects  of  PD-L1  on  anti-tumor  CD8+ T-cells  to  restore  the  cytotoxic T  cell  response.
Additionally,  cosibelimab  has  a  functional  Fc  domain  that  may  be  capable  of  inducing  antibody-dependent  cellular  cytotoxicity  (“ADCC”)  and
complement-dependent cytotoxicity (“CDC”) against tumor cells.

Preclinical  and  clinical  studies  of  PD-1  and  PD-L1  blocking  antibodies  conducted  by  third  parties  have  demonstrated  that  antibodies  that  block  the
interaction  of  PD-1  with  its  ligands,  PD-L1  and  PD-L2,  or  those  that  block  only  the  interaction  of  PD-L1  with  PD-1  can  augment  anti-tumor  T-cell
responses and lead to complete and lasting tumor eradication in a certain proportion of patients. Potent therapeutic anti-tumor responses due to blocking of
PD-1/PD-L1 interaction have been demonstrated by these approved products in patients with numerous different solid tumors including, but not limited to,
NSCLC, melanoma, RCC, head and neck cancer, CSCC and urothelial carcinoma.

We are initially developing cosibelimab in solid tumor oncology indications where studies of other PD-1/PD-L1 antibodies have shown to be effective. We
licensed the exclusive worldwide rights to certain anti-PD-L1 antibodies from Dana-Farber in March 2015. Also in March 2015, we entered into a Global
Collaboration Agreement with TGTX, a related party, to develop and commercialize anti-PD-L1 antibodies in the field of hematological malignancies. We
retain the right to develop and commercialize our anti-PD-L1 antibodies in solid tumors. Effective September 30, 2023, the Company and TGTX agreed to
mutually terminate these collaborations, with full rights reverting back to us.

We commenced a Phase 1, multi-center clinical study for cosibelimab in October 2017. The study is evaluating the safety and tolerability of ascending
doses of cosibelimab in checkpoint therapy-naïve patients with selected recurrent or metastatic cancers. Following completion of dose escalation in March
2018, multiple dose expansion cohorts were initiated, including ongoing cohorts in locally advanced and metastatic CSCC intended to support one or more
applications  for  marketing  approval.  The  primary  endpoint  is  ORR,  and  secondary  endpoints  include  duration  of  response,  progression-free  survival
(“PFS”), and overall survival (“OS”). In January 2022, we announced top-line results from a cohort of this study with cosibelimab administered as a fixed
dose  of  800  mg  every  two  weeks  in  patients  with  metastatic  CSCC. The  cohort  met  its  primary  endpoint,  with  cosibelimab  demonstrating  a  confirmed
ORR of 47.4% (95% CI: 36.0, 59.1) based on independent central review of 78 patients enrolled in the metastatic CSCC cohort using RECIST 1.1. In June
2022, we announced interim results from another cohort of this study with cosibelimab administered as a fixed dose of 800 mg every two weeks in patients
with locally advanced CSCC that are not candidates for curative surgery or radiation. Cosibelimab demonstrated a confirmed ORR of 54.8% (95% CI:
36.0, 72.7) based on independent central review of 31 patients enrolled in the cohort. The design of the interim analysis incorporated feedback from the
FDA and is intended to potentially support the approval of cosibelimab in this indication. In July 2023, we announced longer-term results for cosibelimab
from its pivotal studies in locally advanced and metastatic CSCC. These results demonstrated a deepening of response over time, resulting in complete
response rates of 26% and 13% in locally advanced and metastatic CSCC, respectively. Additionally, the confirmed ORR in metastatic CSCC increased to
50.0% based on independent central review. Furthermore, responses continue to remain durable over time with the median duration of response not yet
reached in either group. Updated safety data across 247 patients enrolled and treated with cosibelimab in all cohorts of the ongoing study remain consistent
with those previously reported.

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Based  on  these  results,  we  submitted  a  BLA  to  the  FDA  for  cosibelimab  in  January  2023.  On  December  15,  2023,  the  FDA  issued  a  CRL  for  the
cosibelimab BLA for the treatment of patients with metastatic or locally advanced CSCC who are not candidates or curative surgery or radiation. The CRL
only cites findings that arose during a multi-sponsor inspection of our third-party contract manufacturing organization as approvability issues to address in
a resubmission. Following resolution of the inspection issues at the third-party contract manufacturing organization raised in the CRL, a resubmission of
the  BLA  is  planned  to  support  the  marketing  approval  of  cosibelimab.  We  intend  to  seek  a  partner  to  submit  a  marketing  authorization  application
(“MAA”) submission in Europe, as well as additional potential submissions in markets worldwide.

CK-302 (Anti-GITR) Program

Our anti-GITR monoclonal antibody, CK-302, is a fully human agonistic antibody that is designed to bind to and trigger signaling in GITR expressing
cells. Scientific literature indicates that GITR is a co-stimulatory molecule of the TNF receptor family and is expressed on activated T cells, B cells, natural
killer (“NK”) and regulatory T-cells (“Treg”). As a co-stimulatory molecule, GITR engagement increases proliferation, activation, and cytokine production
of CD4+ and CD8+ T-cells. We believe our anti-GITR monoclonal antibody has the potential to abrogate immunosuppressive activity of natural Treg on
expansion  of  T-effector  cells.  GITR-specific  agonistic  monoclonal  antibodies  under  development  by  third  parties  have  been  shown  to  induce  tumor
regression in vivo through the activation of CD4+ T-cells, CD8+ T-cells and NK cells in a number of tumor models.

We  licensed  the  exclusive  worldwide  rights  to  anti-GITR  antibodies  from  Dana-Farber  in  March  2015. Also  in  March  2015,  we  entered  into  a  Global
Collaboration Agreement with TGTX to develop and commercialize anti-GITR antibodies in the field of hematological malignancies. We retain the right to
develop and commercialize anti-GITR antibodies in solid tumors. We believe that an anti-GITR antibody has the potential to be effective in one or more
oncological  indications  as  a  monotherapy  or  in  combination  with  an  anti-PD-L1  antibody  as  well  as  other  anti-tumor  immune  response  potentiating
compounds and targeted therapies. Effective September 30, 2023, the Company and TGTX agreed to mutually terminate these collaborations.

Currently, we are in preclinical development for this program.

Targeted Anti-Cancer Agents

Olafertinib (also known as CK-101 and RX518) EGFR Inhibitor Program

We are developing olafertinib as an oral, third-generation, irreversible kinase inhibitor against selective mutations of EGFR. Activating mutations in the
tyrosine kinase domain of EGFR such as L858R and exon 19 deletion are found in approximately 20% of patients with advanced NSCLC. Compared to
chemotherapy, first-generation EGFR inhibitors significantly improved ORR and PFS in previously untreated NSCLC patients carrying EGFR mutations.
However, tumor progression could develop due to resistance mutations, often within months of treatment with first-generation EGFR inhibitors.

The EGFR T790M “gatekeeper” mutation is the most common resistance mutation found in patients treated with first-generation EGFR inhibitors. The
mutation decreases the affinity of first-generation inhibitors to EGFR kinase domain, rendering the drugs ineffective. Second-generation EGFR inhibitors
have  improved  in  vitro  potency  against  the  T790M  mutation  but  have  not  provided  meaningful  benefits  in  NSCLC  patients  due  to  toxicity  from  also
inhibiting wild-type EGFR.

Third-generation EGFR inhibitors are designed to be highly selective against one or more EGFR activating mutations and the T790M resistance mutation
with minimal inhibition of wild-type EGFR, thereby potentially improving tolerability and safety profiles. In November 2015, Tagrisso® (osimertinib), a
third-generation  EGFR  inhibitor  developed  by AstraZeneca  plc,  received  accelerated  FDA  approval  for  the  treatment  of  patients  with  metastatic  EGFR
T790M mutation-positive NSCLC who have progressed on or after receiving EGFR tyrosine kinase inhibitor therapy. Tagrisso received full approval from
the  FDA  in  2017  based  on  data  from  a  randomized,  Phase  3  trial,  in  which  Tagrisso  significantly  improved  PFS  versus  platinum-based  doublet
chemotherapy, providing 10.1 months of median PFS compared to 4.4 months from chemotherapy. Subsequently, in April 2018, Tagrisso received FDA
approval for the first-line treatment of adult patients with metastatic NSCLC whose tumors have the EGFR exon 19 deletion or exon 21 L858R activating
mutations based on data from a randomized, Phase 3 trial in which Tagrisso significantly improved PFS versus first-generation EGFR inhibitors, providing
18.9 months of median PFS compared to 10.2 months from the EGFR inhibitor comparators, erlotinib or gefitinib.

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We are developing olafertinib for the potential treatment of adult patients with metastatic NSCLC whose tumors have EGFR exon 19 deletion mutations.
We believe that olafertinib has the potential to be effective in this population as a monotherapy or in combination with other anti-tumor immune response
potentiating compounds.

In March 2015, Fortress entered into an exclusive license agreement with NeuPharma, Inc., which agreement was assigned to us by Fortress on the same
date, to develop and commercialize novel covalent third-generation EGFR inhibitors on a worldwide basis outside of certain Asian countries. In August
2016,  the  FDA  accepted  our  Investigational  New  Drug  application  (“IND”)  and  we  initiated  a  Phase  1  clinical  trial  in  September  2016,  which  was
completed in September 2022. The trial evaluated the safety and tolerability of ascending doses of olafertinib in patients with advanced solid tumors to
determine the maximum tolerated dose and the safety and efficacy of olafertinib in patients with EGFR mutation-positive NSCLC. In September 2018, we
announced preliminary interim data in an oral presentation at the International Association for the Study of Lung Cancer 19th World Conference on Lung
Cancer  in  Toronto.  In  November  2020,  NeuPharma,  Inc.  commenced  a  Phase  3  clinical  trial  in  China  evaluating  olafertinib  in  treatment-naïve  locally
advanced or metastatic NSCLC patients whose tumors have EGFR exon 19 deletion mutations. We have met with the FDA to discuss the adequacy of the
ongoing Phase 3 trial in China.

CK-103 BET Inhibitor Program

We are developing CK-103, a novel, selective and potent small molecule inhibitor of bromodomain and extra-terminal (“BET”) bromodomains. CK-103
binds to the first and second bromodomains (BD1, BD2) of the BET protein family, BRD2, BRD3, BRD4, and BRDT. A bromodomain is an amino acid
protein  domain  that  recognizes  acetylated-lysine.  The  binding  of  the  drug  prevents  interaction  between  BET  proteins  and  both  acetylated  histones  and
transcription  factors. Therefore,  BET  proteins,  such  as  BRD4,  are  considered  potential  therapeutic  targets  in  cancer,  as  they  may  play  a  pivotal  role  in
regulating the transcription of key regulators of cancer cell growth and survival, including the c-Myc oncogene. BRD4 is often required for expression of
c-Myc. Scientific literature has shown that small molecule inhibition of BET bromodomains may lead to selective killing of tumor cells across a broad
range of hematologic malignancies and certain targeted solid tumors. We plan to develop CK-103 for the treatment of various advanced and metastatic
solid tumor cancers, including, but not limited to, those associated with elevated c-Myc expression.

In May 2016, we entered into an exclusive license agreement with Jubilant Biosys Limited (“Jubilant”) to develop and commercialize novel compounds
that  inhibit  BET  bromodomains  on  a  worldwide  basis.  Also  in  May  2016,  we  entered  into  a  Sublicense  Agreement  with  TGTX  to  develop  and
commercialize CK-103 in the field of hematological malignancies. We retained the right to develop and commercialize CK-103 in solid tumors. Effective
September 30, 2023, the Company and TGTX agreed to mutually terminate the Sublicense Agreement. Currently, we have completed the required CMC,
pharmacology and toxicology activities that we believe will support an IND application filing.

Anti-CAIX Research Program

Our anti-carbonic anhydrase IX (“CAIX”) antibody is a fully human preclinical antibody designed to recognize CAIX expressing cells and kill them via
ADCC and CDC. Scientific literature indicates that CAIX is a well characterized tumor associated antigen with expression almost exclusively limited to
the cells of renal cell carcinoma (“RCC”). More than 85% of RCC cases have been demonstrated to express high levels of CAIX expression. There is very
limited expression of this antigen on healthy tissue which we believe will limit reactivity of this antibody against healthy tissues.

In 2015, preclinical data were published in the peer-reviewed journal, Molecular Cancer, that demonstrated that our anti-CAIX antibodies could trigger
killing of CAIX-positive human RCC cell lines in tissue culture via ADCC and CDC. The killing activity correlated positively with the level of CAIX
expression  on  RCC  tumor  cell  lines.  In  addition,  the  study  demonstrated  that  our  anti-CAIX  antibodies  inhibited  growth  of  CAIX-positive  tumors  in  a
mouse xenograft model as well as led to the activation of T-cells and NK cells.

We licensed the exclusive worldwide rights to certain anti-CAIX antibodies from Dana-Farber in March 2015. Currently, we are in preclinical development
for this program.

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COSTS AND TIME TO COMPLETE PRODUCT DEVELOPMENT

The information below provides estimates regarding the costs associated with the completion of the current development phase and our current estimated
range of the time that will be necessary to complete that development phase for our key product candidates. For a description of the risk factors that could
significantly affect our ability to meet these cost and time estimates, see Item 1A of this report.

Product Candidate
Cosibelimab

Target Indication(s)
Locally advanced and
metastatic cutaneous
squamous cell carcinoma

Development
Status

Phase 1 registration-
enabling

Estimated
Completion
of Phase

2024

Estimated Cost to
Complete Phase

$3 to $4 million

Completion  dates  and  costs  in  the  above  table  are  estimates  due  to  the  uncertainties  associated  with  clinical  trials  and  the  related  requirements  of
development. In the cases where the requirements for clinical trials and development programs have not been fully defined, or are dependent on the success
of  other  trials,  we  cannot  estimate  trial  completion  or  cost  with  any  certainty.  The  actual  spending  on  each  trial  during  the  year  is  also  dependent  on
funding.

INTELLECTUAL PROPERTY AND PATENTS

General

Our  goal  is  to  obtain,  maintain  and  enforce  patent  protection  for  our  products,  formulations,  processes,  methods  and  other  proprietary  technologies,
preserve our trade secrets, and operate without infringing on the proprietary rights of other parties, both in the United States and in other countries. Our
policy  is  to  actively  seek  to  obtain,  where  appropriate,  broad  intellectual  property  protection  for  our  product  candidates,  proprietary  information  and
proprietary technology through a combination of contractual arrangements and patents, both in the U.S. and elsewhere in the world.

We also depend upon the skills, knowledge and experience of our scientific and technical personnel, as well as that of our advisors, consultants and other
contractors  (“know-how”). To  help  protect  our  proprietary  know-how  which  is  not  patentable,  and  for  inventions  for  which  patents  may  be  difficult  to
enforce,  we  rely  on  trade  secret  protection  and  confidentiality  agreements  to  protect  our  interests.  To  this  end,  we  require  all  employees,  consultants,
advisors  and  other  contractors  to  enter  into  confidentiality  agreements  that  prohibit  the  disclosure  of  confidential  information  and,  where  applicable,
require disclosure and assignment to us of the ideas, developments, discoveries and inventions important to our business.

Patents  and  other  proprietary  rights  are  crucial  to  the  development  of  our  business.  We  will  be  able  to  protect  our  proprietary  technologies  from
unauthorized  use  by  third  parties  only  to  the  extent  that  our  proprietary  rights  are  covered  by  valid  and  enforceable  patents,  supported  by  regulatory
exclusivity,  or  are  effectively  maintained  as  trade  secrets.  We  cannot  guarantee  the  scope  of  protection  of  the  issued  patents,  or  that  such  patents  will
survive a validity or enforceability challenge, or that any of the pending patent applications will issue as patents.

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Generally,  patent  applications  in  the  U.S.  are  maintained  in  secrecy  for  a  period  of  18  months  or  more.  The  patent  positions  of  biotechnology  and
pharmaceutical  companies  are  highly  uncertain  and  involve  complex  legal  and  factual  questions.  Therefore,  we  cannot  predict  the  breadth  of  claims
allowed in biotechnology and pharmaceutical patents, the continued patent eligibility of the claimed subject matter, or their enforceability. To date, there
has been no consistent policy regarding the breadth of claims allowed in biotechnology patents. Third parties or competitors may challenge or circumvent
our patents or patent applications, if issued. If our competitors prepare and file patent applications in the U.S. that claim technology also claimed by us in a
pending  patent  application  or  issued  patent,  we  may  have  to  participate  in  interference  or  derivation  proceedings  declared  by  the  U.S.  Patent  and
Trademark Office to determine priority of invention or inventorship, which could result in substantial cost, even if the eventual outcome is favorable to us.
Because of the extensive time required for development, testing and regulatory review of a potential product, it is possible that before we commercialize
any of our products, any related patent may expire or remain in existence for only a short period following commercialization, thus reducing any advantage
of the patent. However, the life of a patent covering a product that has been subject to regulatory approval may have the ability to be extended through the
patent restoration program, although any such extension could still be minimal and, in any case, is limited to a maximum of five additional years of patent
term.  But  that  maximum  of  five  additional  years  is,  itself,  subject  to  a  cap  of  a  maximum  of  14  years  of  patent  protection  from  the  date  of  marketing
approval.

In  March  2015,  we  licensed  intellectual  property  related  to  certain  antibodies  from  Dana-Farber.  The  intellectual  property  includes  issued  patents  and
pending patent applications in a number of countries. The issued patents and pending patent applications relate generally to compositions and methods of
treatment involving antibodies against PD-L1, CAIX, and GITR.

The PD-L1 segment of the in-licensed portfolio from Dana-Farber includes two granted U.S. patents (U.S. Patent Nos. 9,828,434 and 10,604,581) directed
to antibodies that bind to PD-L1 and methods of augmenting a patient’s immune response by administering an anti-PD-L1 antibody, respectively. The ‘434
patent is scheduled to expire October 4, 2033, and the ‘581 patent is scheduled to expire November 18, 2033, not including any patent term restorations,
which might become available under the provisions of U.S. patent laws, based on regulatory delays associated with obtaining marketing approval. Two
Australian (AU 2013326901 and AU 2018226425), one Japanese (JP 6461800), one South Korean (KR 101947702), one Israeli (IL 237737), one Mexican
(MX 370848), two Colombian (CO 34878 and CO 39049), one Canadian (CA 2886433), and two Chinese (CN 104994873 and CN 10782719) counterpart
patents have issued, as well as registration of the two Chinese patents in Hong Kong (HK 1211223 and HK 1253723). Additional international counterpart
applications are pending in Canada and China. The issued international patents and any patents maturing from these pending applications will expire no
sooner than October 2033. Checkpoint has also licensed from Dana-Farber a further anti-PD-L1 antibody portfolio that claims variants of the antibodies
disclosed in the earlier-filed in-licensed family. This additional portfolio includes PCT/US2020/062815, which was filed on December 2, 2020, and it had
been  nationalized  in  the  US, Australia,  Canada,  Europe,  and  Japan. Any  patents  maturing  from  these  pending  applications  will  expire  no  sooner  than
December 2040.

In June 2016, Checkpoint also filed a company-owned U.S. provisional application (U.S. 62/356,105) directed to antibodies, including cosibelimab, and
functional fragments thereof that bind to human PD-L1, and methods of inhibiting tumor cell proliferation in patients using such antibodies or functional
fragments. The provisional application was converted into a PCT application (PCT/US2017/039810) in June 2017, and a U.S. non-provisional application
(U.S. Appl. No. 15/636,610) was filed at the same time. This portfolio now includes two issued U.S. patents, U.S. Patent No. 10,590,199 and U.S. Patent
No. 11,834,505. U.S. Patent No. 10,590,119 has claims directed to specific anti-PD-L1 antibodies, including cosibelimab, and fragments thereof, as well as
methods of treating tumors/cancers with anti-PD-L1 antibodies and fragments thereof. U.S. Patent No. 11,834,505 has claims directed to treating cancer
with anti-PD-L1 antibodies, including cosibelimab. Both of these patents (U.S. Patent Nos. 10,590,119 and 11,834,505) are scheduled to expire on May 31,
2038,  not  including  any  patent  term  restorations,  which  might  become  available  under  the  provisions  of  U.S.  patent  laws,  based  on  regulatory  delays
associated with obtaining marketing approval. A further U.S. application, U.S. Appl. No. 18/377,702, is currently pending. International counterpart patents
have also granted in Israel (IL 263611), Japan (JP 7148414), South Korea (KR 10-2422411), Russia (RU 2749109), and Singapore (SG 11201810927Q),
and additional applications are pending in Australia, Brazil, Canada, China, Europe, Hong Kong, Israel, India, Japan, South Korea, Mexico, New Zealand,
Singapore and Thailand. Any patents maturing from these pending applications will expire no sooner than June 2037.

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The  CAIX  segment  of  the  in-licensed  portfolio  from  Dana-Farber  includes  three  granted  U.S.  patents  (U.S.  Patent  Nos.  8,466,263,  10,450,383,  and
11,174,323). The ‘263 patent is directed to isolated human monoclonal antibodies and scFv antibodies that bind to CAIX (G250) protein, and compositions
and kits comprising such antibodies. The term of the ‘263 patent runs to July 9, 2029. The ‘383 patent is directed to methods of treating cancer with anti-
CAIX antibodies, and its term runs until April 26, 2027. The ‘323 patent is directed to methods of treating renal cancer with anti-CAIX antibodies, and its
term  runs  until  February  11,  2027. The  ‘263  patent,  the  ‘383  patent,  the  ‘323  patent  may  be  entitled  to  any  patent  term  restorations  that  might  become
available under the provisions of U.S. patent laws, based on regulatory delays associated with obtaining marketing approval. The European counterpart
patent (EP 1979379) is in force in Switzerland, Liechtenstein, Germany, France and the United Kingdom. A Canadian counterpart patent (CA 2,632,094)
has also been issued. Both the European and Canadian counterpart patents are scheduled to expire no sooner than December 2026.

The GITR segment of the in-licensed portfolio from Dana-Farber includes an International Application No. PCT/US2015/054010, filed in October 2015,
and International Application No. PCT/US2017/043504, filed in July 2017. All of the national stage applications claiming priority to PCT/US2015/054010
have lapsed; however, there is one granted patent (U.S. Patent No. 10,463,732) in this family. The ‘732 patent will not expire until at least October 2035,
barring any patent term restorations that might become available under the provisions of U.S. patent laws. National stage applications claiming priority to
PCT/US2017/043504 have resulted in one US patent (U.S. 11,046,777), one Chinese patent (CN 109689689), one Japanese patent (JP 7082967), one South
Korean patent (KR 2534568), and one patent in Singapore (SG 11201900500T). This family also includes pending patent applications in the U.S. (U.S.
Appl. No. 17/316,141), Australia, Brazil, Canada, Europe, Israel, New Zealand, Thailand, and Mexico. Any of these national stage applications that issue
or grant as patents would expire no earlier than July 2037. U.S. 11,046,777 will not expire until at least July 2037, barring any patent term restorations that
might become available under the provisions of the U.S. patent laws.

In March 2015, Fortress in-licensed intellectual property from NeuPharma, assigned to us by Fortress on the same date, which is directed to technology
involving small molecules that are inhibitors of EGFR and kinase mutants, including the compound olafertinib. EGFR is a receptor tyrosine kinase of the
ErbB  family  and  is  also  known  as  “Her1”  and  “ErbB1.”  The  in-licensed  patent  estate  includes  six  granted  U.S.  patents,  a  granted  European  patent,  a
granted patent in Hong Kong, a granted patent in Singapore, a granted patent in the Philippines, a granted Japanese patent, a granted South Korean patent,
a  granted  Malaysian  patent,  three  granted Australian  patents,  a  granted  New  Zealand  patent,  two  granted  Israeli  patents,  a  granted  Mexican  patent,  a
granted  Russian  patent,  a  granted  Indian  patent,  a  granted  Canadian  patent,  and  a  granted  Brazilian  patent.  U.S.  Patent  No.  9,550,770  is  directed  to  a
generic  formula  of  small  molecules  of  substituted  quinazolines  for  inhibiting  kinase  activity,  and  also  has  a  specific  claim  directed  to  the  compound,
olafertinib. The granted claims also cover pharmaceutically acceptable salts, pharmaceutical compositions, particular dosage forms and packaged goods.
U.S.  Patent  No.  9,849,139  is  directed  to  methods  of  inhibiting  EGFR  or  an  EGFR  mutant  in  a  subject  in  need  thereof,  comprising  administering  a
therapeutically  effective  amount  of  the  compounds  of  the  ‘770  patent,  including  the  compound,  olafertinib.  U.S.  Patent  No.  10,172,868  is  directed  to
methods  of  treating  non-small  cell  lung  cancer  with  a  specific  list  of  compounds,  including  the  compound,  olafertinib.  U.S.  Patent  No.  10,653,701  is
directed to methods of treating cancer with a substituted quinazoline compound comprising an electrophilic group capable of forming a covalent bond with
a nucleophile, which includes the compounds of the ‘868 patent (e.g., the compound, olafertinib). U.S. Patent No. 11,304,957 and U.S. Patent 11,865,120
are directed to processes for preparing compounds, including the compound, olafertinib. Additionally, there is a pending U.S. application in this family
(U.S. Appl. No. 18/519,150). The granted foreign patents cover the compound, olafertinib, and a broad range of related compounds, salts, pharmaceutical
compositions, including various dosage forms of such pharmaceutical compositions and certain uses of such compounds or salts thereof in treating cancer,
a disorder mediated by EGFR, or NSCLC, either alone or in combination with an additional anti-cancer and/or cytotoxic agent. The term of granted U.S.
and foreign patents runs to August 22, 2034, not including any patent term restorations in the U.S., which might become available under the provisions of
U.S. patent laws, based on regulatory delays associated with obtaining marketing approval. Additional counterpart applications exist in jurisdictions around
the  world,  including,  Hong  Kong,  the  Philippines,  Singapore,  South  Korea,  Malaysia,  China  and  Europe.  Any  patents  maturing  from  these  pending
applications  would  be  scheduled  to  expire  no  sooner  than  August  2034.  Checkpoint  has  also  licensed  from  NeuPharma  an  additional  international
application,  PCT/US2019/017117,  which  was  filed  on  February  7,  2019,  and  it  directed  to  additional  EGFR  inhibitors  and  methods  of  using  the  same.
National  stage  applications  claiming  priority  to  PCT/US2019/017117  have  resulted  in  one  US  patent  (U.S.  11,465,975)  and  are  pending  in Australia,
Canada, China, Europe, Hong Kong, the Philippines, Israel, Japan, South Korea, Singapore and New Zealand. Any of these national stage applications that
issue or grant as patents would expire no earlier than February 2039.

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In May 2016, we in-licensed intellectual property from Jubilant. Under the terms of the license agreement, Jubilant granted us exclusive, worldwide rights
under Jubilant’s patents and know-how covering small molecule inhibitors of BET, specifically targeting BRD4, a member of the BET family, which is
often  required  for  the  expression  of  c-Myc.  The  in-licensed  patent  estate  includes  two  international  (PCT)  applications,  filed  in  March  2016
(PCT/IN2016/050098)  and  September  2016  (PCT/IN2016/050300),  respectively,  which  claim  the  benefit  of  two  earlier-filed  Indian  provisional
applications. This patent estate has four granted U.S. patents, two granted Indian patents, two granted Japanese patents, two granted Australian patents, two
granted Russian patents, two granted Israeli patents, two granted patents in Hong Kong, two granted Chinese patents, two granted Mexican patents, two
Brazilian patents, one South Korean patent, and two granted European patents that have each been validated across a broad range of European countries.
National  stage  applications  claiming  priority  to  PCT/IN2016/050098  or  PCT/IN2016/050300  are  pending  in  Canada,  South  Korea,  New  Zealand,  and
Thailand. U.S. Patent No. 10,689,390, which is the U.S. national phase entry of PCT/IN2016/050098, is directed to a generic formula of small molecule
BET  inhibitors  and  specifically  claims  exemplified  small  molecule  BET  inhibitors.  The  granted  claims  of  the  ‘390  patent  also  cover  pharmaceutical
compositions. U.S. Patent No. 11,319,326, which is a divisional of the ‘390 patent, is directed to methods of treatment with the compounds claimed in the
‘390  patent,  including  inhibiting  one  or  more  BET  family  bromodomains  in  the  cell  and  treating  a  proliferative  disorder  or  cancer.  U.S.  Patent  No.
10,689,395, which is the U.S. national phase entry of PCT/IN2016/050300, is directed to a generic formula of small molecule BET inhibitors that cover
half of the exemplified small molecule BET inhibitors disclosed in PCT/IN2016/050300. The granted claims of the ‘395 patent also cover pharmaceutical
compositions and a method of treating cancer. U.S. Patent No. 11,267,820, which is a divisional of the ‘395 patent, is directed to the remaining half of the
exemplified compounds disclosed in PCT/IN2016/050300 and has claims similar to those granted from the ‘395 patent. Any patents maturing from this
patent estate are expected to expire in 2036.

Other Intellectual Property Rights

We  depend  upon  trademarks,  trade  secrets,  know-how  and  continuing  technological  advances  to  develop  and  maintain  our  competitive  position.  To
maintain the confidentiality of trade secrets and proprietary information, we require our employees, scientific advisors, consultants and collaborators, upon
commencement  of  a  relationship  with  us,  to  execute  confidentiality  agreements  and,  in  the  case  of  parties  other  than  our  research  and  development
collaborators, to agree to assign their inventions to us. These agreements are designed to protect our proprietary information and to grant us ownership of
technologies that are developed in connection with their relationship with us. These agreements may not, however, provide protection for our trade secrets
in the event of unauthorized disclosure of such information.

In  addition  to  patent  protection,  we  may  utilize  orphan  drug  designation  or  other  provisions  of  the  Food,  Drug  and  Cosmetic Act  of  1938,  as  amended
(“FDCA”),  to  provide  market  exclusivity  for  certain  of  our  product  candidates.  Orphan  drug  regulations  provide  incentives  to  pharmaceutical  and
biotechnology  companies  to  develop  and  manufacture  drugs  for  the  treatment  of  rare  diseases,  currently  defined  as  diseases  that  exist  in  fewer  than
200,000 individuals in the U.S., or diseases that affect more than 200,000 individuals in the U.S. but that the sponsor does not realistically anticipate will
generate a net profit. Under these provisions, a manufacturer of a designated orphan drug can seek tax benefits, and the holder of the first FDA approval of
a designated orphan drug product will be granted a seven-year period of marketing exclusivity for such FDA-approved orphan drug product. In September
2017, we received FDA Orphan Drug Designation for olafertinib for the treatment of EGFR mutation-positive NSCLC.

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LICENSING AGREEMENTS AND COLLABORATIONS

Dana-Farber Cancer Institute, Inc.

In  March  2015,  we  entered  into  a  license  agreement  with  Dana-Farber,  which  license  was  amended  effective  on  October  5,  2015, April  12,  2016,  and
October  24,  2016,  for  an  exclusive,  worldwide  license  to  Dana-Farber’s  patents  for  a  portfolio  of  fully  human  immuno-oncology  targeted  antibodies
targeting PD-L1, GITR and CAIX. The field of use license includes all prophylactic, therapeutic or diagnostic uses in humans or animals excluding use in
chimeric antigen receptor technology. The Dana-Farber antibodies were generated in the laboratory of Dr. Wayne Marasco, MD, PhD, a Professor in the
Department of Cancer Immunology and AIDS at Dana-Farber. Under the terms of the agreement, we paid Dana-Farber an up-front licensing fee of $1.0
million and, on May 11, 2015, granted Dana-Farber five percent of our common stock on a fully diluted basis, equal to 50,000 shares valued at $32,500 or
$0.65 per share. The agreement included an anti-dilution clause that maintained Dana-Farber’s ownership at 5% until such time that we raised $10 million
in  cash  in  exchange  for  common  shares.  Pursuant  to  this  provision,  on  September  30,  2015,  we  granted  to  Dana-Farber  an  additional  13,683  shares  of
common stock valued at approximately $0.6 million and the anti-dilution clause thereafter expired. Dana-Farber is eligible to receive payments of up to an
aggregate of approximately $21.5 million for each licensed product upon our successful achievement of certain clinical development, regulatory and first
commercial sale milestones. As of December 31, 2023, $5.0 million of these milestones have been achieved for the antibody targeting PD-L1. In addition,
Dana-Farber is eligible to receive up to an aggregate of $60.0 million upon our successful achievement of certain sales milestones based on aggregate net
sales,  in  addition  to  royalty  payments  based  on  a  tiered  low  to  mid-single  digit  percentage  of  net  sales.  Dana-Farber  also  receives  an  annual  license
maintenance fee of $50,000, which is creditable against milestone payments or royalties due to Dana-Farber. The license will terminate on a country-by-
country and product-by-product basis until the royalty term in such country with respect to such product expires, at which time the agreement will expire in
its entirety with respect to such product in such country. The royalty term, on a product-by-product and country-by-country basis, is the later of (i) ten years
after first commercial sale of a given product in such country, or (ii) the expiration of the last-to-expire Dana-Farber patent containing a valid claim to the
product in such country. To date, we have incurred $6.2 million of upfront licensing and milestone payments under this license agreement.

In connection with the license agreement with Dana-Farber, in March 2015 we entered into a collaboration agreement with TGTX, which was amended
and  restated  in  June  2019,  to  develop  and  commercialize  the  anti-PD-L1  and  anti-GITR  antibody  research  programs  in  the  field  of  hematological
malignancies. We retained the right to develop and commercialize these antibodies in solid tumors. Michael Weiss, Chairman of the Board of Directors of
Checkpoint and Fortress’ Executive Vice Chairman, Strategic Development, is also the Executive Chairman, President and Chief Executive Officer and a
stockholder of TGTX. Effective September 30, 2023, we mutually agreed with TGTX to terminate the collaboration agreement, with full rights reverting
back to us. Under the terms of the original collaboration agreement, TGTX paid us $0.5 million, representing an upfront licensing fee. Upon the signing of
the amended and restated collaboration agreement in June 2019, TGTX paid us an additional $1.0 million upfront licensing fee. We also received an annual
license maintenance fee, which was creditable against milestone payments or royalties due to us. TGTX also paid us for our out-of-pocket costs of material
used by TGTX for their development activities. For the years ended December 31, 2023 and 2022, we recognized approximately $58,000 and $121,000
respectively, in revenue from our collaboration agreement with TGTX in the Statements of Operations.

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Adimab, LLC

In October 2015, Fortress entered into a collaboration agreement with Adimab to discover and optimize antibodies using their proprietary core technology
platform.  Under  this  agreement, Adimab  optimized  cosibelimab,  our  anti-PD-L1  antibody  which  we  originally  licensed  from  Dana-Farber.  In  January
2019, Fortress transferred the rights to the optimized antibody to us, and we entered into a collaboration agreement directly with Adimab on the same day.
Under the terms of the agreement, Adimab is eligible to receive additional payments up to an aggregate of approximately $2.5 million upon various filings
for  regulatory  approvals  to  commercialize  the  product.  In  addition, Adimab  is  eligible  to  receive  royalty  payments  based  on  a  tiered  low  single  digit
percentage of net sales. The license will terminate on a country-by-country and product-by-product basis until the royalty term in such country with respect
to such product expires, at which time the agreement will expire in its entirety with respect to such licensed product in such country. The royalty term, on a
product-by-product and country-by-country basis, begins on the first commercial sale of a product in a country and ends on the later of (a) expiry of the
last-to-expire licensor patent containing a valid claim to the compound in such country; or (b) twelve years after the first commercial sale of such licensed
product  in  such  country.  In  February  2023,  the  Company  expensed  a  non-refundable  milestone  payment  of  $2.2  million  to  research  and  development
expenses upon the FDA’s filing acceptance of the Company’s BLA for cosibelimab in metastatic or locally advanced CSCC. To date, we have incurred $6.0
million in milestone payments under our collaboration agreement with Adimab.

NeuPharma, Inc.

In  March  2015,  Fortress  entered  into  an  exclusive  license  agreement  with  NeuPharma  to  develop  and  commercialize  novel  irreversible,  3rd  generation
EGFR inhibitors, including olafertinib, on a worldwide basis other than certain Asian countries. On the same date, Fortress assigned all of its right and
interest  in  the  EGFR  inhibitors  to  us.  The  license  agreement  was  amended  on  February  21,  2017.  Under  the  terms  of  the  license  agreement,  we  paid
NeuPharma an up-front licensing fee of $1.0 million, and NeuPharma is eligible to receive additional payments of up to an aggregate of approximately
$39.0 million upon our successful achievement of certain clinical development and regulatory milestones covering up to three indications, of which $22.5
million  are  due  upon  various  regulatory  approvals  to  commercialize  the  products.  In  addition,  NeuPharma  is  eligible  to  receive  payments  of  up  to  an
aggregate of $40.0 million upon our successful achievement of certain sales milestones based on aggregate net sales across all indications, in addition to
royalty payments based on a tiered mid to high-single digit percentage of net sales. The license will terminate on a country-by-country and product-by-
product basis until the royalty term in such country with respect to such product expires, at which time the agreement will expire in its entirety with respect
to such product in such country. Royalty term means, on a licensed product-by-licensed product and country-by-country basis, the period from the first
commercial sale of a given licensed product in such country until the later of (a) expiry of the last-to-expire licensor patent containing a valid claim to the
compound in such country; or (b) the 10th anniversary of the first commercial sale of such licensed product in such country. In a country where no licensor
patent containing a valid claim with respect to the compound has ever existed nor ever exists, the royalty term means on a product-by-product and country-
by-country basis, the period from the first commercial sale of such product in such country until the 10th anniversary of such first commercial sale of such
product in such country. To date, we have incurred $2.0 million of upfront licensing and milestone payments under the license agreement.

Jubilant Biosys Limited

In May 2016, we entered into a license agreement with Jubilant for an exclusive, worldwide license to Jubilant’s family of patents covering compounds
that inhibit BET proteins such as BRD4, including CK-103. The license agreement was amended on December 13, 2016 and March 31, 2017. Under the
terms of the license agreement, we paid Jubilant an up-front licensing fee of $2.0 million, and Jubilant is eligible to receive payments up to an aggregate of
approximately $88.4 million upon our successful achievement of certain clinical development and regulatory milestones covering two licensed products, of
which $59.5 million are due upon various regulatory approvals to commercialize the products. In addition, Jubilant is eligible to receive payments up to an
aggregate of $89.3 million upon our successful achievement of certain sales milestones based on aggregate net sales for two licensed products, in addition
to royalty payments based on a tiered low to mid-single digit percentage of net sales. The license will terminate on a country-by-country and product-by-
product basis until the royalty term in such country with respect to such product expires, at which time the agreement will expire in its entirety with respect
to such licensed product in such country. The royalty term, on a product-by-product and country-by-country basis, begins on the first commercial sale of a
product in a country and ends on the expiration of the last-to-expire Jubilant patent containing a valid claim to the product in such country. To date, we
have incurred $2.4 million of upfront licensing and milestone payments under the license agreement.

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In connection with the license agreement with Jubilant, we entered into a sublicense agreement with TGTX, a related party, to develop and commercialize
the compounds licensed in the field of hematological malignancies, while we retained the right to develop and commercialize these compounds in the field
of solid tumors. Effective September 30, 2023, we mutually agreed with TGTX to terminate the sublicense agreement. Under the terms of the sublicense
agreement, TGTX paid us $1.0 million, representing an upfront licensing fee. TGTX also paid us for 50% of IND enabling costs and patent expenses. For
each  of  the  years  ended  December  31,  2023  and  2022,  we  recognized  approximately  $46,000  and  $70,000,  respectively,  in  revenue  related  to  the
sublicense agreement in the Statements of Operations.

COMPETITION

Competition  in  the  pharmaceutical  and  biotechnology  industries  is  intense.  Our  competitors  include  pharmaceutical  companies  and  biotechnology
companies, as well as universities and public and private research institutions. In addition, companies that are active in different but related fields represent
substantial competition for us. Many of our competitors have significantly greater capital resources, larger research and development staffs and facilities
and  greater  experience  in  drug  development,  regulation,  manufacturing  and  marketing  than  we  do. These  organizations  also  compete  with  us  to  recruit
qualified  personnel,  attract  partners  for  joint  ventures  or  other  collaborations,  and  license  technologies  that  are  competitive  with  ours.  To  compete
successfully  in  this  industry,  we  must  identify  novel  and  unique  drugs  or  methods  of  treatment  and  then  complete  the  development  of  those  drugs  as
treatments.

The  drugs  that  we  are  attempting  to  develop  will  have  to  compete  with  existing  therapies.  In  addition,  a  large  number  of  companies  are  pursuing  the
development  of  pharmaceuticals  that  target  the  same  conditions  that  we  are  targeting.  Other  companies  have  products  or  product  candidates  in  various
stages  of  preclinical  or  clinical  development,  or  with  marketing  approvals,  to  treat  conditions  for  which  we  are  also  seeking  to  discover  and  develop
product candidates. Some of these potential competing drugs are further advanced in development than our product candidates and may be commercialized
earlier.

In the immuno-oncology area, several major pharmaceutical companies have a PD-1 and/or PD-L1 antibody on the market, including, without limitation,
Merck  &  Co.  (approved  drug  PD-1  with  the  brand  name  Keytruda®),  Bristol-Myers  Squibb  (approved  PD-1  with  the  brand  name  Opdivo®),  Roche
(approved PD-L1 with the brand name Tecentriq®), AstraZeneca (approved PD-L1 with the brand name Imfinzi®), Pfizer/Merck KGA (approved PD-L1
with  the  brand  name  Bavencio®),  Regeneron  (approved  PD-1  with  the  brand  name  Libtayo®),  GlaxoSmithKline  (approved  PD-1  with  the  brand  name
Jemperli®) and Coherus (approved PD-1 with the brand name Loqtorzi™). We are aware of several anti-GITR antibody development programs that are or
were  in  preclinical  or  early  clinical  studies,  including,  without  limitation,  by  Merck  &  Co.,  and  an  anti-CAIX  antibody  in  clinical  studies  by  Telix
Pharmaceuticals.

In the targeted anti-cancer agent area, there are several companies with marketing approvals or in development with EGFR inhibitors that are targeting
mutations similar to our programs. There are also a number of early stage programs developing BET inhibitors which could overlap with our upcoming
programs.

In the EGFR inhibitor space, Tarceva®, Iressa®, Gilotrif®, Tagrisso® and Vizimpro® are currently approved drugs for the treatment of first-line EGFR
mutation-positive NSCLC in the United States. AstraZeneca’s Tagrisso is also approved by the FDA for the treatment of patients with metastatic EGFR
T790M mutation-positive NSCLC who have progressed on or after EGFR tyrosine kinase inhibitor therapy and for the adjuvant treatment of patients with
early stage EGFR mutation positive NSCLC. In addition, we are aware of a number of products in development targeting cancer-causing mutant forms of
EGFR for the treatment of NSCLC patients, including, Novartis’ nazartinib, and Janssen’s lazertinib.

In the BET inhibitor space, there are a number of companies which have advanced to early stage clinical trials, including MorphoSys AG’s pelabresib,
Bristol-Myers Squibb’s trotabresib, Abbvie’s mivebresib, Incyte’s INCB57643 and Zenith Epigenetics’s ZEN003694.

Additional information can be found under Item 1A - Risk Factors - Risks Related to Our Business and Industry.

EMPLOYEES

As of December 31, 2023, we had twenty-three full and part-time employees. None of our employees are represented by a labor union and we consider our
employee relations to be good.

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SUPPLY AND MANUFACTURING

We have limited experience in manufacturing products for clinical or commercial purposes. We currently do not have any manufacturing capabilities. We
have  established,  or  intend  to  establish,  contract  manufacturing  relationships  for  the  supplies  of  our  product  candidates,  in  each  case  with  a  single
manufacturer. As  with  any  supply  program,  obtaining  raw  materials  of  a  sufficient  quality  cannot  be  guaranteed  and  we  cannot  ensure  that  we  will  be
successful in this endeavor.

At the time of commercial sale, if not prior, and to the extent possible and commercially practicable, we plan to seek to engage a back-up supplier for each
of our product candidates. Until such time, we expect that we will rely on a single contract manufacturer to produce each of our product candidates under
current GMP (“cGMP”) regulations. Our third-party manufacturers have a limited number of facilities in which our product candidates can be produced
and will have limited experience in manufacturing our product candidates in quantities sufficient for commercialization. Our third-party manufacturers will
have other clients and may have other priorities that could affect their ability to perform the work satisfactorily and/or on a timely basis. Both of these
occurrences would be beyond our control.

We expect to similarly rely on contract manufacturing relationships for any products that we may in-license or acquire in the future. However, there can be
no assurance that we will be able to successfully contract with such manufacturers on terms acceptable to us, or at all.

