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Eton Pharmaceuticals, Inc.

eton · NASDAQ Healthcare
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FY2023 Annual Report · Eton Pharmaceuticals, Inc.
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(Mark One)

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

For the fiscal year ended December 31, 2023

OR

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

FOR THE TRANSITION PERIOD FROM ______ TO ______

Commission File Number 001-38738

ETON PHARMACEUTICALS, INC.
(Exact name of registrant as specified in its charter)

Delaware
(State or other jurisdiction
of incorporation or organization)

21925 W. Field Parkway, Suite 235
Deer Park, IL
(Address of principal executive offices)

37-1858472
(I.R.S. Employer
Identification No.)

60010-7278
(Zip Code)

Registrant’s telephone number, including area code: (847) 787-7361

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

Title of each class
Common Stock, $0.001 par value

Trading Symbol
ETON

Name of each exchange on which registered
The Nasdaq Global Market LLC

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

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

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

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

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

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

Large accelerated filer
Non-accelerated filer

☐
☒

Accelerated filer
Smaller reporting company
Emerging growth company

☐
☒
☐

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with

any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate  by  check  mark  whether  the  registrant  has  filed  a  report  on  and  attestation  to  its  management’s  assessment  of  the  effectiveness  of  its
internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that
prepared or issued its audit report. ☐

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included

in the filing reflect the correction of an error to previously issued financial statements. ☐

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation

received by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b). ☐

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

The  aggregate  market  value  of  all  common  stock  (based  upon  the  closing  price  on  the  Nasdaq  Global  Market)  of  the  registrant  held  by  non-

affiliates as of June 30, 2023 was approximately $84.7 million.

As of March 5, 2024, the registrant had 25,688,062 shares of common stock, $0.001 par value per share, outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrant’s definitive proxy statement for its 2024 Annual Meeting of Stockholders, which the registrant intends to file pursuant to
Regulation  14A  with  the  Securities  and  Exchange  Commission  not  later  than  120  days  after  the  registrant’s  fiscal  year  ended  December  31,  2023,  are
incorporated by reference into Part III of this Annual Report on Form 10-K.

 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Business

Item 1.
Item 1A. Risk Factors
Item 1B. Unresolved Staff Comments
Item 1C. Cybersecurity
Item 2.
Item 3.
Item 4. Mine Safety Disclosures

Properties
Legal Proceedings

TABLE OF CONTENTS

PART I

PART II

Reserved

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities
Item 6.
Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations
Item 7A. Quantitative and Qualitative Disclosures About Market Risk
Item 8.

Financial Statements and Supplementary Data

Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

Item 9.
Item 9A. Controls and Procedures
Item 9B. Other Information
Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections

PART III

Item 10. Directors, Executive Officers and Corporate Governance
Item 11. Executive Compensation
Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
Item 13. Certain Relationships and Related Transactions, and Director Independence
Item 14. Principal Accountant Fees and Services

Item 15. Exhibits, Financial Statement Schedules
Item 16. Form 10-K Summary
Signatures

PART IV

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Note Regarding Forward-Looking Statements

This  Annual  Report  on  Form  10-K  and  the  information  incorporated  herein  by  reference  contain  forward-looking  statements  that  involve  a
number of risks and uncertainties, many of which are beyond our control. Although our forward-looking statements reflect the good faith judgment of our
management, these statements can only be based on facts and factors currently known by us. Consequently, these forward-looking statements are inherently
subject  to  risks  and  uncertainties,  and  actual  results  and  outcomes  may  differ  materially  from  results  and  outcomes  discussed  in  the  forward-looking
statements as a result of various factors, including those set forth below under the caption “Risk Factors.”

Forward-looking  statements  in  this  Annual  Report  and  in  our  other  reports  with  the  Securities  and  Exchange  Commission  (the  “SEC”),  for

example, may include statements regarding:

● our  ability  to  submit  our  product  candidates  through  the  505(b)(2)  regulatory  pathway  for  approval  by  the  U.S.  Food  and  Drug  Administration  (the

“FDA”);

● our ability to obtain FDA approval for our product candidates;

● our ability to comply with all U.S. and foreign regulations concerning the development, manufacture and sale of our product candidates;

● our ability to maintain, protect and enhance our intellectual property;

● costs associated with initiating and defending intellectual property infringement and other claims;

● future acquisitions of or investments in complementary companies or technologies; and

● our ability to comply with evolving legal standards and regulations, particularly concerning requirements for being a public company.

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In  some  cases,  you  can  identify  forward-looking  statements  by  terms  such  as  “anticipates,”  “believes,”  “continue,”  “could,”  “estimates,”
“expects,” “hopes,” “intends,” “may,” “plan,” “potential,” “predicts,” “projects,” “seeks,” “should,” “will,”  “would”  or  the  negative  of  those  terms,  and
similar expressions that convey uncertainty of future events or outcomes. In addition, statements that “we believe” and similar statements reflect our beliefs
and  opinions  on  the  relevant  subject.  These  statements  include,  but  are  not  limited  to,  statements  under  the  captions  “Business,”  “Risk  Factors”  and
“Management’s Discussion and Analysis of Financial Condition and Results of Operations,” as well as other sections in this Annual Report on Form 10-K.
We discuss many of the risks associated with the forward-looking statements in this Annual Report on Form 10-K in greater detail under the heading “Risk
Factors.” Moreover, we operate in a very competitive and rapidly changing environment. New risks emerge from time to time. It is not possible for our
management to predict all risks, nor can we assess the impact of all factors on our business or the extent to which any factor, or combination of factors,
may  cause  actual  results  to  differ  materially  from  those  contained  in  any  forward-looking  statements  we  may  make.  You  should  be  aware  that  the
occurrence of any of the events discussed under the caption “Risk Factors” and elsewhere in this report could substantially harm our business, results of
operations and financial condition and that if any of these events occurs, the trading price of our common stock could decline and you could lose all or a
part of the value of your shares of our common stock.

The cautionary statements made in this report are intended to be applicable to all related forward-looking statements wherever they may appear
in this Annual Report on Form 10-K. We urge you not to place undue reliance on these forward-looking statements, which speak only as of the date of this
Annual Report on Form 10-K. For all 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.  Except  as  required  by  law,  we  assume  no  obligation  to  update  our  forward-looking  statements
publicly, or to update the reasons actual results could differ materially from those anticipated in any forward-looking statements, whether as a result of new
information, future events or otherwise.

This  Annual  Report  on  Form  10-K  also  contains  estimates,  projections  and  other  information  concerning  our  industry,  our  business,  and  the
markets for our product candidates, as well as data regarding market research, estimates and forecasts prepared by our management. Information that is
based  on  estimates,  forecasts,  projections,  market  research  or  similar  methodologies  is  inherently  subject  to  uncertainties,  and  actual  events  or
circumstances  may  differ  materially  from  events  and  circumstances  reflected  in  this  information.  Unless  otherwise  expressly  stated,  we  obtained  this
industry,  business,  market  and  other  data  from  reports,  research  surveys,  studies  and  similar  data  prepared  by  market  research  firms  and  other  third
parties, industry, medical and general publications, government data and similar sources. As used in this Annual Report on Form 10-K, unless the context
indicates or otherwise requires, “Eton,” “our company,” “we,” “us,” and “our” refer to Eton Pharmaceuticals, Inc., a Delaware corporation.

You should read the following together with the more detailed information regarding our company, our common stock and our financial statements
and  notes  to  those  statements  appearing  elsewhere  in  this  report  or  incorporated  by  reference.  The  SEC  allows  us  to  “incorporate  by  reference”
information that we file with the SEC, which means that we can disclose important information to you by referring you to those documents. The information
incorporated by reference is considered to be part of this report.

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Item 1. Business

About Eton

PART I

Eton is an innovative pharmaceutical company focused on developing and commercializing treatments for rare diseases. The Company currently
has four commercial rare disease products, ALKINDI SPRINKLE® for the treatment of adrenocortical insufficiency; Carglumic Acid for the treatment of
hyperammonemia due to N-acetylglutamate synthase (“NAGS”) deficiency; Betaine Anhydrous for the treatment of homocystinuria; and Nitisinone for the
treatment of hereditary tyrosinemia type 1 (HT-1). The Company has three additional product candidates in late-stage development: ET-400, ET-600, and
ZENEO® hydrocortisone autoinjector.

ALKINDI SPRINKLE® (hydrocortisone granules) – This product was approved by the FDA in September 2020 as a replacement therapy for
Adrenocortical Insufficiency (“AI”) in children under 17 years of age. The product is the first and only FDA-approved granule hydrocortisone
formulation designed to help provide accurate dosing for newborns and children with adrenal insufficiency. We acquired U.S. marketing rights to
the product in March 2020 and launched ALKINDI SPRINKLE® in December 2020 with a sales force targeting pediatric endocrinologists. We
believe there are approximately 10,000 children currently suffering from AI in the United States. ALKINDI SPRINKLE® is protected by three
issued patents that extend to 2034.

Carglumic  Acid  tablets  –  Our  Carglumic  Acid  product  is  an  FDA-approved  generic  version  of  Carbaglu®.  Our  product  is  approved  for  the
treatment  of  acute  and  chronic  hyperammonemia  due  to  NAGS  deficiency.  We  acquired  marketing  rights  to  the  product  in  October  2021  and
launched the product in December 2021. We promote the product with our internal sales force.

Betaine Anhydrous for Oral Solution – Our Betaine Anhydrous product is an FDA-approved generic version of Cystadane® for the treatment of
homocystinuria, a rare inherited condition that is estimated to impact fewer than 2,000 patients in the United States. We acquired the product in
September 2022 and launched the product in May 2023.

Nitisinone  –  Our  Nitisinone  product  is  an  FDA-approved  generic  version  of  Orfadin®  for  the  treatment  of  tyrosinemia  type  1,  an  ultra-rare
inherited condition that is estimated to impact fewer than 500 patients in the United States. We acquired the product in October 2023 and launched
the product in February 2024.

ET-400 – Eton expects to submit a new drug application for the product during 2024, which could allow for an approval and launch of the product
in 2025.

ET-600 – Eton expects to submit a new drug application for the diabetes insipidus product during 2025, which could allow for an approval and
launch of the product in early 2026.

ZENEO® Hydrocortisone Autoinjector – Our ZENEO® hydrocortisone autoinjector product candidate is a proprietary needle-free autoinjector
under  development  for  the  treatment  of  adrenal  crisis. We  expect  to  submit  a  New  Drug  Application  (“NDA”)  for  the  product  in  2025,  which
could allow for FDA approval in 2026.

Product

Carglumic Acid Tablets
ALKINDI SPRINKLE®
Betaine Anhydrous
Nitisinone

ET-400

ET-600

Eton Pharmaceuticals
Products Summary

Eton Category
Metabolic
Endocrinology
Metabolic
Metabolic

Indication

NAGS deficiency  
Adrenal Insufficiency  
Homocystinuria
Tyrosinemia Type 1  

Pending

Pending

Endocrinology

Diabetes Insipidus  

ZENEO® Hydrocortisone

Endocrinology

Adrenal Crisis

3

FDA Status
Commercial
Commercial
Commercial
Commercial
Submission Expected in
2024
Submission Expected in
2025
Submission Expected in
2025

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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Goals and Strengths

Our goal is to become a leading profitable pharmaceutical company focused on developing and commercializing treatments for rare diseases. We
believe  we  are  unique  in  the  pharmaceutical  industry  in  our  ability  to  identify,  acquire,  and  advance  products  through  the  development  and  regulatory
process. Our biggest competitive strengths are:

● Business  development  experience  –  our  ability  to  identify  and  execute  transactions  on  under-appreciated  development  assets.  Our  team  has
completed  over  150  business  development  transactions  throughout  their  careers  and  their  industry  connections  and  track  record  provide  the
company with proprietary deal flow. We typically avoid participating in broker led transactions of auction processes.

● Regulatory expertise – our knowledge and experience in gaining FDA approval, and particularly our knowledge within the 505(b)(2) regulatory
pathway, provides drug sponsors with the opportunity to leverage existing data or literature to drastically expedite drug development timelines and
reduce investment.

●

Established commercial operations – our sales and marketing teams have developed strong relationships with healthcare professionals and patient
advocacy groups in multiple therapeutic areas. These relationships allow us to commercialize new products quickly and effectively.

Sales and Marketing

We currently commercialize four orphan products under our own label with our internal infrastructure and sales force. We market and sell our
ALKINDI  SPRINKLE®,  Carglumic  Acid,  Betaine  Anhydrous,  and  Nitisinone  in  the  United  States  consistent  with  applicable  laws.  These  products  are
distributed to patients via specialty pharmacies, which support customer service and reimbursement activities.

Research and Development

We  currently  have  nine  employees  that  support  our  product  research  and  development  (“R&D”)  priorities  and  strategy.  In  addition,  we  utilize
external sources for various product development activities, including the resources of our product development partners for certain product candidates and
through the use of contract laboratory services on a fee for service model. Our R&D priorities include:

● developing, manufacturing and delivering a pipeline of innovative products to patients living with rare diseases;

● advancing our capabilities that can position us for long-term R&D leadership; and

●

pursuing multiple development pathways through acquisitions, joint ventures, partnerships, and product licensing with creativity, flexibility and
urgency to deliver innovative products to patients as quickly as possible.

Manufacturing and Suppliers

We  rely  on  third-party  contract  manufacturing  organizations  (“CMOs”)  to  manufacture  our  products.  The  majority  of  our  finished  product
manufacturing partners are based in the United States or Europe. We seek to work with CMOs that have a long history of quality and FDA compliance. All
products are manufactured in compliance with current Good Manufacturing Processes (“GMP”), and our internal quality system requires us to enter quality
agreements with and audit all of our manufacturers prior to commercializing the product. Our choice to rely on external manufacturers significantly reduces
the amount of capital invested in our business and allows us the flexibility to pursue a broad range of opportunities beyond the specific capabilities of a
single facility.

Intellectual Property

Our success depends in part on our ability to obtain patents, to protect trade secrets, to operate without infringing upon the proprietary rights of
others and to prevent others from infringing on our proprietary rights. Our policy is to seek to protect our proprietary position by, among other methods,
filing U.S. and foreign patent applications related to our proprietary technology, inventions and improvements that are important to the development of our
business.  We  also  rely  on  our  trade  secrets,  know-how  and  continuing  technological  innovation  to  develop  and  maintain  our  proprietary  position.  We
vigorously  defend  our  intellectual  property  to  preserve  our  rights  and  gain  the  benefit  of  our  technological  investments.  Our  business  is  not  dependent,
however, upon any single patent, trademark, or contract.

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ALKINDI SPRINKLE® is protected by three issued patents that extend to 2034. ET-400 is protected by an issued patent that extends to 2043, and
there are additional patent applications related to this product and ET-600 under review with the U.S. Patent and Trademark Office (“USPTO”). In June
2021, we acquired U.S. marketing rights from Crossject to the ZENEO® hydrocortisone autoinjector. We intend to seek patent protection on our internally
developed products as circumstances warrant.

Government Regulation

The  FDA  and  comparable  regulatory  agencies  in  federal,  state  and  local  jurisdictions  impose  substantial  requirements  upon  the  development,
manufacture, and marketing of pharmaceutical products. These agencies regulate the research, testing, manufacture, quality, control, storage, distribution,
marketing  and  sale  of  our  pharmaceutical  products.  Additionally,  in  the  United  States,  we  must  follow  rules  and  regulations  established  by  the  FDA
requiring the presentation of data indicating that our products are safe and efficacious and are manufactured in accordance with GMP regulations. If we do
not comply with applicable requirements, we may be fined, the government may refuse to approve our marketing applications or allow us to manufacture
or  market  our  products,  and  we  may  be  criminally  prosecuted.  We,  and  our  manufacturers  and  contract  research  organizations  (“CROs”),  may  also  be
subject  to  regulations  under  other  foreign,  federal,  state  and  local  laws,  including,  but  not  limited  to,  the  U.S.  Occupational  Safety  and  Health  Act,  the
Resource  Conservation  and  Recovery  Act,  the  Clean  Air  Act  and  import,  export  and  customs  regulations  as  well  as  the  laws  and  regulations  of  other
countries.  The  U.S.  government  has  increased  its  enforcement  activity  regarding  marketing  practices  domestically  and  internationally.  As  a  result,
pharmaceutical companies must ensure their compliance with the Foreign Corrupt Practices Act and federal healthcare fraud and abuse laws, including the
False Claims Act.

FDA Market Approval Process

The steps required to be taken before a new drug may be marketed in the United States generally include:

● completion of pre-clinical laboratory and animal testing under current good laboratory practices;

● completion of required chemistry, manufacturing and controls testing;

● submission  to  the  FDA  of  an  Investigational  New  Drug  (“IND”)  application,  which  must  be  evaluated  and  found  acceptable  by  the  FDA

before human clinical trials may commence;

● performance of adequate and well-controlled human clinical trials to establish the safety, pharmacokinetics and efficacy of the proposed drug

for its intended use;

● approval by an independent institutional review board (“IRB”) or ethics committee before each human clinical trial may be initiated;

● submission and approval of an NDA by the FDA; and

● compliance with any post-approval requirements, including agreement with FDA of the language on the package insert.