Contract  manufacturers  are  subject  to  ongoing  periodic  and  unannounced  inspections  by  the  FDA,  the  Drug  Enforcement Administration  (“DEA”)  and
corresponding state agencies to ensure strict compliance with cGMP and other state and federal regulations. Our contractors outside of the United States
face  similar  challenges  from  the  numerous  local  and  regional  agencies  and  authorized  bodies.  We  do  not  have  control  over  third-party  manufacturers’
compliance with these regulations and standards, other than through contractual obligations. If they are deemed out of compliance with cGMPs, product
recalls could result, inventory could be destroyed, production could be stopped, and supplies could be delayed or otherwise disrupted.

If  we  need  to  change  manufacturers  after  commercialization,  the  FDA  and  corresponding  foreign  regulatory  agencies  must  approve  these  new
manufacturers  in  advance,  which  will  involve  testing  and  additional  inspections  to  ensure  compliance  with  FDA  and  corresponding  foreign  regulatory
agency  regulations  and  standards  and  may  require  significant  lead  times  and  delay.  Furthermore,  switching  manufacturers  may  be  difficult  because  the
number of potential manufacturers is limited. It may be difficult or impossible for us to find a replacement manufacturer quickly or on terms acceptable to
us, or at all.

GOVERNMENT AND INDUSTRY REGULATIONS

Governmental  authorities,  including  the  FDA  and  corresponding  state  and  foreign  regulatory  agencies,  regulate  the  clinical  development,  manufacture,
approval and marketing of our product candidates, as well as our ongoing research and development activities. None of our product candidates have been
approved  for  sale  in  any  market  in  which  we  have  marketing  rights.  Before  marketing  in  the  U.S.,  any  drug  that  we  develop  must  undergo  rigorous
preclinical testing and clinical trials and an extensive regulatory approval process implemented by the FDA under the FDCA. The FDA regulates, among
other things, the pre-clinical and clinical testing, safety, efficacy, approval, manufacturing, record keeping, adverse event reporting, packaging, labeling,
storage, advertising, promotion, export, sale and distribution of biopharmaceutical products.

The  regulatory  review  and  approval  process  is  lengthy,  expensive  and  uncertain.  We  are  required  to  submit  extensive  preclinical  and  clinical  data  and
supporting information to the FDA for each indication or use to establish a product candidate’s safety and efficacy before we can secure FDA approval to
market or sell a product in the U.S. The approval process takes many years, requires the expenditure of substantial resources and may involve ongoing
requirements for post-marketing studies or surveillance. Before commencing clinical trials in humans, we must submit an IND to the FDA, or comparable
filing outside the U.S., containing, among other things, pre-clinical data, chemistry, manufacturing and control information, and an investigative plan. Our
submission of an IND may not result in FDA authorization to commence a clinical trial.

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Where appropriate, the FDA may designate certain drug candidates as eligible for expedited review when they are intended to treat persons with serious or
life-threatening conditions for which there is an unmet medical need. A sponsor can apply for such designation, including fast track review, at the time of
submission  of  an  IND,  or  at  any  time  prior  to  receiving  marketing  approval  of  the  new  drug  application  (“NDA”)  or  BLA.  To  receive  fast  track
designation, an applicant must demonstrate:

● that the drug is intended to treat a serious or life-threatening condition;
● that the drug is intended to treat a serious aspect of the condition; and
● that the drug has the potential to address unmet medical needs, and this potential is being evaluated in the planned drug development program.

The FDA responds to a request for fast track designation within 60 calendar days of receipt of the request. Over the course of drug development, a product
in  a  fast  track  development  program  must  continue  to  meet  the  criteria  for  fast  track  designation.  Sponsors  of  products  in  fast  track  drug  development
programs  are  in  regular  contact  with  the  reviewing  division  of  the  FDA  to  ensure  that  the  evidence  necessary  to  support  marketing  approval  will  be
developed and presented in a format conducive to an efficient review. Sponsors of products in fast track drug development programs may be eligible for
priority review of a completed application in six months or less and also may be permitted to submit portions of an NDA or BLA to the FDA for review
before the complete application is submitted.

Where  applicable,  sponsors  of  drugs  may  seek  approval  under  the  FDA’s  accelerated  approval  regulations.  Under  this  authority,  the  FDA  may  grant
marketing approval for a new drug product on the basis of adequate and well-controlled clinical trials establishing that the drug product has an effect on a
surrogate endpoint that is reasonably likely, based on epidemiologic, therapeutic, pathophysiologic, or other evidence, to predict clinical benefit or on the
basis  of  an  effect  on  a  clinical  endpoint  other  than  survival  or  irreversible  morbidity. Accelerated  approval  will  be  subject  to  the  requirement  that  the
sponsor study the drug further to verify and describe its clinical benefit where there is uncertainty as to the relation of the surrogate endpoint to clinical
benefit or uncertainty as to the relation of the observed clinical benefit to ultimate outcome. Post-marketing studies may be underway at the time a sponsor
files the NDA or BLA. When required to be conducted, such post-marketing studies must also be adequate and well-controlled. The sponsor must carry out
any such post-marketing studies with due diligence. Drug candidates that have received accelerated approval have subsequently failed to obtain approval.
Moreover, negative or inconclusive results from the clinical trials we may conduct, or adverse medical events could cause us to have to repeat or terminate
the clinical trials. Accordingly, we may not be able to complete the clinical trials within an acceptable time frame, if at all, and, therefore, could not submit
the NDA or BLA to the FDA or foreign regulatory authorities for marketing approval.

Clinical testing must meet requirements for institutional review board or ethics committee oversight, informed consent and good clinical practices, among
others, and must be conducted pursuant to an IND, unless exempted.

For purposes of NDA or BLA approval, clinical trials are typically conducted in the following sequential phases:

● Phase  1:  The  drug  is  administered  to  a  small  group  of  humans,  either  healthy  volunteers  or  patients,  to  test  for  safety,  dosage  tolerance,

absorption, metabolism, excretion and clinical pharmacology.

● Phase 2: Studies are conducted on a larger number of patients to assess the efficacy of the product, to ascertain dose tolerance and the optimal

dose range, and to gather additional data relating to safety and potential adverse events.

● Phase 3: Studies establish safety and efficacy in an expanded patient population.
● Phase 4: The FDA may require Phase 4 post-marketing studies to find out more about the drug’s long-term risks, benefits, and optimal use, or to

test the drug in different populations.

The length of time necessary to complete clinical trials varies significantly and may be difficult to predict. Clinical results are frequently susceptible to
varying interpretations that may delay, limit or prevent regulatory approvals. Additional factors that can cause delay or termination of our clinical trials, or
that may increase the costs of these trials, include:

● slow patient enrollment due to the nature of the clinical trial plan, the proximity of patients to clinical sites, the eligibility criteria for participation

in the study, external factors such as pandemics or geopolitical conflicts or other factors;

● inadequately trained or insufficient personnel at the study site to assist in overseeing and monitoring clinical trials or delays in approvals from a

study site’s review board;

● longer treatment time required to demonstrate efficacy or determine the appropriate product dose;

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● insufficient supply of the product candidates;
● adverse medical events or side effects in treated patients; and
● ineffectiveness of the product candidates.

In  addition,  the  FDA,  equivalent  foreign  regulatory  authority,  or  a  data  safety  monitoring  committee  for  a  trial  may  place  a  clinical  trial  on  hold  or
terminate it if it concludes that subjects are being exposed to an unacceptable health risk, or for futility, among other things. Any drug is likely to produce
some toxicity or undesirable side effects in animals and in humans when administered at sufficiently high doses and/or for a sufficiently long period of
time. Unacceptable toxicity or side effects may occur at any dose level at any time in the course of studies in animals designed to identify unacceptable
effects of a product candidate, known as toxicological studies, or clinical trials of product candidates. The appearance of any unacceptable toxicity or side
effect could cause us or regulatory authorities to interrupt, limit, delay or terminate the development of any of our product candidates and could ultimately
prevent approval by the FDA or foreign regulatory authorities for any or all targeted indications.

Sponsors of drugs may apply for a special protocol assessment (“SPA”) from the FDA. The SPA process is a procedure by which the FDA provides official
evaluation and written guidance on the design and size of proposed protocols that are intended to form the basis for a new drug application. However, final
marketing  approval  depends  on,  among  other  things,  the  results  of  efficacy,  the  adverse  event  profile  and  an  evaluation  of  the  benefit/risk  of  treatment
demonstrated in the Phase 3 trial. The SPA agreement may only be changed through a written agreement between the sponsor and the FDA, or if the FDA
becomes aware of a substantial scientific issue essential to product safety or efficacy.

Before receiving FDA approval to market a product, we must demonstrate that the product is safe and effective for its intended use by submitting to the
FDA an NDA or BLA containing the pre-clinical and clinical data that have been accumulated, together with chemistry and manufacturing and controls
specifications and information, and proposed labeling, among other things. The FDA may refuse to accept an NDA or BLA for filing if certain content
criteria are not met and, even after accepting an NDA or BLA, the FDA may often require additional information, including clinical data, before approval
of marketing a product.

It is also becoming more common for the FDA to request a Risk Evaluation and Mitigation Strategy (“REMS”), as part of an NDA or BLA. The REMS
plan contains post-market obligations of the sponsor to train prescribing physicians, monitor off-label drug use, and conduct sufficient Phase 4 follow-up
studies and registries to ensure the continued safe use of the drug.

As part of the approval process, the FDA must inspect and approve each manufacturing facility. Among the conditions of approval is the requirement that a
manufacturer’s quality control and manufacturing procedures conform to cGMP. Manufacturers must expend significant time, money and effort to ensure
continued compliance, and the FDA conducts periodic inspections to certify compliance. It may be difficult for our manufacturers or us to comply with the
applicable cGMP, as interpreted by the FDA, and other FDA regulatory requirements. If we, or our contract manufacturers, fail to comply, then the FDA
may not allow us to market products that have been affected by the failure.

If the FDA grants approval, the approval will be limited to those conditions and patient populations for which the FDA has determined that the product is
safe and effective, as demonstrated through data and information, including clinical studies. Further, a product may be marketed only in those dosage forms
and for those indications approved in the NDA or BLA. Certain changes to an approved NDA or BLA, including, with certain exceptions, any significant
changes to labeling, require approval of a supplemental application before the drug may be marketed as changed. Any products that we manufacture or
distribute pursuant to FDA approvals are subject to continuing monitoring and regulation by the FDA, including compliance with cGMP and the reporting
of adverse experiences with the drugs. The nature of marketing claims that the FDA will permit us to make in the labeling and advertising of our products
will generally be limited to those specified in FDA approved labeling, and the advertising of our products will be subject to monitoring and regulation by
the  FDA.  Drugs  whose  review  was  accelerated  may  carry  additional  restrictions  on  marketing  activities,  including  the  requirement  that  all  promotional
materials are pre-submitted to the FDA. Claims exceeding those contained in approved labeling may constitute a violation of the FDCA. Violations of the
FDCA or regulatory requirements, including those related to drug manufacturing, at any time during the product development process, approval process, or
marketing and sale following approval may result in agency enforcement actions, including withdrawal of approval, recall, seizure of products, warning
letters, injunctions, fines and/or civil or criminal penalties. Any agency enforcement action could have a material adverse effect on our business.

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Failure to comply with applicable federal, state and foreign laws and regulations would likely have a material adverse effect on our business. In addition,
federal, state and foreign laws and regulations regarding the manufacture and sale of new drugs are subject to future changes.

Other Healthcare Laws and Compliance Requirements

In the United States, our activities are potentially subject to regulation by various federal, state and local authorities in addition to the FDA, including the
Centers  for  Medicare  and  Medicaid  Services  (formerly  the  Health  Care  Financing Administration),  other  divisions  of  the  United  States  Department  of
Health and Human Services (e.g., the Office of Inspector General), the United States Department of Justice and individual United States Attorney offices
within the Department of Justice, and state and local governments.

Pharmaceutical Coverage, Pricing and Reimbursement

In the United States and markets in other countries, sales of any products for which we receive regulatory approval for commercial sale will depend in part
on  the  availability  of  reimbursement  from  third-party  payors,  including  government  health  administrative  authorities,  managed  care  providers,  private
health insurers and other organizations. Third-party payors are increasingly examining the medical necessity and cost-effectiveness of medical products
and  services,  in  addition  to  their  safety  and  efficacy,  and,  accordingly,  significant  uncertainty  exists  as  to  the  reimbursement  status  of  newly  approved
therapeutics. Adequate third-party reimbursement may not be available for our products to enable us to realize an appropriate return on our investment in
research and product development. In addition, in the U.S., the Inflation Reduction Act contains provisions that have the potential to substantially impact
the profitability of drugs. For example, the Inflation Reduction Act authorizes the Centers for Medicare & Medicaid Services (“CMS”) to negotiate drug
prices for certain drugs in Medicare Part D, beginning in 2026, and Parts D and B, beginning in 2028. Additionally, the Inflation Reduction Act imposes
inflation rebates on drugs reimbursed by Medicare Part B and Part D. Given the complexity of the Inflation Reduction Act and the uncertainty with respect
to its impending implementation, the impact of the Inflation Reduction Act on our financial conditions and operations cannot be predicted, whether in its
current form or as amended or repealed.

International Regulation

In addition to regulations in the United States, there are a variety of foreign regulations governing clinical trials and commercial sales and distribution of
any product candidates. The approval process varies from country to country, and the time may be longer or shorter than that required for FDA approval.

Item 1A.      Risk Factors

The following information sets forth risk factors that could cause our actual results to differ materially from those contained in forward-looking statements
we have made in this report and those we may make from time to time. You should carefully consider the risks described below, in addition to the other
information  contained  in  this  report  and  our  other  public  filings,  before  making  an  investment  decision.  Our  business,  financial  condition  or  results  of
operations could be harmed by any of these risks. The risks and uncertainties described below are not the only ones we face. Additional risks not presently
known to us or other factors not perceived by us to present significant risks to our business at this time also may impair our business operations.

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Risks Related to Our Finances and Capital Requirements

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

We have a limited operating history, and we have focused primarily on in-licensing and developing our product candidates, with the goal of supporting
regulatory  approval  for  these  product  candidates.  We  have  incurred  losses  since  our  inception  in  November  2014  and  have  an  accumulated  deficit  of
$314.3 million as of December 31, 2023. We expect to continue to incur significant operating losses for the foreseeable future. We also do not anticipate
that we will achieve profitability for a period of time after generating material revenues, if ever. If we are unable to generate revenues, we will not become
profitable  and  may  be  unable  to  continue  operations  without  continued  funding.  Because  of  the  numerous  risks  and  uncertainties  associated  with
developing  pharmaceutical  products,  we  are  unable  to  predict  the  timing  or  amount  of  increased  expenses  or  when  or  if,  we  will  be  able  to  achieve
profitability. Our net losses may fluctuate significantly from quarter to quarter and year to year. We anticipate that our expenses will increase substantially
if:

● one or more of our product candidates are submitted for marketing approval, as is the case with cosibelimab, or are approved for commercial sale,
due  to  our  need  to  establish  the  necessary  commercial  infrastructure  to  launch  this  product  candidate  without  substantial  delays,  including
manufacturing  to  build  pre-commercial  inventory,  hiring  sales  and  marketing  personnel  and  contracting  with  third  parties  for  warehousing,
distribution, cash collection and related commercial activities;

● we are required by the FDA or foreign regulatory authorities, to perform studies in addition to those currently expected;
● we  initiate  one  or  more  clinical  trials  to  pursue  additional  indications  for  our  product  candidates,  or  if  there  are  any  delays  in  completing  our

clinical trials or the development of any of our product candidates;

● we execute other collaborative, licensing or similar arrangements and the timing of payments we may make or receive under these arrangements;
● there are variations in the level of expenses related to our current and future development programs;
● there are any product liability or intellectual property infringement lawsuits in which we may become involved;
● there are any regulatory developments affecting product candidates of our competitors; and
● one or more of our product candidates receives regulatory approval.

Our  ability  to  become  profitable  depends  upon  our  ability  to  generate  revenue.  To  date,  we  have  not  generated  any  revenue  from  the  sale  of  our
development stage products, and we do not know when, or if, we will generate any revenue. To obtain revenues from sales of our product candidates, we
must succeed, either alone or with third parties, in developing, obtaining regulatory approval for, manufacturing and marketing products with commercial
potential. Our ability to generate revenue depends on a number of factors, including, but not limited to, our ability to:

● obtain regulatory approval for one or more of our product candidates, or any future product candidate that we may license or acquire;
● manufacture  commercial  quantities  of  one  or  more  of  our  product  candidates  or  any  future  product  candidate,  if  approved,  at  acceptable  cost

levels; and

● develop  a  commercial  organization  and  the  supporting  infrastructure  required  to  successfully  market  and  sell  one  or  more  of  our  product

candidates or any future product candidate, if approved.

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,  maintain  our  research  and
development efforts, diversify our product offerings or even continue our operations. A decline in the value of our company could also cause you to lose all
or part of your investment.

We  will  require  substantial  additional  funding  which  may  not  be  available  to  us  on  acceptable  terms,  or  at  all.  If  we  fail  to  raise  the  necessary
additional  capital,  we  may  be  unable  to  complete  the  development  and  commercialization  of  our  product  candidates,  or  continue  our  development
programs.

Our operations have consumed substantial amounts of cash since inception. We expect to significantly increase our spending to advance the preclinical and
clinical  development,  and  resulting  regulatory  approval  request  submissions,  of  our  product  candidates  and  launch  and  commercialize  any  product
candidates for which we may receive regulatory approval, including building a commercial organization

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to address certain markets. We will require additional capital for the further development and, if approved, commercialization of our product candidates, as
well  as  to  fund  our  other  operating  expenses  and  capital  expenditures.  We  believe,  assuming  no  business  or  corporate  development  transactions  are
consummated, that our cash and cash equivalents are only sufficient to fund our operating expenses into the third quarter of 2024. Accordingly, we intend
to  continue  our  active  discussions  with  third  party  pharmaceutical  and  biotechnology  companies  to  evaluate  potential  partnerships  or  other  types  of
corporate development transactions, including strategic mergers.

We  cannot  be  certain  that  additional  funding  will  be  available  on  acceptable  terms,  or  at  all.  If  we  are  unable  to  raise  additional  capital  in  sufficient
amounts, or on terms acceptable to us, we may have to significantly delay, scale back or discontinue the development or, if approved, commercialization of
one or more of our product candidates. We may also seek collaborators for one or more of our current or future product candidates at an earlier stage than
otherwise  would  be  desirable  or  on  terms  that  are  less  favorable  than  might  otherwise  be  available. Any  of  these  events  could  significantly  harm  our
business, financial condition and prospects.

Our future funding requirements will depend on many factors, including, but not limited to:

● the timing, design and conduct of, and results from, preclinical studies and clinical trials for our product candidates;
● the  timing  and  process  of  regulatory  approval  reviews  and  potential  for  delays  in  our  efforts  to  seek  regulatory  approval  for  our  product

candidates, and any costs associated with such delays;

● the costs of establishing a commercial organization to sell, market and distribute our product candidates;
● the rate of progress and costs of our efforts to prepare for the submission or resubmission of an NDA or BLA for any of our product candidates or
any product candidates that we may in-license or acquire in the future, and the potential that we may need to conduct additional clinical trials to
support applications for regulatory approval;

● the  costs  of  filing,  prosecuting,  defending  and  enforcing  any  patent  claims  and  other  intellectual  property  rights  associated  with  our  product

candidates, including any such costs we may be required to expend if our licensors are unwilling or unable to do so;

● the  cost  and  timing  of  securing  sufficient  supplies  of  our  product  candidates  from  our  third-party  manufacturers  for  clinical  trials  and  in

preparation for commercialization;

● the effect of competing technological and market developments;
● the terms and timing of any collaborative, licensing, co-promotion or other arrangements that we may establish;
● if  one  or  more  of  our  product  candidates  are  approved,  the  potential  that  we  may  be  required  to  file  a  lawsuit  to  defend  our  patent  rights  or

regulatory exclusivities from challenges by companies seeking to market generic versions of one or more of our product candidates; and

● the success of the commercialization of one or more of our product candidates, if approved.

Future  capital  requirements  will  also  depend  on  the  extent  to  which  we  acquire  or  invest  in  additional  complementary  businesses,  products  and
technologies, but we currently have no commitments or agreements relating to any of these types of transactions.

In order to carry out our business plan and implement our strategy, we anticipate that we will need to obtain additional financing from time to time and
may  choose  to  raise  additional  funds  through  strategic  collaborations,  licensing  arrangements,  public  or  private  equity  or  debt  financing,  bank  lines  of
credit,  asset  sales,  government  grants,  or  other  arrangements.  We  are  also  engaging  in  discussions  with  third  party  pharmaceutical  and  biotechnology
companies to evaluate potential partnerships or other types of corporate development transactions, including a strategic merger. We cannot be sure that any
additional  funding,  if  needed,  partnership  or  any  other  type  of  corporate  development  transaction,  will  be  available  on  terms  favorable  to  us  or  at  all.
Furthermore, any additional equity or equity-related financing, or equity that may be issued or sold in a corporate development transaction, may be dilutive
to our stockholders, and debt or equity financing, if available, may subject us to restrictive covenants and significant interest costs. If we obtain funding
through  a  strategic  collaboration,  merger,  or  licensing  arrangement,  we  may  be  required  to  relinquish  our  rights  to  certain  of  our  product  candidates  or
marketing territories.

Our  inability  to  raise  capital  when  needed  would  harm  our  business,  financial  condition  and  results  of  operations,  and  could  cause  our  stock  price  to
decline or require that we wind down our operations altogether.

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There is substantial doubt about our ability to continue as a going concern, which may hinder our ability to obtain future financing.

Our audited financial statements as of December 31, 2023, have been prepared under the assumption that we will continue as a going concern for the next
twelve months. We do not believe that our cash and cash equivalents are sufficient for the next twelve months after the date that our financial statements
are  issued. As  a  result  of  our  financial  condition  and  other  factors  described  herein,  there  is  substantial  doubt  about  our  ability  to  continue  as  a  going
concern. Our ability to continue as a going concern will depend on our ability to obtain additional funding, as to which no assurances can be given. We
continue to analyze various alternatives, including potentially obtaining debt or equity financings or other arrangements. Our future success depends on our
ability to raise capital. We cannot be certain that raising additional capital, whether through selling additional debt or equity securities or obtaining a line of
credit or other loan, will be available to us or, if available, will be on terms acceptable to us. If we issue additional securities to raise funds, these securities
may have rights, preferences, or privileges senior to those of our common stock, and our current shareholders may experience dilution. If we are unable to
obtain  funds  when  needed  or  on  acceptable  terms,  we  may  be  required  to  curtail  our  current  development  programs,  cut  operating  costs,  forego  future
development  and  other  opportunities  or  even  terminate  our  operations.  Additionally,  we  intend  to  continue  our  active  discussions  with  third  party
pharmaceutical and biotechnology companies to evaluate potential partnerships or other types of corporate development transactions, including strategic
mergers.

Raising additional capital may cause dilution to our existing stockholders, restrict our operations or require us to relinquish proprietary rights.

Until such time, if ever, as we can generate substantial product revenue, we expect to finance our cash needs through a combination of equity offerings,
debt  financings,  grants  and  license  and  development  agreements  in  connection  with  any  collaborations.  To  the  extent  that  we  raise  additional  capital
through the sale of equity or convertible debt securities, your ownership interest will be diluted, and the terms of these securities may include liquidation or
other preferences that adversely affect your rights as a stockholder. Debt financing and preferred equity 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 collaborations, mergers, strategic alliances or marketing, distribution 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 grant licenses on terms that
may not be favorable to us. If we are unable to raise additional funds through equity or debt financings when needed, we may be required to delay, limit,
reduce or terminate our product development or future commercialization efforts or grant rights to develop and market product candidates that we would
otherwise prefer to develop and market ourselves.

We are a “smaller reporting company,” which means that the reduced disclosure requirements applicable to smaller reporting companies may make
our common stock less attractive to investors.

We will remain a smaller reporting company until the fiscal year following the determination that our voting and non-voting common shares held by non-
affiliates  is  more  than  $250  million  measured  on  the  last  business  day  of  our  second  fiscal  quarter,  or  our  annual  revenues  are  more  than  $100  million
during the most recently completed fiscal year and our voting and non-voting common shares held by non-affiliates is more than $700 million measured on
the  last  business  day  of  our  second  fiscal  quarter.  Smaller  reporting  companies  are  able  to  provide  simplified  executive  compensation  disclosure,  are
exempt  from  the  auditor  attestation  requirements  of  Section  404,  and  have  certain  other  reduced  disclosure  obligations,  including,  among  other  things,
being required to provide only two years of audited financial statements and not being required to provide selected financial data, supplemental financial
information or risk factors.

We have elected to take advantage of certain of the reduced reporting obligations. We cannot predict whether investors will find our common stock less
attractive if we rely on these exemptions. If some investors find our common stock less attractive as a result, there may be a less active trading market for
our common stock and our stock price may be reduced or more volatile.

We no longer qualify as an “emerging growth company,” and as a result, we have to comply with increased disclosure and compliance requirements.

We no longer qualify as an emerging growth company (“EGC”) as defined in the Jumpstart Our Business Startups Act (the “JOBS Act”) because in 2023,
we reached the five-year anniversary of the first sale of our common stock pursuant to an effective registration statement under the Securities Act of 1933.
As such, we are no longer exempt from certain disclosure and compliance requirements that apply to

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other public companies but did not previously apply to us due to our status as an EGC. These requirements include, but are not limited to:

● compliance with any requirement that may be adopted by the PCAOB regarding mandatory audit firm rotation or a supplement to the auditor’s

report providing additional information about the audit and the financial statements, including critical audit matters;

● the  requirement  that  we  provide  more  detailed  disclosures  regarding  executive  compensation,  although  we  are  still  able  to  take  advantage  of

exemptions provided to smaller reporting companies; and

● the requirement that we obtain stockholder approval of any golden parachute payments not previously approved.

We  anticipate  increased  expenses,  including  exchange  listing  and  SEC  requirements,  director  and  officer  insurance  premiums,  legal,  audit  and  tax  fees,
regulatory compliance programs, and investor relations costs associated with being a public company and ceasing to be an emerging growth company.

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

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

Weakness  in  the  U.S.  economy,  including  within  our  geographic  footprint,  has  adversely  affected  us  in  the  past  and  may  adversely  affect  us  in  the
future.

We have been, and will continue to be, impacted by general business and economic conditions in the United States. These conditions include short-term
and long-term interest rates, inflation, money supply, political issues, war, legislative and regulatory changes, fluctuations in both debt and equity capital
markets, broad trends in industry and finance, unemployment and the strength of the U.S. economy and the local economies in which we operate, all of
which are beyond our control.

Worldwide financial markets have recently experienced periods of extraordinary disruption and volatility, which have been exacerbated by the COVID-19
pandemic, the Russia/Ukraine conflict and the evolving conflict in Israel and Gaza, resulting in heightened credit risk, reduced valuation of investments,
decreased economic activity, heightened risk of cyberattacks, and inflation. Moreover, many companies have experienced reduced liquidity and uncertainty
as to their ability to raise capital during such periods of market disruption and volatility. In the event that these conditions recur or result in a prolonged
economic  downturn,  our  results  of  operations,  financial  position  and/or  liquidity  could  be  materially  and  adversely  affected.  In  addition,  as  a  result  of
recent financial and political events, we may face increased regulation.

Risks Related to our Business Strategy, Structure, and Organization

We currently have no drug products for sale and are dependent on the future success of our product candidates. We can give no assurances that any of
our product candidates will receive regulatory approval or be successfully commercialized.

To date, we have invested a significant portion of our efforts and financial resources in the acquisition and development of our product candidates. As a
development-stage  company,  we  have  limited  experience  and  have  not  yet  demonstrated  an  ability  to  successfully  overcome  many  of  the  risks  and
uncertainties  frequently  encountered  by  companies  in  new  and  rapidly  evolving  fields,  particularly  in  the  biopharmaceutical  area.  Our  future  success  is
substantially  dependent  on  our  ability  to  successfully  develop,  obtain  regulatory  approval  for,  and  then  successfully  commercialize  such  product
candidates.  Our  product  candidates  are  currently  in  preclinical  development  or  in  clinical  trials.  Our  business  depends  entirely  on  the  successful
development and commercialization of our product

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candidates, which may never occur. We currently have no drug products for sale, currently generate no revenues from sales of any drug products and may
never be able to develop or commercialize a marketable drug.

The successful development, and any commercialization of our technologies and any product candidates that may occur, would require us to successfully
perform a variety of functions, including:

● developing our technology platform;
● identifying, developing, formulating, manufacturing and commercializing product candidates;
● entering into and maintaining successful licensing and other arrangements with product development partners;
● achieving clinical endpoints to support preparation of approval applications;
● participating in regulatory approval processes, including ultimately gaining approval to market a drug product, which may not occur; 
● obtaining sufficient quantities of our product candidates from our third-party manufacturers to meet clinical trial needs and, if approved, to meet

commercial demand at launch and thereafter;

● establishing and maintaining agreements with wholesalers, distributors and group purchasing organizations on commercially reasonable terms;
● conducting sales and marketing activities including hiring, training, deploying and supporting a sales force and creating market demand for our
product candidates through our own marketing and sales activities, and any other arrangements to promote our product candidates that we may
establish;

● maintaining patent protection and regulatory exclusivity for our product candidates; and
● obtaining market acceptance for our product candidates.

Each of these requirements will require substantial time, effort and financial resources.

We intend to use data from our ongoing Phase 1 clinical trial of cosibelimab, conducted outside the United States, in checkpoint therapy-naïve patients
with selected recurrent or metastatic cancers, including CSCC, to potentially support one or more U.S. BLAs and comparable applications for marketing
approval outside the U.S. In January 2020, we announced that we had initial discussions with the FDA to execute this strategy in CSCC. Based on top-line
and interim results in metastatic and locally advanced CSCC, respectively, we submitted a BLA to the U.S. FDA for these indications in January 2023. In
December 2023, the FDA issued a complete response letter for the cosibelimab BLA due to inspection issues at the third - party contract manufacturing
organization. Although  no  approvability  issues  regarding  use  of  data  from  the  Phase  1  clinical  trial  were  noted  in  the  complete  response  letter,  upon
resubmission of the BLA the FDA reserves the right to review the BLA again in its entirety. Similarly, we intend to use data from our licensor’s ongoing
Phase 3 clinical trial of olafertinib (formerly CK-101), conducted only in China, in patients with EGFR mutation-positive NSCLC, to potentially support a
U.S.  NDA  and  comparable  applications  for  marketing  approval  outside  the  U.S.  We  believe,  based  on  published  FDA  guidance  documents,  public
statements of companies with comparable product candidates, and past interactions with the FDA, that exclusively foreign clinical data from a single study
may be acceptable to support marketing approval(s) under FDA regulations. If we prove to be incorrect, running additional studies in the U.S. will require
substantial time, effort and financial resources or may not be possible at all.

Our operations have been limited to organizing our company, acquiring, developing and securing our proprietary technologies and obtaining preclinical
data or clinical data for various product candidates. These operations provide a limited basis for you to assess our ability to continue to identify product
candidates, develop and commercialize product candidates in our portfolio and any product candidates we are able to identify and enter into successful
collaborative arrangements with other companies in the future, as well as for you to assess the advisability of investing in our securities.

Each of our product candidates will require additional preclinical or clinical development, management of preclinical, clinical and manufacturing activities,
regulatory approval in the jurisdictions in which we plan to market the product, obtaining manufacturing supply, building of a commercial organization,
and significant marketing efforts before we generate any revenues from product sales, which may not occur. We are not permitted to market or promote any
of  our  product  candidates  in  the  U.S.  or  any  other  jurisdiction  before  we  receive  regulatory  approval  from  the  FDA  or  comparable  foreign  regulatory
authority, respectively, and we may never receive such regulatory approval for any of our product candidates.

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Our  future  growth  depends  on  our  ability  to  identify  and  acquire  or  in-license  products  and  successfully  integrating  such  acquired  or  in-licensed
products into our existing operations.

An important part of our business strategy is to continue to develop a pipeline of product candidates by acquiring or in-licensing products, businesses or
technologies that we believe are a strategic fit with our focus on novel combinations of immuno-oncology antibodies and small molecule targeted anti-
cancer agents. Future in-licenses or acquisitions, however, may entail numerous operational and financial risks, including:

● exposure to unknown liabilities;
● disruption of our business and diversion of our management’s time and attention to develop acquired products or technologies;
● difficulty  or  inability  to  secure  financing  to  fund  development  activities  for  such  acquired  or  in-licensed  technologies  in  the  current  economic

environment;

● incurrence of substantial debt or dilutive issuances of securities to pay for acquisitions;
● higher than expected acquisition and integration costs;
● increased amortization expenses;
● difficulty and cost in combining the operations and personnel of any acquired businesses with our operations and personnel;
● impairment of relationships with key suppliers or customers of any acquired businesses due to changes in management and ownership; and
● inability to retain key employees of any acquired businesses.

We have limited resources to identify and execute the acquisition or in-licensing of third-party products, businesses and technologies and integrate them
into our current infrastructure. In particular, we may compete with larger pharmaceutical companies and other competitors in our efforts to establish new
collaborations  and  in-licensing  opportunities.  These  competitors  likely  will  have  access  to  greater  financial  resources  than  us  and  may  have  greater
expertise in identifying and evaluating new opportunities. Moreover, we may devote resources to potential acquisitions or in-licensing opportunities that
are never completed, or we may fail to realize the anticipated benefits of such efforts.

Risks Inherent in Drug Development and Commercialization

Because results of preclinical studies and early clinical trials are not necessarily predictive of future results, any product candidate we advance may
not have favorable results in later clinical trials or receive regulatory approval. Moreover, interim, “top-line,” and preliminary data from our clinical
trials  that  we  announce  or  publish  may  change,  or  the  perceived  product  profile  may  be  negatively  impacted,  as  more  patient  data  or  additional
endpoints (including efficacy and safety) are analyzed.

Pharmaceutical  development  has  inherent  risks.  The  outcome  of  preclinical  development  testing  and  early  clinical  trials  may  not  be  predictive  of  the
outcome 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  of  their  product  candidates.  Once  a  product  candidate  has  displayed
sufficient preclinical data to warrant clinical investigation, we will be required to demonstrate through adequate and well-controlled clinical trials that our
product  candidates  are  effective  with  a  favorable  benefit-risk  profile  for  use  in  populations  for  their  target  indications  before  we  can  seek  regulatory
approvals  for  their  commercial  sale.  Many  drug  candidates  fail  in  the  early  stages  of  clinical  development  for  safety  and  tolerability  issues  or  for
insufficient clinical activity, despite promising preclinical results. Accordingly, no assurance can be made that a safe and effective dose can be found for
these compounds or that they will ever enter into advanced clinical trials alone or in combination with other product candidates. Moreover, success in early
clinical  trials  does  not  mean  that  later  clinical  trials  will  be  successful  because  product  candidates  in  later-stage  clinical  trials  may  fail  to  demonstrate
sufficient safety or efficacy despite having progressed through initial clinical testing. Companies frequently experience significant setbacks in advanced
clinical  trials,  even  after  earlier  clinical  trials  have  shown  promising  results.  There  is  an  extremely  high  rate  of  failure  of  pharmaceutical  candidates
proceeding through clinical trials.

Individually reported outcomes of patients treated in clinical trials may not be representative of the entire population of treated patients in such studies. In
addition, registration trials or larger scale Phase 3 studies, which are often conducted internationally, are inherently subject to increased operational risks
compared to earlier stage studies, including the risk that the results could vary on a region to region

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or  country  to  country  basis,  which  could  materially  adversely  affect  the  outcome  of  the  study  or  the  opinion  of  the  validity  of  the  study  results  by
applicable regulatory agencies.

From time to time, we may publicly disclose top-line or preliminary data from our clinical trials, which is based on a preliminary analysis of then available
data, and the results and related findings and conclusions are subject to change following a more comprehensive review of the data related to the particular
study or trial. We also make assumptions, estimations, calculations and conclusions as part of our analyses of such data, and we may not have received or
had the opportunity to fully and carefully evaluate all data from the particular study or trial, including all endpoints and safety data. As a result, top-line or
preliminary results that we report may differ from future results of the same studies, or different conclusions or considerations may qualify such results,
once additional data have been received and fully evaluated. Top-line or preliminary data also remain subject to audit and verification procedures that may
result in the final data being materially different from the top-line, interim, or preliminary data we previously published. When providing top-line results,
we may disclose the primary endpoint of a study before all secondary endpoints have been fully analyzed. A positive primary endpoint does not translate to
all,  or  any,  secondary  endpoints  being  met. As  a  result,  top-line  and  preliminary  data  should  be  viewed  with  caution  until  the  final  data  are  available,
including data from the full safety analysis and the final analysis of all endpoints.

Further, from time to time, we may also disclose interim data from our preclinical studies and clinical trials. Interim data from clinical trials that we may
complete are subject to the risk that one or more of the clinical outcomes may materially change as patient enrollment continues and more patient data
become available. For example, many of the results reported in our early clinical trials rely on local investigator-assessed efficacy outcomes which may be
subject  to  greater  variability  or  subjectivity  than  results  assessed  in  a  blinded,  independent,  centrally  reviewed  manner,  often  required  of  final  or  later
phase,  adequate  and  well-controlled  registration-directed  clinical  trials.  If  the  results  from  our  registration-directed  trials  are  different  from  the  results
found  in  the  earlier  studies,  we  may  need  to  terminate  or  revise  our  clinical  development  plan,  which  could  extend  the  time  for  conducting  our
development  program  and  could  have  a  material  adverse  effect  on  our  business. Also,  time-to-event  based  endpoints  such  as  duration  of  response  and
progression-free survival have the potential to change, sometimes drastically, with longer follow-up. In addition, as patients continue on therapy, there can
be no assurance given that the final safety data from studies, once fully analyzed, will be consistent with prior safety data presented, will be differentiated
from  other  similar  agents  in  the  same  class,  will  support  continued  development,  or  will  be  favorable  enough  to  support  regulatory  approvals  for  the
indications studied. Further, others, including regulatory agencies, may not accept or agree with our assumptions, estimates, calculations, conclusions or
analyses  or  may  interpret  or  weigh  the  importance  of  data  differently,  which  could  impact  the  value  of  the  particular  program,  the  approvability  or
commercialization of the particular product candidate or product and our company in general. The information we choose to publicly disclose regarding a
particular  study  or  clinical  trial  is  based  on  what  is  typically  extensive  information,  and  regulators  or  others  may  not  agree  with  what  we  determine  is
material  or  otherwise  appropriate  information  to  include  in  our  disclosure.  If  the  interim,  top-line  or  preliminary  data  that  we  report  differ  from  final
results,  or  if  others,  including  regulatory  authorities,  disagree  with  the  conclusions  reached,  our  ability  to  obtain  approval  for,  or  successfully
commercialize, our product candidates may be harmed, which could harm our business, operating results, prospects or financial condition.

Delays in clinical testing could result in increased costs to us and delay our ability to generate revenue.

Although  we  are  conducting  and  planning  for  certain  clinical  trials  relating  to  our  product  candidates,  there  can  be  no  assurance  that  the  FDA,  or  any
comparable  foreign  regulatory  authority,  will  accept  our  proposed  trial  designs.  We  may  experience  delays  in  our  clinical  trials  and  we  do  not  know
whether current or planned clinical trials will begin on time, need to be redesigned, enroll patients on time or be completed on schedule, if at all. Clinical
trials can be delayed for a variety of reasons, including delays related to:

● obtaining regulatory approval to commence a trial;
● reaching agreement on acceptable terms with prospective contract research organizations (“CROs”), and clinical trial sites, the terms of which can

be subject to extensive negotiation and may vary significantly among different CROs and trial sites;
● obtaining institutional review board (“IRB”), or ethics committee, as applicable, approval at each site;
● recruiting a sufficient number of suitable patients to participate in a trial;
● clinical sites deviating from trial protocol or dropping out of a trial;
● having patients complete a trial or return for post-treatment follow-up;
● developing and validating companion diagnostics on a timely basis, if required;
● obtaining resolution for any clinical holds that arise from the FDA or any comparable foreign regulatory authority;
● adding new clinical trial sites; or
● availability of raw materials or manufacturing sufficient quantities of product candidate for use in clinical trials.

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We could encounter delays if a clinical trial is suspended or terminated by us, by the IRBs or ethics committees of the institutions in which such trials are
being conducted, by the Data Safety Monitoring Board monitoring such trial or by the FDA or other regulatory authorities. Such authorities may impose
such a suspension or termination due to a number of factors, including failure to conduct the clinical trial in accordance with regulatory requirements or our
clinical protocols, inspection of the clinical trial operations or trial site by the FDA or other regulatory authorities resulting in the imposition of a clinical
hold, unforeseen safety issues or adverse side effects, failure to demonstrate a benefit from using a drug candidate, changes in governmental regulations or
administrative actions or lack of adequate funding to continue the clinical trial.

If  we  experience  delays  in  the  completion  of,  or  termination  of,  any  clinical  trial  of  our  product  candidates,  the  commercial  prospects  of  our  product
candidates will be harmed, and our ability to generate product revenues from any of these product candidates will be delayed, or such revenues may not be
generated  at  all.  In  addition,  any  delays  in  completing  our  clinical  trials  will  increase  our  costs,  slow  down  our  product  candidate  development  and
approval process and jeopardize our ability to commence product sales and generate revenues. Any of these occurrences may harm our business, financial
condition and prospects significantly. In addition, many of the factors that cause, or lead to, a delay in the commencement or completion of clinical trials
may also ultimately lead to the denial of regulatory approval of our product candidates.

Difficulties in the enrollment of patients in clinical trials may prevent or delay receipt of necessary regulatory approvals.

Patient enrollment, a significant factor in the timing of clinical trials, is affected by many factors including the size and nature of the patient population, the
proximity of patients to clinical sites, the eligibility criteria for the trial, the design of the clinical trial, competing clinical trials and clinicians’ and patients’
perceptions as to the potential advantages of the drug being studied in relation to other available therapies, including any new drugs that may be approved
for the indications we are investigating. Furthermore, we intend to rely on CROs and clinical trial sites to ensure the proper and timely conduct of our
clinical  trials  and  we  intend  to  have  agreements  governing  their  committed  activities,  however,  we  will  have  limited  influence  over  their  actual
performance.

We may not be able to initiate or continue clinical trials for one or more of our product candidates if we are unable to locate and enroll a sufficient number
of eligible patients to participate in these trials as required by the FDA or similar regulatory authorities outside the United States. Some of our competitors
have ongoing clinical trials for product candidates that treat the same indications that we are targeting for our product candidates, and patients who would
otherwise be eligible for our clinical trials may instead enroll in clinical trials of our competitors’ product candidates. Available therapies for the indications
we are pursuing can also affect enrollment in our clinical trials. Patient enrollment is affected by other factors including:

● the severity of the disease under investigation;
● the eligibility criteria for the study in question;
● the perceived risks and benefits of the product candidate under study;
● the efforts to facilitate timely enrollment in clinical trials;
● the patient referral practices of physicians;
● the number of clinical trials sponsored by other companies for the same patient population;
● the ability to monitor patients adequately during and after treatment; and
● the proximity and availability of clinical trial sites for prospective patients.

Our inability to enroll a sufficient number of patients for our clinical trials would result in significant delays and could require us to abandon one or more
clinical trials altogether. Enrollment delays in our clinical trials may result in increased development costs for our product candidates or future product
candidates, which would cause the value of our company to decline and limit our ability to obtain additional financing.

Russian military action in Europe may impact foreign countries in which we enrolled patients in our clinical trials.

In February 2022, Russia commenced a military invasion of Ukraine. Russia’s invasion and the ensuing response by Ukraine may prevent the FDA from
auditing our five clinical sites that enrolled a total of 17 patients in these countries during its review of our BLA for cosibelimab. If we are delayed or not
able to obtain regulatory approval, our business may be adversely affected.

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We may not receive regulatory approval for our product candidates, or their approval may be delayed, which would have a material adverse effect on
our business and financial condition.

Our  product  candidates  and  the  activities  associated  with  their  development  and  commercialization,  including  their  design,  testing,  manufacture,  safety,
efficacy, recordkeeping, labeling, storage, approval, advertising, promotion, sale and distribution, are subject to comprehensive regulation by the FDA, by
other regulatory agencies in the United States, by the European Medicines Agency and by comparable foreign regulatory authorities outside the United
States.  Failure  to  obtain  marketing  approval  for  one  or  more  of  our  product  candidates  or  any  future  product  candidate  will  prevent  us  from
commercializing  the  product  candidate.  We  have  not  received  approval  to  market  any  of  our  product  candidates  from  regulatory  authorities  in  any
jurisdiction. We have only limited experience in filing and supporting the applications necessary to gain marketing approvals and expect to rely on third-
party CROs and other third-party vendors to assist us in this process. Securing marketing approval requires the submission of extensive preclinical and
clinical data and supporting information to regulatory authorities for each therapeutic indication to establish the product candidate’s safety and efficacy.
Securing  marketing  approval  also  requires  the  submission  of  information  about  the  product  manufacturing  process  to,  and  inspection  of  manufacturing
facilities by, regulatory authorities. One or more of our product candidates or any future product candidate may not be effective, may be only moderately
effective or may prove to have undesirable or unintended side effects, toxicities or other characteristics that may preclude our obtaining marketing approval
or prevent or limit commercial use. If any of our product candidates or any future product candidate receives marketing approval, the accompanying label
may limit the approved use of our drug by severity of disease, patient group, or include contraindications, interactions, or warnings, which could limit sales
of the product.

The process of obtaining marketing approval, both in the United States and abroad, is expensive, may take many years if approval is obtained at all, and
can vary substantially based upon a variety of factors, including the type, complexity and novelty of the product candidates involved. Changes in marketing
approval policies during the development period, changes in available therapies and standards of care, changes in or the enactment of additional statutes or
regulations,  or  changes  in  regulatory  review  for  each  submitted  product  application,  may  cause  delays  in  the  approval  or  rejection  of  an  application.
Regulatory authorities have substantial discretion in the approval process and may refuse to accept any application or may decide that our study design,
including the control arm used in our study, or data are insufficient for approval and require additional preclinical studies or clinical trials. In addition,
varying interpretations of the data obtained from preclinical and clinical testing could delay, limit or prevent marketing approval of a product candidate.
Any marketing approval we ultimately obtain may be limited or subject to restrictions or post-approval commitments that render the approved product not
commercially viable.

Under  the  FDA’s  accelerated  approval  regulations,  which  only  apply  to  certain  drug  products,  the  FDA  may  grant  marketing  approval  for  a  new  drug
product on the basis of adequate and well-controlled clinical trials establishing that the drug product has an effect on a surrogate endpoint that is reasonably
likely, based on epidemiologic, therapeutic, pathophysiologic, or other evidence, to predict clinical benefit or on the basis of an effect on a clinical endpoint
other than survival or irreversible morbidity. While we may undertake development programs for one or more of our product candidates that we believe, if
successful, could support a submission for marketing approval under the accelerated approval regulations, we may ultimately fail to meet the criteria to do
so, which may cause delays in the approval or rejection of an application.

If we experience delays in obtaining approval or if we fail to obtain approval of one or more of our product candidates or any future product candidate, the
commercial prospects for our product candidates may be harmed and our ability to generate revenue will be materially impaired.

In addition, even if we were to obtain approval, regulatory authorities may approve any of our product candidates or any future product candidate for fewer
or  more  limited  indications  than  we  request,  may  not  approve  the  price  we  intend  to  charge  for  our  products,  may  grant  approval  contingent  on  the
performance of costly post-marketing studies, including clinical trials, or may approve a product candidate with a label that does not include the labeling
claims necessary or desirable for the successful commercialization of that product candidate. The regulatory authority may also require the label to contain
warnings,  contraindications,  or  precautions  that  limit  the  commercialization  of  that  product. Any  of  these  scenarios  could  compromise  the  commercial
prospects for one or more of our product candidates or any future product candidate.

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If serious adverse or unacceptable side effects are identified during the development of one or more of our product candidates or any future product
candidate, we may need to abandon or limit our development of some of our product candidates.

If one or more of our product candidates or any future product candidate are associated with undesirable side effects or adverse events in clinical trials or
have characteristics that are unexpected, we may need to abandon their development or limit development to more narrow uses or subpopulations in which
the adverse events, undesirable side effects or other characteristics are less prevalent, less severe or more acceptable from a risk-benefit perspective. In our
industry, many compounds that initially showed promise in early-stage testing have later been found to cause serious adverse events that prevented further
development of the compound. In the event that our clinical trials reveal a high or unacceptable severity and prevalence of adverse events, our trials could
be suspended or terminated and the FDA or comparable foreign regulatory authorities could order us to cease further development or deny approval of one
or  more  of  our  product  candidates  or  any  future  product  candidate  for  any  or  all  targeted  indications.  The  FDA  could  also  issue  a  letter  requesting
additional data or information prior to making a final decision regarding whether to approve a product candidate. The number of requests for additional
data or information issued by the FDA in recent years has increased and resulted in substantial delays in the approval of several new drugs. Adverse events
or  undesirable  side  effects  caused  by  one  or  more  of  our  product  candidates  or  any  future  product  candidate  could  also  result  in  the  inclusion  of
unfavorable information in our product labeling, denial of regulatory approval by the FDA or other regulatory authorities for any or all targeted indications,
and in turn prevent us from commercializing and generating revenues from the sale of that product candidate. Adverse events or drug-related side effects
could affect patient recruitment or the ability of enrolled patients to complete the trial and could result in potential product liability claims.

Additionally,  if  one  or  more  of  our  product  candidates  or  any  future  product  candidate  receives  marketing  approval  and  we  or  others  later  identify
undesirable side effects caused by this product, a number of potentially significant negative consequences could result, including:

● regulatory  authorities  may  require  the  addition  of  unfavorable  labeling  statements,  including  specific  warnings,  black  box  warnings,  adverse

reactions, precautions, and/or contraindications;

● regulatory authorities may suspend or withdraw their approval of the product, and/or require it to be removed from the market;
● we may be required to change the way the product is administered, conduct additional clinical trials or change the labeling of the product; or
● our reputation may suffer.

Any of these events could prevent us from achieving or maintaining market acceptance of any of our product candidates or any future product candidate or
could substantially increase our commercialization costs and expenses, which in turn could delay or prevent us from generating significant revenues, or any
revenues, from its sale.

Public  concern  regarding  the  safety  of  drug  products  could  delay  or  limit  our  ability  to  obtain  regulatory  approval,  result  in  the  inclusion  of
unfavorable information in our labeling, or require us to undertake other activities that may entail additional costs.

In light of widely publicized events concerning the safety risk of certain drug products, the FDA, members of Congress, the Government Accountability
Office, medical professionals and the general public have raised concerns about potential drug safety issues. These events have resulted in the withdrawal
of drug products, revisions to drug labeling that further limit use of the drug products and the establishment of risk management programs. The Food and
Drug Administration Amendments Act of 2007 (“FDAAA”), grants significant expanded authority to the FDA, much of which is aimed at improving the
safety of drug products before and after approval. In particular, the new law authorizes the FDA to, among other things, require post-approval studies and
clinical trials, mandate changes to drug labeling to reflect new safety information and require risk evaluation and mitigation strategies for certain drugs,
including  certain  currently  approved  drugs.  It  also  significantly  expands  the  federal  government’s  clinical  trial  registry  and  results  databank,  which  we
expect will result in significantly increased government oversight of clinical trials. Under the FDAAA, companies that violate these and other provisions of
the new law are subject to substantial civil monetary penalties, among other regulatory, civil and criminal penalties. The increased attention to drug safety
issues  may  result  in  a  more  cautious  approach  by  the  FDA  in  its  review  of  data  from  our  clinical  trials.  Data  from  clinical  trials  may  receive  greater
scrutiny, particularly with respect to safety, which may make the FDA or other regulatory authorities more likely to require additional preclinical studies or
clinical trials. If the FDA requires us to conduct additional preclinical studies or clinical trials prior to approving any of our product candidates, our ability
to obtain approval of this product candidate will be delayed. If the FDA requires us to provide additional clinical or preclinical data following the approval
of  any  of  our  product  candidates,  the  indications  for  which  this  product  candidate  is  approved  may  be  limited  or  there  may  be  specific  warnings  or
limitations on dosing, and our efforts to commercialize our product candidates may be otherwise adversely impacted.

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Even if one or more of our product candidates receives regulatory approval, it and any other products we may market will remain subject to substantial
regulatory scrutiny.

If  one  or  more  of  our  product  candidates  that  we  may  license  or  acquire  is  approved,  the  approved  product  candidate  will  be  subject  to  ongoing
requirements  and  review  by  the  FDA  and  other  regulatory  authorities. These  requirements  include  labeling,  packaging,  storage,  advertising,  promotion,
record-keeping and submission of safety and other post-market information and reports, registration and listing requirements, cGMP requirements relating
to manufacturing, quality control, quality assurance and corresponding maintenance of records and documents, requirements regarding the distribution of
samples to physicians and recordkeeping of the drug, and requirements regarding company presentations and interactions with health care professionals.

The FDA, or other regulatory authorities, may also impose requirements for costly post-marketing studies or clinical trials and surveillance to monitor the
safety or efficacy of the product. The FDA and other applicable regulatory authorities closely regulate the post-approval marketing and promotion of drugs
to  ensure  drugs  are  marketed  only  for  the  approved  indications  and  in  accordance  with  the  provisions  of  the  approved  labeling.  The  FDA  and  other
applicable  regulatory  authorities  impose  stringent  restrictions  on  manufacturers’  communications  regarding  off-label  use  and  if  we  do  not  market  our
products for only their approved indications, we may be subject to enforcement action for off-label marketing. Violations of the Federal Food, Drug and
Cosmetic Act relating to the promotion of prescription drugs may lead to investigations, civil claims, and/or criminal charges alleging violations of federal
and state health care fraud and abuse laws, as well as state consumer protection laws.

In  addition,  later  discovery  of  previously  unknown  adverse  events  or  other  problems  with  our  products,  manufacturers  or  manufacturing  processes,  or
failure to comply with regulatory requirements, may yield various results, including:

● restrictions on such products, operations, manufacturers or manufacturing processes;
● restrictions on the labeling or marketing of a product;
● restrictions on product distribution or use;
● requirements to conduct post-marketing studies or clinical trials;
● warning letters, untitled letters, import alerts, and/or inspection observations;
● withdrawal of the products from the market;
● refusal to approve pending applications or supplements to approved applications that we submit;
● recall of products;
● fines, restitution or disgorgement of profits;
● suspension or withdrawal of marketing or regulatory approvals;
● suspension of any ongoing clinical trials;
● refusal to permit the import or export of our products;
● product seizure; or
● injunctions, consent decrees, and/or the imposition of civil or criminal penalties.

The FDA’s policies, or the policies of other applicable regulatory authorities, may change and additional government regulations may be enacted that could
prevent,  limit  or  delay  regulatory  approval  of  our  product  candidates,  or  negatively  affect  those  products  for  which  we  may  have  already  received
regulatory approval, if any. If we are slow or unable to adapt to changes in existing requirements or the adoption of new requirements or policies, or if we
are not able to maintain regulatory compliance, we may be subject to the various actions listed above, including losing any marketing approval that we may
have obtained.

Regulatory approval by the FDA, or any similar regulatory authorities outside the United States, is limited to those specific indications and conditions
for which clinical safety and efficacy have been demonstrated.

Any  regulatory  approval  is  limited  to  those  indications  for  use  for  which  a  product  is  deemed  to  be  safe  and  effective  by  the  FDA,  or  other  similar
regulatory  authorities  outside  the  United  States.  In  addition  to  the  regulatory  approval  required  for  new  drug  products,  new  formulations  or  new  or
additional indications for use for an already approved product also require regulatory approval. If we are not able to obtain regulatory approval for any
desired future indications for our products, our ability to effectively market and sell our products may be prevented or reduced, and our business may be
adversely affected.

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While physicians may choose to prescribe drugs for uses that are not described in the product’s labeling and for uses that differ from those tested in clinical
studies and approved by the regulatory authorities, our ability to promote products is limited to those indications that are specifically approved by the FDA,
or similar regulatory authorities outside the United States. These “off-label” uses are common across medical specialties and may constitute an appropriate
treatment for some patients in certain circumstances. Regulatory authorities in the U.S. generally do not regulate the practice of medicine or behavior of
physicians in their choice of treatments. Regulatory authorities do, however, restrict promotion by pharmaceutical companies on the subject of off-label
use. If our promotional activities fail to comply with these regulations or guidelines, we may be subject to warnings from, or enforcement action by, these
authorities. In addition, our failure to follow FDA, or any applicable foreign regulatory authority, rules and guidelines relating to promotion and advertising
may  cause  the  FDA,  or  such  applicable  foreign  regulatory  authority,  to  suspend  or  withdraw  an  approved  product  from  the  market,  require  a  recall  or
institute fines or penalties, or could result in disgorgement of money, operating restrictions, injunctions or criminal prosecution, any of which could harm
our business.

We will need to obtain FDA approval of any proposed product brand names, and any failure or delay associated with such approval may adversely
impact our business.

A pharmaceutical product cannot be marketed in the U.S. or other countries until we have completed a rigorous and extensive regulatory review process,
including  approval  of  a  brand  name. Any  brand  names  we  intend  to  use  for  our  product  candidates  will  require  approval  from  the  FDA  regardless  of
whether we have secured a formal trademark registration from the United States Patent and Trademark Office (“USPTO”). The FDA typically conducts a
review of proposed product brand names, including an evaluation of the potential for confusion with other product names. The FDA may also object to a
product brand name if it believes the name inappropriately implies medical claims. If the FDA objects to any of our proposed product brand names, we
may be required to adopt an alternative brand name for our product candidates. If we adopt an alternative brand name, we would lose the benefit of our
existing trademark applications for such product candidate and may be required to expend significant additional resources in an effort to identify a suitable
product brand name that would qualify under applicable trademark laws, not infringe the existing rights of third parties and be acceptable to the FDA. We
may be unable to build a successful brand identity for a new trademark in a timely manner or at all, which would limit our ability to commercialize our
product candidates.

If our competitors develop treatments for any of our product candidates’ target indications and those competitor products are approved more quickly,
marketed more successfully or demonstrated to be more effective, the commercial opportunity for our product candidate will be reduced or eliminated.

The biotechnology and pharmaceutical industries are subject to rapid and intense technological change. We face, and will continue to face, competition in
the development and marketing of our product candidates from academic institutions, government agencies, research institutions and biotechnology and
pharmaceutical  companies.  There  can  be  no  assurance  that  developments  by  others  will  not  render  one  or  more  of  our  product  candidates  obsolete  or
noncompetitive.  Furthermore,  new  developments,  including  the  development  of  other  drug  technologies  and  methods  of  preventing  the  incidence  of
disease,  occur  in  the  pharmaceutical  industry  at  a  rapid  pace.  These  developments  may  render  one  or  more  of  our  product  candidates  obsolete  or
noncompetitive.

Competitors may seek to develop alternative formulations that do not directly infringe on our in-licensed patent rights. The commercial opportunity for one
or more of our product candidates could be significantly harmed if competitors are able to develop alternative formulations outside the scope of our in-
licensed patents. Compared to us, many of our potential competitors have substantially greater:

● capital resources;
● development resources, including personnel and technology;
● clinical trial experience;
● regulatory experience;
● expertise in prosecution of intellectual property rights; and
● manufacturing, distributing and sales and marketing experience.

As  a  result  of  these  factors,  our  competitors  may  obtain  regulatory  approval  of  their  products  more  rapidly  than  we  are  able  to  or  may  obtain  patent
protection or other intellectual property rights that limit our ability to develop or commercialize one or more of our product candidates. Our competitors
may also develop drugs that are more effective, safe, useful and less costly than ours and may be more successful than us in manufacturing and marketing
their products. Smaller or early-stage companies may also prove to be significant competitors, particularly through collaborative arrangements with large
and established companies. We will also face competition from

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these third parties in establishing clinical trial sites, in patient registration for clinical trials, and in identifying and in-licensing new product candidates.

Further, generic therapies are typically sold at lower prices than branded therapies and are generally preferred by hospital formularies and managed care
providers of health services. We anticipate that, if approved, our product candidates will face increasing competition in the form of generic versions of
branded products of competitors, including those that have lost or will lose their patent exclusivity. In the future, we may face additional competition from
a generic form of our own candidates when the patents covering them begin to expire, or earlier if the patents are successfully challenged. If we are unable
to demonstrate to physicians and payers that the key differentiating features of our product candidates translate to overall clinical benefit or lower cost of
care, we may not be able to compete with generic alternatives.

If any of our product candidates are successfully developed but do not achieve broad market acceptance among physicians, patients, healthcare payors
and the medical community, the revenues that any such product candidates generate from sales will be limited.

Even if our product candidates receive regulatory approval, they may not gain market acceptance among physicians, patients, healthcare payors and the
medical community. Coverage and reimbursement of our product candidates by third-party payors, including government payors, generally would also be
necessary for commercial success. The degree of market acceptance of any approved products would depend on a number of factors, including, but not
necessarily limited to:

● the efficacy and safety as demonstrated in clinical trials;
● the timing of market introduction of such product candidates as well as competitive products;
● the clinical indications for which the drug is approved;
● acceptance by physicians, major operators of hospitals and clinics and patients of the product as a safe and effective treatment;
● the potential and perceived advantages of product candidates over alternative treatments;
● the safety of product candidates in a broader patient group (i.e. based on actual use);
● the cost of treatment in relation to alternative treatments;
● the availability of adequate reimbursement and pricing by third parties and government authorities;
● changes in regulatory requirements by government authorities for our product candidates
● relative convenience and ease of administration;
● the prevalence and severity of side effects and adverse events;
● the effectiveness of our sales and marketing efforts; and
● unfavorable publicity relating to the product.

If any product candidate is approved but does not achieve an adequate level of acceptance by physicians, hospitals, healthcare payors and patients, we may
not generate sufficient revenue from these products and in turn we may not become or remain profitable.

Reimbursement may be limited or unavailable in certain market segments for our product candidates, which could make it difficult for us to sell our
products profitably.

There  is  significant  uncertainty  related  to  the  third-party  coverage  and  reimbursement  of  newly  approved  drugs.  Such  third-party  payors  include
government  health  programs  such  as  Medicare,  managed  care  providers,  private  health  insurers  and  other  organizations. We  intend  to  seek  approval  to
market our product candidates in the U.S., Europe and other selected foreign jurisdictions. Market acceptance and sales of our product candidates in both
domestic and international markets will depend significantly on the availability of adequate coverage and reimbursement from third-party payors for any of
our product candidates and may be affected by existing and future health care reform measures.

Government and other third-party payors are increasingly attempting to contain healthcare costs by limiting both coverage and the level of reimbursement
for new drugs and, as a result, they may not cover or provide adequate payment for our product candidates. These payors may conclude that our product
candidates are less safe, less effective or less cost-effective than existing or future introduced products, and third-party payors may not approve our product
candidates for coverage and reimbursement or may cease providing coverage and reimbursement for these product candidates.

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Obtaining coverage and reimbursement approval for a product from a government or other third-party payor is a time consuming and costly process that
could require us to provide to the payor supporting scientific, clinical and cost-effectiveness data for the use of our products. We may not be able to provide
data sufficient to gain acceptance with respect to coverage and reimbursement. If reimbursement of our future products is unavailable or limited in scope or
amount,  or  if  pricing  is  set  at  unsatisfactory  levels,  it  may  impact  the  market  acceptance  of  our  products  and  we  may  be  unable  to  achieve  or  sustain
profitability.

In  some  foreign  countries,  particularly  in  the  European  Union,  the  pricing  of  prescription  pharmaceuticals  is  subject  to  governmental  control.  In  these
countries, pricing negotiations with governmental authorities can take considerable time after the receipt of marketing approval for a product candidate. To
obtain reimbursement or pricing approval in some countries, we may be required to conduct additional clinical trials that compare the cost-effectiveness of
our product candidates to other available therapies. If reimbursement of our product candidates is unavailable or limited in scope or amount in a particular
country, or if pricing is set at unsatisfactory levels, we may be unable to achieve or sustain profitability of our products in such country.

If we are unable to establish sales, marketing, and distribution capabilities or to enter into agreements with third parties to market and sell our product
candidates, we may be unsuccessful in commercializing our product candidates, if they are approved.

We currently do not have a marketing or sales organization for the marketing, sales and distribution of pharmaceutical products. In order to commercialize
any approved product candidate, we would need to build marketing, sales, distribution, managerial and other non-technical capabilities, or arrange for third
parties to perform these services, and we may be unsuccessful in doing so. In the event of successful development and regulatory approval of any of our
current or future product candidates, we expect to build a targeted specialist sales force to market or co-promote the product. There are risks involved with
establishing our own sales, marketing and distribution capabilities. 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 and marketing personnel.

Factors that may inhibit our efforts to commercialize our products on our own include:

● our inability to recruit, train and retain adequate numbers of effective sales and marketing personnel;
● the inability of sales personnel to obtain access to physicians or persuade adequate numbers of physicians to prescribe any future products;
● the  lack  of  complementary  or  other  products  to  be  offered  by  sales  personnel,  which  may  put  us  at  a  competitive  disadvantage  from  the

perspective of sales efficiency relative to companies with more extensive product lines; and
● unforeseen costs and expenses associated with creating our own sales and marketing organization.

We face potential product liability exposure, and if successful claims are brought against us, we may incur substantial liability for one or more of our
product candidates or a future product candidate we may license or acquire and may have to limit their commercialization.

The use of one or more of our product candidates and any future product candidate we may license or acquire in clinical trials and the sale of any products
for which we obtain marketing approval expose us to the risk of product liability claims. For example, we may be sued if any product we develop allegedly
causes injury or is found to be otherwise unsuitable during clinical testing, manufacturing, marketing or sale. Any such product liability claims may include
allegations of defects in manufacturing, defects in design, a failure to warn of dangers inherent in the product, negligence, strict liability or a breach of
warranties. Product liability claims might be brought against us by consumers, health care providers or others using, administering or selling our products.
If  we  cannot  successfully  defend  ourselves  against  these  claims,  we  will  incur  substantial  liabilities.  Regardless  of  merit  or  eventual  outcome,  liability
claims may result in:

● withdrawal of clinical trial participants;
● suspension or termination of clinical trial sites or entire trial programs;
● decreased demand for any product candidates or products that we may develop;
● initiation of investigations by regulators;
● impairment of our business reputation;

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● costs of related litigation;
● substantial monetary awards to patients or other claimants;
● loss of revenues;
● reduced resources of our management to pursue our business strategy; and
● the inability to commercialize our product candidate or future product candidates.

We have obtained, and will continue to obtain, limited product liability insurance coverage for any and all of our current and future clinical trials. However,
our  insurance  coverage  may  not  reimburse  us  or  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 we obtain marketing approval for one or more of our product candidates in development, we intend
to expand our insurance coverage to include the sale of commercial products, but we may be unable to obtain commercially reasonable product liability
insurance  for  any  products  approved  for  marketing.  On  occasion,  large  judgments  have  been  awarded  in  class  action  lawsuits  based  on  drugs  that  had
unanticipated side effects. A successful product liability claim or series of claims brought against us could cause our stock price to fall and, if judgments
exceed our insurance coverage, could decrease our cash and adversely affect our business.

Risks Related to Reliance on Third Parties

We  have  contracted  with  third  parties  for  the  manufacture  of  our  approved  products,  if  any.  If  such  contract  manufacturer  fails  to  timely  produce
sufficient product volume, to pass regulatory inspections, or to comply with applicable regulations, the commercialization of our product candidates
may be delayed, we may be unable to meet market demand, and we may lose potential revenues.

The manufacture of pharmaceutical products requires significant expertise and capital investment, including the development of advanced manufacturing
techniques and process controls, and the use of specialized processing equipment. We have entered into development and supply agreements with one or
more  contract  manufacturers  for  the  completion  of  pre-commercialization  manufacturing  development  activities  and  the  manufacture  of  commercial
supplies for each of our product candidates. Any termination or disruption of our relationships with our contract manufacturers may materially harm our
business and financial condition and frustrate any commercialization efforts for each respective product candidate.

All of our contract manufacturers must comply with strictly enforced federal, state and foreign regulations, including cGMP requirements enforced by the
FDA through its establishment inspection program. We are required by law to establish adequate oversight and control over raw materials, components and
finished products furnished by our third-party suppliers and contract manufacturers, but we have little control over their compliance with these regulations.

Any  failure  to  pass  regulatory  inspections  or  comply  with  applicable  regulations  may  result  in  fines  and  civil  penalties,  suspension  of  production,
restrictions on imports and exports, suspension or delay in product approval, product seizure or recall, or withdrawal of product approval, and would limit
the availability of our product and customer confidence in our product. Any manufacturing defect or error discovered after products have been produced
and distributed could result in even more significant consequences, including costly recall procedures, re-stocking costs, potential for breach of contract
claims, damage to our reputation and potential for product liability claims.

If the contract manufacturers upon whom we rely to manufacture one or more of our product candidates, and any future product candidate we may in-
license, fails to deliver the required commercial quantities on a timely basis at commercially reasonable prices, we would likely be unable to meet demand
for our products and we would lose potential revenues.

We  rely,  and  expect  to  continue  to  rely,  on  third  parties  to  conduct  our  preclinical  studies  and  clinical  trials.  Those  third  parties  may  perform
unsatisfactorily, fail to meet deadlines for trial completion, or to comply with applicable regulatory requirements.

We  rely  on  third-party  CROs  and  site  management  organizations  to  conduct  some  of  our  preclinical  studies  and  all  our  clinical  trials  for  our  product
candidates,  and  plan  to  do  the  same  for  any  future  product  candidate.  We  expect  to  continue  to  rely  on  third  parties,  such  as  CROs,  site  management
organizations, image reading vendors, laboratories, clinical data management organizations, medical institutions and clinical investigators, to conduct some
of our preclinical studies and all of our clinical trials. The agreements with these

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third parties might terminate for a variety of reasons, including a failure to perform by the third parties. If we need to enter into alternative arrangements,
that could delay our product development activities.

Our  reliance  on  these  third  parties  for  research  and  development  activities  reduces  our  control  over  these  activities  but  does  not  relieve  us  of  our
responsibilities. For example, we remain responsible for ensuring that each of our preclinical studies and clinical trials are conducted in accordance with
the general investigational plan and protocols for the trial and for ensuring that our preclinical studies are conducted in accordance with good laboratory
practices (“GLPs”) as appropriate. Moreover, the FDA requires us to comply with standards, commonly referred to as good clinical practices (“GCPs”), for
conducting,  recording  and  reporting  the  results  of  clinical  trials  to  assure  that  data  and  reported  results  are  credible  and  accurate  and  that  the  rights,
integrity  and  confidentiality  of  trial  participants  are  protected.  Regulatory  authorities  enforce  these  requirements  through  periodic  inspections  of  trial
sponsors, clinical investigators and trial sites. If we or any of our clinical research organizations or other third party vendors, institutions or investigators
fail to pass regulatory inspections or fail to comply with applicable GCPs, the clinical data generated in our clinical trials may be deemed unreliable and
the FDA or comparable foreign regulatory authorities may require us to perform additional clinical trials before approving our marketing applications. We
cannot assure you that upon inspection by a regulatory authority, such regulatory authority will determine that any of our clinical trials complies with GCP
regulations. In addition, our clinical trials must be conducted with product produced under cGMP regulations. Our failure to comply with these regulations
may require us to repeat clinical trials, which would delay the regulatory approval process. We also are required to register ongoing clinical trials and post
the results of completed clinical trials on a government-sponsored database, ClinicalTrials.gov, within specified timeframes. Failure to do so can result in
fines, adverse publicity and civil and criminal sanctions.

The third parties with whom we have contracted to help perform our preclinical studies and/or clinical trials may also have relationships with other entities,
some of which may be our competitors. If these third parties do not successfully carry out their contractual duties, meet expected deadlines or conduct our
preclinical studies or clinical trials in accordance with regulatory requirements or our stated protocols, we will not be able to obtain, or may be delayed in
obtaining,  marketing  approvals  for  our  product  candidates  and  will  not  be  able  to,  or  may  be  delayed  in  our  efforts  to,  successfully  commercialize  our
product candidates.

If any of our relationships with these third-party CROs or site management organizations terminate, we may not be able to enter into arrangements with
alternative  CROs  or  site  management  organizations  or  to  do  so  on  commercially  reasonable  terms.  Switching  or  adding  additional  CROs  or  site
management organizations involves additional cost and requires management time and focus. In addition, there is a natural transition period when a new
CRO  or  site  management  organization  commences  work.  As  a  result,  delays  could  occur,  which  could  compromise  our  ability  to  meet  our  desired
development timelines. Though we carefully manage our relationships with our CROs or site management organizations, there can be no assurance that we
will not encounter similar challenges or delays in the future. Forces beyond our control could disrupt the ability of our third-party CROs, site management
organizations, image reading vendors, laboratories, clinical data management organizations, medical institutions and clinical investigators to conduct our
preclinical studies and our clinical trials for our product candidates and for any future product candidate.

We rely, and expect to continue to rely, on third parties for the manufacture of our product candidates for preclinical and clinical testing and for the
future commercialization of our approved products, if any. Reliance on third parties increases the risk that we will not have sufficient quantities of our
products or such quantities at an acceptable cost, which could delay, prevent or impair our development or commercialization efforts.

We do not have any manufacturing facilities. We rely, and expect to continue to rely, on third parties for the manufacture of our product candidates for
preclinical and clinical testing, and plan to do so for commercial manufacture of any of our product candidates that may receive marketing approval. This
reliance  on  third  parties  increases  the  risk  that  we  will  not  have  sufficient  quantities  of  our  product  candidates  or  any  future  product  candidate  or  such
quantities at an acceptable cost or quality, which could delay, prevent or impair our development or commercialization efforts.

We also expect to rely on third-party manufacturers or third-party collaborators for the manufacture of commercial supply of any product candidates for
which our collaborators or we may obtain marketing approval. We may be unable to establish or maintain any agreements with third-party manufacturers
or to do so on acceptable terms. Even if we are able to establish agreements with third-party manufacturers, reliance on third-party manufacturers entails
additional risks, including:

● reliance on the third party for regulatory compliance and quality assurance, while still being required by law to establish adequate oversight and

control over products furnished by that third party;

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● the possible breach of the manufacturing agreement by the third party;
● manufacturing delays if our third-party manufacturers are unable to obtain raw materials due to supply chain disruptions, give greater priority to
the  supply  of  other  products  over  our  product  candidates  or  otherwise  do  not  satisfactorily  perform  according  to  the  terms  of  the  agreement
between us;

● the possible misappropriation of our proprietary information, including our trade secrets and know-how; and
● the possible termination or nonrenewal of the agreement by the third party at a time that is costly or inconvenient for us.

We rely on our third-party manufacturers to produce or purchase from third-party suppliers the materials necessary to produce our product candidates for
our preclinical and clinical trials. There are a limited number of suppliers for raw materials that we use to manufacture our drugs and there may be a need
to  assess  alternate  suppliers  to  prevent  a  possible  disruption  of  the  manufacture  of  the  materials  necessary  to  produce  our  product  candidates  for  our
preclinical and clinical trials, and if approved, ultimately for commercial sale. We do not have any control over the process or timing of the acquisition of
these raw materials by our third-party manufacturers. Forces beyond our control could disrupt the global supply chain and impact our or our third-party
manufacturers’ ability to obtain raw materials or other products necessary to manufacture our product candidates. Any significant delay in the supply of a
product candidate, or the raw material components thereof, for an ongoing preclinical or clinical trial due to the need to replace a third-party manufacturer
could considerably delay completion of our preclinical or clinical trials, product testing and potential regulatory approval of our product candidates. If our
third-party  manufacturers  or  we  are  unable  to  purchase  these  raw  materials  after  regulatory  approval  has  been  obtained  for  a  product  candidate,  the
commercial launch of that product candidate would be delayed or there would be a shortage in supply, which would impair our ability to generate revenues
from the sale of our product candidates.

The facilities used by our third-party manufacturers to manufacture our product candidates must be approved by the FDA pursuant to inspections that will
be  conducted  after  we  submit  an  NDA  or  BLA  to  the  FDA.  We  are  required  by  law  to  establish  adequate  oversight  and  control  over  raw  materials,
components and finished products furnished by our third-party manufacturers, but we do not control the day-to-day manufacturing operations of, and are
dependent on, our third-party manufacturers for compliance with cGMP regulations for manufacture of our product candidates. Third-party manufacturers
may not be able to comply with the cGMP regulations or similar regulatory requirements outside the United States. Our failure, or the failure of our third-
party  manufacturers,  to  comply  with  applicable  regulations  and  pass  regulatory  inspections  could  result  in  sanctions  being  imposed  on  us,  including
clinical  holds,  fines,  injunctions,  restrictions  on  imports  and  exports,  civil  penalties,  delays,  suspension  or  withdrawal  of  approvals,  license  revocation,
seizures or recalls of product candidates or products, operating restrictions and criminal prosecutions, any of which could significantly and adversely affect
supplies of our products.

In  2023,  our  contract  manufacturer  for  cosibelimab  received  certain  observations  from  the  FDA  on  Form  483  related  to  a  multi  -  sponsor  on  -  site
inspection. In December 2023, the FDA issued a CRL for the cosibelimab BLA due to those inspection issues. Following resolution of the inspection issues
at  the  third  -  party  contract  manufacturing  organization  raised  in  the  CRL,  a  resubmission  of  the  BLA  is  planned  to  support  the  marketing  approval  of
cosibelimab. There is no guarantee that the FDA will agree with the response and remediations in a timely manner or at all, which could negatively impact
our ability to obtain regulatory approval for cosibelimab or obtain approval within reasonable timelines. Any further delays in approval will continue to
increase our costs and could further delay or impede our ability to commence product sales and generate revenues.

One  or  more  of  the  product  candidates  that  we  may  develop  may  compete  with  other  product  candidates  and  products  for  access  to  manufacturing
facilities.  There  are  a  limited  number  of  manufacturers  that  operate  under  cGMP  regulations  and  that  might  be  capable  of  manufacturing  for  us. Any
performance  failure  on  the  part  of  our  existing  or  future  third-party  manufacturers  could  delay  clinical  development  or  marketing  approval. We  do  not
currently have arrangements in place for redundant supply or a second source for bulk drug substance or the manufacture of drug product. If our current
third-party  manufacturers  cannot  perform  as  agreed,  we  may  be  required  to  replace  such  manufacturers.  We  may  incur  added  costs  and  delays  in
identifying and qualifying any replacement manufacturers.

The U.S. DEA restricts the importation of a controlled substance finished drug product when the same substance is commercially available in the United
States, which could reduce the number of potential alternative manufacturers for one or more of our product candidates.

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

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We  also  expect  to  rely  on  other  third  parties  to  store  and  distribute  drug  supplies  for  our  clinical  trials.  Any  performance  failure  on  the  part  of  our
distributors  could  delay  clinical  development  or  marketing  approval  of  our  product  candidates  or  commercialization  of  our  products,  if  approved,
producing additional losses and depriving us of potential product revenue.

We rely on clinical data and results obtained by third parties that could ultimately prove to be inaccurate or unreliable.

As  part  of  our  strategy  to  mitigate  development  risk,  we  seek  to  develop  product  candidates  with  well-studied  mechanisms  of  action  and  may  utilize
biomarkers  to  assess  potential  clinical  efficacy  early  in  the  development  process.  This  strategy  necessarily  relies  upon  clinical  data  and  other  results
obtained  by  third  parties  that  may  ultimately  prove  to  be  inaccurate  or  unreliable.  Further,  such  clinical  data  and  results  may  be  based  on  products  or
product candidates that are significantly different from our product candidates or any future product candidate. If the third-party data and results we rely
upon prove to be inaccurate, unreliable or not applicable to our product candidates or future product candidate, we could make inaccurate assumptions and
conclusions about our product candidates and our research and development efforts could be compromised.

Risks Relating to Legislation and Regulation Affecting the Biopharmaceutical and Other Industries

We  cannot  predict  the  likelihood,  nature  or  extent  of  government  regulation  that  may  arise  from  future  legislation  or  administrative  or  executive
action, either in the United States or abroad.

We cannot predict the likelihood, nature or extent of how government regulation that may arise from future legislation or administrative or executive action
taken by the U.S. presidential administration may impact our business and industry. In particular, the U.S. President has taken several executive actions,
specifically  through  rulemaking  and  guidance,  that  could  impact  the  pharmaceutical  business  and  industry. A  few  of  the  major  administrative  actions
include:

1. On October 9, 2019, CMS issued a proposed rule entitled, Modernizing and Clarifying the Physician Self-Referral Regulations and on the same
day  the  HHS  Office  of  Inspector  General  issued  a  similar  rule,  entitled  Revisions  to  Safe  Harbors  Under  the Anti-Kickback  Statute,  and  Civil
Monetary penalty Rules Regarding Beneficiary Inducements. The proposed rules are an effort to reform regulations dealing with anti-kickback
and self-referral laws. The proposals are attempting to allow certain financial arrangements that would otherwise violate anti-kickback and self-
referral laws for providers that are participating in value-based payment arrangements. The proposed rule could impact drug purchasing behavior
to ensure providers are within their budget and/or restructure existing payment structures between providers and manufacturers.

2. On  October  30,  2019,  the Administration  issued  an  advanced  notice  of  proposed  rulemaking  (“ANPRM”)  entitled,  International  Pricing  Index
Model for Medicare Part B Drugs. This ANPRM is soliciting feedback on a potential proposal to align United States drug prices in the Medicare
Part  B  program  with  international  prices.  It  also  solicits  public  feedback  on  a  policy  that  would  allowing  private-sector  vendors  to  negotiate
prices, take title to drugs, and improve competition for hospital and physician business. Although this is only a notice for a potential rule, it signals
the Administration’s desire to regulatorily influence the United States drug pricing system that could adversely affect the industry.

3. On November 15, 2019, CMS issued a proposed rule entitled, Transparency in Coverage and finalized the Calendar Year (“CY”) 2020 Outpatient
Prospective  Payment  System  (“OPPS”)  &  Ambulatory  Surgical  Center  Price  Transparency  Requirements  for  Hospitals  to  Make  Standard
Charges Rule. Together the rules would increase price transparency through health plans and in hospitals. The affects may influence consumer
purchasing  habits  in  the  health  care  sector  as  a  whole.  Although  the  transparency  provisions  are  not  yet  in  effect  and  the  hospital  price
transparency requirements are subject to litigation, there could be implications for the industry related to drug pricing if or when it is enacted.

4. On November 18, 2019, CMS issued a proposed rule entitled, Medicaid Fiscal Accountability Regulation (“MFAR”). The proposed rule would
significantly  impact  states’  ability  to  finance  their  Medicaid  programs.  If  finalized,  the  MFAR  could  force  states  to  restructure  their  Medicaid
financing that could disincentivize or change state prescription drug purchasing behavior that would adversely impact the industry.

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5. On  December  18,  2019,  the  FDA  issued  a  proposed  rule  entitled,  Importation  of  Prescription  Drugs.  The  proposed  rule  would  allow  the
importation  of  certain  prescription  drugs  from  Canada.  If  finalized,  states  or  other  non-federal  government  entities  would  be  able  to  submit
importation  program  proposals  to  FDA  for  review  and  authorization.  This  proposed  rule  could  also  influence  pricing  practices  in  the  United
States.

6. On January 30, 2020, CMS issued a state waiver option entitled, Health Adult Opportunity (“HAO”). The HAO would allow states to restructure
benefits  and  coverage  policies  for  their  Medicaid  programs. The  HAO  will  provide  states  administrative  flexibilities  in  exchange  for  a  capped
federal share. The cap on the federal share is commonly referred to as a “block grant.” Importantly, the HAO allows states to set formularies that
align with Essential Health Benefit requirements while still requiring manufacturers to participate in the Medicaid Rebate Program. Depending on
utilization of the HAO by states, it could impact the industry – especially if states elect to use a formulary.

We are subject to new legislation, regulatory proposals and managed care initiatives that may increase our costs of compliance and adversely affect our
ability to market our products, obtain collaborators and raise capital.

In  the  United  States  and  certain  foreign  jurisdictions,  there  have  been,  and  we  expect  there  will  continue  to  be,  a  number  of  legislative  and  regulatory
changes  to  the  healthcare  system.  In  March  2010,  the  Patient  Protection  and  Affordable  Care  Act,  as  amended  by  the  Health  Care  and  Education
Reconciliation  Act  of  2010,  or  collectively,  the  ACA,  was  signed  into  law,  which  substantially  changed  the  way  healthcare  is  financed  by  both
governmental  and  private  insurers  in  the  United  States.  By  way  of  example,  the  ACA  increased  the  minimum  level  of  Medicaid  rebates  payable  by
manufacturers  of  brand  name  drugs  from  15.1%  to  23.1%;  it  required  collection  of  rebates  for  drugs  paid  by  Medicaid  managed  care  organizations;  it
imposed  a  non-deductible  annual  fee  on  pharmaceutical  manufacturers  or  importers  who  sell  certain  “branded  prescription  drugs”  to  specified  federal
government  programs;  it  implemented  a  new  methodology  under  which  rebates  owed  by  manufacturers  under  the  Medicaid  Drug  Rebate  Program  are
calculated for drugs that are inhaled, infused, instilled, implanted, or injected; it expanded the eligibility criteria for Medicaid programs; it created a new
Patient-Centered Outcomes Research Institute to oversee, identify priorities in, and conduct comparative clinical effectiveness research, along with funding
for such research; and it established a Center for Medicare and Medicaid Innovation (“CMMI”) at CMS to test innovative payment and service delivery
models to lower Medicare and Medicaid spending, potentially including prescription drug spending.

Since its enactment, there have been executive, judicial and Congressional challenges to certain aspects of the ACA, and we expect there will be additional
challenges  and  amendments  to  the  ACA  in  the  future.  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  has  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.  For  example,  in  2017,
Congress enacted the Tax Cuts and Jobs Act, which eliminated 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, a process that is commonly referred to as the “individual mandate.” In addition, the
Further  Consolidated  Appropriations  Act,  2020  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, it also eliminated the health insurance tax. On December 14,
2018,  the  U.S.  District  Court  for  the  Northern  District  of Texas  ruled  that  the  individual  mandate  is  a  critical  and  inseverable  feature  of  the ACA,  and
therefore, because it was repealed as part of the Tax Act, the remaining provisions of the ACA are invalid as well. On December 18, 2019, the U.S. Court
of Appeals  for  the  Fifth  Circuit  ruled  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.  On  June  17,  2021,  the  U.S.  Supreme  Court  reversed  the  ruling  of  the  Fifth  Circuit,
holding that the challengers lacked standing to sue and otherwise abstaining from reaching the merits of the case. Notwithstanding the resolution of this
legal challenge, there may be other efforts to challenge, repeal, or replace the ACA. We are continuing to monitor any changes to the ACA that, in turn,
may potentially impact our business in the future.

President Joseph R. Biden, Jr. signed an Executive Order on Strengthening Medicaid and the Affordable Care Act, stating his administration’s intentions to
reverse the actions of his predecessor and strengthen the ACA. As part of this Executive Order, the Department of Health and Human Services, United
States Treasury, and the Department of Labor are directed to review all existing regulations, orders, guidance documents, policies, and agency actions and
to consider if they are consistent with ensuring coverage under the ACA making high-quality healthcare affordable and accessible to Americans. We are
unable to predict the likelihood of changes to the ACA or other healthcare laws which may negatively impact our profitability.

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President Biden intends, as his predecessor did, to take action against drug prices which are considered “high.” Such measures could be addressed in a
legislative package later in 2021 or with the reauthorization of the Prescription Drug User Fee Act (“PDUFA”) in 2022. Drug pricing continues to be a
subject  of  debate  at  the  executive  and  legislative  levels  of  U.S.  government  and  we  expect  to  see  legislation  focusing  on  this  in  the  coming  year. The
American Rescue Plan Act of 2021 signed into law by President Biden on March 14, 2021 includes a provision that will eliminate the statutory cap on
rebates  drug  manufacturers  pay  to  Medicaid  beginning  in  January  2024.  With  the  elimination  of  the  rebate  cap,  manufacturers  may  be  required  to
compensate states in an amount greater than what the state Medicaid programs pay for the drug.

Other legislative changes have been proposed and adopted since the ACA was enacted. These changes include aggregate reductions to Medicare payments
to providers of up to 2% per fiscal year, effective April 1, 2013, which, due to subsequent legislative amendments, will stay in effect through 2030 with the
exception of a temporary suspension implemented under various COVID-19 relief legislation from May 1, 2020 through December 31, 2021. Moreover,
there  has  recently  been  heightened  governmental  scrutiny  over  the  manner  in  which  manufacturers  set  prices  for  their  marketed  products,  which  has
resulted  in  several  Congressional  inquiries  and  proposed  and  enacted  legislation  designed,  among  other  things,  to  bring  more  transparency  to  product
pricing,  to  review  the  relationship  between  pricing  and  manufacturer  patient  assistance  programs,  and  to  reform  government  program  reimbursement
methodologies  for  pharmaceutical  products. The  Prescription  Drug  Pricing  Reduction Act,  or  PDPRA,  which  was  introduced  in  Congress  in  2019,  and
again in 2020, proposed to, among other things, penalize pharmaceutical manufacturers for raising prices on drugs covered by Medicare Parts B and D
faster  than  the  rate  of  inflation,  cap  out-of-pocket  expenses  for  Medicare  Part  D  beneficiaries,  and  several  changes  to  how  drugs  are  reimbursed  in
Medicare  Part  B. A  similar  drug  pricing  bill,  the  Elijah  E.  Cummings  Lower  Drug  Costs  Now Act,  proposes  to  enable  direct  price  negotiations  by  the
federal government for certain drugs (with the maximum price paid by Medicare capped based on an international index), requires manufacturers to offer
these negotiated prices to other payers, and restricts manufacturers from raising prices on drugs covered by Medicare Parts B and D. This Act passed in the
House of Representatives when it was introduced in 2019, and it has been introduced again in the 2021 term. We cannot predict whether any proposed
legislation will become law and the effect of these possible changes on our business cannot be predicted at this time.