The  testing  and  approval  process  require  substantial  time,  effort,  and  financial  resources,  and  we  cannot  be  certain  that  any  approval  will  be
granted on a timely basis, if at all. Preclinical development of a drug candidate can take several years to complete, with no guarantee that an IND based on
those studies will become effective to even permit clinical testing to begin. Even though several of our pharmaceutical product candidates utilize active
drug ingredients that are commercially marketed in the United States in other dosage forms, we need to establish safety and effectiveness of those active
ingredients in the formulation and dosage forms that we are developing.

Clinical  studies  are  conducted  under  protocols  detailing,  among  other  things,  the  objectives  of  the  study,  what  types  of  patients  may  enter  the
study, schedules of tests and procedures, drugs, dosages, and length of study, as well as the parameters to be used in monitoring safety, and the efficacy
criteria  to  be  evaluated.  A  protocol  for  each  clinical  study  and  any  subsequent  protocol  amendments  must  be  submitted  to  the  FDA  as  part  of  the  IND
process.

Clinical trials are usually conducted in three phases. Phase 1 clinical trials are conducted in small groups of healthy volunteers to assess safety of
various dosing regimens and pharmacokinetics. After a safe dose has been established, in Phase 2 clinical trials the drug is administered to a limited patient
population with the target disease or condition to identify possible adverse events and safety risks, to conduct a preliminary evaluation of the efficacy of the
product  candidate  in  treating  the  targeted  disease  or  condition.  Phase  3  clinical  trials  are  usually  multi-center,  double-blind  controlled  trials  in  larger
numbers of subjects to assess as fully as possible both the safety and effectiveness of the drug, establish the overall risk-benefit of the product candidate,
and provide adequate information for the labeling of the product.

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Clinical trials must be conducted in accordance with the FDA’s current Good Clinical Practices (“GCP”) requirements. The FDA may order the
temporary or permanent discontinuation of a clinical study at any time or impose other sanctions if it believes that the clinical study is not being conducted
in accordance with FDA requirements or that the participants are being exposed to an unacceptable health risk. An IRB generally must approve the clinical
trial design and patient informed consent at study sites that the IRB oversees and may halt a study, either temporarily or permanently, for failure to comply
with the IRB’s requirements, or may impose other conditions. Additionally, some clinical studies are overseen by an independent group of qualified experts
organized by the clinical study sponsor, known as a data safety monitoring board or committee. This group recommends whether or not a trial may move
forward at designated checkpoints based on access to certain data from the study. The clinical study sponsor may also suspend or terminate a clinical trial
based on evolving business objectives and/or competitive climate.

As a product candidate moves through the clinical testing phases, manufacturing processes are further defined, refined, controlled, and validated.
The level of control and validation required by the FDA increases as clinical studies progress. We and the third-party manufacturers on which we rely for
the  manufacture  of  our  product  candidates  and  their  respective  components  (including  the  active  pharmaceutical  ingredient  (“API”))  are  subject  to
requirements  that  drugs  be  manufactured,  packaged,  and  labeled  in  conformity  with  GMP.  To  comply  with  GMP  requirements,  manufacturers  must
continue to spend time, money, and effort to meet requirements relating to personnel, facilities, equipment, production and process, labeling and packaging,
quality control, recordkeeping, and other requirements.

After completion of all required testing in accordance with all applicable regulatory requirements, detailed information on the product candidate is
submitted to the FDA in the form of an NDA, requesting approval to market the product for one or more indications, together with payment of a user fee,
unless waived. An NDA includes all relevant data available from pertinent nonclinical and clinical studies, including negative or ambiguous results as well
as  positive  findings,  together  with  detailed  information  on  the  chemistry,  manufacture,  controls,  and  proposed  labeling,  among  other  things.  To  support
marketing  approval,  the  data  submitted  must  be  sufficient  in  quality  and  quantity  to  establish  the  safety  and  efficacy  of  the  product  candidate  for  its
intended use to the satisfaction of the FDA.

If  an  NDA  submission  is  accepted  for  filing,  the  FDA  begins  an  in-depth  review  of  the  NDA.  Under  the  Prescription  Drug  User  Fee  Act
(“PDUFA”) the FDA’s goal is to complete its initial review and respond to the applicant within ten months of submission, unless the application relates to
an unmet medical need, or is for a serious or life-threatening indication, in which case the goal may be within six months of NDA submission. However,
the review process and the target response date under PDUFA may be extended if the FDA requests or the NDA sponsor otherwise provides additional
information or clarification regarding information already provided in the NDA. During its review of an NDA, the FDA may refer the application to an
advisory  committee  for  review,  evaluation,  and  recommendation  as  to  whether  the  application  should  be  approved.  The  FDA  is  not  bound  by  the
recommendation of the advisory committee, but it typically follows such recommendations. Data from clinical studies are not always conclusive and the
FDA and/or any advisory committee it appoints may interpret data differently than the applicant.

After  the  FDA  evaluates  the  NDA  and  inspects  manufacturing  facilities  where  the  drug  product  and/or  its  API  will  be  produced,  it  will  either
approve  commercial  marketing  of  the  drug  product  with  prescribing  information  for  specific  indications  or  issue  a  Complete  Response  Letter  (“CRL”)
indicating that the application is not ready for approval and stating the conditions that must be met in order to secure approval of the NDA. If the CRL
requires additional data and the applicant subsequently submits that data, the FDA nevertheless may ultimately decide that the NDA does not satisfy its
criteria for approval. The FDA could also approve the NDA with a Risk Evaluation and Mitigation Strategies (“REMS”) plan to mitigate risks, which could
include medication guides, physician communication plans, or elements to assure safe use, such as restricted distribution methods, patient registries, and
other  risk  minimization  tools.  The  FDA  also  may  condition  approval  on,  among  other  things,  changes  to  proposed  labeling,  development  of  adequate
controls  and  specifications,  or  a  commitment  to  conduct  post-marketing  testing.  Such  post-marketing  testing  may  include  Phase  4  clinical  trials  and
surveillance to further assess and monitor the product’s safety and efficacy after approval.

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If the FDA approves one of our product candidates, we will be required to comply with post-approval regulatory requirements, including record-
keeping requirements and reporting of adverse reactions and production problems, and updated safety and efficacy information. Also, quality control and
manufacturing  procedures  must  continue  to  conform  to  GMP  after  approval,  and  the  FDA  periodically  inspects  manufacturing  facilities  to  assess
compliance  with  GMP,  which  imposes  extensive  procedural,  substantive  and  record-keeping  requirements.  If  we  seek  to  make  certain  changes  to  an
approved product, such as certain manufacturing changes, we will need FDA review and approval before the change can be implemented. For example, if
we change the manufacturer of a product or our API, the FDA may require stability or other data from the new manufacturer. Such data will take time and
are costly to generate, and the delay associated with generating these data may cause interruptions in our ability to meet commercial demand, if any. While
physicians may use products for indications that have not been approved by the FDA, we may not label or promote the product for an indication that has
not been approved. Securing FDA approval for new indications is similar to the process for approval of the original indication and requires, among other
things, submitting data from adequate and well-controlled studies that demonstrate the product’s safety and efficacy in the new indication. Even if such
studies are conducted, the FDA may not approve any change in a timely fashion, or at all.

The FDA may also require post-marketing testing or Phase 4 testing, as well as risk minimization action plans and surveillance to monitor the

effects of an approved product or place conditions on an approval that could otherwise restrict the distribution or use of the product.

Section 505(b)(2) New Drug Applications

We intend to submit applications for certain product candidates via the 505(b)(2) regulatory pathway. As an alternate path for FDA approval of
new  indications  or  new  formulations  of  previously  approved  products,  a  company  may  submit  a  Section  505(b)(2)  NDA,  instead  of  a  “stand-alone”  or
“full” NDA. Section 505(b)(2) of the Federal Food, Drug and Cosmetic Act (“FDCA”) was enacted as part of the Drug Price Competition and Patent Term
Restoration Act of 1984, otherwise known as the Hatch-Waxman Amendments. Section 505(b)(2) permits the submission of an NDA where at least some
of the information required for approval comes from studies not conducted by or for the applicant and for which the applicant has not obtained a right of
reference. Some examples of products that may be allowed to follow a 505(b)(2) path to approval are drugs that have a new dosage form, strength, route of
administration, formulation, or indication.

The  Hatch-Waxman  Amendments  permit  applicants  to  rely  upon  certain  published  nonclinical  or  clinical  studies  conducted  for  an  approved
product or the FDA’s conclusions from prior review of such studies. The FDA may require companies to perform additional studies or measurements to
support  any  changes  from  the  approved  product.  The  FDA  may  then  approve  the  new  product  for  all  or  some  of  the  labeled  indications  for  which  the
reference product has been approved, as well as for any new indication supported by the Section 505(b)(2) application. While references to nonclinical and
clinical data not generated by the applicant or for which the applicant does not have a right of reference are allowed, all development, process, stability,
qualification, and validation data related to the manufacturing and quality of the new product must be included in an NDA submitted under Section 505(b)
(2).