Our current and future relationships with customers and third-party payors in the United States and elsewhere may be subject, directly or indirectly, to
applicable  anti-kickback,  fraud  and  abuse,  false  claims,  transparency,  health  information  privacy  and  security  and  other  healthcare  laws  and
regulations,  which  could  expose  us  to  criminal  sanctions,  civil  penalties,  contractual  damages,  reputational  harm,  administrative  burdens  and
diminished profits and future earnings.

Healthcare providers, physicians and third-party payors in the United States and elsewhere will play a primary role in the recommendation and prescription
of  any  product  candidates  for  which  we  obtain  marketing  approval.  Our  future  arrangements  with  third-party  payors  and  customers  may  expose  us  to
broadly  applicable  fraud  and  abuse  and  other  healthcare  laws  and  regulations,  including,  without  limitation,  the  federal Anti-Kickback  Statute  and  the
federal False Claims Act, which may constrain the business or financial arrangements and relationships through which we sell, market and distribute any
product candidates for which we obtain marketing approval. In addition, we may be subject to transparency laws and patient privacy regulation by U.S.
federal  and  state  governments  and  by  governments  in  foreign  jurisdictions  in  which  we  conduct  our  business. The  applicable  federal,  state  and  foreign
healthcare laws and regulations that may affect our ability to operate include:

● the federal Anti-Kickback Statute, which prohibits, among other things, persons from knowingly and willfully soliciting, offering, receiving or
providing remuneration, directly or indirectly, in cash or in kind, to induce or reward, or in return for, either the referral of an individual for, or the
purchase, order or recommendation of, any good or service, for which payment may be made under federal and state healthcare programs, such as
Medicare and Medicaid;

● federal civil and criminal false claims laws and civil monetary penalty laws, including the federal False Claims Act, which impose criminal and
civil  penalties,  including  civil  whistleblower  or  qui  tam  actions,  against  individuals  or  entities  for  knowingly  presenting,  or  causing  to  be
presented, to the federal government, including the Medicare and Medicaid programs, claims for payment that are false or fraudulent or making a
false statement to 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  imposes  criminal  and  civil  liability  for  executing  a  scheme  to  defraud  any  healthcare  benefit
program or making false statements relating to healthcare matters;

● HIPAA,  as  amended  by  the  Health  Information  Technology  for  Economic  and  Clinical  Health Act  of  2009  (“HITECH”),  and  their  respective
implementing regulations, which impose obligations on covered healthcare providers, health plans, and healthcare clearinghouses, as well as their
business associates that create, receive, maintain or transmit individually identifiable

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health  information  for  or  on  behalf  of  a  covered  entity,  with  respect  to  safeguarding  the  privacy,  security  and  transmission  of  individually
identifiable health information;

● the federal Open Payments program, which requires manufacturers of certain approved drugs, devices, biologics and medical supplies for which
payment is available under Medicare, Medicaid or the Children’s Health Insurance Program, with specific exceptions, to report annually to the
Centers for Medicare & Medicaid Services (“CMS”), information related to “payments or other transfers of value” made to physicians, which is
defined  to  include  doctors,  dentists,  optometrists,  podiatrists  and  chiropractors,  and  teaching  hospitals  and  applicable  manufacturers  and
applicable  group  purchasing  organizations  to  report  annually  to  CMS  ownership  and  investment  interests  held  by  the  physicians  and  their
immediate  family  members.  Data  collection  began  on  August  1,  2013  with  requirements  for  manufacturers  to  submit  reports  to  CMS  by
March  31,  2014  and  90  days  after  the  end  each  subsequent  calendar  year.  Disclosure  of  such  information  was  made  by  CMS  on  a  publicly
available website beginning in September 2014; and

● analogous  state  and  foreign  laws  and  regulations,  such  as  state  anti-kickback  and  false  claims  laws,  which  may  apply  to  sales  or  marketing
arrangements and claims involving healthcare items or services reimbursed by non-governmental third- party payors, including private insurers;
state and foreign 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  or  otherwise  restrict  payments  that  may  be  made  to  healthcare
providers;  state  and  foreign  laws  that  require  drug  manufacturers  to  report  information  related  to  payments  and  other  transfers  of  value  to
physicians  and  other  healthcare  providers  or  marketing  expenditures;  and  state  and  foreign  laws  governing  the  privacy  and  security  of  health
information  in  certain  circumstances,  many  of  which  differ  from  each  other  in  significant  ways  and  often  are  not  preempted  by  HIPAA,  thus
complicating compliance efforts.

Efforts to ensure that our business arrangements with third parties will comply with applicable healthcare laws and regulations may involve substantial
costs. It is possible that governmental authorities will conclude that our business practices may not comply with current or future statutes, regulations 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 laws or
any other governmental regulations that may apply to us, we may be subject to significant civil, criminal and administrative penalties, including, without
limitation,  damages,  fines,  imprisonment,  exclusion  from  participation  in  government  healthcare  programs,  such  as  Medicare  and  Medicaid,  and  the
curtailment  or  restructuring  of  our  operations,  which  could  have  a  material  adverse  effect  on  our  business.  If  any  of  the  physicians  or  other  healthcare
providers or entities with whom we expect to do business, including our collaborators, is found not to be in compliance with applicable laws, it may be
subject  to  criminal,  civil  or  administrative  sanctions,  including  exclusions  from  participation  in  government  healthcare  programs,  which  could  also
materially affect our business.

Risks Related to Intellectual Property and Potential Disputes with Licensors Thereof

If we are unable to obtain and maintain sufficient patent protection for our technology and products, our competitors could develop and commercialize
technology and products similar or identical to ours, and our ability to successfully commercialize our technology and products may be impaired.

Our  commercial  success  will  depend  in  part  on  obtaining  and  maintaining  patent  protection  and  trade  secret  protection  in  the  United  States  and  other
countries with respect to our product candidates or any future product candidate that we may license or acquire and the methods we use to manufacture
them, as well as successfully defending these patents and trade secrets against third-party challenges. We seek to protect our proprietary position by filing
patent  applications  in  the  United  States  and  abroad  related  to  our  novel  technologies  and  product  candidates,  and  by  maintenance  of  our  trade  secrets
through proper procedures. We will only be able to protect our technologies from unauthorized use by third parties to the extent that valid and enforceable
patents or trade secrets cover them in the market they are being used or developed.

The  patent  prosecution  process  is  expensive  and  time-consuming,  and  we  may  not  be  able  to  file  and  prosecute  all  necessary  or  desirable  patent
applications  at  a  reasonable  cost  or  in  a  timely  manner.  It  is  also  possible  that  we  will  fail  to  identify  any  patentable  aspects  of  our  research  and
development  output  and  methodology,  and,  even  if  we  do,  an  opportunity  to  obtain  patent  protection  may  have  passed.  Given  the  uncertain  and  time-
consuming process of filing patent applications and prosecuting them, it is possible that our product(s) or process(es) originally covered by the scope of our
patent applications may change or be modified throughout the patent prosecution process, leaving our product(s) or process(es) without patent protection.
If  our  licensors  or  we  fail  to  obtain  or  maintain  patent  protection  or  trade  secret  protection  for  one  or  more  product  candidates  or  any  future  product
candidate we may license or acquire, third parties may be able to leverage our proprietary information and products without risk of infringement, which
could impair our ability to compete

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in the market and adversely affect our ability to generate revenues and achieve profitability. Moreover, should we enter into other collaborations we may be
required to consult with or cede control to collaborators regarding the prosecution, maintenance, defense and enforcement of patents licensed or developed
under such collaborations. Therefore, these patents and applications may not be prosecuted, defended, and enforced in a manner consistent with the best
interests of our business.

The patent position of biotechnology and pharmaceutical companies generally is highly uncertain, involves complex legal and factual questions and has in
recent  years  been  the  subject  of  much  litigation.  In  addition,  no  consistent  policy  regarding  the  breadth  of  claims  allowed  in  pharmaceutical  or
biotechnology patents has emerged to date in the U.S. The patent situation outside the U.S. is even more uncertain. The patent laws of foreign countries
may  not  protect  our  patent  rights  to  the  same  extent  as  the  laws  of  the  United  States,  and  we  may  fail  to  seek  or  obtain  patent  protection  in  all  major
markets. For example, European patent law restricts the patentability of methods of treatment of the human body more than United States patent law does.
Publications  of  discoveries  in  the  scientific  literature  often  lag  behind  the  actual  discoveries,  and  patent  applications  in  the  United  States  and  other
jurisdictions are typically not published until 18 months after a first filing, or in some cases not at all. Therefore, we cannot know with certainty whether
we  or  our  licensors  were  the  first  to  make  the  inventions  claimed  in  patents  or  pending  patent  applications  that  we  own  or  licensed,  or  that  we  or  our
licensors were the first to file for patent protection of such inventions. In the event that a third party has also filed a U.S. patent application relating to our
product candidates or a similar invention, depending upon the priority dates claimed by the competing parties, we may have to participate in interference
proceedings declared by the USPTO to determine priority of invention in the U.S. The costs of these proceedings could be substantial and it is possible that
our  efforts  to  establish  priority  of  invention  would  be  unsuccessful,  resulting  in  a  material  adverse  effect  on  our  U.S.  patent  position. As  a  result,  the
issuance, scope, validity, enforceability and commercial value of our or any of our respective licensors’ patent rights are highly uncertain. Our pending and
future patent applications may not result in patents being issued which protect our technology or products, in whole or in part, or which effectively prevent
others from commercializing competitive technologies and products. Changes in either the patent laws or interpretation of the patent laws in the United
States and other countries may diminish the value of our patents or narrow the scope of our patent protection. For example, the federal courts of the United
States have taken an increasingly dim view of the patent eligibility of certain subject matter, such as naturally occurring nucleic acid sequences, amino acid
sequences and certain methods of utilizing the same, which include their detection in a biological sample and diagnostic conclusions arising from their
detection.  Such  subject  matter,  which  had  long  been  a  staple  of  the  biotechnology  and  biopharmaceutical  industry  to  protect  their  discoveries,  is  now
considered, with few exceptions, ineligible in the first instance for protection under the patent laws of the United States. Accordingly, we cannot predict the
breadth of claims that may be allowed or enforced in our patents or in those licensed from a third-party.

In  addition,  U.S.  patent  laws  may  change,  which  could  prevent  or  limit  us  from  filing  patent  applications  or  patent  claims  to  protect  products  and/or
technologies or limit the exclusivity periods that are available to patent holders, as well as affect the validity, enforceability, or scope of issued patents.

Moreover, the patents or patent applications owned or filed by us, or by our licensors or other collaborators, may be subject to a third-party pre-issuance
submission  of  prior  art  to  the  USPTO,  or  to  opposition,  derivation,  reexamination,  inter  partes  review,  post-grant  review  or  interference  proceedings
challenging our patent rights or the patent rights of our licensors or collaborators. The costs of these proceedings could be substantial and it is possible that
our  efforts  to  establish  priority  of  invention  would  be  unsuccessful,  resulting  in  a  material  adverse  effect  on  our  U.S.  patent  position.  An  adverse
determination in any such submission, patent office trial, proceeding or litigation could reduce the scope of, render unenforceable, or invalidate, our patent
rights, allow third parties to commercialize our technology or products and compete directly with us, without payment to us, or result in our inability to
manufacture or commercialize products without infringing third-party patent rights. In addition, if the breadth or strength of protection provided by our
patents and patent applications is threatened, it could dissuade companies from collaborating with us to license, develop or commercialize current or future
product candidates.

Even if our patent applications issue as patents, they may not issue in a form that will provide us with any meaningful protection, prevent competitors from
competing with us or otherwise provide us with any competitive advantage. Our competitors may be able to circumvent our owned or licensed patents by
developing similar or alternative technologies or products in a non-infringing manner.

The issuance of a patent does not foreclose challenges to its inventorship, scope, validity or enforceability. Therefore, our owned and licensed patents may
be challenged in the courts or patent offices in the United States and abroad. Such challenges may result in loss of exclusivity or in patent claims being
narrowed,  invalidated  or  held  unenforceable,  in  whole  or  in  part,  which  could  limit  our  ability  to  stop  others  from  using  or  commercializing  similar  or
identical technology and products, or limit the duration of the patent protection of our technology and products. Given the amount of time required for the
development, testing and regulatory review of new product

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candidates, patents protecting such product candidates might expire before or shortly after such product candidates are commercialized. As a result, our
owned and licensed patent portfolio may not provide us with sufficient rights to exclude others from commercializing products similar or identical to ours.

We may need to license certain intellectual property from third parties, and such licenses may not be available or may not be available on commercially
reasonable terms.

A  third  party  may  hold  intellectual  property,  including  patent  rights  that  are  important  or  necessary  to  the  development  and  commercialization  of  our
products. It may be necessary for us to use the patented or proprietary technology of third parties, whom may or may not be interested in granting such a
license, to commercialize our products, in which case we would be required to obtain a license from these third parties on commercially reasonable terms,
or our business could be harmed, possibly materially.

We  depend  on  our  licensors  to  maintain  and  enforce  the  intellectual  property  covering  certain  of  our  product  candidates.  We  have  limited,  if  any,
control over the resources that our licensors can or will devote to securing, maintaining, and enforcing patents protecting our product candidates.

We  depend  on  our  licensors  to  protect  the  proprietary  rights  covering  our  antibody  and  certain  of  our  small  molecule  product  candidates  and  we  have
limited, if any, control over the amount or timing of resources that they devote on our behalf, or the priority they place on, maintaining patent rights and
prosecuting  patent  applications  to  our  advantage.  Moreover,  we  have  limited,  if  any,  control  over  the  strategies  and  arguments  employed  in  the
maintenance of patent rights and the prosecution of patent applications to our advantage.

Our licensors, depending on the patent or application, are responsible for maintaining issued patents and prosecuting patent applications for our antibody
and certain of our small molecule product candidates. We cannot be sure that they will perform as required. Should they decide they no longer want to
maintain any of the patents licensed to us, they are required to afford us the opportunity to do so at our expense. If our licensors do not perform, and if we
do not assume the maintenance of the licensed patents in sufficient time to make required payments or filings with the appropriate governmental agencies,
we risk losing the benefit of all or some of those patent rights. Moreover, and possibly unbeknownst to us, our licensors may experience serious difficulties
related  to  their  overall  business  or  financial  stability,  and  they  may  be  unwilling  or  unable  to  continue  to  expend  the  financial  resources  required  to
maintain and prosecute these patents and patent applications. While we intend to take actions reasonably necessary to enforce our patent rights, we depend,
in part, on our licensors to protect a substantial portion of our proprietary rights and to inform us of the status of those protections and efforts thereto.

Our licensors may also be notified of alleged infringement and be sued for infringement of third-party patents or other proprietary rights. We may have
limited,  if  any,  control  or  involvement  over  the  defense  of  these  claims,  and  our  licensors  could  be  subject  to  injunctions  and  temporary  or  permanent
exclusionary  orders  in  the  U.S.  or  other  countries.  Our  licensors  are  not  obligated  to  defend  or  assist  in  our  defense  against  third-party  claims  of
infringement. We have limited, if any, control over the amount or timing of resources, if any, that our licensors devote on our behalf or the priority they
place on defense of such third-party claims of infringement.

Because of the uncertainty inherent in any patent or other litigation involving proprietary rights, we or our licensors may not be successful in defending
claims of intellectual property infringement alleged by third parties, which could have a material adverse effect on our results of operations. Regardless of
the outcome of any litigation, defending the litigation may be expensive, time-consuming and distracting to management.

Protecting our proprietary rights is difficult and costly, and we may be unable to ensure their protection.

The degree of future protection for our proprietary rights is uncertain, because legal means afford only limited protection and may not adequately protect
our rights or permit us to gain or keep our competitive advantage, in addition to being costly and time consuming to undertake. For example:

● our licensors might not have been the first to make the inventions covered by each of our pending patent applications and issued patents;
● our licensors might not have been the first to file patent applications for these inventions;
● others  may  independently  develop  similar  or  alternative  technologies  or  duplicate  our  product  candidates  or  any  future  product  candidate

technologies;

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● it is possible that none of the pending patent applications licensed to us will result in issued patents;
● the scope of our issued patents may not extend to competitive products developed or produced by others;
● the  issued  patents  covering  our  product  candidates  or  any  future  product  candidate  may  not  provide  a  basis  for  market  exclusivity  for  active

products, may not provide us with any competitive advantages, or may be challenged by third parties;

● we may not develop additional proprietary technologies that are patentable; or
● intellectual property rights of others may have an adverse effect on our business.

We may become involved in lawsuits to protect or enforce our patents or other intellectual property, which could be expensive, time consuming and
unsuccessful, and an unfavorable outcome in any litigation would harm our business.

Competitors may infringe our issued patents or other intellectual property. To counter infringement or unauthorized use, we may be required to file one or
more actions for patent infringement, which can be expensive and time consuming. Any claims we assert against accused infringers could provoke these
parties to assert counterclaims against us alleging invalidity of our patents or that we infringe their patents; or provoke those parties to petition the USPTO
to institute inter partes review against the asserted patents, which may lead to a finding that all or some of the claims of the asserted patents are invalid. In
addition, in a patent infringement proceeding, a court may decide that a patent of ours is invalid or unenforceable, in whole or in part, construe the patent’s
claims narrowly or 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  proceeding  could  put  one  or  more  of  our  pending  patents  at  risk  of  being  invalidated,  rendered  unenforceable,  or
interpreted narrowly. 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. Furthermore, adverse results on U.S. patents may affect
related patents in our global portfolio.

Our ability to develop, manufacture, market and sell one or more of our product candidates or any future product candidate that we may license or acquire
depends  upon  our  ability  to  avoid  infringing  the  proprietary  rights  of  third  parties.  Numerous  U.S.  and  foreign  issued  patents  and  pending  patent
applications, which are owned by third parties, exist in the general fields of fully human immuno-oncology targeted antibodies and targeted anti-cancer
agents  and  cover  the  use  of  numerous  compounds  and  formulations  in  our  targeted  markets.  Because  of  the  uncertainty  inherent  in  any  patent  or  other
litigation involving proprietary rights, we and our licensors may not be successful in defending intellectual property claims asserted by third parties, which
could have a material adverse effect on our results of operations. Regardless of the outcome of any litigation, defending the litigation may be expensive,
time-consuming  and  distracting  to  management.  In  addition,  because  patent  applications  can  take  many  years  to  issue,  there  may  be  currently  pending
applications that are unknown to us, which may later result in issued patents that one or more of our product candidates may infringe. There could also be
existing patents of which we are not aware that one or more of our product candidates may infringe, even if only inadvertently.

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

There  is  a  substantial  amount  of  litigation  involving  patent  and  other  intellectual  property  rights  in  the  biotechnology  and  biopharmaceutical  industries
generally. If a third-party claims that we infringe their patents or misappropriated their technology, we could face a number of issues, including:

● infringement and other intellectual property claims which, with or without merit, can be expensive and time consuming to litigate and can divert

management’s attention from our core business;

● substantial damages for past infringement which we may have to pay if a court decides that our product infringes a competitor’s patent;
● a court prohibiting us from selling or licensing our product unless the patent holder licenses the patent to us, which it would not be required to do;

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● if a license is available from a patent holder, we may have to pay substantial royalties or grant cross licenses to our patents; and
● redesigning  our  processes  so  they  do  not  infringe,  which  may  not  be  possible  or  could  require  substantial  funds,  time,  and  may  result  in  an

inferior or less-desirable process or product.

If we fail to comply with our obligations under our intellectual property licenses and third-party funding arrangements, we could lose rights that are
important to our business.

We have in-licensed the rights to all of our product candidates from third parties. Any disputes between us and any of our licensors regarding our rights
under our license agreements may impact our ability to develop and commercialize these product candidates. Any uncured, material breach under any of
our license agreements could result in our loss of exclusive rights to one or more of our product candidates and may lead to a complete termination of our
related product development efforts.

We  are  currently  a  party  to  license  agreements  with  Dana-Farber, Adimab,  NeuPharma  and  Jubilant.  In  the  future,  we  may  become  party  to  additional
licenses that are important for product development and commercialization. If we fail to comply with our obligations under current or future license and
funding agreements, our counterparties may have the right to terminate these agreements, in which event we might not be able to develop, manufacture or
market any product or utilize any technology that is covered by these agreements or may face other penalties under the agreements. Such an occurrence
could  materially  and  adversely  affect  the  value  of  a  product  candidate  being  developed  under  any  such  agreement  or  could  restrict  our  drug  discovery
activities. Termination of these agreements or reduction or elimination of our rights under these agreements may result in our having to negotiate new or
reinstated  agreements  with  less  favorable  terms,  or  cause  us  to  lose  our  rights  under  these  agreements,  including  our  rights  to  important  intellectual
property or technology.

We may be subject to claims that our employees have wrongfully used or disclosed alleged trade secrets of their former employers.

As  is  common  in  the  biotechnology  and  pharmaceutical  industry,  we  employ  individuals  who  were  previously  employed  at  other  biotechnology  or
pharmaceutical companies, including our competitors or potential competitors. Although no claims against us are currently pending, we may be subject to
claims  that  we  or  these  employees  have  inadvertently  or  otherwise  used  or  disclosed  trade  secrets  or  other  proprietary  information  of  their  former
employers.  Even  if  frivolous  or  unsubstantiated  in  nature,  litigation  may  be  necessary  to  defend  against  these  claims.  Even  if  we  are  successful  in
defending against these claims, litigation could result in substantial costs and be a distraction to management and the implicated employee(s).

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

In  addition  to  seeking  patent  protection  for  our  product  candidates  or  any  future  product  candidate,  we  also  rely  on  trade  secrets,  including  unpatented
know-how, technology and other proprietary information, to maintain our competitive position, particularly where we do not believe patent protection is
appropriate  or  obtainable.  However,  trade  secrets  are  difficult  to  protect.  We  limit  disclosure  of  such  trade  secrets  where  possible  but  we  also  seek  to
protect these trade secrets, in part, by entering into non-disclosure and confidentiality agreements with parties who do have access to them, such as our
employees, our licensors, corporate collaborators, outside scientific collaborators, contract manufacturers, consultants, advisors and other third parties. We
also  enter  into  confidentiality  and  invention  or  patent  assignment  agreements  with  our  employees  and  consultants.  Despite  these  efforts,  any  of  these
parties may breach the agreements and may unintentionally or willfully disclose our proprietary information, including our trade secrets, and we may not
be  able  to  obtain  adequate  remedies  for  such  breaches.  Enforcing  a  claim  that  a  party  illegally  disclosed  or  misappropriated  a  trade  secret  is  difficult,
expensive  and  time-consuming,  and  the  outcome  is  unpredictable.  In  addition,  some  courts  inside  and  outside  the  United  States  are  less  willing  or
unwilling to protect trade secrets. Moreover, if any of our trade secrets were to be lawfully obtained or independently developed by a competitor, we would
have no right to prevent them, or those to whom they communicate it, from using that technology or information to compete with us. If any of our trade
secrets were to be disclosed to or independently developed by a competitor, our competitive position would be harmed.

Risks Relating to Our Platform and Data

Our business and operations would suffer in the event of computer system failures, cyber-attacks, or deficiencies in our or third parties’ cybersecurity.

We are increasingly dependent upon information technology systems, infrastructure, and data to operate our business. In the ordinary course of business,
we collect, store, and transmit confidential information, including, but not limited to, information related to our

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intellectual  property  and  proprietary  business  information,  personal  information,  and  other  confidential  information.  It  is  critical  that  we  maintain  such
confidential information in a manner that preserves its confidentiality and integrity. Furthermore, we have outsourced elements of our operations to third
party vendors, who each have access to our confidential information, which increases our disclosure risk.

Although  we  have  implemented  internal  security  and  business  continuity  measures  and  have  developed  an  information  technology  infrastructure,  our
internal  computer  systems,  as  well  as  those  of  current  and  future  third  parties  on  which  we  rely,  are  vulnerable  to  damage  from  computer  viruses  and
unauthorized access and may fail. Our information technology and other internal infrastructure systems, including corporate firewalls, servers, data center
facilities,  lab  equipment,  and  internet  connection,  face  the  risk  of  breakdown  or  other  damage  or  interruption  from  service  interruptions,  system
malfunctions, natural disasters, terrorism, war, and telecommunication and electrical failures, as well as security breaches from inadvertent or intentional
actions by our employees, contractors, consultants, business partners, and/or other third parties, or from cyber-attacks by malicious third parties (including
the deployment of harmful malware, ransomware, denial-of-service attacks, social engineering and other means to affect service reliability and threaten the
confidentiality,  integrity  and  availability  of  information),  each  of  which  could  compromise  our  system  infrastructure  or  lead  to  the  loss,  destruction,
alteration, disclosure, or dissemination of, or damage or unauthorized access to, our data or data that is processed or maintained on our behalf, or other
assets.

In addition, the loss or corruption of, or other damage to, clinical trial data from completed or future clinical trials could result in delays in our regulatory
approval efforts and could significantly increase our costs to recover or reproduce the data. Likewise, we will rely on third parties for the manufacture of
our current or future drug candidates and to conduct clinical trials, and similar events relating to their systems and operations could also have a material
adverse effect on our business and lead to regulatory agency actions. The risk of a security breach or disruption, particularly through cyber-attacks or cyber
intrusion, including by computer hackers, foreign governments, and cyber terrorists, has generally increased as the number, intensity, and sophistication of
attempted attacks and intrusions from around the world have increased.

Sophisticated  cyber  attackers  (including  foreign  adversaries  engaged  in  industrial  espionage)  are  skilled  at  adapting  to  existing  security  technology  and
developing new methods of gaining access to organizations’ sensitive business data, which could result in the loss of proprietary information, including
trade secrets. We may be unable to anticipate all types of security threats and to implement preventive measures effective against all such security threats.
The  techniques  used  by  cyber  criminals  change  frequently,  may  not  be  recognized  until  launched,  and  can  originate  from  a  wide  variety  of  sources,
including outside groups such as external service providers, organized crime affiliates, terrorist organizations, or hostile foreign governments or agencies.

Any  security  breach  or  other  event  leading  to  the  loss  or  damage  to,  or  unauthorized  access,  use,  alteration,  disclosure,  or  dissemination  of,  personal
information,  including  personal  information  regarding  clinical  trial  subjects,  contractors,  directors,  or  employees,  our  intellectual  property,  proprietary
business  information,  or  other  confidential  or  proprietary  information,  could  directly  harm  our  reputation,  enable  competitors  to  compete  with  us  more
effectively, compel us to comply with federal and/or state breach notification laws and foreign law equivalents, subject us to mandatory corrective action,
or otherwise subject us to liability under laws and regulations that protect the privacy and security of personal information.

Each  of  the  foregoing  could  result  in  significant  legal  and  financial  exposure  and  reputational  damage  that  could  adversely  affect  our  business.
Notifications  and  follow-up  actions  related  to  a  security  incident  could  impact  our  reputation  or  cause  us  to  incur  substantial  costs,  including  legal  and
remediation costs, in connection with these measures and otherwise in connection with any actual or suspected security breach. Our efforts to detect and
prevent  security  incidents  and  otherwise  implement  our  internal  security  and  business  continuity  measures,  including  those  connected  with  any  actual,
potential, or anticipated attack, may cause us to incur significant cost, including those connected with the engagement of additional personnel (including
third-party experts and consultants), employment protection technologies, and employee training.

The costs related to significant security breaches or disruptions could be material and our insurance policies may not be adequate to compensate us for the
potential losses arising from any such disruption in, or failure or security breach of, our systems or third-party systems where information important to our
business operations or commercial development is stored or processed. In addition, such insurance may not be available to us in the future on economically
reasonable terms, or at all. Further, our insurance may not cover all claims made against us and could have high deductibles in any event, and defending a
suit,  regardless  of  its  merit,  could  be  costly  and  divert  management  attention.  Furthermore,  if  the  information  technology  systems  of  our  third-party
vendors  and  other  contractors  and  consultants  become  subject  to  disruptions  or  security  breaches,  we  may  have  insufficient  recourse  against  such  third
parties and we may

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have to expend significant resources to mitigate the impact of such an event, and to develop and implement protections to prevent future events of this
nature from occurring.

The  occurrence  of  such  a  cybersecurity  breach  could  result  in  interruptions  in  our  operations,  material  disruption  of  our  development  programs  or  our
business operations, and may cause us financial, legal, business, or reputational harm.

Fortress controls a voting majority of our common stock.

Risks Relating to Our Control by Fortress Biotech Inc.

Pursuant to the terms of the Class A common stock held by Fortress, Fortress is entitled to cast, for each share of Class A common stock held by Fortress,
the number of votes that is equal to one and one-tenth (1.1) times a fraction, the numerator of which is the sum of the shares of outstanding common stock
and the denominator of which is the number of shares of outstanding Class A common stock. Accordingly, as long as Fortress owns any shares of Class A
common stock, they will be able to control or significantly influence all matters requiring approval by our stockholders, including the election of directors
and  the  approval  of  mergers  or  other  business  combination  transactions.  The  interests  of  Fortress  may  not  always  coincide  with  the  interests  of  other
stockholders,  and  Fortress  may  take  actions  that  advance  its  own  interests  and  are  contrary  to  the  desires  of  our  other  stockholders.  Moreover,  this
concentration  of  voting  power  may  delay,  prevent  or  deter  a  change  in  control  of  us  even  when  such  a  change  may  be  in  the  best  interests  of  all
stockholders, could deprive our stockholders of an opportunity to receive a premium for their common stock as part of a sale of Checkpoint or our assets,
and might affect the prevailing market price of our common stock.

Fortress  has  the  right  to  receive  a  significant  grant  of  shares  of  our  common  stock  annually  which  will  result  in  the  dilution  of  your  holdings  of
common stock upon each grant, which could reduce their value.

Under the terms of the Founders Agreement, which became effective as of March 17, 2015 and was amended and restated on July 11, 2016 (the “Founders
Agreement”), Fortress has the right to receive an annual grant of shares of our common stock equal to 2.5% of the fully diluted outstanding equity at the
time of issuance on January 1 of each year. This annual issuance of shares to Fortress will dilute your holdings in our common stock and, if the value of
Checkpoint has not grown over the prior year, would result in a reduction in the value of your shares.

We might have received better terms from unaffiliated third parties than the terms we receive in our agreements with Fortress.

The agreements we entered into with Fortress in connection with the separation include a Management Services Agreement and the Founders Agreement.
While  we  believe  the  terms  of  these  agreements  are  reasonable,  they  might  not  reflect  terms  that  would  have  resulted  from  arm’s-length  negotiations
between unaffiliated third parties. The terms of the agreements relate to, among other things, payment of a royalty on product sales and the provision of
employment  and  transition  services.  We  might  have  received  better  terms  from  third  parties  because,  among  other  things,  third  parties  might  have
competed with each other to win our business.

Risks Related to Conflicts of Interest

The Chairman of our Board of Directors is also the Executive Chairman, President and Chief Executive Officer of TGTX, with whom we previously
had a collaboration agreement and a sublicense agreement. As a result, during the terms of these agreements, certain conflicts of interest could have
arisen which would have required the attention of our officers and independent directors who are unaffiliated with TGTX.

In  connection  with  our  license  agreement  with  Dana-Farber  and  Adimab,  we  entered  into  a  collaboration  agreement  with  TGTX  to  develop  and
commercialize the anti-PD-L1 and anti-GITR antibody research programs, including cosibelimab in the field of hematological malignancies. In connection
with our license agreement with Jubilant, we entered into a sublicense agreement with TGTX to develop and commercialize the Jubilant family of patents
covering  compounds  that  inhibit  BET  proteins  such  as  BRD4,  including  CK-103,  in  the  field  of  hematological  malignancies.  Michael  S.  Weiss,  our
Chairman of the Board of Directors, is also the Executive Chairman, President and Chief Executive Officer of TGTX.

Effective September 30, 2023, the Company and TGTX agreed to mutually terminate these collaborations.

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The dual roles of our directors who also serve in similar roles with Fortress could create a conflict of interest and will require careful monitoring by
our independent directors.

We share some directors with Fortress which could create conflicts of interest between the two companies in the future. While we believe that the Founders
Agreement and the Management Services Agreement were negotiated by independent parties on both sides on arm’s length terms, and the fiduciary duties
of both parties were thereby satisfied, in the future situations may arise under the operation of both agreements that may create a conflict of interest. We
will  have  to  be  diligent  to  ensure  that  any  such  situation  is  resolved  by  independent  parties.  In  particular,  under  the  Management  Services Agreement,
Fortress  and  its  affiliates  are  free  to  pursue  opportunities  which  could  potentially  be  of  interest  to  Checkpoint,  and  they  are  not  required  to  notify
Checkpoint prior to pursuing the opportunity. Any such conflict of interest or pursuit by Fortress of a corporate opportunity independent of Checkpoint
could expose us to claims by our investors and creditors and could harm our results of operations.

General Risks

Major public health issues, and specifically the pandemic caused by the spread of COVID-19, could have an adverse impact on our financial condition
and results of operations and other aspects of our business.

On March 11, 2020, the World Health Organization declared that the rapidly spreading COVID-19 outbreak had evolved into a pandemic.

The  COVID-19  pandemic  negatively  impacted  the  global  economy,  disrupted  global  supply  chains,  and  created  significant  volatility  and  disruption  of
financial  markets. Although  COVID-19  has  not  had  a  material  adverse  effect  on  our  business  to  date,  if  the  coronavirus  were  to  worsen,  our  business
operations could be delayed or interrupted. For instance, our clinical trials may be affected by the pandemic. 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 toward pandemic efforts, or other reasons related to the
pandemic. If the coronavirus continues to spread, or if new variants emerge, some participants and clinical investigators may not be able to comply with
clinical trial protocols.

We currently rely on third parties, such as contract laboratories, contract research organizations, medical institutions and clinical investigators to conduct
these studies and clinical trials. If these third parties themselves are adversely impacted by restrictions resulting from the coronavirus outbreak, we will
likely  experience  delays  and/or  realize  additional  costs. We  also  rely  on  third  parties  for  the  manufacture  of  our  product  candidates  for  preclinical  and
clinical testing. Disruptions to the global supply chain could impact our or our third-party manufacturers’ ability to obtain raw materials or other products
necessary  to  manufacture  and  distribute  our  product  candidates. As  a  result,  our  efforts  to  obtain  regulatory  approvals  for,  and  to  commercialize,  our
product candidates may be delayed or disrupted.

We may not be able to manage our business effectively if we are unable to attract and retain key personnel.

We  may  not  be  able  to  attract  and/or  retain  qualified  management  and  commercial,  scientific  and  clinical  personnel  in  the  future  due  to  the  intense
competition for qualified personnel among biotechnology, pharmaceutical and other businesses. If we are not able to attract and retain necessary personnel
to accomplish our business objectives, we may experience constraints that will significantly impede the achievement of our development objectives, our
ability to raise additional capital and our ability to implement our business strategy.

Our employees or third-party contractors may engage in misconduct or other improper activities, including noncompliance with regulatory standards
and requirements, which could have a material adverse effect on our business.

We are exposed to the risk of employee fraud or other misconduct. Misconduct by employees or third-party contractors could include intentional failures to
comply with FDA regulations, provide accurate information to the FDA, comply with manufacturing standards we have established, comply with federal
and  state  health-care  fraud  and  abuse  laws  and  regulations,  report  financial  information  or  data  accurately  or  disclose  unauthorized  activities  to  us.  In
particular, sales, marketing and business arrangements in the healthcare industry are subject to extensive laws and regulations intended to prevent fraud,
kickbacks,  bribery,  self-dealing  and  other  abusive  practices.  These  laws  and  regulations  may  restrict  or  prohibit  a  wide  range  of  pricing,  discounting,
marketing  and  promotion,  sales  commission,  customer  incentive  programs  and  other  business  arrangements.  Employee  or  third-party  contractors
misconduct  could  also  involve  the  improper  use  of  information  obtained  in  the  course  of  clinical  trials,  which  could  result  in  regulatory  sanctions  and
serious

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harm to our reputation, as well as civil and criminal liability. The precautions we take to detect and prevent this activity may not be effective in controlling
unknown or unmanaged risks or losses or in protecting us from governmental investigations or other actions or lawsuits stemming from a failure to be in
compliance with such laws or regulations. If any such actions are instituted against us, and we are not successful in defending ourselves or asserting our
rights, those actions could have a significant impact on our business and results of operations, including the imposition of significant fines and/or other
civil and/or criminal sanctions.

If we fail to comply with environmental, health and safety laws and regulations, we could become subject to fines or penalties or incur costs that could
harm our business.

We are subject to numerous environmental, health and safety laws and regulations, including those governing laboratory procedures and the handling, use,
storage,  treatment  and  disposal  of  hazardous  materials  and  wastes.  Our  operations  involve  the  use  of  hazardous  and  flammable  materials,  including
chemicals and biological materials. Our operations also produce hazardous waste products. We generally contract with third parties for the disposal of these
materials  and  wastes. We  cannot  eliminate  the  risk  of  contamination  or  injury  from  these  materials. Although  we  believe  that  the  safety  procedures  for
handling and disposing of these materials comply with the standards prescribed by these laws and regulations, we cannot eliminate the risk of accidental
contamination or injury from these materials. In the event of contamination or injury resulting from our use of hazardous materials, we could be held liable
for any resulting damages, and any liability could exceed our resources. We also could incur significant costs associated with civil or criminal fines and
penalties for failure to comply with such laws and regulations.

Although we maintain workers’ compensation insurance to cover us for costs and expenses we may incur due to injuries to our employees resulting from
the  use  of  hazardous  materials,  this  insurance  may  not  provide  adequate  coverage  against  potential  liabilities.  We  do  not  maintain  insurance  for
environmental liability or toxic tort claims that may be asserted against us in connection with our storage or disposal of biological, hazardous or radioactive
materials.

In addition, we may incur substantial costs in order to comply with current or future environmental, health and safety laws and regulations. These current
or future laws and regulations may impair our research, development or production efforts. Our failure to comply with these laws and regulations also may
result in substantial fines, penalties or other sanctions.

Our business and operations would suffer in the event of system failures.

Despite the implementation of security measures, our internal computer systems are vulnerable to damage from computer viruses, unauthorized access,
natural disasters, terrorism, war and telecommunication and electrical failures. Any system failure, accident or security breach that causes interruptions in
our operations could result in a material disruption of our drug development programs. For example, the loss of clinical trial data from completed clinical
trials for one or more of our product conducts could result in delays in our regulatory approval efforts and significantly increase our costs to recover or
reproduce the data. To the extent that any disruption or security breach results in a loss or damage to our data or applications, or inappropriate disclosure of
confidential or proprietary information, we may incur liability and the further development of one or more of our product candidates may be delayed.

The market price and trading volume of our common stock has been volatile. Our stock may continue to be subject to substantial price and volume
fluctuations due to a number of factors, many of which are beyond our control and may prevent our stockholders from reselling our common stock at a
profit.

The market prices for securities of biotechnology and pharmaceutical companies have historically been highly volatile, and the market has from time to
time experienced significant price and volume fluctuations that are unrelated to the operating performance of particular companies.

The  market  price  and  trading  volume  of  our  common  stock  has  been  highly  volatile  and  is  likely  to  continue  to  be  highly  volatile  and  may  fluctuate
substantially due to many factors, including:

● announcements relating to the clinical development of our product candidates;
● announcements concerning the progress of our efforts to obtain regulatory approval for and commercialize our product candidates or any future
product candidate, including any requests we receive from the FDA, or comparable regulatory authorities outside the United States, for additional
studies or data that result in delays or additional costs in obtaining regulatory approval or launching these product candidates, if approved;

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● the depth and liquidity of the market for our common stock;
● investor perceptions about us and our business;
● market conditions in the pharmaceutical and biotechnology sectors or the economy as a whole, which may be impacted by economic or other

crises or external factors, including the effects of the COVID-19 pandemic on the global economy;

● price and volume fluctuations in the overall stock market;
● the failure of one or more of our product candidates or any future product candidate, if approved, to achieve commercial success;
● announcements of the introduction of new products by us or our competitors;
● developments concerning product development results or intellectual property rights of others;
● litigation or public concern about the safety of our potential products;
● actual fluctuations in our quarterly operating results, and concerns by investors that such fluctuations may occur in the future;
● deviations in our operating results from the estimates of securities analysts or other analyst comments;
● additions or departures of key personnel;
● health  care  reform  legislation,  including  measures  directed  at  controlling  the  pricing  of  pharmaceutical  products,  and  third-party  coverage  and

reimbursement policies;

● developments concerning current or future strategic collaborations; and
● discussion of us or our stock price by the financial and scientific press and in online investor communities.

We may become involved in securities class action litigation that could divert management’s attention and harm our business.

The market price and trading volume of our common stock has been highly volatile and is likely to continue to be highly volatile. In addition, the stock
markets  have  from  time  to  time  experienced  significant  price  and  volume  fluctuations  that  have  affected  the  market  prices  for  the  common  stock  of
biotechnology and pharmaceutical companies. These broad market fluctuations may cause the market price of our stock to decline. 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 biotechnology and biopharmaceutical companies have experienced significant stock price volatility in recent years. We may become involved in
this  type  of  litigation  in  the  future.  Litigation  often  is  expensive  and  diverts  management’s  attention  and  resources,  which  could  adversely  affect  our
business.

Item 1B.     Unresolved Staff Comments

None.

Item 1C.     Cybersecurity

Cybersecurity Risk Management and Strategy

We  have  established  certain  processes  for  identifying,  evaluating,  and  managing  material  risks  from  cybersecurity  threats  as  a  part  of  our  overall
technology  management  strategy. These  processes  are  designed  and  reassessed  on  a  periodic  basis  to  help  protect  our  technology  assets  and  operations
from internal and external security threats. We also engage with third parties, including consultants, to enhance our security processes.

We have previously engaged and currently engage third parties to assess the effectiveness of our cybersecurity and technology management strategy and
continue  to  seek  to  implement  new,  and  improve  existing,  processes  regularly  to  adjust  for  changes  in  technology,  internal  or  external  threats,  business
strategy,  and  regulatory  requirements.  We,  and  our  third  parties,  have  deployed  managed  detection  and  response  services  to  monitor  our  technology
infrastructure and information systems for possible threats. Our technology management strategy also includes ongoing security training and education for
employees regarding threats, including their role and responsibility in detecting and responding to such threats.

We review the processes of our third-party vendors and consider their ability to adhere to relevant industry practices and maintain adequate technology risk
programs. In addition, we maintain cyber and cyber-related crime insurance coverage policies as part of our overall risk management strategy, however,
our policies may not be sufficient to cover against all potential future claims, if any.

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In  the  last  two  fiscal  years,  we  have  not  identified  cybersecurity  threats  that  have  materially  affected,  or  are  reasonably  likely  to  materially  affect,  our
business,  results  of  operations,  or  financial  condition. Although  we  proactively  attempt  to  prevent  all  threats,  we  are  unable  to  eliminate  all  risk  from
cybersecurity  threats  or  provide  assurance  that  we  have  not  experienced  an  undetected  cybersecurity  incident.  For  more  information  about  these  risks,
please see Item 1A. Risk Factors “Our business and operations would suffer in the event of computer system failures”.

Cybersecurity Governance

While  our  board  of  directors  is  responsible  for  oversight  and  risk  management  in  general,  our Audit  Committee  provides  oversight  of  our  technology
management strategy to ensure that cybersecurity threats and risks are identified, evaluated, and managed. The Audit Committee receives periodic updates
from  our  management  team  regarding  the  overall  state  of  our  technology  management  strategy  and  any  relevant  risks  from  cybersecurity  threats  and
cybersecurity incidents.

Our  management  team  is  responsible  for  assessing  and  managing  the  material  risks  from  cybersecurity  threats.  Our  management  team  members  have
expertise  in  information  systems,  compliance  and  corporate  governance,  which  we  believe  are  disciplines  that  are  effective  in  the  management  of  the
Company’s cybersecurity risk. Our management team is informed of and monitors the prevention, detection, and mitigation of cybersecurity threats and
incidents.

Item 2.     Properties

Our corporate and executive office is located at 95 Sawyer Road, Suite 110, Waltham, MA, 02453. We are not currently under a lease agreement at 95
Sawyer Road. We believe that our existing facilities are adequate to meet our current requirements. We do not own any real property.

Item 3.     Legal Proceedings

We are not involved in any litigation that we believe could have a material adverse effect on our financial position or results of operations. There is no
action, suit, proceeding, inquiry or investigation before or by any court, public board, government agency, self-regulatory organization or body pending or,
to the knowledge of our executive officers, threatened against or affecting our company or our officers or directors in their capacities as such.

Item 4.     Mine Safety Disclosures

Not applicable.

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Item 5.     Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

PART II

Market information

Our common stock is listed on the NASDAQ Capital Market and trades under the symbol “CKPT.”

Equity Compensation Plans

On March 21, 2017, November 9, 2017, November 27, 2020, December 9, 2022, and November 17, 2023, we filed registration statements on Form S-8
under  the  Securities Act  registering  the  common  stock  issued,  issuable  or  reserved  for  issuance  under  our Amended  and  Restated  2015  Incentive  Plan
(“2015 Plan”). The registration statements became effective immediately upon filing, and shares covered by the registration statements are eligible for sale
in the public markets, subject to grant of the underlying awards, vesting provisions and Rule 144 limitations applicable to our affiliates.

Holders

As of March 19, 2024, there were approximately 63 holders of record for our common stock and 1 holder of record for our Class A common stock. The
number  of  beneficial  holders  of  our  common  stock  does  not  reflect  shareholders  who  hold  shares  in  street  name  through  brokerage  accounts  or  other
nominees.

Dividends

We  have  never  paid  cash  dividends  on  any  of  our  capital  stock  and  currently  intend  to  retain  our  future  earnings,  if  any,  to  fund  the  development  and
growth of our business.

Securities Authorized for Issuance under Equity Compensation Plans

Subject to adjustment as provided in the 2015 Plan, the total aggregate number of shares of our common stock reserved and available for issuance pursuant
to awards granted under the 2015 Plan is 6,000,000. The following table provides information as of December 31, 2023, regarding the securities authorized
for issuance under our equity compensation plan, the 2015 Plan.

Number of
securities to be
issued upon
exercise of
outstanding
options

Weighted-average
exercise price of
outstanding
options

Number of
securities
remaining
available for
future issuance
under equity
compensation
plans (excluding
securities reflected
in column 1)

 127,000

$
 —  

 127,000

 8.88  
 —  

 3,510,830
 —
 3,510,830

Plan Category

Equity compensation plans approved by security holders
Equity compensation plans not approved by security holders
Total

Item 6.     RESERVED

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Item 7.     Management’s Discussion and Analysis of the Results of Operations

Forward-Looking Statements

Statements  in  the  following  discussion  and  throughout  this  report  that  are  not  historical  in  nature  are  “forward-looking  statements.”  You  can  identify
forward-looking statements by the use of words such as “expect,” “anticipate,” “estimate,” “may,” “will,” “should,” “intend,” “believe,” and similar
expressions. Although we believe the expectations reflected in these forward-looking statements are reasonable, such statements are inherently subject to
risk and we can give no assurances that our expectations will prove to be correct. Actual results could differ from those described in this report because of
numerous factors, many of which are beyond our control. These factors include, without limitation, those described under Item 1A “Risk Factors.” We
undertake  no  obligation  to  update  these  forward-looking  statements  to  reflect  events  or  circumstances  after  the  date  of  this  report  or  to  reflect  actual
outcomes. Please see “Forward-Looking Statements” at the beginning of this Form 10-K.

The following discussion of our financial condition and results of operations should be read in conjunction with our financial statements and the related
notes  thereto  and  other  financial  information  appearing  elsewhere  in  this  Form  10-K.  We  undertake  no  obligation  to  update  any  forward-looking
statements in the discussion of our financial condition and results of operations to reflect events or circumstances after the date of this report or to reflect
actual outcomes.

Overview

We  are  a  clinical-stage  immunotherapy  and  targeted  oncology  company  focused  on  the  acquisition,  development  and  commercialization  of  novel
treatments for patients with solid tumor cancers. We are evaluating our lead antibody product candidate, cosibelimab, an anti-programmed death-ligand 1
(“PD-L1”)  antibody  licensed  from  the  Dana-Farber  Cancer  Institute,  in  an  ongoing  global,  open-label,  multicohort  Phase  1  clinical  trial  in  checkpoint
therapy-naïve patients with selected recurrent or metastatic cancers, including ongoing cohorts in locally advanced and metastatic cutaneous squamous cell
carcinoma (“CSCC”) intended to support one or more applications for marketing approval. Based on top-line and interim results in metastatic and locally
advanced  CSCC,  respectively,  we  submitted  a  Biologics  License  Application  (“BLA”)  to  the  U.S.  Food  and  Drug  Administration  (“FDA”)  for  these
indications in January 2023. On December 15, 2023, the FDA issued a complete response letter (“CRL”) for the cosibelimab BLA for the treatment of
patients with metastatic or locally advanced CSCC who are not candidates or curative surgery or radiation. The CRL only cites findings that arose during a
multi-sponsor inspection of our third-party contract manufacturing organization as approvability issues to address in a resubmission. Following resolution
of  the  inspection  issues  at  the  third-party  contract  manufacturing  organization  raised  in  the  CRL,  a  resubmission  of  the  BLA  is  planned  to  support  the
marketing  approval  of  cosibelimab.  In  addition,  we  are  evaluating  our  lead  small-molecule,  targeted  anti-cancer  agent,  olafertinib,  a  third-generation
epidermal growth factor receptor (“EGFR”) inhibitor, as a potential new treatment for patients with EGFR mutation-positive non-small cell lung cancer
(“NSCLC”).

In January 2022, we announced top-line results from a registration-enabling cohort of our multi-regional, Phase 1 clinical trial of cosibelimab in patients
with metastatic CSCC. The cohort met its primary endpoint, with cosibelimab demonstrating a confirmed objective response rate (“ORR”) of 47.4% (95%
CI: 36.0, 59.1) based on independent central review of 78 patients enrolled in the metastatic CSCC cohort using Response Evaluation Criteria in Solid
Tumors version 1.1 (“RECIST 1.1”).

In June 2022, we announced interim results from a registration-enabling cohort of our multi-regional, Phase 1 clinical trial of cosibelimab in patients with
locally advanced CSCC that are not candidates for curative surgery or radiation. Cosibelimab demonstrated a confirmed ORR of 54.8% (95% CI: 36.0,
72.7) based on independent central review of 31 patients enrolled in the cohort.

In  July  2023,  we  announced  longer-term  results  for  cosibelimab  from  its  pivotal  studies  in  locally  advanced  and  metastatic  CSCC.  These  results
demonstrated  a  deepening  of  response  over  time,  resulting  in  complete  response  rates  of  26%  and  13%  in  locally  advanced  and  metastatic  CSCC,
respectively.  Additionally,  the  confirmed  ORR  in  metastatic  CSCC  increased  to  50.0%  based  on  independent  central  review  using  RECIST  1.1.
Furthermore, responses continue to remain durable over time with the median duration of response not yet reached in either group. Updated safety data
across 247 patients enrolled and treated with cosibelimab in all cohorts of the ongoing study remain consistent with those previously reported.

We have also entered into various collaboration agreements with TGTX, a related party, to develop and commercialize certain assets in connection with our
licenses in the field of hematological malignancies, while we retain the right to develop and commercialize these

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assets in solid tumors. Effective September 30, 2023, the Company and TGTX agreed to mutually terminate these collaborations, with full rights reverting
back to us.

To date, we have not received approval for the sale of any product candidate in any market and, therefore, have not generated any product sales from any
product  candidates.  In  addition,  we  have  incurred  substantial  operating  losses  since  our  inception,  and  expect  to  continue  to  incur  significant  operating
losses for the foreseeable future and may never become profitable. As of December 31, 2023, we have an accumulated deficit of $314.3 million.

We are a majority-controlled subsidiary of Fortress.

Checkpoint Therapeutics, Inc. was incorporated in Delaware on November 10, 2014 and commenced principal operations in March 2015. Our executive
offices  are  located  at  95  Sawyer  Road,  Suite  110,  Waltham,  MA  02453.  Our  telephone  number  is  (781)  652-4500  and  our  email  address  is
ir@checkpointtx.com.

Critical Accounting Policies and Use of Estimates

Our  discussion  and  analysis  of  our  financial  condition  and  results  of  operations  are  based  on  our  financial  statements,  which  have  been  prepared  in
accordance with accounting principles generally accepted in the United States (“GAAP”). The preparation of these financial statements requires us to make
estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses and the disclosure of contingent assets and liabilities
in  our  financial  statements.  On  an  ongoing  basis,  we  evaluate  our  estimates  and  judgments,  including,  but  not  limited  to,  those  related  to  research  and
development  expenses,  accrued  research  and  development  expenses,  stock-based  compensation  and  common  stock  warrant  liabilities.  We  base  our
estimates on historical experience, known trends and events and various other factors that are believed to be reasonable under the circumstances, the results
of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual
results may differ from these estimates under different assumptions or conditions.

Our  significant  accounting  policies  are  described  in  the  notes  to  our  financial  statements  appearing  elsewhere  in  this  Form  10-K.  We  believe  that  the
accounting policies discussed below are critical to understanding our historical and future performance, as these policies relate to the more significant areas
involving management’s judgments and estimates.

Research and Development

Research and development costs are expensed as incurred. Advance payments for goods and services that will be used in future research and development
activities are expensed when the activity has been performed or when the goods have been received rather than when the payment is made. Upfront and
milestone payments due to third parties that perform research and development services on our behalf will be expensed as services are rendered or when
the milestone is achieved.

Research  and  development  costs  primarily  consist  of  personnel  related  expenses,  including  salaries,  benefits,  travel,  and  other  related  expenses,  stock-
based compensation, payments made to third parties for license and milestone costs related to in-licensed products and technology, payments made to third
party  contract  research  organizations  for  preclinical  and  clinical  studies,  investigative  sites  for  clinical  trials,  consultants,  the  cost  of  acquiring  and
manufacturing clinical trial materials, and costs associated with regulatory filings, laboratory costs and other supplies.

In accordance with Accounting Standards Codification (“ASC”) 730-10-25-1, Research and Development, costs incurred in obtaining technology licenses
are charged to research and development expense if the technology licensed has not reached commercial feasibility and has no alternative future use. In
each  case,  we  evaluate  if  the  license  agreement  results  in  the  acquisition  of  an  asset  or  a  business.  Such  licenses  we  purchased  require  substantial
completion of research and development, regulatory and marketing approval efforts in order to reach commercial feasibility and has no alternative future
use.  Accordingly,  the  total  purchase  price  for  the  licenses  acquired  during  the  period  is  reflected  as  research  and  development  on  the  Statements  of
Operations.

Accrued Research and Development Expense

We  record  accruals  for  estimated  costs  of  research,  preclinical,  clinical  and  manufacturing  development  within  accrued  expenses  which  are  significant
components of research and development expenses. A substantial portion of our ongoing research and development

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activities  is  conducted  by  third-party  service  providers  such  as  contract  research  organizations  in  connection  with  our  clinical  studies,  contract
manufacturing  organizations,  trial  sites  in  connection  with  our  clinical  studies  and  vendors  associated  with  licenses/milestones.  We  accrue  the  costs
incurred  under  agreements  with  these  third  parties  based  on  estimates  of  actual  work  completed  in  accordance  with  the  respective  agreements.  We
determine the estimated costs through the reviewing of open contracts, communicating with our personnel to identify services that have been performed on
our behalf and estimating the level of service performed and the associated cost incurred for the service when we have not yet been invoiced or otherwise
notified  of  the  actual  cost.  The  majority  of  our  service  providers  invoice  us  monthly  for  services  performed  or  when  contractual  milestones  are  met.
Payments made to third parties under these arrangements in advance of the performance of the related services are recorded as prepaid expenses until the
services are rendered.

If  the  actual  timing  of  the  performance  of  services  or  the  level  of  effort  varies  from  the  estimate,  we  adjust  accrued  expenses  or  prepaid  expenses
accordingly, which impact research and development expenses. Although we do not expect our estimates to be materially different from amounts actually
incurred, our understanding of the status and timing of services performed relative to the actual status and timing of services performed may vary and may
result in reporting amounts that are too high or too low in any particular period.

Stock-Based Compensation

We expense stock-based compensation to employees and non-employees over the requisite service period based on the estimated grant-date fair value of
the awards and forfeitures, which are recorded upon occurrence. Stock-based compensation for milestone awards will be measured and recorded if and
when it is probable that the milestone will be achieved. We estimate the fair value of stock option grants using the Black-Scholes Model. The assumptions
used in calculating the fair value of stock-based awards represent management’s best estimates and involve inherent uncertainties and the application of
management’s judgment.

We will continue to use judgment in evaluating the expected volatility, expected terms and interest rates utilized for our stock-based compensation expense
calculations  on  a  prospective  basis.  The  assumptions  underlying  these  valuations  represent  management’s  best  estimate,  which  involve  inherent
uncertainties  and  the  application  of  management  judgment.  As  a  result,  if  factors  or  expected  outcomes  change  and  we  use  significantly  different
assumptions or estimates, our stock-based compensation expense could be materially different. We expect to continue to grant options and other stock-
based awards in the future, and to the extent that we do, our stock-based compensation expense recognized in future periods will likely increase.

Common Stock Warrant Liabilities

We  have  issued  freestanding  warrants  to  purchase  shares  of  our  common  stock  in  connection  with  financing  activities.  Our  outstanding  common  stock
warrants  issued  in  connection  with  the  registered  direct  financing  completed  in  December  2022  (the  “December  2022  Registered  Direct  Offering”)  are
classified as liabilities on the balance sheet as they contain terms for redemption of the underlying security that are outside our control. We estimate the fair
value of warrants using the Black-Scholes Model. The assumptions used in calculating the fair value of warrants represent management’s best estimates
and involve inherent uncertainties and the application of management’s judgment. We will continue to use judgment in evaluating the expected volatility,
expected  terms  and  interest  rates  utilized  for  our  common  stock  warrant  liability  calculations  on  a  prospective  basis. The  assumptions  underlying  these
valuations represent management’s best estimate, which involve inherent uncertainties and the application of management judgment. As a result, if factors
or  expected  outcomes  change  and  we  use  significantly  different  assumptions  or  estimates,  our  common  stock  warrant  liabilities  could  be  materially
different.

The fair value of common stock warrant liabilities is re-measured at each financial reporting date and upon exercise with any changes in fair value being
recognized in gain (loss) on common stock warrant liabilities, a component of other income (loss), in the Statements of Operations. We will continue to re-
measure the fair value of the warrant liabilities until exercise or expiration of the related warrant.

Results of Operations

In  this  section,  we  discuss  the  results  of  our  operations  for  the  year  ended  December  31,  2023  compared  to  the  year  ended  December  31,  2022.  For  a
discussion  of  the  year  ended  December  31,  2022  compared  to  the  year  ended  December  31,  2021,  please  refer  to  Part  II,  Item  7,  “Management’s
Discussion and Analysis of Financial Condition and Results of Operations” in our Annual Report on Form 10-K for the year ended December 31, 2022.

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Comparison of the Years Ended December 31, 2023 and 2022

Revenue

For the year ended December 31, 2023, revenue was approximately $0.1 million compared to approximately $0.2 million for the year ended December 31,
2022, a decrease of approximately $0.1 million. The current and prior period revenue primarily consisted of the reimbursement of patent costs related to
the collaboration agreement with TGTX.

Research and Development Expenses

Research and development expenses primarily consist of personnel related expenses, including salaries, benefits, travel, and other related expenses, stock-
based compensation, payments made to third parties for license and milestone costs related to in-licensed products and technology, payments made to third
party  CROs  for  preclinical  and  clinical  studies,  investigative  sites  for  clinical  trials,  consultants,  the  cost  of  acquiring  and  manufacturing  clinical  trial
materials, costs associated with regulatory filings and patents, laboratory costs and other supplies.

For the year ended December 31, 2023, research and development expenses were approximately $43.6 million, compared to approximately $49.8 million
for the year ended December 31, 2022, a decrease of $6.2 million. The current period research and development expenses primarily consisted of $19.0
million related to commercial manufacturing costs and inventory build, which is expensed prior to approval, to support a potential launch of cosibelimab,
$7.0 million related to clinical costs for our product candidates, $3.6 million related to regulatory costs, including $3.2 million for the PDUFA fee to the
FDA for the BLA filing for cosibelimab in the first quarter of 2023, $2.3 million in license fees due upon the FDA filing acceptance of the BLA, $3.4
million  related  to  the  non-cash  annual  equity  fee  in  connection  with  the  Founders Agreement,  $5.1  million  related  to  salary  expenses  and  $1.2  million
related to stock compensation expense. For the year ended December 31, 2022, research and development expenses primarily consisted of $25.3 million
related  to  the  manufacturing  costs  of  our  product  candidates,  including  process  characterization,  validation  and  BLA  enabling  studies  for  cosibelimab,
$12.5 million related to clinical costs for our product candidates, including costs related to the since terminated phase 3 CONTERNO study, $1.9 million
related to the non-cash annual equity fee in connection with the Founders Agreement, $2.6 million related to regulatory costs, $4.5 million related to salary
expenses and $0.9 million related to stock compensation expense.

We anticipate research and development expenses in 2024 to decrease as compared to 2023 due primarily to decreased manufacture of cosibelimab drug
substance in 2024 and decreased clinical costs for our product candidates.

General and Administrative Expenses

General  and  administrative  expenses  consist  primarily  of  salaries  and  related  expenses,  including  stock-based  compensation,  for  executives  and  other
administrative personnel, recruitment expenses, professional fees and other corporate expenses, including investor relations, legal activities, and facilities-
related expenses.

For the years ended December 31, 2023 and 2022, general and administrative expenses were approximately $8.7 million. The current period general and
administrative expenses primarily consisted of stock compensation expense of $1.7 million, $1.6 million related to salary expenses, $1.0 million related to
our issuance of shares to Fortress pursuant to the Founders Agreement in connection with the sale of shares of our common stock, $1.8 million related to
legal  and  accounting  fees,  $0.3  million  related  to  marketing  costs  and  $0.3  million  related  to  investor  relation  fees.  The  prior  period  general  and
administrative expenses primarily consisted of stock compensation expense of $2.0 million, $1.5 million related to salary expenses, $1.9 million related to
legal and accounting fees, $0.4 million related to our issuance of shares to Fortress pursuant to the Founders Agreement in connection with the sale of
shares of our common stock, $0.3 million related to marketing costs and $0.4 million related to investor relation fees.

We anticipate general and administrative expenses in 2024 will remain relatively consistent with 2023.

Other Income (loss)

For  the  year  ended  December  31,  2023,  interest  income  was  approximately  $0.1  million  compared  to  approximately  $0.2  million  for  the  year  ended
December 31, 2022, a decrease of approximately $0.1 million. The decrease was primarily due to our cash balances between the periods.

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For  the  year  ended  December  31,  2023,  the  gain  on  common  stock  warrant  liabilities  were  approximately  $0.2  million,  compared  to  a  loss  of
approximately $4.5 million for the year ended December 31, 2022. The gain on common stock warrant liabilities in the current period is comprised of net
gains of approximately $7.9 million resulting from the fair value remeasurement of the common stock warrant liabilities at each reporting period in 2023
and  upon  exercise  of  a  portion  of  the  warrants  associated  with  the  December  2022  Registered  Direct  Offering.  The  gain  on  common  stock  warrant
liabilities in the current period was partially offset by a loss of approximately $7.7 million recorded on October 4, 2023 as part of the October 2023 warrant
exercise inducement associated with a portion of the warrants issued in the December 2022 Registered Direct Offering as a result of offering additional
warrants to the holder as part of the inducement. The loss on common stock warrant liabilities as of December 31, 2022 was comprised of the total initial
fair value of the liability exceeding the total proceeds and the fair value remeasurement of the common stock warrant liabilities on December 31, 2022,
associated with the December 2022 Registered Direct Offering.

Liquidity and Capital Resources

We have incurred substantial operating losses since our inception and expect to continue to incur significant operating losses for the foreseeable future and
may never become profitable. As of December 31, 2023, we had an accumulated deficit of $314.3 million.

During the year ended December 31, 2022, we sold a total of 532,816 shares of common stock under an At-the-Market Issuance Sales Agreement (the
“ATM”)  for  aggregate  total  gross  proceeds  of  approximately  $10.1  million  at  an  average  selling  price  of  $18.99  per  share,  resulting  in  net  proceeds  of
approximately $9.9 million after deducting commissions and other transaction costs.

In  December  2022,  we  closed  on  the  December  2022  Registered  Direct  Offering  for  the  issuance  and  sale  of  an  aggregate  of  950,000  shares  of  our
common  stock  at  a  purchase  price  of  $4.325  per  share.  In  addition,  the  offering  included  784,105  shares  of  common  stock  in  the  form  of  pre-funded
warrants  at  a  price  of  $4.3249. The  common  stock  and  the  pre-funded  warrants  were  sold  together  with  Series A  warrants  to  purchase  up  to  1,734,105
shares of common stock and Series B warrants to purchase up to 1,734,105 shares of common stock. The Series A warrants are exercisable immediately
upon  issuance  and  will  expire  five  years  following  the  issuance  date  and  have  an  exercise  price  of  $4.075  per  share  and  the  Series  B  warrants  are
exercisable immediately upon issuance and will expire eighteen months following the issuance date and have an exercise price of $4.075 per share. Total
gross  proceeds  from  the  December  2022  Registered  Direct  Offering  were  $7.5  million  with  net  proceeds  of  approximately  $6.7  million  after  deducting
approximately  $0.8  million  in  commissions  and  other  transaction  costs.  In  January  2023,  the  pre-funded  warrants  from  the  December  2022  Registered
Direct Offering were fully exercised. In October 2023, the Series A and Series B warrants from the December 2022 Registered Direct Offering were fully
exercised at a reduced exercise price of $1.76 per share as part of the October 2023 inducement offer letter agreement (see below).

In February 2023, we closed on a registered direct offering (the “February 2023 Registered Direct Offering”) for the issuance and sale of an aggregate of
1,428,572 shares of our common stock at a purchase price of $5.25 per share. In addition, the offering included 248,572 shares of common stock in the
form of pre-funded warrants at a price of $5.2499. In a concurrent private placement, we issued and sold Series A warrants to purchase up to 1,428,572
shares  of  common  stock  and  Series  B  warrants  to  purchase  up  to  1,428,572  shares  of  common  stock.  The  Series  A  and  B  warrants  are  exercisable
immediately  upon  issuance  with  an  exercise  price  of  $5.00  per  share. The  Series A  warrants  will  expire  five  years  following  the  issuance  date  and  the
Series B warrants will expire eighteen months following the issuance date. The total gross proceeds from the offering were approximately $7.5 million
with net proceeds of approximately $6.7 million after deducting approximately $0.8 million in commissions and other transaction costs. In February 2023,
the pre-funded warrants from the February 2023 Registered Direct Offering were fully exercised. In October 2023, the Series A and Series B warrants from
the February 2023 Registered Direct Offering were fully exercised at a reduced exercise price of $1.76 per share as part of the October 2023 inducement
offer letter agreement (see below).

In  April  2023,  we  closed  on  a  registered  direct  offering  (the  “April  2023  Registered  Direct  Offering”)  for  the  issuance  and  sale  of  an  aggregate  of
1,700,000 shares of our common stock at a purchase price of $3.60 per share. In a concurrent private placement, we issued and sold Series A warrants to
purchase up to 1,700,000 shares of common stock and Series B warrants to purchase up to 1,700,000 shares of common stock. The Series A and B warrants
are exercisable immediately upon issuance with an exercise price of $3.35 per share. The Series A warrants will expire five years following the issuance
date and the Series B warrants will expire eighteen months following the issuance date. The total gross proceeds from the offering were approximately $6.1
million with net proceeds of approximately $5.5 million after deducting approximately $0.6 million in commissions and other transaction costs.

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In May 2023, we closed on a registered direct offering (the “May 2023 Registered Direct Offering”) for the issuance and sale of an aggregate of 1,650,000
shares of our common stock at a purchase price of $3.071 per share. In addition, the offering included 1,606,269 shares of common stock in the form of
pre-funded warrants at a price of $3.0709. The common stock and the pre-funded warrants were sold together with Series A warrants to purchase up to
3,256,269  shares  of  common  stock  and  Series  B  warrants  to  purchase  up  to  3,256,269  shares  of  common  stock.  The  Series  A  and  B  warrants  are
exercisable immediately upon issuance with an exercise price of $2.821 per share. The Series A warrants will expire five years following the issuance date
and the Series B warrants will expire eighteen months following the issuance date. The total gross proceeds from the offering were approximately $10.0
million with net proceeds of approximately $9.1 million after deducting approximately $0.9 million in commissions and other transaction costs. In August
2023, the pre-funded warrants from the May 2023 Registered Direct Offering were fully exercised.

In July 2023, we closed on a registered direct offering (the “July 2023 Registered Direct Offering”) for the issuance and sale of an aggregate of 2,427,186
shares of our common stock at a purchase price of $3.09 per share. In addition, the offering included 809,062 shares of common stock in the form of pre-
funded  warrants  at  a  price  of  $3.0899.  The  common  stock  and  the  pre-funded  warrants  were  sold  together  with  Series A  warrants  to  purchase  up  to
3,236,248  shares  of  common  stock  and  Series  B  warrants  to  purchase  up  to  3,236,248  shares  of  common  stock.  The  Series  A  and  B  warrants  are
exercisable immediately upon issuance with an exercise price of $2.84 per share. The Series A warrants will expire five years following the issuance date
and the Series B warrants will expire eighteen months following the issuance date. The total gross proceeds from the offering were approximately $10.0
million  with  net  proceeds  of  approximately  $9.1  million  after  deducting  approximately  $0.9  million  in  commissions  and  other  transaction  costs.  In
September 2023, the pre-funded warrants from the July 2023 Registered Direct Offering were fully exercised.

In October 2023, we entered into an inducement offer letter agreement (the “October 2023 Inducement”) with a certain holder of our existing warrants to
exercise for cash an aggregate of 6,325,354 shares of our common stock at a reduced exercise price of $1.76 per share. The warrants were issued to the
holder on December 16, 2022 with an exercise price of $4.075 per share and on February 22, 2023 with an exercise price of $5.00 per share as part of
registered  direct  offerings.  As  part  of  the  inducement,  we  agreed  to  issue  new  unregistered  Series  A  warrants  to  purchase  up  to  6,325,354  shares  of
Common Stock and new unregistered Series B warrants to purchase up to 6,325,354 shares of Common Stock (collectively, the “October 2023 Common
Stock Warrants”). The Series A and B warrants are exercisable immediately upon issuance with an exercise price of $1.51 per share. The Series A warrants
will expire five years following the issuance date and the Series B warrants will expire twenty-four months following the issuance date. The total gross
proceeds from the exercise were approximately $11.1 million with net proceeds of approximately $10.0 million after deducting approximately $1.1 million
in commissions and other transaction costs. Upon the close of the transaction, we issued the holder 110,000 of the 6,325,354 shares of common stock that
were issuable upon exercise of the existing warrants. Due to the beneficial ownership limitation provisions in the inducement offer letter agreement, the
remaining 6,215,354 shares were initially unissued, and held in abeyance for the benefit of the holder until notice from the holder that the shares may be
issued in compliance with the agreement. As of December 31, 2023, 1,134,000 shares remained in abeyance. These shares were fully issued to the holder in
January 2024.

As a result of the October 2023 Inducement, the Company presents a deemed dividend for the modification of certain of its existing warrants and issuance
of the October 2023 Common Stock Warrants of $7.5 and $0 million for the years ended December 31, 2023 and 2022, respectively. The deemed divided
was included in net loss attributable to common stockholders in the calculation of net loss per share in the consolidated statements of operations.

Our major sources of cash have been proceeds from the sale of equity securities and the exercise of warrants. We expect to use these proceeds primarily for
general corporate purposes, which may include financing our growth, developing new or existing product candidates, and funding capital expenditures,
acquisitions and investments.

We believe that our cash and cash equivalents are only sufficient to fund our operating expenses into the third quarter of 2024. We will need to secure
additional  funds  through  equity  or  debt  offerings,  or  other  potential  sources  such  as  partnerships  to  fully  develop  and  commercialize,  if  approved,  our
product candidates. Our estimate as to how long we expect our existing cash to be able to continue to fund our operations is based on assumptions that may
prove to be wrong, and we could use our available capital resources sooner than we currently expect. Further, changing circumstances, some of which may
be  beyond  our  control,  could  cause  us  to  consume  capital  faster  than  we  currently  anticipate,  and  we  may  need  to  seek  additional  funds  sooner  than
planned.  We  cannot  be  certain  that  additional  funding  will  be  available  on  acceptable  terms,  or  at  all.  These  factors  individually  and  collectively  raise
substantial doubt about our ability to continue as a going concern.

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Off-Balance Sheet Arrangements

We  are  not  party  to  any  off-balance  sheet  transactions.  We  have  no  guarantees  or  obligations  other  than  those  which  arise  out  of  normal  business
operations.

Cash Flows for the Years Ended December 31, 2023 and 2022

Operating Activities

Net cash used in operating activities was $47.6 million for the year ended December 31, 2023, compared to $57.6 million for the year ended December 31,
2022. The decrease in net cash used in operating activities was due primarily to greater manufacturing costs to support the BLA filing of cosibelimab in the
prior period as well as a reduction in clinical costs between the two periods.

Investing Activities

There were no investing activities for the years ended December 31, 2023 and 2022.

Financing Activities

Net cash provided by financing activities was $40.5 million for the year ended December 31, 2023, which related to net proceeds of $30.3 million from the
issuance of common shares and warrants from the February 2023 Registered Direct Offering, April 2023 Registered Direct Offering, May 2023 Registered
Direct Offering and July 2023 Registered Direct Offering, as well as $10.1 million from the October 2023 Inducement. Net cash provided by financing
activities was $14.9 million for the year ended December 31, 2022, which related to net proceeds of $9.9 million from the issuance of common stock as
part of our ATM offerings, as well as net proceeds of $6.7 million from the issuance of common shares and warrants from the December 2022 Registered
Direct  Offering.  The  prior  year’s  amount  was  partially  offset  by  $1.7  million  paid  for  taxes  related  to  the  net  settlement  of  shares  for  employee  stock
vestings.

Recently Issued Accounting Standards

See Note 2 to our Financial Statements.

Item 7A.     Quantitative and Qualitative Disclosures About Market Risks

Market risk represents the risk of loss that may result from the change in value of financial instruments due to fluctuations in their market price. Market
risk is inherent in all financial instruments. Market risk may be exacerbated in times of trading illiquidity when market participants refrain from transacting
in  normal  quantities  and/or  at  normal  bid-offer  spreads. The  primary  quantifiable  market  risk  associated  with  our  financial  instruments  is  sensitivity  to
changes  in  interest  rates.  Interest  rate  risk  represents  the  potential  loss  from  adverse  changes  in  market  interest  rates.  The  primary  objective  of  our
investment activities is to preserve principal while maximizing our income from investments and minimizing our market risk. As of December 31, 2023,
our  portfolio  of  financial  instruments  consists  of  cash  equivalents,  including  money  market  funds.  Due  to  the  short-term  nature  of  these  financial
instruments, we believe there is no material exposure to interest rate risk, and/or credit risk, arising from our portfolio of financial instruments.

Our assets and liabilities are denominated in U.S. dollars. Consequently, we have not considered it necessary to use foreign currency contracts or other
derivative  instruments  to  manage  changes  in  currency  rates. We  do  not  now,  nor  do  we  plan  to,  use  derivative  financial  instruments  for  speculative  or
trading purposes. However, these circumstances might change.

Item 8.     Financial Statements and Supplementary Data.

The information required by this Item is set forth in the financial statements and notes thereto beginning at page F-1 of this Annual Report on Form 10-K.

Item 9.     Changes in and Disagreements with Accountants on Accounting and Financial Disclosure.

None.

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Item 9A.     Controls and Procedures.

Evaluation of Disclosure Controls and Procedures.

As  of  December  31,  2023,  management  carried  out,  under  the  supervision  and  with  the  participation  of  our  principal  executive  officer  and  principal
financial officer, an evaluation of the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rules 13a-15(e) and
15d-15(e) under the Exchange Act). Our disclosure controls and procedures are designed to provide reasonable assurance that information we are required
to disclose in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified
in applicable rules and forms. Based upon that evaluation, our principal executive officer and principal financial officer concluded that, as of December 31,
2023, our disclosure controls and procedures were effective.

Management’s Report on Internal Control over Financial Reporting.

Our management is responsible for establishing and maintaining adequate internal control over financial reporting (as defined in Rule 13a-15(f) or Rule
15d-15(f) under the Exchange Act). Our management assessed the effectiveness of our internal control over financial reporting as of December 31, 2023.
In making this assessment, our management used the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission, known
as  COSO,  in  Internal  Control-Integrated  Framework  (2013).  Our  management  has  concluded  that,  as  of  December  31,  2023,  our  internal  control  over
financial reporting was effective based on these criteria.

Changes in Internal Control Over Financial Reporting.

There were no changes in our internal control over financial reporting during the most recent fiscal quarter that have materially affected, or are reasonably
likely to materially affect, our internal control over financial reporting.

Limitations on the Effectiveness of Controls.

Our management, including our principal executive officer and principal financial officer, does not expect that our disclosure controls and procedures or
our internal control over financial reporting will prevent all errors and all fraud. A control system, no matter how well conceived and operated, can provide
only reasonable, not absolute, assurance that the objectives of the control system are met. Further, the design of a control system must reflect the fact that
there  are  resource  constraints,  and  the  benefits  of  controls  must  be  considered  relative  to  their  costs.  Because  of  the  inherent  limitations  in  all  control
systems,  no  evaluation  of  controls  can  provide  absolute  assurance  that  all  control  issues  and  instances  of  fraud,  if  any,  within  our  company  have  been
detected.

Item 9B.     Other Information

During the three months ended December 31, 2023, none of our directors or officers (as defined in Rule 16a-1(f) of the Securities Exchange Act of 1934,
as amended) adopted, modified or terminated a Rule 10b5-1 trading arrangement or non-Rule 10b5-1 trading arrangement (as such terms are defined in
Item 408 of Regulation S-K of the Securities Act of 1933).

Item 9C.     Disclosure Regarding Foreign Jurisdictions that Prevent Inspections

Not applicable.

PART III

Item 10.     Directors, Executive Officers and Corporate Governance

The information required by this Item is incorporated herein by reference from our Proxy Statement for our 2024 Annual Meeting of Stockholders.

56

Table of Contents

Item 11.     Executive Compensation

The information required by this Item is incorporated herein by reference from our Proxy Statement for our 2024 Annual Meeting of Stockholders.

Item 12.     Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

The information required by this Item is incorporated herein by reference from our Proxy Statement for our 2024 Annual Meeting of Stockholders.

Item 13.     Certain Relationships and Related Transactions, and Director Independence.

The information required by this Item is incorporated herein by reference from our Proxy Statement for our 2024 Annual Meeting of Stockholders.

Item 14.     Principal Accounting Fees and Services

The information required by this Item is incorporated herein by reference from our Proxy Statement for our 2024 Annual Meeting of Stockholders.

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Table of Contents

Item 15.      Exhibits and Financial Statement Schedules

(a)Financial Statements.

The following financial statements are filed as part of this report:

PART IV

Report of Independent Registered Public Accounting Firm (KPMG, LLP; Boston, MA; PCAOB ID#185)
Financial Statements:
Balance Sheets as of December 31, 2023 and 2022
Statements of Operations for the Years Ended December 31, 2023 and 2022
Statements of Stockholders’ Equity for the Years Ended December 31, 2023 and 2022
Statements of Cash Flows for the Years Ended December 31, 2023 and 2022
Notes to Financial Statements

F-2

F-4
F-5
F-6
F-7
F-8 - F-27

58

Table of Contents

(b)Exhibits.

Exhibit No.

     Description

3.1

3.2

3.2.1

3.2.2

3.2.3

3.2.4

3.2.5

3.3

4.1

4.2

4.3

4.4

4.5

4.6

4.7

4.8

4.9

4.10

4.11

  Amended  and  Restated  Certificate  of  Incorporation  of  Checkpoint  Therapeutics,  Inc.,  filed  as  Exhibit  3.1  to  Form  10-12G  filed  on

July 11, 2016 (File No. 000-55506) and incorporated herein by reference.

Certificate of Amendment to Amended and Restated Certificate of Incorporation of Checkpoint Therapeutics, Inc., filed as Exhibit 3.2
to Form 10-12G filed on July 11, 2016 (File No. 000-55506) and incorporated herein by reference.

Certificate of Amendment to Amended and Restated Certificate of Incorporation of Checkpoint Therapeutics, Inc., filed as Exhibit 10.1
to Quarterly Report on Form 10-Q filed on August 7, 2018 (File No. 001-38128) and incorporated herein by reference.

Certificate of Amendment to Amended and Restated Certificate of Incorporation of Checkpoint Therapeutics, Inc., filed as Exhibit 3.1
to Form 8-K filed on June 4, 2020 (File No. 001-38128) and incorporated herein by reference.

Certificate of Amendment to Amended and Restated Certificate of Incorporation of Checkpoint Therapeutics, Inc., filed as Exhibit 3.1
to Form 8-K filed on June 11, 2021 (File No. 001-38128) and incorporated herein by reference.

Certificate of Amendment to Amended and Restated Certificate of Incorporation of Checkpoint Therapeutics, Inc., filed as Exhibit 3.1
to Form 8-K filed on December 5, 2022 (File No. 001-38128) and incorporated herein by reference.

Certificate of Amendment to Amended and Restated Certificate of Incorporation of Checkpoint Therapeutics, Inc., filed as Exhibit 3.1
to Form 8-K filed on June 13, 2023 (File No. 001-38128) and incorporated herein by reference.

Bylaws  of  Checkpoint  Therapeutics,  Inc.,  filed  as  Exhibit  3.3  to  Form  10-12G  filed  on  July  11,  2016  (File  No.  000-55506)  and
incorporated herein by reference.

Specimen certificate evidencing shares of common stock, filed as Exhibit 4.1 to Form 10-12G filed on July 11, 2016 (File No. 000-
55506) and incorporated herein by reference.

Form of warrant agreement, filed as Exhibit 4.2 to Form 10-12G filed on July 11, 2016 (File No. 000-55506) and incorporated herein
by reference.

Form  of  pre-funded  common  stock  purchase  warrant,  filed  as  Exhibit  4.1  to  Form  8-K  filed  on  December  16,  2022  (File  No.  001-
38128) and incorporated herein by reference.

Form  of  Series A/B  common  stock  purchase  warrant,  filed  as  Exhibit  4.2  to  Form  8-K  filed  on  December  16,  2022  (File  No.  001-
38128) and incorporated herein by reference.

Form of placement agent warrant, filed as Exhibit 4.3 to Form 8-K filed on December 15, 2022 (File No. 001-38128) and incorporated
herein by reference.

  Description of Securities of Checkpoint Therapeutics, Inc. *

Form of pre - funded common stock purchase warrant, filed as Exhibit 4.1 to Form 8 - K filed on February 22, 2023 (File No. 001 -
38128) and incorporated herein by reference.

Form of Series A/B common stock purchase warrant, filed as Exhibit 4.2 to Form 8 - K filed on February 22, 2023 (File No. 001 -
38128) and incorporated herein by reference.

Form  of  placement  agent  warrant,  filed  as  Exhibit  4.3  to  Form  8  -  K  filed  on  February  22,  2023  (File  No.  001  -  38128)  and
incorporated herein by reference.

Form of Series A/B common stock purchase warrant, filed as Exhibit 4.1 to Form 8 - K filed on April 4, 2023 (File No. 001 - 38128)
and incorporated herein by reference.

Form of placement agent warrant, filed as Exhibit 4.2 to Form 8 - K filed on April 4, 2023 (File No. 001 - 38128) and incorporated
herein by reference.

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4.12

4.13

4.14

4.15

4.16

4.17

4.18

4.19

4.20

10.1

10.2

10.3

10.4

10.5

10.6

10.7

10.8

Form of pre - funded common stock purchase warrant, filed as Exhibit 4.1 to Form 8 - K filed on May 24, 2023 (File No. 001 - 38128)
and incorporated herein by reference.

Form of Series A/B common stock purchase warrant, filed as Exhibit 4.2 to Form 8 - K filed on May 24, 2023 (File No. 001 - 38128)
and incorporated herein by reference.

Form of placement agent warrant, filed as Exhibit 4.3 to Form 8 - K filed on May 24, 2023 (File No. 001 - 38128) and incorporated
herein by reference.

Form of pre - funded common stock purchase warrant, filed as Exhibit 4.1 to Form 8 - K filed on July 31, 2023 (File No. 001 - 38128)
and incorporated herein by reference.

Form of Series A/B common stock purchase warrant, filed as Exhibit 4.2 to Form 8 - K filed on July 31, 2023 (File No. 001 - 38128)
and incorporated herein by reference.

Form of placement agent warrant, filed as Exhibit 4.3 to Form 8 - K filed on July 31, 2023 (File No. 001 - 38128) and incorporated
herein by reference.

Form of Series A/B common stock purchase warrant, filed as Exhibit 4.1 to Form 8 - K filed on October 3, 2023 (File No. 001 - 38128)
and incorporated herein by reference.

Form of placement agent warrant, filed as Exhibit 4.2 to Form 8 - K filed on October 3, 2023 (File No. 001 - 38128) and incorporated
herein by reference.

Form of Indenture, filed as Exhibit 4.4 to Form S - 3 filed on March 24, 2023 (Filed No. 001 - 38128) and incorporated herein by
reference.

Founders Agreement between Fortress Biotech, Inc. and Checkpoint Therapeutics, Inc. dated March 17, 2015, filed as Exhibit 10.1 to
Form 10-12G filed on July 11, 2016 (File No. 000-55506) and incorporated herein by reference.

  Amended and Restated Founders Agreement between Fortress Biotech, Inc. and Checkpoint Therapeutics, Inc. dated July 11, 2016 and
effective as of March 17, 2015, filed as Exhibit 10.2 to Form 10-12G filed on July 11, 2016 (File No. 000-55506) and incorporated
herein by reference.

  Amendment 1 to Amended and Restated Founders Agreement between Fortress Biotech, Inc. and Checkpoint Therapeutics, Inc., dated
October  5,  2017  filed  as  Exhibit  10.1  to  Quarterly  Report  on  Form  10-Q  filed  on  November  3,  2017  (File  No.  001-38128)  and
incorporated herein by reference.

  Management  Services Agreement  between  Fortress  Biotech,  Inc.  and  Checkpoint Therapeutics,  Inc.  dated  March  17,  2015,  filed  as

Exhibit 10.3 to Form 10-12G filed on July 11, 2016 (File No. 000-55506) and incorporated herein by reference.

Common Stock Warrant issued by Checkpoint Therapeutics, Inc. to NSC Biotech Venture Fund I, LLC dated July 30, 2015, filed as
Exhibit 10.5 to Form 10-12G filed on July 11, 2016 (File No. 000-55506) and incorporated herein by reference.

License Agreement by and between Checkpoint Therapeutics, Inc. and Dana-Farber Cancer Institute, Inc. dated March 2, 2015, filed as
Exhibit 10.6 to Form 10-12G filed on July 11, 2016 (File No. 000-55506) and incorporated herein by reference. **

  Amendment 1 to License Agreement by and between Checkpoint Therapeutics, Inc. and Dana-Farber Cancer Institute dated October 5,

2015, filed as Exhibit 10.7 to Form 10-12G filed on July 11, 2016 (File No. 000-55506) and incorporated herein by reference. **

  Amendment 2 to License Agreement by and between Checkpoint Therapeutics, Inc. and Dana-Farber Cancer Institute dated April 12,
2016, filed as Exhibit 10.8 to Annual Report on Form 10-K filed on March 17, 2017 (File No. 000-55506) and incorporated herein by
reference.

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Table of Contents

10.9

10.10

10.11

10.12

10.12.1

10.12.2

10.12.3

10.13

10.13.1

10.14

10.14.1

10.15

10.16

10.17

10.18

10.19

Amendment  3  to  License  Agreement  by  and  between  Checkpoint  Therapeutics,  Inc.  and  Dana-Farber  Cancer  Institute  dated
October  24,  2016,  filed  as  Exhibit  10.9  to  Annual  Report  on  Form  10-K  filed  on  March  17,  2017  (File  No.  000-55506)  and
incorporated herein by reference.

License Agreement  by  and  between  NeuPharma  Inc.  and  Coronado  Biosciences,  Inc.  (Fortress’  predecessor)  dated  March  17,  2015
(assigned to Checkpoint Therapeutics, Inc. under the Assignment and Assumption Agreement by and between Fortress Biotech, Inc.
and Checkpoint Therapeutics, Inc. dated March 17, 2015), filed as Exhibit 10.8 to Form 10-12G filed on July 11, 2016 (File No. 000-
55506) and incorporated herein by reference. **

Amendment  1  to  License Agreement  by  and  between  NeuPharma  Inc.  and  Checkpoint Therapeutics,  Inc.  dated  February  21,  2017,
filed  as  Exhibit  10.11  to Annual  Report  on  Form  10-K  filed  on  March  17,  2017  (File  No.  000-55506)  and  incorporated  herein  by
reference.