To  the  extent  that  the  Section  505(b)(2)  applicant  is  relying  on  the  FDA’s  conclusions  regarding  studies  conducted  for  an  already  approved
product,  the  applicant  must  provide  the  patent  number  and  certify  to  the  FDA  in  its  opinion  and  to  the  best  of  its  knowledge,  one  of  the  following
circumstances: (i) the required patent information has not been filed; (ii) the listed patent has expired; (iii) the listed patent has not expired, but will expire
on a particular date and approval is sought after patent expiration; or (iv) the listed patent is invalid or will not be infringed by the new product. The Section
505(b)(2) application also will not be approved until any non-patent exclusivity, such as exclusivity for obtaining approval of a new chemical entity, listed
in the Orange Book for the reference product has expired. If the Orange Book certifications outlined above are not accomplished, the Section 505(b)(2)
applicant may invest a significant amount of time and expense in the development of its products only to be subject to significant delay and patent litigation
before its products may be commercialized.

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Section 505(j) Abbreviated New Drug Applications

The 505(j) pathway is used for product candidates that are therapeutically equivalent to an approved product. The underlying premise of the 505(j)
pathway is that a product candidate classified as therapeutically equivalent can be substituted for the approved product with the full expectation that the
substituted  product  will  produce  the  same  clinical  effect  and  safety  profile  as  the  approved  product  when  administered  under  the  same  conditions.  A
product  candidate  utilizing  the  505(j)  pathway  requires  an  abbreviated  new  drug  application,  (“ANDA”),  which  relies  on  the  FDA’s  finding  that  the
previously approved drug candidate is safe and effective. An ANDA generally must contain information to show that the product candidate is the same as
the  approved  product  with  respect  to  API,  conditions  of  use,  route  of  administration,  dosage  form,  strength,  and  labeling,  with  certain  permissible
differences, and is the bioequivalent of the approved drug. The 505(j) pathway typically requires no clinical testing other than a bioequivalence trial. While
the  505(j)  pathway  is  typically  shorter  and  less  expensive  than  the  505(b)(2)  pathway,  the  505(b)(2)  pathway  allows  greater  flexibility  as  to  the
characteristics of the product candidate.

Other U.S. Healthcare Laws and Compliance Requirements

Products distributed in the United States are also subject to additional healthcare regulation and enforcement by the federal government and the

states in which we conduct our business. Applicable federal and state healthcare laws and regulations include the following:

● The  U.S.  Anti-Kickback  Statute  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 either the referral of an individual for, or the purchase,
order,  lease,  or  recommendation  of,  any  good  or  service,  for  which  payment  may  be  made  under  federal  healthcare  programs  such  as
Medicare and Medicaid;

● The  federal  civil  and  criminal  false  claims  laws,  including  the  U.S.  False  Claims  Act,  can  be  enforced  by  individuals,  on  behalf  of  the
government,  through  civil  whistleblower  or  qui  tam  actions,  and  the  civil  monetary  penalties  law,  prohibits  individuals  or  entities  from,
among  other  things,  knowingly  presenting,  or  causing  to  be  presented,  to  the  federal  government  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  Health  Insurance  Portability  and  Accountability  Act  of  1996  (“HIPAA”),  which  prohibits,  among  other  things,  executing  a  scheme  to
defraud any healthcare benefit program, including private third-party payors, and knowingly and willfully falsifying, concealing or covering
up  a  material  fact  or  making  any  materially  false,  fictitious,  or  fraudulent  statement  in  connection  with  the  delivery  of  or  payment  for
healthcare benefits, items, or services;

●

HIPAA,  as  amended  by  the  Health  Information  Technology  for  Economic  and  Clinical  Health  Act,  and  their  implementing  regulations,
imposes  obligations,  including  mandatory  contractual  terms,  with  respect  to  safeguarding  the  privacy,  security  and  transmission  of
individually identifiable health information; and

● Analogous state laws and regulations, such as state anti-kickback and false claims laws, 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 laws that
require pharmaceutical companies to comply with the pharmaceutical industry’s voluntary compliance guidelines and the relevant compliance
guidance  promulgated  by  the  federal  government;  state  and  local  laws  that  require  drug  manufacturers  to  report  information  related  to
payments  and  other  transfers  of  value  to  physicians  and  other  healthcare  providers  or  marketing  expenditures;  state  laws  that  require  the
reporting  of  information  related  to  drug  pricing;  state  and  local  laws  requiring  the  registration  of  pharmaceutical  sales  and  medical
representatives;  and  state  and  foreign  laws,  such  as  the  General  Data  Protection  Regulation  (EU)  2016/679,  governing  the  privacy  and
security of health information in some circumstances, many of which differ from each other in significant ways and often are not preempted
by HIPAA, thus complicating compliance efforts.

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Because of the breadth of these laws and the narrowness of available statutory exceptions and regulatory safe harbors, it is possible that some of
our business activities could be subject to challenge under one or more of such laws. If our operations are found to be in violation of any of the federal or
state laws described above or any other governmental regulations that apply to us, we may be subject to penalties, including significant criminal, civil, and
administrative penalties, damages, fines, disgorgement, imprisonment, exclusion from participation in government healthcare programs, integrity oversight
and reporting obligations to resolve allegations of non-compliance with these laws, and the curtailment or restructuring of our operations.

Reimbursement

Sales of our products in the United States may depend, in part, on the extent to which the costs of the products will be covered and reimbursed by
third-party  payors,  such  as  government  health  programs,  commercial  insurance  and  managed  health  care  organizations.  These  third-party  payors  are
increasingly challenging the prices charged for medical products and services. Additionally, the containment of health care costs has become a priority of
federal  and  state  governments,  and  the  prices  of  drugs  have  been  a  focus  in  this  effort.  The  United  States  government,  state  legislatures  and  foreign
governments  have  shown  significant  interest  in  implementing  cost-containment  programs,  including  price  controls,  restrictions  on  reimbursement  and
requirements for substitution of generic products. Adoption of price controls and cost-containment measures, and adoption of more restrictive policies in
jurisdictions with existing controls and measures, could further limit our net revenue and results. If these third-party payors do not consider our products to
be cost-effective compared to other available therapies, they may not cover our products after approval as a benefit under their plans or, if they do, the level
of payment may not be sufficient to allow us to sell our products on a profitable basis.

The Medicare Prescription Drug, Improvement, and Modernization Act of 2003, (the “MMA”), imposed new requirements for the distribution and
pricing of prescription drugs for Medicare beneficiaries and included a major expansion of the prescription drug benefit under Medicare Part D. Under Part
D, Medicare beneficiaries may enroll in prescription drug plans offered by private entities which will provide coverage of outpatient prescription drugs.
Part D plans include both stand-alone prescription drug benefit plans and prescription drug coverage as a supplement to Medicare Advantage plans. Unlike
Medicare Parts A and B, Part D coverage is not standardized. Part D prescription drug plan sponsors are not required to pay for all covered Part D drugs,
and each drug plan can develop its own drug formulary that identifies which drugs it will cover and at what tier or level. However, Part D prescription drug
formularies must include drugs within each therapeutic category and class of covered Part D drugs, though not necessarily all the drugs in each category or
class. Any formulary used by a Part D prescription drug plan must be developed and reviewed by a pharmacy and therapeutic committee. Government
payment for some of the costs of prescription drugs may increase demand for products for which we receive marketing approval. However, any negotiated
prices for our products covered by a Part D prescription drug plan will likely be lower than the prices we might otherwise obtain. Moreover, while the
MMA applies only to drug benefits for Medicare beneficiaries, private third-party payors often follow Medicare coverage policy and payment limitations in
setting  their  own  payment  rates.  Any  reduction  in  payment  that  results  from  the  MMA  may  result  in  a  similar  reduction  in  payments  from  non-
governmental payors.

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Decreases in third-party reimbursement for our products or a decision by a third-party payor to not cover our products could reduce physician

usage of the products and have a material adverse effect on our sales, results of operations and financial condition.

Healthcare Reform

In  the  United  States  and  some  foreign  jurisdictions,  there  have  been,  and  we  expect  there  will  continue  to  be,  a  number  of  legislative  and
regulatory  changes  to  the  health-care  system  that  could  prevent  or  delay  marketing  approval  pharmaceutical  products,  restrict  or  regulate  post-approval
activities  and  affect  our  ability  to  profitably  sell  our  product  candidates.  Among  policy  makers  and  payors  in  the  United  States  and  elsewhere,  there  is
significant  interest  in  promoting  changes  in  healthcare  systems  with  the  stated  goals  of  containing  healthcare  costs,  improving  quality  and  expanding
access. In the United States, the pharmaceutical industry has been a particular focus of these efforts and has been significantly affected by major legislative
initiatives.