Collaboration  Agreement  by  and  between  Checkpoint  Therapeutics,  Inc.  and  TG  Therapeutics,  Inc.  dated  March  3,  2015,  filed  as
Exhibit 10.9 to Form 10-12G filed on July 11, 2016 (File No. 000-55506) and incorporated herein by reference. **

Amended  and  Restated  Collaboration  Agreement  by  and  between  Checkpoint  Therapeutics,  Inc.  and  TG  Therapeutics,  Inc.  dated
June 19, 2019, filed as Exhibit 10.1 to Quarterly Report on Form 10-Q filed on August 8, 2019 (File No. 001-38128) and incorporated
herein by reference. **

Mutual  Termination  Agreement  (Sublicense)  by  and  between  Checkpoint  Therapeutics,  Inc.  and  TG  Therapeutics,  Inc.  dated
September 30, 2023.

Mutual  Termination  Agreement  (Collaboration)  by  and  between  Checkpoint  Therapeutics,  Inc.  and  TG  Therapeutics,  Inc.  dated
September 30, 2023.

Checkpoint Therapeutics, Inc. Amended and Restated 2015 Incentive Plan, filed as Exhibit 10.10 to Form 10-12G filed on July 11,
2016 (File No. 000-55506) and incorporated herein by reference. #

Checkpoint Therapeutics,  Inc. Amended  and  Restated  2015  Incentive  Plan,  filed  as  Exhibit  10.1  to  Quarterly  Report  on  Form  10-Q
filed on August 9, 2017 (File No. 001-38128) and incorporated herein by reference. #

Checkpoint Therapeutics, Inc. Amended and Restated 2015 Incentive Plan, filed as Exhibit 10.1 to Form 8-K filed on June 4, 2020
(File No. 001-38128) and incorporated herein by reference. #

Amendment  to  Checkpoint  Therapeutics,  Inc.  Amended  and  Restated  2015  Incentive  Plan,  filed  as  Exhibit  10.1  to  Form  8-K  on
December 5, 2022 (File No. 001-38128) and incorporated herein by reference. #

Checkpoint Therapeutics, Inc. Amended and Restated 2015 Incentive Plan, filed as Exhibit 10.1 to Form 8 - K filed on June 13, 2023
(File No. 001 - 38128) and incorporated herein by reference. #

Executive Employment Agreement by and between James F. Oliviero III and Checkpoint Therapeutics, Inc. dated October 13, 2015,
filed as Exhibit 10.11 to Form 10-12G filed on July 11, 2016 (File No. 000-55506) and incorporated herein by reference. #

Amendment  to  Executive  Employment  Agreement  by  and  between  James  F.  Oliviero  III  and  Checkpoint  Therapeutics,  Inc.  dated
September  27,  2016,  filed  as  Exhibit  10.1  to  Form  8-K  filed  on  October  3,  2016  (File  No.  000-55506)  and  incorporated  herein  by
reference. #

Amendment  No.  2,  dated  December  15,  2016,  to  the  Executive  Employment Agreement  dated  October  13,  2015,  by  and  between
Checkpoint Therapeutics, Inc. and James F. Oliviero III, filed as Exhibit 10.16 to Annual Report on Form 10-K filed on March 17,
2017 (File No. 000-55506) and incorporated herein by reference. #

Amendment  No.  3,  dated  January  30,  2018,  to  the  Executive  Employment  Agreement  dated  October  13,  2015,  by  and  between
Checkpoint Therapeutics, Inc. and James F. Oliviero III, filed as Exhibit 10.21 to Annual Report on Form 10-K filed on March 16,
2018 (File No. 001-38128) and incorporated herein by reference. #

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10.20

10.21

10.22

10.23

10.24

10.25

10.26

10.27

10.28

10.29

10.30

10.31

10.32

10.33

10.34

Amendment  No.  4,  dated  October  7,  2019,  to  the  Executive  Employment  Agreement  dated  October  13,  2015,  by  and  between
Checkpoint Therapeutics, Inc. and James F. Oliviero III, filed as Exhibit 10.1 to Quarterly Report on Form 10-Q filed on November 12,
2019 (File No. 001-38128) and incorporated herein by reference. #

Amendment  No.  5,  dated  September  24,  2020,  to  the  Executive  Employment Agreement  dated  October  13,  2015,  by  and  between
Checkpoint Therapeutics, Inc. and James F. Oliviero III, filed as Exhibit 10.1 to Quarterly Report on Form 10-Q filed on November 6,
2020 (File No. 001-38128) and incorporated herein by reference. #

Non-Employee Directors Compensation Plan, filed as Exhibit 10.13 to Form 10-12G filed on July 11, 2016 (File No. 000-55506) and
incorporated herein by reference. #

Amended and Restated Non-Employee Directors Compensation Plan, filed as Exhibit 10.2 to Quarterly Report on Form 10-Q filed on
August 9, 2017 (File No. 001-38128) and incorporated herein by reference. #

Amended and Restated Non - Employee Directors Compensation Plan, filed as Exhibit 10.1 to Quarterly Report on Form 10 - Q filed
on August 14, 2023 (File No. 001 - 38128) and incorporated herein by reference. #

Board Advisory  Services Agreement  by  and  between  Caribe  BioAdvisors,  LLC  and  Checkpoint Therapeutics,  Inc.  dated  January  1,
2017, filed as Exhibit 10.19 to Annual Report on Form 10-K filed on March 17, 2017 (File No. 000-55506) and incorporated herein by
reference. #

License  Agreement  by  and  between  Jubilant  Biosys  Limited  and  Checkpoint  Therapeutics,  Inc.,  dated  May  26,  2016,  filed  as
Exhibit 10.18 to Form 10-12G filed on July 11, 2016 (File No. 000-55506) and incorporated herein by reference. **

Amendment 1 to License Agreement by and between Jubilant Biosys Limited and Checkpoint Therapeutics, Inc. dated December 13,
2016, filed as Exhibit 10.26 to Annual Report on Form 10-K filed on March 17, 2017 (File No. 000-55506) and incorporated herein by
reference.

Amendment  2  to  License Agreement  by  and  between  Jubilant  Biosys  Limited  and  Checkpoint  Therapeutics,  Inc.  dated  March  31,
2017, filed as Exhibit 10.2 to Quarterly Report on Form 10-Q filed on May 10, 2017 (File No. 000-55506) and incorporated herein by
reference.

Sublicense  Agreement  by  and  between  TG  Therapeutics,  Inc.  and  Checkpoint  Therapeutics,  Inc.,  dated  May  26,  2016,  filed  as
Exhibit 10.19 to Form 10-12G/A filed on August 19, 2016 (File No. 000-55506) and incorporated herein by reference. **

Amendment 1 to Sublicense Agreement by and between TG Therapeutics, Inc. and Checkpoint Therapeutics, Inc. dated December 13,
2016, filed as Exhibit 10.28 to Annual Report on Form 10-K filed on March 17, 2017 (File No. 000-55506) and incorporated herein by
reference.

Amendment  2  to  Sublicense Agreement  by  and  between  TG  Therapeutics,  Inc.  and  Checkpoint  Therapeutics,  Inc.  dated  March  17,
2017, filed as Exhibit 10.1 to Quarterly Report on Form 10-Q filed on May 10, 2017 (File No. 000-55506) and incorporated herein by
reference.

Assignment  and Assumption Agreement  by  and  between  Fortress  Biotech,  Inc.  and  Checkpoint  Therapeutics,  Inc.  dated  March  17,
2015, filed as Exhibit 10.21 to Form 10-12G/A filed on August 19, 2016 (File No. 000-55506) and incorporated herein by reference.

Collaboration Agreement by and between Adimab, LLC and Checkpoint Therapeutics, Inc., dated January 22, 2019, filed as exhibit
10.31 to Annual Report on Form 10-K filed on March 18, 2019 (File No. 001-38128) and incorporated herein by reference. **

Master Services Agreement, dated November 8, 2017, between Checkpoint Therapeutics, Inc. and Samsung Biologics Co., Ltd., filed
as  Exhibit  10.2  to  Quarterly  Report  on  Form  10-Q  filed  on  November  6,  2020  (File  No.  001-38128)  and  incorporated  herein  by
reference. **

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10.35

10.36

10.37

10.38

10.39

10.40

23.1

24.1

31.1

31.2

32.1

32.2

97.1

101

Securities Purchase Agreement, dated December 14, 2022, between Checkpoint Therapeutics, Inc. and the Purchaser named therein,
filed as Exhibit 10.1 to Form 8-K filed on December 16, 2022 (File No. 001-38128) and incorporated herein by reference.

Securities  Purchase Agreement,  dated  February  20,  2023,  between  Checkpoint  Therapeutics,  Inc.  and  the  Purchaser  named  therein,
filed as Exhibit 10.1 to Form 8-K filed on February 22, 2023 (File No. 001-38128) and incorporated herein by reference.

Securities Purchase Agreement, dated March 30, 2023, between Checkpoint Therapeutics, Inc. and the Purchasers named therein, filed
as Exhibit 10.1 to Form 8-K filed on April 4, 2023 (File No. 001-38128) and incorporated herein by reference.

Securities Purchase Agreement, dated May 23, 2023, between Checkpoint Therapeutics, Inc. and the Purchaser named therein, filed as
Exhibit 10.1 to Form 8-K filed on May 24, 2023 (File No. 001-38128) and incorporated herein by reference.

Securities Purchase Agreement, dated July 28, 2023, between Checkpoint Therapeutics, Inc. and the Purchasers named therein, filed as
Exhibit 10.1 to Form 8-K filed on July 31, 2023 (File No. 001-38128) and incorporated herein by reference.

Inducement  Offer  to  Exercise  Warrants  Issued  in  December  2022  and  February  2023,  filed  as  Exhibit  10.1  to  Form  8-K  filed  on
October 3, 2023 (File No. 001-38128) and incorporated herein by reference.

Consent of Independent Registered Public Accounting Firm, KPMG, LLP. *

Power of Attorney (included on signature page). *

Certification of Principal Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. *

Certification of Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. *

Certification of Principal Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. *

Certification of Principal Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. *

Policy Related to Recovery of Erroneously Awarded Compensation. *

The  following  financial  information  from  the  Company’s Annual  Report  on  Form  10-K  for  the  period  ended  December  31,  2023,
formatted in Extensible Business Reporting Language (XBRL): (i) the Consolidated Balance Sheets, (ii) the Consolidated Statements
of  Operations,  (iii)  the  Consolidated  Statement  of  Stockholders’  Equity,  (iv)  the  Consolidated  Statements  of  Cash  Flows,  and
(v) Notes to the Consolidated Financial Statements.

104

Cover page from the Company’s Annual Report on Form 10-K for the year ended December 31, 2023, formatted in Inline XBRL.

Filed herewith.

*
** Certain portions of this exhibit have been omitted pursuant to Item 601(b)(10) of Regulation S-K. 
#

Management Compensation Arrangement.

Item 16.     Form 10-K Summary

None.

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INDEX TO FINANCIAL STATEMENTS

Report of Independent Registered Public Accounting Firm (KPMG, LLP; Boston, MA; PCAOB ID#185)
Balance Sheets as of December 31, 2023 and 2022
Statements of Operations for the Years Ended December 31, 2023 and 2022
Statements of Changes in Stockholders’ Equity (Deficit) for the Years Ended December 31, 2023 and 2022
Statements of Cash Flows for the Years Ended December 31, 2023 and 2022
Notes to Financial Statements

F-2
F-4
F-5
F-6
F-7
F-8 - F-27

F-1

Table of Contents

To the Stockholders and Board of Directors
Checkpoint Therapeutics, Inc.

Opinion on the Financial Statements

Report of Independent Registered Public Accounting Firm

We  have  audited  the  accompanying  balance  sheets  of  Checkpoint  Therapeutics,  Inc.  (the  Company)  as  of  December  31,  2023  and  2022,  the  related
statements  of  operations,  stockholders’  equity  (deficit),  and  cash  flows  for  each  of  the  years  in  the  two-year  period  ended  December  31,  2023,  and  the
related notes (collectively, the financial statements). In our opinion, the financial statements present fairly, in all material respects, the financial position of
the Company as of December 31, 2023, and the results of its operations and its cash flows for each of the years in the two-year period ended December 31,
2023, in conformity with U.S. generally accepted accounting principles.

Going Concern

The accompanying financial statements have been prepared assuming that the Company will continue as a going concern. As discussed in Note 1 to the
financial statements, the Company has suffered recurring losses from operations and has a net capital deficiency that raise substantial doubt about its ability
to continue as a going concern. Management’s plans in regard to these matters are also described in Note 1. The financial statements do not include any
adjustments that might result from the outcome of this uncertainty.

Basis for Opinion

These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these 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 a critical audit matter does not alter in any way our opinion
on the financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical
audit matter or on the accounts or disclosures to which it relates.

F-2

Table of Contents

Accounting for and fair value of the warrant inducement transaction

As discussed in Notes 6 and 7 to the financial statements, in October 2023, the Company entered into a warrant inducement transaction with a holder
of certain existing warrants. As part of the inducement, the Company issued new unregistered Series A and Series B warrants. The Series A and B
warrants  are  exercisable  immediately  upon  issuance  with  an  exercise  price  of  $1.51  per  share. The  total  gross  proceeds  from  the  inducement  were
approximately $11.1 million with net proceeds of approximately $10.0 million after deducting commissions and other transaction costs. Prior to the
inducement,  some  of  the  existing  warrants  were  liability  classified  and  accounted  for  at  fair  value. At  the  date  of  the  inducement,  the  Company
revalued the existing liability classified warrants which resulted in a loss on common stock warrant liabilities. The other existing warrants, which were
equity classified, were revalued to calculate the difference in fair value as a result of the change in exercise price, which was recorded as a deemed
dividend. The Company also calculated the fair value of the Series A and Series B warrants and allocated that fair value to the existing warrants on a
weighted basis.  The Company used the Black-Scholes model to determine the estimated fair value of the warrants.

We identified the evaluation of the Company’s accounting for the inducement transaction and the determination of the fair value of the warrants as a
critical audit matter. Specifically, challenging and complex auditor judgment and specialized skills and knowledge were required in evaluating 1) the
application of the relevant accounting guidance for equity and liability classified warrants and 2) the estimated fair value of the warrants due to the
degree of subjectivity associated with the volatility assumption. The following are the primary procedures we performed to address this critical audit
matter.

We inspected the Company’s accounting analysis for the transaction. We involved professionals with specialized skills and knowledge, who assisted in
inspecting  the  underlying  agreements  to  understand  the  relevant  terms  and  conditions  of  the  transaction  and  evaluating  whether  the  Company’s
accounting for the transaction is in accordance with the relevant accounting guidance. We also involved valuation professionals with specialized skills
and knowledge who assisted in:

● developing an independent expectation of the volatility assumption based on consideration of implied share price volatility information

● developing an independent range of the fair value of the warrant liability for the December 2022 warrants, the fair value of the February 2023
equity classified warrants, and the fair value of both the Series A and Series B warrants as of the inducement date using publicly available market
data and the independently developed volatility assumption

● comparing  the  independently  developed  ranges  of  the  fair  value  to  the  respective  fair  value  of  the  warrant  liability  and  the  equity  classified

awards determined by the Company.

We have served as the Company’s auditor since 2022.
Boston, Massachusetts
March 22, 2024

F-3

CHECKPOINT THERAPEUTICS, INC.
BALANCE SHEETS
(in thousands, except share and per share amounts)

Table of Contents

ASSETS
Current Assets:

Cash and cash equivalents
Prepaid expenses and other assets
Other receivables - related party

Total current assets

Total Assets

LIABILITIES AND STOCKHOLDERS’ EQUITY (DEFICIT)
Current Liabilities:

Accounts payable and accrued expenses
Accounts payable and accrued expenses - related party
Common stock warrant liabilities

Total current liabilities

Total Liabilities
Commitments and Contingencies
Stockholders’ Equity (Deficit)
Common Stock ($0.0001 par value), 80,000,000 and 50,000,000 shares authorized as of December 31,

2023 and 2022, respectively
Class A common shares, 700,000 shares issued and outstanding as of December 31, 2023 and

December 31, 2022

Common shares, 27,042,035 and 9,586,683 shares issued and outstanding as of December 31, 2023

and December 31, 2022, respectively

Common stock issuable, 1,492,915 and 368,907 shares as of December 31, 2023 and December 31,

2022, respectively

Additional paid-in capital
Accumulated deficit
Total Stockholders’ Equity (Deficit)
Total Liabilities and Stockholders’ Equity (Deficit)

December 31, 

2023

2022

$

$

$

$

4,928
450

$

—  

$

$

5,378
5,378

15,485
2,815
125
18,425
18,425

—  

3

3,419
297,864
(314,333)
(13,047)
5,378

$

12,068
1,149
73
13,290
13,290

20,297
1,306
11,170
32,773
32,773

—

1

1,885
241,117
(262,486)
(19,483)
13,290

The accompanying notes are an integral part of these financial statements.

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CHECKPOINT THERAPEUTICS, INC.
STATEMENTS OF OPERATIONS
(in thousands, except share and per share amounts)

Table of Contents

Revenue - related party

Operating expenses:

Research and development
General and administrative

Total operating expenses
Loss from operations

Other income (loss):
Interest income
Gain (loss) on common stock warrant liabilities

Total other income (loss)
Net Loss

Loss per Share:
Basic and diluted net loss per common share outstanding

For the year ended December 31, 
2022
2023

$

103

$

192

43,566
8,685
52,251
(52,148)

84
217
301
(51,847)

$

49,825
8,700
58,525
(58,333)

160
(4,451)
(4,291)
(62,624)

(3.17)

$

(7.09)

$

$

Basic and diluted weighted average number of common shares outstanding

18,742,494

8,835,521

The accompanying notes are an integral part of these financial statements.

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CHECKPOINT THERAPEUTICS, INC.
STATEMENTS OF STOCKHOLDERS’ EQUITY (DEFICIT)
(in thousands, except share amounts)

Balances at December 31, 2021

Issuance of common shares, net of offering costs -

At-the-market offering

Stock-based compensation expense
Issuance of common shares, net of offering costs -

Registered direct offering

Issuance of common shares - Founders Agreement
Common shares issuable - Founders Agreement
Net settlement of shares withheld for payment of

employee taxes

Fractional share adjustment
Net loss

Balances at December 31, 2022

Stock-based compensation expense
Issuance of common shares, net of offering costs -

Registered direct offerings

Issuance of common shares - Founders Agreement
Common shares issuable - Founders Agreement
Exercise of prefunded and common stock warrants,

including inducement

Net loss

Balances at December 31, 2023

Class A Common Shares
     Amount

Shares
700,000

$

—  

Common Shares

Shares
7,757,440

     Amount
1

$

Common
Stock

Additional
Paid-in
     Issuable      Capital

Accumulated
Deficit

Total
Stockholders’
Equity
(Deficit)

$ 6,598

$ 223,009

$ (199,862) $

29,746

—  
—  

—
—  
—  

—
—
—  
$
—  

700,000

—  
—  

—
—  
—  

—
—
—  
—  
—  

532,816
143,571

950,000
268,813

—  

(64,856)
(1,101)

—  
$

9,586,683
1,091,098

—  
—  

—  
—  

—
—
—   (6,598)
—   1,885

9,872
2,924

—
7,016

—  

—  
—  

—
—  
—  

—
—
—  
1
—  

—
—
—  

(1,698)
(6)
—  

$ 1,885

$ 241,117
2,897

—  

—
—
(62,624)
$ (262,486) $
—  

—
—  
—  

— 6,957,186
—  
767,567
—  

—  

—
1
—   (1,885)
—   3,419

—  
—  
$

700,000

8,639,501

—  
—  
—   27,042,035

—  
$

1
—  
3

—  
—  

$ 3,419

$ 297,864

30,124
2,837

—  

20,889

—
—  
—  

—  

—  

(51,847)
$ (314,333) $

9,872
2,924

—
418
1,885

(1,698)
(6)
(62,624)
(19,483)
2,897

30,125
952
3,419

20,890
(51,847)
(13,047)

The accompanying notes are an integral part of these financial statements.

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Table of Contents

CHECKPOINT THERAPEUTICS, INC.
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:

Stock-based compensation expense
Issuance of common shares - Founders Agreement
Common shares issuable - Founders Agreement
(Gain) loss on common stock warrant liabilities
Changes in operating assets and liabilities:

Prepaid expenses and other assets
Other receivables - related party
Accounts payable and accrued expenses
Accounts payable and accrued expenses - related party

Net cash used in operating activities

Cash Flows from Financing Activities:

Issuance of common shares - Registered direct offerings
Payment of offering costs for the issuance of common shares - Registered direct offerings
Issuance of common shares - At-the-market offering
Payment of offering costs for the issuance of common shares - At-the-market offering
Net settlement of shares withheld for payment of employee taxes
Payment of Fractional shares
Cash received for exercise of warrants
Payment of transactional costs for exercise of warrants

Net cash provided by financing activities

Net decrease in cash and cash equivalents
Cash and cash equivalents at beginning of period
Cash and cash equivalents at end of period
Supplemental disclosure of noncash investing and financing activities:
Issuance of common shares - Founders Agreement
Issuance of common shares - Registered direct offerings (offering costs incurred but not paid)
Warrant inducement (transactional costs incurred but not paid)

$

$
$
$

The accompanying notes are an integral part of these financial statements.

F-7

For the year ended December 31, 
2022
2023

$

(51,847)

$

(62,624)

2,897
952
3,419
(217)

699
73
(5,075)
1,509
(47,590)

33,621
(3,289)
—
—
—
—
11,134
(1,016)
40,450

(7,140)
12,068
4,928

1,885
207
56

$

$
$
$

2,924
418
1,885
4,451

(173)
(56)
(4,622)
243
(57,554)

7,500
(781)
10,120
(248)
(1,698)
(6)
—
—
14,887

(42,667)
54,735
12,068

6,598
—
—

    
    
   
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
 
 
 
 
 
 
  
 
  
Table of Contents

CHECKPOINT THERAPEUTICS, INC.
Notes to Financial Statements

Note 1 - Organization and Description of Business Operations

Checkpoint  Therapeutics,  Inc.  (the  “Company”  or  “Checkpoint”)  was  incorporated  in  Delaware  on  November  10,  2014.  Checkpoint  is  a  clinical-stage
immunotherapy and targeted oncology company focused on the acquisition, development and commercialization of novel treatments for patients with solid
tumor  cancers.  The  Company  may  acquire  rights  to  these  technologies  by  licensing  the  rights  or  otherwise  acquiring  an  ownership  interest  in  the
technologies, funding their research and development and eventually either out-licensing or bringing the technologies to market.

The Company is a majority-controlled subsidiary of Fortress Biotech, Inc. (“Fortress”).

The Company’s common stock is listed on the NASDAQ Capital Market and trades under the symbol “CKPT.”

December 2022 Reverse Stock Split

On November 3, 2022, the holders of a majority of the voting power of the common stock of the Company executed a written consent approving a grant of
discretionary authority to the board of directors of the Company (the “Board”) to, without further stockholder approval, (i) effect a 1:10 reverse stock split
of the Company’s issued and outstanding common stock (the “Reverse Stock Split”), (ii) effect a change in the number of the Company’s authorized shares
from  13,500,000  to  50,000,000  by  filing  an  amendment  (the  “Certificate  Amendment”)  to  the  Company’s  Amended  and  Restated  Certificate  of
Incorporation with the Secretary of State of the State of Delaware, and (iii) effect an amendment to the Company’s Amended and Restated 2015 Incentive
Plan  to  increase  the  number  of  shares  issuable  thereunder,  after  giving  effect  to  the  Reverse  Stock  Split,  from  900,000  to  3,000,000  (the  “Plan
Amendment”). The Board also approved the Reverse Stock Split, the Certificate Amendment, and the Plan Amendment.

Pursuant to rules adopted by the Securities and Exchange Commission (“SEC”) under the Securities Exchange Act of 1934, a Schedule 14C information
statement was filed with the SEC and provided to the stockholders of the Company. The Reverse Stock Split became effective on December 6, 2022, or
twenty  (20)  days  from  the  mailing  of  the  information  statement  to  the  common  stockholders  of  record.  The Authorized  Share  Reduction  also  became
effective on December 6, 2022 per the Certificate Amendment filed with the Secretary of State of the State of Delaware.

All share and per share information has been retroactively adjusted to give effect to the Reverse Stock Split for all periods presented, unless otherwise
indicated. Proportionate adjustments were made to the per share exercise price and/or the number of shares issuable upon the exercise or vesting of all
stock  options,  restricted  stock  and  warrants  outstanding  at  December  6,  2022,  which  resulted  in  a  proportional  decrease  in  the  number  of  shares  of  the
Company’s common stock reserved for issuance upon exercise or vesting of such stock options, restricted stock and warrants, and, in the case of stock
options and warrants, a proportional increase in the exercise price of all such stock options and warrants.

No fractional shares were issued in connection with the Reverse Stock Split and stockholders who would otherwise be entitled to a fraction of one share
received a proportional cash payment.

Liquidity, Capital Resources and Going Concern

The Company has incurred substantial operating losses since its inception and expects to continue to incur significant operating losses for the foreseeable
future and may never become profitable. As of December 31, 2023, the Company had an accumulated deficit of $314.3 million.

In December 2022, the Company closed on a registered direct offering (the “December 2022 Registered Direct Offering”) for the issuance and sale of an
aggregate of 950,000 shares of our common stock at a purchase price of $4.325 per share. In addition, the offering included 784,105 shares of common
stock in the form of pre - funded warrants at a price of $4.3249. The common stock and the pre - funded warrants were sold together with Series A warrants
to purchase up to 1,734,105 shares of common stock and Series B warrants to purchase up to 1,734,105 shares of common stock. The Series A warrants are
exercisable immediately upon issuance and will expire five years following the issuance date and have an exercise price of $4.075 per share and the Series
B warrants are exercisable immediately upon issuance and will expire eighteen months following the issuance date and have an exercise price of $4.075
per share.

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CHECKPOINT THERAPEUTICS, INC.
Notes to Financial Statements

Total  gross  proceeds  from  the  December  2022  Registered  Direct  Offering  were  $7.5  million  with  net  proceeds  of  approximately  $6.7  million  after
deducting approximately $0.8 million in commissions and other transaction costs.

In February 2023, the Company closed on a registered direct offering (the “February 2023 Registered Direct Offering”) for the issuance and sale of an
aggregate of 1,180,000 shares of its common stock at a purchase price of $5.25 per share in a registered direct offering. In addition, the offering includes
248,572 shares of common stock in the form of pre-funded warrants at a price of $5.2499. In a concurrent private placement, Checkpoint issued and sold
Series A warrants to purchase up to 1,428,572 shares of common stock and Series B warrants to purchase up to 1,428,572 shares of common stock. The
Series A and B warrants are exercisable immediately upon issuance with an exercise price of $5.00 per share. The Series A warrants will expire five years
following the issuance date and the Series B warrants will expire eighteen months following the issuance date. The total gross proceeds from the offering
were approximately $7.5 million with net proceeds of approximately $6.7 million after deducting approximately $0.8 million in commissions and other
transaction costs.

In April 2023, the Company closed on a registered direct offering (the “April 2023 Registered Direct Offering”) for the issuance and sale of an aggregate of
1,700,000  shares  of  its  common  stock  at  a  purchase  price  of  $3.60  per  share  of  common  stock  in  a  registered  direct  offering.  In  a  concurrent  private
placement, Checkpoint issued and sold Series A warrants to purchase up to 1,700,000 shares of common stock and Series B warrants to purchase up to
1,700,000 shares of common stock. The Series A and B warrants are exercisable immediately upon issuance with an exercise price of $3.35 per share. The
Series A warrants will expire five years following the issuance date and the Series B warrants will expire eighteen months following the issuance date. The
total gross proceeds from the offering were approximately $6.1 million with net proceeds of approximately $5.5 million after deducting approximately $0.6
million in commissions and other transaction costs.

In May 2023, the Company closed on a registered direct offering (the “May 2023 Registered Direct Offering”) for the issuance and sale of an aggregate of
1,650,000 shares of its common stock at a purchase price of $3.071 per share of common stock in a registered direct offering. In addition, the offering
includes 1,606,269 shares of common stock in the form of pre-funded warrants at a price of $3.0709. The common stock and the pre-funded warrants were
sold together with Series A warrants to purchase up to 3,256,269 shares of common stock and Series B warrants to purchase up to 3,256,269 shares of
common stock. The Series A and B warrants are exercisable immediately upon issuance with an exercise price of $2.821 per share. The Series A warrants
will  expire  five  years  following  the  issuance  date  and  the  Series  B  warrants  will  expire  eighteen  months  following  the  issuance  date.  The  total  gross
proceeds from the offering were approximately $10.0 million with net proceeds of approximately $9.1 million after deducting approximately $0.9 million
in commissions and other transaction costs.

In July 2023, the Company closed on a registered direct offering (the “July 2023 Registered Direct Offering”) for the issuance and sale of an aggregate of
2,427,186  shares  of  its  common  stock  at  a  purchase  price  of  $3.09  per  share  of  common  stock  in  a  registered  direct  offering.  In  addition,  the  offering
includes 809,062 shares of common stock in the form of pre-funded warrants at a price of $3.0899. The common stock and the pre-funded warrants were
sold together with Series A warrants to purchase up to 3,236,248 shares of common stock and Series B warrants to purchase up to 3,236,248 shares of
common stock. The Series A and B warrants are exercisable immediately upon issuance with an exercise price of $2.84 per share. The Series A warrants
will  expire  five  years  following  the  issuance  date  and  the  Series  B  warrants  will  expire  eighteen  months  following  the  issuance  date.  The  total  gross
proceeds from the offering were approximately $10.0 million with net proceeds of approximately $9.1 million after deducting approximately $0.9 million
in commissions and other transaction costs.

In October 2023, the Company entered into an inducement offer letter agreement (the “October 2023 Inducement”) with a certain holder of its existing
warrants  to  exercise  for  cash  an  aggregate  of  6,325,354  shares  of  the  Company’s  common  stock  at  a  reduced  exercise  price  of  $1.76  per  share.  The
warrants were issued to the holder as part of the December 2022 Registered Direct Offering with an exercise price of $4.075 per share and as part of the
February 2023 Registered Direct Offering with an exercise price of $5.00 per share. As part of the October 2023 Inducement, the Company agreed to issue
new  unregistered  Series A  Warrants  to  purchase  up  to  6,325,354  shares  of  Common  Stock  and  new  unregistered  Series  B  Warrants  to  purchase  up  to
6,325,354  shares  of  Common  Stock  (collectively,  the  “October  2023  Common  Stock  Warrants”).  The  October  2023  Common  Stock  Warrants  are
exercisable immediately upon issuance with an exercise price of $1.51 per share. The Series A warrants will expire five years following the issuance date
and the Series B warrants will expire twenty-four months following the issuance date. The total gross proceeds from the exercise were approximately

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Table of Contents

CHECKPOINT THERAPEUTICS, INC.
Notes to Financial Statements

$11.1 million with net proceeds of approximately $10.0 million after deducting approximately $1.1 million in commissions and other transaction costs.

The Company expects to continue to use the proceeds from previous financing transactions primarily for general corporate purposes, which may include
financing the Company’s growth, developing new or existing product candidates, and funding capital expenditures, acquisitions and investments.

In accordance with Accounting Standards Codification (“ASC”) 205-40, Going Concern, the Company evaluated whether there are conditions and events,
considered in the aggregate, that raise substantial doubt about its ability to continue as a going concern within one year after the date that these financial
statements are issued. This evaluation initially does not take into consideration the potential mitigating effect of management’s plans that have not been
fully implemented as of the date the financial statements are issued. When substantial doubt exists under this methodology, management evaluates whether
the mitigating effect of its plans sufficiently alleviates substantial doubt about the Company’s ability to continue as a going concern. The mitigating effect
of management’s plans, however, is only considered if both (1) it is probable that the plans will be effectively implemented within one year after the date
that the financial statements are issued, and (2) it is probable that the plans, when implemented, will mitigate the relevant conditions or events that raise
substantial doubt about the entity’s ability to continue as a going concern within one year after the date that these consolidated financial statements are
issued. In performing its analysis, management excluded certain elements of its operating plan that cannot be considered probable. Under ASC 205-40, the
future receipt of potential funding from future equity or debt issuances and other potential sources such as partnerships cannot be considered probable at
this  time  because  these  plans  are  not  entirely  within  the  Company’s  control  nor  have  these  plans  been  approved  by  the  Board  as  of  the  date  of  these
financial statements.

The Company believes that its cash and cash equivalents are only sufficient to fund its operating expenses into the third quarter of 2024. The Company has
suffered  recurring  losses  from  operations  and  has  a  net  capital  deficiency  that  raise  substantial  doubt  regarding  the  Company’s  ability  to  continue  as  a
going concern for a period of one year after the date that these financial statements are issued. Management's plans to alleviate the conditions that raise
substantial  doubt  include  reduced  2024  spending,  including  projected  savings  through  delaying  the  development  timelines  of  certain  programs  and  the
pursuit  of  additional  cash  resources  through  public  or  private  equity  or  debt  financings  and  potential  partnerships.  Management  has  concluded  the
likelihood that its plan to successfully obtain sufficient funding from one or more of these sources, or adequately reduce expenditures, while reasonably
possible, is less than probable. Accordingly, the Company has concluded that substantial doubt exists about the Company’s ability to continue as a going
concern for a period of at least 12 months from the date of issuance of these financial statements. The Company’s estimate as to how long it expects its
existing  cash  to  be  able  to  continue  to  fund  its  operations  is  based  on  assumptions  that  may  prove  to  be  wrong,  and  it  could  use  its  available  capital
resources  sooner  than  it  currently  expects.  Further,  changing  circumstances,  some  of  which  may  be  beyond  its  control,  could  cause  the  Company  to
consume capital faster than it currently anticipates, and it may need to seek additional funds sooner than planned. The Company cannot be certain that
additional funding will be available to it on acceptable terms, or at all.

The  accompanying  financial  statements  have  been  prepared  on  a  going  concern  basis,  which  contemplates  the  realization  of  assets  and  satisfaction  of
liabilities in the ordinary course of business. The financial statements do not include any adjustments relating to the recoverability and classification of
recorded asset amounts or the amounts and classification of liabilities that might result from the outcome of the uncertainties described above.

Note 2 - Significant Accounting Policies

Basis of Presentation

The  Company’s  financial  statements  have  been  prepared  in  conformity  with  accounting  principles  generally  accepted  in  the  United  States  of America
(“GAAP”) and include all adjustments necessary for the fair presentation of the Company’s financial position for the periods presented. The Company has
no subsidiaries.

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Table of Contents

Segments

CHECKPOINT THERAPEUTICS, INC.
Notes to Financial Statements

Operating segments are defined as components of an enterprise about which separate discrete information is available for evaluation by the chief operating
decision  maker,  or  decision-making  group,  in  deciding  how  to  allocate  resources  and  in  assessing  performance. The  Company  views  its  operations  and
manages its business in one operating and reporting segment.

Use of Estimates

The  preparation  of  financial  statements  in  conformity  with  GAAP  requires  management  to  make  estimates  and  assumptions  that  affect  the  reported
amounts  of  assets  and  liabilities  and  disclosure  of  contingent  assets  and  liabilities  at  the  date  of  the  financial  statements  and  the  reported  amounts  of
expenses during the reporting period. Actual results could differ from those estimates.

Cash and Cash Equivalents

The Company considers highly liquid investments with an original maturity of three months or less when purchased to be cash equivalents.

Other Receivables - Related Party

Other receivables consist of amounts due to the Company from TG Therapeutics, Inc. (“TGTX”), a related party, and are recorded at the invoiced amount.
Effective September 30, 2023, the Company and TGTX agreed to mutually terminate the collaboration agreements.

Research and Development Costs

Research and development costs are expensed as incurred. Advance payments for goods and services that will be used in future research and development
activities are expensed when the activity has been performed or when the goods have been received rather than when the payment is made. Upfront and
milestone payments due to third parties that perform research and development services on the Company’s behalf will be expensed as services are rendered
or when the milestone is achieved.

Research  and  development  costs  primarily  consist  of  personnel  related  expenses,  including  salaries,  benefits,  travel,  and  other  related  expenses,  stock-
based compensation, payments made to third parties for license and milestone costs related to in-licensed products and technology, payments made to third
party  contract  research  organizations  for  preclinical  and  clinical  studies,  investigative  sites  for  clinical  trials,  consultants,  the  cost  of  acquiring  and
manufacturing clinical trial materials, costs associated with regulatory filings, laboratory costs and other supplies.

In accordance with ASC 730-10-25-1, Research and Development, costs incurred in obtaining technology licenses are charged to research and development
expense  if  the  technology  licensed  has  not  reached  commercial  feasibility  and  has  no  alternative  future  use.  Such  licenses  purchased  by  the  Company
require substantial completion of research and development, regulatory and marketing approval efforts in order to reach commercial feasibility and have no
alternative future use.

Annual Equity Fee

Under  the  Founders  Agreement  with  Checkpoint  dated  March  17,  2015  and  amended  and  restated  in  July  2016  and  October  2017  (the  “Founders
Agreement”),  Fortress  is  entitled  to  an  annual  equity  fee  on  January  1  of  each  year  equal  to  2.5%  of  fully  diluted  outstanding  equity  of  the  Company,
payable in Checkpoint common shares (“Annual Equity Fee”). The Annual Equity Fee was part of the consideration payable for formation of the Company,
identification of certain assets, including the license contributed to Checkpoint by Fortress (see Note 4).

The  Company  records  the  Annual  Equity  Fee  in  connection  with  the  Founders  Agreement  with  Fortress  as  contingent  consideration.  Contingent
consideration  is  recorded  when  probable  and  reasonably  estimable.  Due  to  the  nature  of  the  Company’s  assets  and  stage  of  development,  future  share
prices and shares outstanding cannot be estimated prior to the issuance of the Annual Equity Fee. Due to these

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Table of Contents

CHECKPOINT THERAPEUTICS, INC.
Notes to Financial Statements

uncertainties, the Company has concluded that it is unable to reasonably estimate the contingent consideration until shares are actually issued on January 1
of each year.

Pursuant to the Founders Agreement, the Company issued 368,907 shares of common stock to Fortress for the Annual Equity Fee, representing 2.5% of the
fully diluted outstanding equity of Checkpoint on January 1, 2023. Because the number of outstanding shares issuable to Fortress was determinable on
January 1, 2023 prior to the issuance of the December 31, 2022 financial statements, the Company recorded approximately $1.9 million in research and
development expense and a credit to Common shares issuable - Founders Agreement during the year ended December 31, 2022.

Pursuant to the Founders Agreement, the Company will issue 1,492,915 shares of common stock to Fortress for the Annual Equity Fee, representing 2.5%
of  the  fully  diluted  outstanding  equity  of  Checkpoint  on  January  1,  2024.  The  Company  did  not  have  enough  unreserved  authorized  shares  under  its
certificate  of  incorporation  on  January  1,  2024  to  issue  the  shares  for  the Annual  Equity  Fee.  Therefore,  in  December  2023,  Fortress  and  Checkpoint
mutually agreed to defer the issuance until such time as certificate of incorporation has been amended in order to increase the number of authorized that
may be issued thereunder. Because the number of outstanding shares issuable to Fortress was determinable on January 1, 2024 prior to the issuance of the
December 31, 2023 financial statements, the Company recorded approximately $3.4 million in research and development expense and a credit to Common
shares issuable - Founders Agreement during the year ended December 31, 2023.

Stock-Based Compensation Expenses

The  Company  expenses  stock-based  compensation  over  the  requisite  service  period  based  on  the  estimated  grant-date  fair  value  of  the  awards  and
forfeiture rates. The Company accounts for forfeitures as they occur.

The Company estimates the fair value of stock option grants using the Black-Scholes Model. The assumptions used in calculating the fair value of stock-
based awards represent management’s best estimates and involve inherent uncertainties and the application of management’s judgment. All stock-based
compensation costs are recorded in general and administrative or research and development costs in the Statements of Operations based upon the
underlying individual’s role at the Company.

In addition, because some of the restricted stock, restricted stock units and options issued to employees, directors and consultants vest upon achievement of
certain milestones, the total expense is uncertain. Compensation expense for such awards that vest upon the achievement of milestones is recognized when
the achievement of such milestones is probable.

Common Stock Warrant Liability

The Company has issued freestanding warrants to purchase shares of its common stock in connection with its financing activities and accounts for them in
accordance with applicable accounting guidance as either liabilities or as equity instruments depending on the specific terms of the warrant agreements.
Warrants classified as liabilities are remeasured each period they are outstanding. Any resulting gain or loss related to the change in the fair value of the
warrant liability is recognized in gain (loss) on common stock warrant liabilities, a component of other income (loss), in the Statements of Operations.

The Company estimates the fair value of common stock warrant liabilities using the Black-Scholes Model. The assumptions used in calculating the fair
value represent management’s best estimates and involve inherent uncertainties and the application of management’s judgment.

Fair Value Measurement

The Company follows the accounting guidance in ASC 820 for its fair value measurements of financial assets and liabilities measured at fair value on a
recurring basis. Under this accounting guidance, fair value is defined as an exit price, representing the amount that would be received to sell an asset or
paid  to  transfer  a  liability  in  an  orderly  transaction  between  market  participants  at  the  measurement  date.  As  such,  fair  value  is  a  market-based
measurement that should be determined based on assumptions that market participants would use in pricing an asset or a liability.

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CHECKPOINT THERAPEUTICS, INC.
Notes to Financial Statements

The accounting guidance requires fair value measurements be classified and disclosed in one of the following three categories:

Level 1: Quoted prices in active markets for identical assets or liabilities.
Level 2: Observable inputs other than Level 1 prices, for similar assets or liabilities that are directly or indirectly observable in the marketplace.
Level 3: Unobservable  inputs  which  are  supported  by  little  or  no  market  activity  and  that  are  financial  instruments  whose  values  are  determined
using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair
value requires significant judgment or estimation.

The fair value hierarchy also requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair
value. Assets  and  liabilities  measured  at  fair  value  are  classified  in  their  entirety  based  on  the  lowest  level  of  input  that  is  significant  to  the  fair  value
measurement.

Certain of the Company’s financial instruments are not measured at fair value on a recurring basis but are recorded at amounts that approximate their fair
value due to their liquid or short-term nature, such as accounts payable and accrued expenses.

Revenue from Contracts with Customers

The  Company  recognizes  revenue  under ASC  606,  Revenue  from  Contracts  with  Customers. The  core  principle  of ASC  606  is  that  a  company  should
recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the company
expects to be entitled in exchange for those goods or services. The following five steps are applied to achieve that core principle:

● Step 1: Identify the contract with the customer
● Step 2: Identify the performance obligations in the contract
● Step 3: Determine the transaction price
● Step 4: Allocate the transaction price to the performance obligations in the contract
● Step 5: Recognize revenue when the company satisfies a performance obligation

In order to identify the performance obligations in a contract with a customer, a company must assess the promised goods or services in the contract and
identify each promised good or service that is distinct. A performance obligation meets ASC 606’s definition of a “distinct” good or service (or bundle of
goods or services) if both of the following criteria are met:

● the customer can benefit from the good or service either on its own or together with other resources that are readily available to the customer (i.e.,

the good or service is capable of being distinct).

● the entity’s promise to transfer the good or service to the customer is separately identifiable from other promises in the contract (i.e., the promise

to transfer the good or service is distinct within the context of the contract).

If a good or service is not distinct, the good or service is combined with other promised goods or services until a bundle of goods or services is identified
that is distinct.

The transaction price is the amount of consideration to which an entity expects to be entitled in exchange for transferring promised goods or services to a
customer, excluding amounts collected on behalf of third parties (for example, some sales taxes). The consideration promised in a contract with a customer
may include fixed amounts, variable amounts, or both. When determining the transaction price, an entity must consider the effects of all of the following:

● variable consideration;
● constraining estimates of variable consideration;
● the existence of a significant financing component in the contract;
● noncash consideration; and
● consideration payable to a customer

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CHECKPOINT THERAPEUTICS, INC.
Notes to Financial Statements

Variable  consideration  is  included  in  the  transaction  price  only  to  the  extent  that  it  is  probable  that  a  significant  reversal  in  the  amount  of  cumulative
revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved.

The  transaction  price  is  allocated  to  each  performance  obligation  on  a  relative  standalone  selling  price  basis.  The  transaction  price  allocated  to  each
performance obligation is recognized when that performance obligation is satisfied, at a point in time or over time as appropriate.

Revenue for a sales-based or usage-based royalty promised in exchange for a license of intellectual property is recognized only when (or as) the later of the
following events occurs:

a.
b.

the subsequent sale or usage occurs; and
the  performance  obligation  to  which  some  or  all  of  the  sales-based  or  usage-based  royalty  has  been  allocated  has  been  satisfied  (or  partially
satisfied).