In  March  2010,  then  President  Obama  signed  into  law  the  Patient  Protection  and  Affordable  Care  Act,  as  amended  by  the  Health  Care  and
Education Reconciliation Act (collectively, the “Health Care Reform Law”), which, among other things, imposed reporting requirements on manufacturers
related to drug samples and financial relationships with physicians and teaching hospitals, increased the minimum Medicaid rebates owed by manufacturers
under the Medicaid Drug Rebate Program, extended the rebate program to individuals enrolled in Medicaid managed care organizations, established annual
fees on manufacturers of certain branded prescription drugs, and established a Medicare Part D coverage gap discount program.

Some of the provisions of the Health Care Reform Law have yet to be implemented, and there have been judicial and Congressional challenges to
certain aspects of the Health Care Reform Law. In addition, Congress has considered legislation that would repeal or repeal and replace all or part of the
Health Care Reform Law. While Congress has not passed comprehensive repeal legislation, two bills affecting the implementation of certain taxes under
the Health Care Reform Law have been signed into law and became effective in January 2019. The Tax Cuts and Jobs Act of 2017 (the “Tax Act”) included
a  provision  which  repealed  the  tax-based  shared  responsibility  payment  imposed  by  the  Health  Care  Reform  Law  on  certain  individuals  who  fail  to
maintain qualifying health coverage for all or part of a year that is commonly referred to as the “individual mandate.” The Bipartisan Budget Act of 2018,
among  other  things,  amended  the  Health  Care  Reform  Law  to  increase  from  50  percent  to  70  percent  the  point-of-sale  discount  that  is  owed  by
pharmaceutical manufacturers who participate in Medicare Part D and to close the coverage gap in most Medicare drug plans, commonly referred to as the
“donut hole”.

In  addition,  other  legislative  changes  have  been  proposed  and  adopted  in  the  United  States  since  the  Health  Care  Reform  Law  was  enacted,

including:

●   In  August  2011,  President  Obama  signed  into  law  the  Budget  Control  Act  of  2011,  which,  among  other  things,  created  the  Joint  Select
Committee on Deficit Reduction to recommend to Congress proposals for deficit reduction of at least $1.2 trillion for the years 2013 through 2021.
The Joint Select Committee on Deficit Reduction did not achieve a targeted deficit reduction, which triggered the legislation’s automatic reduction to
several  government  programs.  This  includes  aggregate  reductions  to  Medicare  payments  to  providers  of,  up  to  2%  per  fiscal  year,  and,  due  to
subsequent legislative amendments, will remain in effect through 2030 unless Congress takes additional action. These reductions went into effect in
April  2013  and,  due  to  subsequent  legislative  amendments  to  the  statute,  will  remain  in  effect  through  2030  unless  additional  action  is  taken  by
Congress.

● On April 13, 2017, CMS published a final rule that gives states greater flexibility in setting benchmarks for insurers in the individual and small
group marketplaces, which may have the effect of relaxing the essential health benefits required under the Health Care Reform Law for plans sold
through such marketplaces.

● On May 30, 2018, the Right to Try Act, was signed into law. The law, among other things, provides a federal framework for certain patients to
access certain investigational new drug products that have completed a Phase 1 clinical trial and that are undergoing investigation for FDA approval.
Under certain circumstances, eligible patients can seek treatment without enrolling in clinical trials and without obtaining FDA permission under the
FDA expanded access program. There is no obligation for a pharmaceutical manufacturer to make its drug products available to eligible patients as a
result of the Right to Try Act.

● On May 23, 2019, CMS published a final rule to allow Medicare Advantage Plans the option of using step therapy for Part B drugs beginning

January 1, 2020.

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Further,  there  has  been  heightened  governmental  scrutiny  in  the  United  States  of  pharmaceutical  pricing  practices  in  light  of  the  rising  cost  of
prescription  drugs  and  biologics.  Such  scrutiny  has  resulted  in  several  recent  U.S.  Congressional  Inquiries  and  proposed  and  enacted  federal  and  state
legislation designed to, among other things, bring more transparency to product pricing, reduce the cost of prescription drugs under Medicare, review the
relationship between pricing and manufacturer and patient programs, and reform government program reimbursement methodologies for products. In July
2021,  President  Biden  signed  an  Executive  Order  affirming  the  administration’s  policy  to  (i)  support  legislative  reforms  that  would  lower  the  prices  of
prescription drug and biologics, including by allowing Medicare to negotiate drug prices, by imposing inflation caps, and, by supporting the development
and market entry of lower-cost generic drugs and biosimilars; and (ii) support the enactment of a public health insurance option. Among other things, the
Executive  Order  also  directs  the  U.S.  Department  of  Health  &  Human  Services  (“HHS”)  to  provide  a  report  on  actions  to  combat  excessive  pricing  of
prescription drugs, enhance the domestic drug supply chain, reduce the price that the Federal government pays for drugs, and address price gouging in the
industry;  and  directs  the  FDA  to  work  with  states  and  Indian  Tribes  that  propose  to  develop  section  804  Importation  Programs  in  accordance  with  the
Medicare  Prescription  Drug,  Improvement,  and  Modernization  Act  of  2003,  and  the  FDA’s  implementing  regulations.  The  FDA  released  such
implementing  regulations  on  September  24,  2020,  which  went  into  effect  on  November  30,  2020,  providing  guidance  for  states  to  build  and  submit
importation  plans  for  drugs  from  Canada.  On  September  25,  2020,  CMS  stated  drugs  imported  by  states  under  this  rule  will  not  be  eligible  for  federal
rebates  under  Section  1927  of  the  Social  Security  Act  and  manufacturers  would  not  report  these  drugs  for  “best  price”  or  Average  Manufacturer  Price
purposes. Since these drugs are not considered covered outpatient drugs, CMS further stated it will not publish a National Average Drug Acquisition Cost
for  these  drugs.  If  implemented,  importation  of  drugs  from  Canada  may  materially  and  adversely  affect  the  price  we  receive  for  any  of  our  product
candidates. Additionally, on November 30, 2020, HHS published a regulation removing safe harbor protection for price reductions from pharmaceutical
manufacturers to plan sponsors under Part D, either directly or through pharmacy benefit managers, unless the price reduction is required by law. The rule
also  creates  a  new  safe  harbor  for  price  reductions  reflected  at  the  point-of-sale,  as  well  as  a  safe  harbor  for  certain  fixed  fee  arrangements  between
pharmacy  benefit  managers  and  manufacturers.  Pursuant  to  court  order,  the  removal  and  addition  of  the  aforementioned  safe  harbors  were  delayed  and
recent legislation imposed a moratorium on implementation of the rule until January 1, 2032. Although a number of these and other proposed measures
may  require  authorization  through  additional  legislation  to  become  effective,  and  the  Biden  administration  may  reverse  or  otherwise  change  these
measures, both the Biden administration and Congress have indicated that they will continue to seek new legislative measures to control drug costs.

In August 2022, President Biden signed the Inflation Reduction Act (“IRA”) which provides for (i) the government to set or negotiate prices for
select high-cost Medicare Part D (beginning in 2026) and Medicare Part B drugs (beginning in 2028) that are more than nine years (for small-molecule
drugs) or 13 years (for biological products) from their FDA approval, (ii) manufacturers to pay a rebate for Medicare Part B and Part D drugs when prices
increase faster than inflation beginning in 2022 for Medicare Part D and 2023 for Medicare Part B drugs, and (iii) Medicare Part D redesign which replaces
the  current  coverage  gap  provisions  and  establishes  a  $2,000  cap  for  out-of-pocket  limits  costs  for  Medicare  beneficiaries  beginning  in  2025,  with
manufacturers being responsible for 10% of costs up to the $2,000 cap and 20% after that cap is reached. Implementation of the IRA is expected to be
carried out through upcoming actions by regulatory authorities, the outcome of which is uncertain.

In August 2023, the Biden Administration published the first ten medicines subject to the Medicare Drug Price Negotiation Program. In addition,
there will be a new Medicare manufacturer discount program agreement expected to be signed in March 2024 that will change our discounting obligations
for  all  medicines  in  Medicare,  with  few  exceptions,  beginning  in  2025.  The  Medicare  Drug  Price  Negotiation  Program  is  currently  subject  to  legal
challenges and therefore, the outcome of the Program remains uncertain. We continue to evaluate the impact of the IRA on our business, operations and
financial condition and results as the full effect of the IRA on our business and the pharmaceutical industry remains uncertain.

At the state level, legislatures have increasingly passed legislation and implemented regulations designed to control pharmaceutical and biological
product pricing, including price or patient reimbursement constraints, discounts, restrictions on certain product access and marketing cost disclosure and
transparency  measures,  and,  in  some  cases,  designed  to  encourage  importation  from  other  countries  and  bulk  purchasing.  We  expect  that  states  will
continue to seek cost cutting, which may focus on managed care capitation payments, supplemental rebates, and/or formulary management. 

We expect that the healthcare reform measures that have been adopted and may be adopted in the future, may result in more rigorous coverage
criteria  and  in  additional  downward  pressure  on  the  price  that  we  receive  for  any  approved  product  and  could  seriously  harm  our  future  revenues.  Any
reduction in reimbursement from Medicare or other government programs may result in a similar reduction in payments from private third-party payors.

There have been, and likely will continue to be, legislative and regulatory proposals at the foreign, federal, and state levels directed at broadening
the  availability  of  healthcare  and  containing  or  lowering  the  cost  of  healthcare.  The  implementation  of  cost  containment  measures  or  other  healthcare
reforms may prevent us from being able to generate revenue, attain profitability, or commercialize our product. Such reforms could have an adverse effect
on anticipated revenue from product candidates that we may successfully develop and for which we may obtain regulatory approval and may affect our
overall financial condition and ability to develop product candidates.

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Employees

We currently have 30 full-time employees, 9 of whom are engaged in research and development activities, 16 are engaged in sales and marketing
operations and 5 of whom are engaged in general corporate and strategy roles. We periodically utilize outside consultants on an as-needed basis, including
medical consultants.

Corporate and Other Information

We  were  incorporated  under  the  laws  of  the  state  of  Delaware  in  April  2017.  Our  principal  executive  offices  are  located  at  21925  W.  Field
Parkway, Suite 235, Deer Park, Illinois, 60010, and our telephone number is (847) 787-7361. Our corporate website address is www.etonpharma.com, to
which we regularly post copies of our press releases as well as links to reports we have filed with the SEC, which are available free of charge as soon as
reasonably practicable after being electronically filed with or furnished to the SEC. Interested persons can subscribe on our website to email alerts that are
sent automatically when we issue press releases, file reports with the SEC or post certain other information to our website. Information contained on or
accessible through our website is not a part of this Annual Report on Form 10-K or our other filings with the SEC.

We own two U.S. federal trademark applications and unregistered trademarks, including our company name. All other trademarks or trade names
referred to in this Annual Report are the property of their respective owners. Solely for convenience, the trademarks and trade names in this Annual Report
are referred to without the symbols ® and ™, but such references should not be construed as any indication that their respective owners will not assert, to
the fullest extent under applicable law, their rights thereto.

Risk Factors Summary

You should carefully consider the risks set forth in the section of this Annual Report of Form 10-K entitled “Risk Factors” beginning on page

14 of this Annual Report, including, but not limited to, the following:

  ● We may have significant research, regulatory and development expenses as we advance our product candidates.
  ● We may need to grow the size of our organization, and we may experience difficulties in managing this growth.
  ● If  product  liability  lawsuits  are  brought  against  us,  we  may  incur  substantial  liabilities  and  may  be  required  to  limit  commercialization  of  our

product candidates.

  ● We may acquire businesses or products, or form strategic alliances, in the future, and we may not realize the benefits of such acquisitions.
  ● We  rely  significantly  on  information  technology  and  any  failure,  inadequacy,  interruption  or  security  lapse  of  that  technology,  including  any

cybersecurity incidents, could harm our ability to operate our business effectively.

  ● Sales of counterfeits of any of our product candidates, as well as unauthorized sales of any of our product candidates, may have adverse effects on

our revenues, business and results of operations and damage our brand and reputation.

  ● We  have  entered  into  several  arrangements  with  related  parties  for  the  development  and  marketing  of  certain  product  candidates  and  these

arrangements present potential conflicts of interest.

  ● We face competition from other biotechnology and pharmaceutical companies and our operating results will suffer if we fail to compete effectively.
  ● Our competitors may obtain FDA or other regulatory approval for comparable products more rapidly than we may obtain approval for ours, and the
risk of our competitors doing so may lead us to develop drug candidates without disclosing certain information with regard to such candidates.
  ● If we are not able to obtain regulatory approvals for our product candidates, we will not be able to commercialize our product candidate and our

ability to generate revenue will be limited.

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  ● If  the  FDA  concludes  that  our  product  candidates  do  not  satisfy  the  requirements  for  the  505(b)(2)  regulatory  approval  pathway,  or  if  the
requirements  for  approval  of  any  of  our  product  candidates  under  Section  505(b)(2)  are  not  as  we  expect,  the  approval  pathway  for  our  product
candidates will likely take significantly longer, cost significantly more and encounter significantly greater complications and risks than anticipated,
and in any case may not be successful.

  ● An  NDA  submitted  under  Section  505(b)(2)  subjects  us  to  the  risk  that  we  may  be  subject  to  a  patent  infringement  lawsuit  that  would  delay  or

prevent the review or approval of our product candidate.

  ● Even if we receive regulatory approval for any of our product candidates, we may not be able to successfully commercialize the product, and the

revenue that we generate from its sales, if any, may be limited.

  ● We are subject to ongoing obligations and continued regulatory review, which may result in significant additional expense. Additionally, our product
candidates  could  be  subject  to  labeling  and  other  restrictions  and  withdrawal  from  the  market,  and  we  may  be  subject  to  penalties  if  we  fail  to
comply with regulatory requirements or if we experience unanticipated problems with our product candidates.

  ● Significant additional labeling or warning requirements or limitations on the availability of our products may inhibit sales of affected products.
  ● Current and future legislation may increase the difficulty and cost for us to obtain marketing approval of and commercialize our product candidates

and affect the prices we may obtain.

  ● If we market any of our products or product candidates in a manner that violates health care fraud and abuse laws, or if we violate government price

reporting laws, we may be subject to civil or criminal penalties.

  ● We may not be able to establish agreements with third parties with whom we wish to collaborate and, if we are able to establish them, we may not
be able to establish them on commercially reasonable terms, which could result in alterations or delays of our development and commercialization
plans.

  ● We  expect  to  rely  on  third  parties  to  conduct  clinical  trials  for  our  product  candidates.  If  these  third  parties  do  not  successfully  carry  out  their
contractual duties or meet expected deadlines, we may not be able to obtain regulatory approval for or commercialize any of our product candidates
and our business would be substantially harmed.

  ● We  enter  into  various  contracts  in  the  normal  course  of  our  business,  some  or  all  of  which  may  require  us  to  indemnify  the  other  party  to  the
contract. In the event we have to perform under these indemnification provisions, it could have an adverse effect on our business, financial condition
and results of operations.

  ● Any termination or suspension of, or delays in the commencement or completion of, any necessary studies of any of our product candidates for any
indications could result in increased costs to us, delay or limit our ability to generate revenue and adversely affect our commercial prospects.
  ● Clinical drug development involves a lengthy and expensive process with an uncertain outcome, and results of earlier studies and trials may not be

predictive of future trial results.

  ● Third-party coverage and reimbursement and health care cost containment initiatives and treatment guidelines may constrain our future revenues.
  ● We are subject to extensive laws and regulations related to data privacy, and our failure to comply with these laws and regulations could harm our

business.

  ● We  will  depend  on  rights  to  certain  pharmaceutical  compounds  that  have  been  acquired  by  us.  We  do  not  have  complete  control  over  these

pharmaceutical compounds and any loss of our rights to them could prevent us from selling our products.

  ● It is difficult and costly to protect our intellectual property rights, and we cannot ensure the protection of these rights.
  ● Changes in either U.S. or foreign patent law or interpretation of such laws could diminish the value of patents in general, thereby impairing our

ability to protect our products.

  ● Our product candidates may infringe the intellectual property rights of others, which could increase our costs and delay or prevent our development

and commercialization efforts.

  ● Others may claim an ownership interest in our intellectual property, which could expose us to litigation and have an adverse effect on our prospects.
  ● We may be subject to claims that we have wrongfully hired an employee from a competitor or that we or our employees have wrongfully used or

disclosed alleged confidential information or trade secrets of their former employers.

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Item 1A. Risk Factors

We operate in a dynamic and rapidly changing environment that involves numerous risks and uncertainties. Certain factors may have a material adverse
effect on our business, financial condition and results of operations, and you should carefully consider them. Accordingly, in evaluating our business, we
encourage you to consider the following discussion of risk factors, in its entirety, in addition to other information contained in this Annual Report on Form
10-K and our other public filings with the SEC. Other events that we do not currently anticipate or that we currently deem immaterial may also affect our
results of operations and financial condition.

Risks Relating to Our Business

We may need to grow the size of our organization, and we could experience difficulties in managing this growth.

As  our  development  and  commercialization  plans  and  strategies  develop,  we  may  need  to  expand  the  size  of  our  employee  and
consultant/contractor  base.  Future  growth  would  impose  significant  added  responsibilities  on  members  of  management,  including  the  need  to  identify,
recruit, maintain, motivate and integrate additional employees. In addition, our management may have to divert a disproportionate amount of its attention
away from our day-to-day activities and devote a substantial amount of time to managing these growth activities. Our future financial performance and our
ability to commercialize our product candidates and any other future product candidates and our ability to compete effectively will depend, in part, on our
ability to effectively manage our future growth.