Incremental  contract  costs  are  expensed  when  incurred  when  the  amortization  period  of  the  asset  that  would  have  been  recognized  is  one  year  or  less;
otherwise, incremental contract costs are recognized as an asset and amortized over time as services are provided to a customer.

Income Taxes

The Company records income taxes using the asset and liability method. Deferred income tax assets and liabilities are recognized for the future tax effects
attributable  to  temporary  differences  between  the  financial  statement  carrying  amounts  of  existing  assets  and  liabilities  and  their  respective  income  tax
bases, and operating loss and tax credit carryforwards. The Company establishes a valuation allowance if management believes it is more likely than not
that the deferred tax assets will not be recovered based on an evaluation of objective verifiable evidence. For tax positions that are more likely than not to
be sustained upon audit, the Company recognizes the largest amount with a greater than 50% likely of being realized. The Company does not recognize
any portion of the benefit for tax positions that are not more likely than not to be sustained upon audit. As of December 31, 2023 and December 31, 2022,
the Company determined, based upon available evidence, that it is more likely than not that the net deferred tax asset will not be realized and, accordingly,
has provided a full valuation allowance against its net deferred tax asset.

Net Loss per Share

Net loss per share is computed by dividing net loss by the weighted average number of common shares outstanding during the period. Net loss attributable
to common stockholders consisted of net loss, as adjusted for deemed dividends. The Company recorded a deemed dividend for the modification of certain
of its existing warrants and issuance of the October 2023 Common Stock Warrants of $7.5 million during the year ended December 31, 2023 (see Notes 1
and 6). Diluted net loss per share does not reflect the effect of shares of common stock to be issued upon the exercise of stock options and warrants, as their
inclusion  would  be  anti-dilutive.  The  following  table  summarizes  potentially  dilutive  securities  outstanding  at  December  31,  2023  and  2022  that  were
excluded from the computation of diluted net loss per share, as they would be anti-dilutive:

Warrants (Note 6)
Stock options (Note 6)
Unvested restricted stock awards (Note 6)
Unvested restricted stock units (Note 6)
Total

December 31, 

2023
30,097,671
127,000
1,316,120
615,884
32,156,675

2022
3,573,492
27,000
378,897
85,000
4,064,389

The unexercised pre-funded warrants from the December 2022 Registered Direct Offering were included in the December 31, 2022 computation of diluted
net loss per share since the exercise price was $0.0001. The 1,134,000 shares held in abeyance from the

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CHECKPOINT THERAPEUTICS, INC.
Notes to Financial Statements

October 2023 Inducement (see Note 6) as of December 31, 2023 were included in the December 31, 2023 computation of diluted net loss per share since
no additional consideration is due upon issuance of the shares.

Comprehensive Loss

The Company has no components of comprehensive loss other than net loss. Thus, comprehensive loss is the same as net loss for the periods presented.

Recent Accounting Standards

In  October  2023,  the  Financial  Accounting  Standards  Board  (“FASB”)  issued  Accounting  Standard  Update  (“ASU”)  No.  2023-06,  Disclosure
Improvements:  Codification  Amendments  in  Response  to  the  SEC’s  Disclosure  Updated  and  Simplification  Initiative,  which  amends  the  disclosure  or
presentation requirements related to various subtopics in the FASB Accounting Standards Codification. ASU 2023-06 was issued in response to the SEC’s
August 2018 final rule that updated and simplified disclosure requirements and is intended to align U.S. GAAP requirements with those of the SEC and to
facilitate the application of U.S. GAAP for all entities. For entities subject to the SEC’s existing disclosure requirements and for entities required to file or
furnish  financial  statements  with  or  to  the  SEC  in  preparation  for  the  sale  of  or  for  purposes  of  issuing  securities  that  are  not  subject  to  contractual
restrictions on transfer, the effective date for each amendment will be the date on which the SEC removes that related disclosure from its rules. However, if
by June 30, 2027, the SEC has not removed the related disclosure from its regulations, the amendments will be removed from the Codification and not
become effective for any entity. The Company is currently evaluating the impact of the new standard on its disclosures.

In November 2023, the FASB issued ASU No. 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which amends
ASC 280, Segment Reporting to require public entities to disclose significant segment expenses and other segment items that are regularly provided to the
chief operating decision maker (“CODM”) and included in each reported measure of a reportable segment’s profit or loss, on an annual and interim basis,
and provide in interim periods all disclosures about a reportable segment’s profit or loss and assets that are currently required annually. The ASU permits
entities to report multiple measures of a reportable segment’s profit or loss if the CODM uses those measures to allocate resources and assess performance.
The guidance is required to be applied retrospectively to all periods presented in the financial statements, unless impracticable. The guidance is effective
for  fiscal  years  beginning  after  December  15,  2023,  and  interim  periods  within  fiscal  years  beginning  after  December  15,  2024.  Early  adoption  is  also
permitted. Although  the  guidance  only  requires  additional  disclosures,  the  Company  is  in  the  process  of  determining  the  impact  of  this  guidance  to  its
segment disclosures.

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which will require public entities
to  disclose  on  an  annual  basis  a  tabular  reconciliation  using  both  percentages  and  amounts,  broken  out  into  specific  categories  with  certain  reconciling
items at or above 5% of the statutory (i.e. expected) tax further broken out by nature and/or jurisdiction. The ASU requires all entities to disclose on an
annual basis the amount of income taxes paid (net of refunds received), disaggregated between federal (national), state/local and foreign, and amounts paid
to an individual jurisdiction when 5% or more of the total income taxes paid. The guidance is required to be applied on a prospective basis; retrospective
application  is  permitted.  The  guidance  is  effective  for  annual  periods  beginning  after  December  15,  2024.  Early  adoption  is  permitted.  Although  the
guidance only requires additional disclosures, the Company is in the process of determining the impact of this guidance to its income tax disclosures.

Note 3 - License Agreements

Dana-Farber Cancer Institute

In March 2015, the Company entered into an exclusive license agreement with Dana-Farber Cancer Institute (“Dana Farber”) to develop a portfolio of fully
human  immuno-oncology  targeted  antibodies  targeting  PD-L1,  Glucocorticoid-induced  TNFR-related  protein  (“GITR”)  and  Carbonic  anhydrase  IX
(“CAIX”).  Under  the  terms  of  the  license  agreement,  the  Company  paid  Dana-Farber  an  up-front  licensing  fee  of  $1.0  million  and,  on  May  11,  2015,
granted Dana-Farber 50,000 shares, valued at $32,500 or $0.65 per share. The license agreement included an anti-dilution clause that maintained Dana-
Farber’s  ownership  at  5%  until  such  time  that  the  Company  raised  $10  million  in  cash  in  exchange  for  common  shares.  Pursuant  to  this  provision,  on
September 30, 2015, the Company granted to Dana-Farber an additional 13,683 shares of common stock valued at approximately $0.6 million and the anti-
dilution clause thereafter

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CHECKPOINT THERAPEUTICS, INC.
Notes to Financial Statements

expired. Dana-Farber is eligible to receive payments of up to an aggregate of approximately $21.5 million for each licensed product upon the Company’s
successful achievement of certain clinical development, regulatory and first commercial sale milestones. As of December 31, 2023, $5.0 million of these
milestones have been expensed for the antibody targeting PD-L1. In addition, Dana-Farber is eligible to receive up to an aggregate of $60.0 million upon
the Company’s successful achievement of certain sales milestones based on aggregate net sales, in addition to royalty payments based on a tiered low to
mid-single  digit  percentage  of  net  sales.  Dana-Farber  also  receives  an  annual  license  maintenance  fee  of  $50,000,  which  is  creditable  against  future
milestone payments or royalties.

In connection with the license agreement with Dana-Farber, in March 2015 the Company entered into a collaboration agreement with TGTX, which was
amended and restated in June 2019, to develop and commercialize the anti-PD-L1 and anti-GITR antibody research programs in the field of hematological
malignancies. The Company retained the right to develop and commercialize these antibodies in solid tumors. Michael Weiss, Chairman of the Board of
Directors of Checkpoint and Fortress’ Executive Vice Chairman, Strategic Development, is also the Executive Chairman, President and Chief Executive
Officer and a stockholder of TGTX. Effective September 30, 2023, the Company and TGTX agreed to mutually terminate the collaboration agreement. For
the  years  ended  December  31,  2023  and  2022,  the  Company  recognized  approximately  $58,000  and  $121,000  respectively,  in  revenue  from  our
collaboration agreement with TGTX in the Statements of Operations.

Adimab, LLC

In  October  2015,  Fortress  entered  into  a  collaboration  agreement  with  Adimab,  LLC  (“Adimab”)  to  discover  and  optimize  antibodies  using  their
proprietary  core  technology  platform.  Under  this  agreement,  Adimab  optimized  cosibelimab,  the  Company’s  anti-PD-L1  antibody  which  it  originally
licensed  from  Dana-Farber.  In  January  2019,  Fortress  transferred  the  rights  to  the  optimized  antibody  to  the  Company,  and  Checkpoint  entered  into  a
collaboration agreement directly with Adimab on the same day. Under the terms of the agreement, Adimab is eligible to receive additional payments from
the Company up to an aggregate of approximately $2.5 million upon various filings for regulatory approvals to commercialize the product. In addition,
Adimab is eligible to receive royalty payments from the Company based on a tiered low single digit percentage of net sales.

In  February  2023,  the  Company  expensed  a  non-refundable  milestone  payment  of  $2.2  million  to  research  and  development  expenses  upon  the  United
States Food and Drug Administration’s filing acceptance of the Company’s Biologics License Application for cosibelimab.

NeuPharma, Inc.

In  March  2015,  Fortress  entered  into  an  exclusive  license  agreement  with  NeuPharma,  Inc.  (“NeuPharma”)  to  develop  and  commercialize  novel
irreversible,  3rd  generation  EGFR  inhibitors,  including  olafertinib,  on  a  worldwide  basis  other  than  certain Asian  countries.  On  the  same  date,  Fortress
assigned all of its right and interest in the EGFR inhibitors to the Company. Under the terms of the license agreement, the Company paid NeuPharma an
up-front licensing fee of $1.0 million, and NeuPharma is eligible to receive additional payments of up to an aggregate of approximately $39.0 million upon
the Company’s successful achievement of certain clinical development and regulatory milestones covering up to three indications, of which $22.5 million
are due upon various regulatory approvals to commercialize the products. In addition, NeuPharma is eligible to receive payments of up to an aggregate of
$40.0 million upon the Company’s successful achievement of certain sales milestones based on aggregate net sales across all indications, in addition to
royalty payments based on a tiered mid to high-single digit percentage of net sales.

Jubilant Biosys Limited

In  May  2016,  the  Company  entered  into  a  license  agreement  with  Jubilant  Biosys  Limited  (“Jubilant”),  whereby  the  Company  obtained  an  exclusive,
worldwide license to Jubilant’s family of patents covering compounds that inhibit BET proteins such as BRD4, including CK-103. Under the terms of the
license agreement, the Company paid Jubilant an up-front licensing fee of $2.0 million, and Jubilant is eligible to receive payments up to an aggregate of
approximately  $88.4  million  upon  the  Company’s  successful  achievement  of  certain  clinical  development  and  regulatory  milestones,  of  which  $59.5
million are due upon various regulatory approvals to commercialize the products. In addition, Jubilant is eligible to receive payments up to an aggregate of
$89.3 million upon the Company’s successful achievement of certain sales milestones based on aggregate net sales, in addition to royalty payments based
on a tiered low to mid-single digit percentage of net sales.

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CHECKPOINT THERAPEUTICS, INC.
Notes to Financial Statements

In  connection  with  the  license  agreement  with  Jubilant,  the  Company  entered  into  a  sublicense  agreement  with TGTX,  a  related  party,  to  develop  and
commercialize the compounds licensed in the field of hematological malignancies, while the Company retained the right to develop and commercialize
these  compounds  in  the  field  of  solid  tumors.  Effective  September  30,  2023,  the  Company  and  TGTX  agreed  to  mutually  terminate  the  sublicense
agreement.  For  the  years  ended  December  31,  2023  and  2022,  the  Company  recognized  approximately  $46,000  and  $70,000,  respectively,  in  revenue
related to the sublicense agreement in the Statements of Operations.

The  collaborations  with  TGTX  each  contained  single  material  performance  obligations  under  Topic  606,  which  was  the  granting  of  a  license  that  is
functional intellectual property. The Company’s performance obligations were satisfied at the point in time when TGTX had the ability to use and benefit
from the right to use the intellectual property. The performance obligations of the original agreements were satisfied prior to the adoption of Topic 606. The
performance obligation of the amendment to the collaboration agreement was satisfied in June 2019.

Note 4 - Related Party Agreements

Founders Agreement and Management Services Agreement with Fortress

Effective  March  17,  2015,  the  Company  entered  into  a  Founders Agreement  with  Fortress,  which  was  amended  in  July  2016  and  October  2017.  The
Founders Agreement provides, that in exchange for the time and capital expended in the formation of Checkpoint and the identification of specific assets
the acquisition of which resulted in the formation of a viable emerging growth life science company, the Company shall: (i) issue annually to Fortress, on
January 1 of each year, shares of common stock equal to two and one-half percent (2.5)% of the fully diluted outstanding equity of Checkpoint at the time
of  issuance;  (ii)  pay  an  equity  fee  in  shares  of  common  stock,  payable  within  five  (5)  business  days  of  the  closing  of  any  equity  or  debt  financing  for
Checkpoint or any of its respective subsidiaries that occurs after the effective date of the Founders Agreement and ending on the date when Fortress no
longer has majority voting control in Checkpoint’s voting equity, equal to two and one-half percent (2.5)% of the gross amount of any such equity or debt
financing; and (iii) pay a cash fee equal to four and one half percent (4.5)% of Checkpoint’s annual net sales, payable on an annual basis, within ninety
(90) days of the end of each calendar year. In the event of a change in control (as it is defined in the Founders Agreement), Checkpoint will pay a one-time
change in control fee equal to five times (5x) the product of (i) monthly net sales for the twelve (12) months immediately preceding the change in control
and (ii) four and one-half percent (4.5)%. The Founders Agreement has a term of fifteen years, after which it automatically renews for one-year periods
unless Fortress gives the Company notice of termination. The Founders Agreement will also automatically terminate upon a change of control.

Effective March 17, 2015, the Company entered into a Management Services Agreement (the “MSA”) with Fortress. Pursuant to the terms of the MSA, for
a period of five (5) years, Fortress will render advisory and consulting services to the Company. Services provided under the MSA may include, without
limitation, (i) advice and assistance concerning any and all aspects of Checkpoint’s operations, clinical trials, financial planning and strategic transactions
and financings and (ii) conducting relations on behalf of the Company with accountants, attorneys, financial advisors and other professionals (collectively,
the  “Services”). The  Company  is  obligated  to  utilize  clinical  research  services,  medical  education,  communication  and  marketing  services  and  investor
relations/public relation services of companies or individuals designated by Fortress, provided those services are offered at market prices. However, the
Company  is  not  obligated  to  take  or  act  upon  any  advice  rendered  from  Fortress  and  Fortress  shall  not  be  liable  for  any  of  the  Company’s  actions  or
inactions  based  upon  their  advice.  Fortress  and  its  affiliates,  including  all  members  of  its  Board  of  Directors,  have  been  contractually  exempt  from
fiduciary duties to the Company relating to corporate opportunities. In consideration for the Services, the Company will pay Fortress an annual consulting
fee of $0.5 million (the “Annual Consulting Fee”), payable in advance in equal quarterly installments on the first business day of each calendar quarter in
each year, provided, however, that such Annual Consulting Fee shall be increased to $1.0 million for each calendar year in which the Company has net
assets in excess of $100 million at the beginning of the calendar year. The MSA shall be automatically extended for additional five-year periods unless
Fortress or the Company provides notice to the other party of its desire not to automatically extend the term. For the years ended December 31, 2023 and
2022, the Company recognized $0.5 million in expense in its Statements of Operations related to the MSA.

Caribe BioAdvisors, LLC

In  December  2016,  the  Company  entered  into  an  advisory  agreement  effective  January  1,  2017  with  Caribe  BioAdvisors,  LLC  (“Caribe”),  owned  by
Michael Weiss, to provide the advisory services of Mr. Weiss as Chairman of the Board. Pursuant to the

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CHECKPOINT THERAPEUTICS, INC.
Notes to Financial Statements

agreement, Caribe will be paid an annual cash fee of $60,000, in addition to any and all annual equity incentive grants paid to members of the board. In
June 2023, Mr. Weiss assigned the agreement to Hawkins BioVentures, LLC. For each of the years ended December 31, 2023 and 2022, the Company
recognized approximately $110,000 in expenses in its Statements of Operations related to the advisory agreement, including $50,000 in expenses related to
annual equity incentive grants.

Note 5 - Commitments and Contingencies

Leases

The Company is not a party to any leases for office space or equipment.

License Agreements

The  Company  has  undertaken  to  make  contingent  milestone  payments  to  the  licensors  of  its  portfolio  of  product  candidates.  In  addition,  the  Company
would pay royalties to such licensors based on a percentage of net sales of each product candidate following regulatory marketing approval (See Note 3).

Litigation

The Company recognizes a liability for a contingency when it is probable that liability has been incurred and when the amount of loss can be reasonably
estimated.  When  a  range  of  probable  loss  can  be  estimated,  the  Company  accrues  the  most  likely  amount  of  such  loss,  and  if  such  amount  is  not
determinable, then the Company accrues the minimum of the range of probable loss. As of December 31, 2023 and 2022, there was no litigation against the
Company.

Note 6 - Stockholders’ Equity

Common Stock

At the Company’s 2023 Annual Meeting of Stockholders held on June 12, 2023, its stockholders approved an amendment to its certificate of incorporation
to increase the number of authorized shares of common stock available to issue by 30,000,000 to 80,000,000 with a par value of $0.0001 per share, of
which 700,000 shares are designated as “Class A common stock.” The amendment was filed with the Secretary of State of the State of Delaware on June
14, 2023.

As  of  December  31,  2023  and  2022,  there  were  700,000  shares  of  Class  A  common  stock  issued  and  outstanding  to  Fortress.  Dividends  are  to  be
distributed pro-rata to the Class A and common stockholders. The holders of common stock are entitled to one vote per share of common stock held. The
Class A common stockholders are entitled to a number of votes per share equal to 1.1 times a fraction, the numerator of which is the sum of the shares of
outstanding common stock and the denominator of which is the number of shares of Class A common stock. Accordingly, the holder of shares of Class A
common stock will be able to control or significantly influence all matters requiring approval by our stockholders, including the election of directors and
the approval of mergers or other business combination transactions. Each share of Class A common stock is convertible, at the option of the holder thereof,
into one (1) fully paid and non-assessable share of common stock subject to adjustment for stock splits and combinations.

At the Market Issuance Sales Agreement

In  November  2020,  the  Company  filed  a  shelf  registration  statement  on  Form  S-3  (the  “November  2020  S-3”),  which  was  declared  effective  in
December 2020 (File No. 333-251005). Under the S-3, the Company may sell up to a total of $100 million of its securities. In connection with the S-3, the
Company entered into an At-the-Market Issuance Sales Agreement (the “ATM”) with Cantor Fitzgerald & Co., Ladenburg Thalmann & Co. Inc. and H.C.
Wainwright & Co., LLC (each an “Agent” and collectively, the “Agents”) relating to the sale of shares of common stock. Under the ATM, the Company
pays the Agents a commission rate of up to 3.0% of the gross proceeds from the sale of any shares of common stock.

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CHECKPOINT THERAPEUTICS, INC.
Notes to Financial Statements

During the year ended December 31, 2022, the Company sold a total of 532,816 shares of common stock under the ATM for aggregate total gross proceeds
of  approximately  $10.1  million  at  an  average  selling  price  of  $18.99  per  share,  resulting  in  net  proceeds  of  approximately  $9.9  million  after  deducting
commissions and other transaction costs.

Registered Direct Offerings

In December 2022, the Company closed on the December 2022 Registered Direct Offering for the issuance and sale of an aggregate of 950,000 shares of
its common stock at a purchase price of $4.325 per share of common stock. In addition, the offering includes 784,105 shares of common stock in the form
of pre-funded warrants at a price of $4.33249. The pre-funded warrants were funded in full at closing except for a nominal exercise price of $0.0001 and
are exercisable commencing on the closing date and will terminate when such pre-funded warrants are exercised in full. The common stock and the pre-
funded warrants were sold together with Series A warrants to purchase up to 1,734,105 shares of common stock and Series B warrants to purchase up to
1,734,105  shares  of  common  stock  (collectively,  the  “December  2022  Common  Stock  Warrants”).  The  Series  A  and  B  warrants  are  exercisable
immediately upon issuance with an exercise price of $4.075 per share. The Series A warrants will expire five years following the issuance date and the
Series  B  warrants  will  expire  eighteen  months  following  the  issuance  date.  The  Company  also  issued  the  placement  agent  warrants  to  purchase  up  to
104,046 shares of common stock with an exercise price of $5.406 per share (the “December 2022 Placement Agent Warrants”). Total gross proceeds from
the  December  2022  Registered  Direct  Offering  were  $7.5  million  with  net  proceeds  of  approximately  $6.7  million  after  deducting  approximately  $0.8
million  in  commissions  and  other  transaction  costs.  The  shares  of  common  stock  and  the  shares  underlying  the  prefunded  warrants,  December  2022
Common Stock Warrants, and December 2022 Placement Agent Warrants were registered for sale under the November 2020 S-3. In January 2023, the pre-
funded warrants from the December 2022 Registered Direct Offering were fully exercised. The December 2022 Common Stock Warrants and December
2022 Placement Agent Warrants met the criteria for liability classification (See Note 7).

In February 2023, the Company closed on the February 2023 Registered Direct Offering for the issuance and sale of an aggregate of 1,180,000 shares of its
common stock at a purchase price of $5.25 per share of common stock. In addition, the offering includes 248,572 shares of common stock in the form of
pre-funded warrants at a price of $5.2499. The pre-funded warrants were funded in full at closing except for a nominal exercise price of $0.0001 and are
exercisable commencing on the closing date and will terminate when such pre-funded warrants are exercised in full. In a concurrent private placement,
Checkpoint  issued  and  sold  Series A  warrants  to  purchase  up  to  1,428,572  shares  of  common  stock  and  Series  B  warrants  to  purchase  up  to  1,428,572
shares  of  common  stock  (collectively,  the  “February  2023  Common  Stock  Warrants”).  The  Series A  and  B  warrants  are  exercisable  immediately  upon
issuance with an exercise price of $5.00 per share. The Series A warrants will expire five years following the issuance date and the Series B warrants will
expire eighteen months following the issuance date. The Company also issued the placement agent warrants to purchase up to 85,714 shares of common
stock with an exercise price of $6.5625 per share. The total gross proceeds from the February 2023 Registered Direct Offering were approximately $7.5
million with net proceeds of approximately $6.7 million after deducting approximately $0.8 million in commissions and other transaction costs. The shares
of common stock and the shares underlying the prefunded warrants were registered for sale under the November 2020 S-3. In March 2023, the Company
filed  a  registration  statement  on  Form  S-3  to  register  the  February  2023  Common  Stock  Warrants  and  placement  agent  warrants,  which  was  declared
effective May 5, 2023 (File No. 333-270474). In February 2023, the pre-funded warrants from the February 2023 Registered Direct Offering were fully
exercised. The February 2023 Common Stock Warrants and placement agent warrants met the criteria for equity classification.

In April  2023,  the  Company  closed  on  the April  2023  Registered  Direct  Offering  for  the  issuance  and  sale  of  an  aggregate  of  1,700,000  shares  of  its
common stock at a purchase price of $3.60 per share of common stock. In a concurrent private placement, Checkpoint issued and sold Series A warrants to
purchase up to 1,700,000 shares of common stock and Series B warrants to purchase up to 1,700,000 shares of common stock (collectively, the “April 2023
Common Stock Warrants”). The Series A and B warrants are exercisable immediately upon issuance with an exercise price of $3.35 per share. The Series A
warrants  will  expire  five  years  following  the  issuance  date  and  the  Series  B  warrants  will  expire  eighteen  months  following  the  issuance  date.  The
Company also issued the placement agent warrants to purchase up to 102,000 shares of common stock with an exercise price of $4.50 per share. The total
gross  proceeds  from  the April  2023  Registered  Direct  Offering  were  approximately  $6.1  million  with  net  proceeds  of  approximately  $5.5  million  after
deducting  approximately  $0.6  million  in  commissions  and  other  transaction  costs.  The  shares  of  common  stock  were  registered  for  sale  under  the
November  2020  S-3.  In April  2023,  the  Company  filed  a  registration  statement  on  Form  S-3  to  register  the April  2023  Common  Stock  Warrants  and
placement agent warrants, which was declared effective May 5, 2023 (File No. 333-271171). The April 2023 Common Stock Warrants and placement agent
warrants met the criteria for equity classification.

F-19

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CHECKPOINT THERAPEUTICS, INC.
Notes to Financial Statements

The November 2020 Form S-3 expired in December 2023.

In March 2023, the Company filed a shelf registration statement on Form S-3 (the “March 2023 S-3”), which was declared effective May 5, 2023 (File No.
333-270843). Under the March 2023 S-3, the Company may sell up to a total of $150 million of its securities.

In  May  2023,  the  Company  closed  on  the  May  2023  Registered  Direct  Offering  for  the  issuance  and  sale  of  an  aggregate  of  1,650,000  shares  of  its
common stock at a purchase price of $3.071 per share of common stock. In addition, the offering includes 1,606,269 shares of common stock in the form
of pre-funded warrants at a price of $3.0709. The pre-funded warrants were funded in full at closing except for a nominal exercise price of $0.0001 and are
exercisable commencing on the closing date and will terminate when such pre-funded warrants are exercised in full. The common stock and the pre-funded
warrants were sold together with Series A warrants to purchase up to 3,256,269 shares of common stock and Series B warrants to purchase up to 3,256,269
shares of common stock (collectively, the “May 2023 Common Stock Warrants”). The Series A and B warrants are exercisable immediately upon issuance
with an exercise price of $2.821 per share. The Series A warrants will expire five years following the issuance date and the Series B warrants will expire
eighteen months following the issuance date. The Company also issued the placement agent warrants to purchase up to 195,376 shares of common stock
with an exercise price of $3.8388 per share. The total gross proceeds from the May 2023 Registered Direct Offering were approximately $10.0 million with
net proceeds of approximately $9.1 million after deducting approximately $0.9 million in commissions and other transaction costs. The shares of common
stock and the shares underlying the prefunded warrants, May 2023 Common Stock Warrants, and placement agent warrants were registered for sale under
the  March  2023  S-3.  In  August  2023,  the  pre-funded  warrants  from  the  May  2023  Registered  Direct  Offering  were  fully  exercised.  The  May  2023
Common Stock Warrants and placement agent warrants met the criteria for equity classification.

In July 2023, the Company closed on the July 2023 Registered Direct Offering for the issuance and sale of an aggregate of 2,427,186 shares of its common
stock at a purchase price of $3.09 per share of common stock in a registered direct offering. In addition, the offering includes 809,062 shares of common
stock in the form of pre-funded warrants at a price of $3.0899. The pre-funded warrants were funded in full at closing except for a nominal exercise price
of $0.0001 and are exercisable commencing on the closing date and will terminate when such pre-funded warrants are exercised in full. The common stock
and  the  pre-funded  warrants  were  sold  together  with  Series A  warrants  to  purchase  up  to  3,236,248  shares  of  common  stock  and  Series  B  warrants  to
purchase up to 3,236,248 shares of common stock (collectively, the “July 2023 Common Stock Warrants”). The Series A and B warrants are exercisable
immediately  upon  issuance  with  an  exercise  price  of  $2.84  per  share. The  Series A  warrants  will  expire  five  years  following  the  issuance  date  and  the
Series  B  warrants  will  expire  eighteen  months  following  the  issuance  date.  The  Company  also  issued  the  placement  agent  warrants  to  purchase  up  to
194,175 shares of common stock with an exercise price of $3.8625 per share. The total gross proceeds from the July 2023 Registered Direct Offering were
approximately  $10.0  million  with  net  proceeds  of  approximately  $9.1  million  after  deducting  approximately  $0.9  million  in  commissions  and  other
transaction costs. The shares of common stock and the shares underlying the prefunded warrants, July 2023 Common Stock Warrants, and placement agent
warrants were registered for sale under the March 2023 S-3. In September 2023, the pre-funded warrants from the July 2023 Registered Direct Offering
were fully exercised. The July 2023 Common Stock Warrants and placement agent warrants met the criteria for equity classification.

As of December 31, 2023, approximately $91.7 million of securities remain available for sale under the March 2023 Form S-3.

Warrant Inducement

In October 2023, the Company entered into the October 2023 Inducement with a holder of certain of its existing warrants to exercise for cash an aggregate
of 6,325,354 shares of the Company’s common stock at a reduced exercise price of $1.76 per share. The exercised warrants included the December 2022
Common Stock Warrants with an original exercise price of $4.075 per share and the February Common Stock Warrants with an original exercise price of
$5.00 per share. These warrants were issued as part of the December 2022 Registered Direct Offering and February 2023 Registered Direct Offering. As
part of the October 2023 Inducement, the Company agreed to issue new unregistered Series A Warrants to purchase up to 6,325,354 shares of Common
Stock  and  new  unregistered  Series  B  Warrants  to  purchase  up  to  6,325,354  shares  of  Common  Stock.  The  Series  A  and  B  warrants  are  exercisable
immediately  upon  issuance  with  an  exercise  price  of  $1.51  per  share. The  Series A  warrants  will  expire  five  years  following  the  issuance  date  and  the
Series B warrants will expire twenty-four months following the issuance date. The Company also issued the placement agent warrants to purchase up to
379,521  shares  of  common  stock  with  an  exercise  price  of  $2.20  per  share.  The  total  gross  proceeds  from  the  October  2023  Inducement  were
approximately $11.1 million with net proceeds of approximately $10.0 million after deducting approximately $1.1

F-20

Table of Contents

CHECKPOINT THERAPEUTICS, INC.
Notes to Financial Statements

million in commissions and other transaction costs. In November 2023, the Company filed a registration statement on Form S-3 to register the October
2023 Common Stock Warrants and placement agent warrants, which was declared effective November 24, 2023 (File No. 333-275644). The October 2023
Common Stock Warrants and placement agent warrants met the criteria for equity classification.

The December 2022 Common Stock Warrants, which were liability classified, were revalued on October 4, 2023 using Black-Scholes Model to calculate
the difference in fair value as a result of the change in exercise price. The difference in fair value of $1.2 million was recorded as a loss on common stock
warrant liabilities in the Statements of Operations. The issuance of the October 2023 Common Stock Warrants was also considered as part of the cost of the
inducement  and  were  valued  using  Black-Scholes  Model  and  allocated  between  the  December  2022  Common  Stock  Warrants  and  The  February  2023
Common Stock Warrants on a weighted basis. The approximately $7.7 million allocated to the December 2022 Common Stock Warrants was recorded as
loss on common stock warrant liabilities in the Statements of Operations with a corresponding offset to additional paid-in-capital (see Note 7).

The February 2023 Common Stock Warrants, which were equity classified and treated under ASC 815-40, Derivatives and Hedging - Contracts in Entity’s
Own Equity, were revalued using Black-Scholes Model to calculate the difference in fair value as a result of the change in exercise price. The difference in
fair value of $1.1 million was deemed to be a dividend and recorded to additional paid-in-capital because the Company had an accumulated deficit on the
exercise date. The approximately $6.3 million allocated to the February 2023 Common Stock Warrants from the issuance of the October 2023 Common
Stock  Warrants  was  also  deemed  to  be  a  dividend  and  recorded  to  additional  paid-in-capital  because  the  Company  had  an  accumulated  deficit  on  the
exercise date. As a result, the Company presents a deemed dividend for the modification of the February 2023 Common Stock Warrants and issuance of the
October 2023 Common Stock Warrants of $7.5 and $0 million for the years ended December 31, 2023 and 2022, respectively. The deemed divided was
included in net loss attributable to common stockholders in the calculation of net loss per share in the consolidated statements of operations (see Note 2).

Upon the close of the transaction, the Company issued the holder 110,000 of the 6,325,354 shares of common stock that were issuable upon exercise of the
existing  warrants.  Due  to  the  beneficial  ownership  limitation  provisions  in  the  inducement  offer  letter  agreement,  the  remaining  6,215,354  shares  were
initially  unissued,  and  held  in  abeyance  for  the  benefit  of  the  holder  until  notice  from  the  holder  that  the  shares  may  be  issued  in  compliance  with  the
agreement. As of December 31, 2023, 1,134,000 shares remained in abeyance. These shares were fully issued to the holder in January 2024.

Shares Issued Under the Founders Agreement

Pursuant to the Founders Agreement, the Company issued to Fortress 2.5% of the aggregate number of shares of common stock issued in the offerings and
warrant exercises noted above. Accordingly, the Company issued 398,660 shares and 56,671 shares to Fortress for the years ended December 31, 2023 and
2022, respectively, and recorded expenses of approximately $1.0 million and $0.4 million related to these stock grants, which is included in general and
administrative expenses in the Company’s Statements of Operations for the years ended December 31, 2023 and 2022, respectively.

Pursuant to the Founders Agreement, the Company issued 368,907 shares of common stock to Fortress for the Annual Equity Fee, representing 2.5% of the
fully diluted outstanding equity of the Company on January 1, 2023. Pursuant to the Founders Agreement, the Company will issue 1,492,915 shares of
common stock to Fortress for the Annual Equity Fee, representing 2.5% of the fully diluted outstanding equity of the Company on January 1, 2024. The
Company did not have enough unreserved authorized shares under its certificate of incorporation on January 1, 2024 to issue the shares for the Annual
Equity Fee. Therefore, in December 2023, Fortress and Checkpoint mutually agreed to defer the issuance until such time as the certificate of incorporation
has been amended in order to increase the number of authorized shares that may be issued thereunder (see Notes 2 and 4).

The Company may offer the securities under the S-3 from time to time in response to market conditions or other circumstances if it believes such a plan of
financing is in the best interests of its stockholders.

F-21

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Equity Incentive Plan

CHECKPOINT THERAPEUTICS, INC.
Notes to Financial Statements

The Company has in effect the Amended and Restated 2015 Incentive Plan (“2015 Incentive Plan”). The 2015 Incentive Plan was adopted in March 2015
by our stockholders. Under the 2015 Incentive Plan, the compensation committee of the Company’s board of directors is authorized to grant stock-based
awards to directors, officers, employees and consultants. An amendment to the 2015 Incentive Plan was approved by holders of a majority of the voting
power of the common stock of the Company on November 17, 2023 to increase the shares available for issuance to 6,000,000 shares. The plan expires 10
years from the effective date of the amendment and limits the term of each option to no more than 10 years from the date of grant.

As of December 31, 2023, 3,510,830 shares are available for issuance under the 2015 Incentive Plan.

Restricted Stock Awards

Certain employees, directors and consultants have been awarded restricted stock. The restricted stock vesting consists of milestone and time-based vesting.
The following table summarizes restricted stock award activity for the years ended December 31, 2023 and 2022:

Nonvested at December 31, 2021
Granted
Forfeited
Vested
Nonvested at December 31, 2022
Granted
Forfeited
Vested
Non-vested at December 31, 2023

Number of Shares

Weighted Average
Grant Date Fair
Value

451,266
159,416
(15,850)
(215,935)
378,897
1,103,698
(55,100)
(111,375)
1,316,120

$

$

$

33.48
20.00
30.19
36.63
26.15
2.33
11.34
25.07
6.88

As of December 31, 2023, there was $2.4 million of total unrecognized compensation cost related to non-vested restricted stock, which is expected to be
recognized  over  a  weighted-average  period  of  1.9  years.  This  amount  does  not  include,  as  of  December  31,  2023,  186,733  shares  of  restricted  stock
outstanding which are performance-based and vest upon achievement of certain corporate milestones. The expense is recognized over the vesting period of
the award. Stock-based compensation for milestone awards will be measured and recorded if and when it is probable that the milestone will be achieved.

Restricted Stock Units

Certain employees have been awarded restricted stock units. The following table summarizes restricted stock units activity for the years ended December
31, 2023 and 2022:

Non-vested at December 31, 2021
Granted
Non-vested at December 31, 2022
Granted
Forfeited
Vested
Non-vested at December 31, 2023

F-22

Number of
Shares

     Weighted Average
Grant Date Fair
Value

— $

85,000
85,000
577,384
(4,000)
(42,500)
615,884

$

—
10.50
10.50
2.25
10.50
10.50
2.77

    
    
 
 
 
 
 
 
 
 
 
 
    
 
 
 
 
 
 
 
 
Table of Contents

CHECKPOINT THERAPEUTICS, INC.
Notes to Financial Statements

As of December 31, 2023, all restricted stock units outstanding are performance-based and vest upon achievement of certain corporate milestones. The
expense for milestone awards will be measured and recorded if and when it is probable that the milestone will be achieved.

Stock Options

The following table summarizes stock option award activity for the years ended December 31, 2023 and 2022:

Outstanding as of December 31, 2021
Granted
Forfeited
Outstanding as of December 31, 2022
Granted
Outstanding as of December 31, 2023
Vested and exercisable as of December 31, 2023

Stock Options

Weighted Average
Exercise Price

Weighted Average
Remaining
Contractual Life
(in years)

27,000
4,000
(4,000)
27,000
100,000
127,000
19,500

$

$

$
$

31.35  
14.20  
14.20
31.35  
2.81  
8.88
24.68  

7.44

6.44

8.60
6.04

Upon the exercise of stock options, the Company will issue new shares of its common stock.

The  Company  used  the  Black-Scholes  Model  for  determining  the  estimated  fair  value  of  stock-based  compensation  related  to  stock  options.  The  table
below summarizes the assumptions used:

Risk-free interest rate
Expected dividend yield
Expected term in years
Expected volatility

Warrants

A summary of warrant activities for years ended December 31, 2023 and 2022 is presented below:

For the Years Ended December 31, 
2022
2023

3.7 %
—
10.0
83.5 %

2.9 %
—
10.0
73.1 %

Outstanding as of December 31, 2021
Granted
Fractional share adjustment
Outstanding as of December 31, 2022
Granted
Exercised
Outstanding as of December 31, 2023

Upon the exercise of warrants, the Company will issue new shares of its common stock.

F-23

Warrants

1,249
4,356,361
(13)
4,357,597
35,513,575
(9,773,501)
30,097,671

$

$

$

Weighted Average
Exercise Price

Weighted Average
Remaining
Contractual Life
(in years)

—  

3.37
—
3.37  
2.30
1.76
2.36

3.83

3.26

3.00

    
    
    
 
 
 
 
 
 
 
 
    
    
 
 
 
 
 
    
    
    
 
 
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Stock-Based Compensation

CHECKPOINT THERAPEUTICS, INC.
Notes to Financial Statements

The following table summarizes stock-based compensation expense for the years ended December 31, 2023 and 2022 (in thousands).

Research and development
General and administrative
Total stock-based compensation expense

Note 7 – Common Stock Warrant Liabilities

For the year ended December 31, 
2022
2023

$

$

1,169
1,728
2,897

$

$

888
2,036
2,924

The Company accounts for warrants as either equity-classified or liability-classified instruments based on an assessment of the warrant’s specific terms and
applicable authoritative guidance in ASC 480, Distinguishing Liabilities from Equity and ASC 815-40, Derivatives and Hedging – Contracts in Entity’s
Own Equity. For warrants that meet all of the criteria for equity classification, the warrants are required to be recorded as a component of additional paid-in
capital at the time of issuance. For warrants that do not meet all the criteria for equity classification, the warrants are required to be recorded at their initial
fair value on the date of issuance, and each balance sheet date thereafter.

On December 16, 2022, the Company closed on an offering for the sale of shares of its common stock and pre-funded warrants as part of the December
2022 Registered Direct Offering. The common stock and the pre-funded warrants were sold together with December 2022 Common Stock Warrants. The
Company also issued the placement agent warrants to purchase shares (See Note 6).

The Company deemed the December 2022 Common Stock Warrants and December 2022 Placement Agent Warrants to be classified as liabilities on the
balance  sheet  as  they  contain  terms  for  redemption  of  the  underlying  security  that  are  outside  its  control.  The  December  2022  Common  Warrants  and
December 2022 Placement Agent Warrants were recorded at the time of closing at a fair value, determined by using the Black-Scholes Model. As the total
fair value of the common stock warrant liability exceeded the total proceeds, no proceeds were allocated to the common stock and pre-funded warrants
issued as part of the transaction. The Company revalued the December 2022 Common Stock Warrants and December 2022 Placement Agent Warrants at
December 31, 2022, resulting in a fair value of $11.2 million. The Company also revalued the December 2022 Common Stock Warrants and December
2022 Placement Agent Warrants at each reporting period in 2023, resulting in gains throughout the year.

In October 2023, the Company entered into the October 2023 Inducement with a holder of certain of its existing warrants to exercise for cash an aggregate
of 6,325,354 shares of the Company’s common stock at a reduced exercise price of $1.76 per share (see Note 6). Included in the exercise were the entirety
of the December 2022 Common Stock Warrants. The Company revalued the December 2022 Common Stock Warrants on October 4, 2023, resulting in a
fair  value  of  $3.1  million.  The  decrease  in  the  fair  value  of  the  common  stock  warrant  liability  throughout  the  year  resulted  in  an  offsetting  gain  on
common  stock  warrant  liabilities  in  the  Statements  of  Operations.  Since  the  December  2022  Placement Agent  Warrants  issued  in  the  December  2022
Registered Direct Offering were not included in the October 2023 Inducement and have not been exercised, they were revalued at December 31, 2023.

Common Stock Warrant liabilities at December 31, 2021
Issuance of December 2022 Common Stock Warrants
Issuance of December 2022 Placement Agent Warrants
Change in fair value of Common Stock Warrant liabilities
Common Stock Warrant liabilities at December 31, 2022
Change in fair value of Common Stock Warrant liabilities
Exercise of December 2022 Common Stock Warrants
Common Stock Warrant liabilities at December 31, 2023

F-24

Warrant
Liabilities

—
7,640
278
3,252
11,170
(7,924)
(3,121)
125

$

$

$

    
    
 
 
    
 
 
 
 
Table of Contents

CHECKPOINT THERAPEUTICS, INC.
Notes to Financial Statements

The Company used the Black-Scholes Model for determining the estimated fair value of the common stock warrant liabilities, including as part of the
October 2023 Inducement. A summary of the weighted average (in aggregate) significant unobservable inputs used in measuring the warrant liability is
determined using Level 3 inputs as follows:

Series A Warrants
Exercise price
Volatility
Expected life
Risk-free rate
Dividend yield

Series B Warrants
Exercise price
Volatility
Expected life
Risk-free rate
Dividend yield

Placement Agent Warrants
Exercise price
Volatility
Expected life
Risk-free rate
Dividend yield

Note 8 - Income Taxes

$

$

$

October 4,
2023

December 31,
2022

1.76
$
91.4 %    
4.2
4.7 %    
—  

4.08
89.4 %
5.0
4.0 %
—

October 4,
2023

December 31,
2022

1.76
$
99.6 %    
0.7
5.4 %    
—  

4.08
82.4 %
1.5
4.7 %
—

December 31,
2023

December 31,
2022

5.41
$
96.4 %    
4.0
3.8 %    
—  

5.41
89.4 %
5.0
4.0 %
—

The Company has accumulated net losses since inception and has not recorded an income tax provision or benefit during the years ended December 31,
2023 and 2022.