We focus on rare diseases, which may create additional risks and challenges, including that the target patient populations of our products and product
candidates may be small.

Because we focus on developing drugs as treatments for rare diseases, we may seek orphan drug, breakthrough therapy or fast track designations
for  our  product  candidates.  Often,  regulatory  authorities  have  broad  discretion  in  determining  whether  or  not  to  grant  such  designations.  We  cannot
guarantee that our product candidates will receive orphan drug status from the FDA or equivalent designations from other regulatory authorities. Even with
an orphan drug designation for our current and potential future product candidates, we may not be the first to obtain marketing approval for any particular
orphan indication due to the uncertainties associated with developing pharmaceutical products. Further, even if we obtain orphan drug exclusivity for an
existing or future product candidate, that exclusivity may not effectively protect the product from competition. 

We also cannot guarantee that we will receive breakthrough therapy, fast track, or equivalent designations, which provide certain potential benefits
such as more frequent meetings with the applicable regulatory authorities to discuss development plans, intensive guidance on efficient drug development
programs,  and  potential  eligibility  for  rolling  review  or  priority  review.  Even  if  we  are  successful  in  obtaining  any  such  designations  for  our  product
candidates,  such  designations  may  not  lead  to  faster  development  or  regulatory  review  or  approval  and  do  not  increase  the  likelihood  that  our  product
candidates will receive marketing approval. We may not be able to obtain or maintain these designations for our product candidates that receive them, and
our competitors may obtain these designations for their product candidates, which could impact our ability to develop and commercialize our products and
product candidates or compete with such competitors, which may adversely impact our business, financial condition or results of operations.

Given the small number of patients who have the diseases that we are targeting, it is critical to our ability to grow and become profitable that we
continue to successfully identify patients with these rare diseases. Our projections of both the number of people who have these diseases, as well as the
subset of people with these diseases who have the potential to benefit from treatment with our products and product candidates, are based on our beliefs and
estimates. These estimates have been derived from a variety of sources, including the scientific literature, surveys of clinics, patient foundations, or market
research, and may prove to be incorrect. Further, new studies may change the estimated incidence or prevalence of these diseases. The number of patients
may turn out to be lower than expected. Additionally, the potentially addressable patient population for each of our products and product candidates may be
limited or may not be amenable to treatment with our products and product candidates, and new patients may become increasingly difficult to identify or
access. Further, even if we obtain significant market share for our products and product candidates, because the potential target populations are small, we
may struggle to remain profitable or generate sufficient revenue growth to sustain our business.

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If product liability lawsuits are brought against us, we may incur substantial liabilities and may be required to limit commercialization of our product
candidates.

We face a potential risk of product liability as a result of the commercialization of our approved products and clinical testing of our new product
candidates and will face an even greater risk if we commercialize our current product candidates or any other future product. For example, we may be sued
if our approved products or any product we develop, including any of our product candidates, or any materials that we use in our products allegedly causes
injury  or  is  found  to  be  otherwise  unsuitable  during  product  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 and a breach of
warranties. In the United States, claims could also be asserted under state consumer protection acts. If we cannot successfully defend ourselves against
product liability claims, we may incur substantial liabilities or be required to limit commercialization of our product candidates. Even successful defense
would require significant financial and management resources. Regardless of the merits or eventual outcome, liability claims may result in:

● decreased demand for our current products or any of our product candidates or any future products that we may develop;

● injury to our reputation;

● withdrawal of clinical trial participants;

● costs to defend the related litigation;

● a diversion of management’s time and our resources;

● substantial monetary awards to trial participants or patients;

● product recalls, withdrawals or labeling, marketing or promotional restrictions;

● the inability to commercialize some or all of our product candidates; and

● a decline in the value of our stock.

We  carry  product  liability  insurance  we  consider  adequate  for  our  current  level  of  expected  product  sales,  clinical  testing  and  product
development.  Our  inability  to  obtain  and  retain  sufficient  product  liability  insurance  at  an  acceptable  cost  to  protect  against  potential  product  liability
claims could prevent or inhibit the commercialization of our approved products or additional products we develop. Although we will endeavor to obtain
and maintain such insurance in coverage amounts which we deem adequate, any claim that may be brought against us could result in a court judgment or
settlement in an amount that is not covered, in whole or in part, by our insurance or that is in excess of the limits of our insurance coverage. Our insurance
policies also have various exclusions, and we may be subject to a product liability claim for which we have no coverage. We may have to pay any amounts
awarded by a court or negotiated in a settlement that exceed our coverage limitations or that are not covered by our insurance, and we may not have, or be
able to obtain, sufficient capital to pay such amounts.

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We may acquire businesses or products, or form strategic alliances, in the future, and we may not realize the benefits of such acquisitions.

We  may  acquire  additional  businesses  or  products,  form  strategic  alliances  or  create  joint  ventures  with  third  parties  that  we  believe  will
complement or augment our existing business. If we acquire businesses with promising markets or technologies, we may not be able to realize the benefit
of  acquiring  such  businesses  if  we  are  unable  to  successfully  integrate  them  with  our  existing  operations  and  company  culture.  We  may  encounter
numerous difficulties in developing, manufacturing and marketing any new products resulting from a strategic alliance or acquisition that delay or prevent
us  from  realizing  their  expected  benefits  or  enhancing  our  business.  We  cannot  assure  you  that,  following  any  such  acquisition,  we  will  achieve  the
expected synergies to justify the transaction.

We  rely  significantly  on  information  technology  and  any  failure,  inadequacy,  interruption  or  security  lapse  of  that  technology,  including  any
cybersecurity incidents, could harm our ability to operate our business effectively.

Significant  disruptions  of  IT  systems  or  breaches  of  information  security  could  adversely  affect  our  business.  Despite  the  implementation  of
security measures, our internal computer systems and those of third parties with which we contract are vulnerable to damage from cyber attacks, computer
viruses, unauthorized access, natural disasters, terrorism, war and telecommunication and electrical failures. We rely on technology developed, supplied,
and/or maintained by third parties that may make us vulnerable to “supply chain” style cyber-attacks. System failures, accidents or security breaches could
cause  interruptions  in  our  operations,  and  result  in  a  material  disruption  of  our  product  development  and  clinical  activities  and  business  operations,  in
addition  to  possibly  requiring  substantial  expenditures  of  resources  to  remedy.  Cybersecurity  attacks  in  particular  are  evolving  and  include,  but  are  not
limited to, malicious software, attempts to gain unauthorized access to data and other electronic security breaches that could lead to disruptions in systems,
misappropriation  of  our  confidential  or  otherwise  protected  information  and  corruption  of  data.  The  loss,  theft  or  sabotage  of  product  development  or
clinical trial data 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  were  to  result  in  a  loss  of,  or  damage  to,  our  data  or  applications,  or  inappropriate  disclosure  of  confidential  or
proprietary  information,  we  could  incur  liability  and  our  development  programs  and  the  development  of  our  product  candidates  could  be  delayed.  Any
technology  service  interruption  or  breach  of  our  systems  could  adversely  affect  our  business  operations  and/or  result  in  the  loss  of  personal  data,
confidential information or intellectual property. Such incidents require disclosure to government authorities and/or regulators and any incident could result
in financial, legal, business and reputational harm to us. We maintain cyber liability insurance; however, this insurance may not be sufficient to cover the
financial, legal, business or reputational losses that may result from an interruption or breach of our systems.

Artificial  intelligence-based  software  is  increasingly  being  used  in  the  biopharmaceutical  and  healthcare  industries.  As  with  many  developing
technologies, artificial intelligence-based software presents risks and challenges. For example, algorithms may be flawed, data sets may be insufficient, of
poor  quality,  or  contain  biased  information;  and  inappropriate  or  controversial  data  practices  by  data  scientists,  engineers,  and  end-users  could  impair
results. If the analyses that artificial intelligence-based applications assist in producing are deficient or inaccurate, we could be subjected to competitive
harm,  potential  legal  liability  and  brand  or  reputational  harm.  Furthermore,  use  of  artificial  intelligence-based  software  may  lead  to  the  release  of
confidential information which may impact our ability to realize the benefits of our intellectual property.

Sales of counterfeits of any of our product candidates, as well as unauthorized sales of any of our product candidates, may have adverse effects on our
revenues, business and results of operations and damage our brand and reputation.