A reconciliation of the statutory U.S. federal rate to the Company’s effective tax rate is as follows:

Percentage of pre-tax income:
Statutory federal income tax rate
State taxes, net of federal tax benefit
Credits
Change in state tax rate
Provision to return
Stock based compensation
Change in fair market value of warrant
Other
Change in valuation allowance
Income taxes provision (benefit)

F-25

For the Year Ended December 31, 

2023

2022

21 %  
11 %  
2 %  
12 %  
— %  
(1)%  
— %  
(1)%  
(43)%  
— %  

21 %
4 %
3 %
(4)%
— %
— %
— %  
(3)%
(21)%
— %

    
    
 
 
 
 
 
 
 
    
    
 
 
 
 
 
 
 
    
    
 
 
 
 
 
 
 
 
    
    
 
 
   
  
 
 
 
 
 
 
 
 
 
Table of Contents

CHECKPOINT THERAPEUTICS, INC.
Notes to Financial Statements

The components of the net deferred tax asset as of December 31, 2023 and 2022 are the following (in thousands):

Deferred tax assets:

Net operating loss carryovers
Stock compensation and other
Amortization of license
Accruals and reserves
Tax credits
Start Up Costs
Section 174 Capitalization

Total deferred tax assets

Less valuation allowance

Deferred tax asset, net of valuation allowance

As of December 31, 

2023

2022

$

$

$

45,000
1,384
11,126
825
5,105
24
23,793
87,257
(87,257)

— $

40,456
1,066
7,952
463
4,112
21
10,671
64,741
(64,741)
—

The  Company  has  determined,  based  upon  available  evidence,  that  it  is  more  likely  than  not  that  the  net  deferred  tax  asset  will  not  be  realized  and,
accordingly, has provided a full valuation allowance against its net deferred tax asset. A valuation allowance of approximately $87.3 million and $64.7
million was recorded for the years ended December 31, 2023 and 2022, respectively. As of December 31, 2023, the Company had federal and state net
operating loss carryforwards of approximately $166.8 million and $154.2 million, respectively. Approximately $135.6 million of the federal net operating
loss carryforwards and $1.7 million of the state net operating loss carryforwards can be carried forward indefinitely. The remaining $31.2 million of federal
and $152.5 million of state net operating loss carryforwards will begin to expire, if not utilized, by 2034 and 2034, respectively. The Company has $3.7
million of research and development credit carryforwards and $1.4 million of orphan drug credit carryforwards, which will begin to expire, if not utilized,
by  2034.  Utilization  of  the  net  operating  loss  and  credit  carryforwards  may  be  subject  to  an  annual  limitation  due  to  the  ownership  change  limitations
provided by Section 382 of the Internal Revenue Code of 1986, as amended and similar state provisions. The Company has not completed an analysis to
determine whether any such limitations have been triggered as of December 31, 2023. The Company has no income tax affect due to the recognition of a
full valuation allowance on the expected tax benefits of future loss carry forwards based on uncertainty surrounding realization of such assets.

There are no significant matters determined to be unrecognized tax benefits taken or expected to be taken in a tax return, in accordance with ASC 740,
which clarifies the accounting for uncertainty in income taxes recognized in the financial statements, that have been recorded on the Company’s financial
statements for the years ended December 31, 2023 and 2022. The Company does not anticipate a material change to unrecognized tax benefits in the next
twelve months.

Additionally, ASC 740 provides guidance on the recognition of interest and penalties related to income taxes. There were no interest or penalties related to
income taxes that have been accrued or recognized as of and for the period ended December 31, 2023 and 2022. The Company would classify interest and
penalties related to uncertain tax positions as income tax expense, if applicable.

The federal and state tax returns for the periods ended December 31, 2020, 2021 and 2022 are currently open for examination under the applicable federal
and state income tax statues of limitations.

Beginning with the 2022 tax year, the Company is required to capitalize research and development expenses for tax purposes as defined under Internal
Revenue Code Section 174. For expenses that are incurred for research and development in the U.S., the amounts will be amortized over 5 years, and for
expenses that are incurred for research and development outside the U.S., the amounts will be amortized over 15 years.

F-26

    
    
 
   
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

CHECKPOINT THERAPEUTICS, INC.
Notes to Financial Statements

Note 9 - Accounts Payable and Accrued Expenses

At December 31, 2023 and 2022, accounts payable and accrued expenses consisted of the following (in thousands):

Accounts payable
Accrued compensation
Research and development
Other
Total accounts payable and accrued expenses

Note 10 – Subsequent Events

December 31, 

2023

2022

$

$

6,570
1,206
7,123
586
15,485

$

$

11,535
1,195
7,289
278
20,297

In  January  2024,  the  Company  closed  on  a  registered  direct  offering  (the  “January  2024  Registered  Direct  Offering”)  for  the  issuance  and  sale  of  an
aggregate of 1,275,000 shares of its common stock at a purchase price of $1.805 per share of common stock. In addition, the offering includes 6,481,233
shares  of  common  stock  in  the  form  of  pre-funded  warrants  at  a  price  of  $1.8049. The  pre-funded  warrants  were  funded  in  full  at  closing  except  for  a
nominal exercise price of $0.0001 and are exercisable commencing on the closing date and will terminate when such pre-funded warrants are exercised in
full. In a concurrent private placement, Checkpoint issued and sold common warrants (the “January 2024 Common Warrants”) to purchase up to 7,756,233
shares of common stock. The January 2024 Common Warrants are exercisable immediately upon issuance with an exercise price of $1.68 per share and
will expire five years following the issuance date. The Company also issued the placement agent warrants to purchase up to 465,374 shares of common
stock with an exercise price of $2.2563 per share. The total gross proceeds from the January 2024 Registered Direct Offering were approximately $14.0
million  with  net  proceeds  of  approximately  $12.8  million  after  deducting  approximately  $1.2  million  in  commissions  and  other  transaction  costs.  The
shares of common stock and the shares underlying the pre-funded warrants were registered for sale under the March 2023 S-3. The Company will file a
registration statement to register the January 2024 Common Stock Warrants and placement agent warrants.

As of March 19 2024, 2,661,233 pre-funded warrants from the January 2024 Registered Direct Offering were fully exercised.

F-27

    
    
 
 
 
 
 
Table of Contents

Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by
the undersigned, thereunto duly authorized.

SIGNATURES

Checkpoint Therapeutics, Inc.
By:   /s/ James F. Oliviero

Name: James F. Oliviero
Title: President, Chief Executive Officer and Director
March 22, 2024

POWER OF ATTORNEY

We, the undersigned directors and/or executive officers of Checkpoint Therapeutics, Inc., hereby severally constitute and appoint James F. Oliviero, acting
singly, his or her true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him or her in any and all capacities, to
sign this report and to file the same, with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission,
granting unto said attorney-in-fact and agent full power and authority to do and perform each and every act and thing necessary or appropriate to be done
in connection therewith, as fully for all intents and purposes as he or she might or could do in person, hereby approving, ratifying and confirming all that
said attorney-in-fact and agent, or his substitute, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant
and in the capacities and on the dates indicated.

Signature

Title

/s/ James F. Oliviero
James F. Oliviero

/s/ Garrett Gray
Garrett Gray

/s/ Michael S. Weiss
Michael S. Weiss

/s/ Lindsay A. Rosenwald
Lindsay A. Rosenwald, M.D.

/s/ Neil Herskowitz
Neil Herskowitz

/s/ Barry Salzman
Barry Salzman

/s/ Christian Béchon
Christian Béchon

/s/ Amit Sharma
Amit Sharma, MD

President, Chief Executive Officer and Director
(Principal Executive Officer) 

Chief Financial Officer
(Principal Financial Officer)

Date

March 22, 2024

March 22, 2024

Chairman of the Board

March 22, 2024

Director

Director

Director

Director

Director

March 22, 2024

March 22, 2024

March 22, 2024

March 22, 2024

March 22, 2024

 
 
 
 
 
 
 
 
    
    
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
   
 
 
 
   
 
 
 
 
   
Exhibit 4.6

When used herein, the terms “we,” “our,” and “us” refer to Checkpoint Therapeutics, Inc.

DESCRIPTION OF SECURITIES

DESCRIPTION OF CAPITAL STOCK

The following description summarizes the material terms of Checkpoint capital stock. Because it is only a summary, it does not contain all the
information that may be important to you. For a complete description of our capital stock, you should refer to our certificate of incorporation, our bylaws
and to the provisions of applicable Delaware law.

Common Stock

Our common stock is traded on The Nasdaq Capital Market, or the Exchange, under the symbol “CKPT.”

The  authorized  capital  stock  of  Checkpoint  consists  of  80,000,000  shares  of  common  stock,  of  which  700,000  shares  have  been  designated  as
Class A common stock. The description of our Class A Common Stock in this item is for information purposes only. All of the Class A common stock has
been issued to Fortress. Class A common stock is identical to common stock other than as to voting rights, the election of directors for a definite period,
and  conversion  rights.  On  any  matter  presented  to  our  stockholders  for  their  action  or  consideration  at  any  meeting  of  our  stockholders  (or  by  written
consent of stockholders in lieu of meeting), each holder of outstanding shares of Class A common stock will be entitled to cast for each share of Class A
common stock held by such holder as of the record date for determining stockholders entitled to vote on such matter, the number of votes that is equal to
one and one-tenth (1.1) times a fraction, the numerator of which is the sum of the shares of outstanding common stock and the denominator of which is the
number of shares of outstanding Class A common stock. Thus, the Class A common stock will at all times constitute a voting majority. For a period of ten
(10) years from the date of the first issuance of shares of Class A common stock expiring in 2025 (the “Class A Director Period”), the holders of record of
the  shares  of  Class  A  common  stock  (or  other  capital  stock  or  securities  issued  upon  conversion  of  or  in  exchange  for  the  Class  A  common  stock),
exclusively and as a separate class, will be entitled to appoint or elect the majority of the directors of Checkpoint (the “Class A Directors”). Finally, each
share of Class A common stock is convertible, at the option of the holder, into one fully paid and nonassessable share of common stock (the “Conversion
Ratio”), subject to certain adjustments.

If Checkpoint at any time effects a subdivision of the outstanding common stock (or other capital stock or securities at the time issuable upon
conversion  of  the  Class A  common  stock)  by  any  stock  split,  stock  dividend,  recapitalization  or  otherwise,  the  applicable  Conversion  Ratio  in  effect
immediately before that subdivision will be proportionately decreased so that the number of shares of common stock (or other capital stock or securities at
the  time  issuable  upon  conversion  of  the  Class A  common  stock)  issuable  on  conversion  of  each  share  of  Class A  common  stock  will  be  increased  in
proportion to such increase in the aggregate number of shares of common stock (or other capital stock or securities at the time issuable upon conversion of
the Class A common stock) outstanding. If Checkpoint at any time combines the outstanding shares of common stock, the applicable Conversion Ratio in
effect  immediately  before  the  combination  will  be  proportionately  increased  so  that  the  number  of  shares  of  common  stock  (or  other  capital  stock  or
securities  at  the  time  issuable  upon  conversion  of  the  Class A  common  stock)  issuable  on  conversion  of  each  share  of  Class A  common  stock  will  be
decreased in proportion to such decrease in the aggregate number of shares of common stock (or other capital stock or securities at the time issuable upon
conversion  of  the  Class  A  common  stock)  outstanding.  Additionally,  if  any  reorganization,  recapitalization,  reclassification,  consolidation  or  merger
involving Checkpoint occurs in which the common stock (but not the Class A common stock) is converted into or exchanged for securities, cash or other
property  (other  than  a  transaction  involving  the  subdivision  or  combination  of  the  common  stock),  then,  following  any  such  reorganization,
recapitalization, reclassification, consolidation or merger, each share of Class A common stock becomes convertible into the kind and amount of securities,
cash or other property which such Class A Stockholder would have been entitled to receive had he or she

converted  the  Class A  Shares  immediately  before  said  transaction.  In  such  case,  appropriate  adjustment  (as  determined  in  good  faith  by  the  Board  of
Directors of Checkpoint) will be made in the application of the provisions of Checkpoint’s Amended and Restated Certificate of Incorporation relating the
subdivision or combination of the common stock with respect to the rights and interests thereafter of the holders of the Class A common stock, such that
the provisions set forth in of Checkpoint’s Amended and Restated Certificate of Incorporation relating to the subdivision or combination of the common
stock (including the provisions with respect to changes in and other adjustments of the applicable Conversion Ratio) will thereafter be applicable, as nearly
as reasonably may be, in relation to any securities or other property thereafter deliverable upon the conversion of the Class A common stock. Checkpoint is
not authorized to issue preferred stock.

Dividends

The holders of outstanding shares of our common stock, including Class A common stock, are entitled to receive dividends out of funds legally

available at the times and in the amounts that our board of directors may determine. All dividends are non-cumulative.

Voting Rights

The  holders  of  our  common  stock  are  entitled  to  one  vote  for  each  share  of  common  stock  held  on  all  matters  submitted  to  a  vote  of  the
stockholders, including the election of directors, except as to the Class A Directors during the Class A Director Period. Our certificate of incorporation and
bylaws do not provide for cumulative voting rights.

Liquidation and Dissolution

Upon our liquidation, dissolution, or winding-up, the assets legally available for distribution to our stockholders would be distributable ratably

among the holders of our common stock, including Class A common stock, outstanding at that time after payment of other claims of creditors, if any.

Other

The holders of our common stock have no preemptive, conversion, or subscription rights, and there are no redemption or sinking fund provisions

applicable to our common stock.

All of the outstanding shares of our common stock, including Class A common stock, are duly issued, fully paid and non-assessable.

DESCRIPTION OF WARRANTS

We may issue warrants to purchase shares of our common stock in one or more series together with other securities or separately, as described in

each applicable prospectus supplement.

The prospectus supplement relating to any warrants we offer will include specific terms relating to the offering. These terms will include some or

all of the following:

● the title of the warrants;

● the aggregate number of warrants offered;

● the designation, number and terms of the shares of common stock purchasable upon exercise of the warrants and procedures by which those

numbers may be adjusted;

● the exercise price of the warrants;

● the dates or periods during which the warrants are exercisable;

● the designation and terms of any securities with which the warrants are issued;

● if the warrants are issued as a unit with another security, the date on and after which the warrants and the other security will be separately

transferable;

● if the exercise price is not payable in U.S. dollars, the foreign currency, currency unit or composite currency in which the exercise price is

denominated;

● any minimum or maximum amount of warrants that may be exercised at any one time;

● any terms relating to the modification of the warrants;

● any terms, procedures and limitations relating to the transferability, exchange or exercise of the warrants; and

● any other specific terms of the warrants.

DESCRIPTION OF DEBT SECURITIES

We may offer debt securities which may be senior, subordinated or junior subordinated and may be convertible. Unless otherwise specified in the
applicable prospectus supplement, our debt securities will be issued in one or more series under an indenture to be entered into between us and a trustee.
We  will  issue  the  debt  securities  offered  by  any  applicable  prospectus  supplement  under  an  indenture  to  be  entered  into  between  us  and  the  trustee
identified in the applicable prospectus supplement. The terms of the debt securities will include those stated in the indenture and those made part of the
indenture by reference to the Trust Indenture Act of 1939, as in effect on the date of the indenture. The indenture will be subject to and governed by the
terms of the Trust Indenture Act of 1939.

The following description briefly sets forth certain general terms and provisions of the debt securities that we may offer. The particular terms of
the debt securities offered by any prospectus supplement and the extent, if any, to which these general provisions may apply to the debt securities, will be
described in the related prospectus supplement. Accordingly, for a description of the terms of a particular issue of debt securities, reference must be made
to both the related prospectus supplement and to the following description.

The aggregate principal amount of debt securities that may be issued under the indenture is unlimited. The debt securities may be issued in one or
more series as may be authorized from time to time pursuant to a supplemental indenture entered into between us and the trustee or an order delivered by
us to the trustee. For each series of debt securities we offer, a prospectus supplement will describe the following terms and conditions of the series of debt
securities that we are offering, to the extent applicable:

● title and aggregate principal amount;

● whether the debt securities will be senior, subordinated or junior subordinated;

● applicable subordination provisions, if any;

● provisions regarding whether the debt securities will be convertible or exchangeable into other securities or property of the Company or any other

person;

● percentage or percentages of principal amount at which the debt securities will be issued;

● maturity date(s);

● interest rate(s) or the method for determining the interest rate(s);

● whether interest on the debt securities will be payable in cash or additional debt securities of the same series;

● dates on which interest will accrue or the method for determining dates on which interest will accrue and dates on which interest will be payable;

● whether the amount of payment of principal of, premium, if any, or interest on the debt securities may be determined with reference to an index,

formula or other method;

● redemption, repurchase or early repayment provisions, including our obligation or right to redeem, purchase or repay debt securities under a

sinking fund, amortization or analogous provision;

● if other than the debt securities’ principal amount, the portion of the principal amount of the debt securities that will be payable upon declaration

of acceleration of the maturity;

● authorized denominations;

● form;

● amount of discount or premium, if any, with which the debt securities will be issued, including whether the debt securities will be issued as

“original issue discount” securities;

● the place or places where the principal of, premium, if any, and interest on the debt securities will be payable;

● where the debt securities may be presented for registration of transfer, exchange or conversion;

● the place or places where notices and demands to or upon the Company in respect of the debt securities may be made;

● whether the debt securities will be issued in whole or in part in the form of one or more global securities;

● if the debt securities will be issued in whole or in part in the form of a book-entry security, the depository or its nominee with respect to the debt
securities and the circumstances under which the book-entry security may be registered for transfer or exchange or authenticated and delivered in
the name of a person other than the depository or its nominee;

● whether a temporary security is to be issued with respect to such series and whether any interest payable prior to the issuance of definitive

securities of the series will be credited to the account of the persons entitled thereto;

● the terms upon which beneficial interests in a temporary global security may be exchanged in whole or in part for beneficial interests in a

definitive global security or for individual definitive securities;

● the guarantors, if any, of the debt securities, and the extent of the guarantees and any additions or changes to permit or facilitate guarantees of such

debt securities;

● any covenants applicable to the particular debt securities being issued;

● any defaults and events of default applicable to the debt securities, including the remedies available in connection therewith;

● currency, currencies or currency units in which the purchase price for, the principal of and any premium and any interest on, such debt securities

will be payable;

● time period within which, the manner in which and the terms and conditions upon which the Company or the purchaser of the debt securities can

select the payment currency;

● securities exchange(s) on which the debt securities will be listed, if any;

● whether any underwriter(s) will act as market maker(s) for the debt securities;

● extent to which a secondary market for the debt securities is expected to develop;

● provisions relating to defeasance;

● provisions relating to satisfaction and discharge of the indenture;

● any restrictions or conditions on the transferability of the debt securities;

● provisions relating to the modification of the indenture both with and without the consent of holders of debt securities issued under the indenture;

● any addition or change in the provisions related to compensation and reimbursement of the trustee;

● provisions, if any, granting special rights to holders upon the occurrence of specified events;

● whether the debt securities will be secured or unsecured, and, if secured, the terms upon which the debt securities will be secured and any other

additions or changes relating to such security; and

● any other terms of the debt securities that are not inconsistent with the provisions of the Trust Indenture Act (but may modify, amend, supplement

or delete any of the terms of the indenture with respect to such series of debt securities).

General

One  or  more  series  of  debt  securities  may  be  sold  as  “original  issue  discount”  securities.  These  debt  securities  would  be  sold  at  a  substantial
discount below their stated principal amount, bearing no interest or interest at a rate which at the time of issuance is below market rates. One or more series
of debt securities may be variable rate debt securities that may be exchanged for fixed rate debt securities.

United States federal income tax consequences and special considerations, if any, applicable to any such series will be described in the applicable

prospectus supplement.

Debt securities may be issued where the amount of principal and/or interest payable is determined by reference to one or more currency exchange
rates, commodity prices, equity indices or other factors. Holders of such debt securities may receive a principal amount or a payment of interest that is
greater  than  or  less  than  the  amount  of  principal  or  interest  otherwise  payable  on  such  dates,  depending  upon  the  value  of  the  applicable  currencies,
commodities, equity indices or other factors. Information as to the methods for determining the amount of principal or interest, if any, payable on any date,
the currencies, commodities, equity indices or other factors to which the amount payable on such date is linked and certain additional United States federal
income tax considerations will be set forth in the applicable prospectus supplement.

The term “debt securities” includes debt securities denominated in U.S. dollars or, if specified in the applicable prospectus supplement, in any

other freely transferable currency or units based on or relating to foreign currencies.

We expect most debt securities to be issued in fully registered form without coupons and in denominations of $2,000 and any integral multiples
thereof. Subject to the limitations provided in the indenture and in the prospectus supplement, debt securities that are issued in registered form may be
transferred  or  exchanged  at  the  principal  corporate  trust  office  of  the  trustee,  without  the  payment  of  any  service  charge,  other  than  any  tax  or  other
governmental charge payable in connection therewith.

Global Securities

The debt securities of a series may be issued in whole or in part in the form of one or more global securities that will be deposited with, or on
behalf  of,  a  depositary  identified  in  the  prospectus  supplement.  Global  securities  will  be  issued  in  registered  form  and  in  either  temporary  or  definitive
form. Unless and until it is exchanged in whole or in part for the individual debt securities, a global security may not be transferred except as a whole by
the depositary for such global security to a nominee of such depositary or by a nominee of such depositary to such depositary or another nominee of such
depositary  or  by  such  depositary  or  any  such  nominee  to  a  successor  of  such  depositary  or  a  nominee  of  such  successor.  The  specific  terms  of  the
depositary  arrangement  with  respect  to  any  debt  securities  of  a  series  and  the  rights  of  and  limitations  upon  owners  of  beneficial  interests  in  a  global
security will be described in the applicable prospectus supplement.

Governing Law

The indenture and the debt securities shall be construed in accordance with and governed by the laws of the State of New York.

DESCRIPTION OF UNITS

We may issue, in one more series, units comprised of shares of our common stock, warrants to purchase common stock, debt securities or any
combination of those securities. Each unit will be issued so that the holder of the unit is also the holder of each security included in the unit. Thus, the
holder of a unit will have the rights and obligations of a holder of each included security. The unit agreement under which a unit is issued may provide that
the securities included in the unit may not be held or transferred separately, at any time or at any time before a specified date.

We may evidence units by unit certificates that we issue under a separate agreement. We may issue the units under a unit agreement between us
and one or more unit agents. If we elect to enter into a unit agreement with a unit agent, the unit agent will act solely as our agent in connection with the
units and will not assume any obligation or relationship of agency or trust for or with any registered holders of units or beneficial owners of units. We will
indicate the name and address and other information regarding the unit agent in the applicable prospectus supplement relating to a particular series of units
if we elect to use a unit agent.

We will describe in the applicable prospectus supplement the terms of the series of units being offered, including:

● the designation and terms of the units and of the securities comprising the units, including whether and under what circumstances those securities

may be held or transferred separately;

● any provisions of the governing unit agreement that differ from those described herein; and

● any provisions for the issuance, payment, settlement, transfer or exchange of the units or of the securities comprising the units.

The other provisions regarding our common stock, warrants and debt securities as described in this section will apply to each unit to the extent

such unit consists of shares of our common stock, warrants and/or debt securities.

MUTUAL TERMINATION AGREEMENT

Exhibit 10.12.2

This Mutual Termination Agreement (this “Agreement”) is effective as of September 30, 2023 (the “Effective Date”) by and between Checkpoint 

Therapeutics, Inc., a Delaware corporation with its place of business at 95 Sawyer Road, Suite 110, Waltham, MA 02453 (“Checkpoint”) and TG 
Therapeutics, Inc., a Delaware corporation  with its place of business at 2 Gansevoort Street, 9th Floor, New York, New York 10014 (“TGTX”).  
Checkpoint and TGTX may each individually be referred to as a “Party” herein and collectively as the “Parties”.

WHEREAS, Checkpoint and TGTX entered into a Sublicense Agreement dated May 26, 2016 (as amended or supplemented, the “Sublicense

Agreement”);

WHEREAS, Checkpoint and TGTX have mutually agreed to terminate the Sublicense Agreement.

NOW, THEREFORE, Checkpoint and TGTX, for good and valuable consideration, the receipt, adequacy and sufficiency of which are hereby

acknowledged, do hereby agree as follows:

1. Capital terms used herein that are not otherwise defined shall have the meanings as given to them in the Sublicense Agreement.

2. The Sublicense Agreement is hereby terminated as of the Effective Date.

3. TGTX shall pay to Checkpoint any expenses which remain, as of the Effective Date, owing pursuant to Section 6.1(a) of the Sublicense

Agreement. Except as expressly provided in this Agreement, the Parties acknowledge and agree that no further compensation, consideration or obligation
will be due, payable or owing with respect to the Sublicense Agreement.

4. Checkpoint hereby releases TGTX, its officers, employees, directors, agents, successor entities, assigns, and representatives from and against any

and all claims, losses, damages, liabilities, demands, costs and expenses attributable to, or arising out of, in any way the Sublicense Agreement.

5. TGTX hereby releases Checkpoint, its officers, employees, directors, agents, successor entities, assigns, and representatives from and against any

and all claims, losses, damages, liabilities, demands, costs and expenses attributable to, or arising out of, in any way the Sublicense Agreement.

6. This Agreement shall be governed and interpreted, and all rights and obligations of the parties shall be determined, in accordance with the laws of 

the State of New York, without regard to its conflict of laws rules. All disputes with respect to this Agreement, which cannot be resolved by good faith 
negotiation among the parties, shall be brought and heard in the United States District Court for the Southern District of New York or any State courts 
sitting in New York, New York.  The parties to this Agreement each consent to the in personam jurisdiction and agree that service of process upon them in 
any such action may be made if delivered in person, by courier service, by facsimile or by certified mail, postage prepaid, return receipt requested, and 
shall be deemed effectively given upon confirmed receipt thereof.

7. This Agreement may be executed in two counterparts and either party hereto may execute any such counterpart, both of which when executed and
delivered shall be deemed to be an original and to which both counterparts, when fully executed by all of the parties, taken together shall constitute but one
and the same instrument.

8. The Agreement states the entire agreement among the parties hereto concerning the termination of the Sublicense Agreement, and supersedes any
and all prior agreements, commitments, communications, negotiations, offers (whether in writing or oral), representations, statements, understandings and
writings pertaining thereto, and may not be amended or modified except by written instrument duly executed and delivered by each of the parties hereto.

IN WITNESS WHEREOF, this Mutual Termination Agreement has been duly executed and delivered by their duly authorized representatives to be

effective as of the Effective Date.

Checkpoint Therapeutics, Inc.

/s/ James F. Oliviero

By:
Name: James F. Oliviero
Title: President & CEO

TG Therapeutics, Inc.

/s/ Michael Weiss

By:
Name: Michael Weiss
Title: CEO & President

MUTUAL TERMINATION AGREEMENT

Exhibit 10.12.3

This Mutual Termination Agreement (this “Agreement”) is effective as of September 30, 2023 (the “Effective Date”) by and between Checkpoint
Therapeutics, Inc., a Delaware corporation with its place of business at 95 Sawyer Road, Suite 110, Waltham, MA 02453 (“CTI”) and TG Therapeutics,
Inc., a Delaware corporation with its place of business at 2 Gansevoort Street, 9th Floor, New York, New York 10014 (“TGTX”).  CTI and TGTX may each 
individually be referred to as a “Party” herein and collectively as the “Parties.”

WHEREAS, CTI and TGTX entered into an Amended and Restated Collaboration Agreement dated June 19, 2019 (as amended or supplemented, the

“Collaboration Agreement”);

WHEREAS, CTI and TGTX have mutually agreed to terminate the Collaboration Agreement.

NOW, THEREFORE, CTI and TGTX, for good and valuable consideration, the receipt, adequacy and sufficiency of which are hereby

acknowledged, do hereby agree as follows:

1. Capital terms used herein that are not otherwise defined shall have the meanings as given to them in the Collaboration Agreement.

2. The Collaboration Agreement is hereby terminated as of the Effective Date.

3. TGTX shall pay to CTI any expenses which remain, as of the Effective Date, owing pursuant to Section 6.1(a) of the Collaboration Agreement.

Except as expressly provided in this Agreement, the Parties acknowledge and agree that no further compensation, consideration or obligation will be due,
payable or owing with respect to the Collaboration Agreement.

4. CTI hereby releases TGTX, its officers, employees, directors, agents, successor entities, assigns, and representatives from and against any and all

claims, losses, damages, liabilities, demands, costs and expenses attributable to, or arising out of, in any way the Collaboration Agreement.

5. TGTX hereby releases CTI, its officers, employees, directors, agents, successor entities, assigns, and representatives from and against any and all

claims, losses, damages, liabilities, demands, costs and expenses attributable to, or arising out of, in any way the Collaboration Agreement.

6. This Agreement shall be governed and interpreted, and all rights and obligations of the parties shall be determined, in accordance with the laws of 

the State of New York, without regard to its conflict of laws rules. All disputes with respect to this Agreement, which cannot be resolved by good faith 
negotiation among the parties, shall be brought and heard in the United States District Court for the Southern District of New York or any State courts 
sitting in New York, New York.  The parties to this Agreement each consent to the in personam jurisdiction and agree that service of process upon them in 
any such action may be made if delivered in person, by courier service, by facsimile or by certified mail, postage prepaid, return receipt requested, and 
shall be deemed effectively given upon confirmed receipt thereof.

7. This Agreement may be executed in two counterparts and either party hereto may execute any such counterpart, both of which when executed and
delivered shall be deemed to be an original and to which both counterparts, when fully executed by all of the parties, taken together shall constitute but one
and the same instrument.

8. The Agreement states the entire agreement among the parties hereto concerning the termination of the Collaboration Agreement, and supersedes

any and all prior agreements, commitments, communications, negotiations, offers (whether in writing or oral), representations, statements, understandings
and writings pertaining thereto, and may not be amended or modified except by written instrument duly executed and delivered by each of the parties
hereto.

IN WITNESS WHEREOF, this Mutual Termination Agreement has been duly executed and delivered by their duly authorized representatives to be

effective as of the Effective Date.

Checkpoint Therapeutics, Inc.

/s/ James F. Oliviero
By:
Name: James F. Oliviero
Title: President & CEO

TG Therapeutics, Inc.

/s/ Michael Weiss
By:
Name: Michael Weiss
Title: CEO & President

KPMG LLP
Two Financial Center
60 South Street
Boston, MA 02111

Consent of Independent Registered Public Accounting Firm

Exhibit 23.1

We consent to the incorporation by reference in the registration statements (Nos. 333-270474, 333-270474, 333-270843, 333-271171, 333-275644) on
Form S-3 and (Nos. 333-216856, 333-221488, 333-251000, 333-268740, 333-275643) on Form S-8 of our report dated March 22, 2024, with respect to the
financial statements of Checkpoint Therapeutics, Inc.

Boston, Massachusetts
March 22, 2024

/s/ KPMG LLP

EXHIBIT 31.1

I, James F. Oliviero certify that:

CERTIFICATION PURSUANT TO
SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

(1) I have reviewed this Annual Report on Form 10-K for the year ended December 31, 2023 of Checkpoint Therapeutics, Inc. (the registrant);

(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(s)  and  I  are  responsible  for  establishing  and  maintaining  disclosure  controls  and  procedures  (as  defined  in
Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for
the registrant and have:

(a)  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 the report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal
quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the
registrant’s internal control over financial reporting; and

(5) The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the
registrant’s auditors and the audit committee of 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.

Dated: March 22, 2024

By: /s/ James F. Oliviero
James F. Oliviero
President, Chief Executive Officer and Director
Principal Executive Officer

EXHIBIT 31.2

I, Garrett Gray, certify that:

CERTIFICATION PURSUANT TO
SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

(1) I have reviewed this Annual Report on Form 10-K for the year ended December 31, 2023 of Checkpoint Therapeutics, Inc. (the registrant);

(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(s)  and  I  are  responsible  for  establishing  and  maintaining  disclosure  controls  and  procedures  (as  defined  in
Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for
the registrant and have:

(a)  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 the report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal
quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the
registrant’s internal control over financial reporting; and

(5) The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the
registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a)  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.

Dated: March 22, 2024

By: /s/ Garrett Gray
Garrett Gray
Chief Financial Officer
Principal Financial Officer

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report on Form 10-K of Checkpoint Therapeutics, Inc. (the “Company”) for the period ended December 31, 2023, as filed
with  the  Securities  and  Exchange  Commission  on  the  date  hereof  (the  “Report”),  I,  James  F.  Oliviero,  President  and  Chief  Executive  Officer  of  the
Company,  hereby  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; and
(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of,
and for, the periods presented in the Report.

EXHIBIT 32.1

Dated: March 22, 2024

By: /s/ James F. Oliviero
James F. Oliviero
President, Chief Executive Officer and Director
Principal Executive Officer

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report on Form 10-K of Checkpoint Therapeutics, Inc. (the “Company”) for the period ended December 31, 2023, as filed
with  the  Securities  and  Exchange  Commission  on  the  date  hereof  (the  “Report”),  I,  Garrett  Gray,  Principal  Financial  Officer  of  the  Company,  hereby
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; and
(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company, as of,
and for, the periods presented in the Report.

EXHIBIT 32.2

Dated: March 22, 2024

By: /s/ Garrett Gray
Garrett Gray
Chief Financial Officer
Principal Financial Officer

Exhibit 97.1

CHECKPOINT THERAPEUTICS, INC.
INCENTIVE COMPENSATION RECOVERY POLICY

1.0

General.

1.1

Checkpoint Therapeutics, Inc. (the “Company”) has adopted this Policy in accordance with the applicable listing standards of
Nasdaq  and  Rule  10D-1  under  the  Securities  Exchange Act  of  1934,  as  amended  (the  “Exchange Act”),  which  require  listed
companies to adopt and comply with a compensation recovery policy.

1.2

The effective date of this Policy is September 18, 2023 (the “Effective Date”).

2.0

Definitions. The following words and phrases shall have the following meanings for purposes of this Policy:

2.1

2.2

2.3

2.4

2.5

Accounting Restatement. An “Accounting Restatement” means an accounting restatement due to the material noncompliance of
the Company with any financial reporting requirement under the securities laws, including any required accounting restatement
to correct an error in previously issued financial statements that is material to the previously issued financial statements, or that
would result in a material misstatement if the error were corrected in the current period or left uncorrected in the current period.

Board. The “Board” means the Board of Directors of the Company.

Compensation Committee. The “Compensation Committee” means the Compensation and Governance Committee of the Board.

Erroneously Awarded  Compensation.  “Erroneously Awarded  Compensation”  is  the  amount  of  Incentive-Based  Compensation
Received  that  exceeds  the  amount  of  Incentive-Based  Compensation  that  otherwise  would  have  been  Received  had  it  been
determined based on the restated amounts, computed without regard to any taxes paid. For Incentive-Based Compensation based
on stock price or TSR, where the amount of Erroneously Awarded Compensation is not subject to mathematical recalculation
directly from the information in an Accounting Restatement: (i) the amount shall be based on a reasonable estimate of the effect
of the Accounting Restatement on the stock price or TSR upon which the Incentive-Based Compensation was Received, and (ii)
the Company shall maintain documentation of the determination of that reasonable estimate and provide such documentation to
Nasdaq.

Executive Officer. The term “Executive Officer” means the Company’s principal executive officer, president, principal financial
officer, principal accounting officer (or if there is no such accounting officer, the controller), any vice president of the Company
in  charge  of  a  principal  business  unit,  division,  or  function  (such  as  sales,  administration,  or  finance),  any  other  officer  who
performs  a  policy-making  function,  or  any  other  person  who  performs  similar  policy-making  functions  for  the  Company.
Executive  officers  of  any  parent  or  subsidiary  of  the  Company  are  deemed  “Executive  Officers”  if  they  perform  such  policy-
making functions for the Company. Executive Officers include, but are not limited to, the officers identified as executive officers
by the Company in the Company’s filings with the SEC pursuant to Item 401(b) of Regulation S-K and the officers required to
file reports under Section 16 of the Exchange Act.

-1-

2.6

2.7

2.8

Financial Reporting Measure. A “Financial Reporting Measure” is any measure that is determined and presented in accordance
with the accounting principles used in preparing the Company’s financial statements, and any measure that is derived wholly or
in part from such measure. Stock price and TSR are also Financial Reporting Measures. A Financial Reporting Measure need not
be presented within the Company’s financial statements or included in a filing with the SEC.

Incentive-Based Compensation. The term “Incentive-Based Compensation” means any compensation that is granted, earned, or
vested based wholly or in part upon the attainment of a Financial Reporting Measure. Please refer to Appendix A to this Policy
for a list of examples of Incentive-Based Compensation.

Nasdaq. “Nasdaq” means the Nasdaq Capital Market. In the event the Company’s securities become listed on a different national
securities exchange or national securities association in the future, then following such new listing, references to Nasdaq shall be
deemed to refer to such other national securities exchange or national securities association.

2.9

Policy. “Policy” means this Incentive Compensation Recovery Policy.

2.10

Received.  Incentive-Based  Compensation  is  deemed  “Received”  in  the  Company’s  fiscal  period  during  which  the  Financial
Reporting  Measure  specified  in  the  Incentive-Based  Compensation  award  is  attained,  even  if  the  payment  or  grant  of  the
Incentive-Based Compensation occurs after the end of that period.

2.11

SEC. “SEC” means the United States Securities and Exchange Commission.

2.12

TSR. “TSR” means total stockholder return.

3.0

Statement of Policy.

3.1

In the event that the Company is required to prepare an Accounting Restatement, the Company will recover reasonably promptly
the amount of all Erroneously Awarded Compensation Received by a person:

i.

ii.

iii.

iv.

After beginning service as an Executive Officer;

Who  served  as  an  Executive  Officer  at  any  time  during  the  performance  period  for  that  Incentive-Based
Compensation;

While the Company has a class of securities listed on Nasdaq; and

During the three completed fiscal years immediately preceding the date that the Company is required to prepare the
Accounting Restatement and any transition period (that results from a change in the Company’s fiscal year) within
or immediately following those three completed fiscal years. For purposes of this Policy, a transition period between
the last day of the Company’s previous fiscal year and the first day of its new fiscal year that comprises a period of
nine to twelve months would be deemed a completed fiscal year.

Notwithstanding the foregoing, this Policy shall only apply to Incentive-Based Compensation Received on or after the Effective
Date.

-2-

3.2

3.3

3.4

3.5

3.6

3.7

3.8

The Company’s obligation to recover Erroneously Awarded Compensation pursuant to this Policy is not dependent on when the
restated financial statements are filed.

For purposes of determining the relevant recovery period under this Policy, the date that the Company is required to prepare an
Accounting Restatement is the earliest to occur of: (i) the date the Board, a committee of the Board, or the officer or officers of
the Company authorized to take such action if Board action is not required, concludes, or reasonably should have concluded, that
the  Company  is  required  to  prepare  an Accounting  Restatement;  or  (ii)  the  date  a  court,  regulator,  or  other  legally  authorized
body directs the Company to prepare an Accounting Restatement.

The  Company  must  recover  Erroneously Awarded  Compensation  in  compliance  with  this  Policy  except  to  the  extent  that  the
conditions of paragraphs (i), (ii) or (iii) in this Section 3.4 are met, and the Compensation Committee, or in the absence of such a
committee, a majority of the independent directors serving on the Board, has determined that recovery would be impracticable.

i.

ii.

iii.

The direct expense paid to a third party to assist in enforcing this Policy would exceed the amount to be recovered.
Before  concluding  that  it  would  be  impracticable  to  recover  any  amount  of  Erroneously Awarded  Compensation
based  on  expense  of  enforcement,  the  Company  shall  make  a  reasonable  attempt  to  recover  such  Erroneously
Awarded  Compensation,  document  such  reasonable  attempt(s)  to  recover,  and  provide  that  documentation  to
Nasdaq.

Recovery  would  violate  home  country  law  where  that  law  was  adopted  prior  to  November  28,  2022.  Before
concluding  that  it  would  be  impractical  to  recover  any  amount  of  Erroneously Awarded  Compensation  based  on
violation of home country law, the Company shall obtain an opinion of home country counsel, acceptable to Nasdaq,
that recovery would result in such a violation, and provide such opinion to Nasdaq.

Recovery would likely cause an otherwise tax-qualified retirement plan, under which benefits are broadly available
to  employees  of  the  Company,  to  fail  to  meet  the  requirements  of  26  U.S.C.  401(a)(13)  or  26  U.S.C.  411(a)  and
regulations thereunder.

The Company shall not indemnify any Executive Officer or former Executive Officer against the loss of Erroneously Awarded
Compensation pursuant to this Policy.

The Compensation Committee shall determine, in its sole discretion, the appropriate means to seek recovery of any Erroneously
Awarded Compensation.

To  the  extent  an  Executive  Officer,  former  Executive  Officer  or  Other  Covered  Person  refuses  to  pay  to  the  Company  any
Erroneously Awarded Compensation, the Company shall have the right to sue for repayment or, to the extent legally permitted,
to enforce such person’s obligation to make payment by withholding unpaid or future compensation.

The  Company  shall  file  all  disclosures  with  respect  to  this  Policy  in  accordance  with  the  requirements  of  the  U.S.  Federal
securities laws, including the disclosure required by the applicable SEC filings.

-3-

4.0

Application to Additional Persons.

4.1

4.2

4.3

4.4

In  addition  to  the  Executive  Officers  and  former  Executive  Officers,  this  Policy  shall  apply  to  any  other  employee  of  the
Company  or  its  parent  or  subsidiaries  designated  by  the  Compensation  Committee  or  the  Board  as  a  person  covered  by  this
Policy (each, an “Other Covered Person”).

Unless otherwise determined by the Compensation Committee or the Board, this Policy shall apply to an Other Covered Person
as if such individual was an Executive Officer during the relevant periods described in Section 3.0.

The Compensation Committee or the Board may, in its discretion, limit recovery of Erroneously Awarded Compensation from an
Other  Covered  Person  to  situations  in  which  an Accounting  Restatement  was  caused  or  contributed  to  by  the  Other  Covered
Person’s fraud, willful misconduct or gross negligence.

In  addition,  the  Compensation  Committee  or  the  Board  shall  have  discretion  as  to  (i)  whether  to  seek  to  recover  Erroneously
Awarded  Compensation  from  an  Other  Covered  Person,  (ii)  the  amount  of  the  Erroneously  Awarded  Compensation  to  be
recovered from an Other Covered Person, and (iii) the method of recovering any such Erroneously Awarded Compensation from
an Other Covered Person. In exercising such discretion, the Compensation Committee or the Board may take into account such
considerations as it deems appropriate, including whether the assertion of a claim may violate applicable law or prejudice the
interests of the Company in any related proceeding or investigation.

5.0

Interpretation; Enforcement.

5.1

5.2

The Compensation Committee shall have full authority to interpret and enforce this Policy to the fullest extent permitted by law.

Any  determination  by  the  Compensation  Committee  or  the  Board  with  respect  to  this  Policy  shall  be  final,  conclusive,  and
binding on all interested parties.

6.0

Non-Exclusivity.

6.1

6.2

Nothing  in  this  Policy  shall  be  viewed  as  limiting  the  right  of  the  Company  or  the  Compensation  Committee  to  pursue
recoupment under or as provided by the Company’s plans, awards, policies or agreements or the applicable provisions of any
law, rule or regulation (including, without limitation, Section 304 of the Sarbanes-Oxley Act of 2002).

If the requirement to recover Erroneously Awarded Compensation is triggered under this Policy, then, in the event of any actual
or alleged conflict between the provisions of this Policy and a similar clause or provision in any of the Company’s plans, awards,
policies  or  agreements,  this  Policy  shall  be  controlling  and  determinative;  provided  that,  if  such  other  plan,  award,  policy  or
agreement provides that a greater amount of compensation shall be subject to clawback, the provisions of such other plan, award,
policy or agreement shall apply to the amount in excess of the amount subject to clawback under this Policy.

-4-

7.0

Amendment.

7.1

The Compensation Committee may amend this Policy, provided that any such amendment does not cause this Policy to violate
applicable listing standards of Nasdaq or Rule 10D-1 under the Exchange Act.

-5-

APPENDIX A

Examples of Incentive-Based Compensation

Examples  of  compensation  that  constitutes  Incentive-Based  Compensation  for  purposes  of  this  Policy  include,  but  are  not  limited  to,  the
following:

●

●

●

●

●

Non-equity incentive plan awards earned based wholly or in part on satisfying a Financial Reporting Measure performance
goal;

Bonuses  paid  from  a  “bonus  pool,”  the  size  of  which  is  determined  based  wholly  or  in  part  on  satisfying  a  Financial
Reporting Measure performance goal;

Other cash awards based wholly or in part on satisfying a Financial Reporting Measure performance goal;

Restricted stock, restricted stock units, performance share units, stock options, and stock appreciation rights that are granted
or become vested based wholly or in part on satisfying a Financial Reporting Measure performance goal; and

Proceeds received upon the sale of shares acquired through an incentive plan that were granted or vested based wholly or in
part on satisfying a Financial Reporting Measure performance goal.

Examples of compensation that does not constitute Incentive-Based Compensation for purposes of this Policy include the following:

●

●

●

●

●

Salaries  (other  than  salary  increases  earned  wholly  or  in  part  based  on  the  attainment  of  a  Financial  Reporting  Measure
performance goal);

Bonuses paid solely at the discretion of the Compensation Committee or Board that are not paid from a bonus pool, the size
of which is determined based wholly or in part on satisfying a Financial Reporting Measure performance goal;

Bonuses paid solely upon satisfying one or more subjective standards (e.g., demonstrated leadership) and/or completion of a
specified employment period;

Non-equity  incentive  plan  awards  earned  solely  upon  satisfying  one  or  more  strategic  measures  (e.g.,  consummating  a
merger  or  divestiture)  or  operational  measures  (e.g.,  opening  a  specified  number  of  business  locations,  completion  of  a
project, or increase in market share); and

Equity awards for which the grant is not contingent upon achieving any Financial Reporting Measure performance goal and
vesting is contingent solely upon completion of a specified employment period and/or attaining one or more non-Financial
Reporting Measures.

-6-