Our  current  approved  products  or  our  new  product  candidates  may  become  subject  to  competition  from  counterfeit  pharmaceutical  products,
which are pharmaceutical products sold under the same or very similar brand names and/or having a similar appearance to genuine products, but which are
sold without proper licenses or approvals. Such products divert sales from genuine products, often are of lower cost, often are of lower quality (having
different ingredients or formulations, for example), and have the potential to damage the reputation for quality and effectiveness of the genuine product.
Obtaining regulatory approval for our product candidates is a complex and lengthy process. If during the period while the regulatory approval is pending,
illegal sales of counterfeit products begin, consumers may buy such counterfeit products, which could have an adverse impact on our revenues, business
and results of operations. In addition, if illegal sales of counterfeits result in adverse side effects to consumers, we may be associated with any negative
publicity resulting from such incidents. Although pharmaceutical regulation, control and enforcement systems throughout the world have been increasingly
active  in  policing  counterfeit  pharmaceuticals,  we  may  not  be  able  to  prevent  third  parties  from  manufacturing,  selling  or  purporting  to  sell  counterfeit
products competing with our current products or our new product candidates. Such sales may also be occurring without our knowledge. The existence and
any  increase  in  production  or  sales  of  counterfeit  products  or  unauthorized  sales  could  negatively  impact  our  revenues,  brand  reputation,  business  and
results of operations.

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Risks Related to Product Development, Regulatory Approval, Manufacturing and Commercialization

We  depend  entirely  on  the  success  of  current  approved  products  and  our  new  product  candidates.  If  we  are  unable  to  generate  revenues  from  our
approved products and new product candidates, our ability to create stockholder value will be limited.

We may not be successful in obtaining acceptance from the FDA or comparable foreign regulatory authorities to start our clinical trials. If we do
not obtain such acceptance, the time in which we expect to commence clinical programs for any product candidate will be extended and such extension will
increase our expenses and increase our need for additional capital. Moreover, there is no guarantee that our clinical trials will be successful or that we will
continue clinical development in support of additional product approvals from the FDA or comparable foreign regulatory authorities for any indication. We
note that most product candidates never reach the clinical development stage and even those that do commence clinical development have only a small
chance  of  successfully  completing  clinical  development  and  gaining  regulatory  approval.  Therefore,  our  business  substantially  depends  entirely  on  the
successful development, regulatory approval and commercialization of our product candidates, which may never occur.

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

The  biotechnology  and  pharmaceutical  industries  are  intensely  competitive  and  subject  to  rapid  and  significant  technological  change.  We  have
existing competitors and potential new competitors in a number of jurisdictions, many of which have or will have substantially greater name recognition,
commercial infrastructures and financial, technical and personnel resources than we have. Established competitors may invest heavily to quickly discover
and  develop  novel  compounds  that  could  make  any  of  our  product  candidates  obsolete  or  uneconomical.  In  addition,  mergers  and  acquisitions  in  the
biotechnology and pharmaceutical industries may result in even more resources being concentrated among a smaller number of our competitors, potentially
reducing or eliminating our commercial opportunity. Furthermore, such potential competitors may enter the market before us, and their products may be
designed to circumvent our pending patent applications and any patents we may receive. They may also challenge, narrow or invalidate any granted patents
or our patent applications, and such patents and patent applications may fail to provide adequate protection for our product candidates. Any new product
that  competes  with  an  approved  product  may  need  to  demonstrate  compelling  advantages  in  efficacy,  cost,  convenience,  tolerability  and  safety  to  be
commercially  successful.  Other  competitive  factors,  including  generic  competition,  could  force  us  to  lower  prices  or  could  result  in  reduced  sales.  In
addition, new products developed by others could emerge as competitors to our product candidates. If we are not able to compete effectively against our
current and future competitors, our business will not grow and our financial condition and operations will suffer.

We face substantial competition, which may result in others discovering, developing and commercializing products before or more successfully than
our product candidates.

The  development  and  commercialization  of  new  drugs  is  highly  competitive.  We  face  competition  (from  major  pharmaceutical  companies,
specialty  pharmaceutical  companies  and  biotechnology  companies  worldwide)  with  respect  to  our  current  product  candidates  and  will  face  competition
with respect to any product candidates that we may seek to develop or commercialize in the future. We compete directly with companies that focus on
505(b)(2)  and  generic  drugs,  and  companies  dedicating  their  resources  to  novel  forms  of  therapies  for  these  indications.  Many  of  these  competitors  are
attempting to develop products for our target indications. We face the risk that our competitors will develop a competing product using the same 505(b)(2)
pathway that we intend to pursue. Our business model is to focus on product candidates that we consider to have a shorter timeline to, and lower cost of,
regulatory approval. These attributes can also be taken advantage of by our competitors to develop and obtain marketing approval of a competing product.
In addition, following FDA approval of our product candidates for which we have no patent protection, our competitors may seek to develop a competing
product pursuant to the 505(j) pathway, which is an abbreviated pathway used for the regulatory approval of generic product candidates. As a result of the
foregoing, we may find that the market opportunity for our product candidates for which we have no patent protection is relatively small due to the fact that
barriers to entry are low and generic competition may follow within relatively short time periods after our product is approved. With the proliferation of
new drugs and therapies in these areas, we expect to face increasingly intense competition as new technologies become available. Any product candidates
that we successfully develop and commercialize will compete with existing products and new products that may become available in the future.

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There are products already approved for all of the indications we are targeting. Many of these approved products are well established therapies and
are widely accepted by physicians, patients and third-party payors. This may make it difficult for us to achieve our business strategy of replacing existing
products with our product candidates. In addition, where we are able to offer benefits over existing products offered by our competitors, those competitors
may reformulate their drugs in a manner that mimics the benefits offered by our product candidates. As noted below, many of our product candidates are
not eligible for patent protection or the market and data exclusivity provisions under the FDCA. Consequently, our commercial operations face significant
direct competition and our competitors may develop products that are similar to ours and perhaps safer, more effective, more convenient or less costly than
any that we are developing or that would render our product candidates obsolete or non-competitive. Our inability to successfully compete could negatively
impact our business, results of operations and stock price.

Our competitors may obtain FDA or other regulatory approval for comparable products more rapidly than we may obtain approval for ours, and the
risk of our competitors doing so may lead us to develop drug candidates without disclosing certain information with regard to such candidates.

The FDCA provides three years of marketing exclusivity for an NDA, 505(b)(2) NDA, or supplement to an existing NDA or 505(b)(2) NDA if
new clinical investigations, other than bioavailability studies, that were conducted or sponsored by the applicant are deemed by the FDA to be essential to
the  approval  of  the  application,  (e.g.,  for  new  indications,  dosages,  strengths  or  dosage  forms  of  an  existing  drug).  Many  of  our  competitors  have
significantly  greater  financial,  manufacturing,  marketing,  drug  development,  technical  and  human  resources  than  we  do.  As  a  result,  many  of  our
competitors have the ability to bring a product candidate to market more rapidly than we can and depending on the nature of their product candidate they
could substantially delay the introduction of our product candidate into the market if their product qualifies for the market and data exclusivity provisions
under the FDCA. In order to preserve any competitive advantage, we will, at times, make the decision to pursue a product candidate for which we will not
disclose the API, dosage or reference drug until such time as we believe that any competitive advantage would not be materially compromised by public
disclosure of such information, which in some cases may be as late as our receipt of marketing approval from the FDA. Our business currently depends on
our  ability  to  bring  our  product  candidates  to  market  in  a  manner  that  preserves  our  perceived  competitive  advantage,  and  any  loss  of  that  competitive
advantage could negatively impact our business, results of operations and stock price.

If we are not able to obtain any required regulatory approvals for our product candidates, we will not be able to commercialize our product candidate
and our ability to generate revenue will be limited.

We may be required to successfully complete clinical trials for our product candidates before we can apply for marketing approval. Even if we
complete any such clinical trials, it does not assure marketing approval. Any such clinical trials may be unsuccessful, which would materially harm our
business. Even if such initial clinical trials are successful, we may be required to conduct additional clinical trials to establish our product candidates’ safety
and efficacy before an NDA or foreign equivalents can be submitted to the FDA or comparable foreign regulatory authorities for marketing approval of our
product candidates.

Our success depends on the receipt of regulatory approval and the issuance of such regulatory approvals is uncertain and subject to a number of

risks, including the following:

● the results of any required toxicology studies may not support the submission of an IND for our product candidates;

● the  FDA  or  comparable  foreign  regulatory  authorities  or  Institutional  Review  Boards  (“IRB”),  may  disagree  with  the  design  or

implementation of our clinical trials;

● we may not be able to provide acceptable evidence of our product candidates’ safety and efficacy;

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● the results of our clinical trials may not be satisfactory or may not meet the level of statistical or clinical significance required by the FDA or

other regulatory agencies for marketing approval;

● the dosing of our product candidates in any required clinical trial may not be at an optimal level;

● the results of our clinical trials may not be satisfactory or may not meet the level of statistical or clinical significance required by the FDA or

other regulatory agencies for marketing approval;

● the dosing of our product candidates in any required clinical trial may not be at an optimal level;

● patients in our clinical trials may suffer adverse effects for reasons that may or may not be related to our product candidates;

● the data collected from clinical trials may not be sufficient to support the submission of an NDA or other submission or to obtain regulatory

approval in the United States or elsewhere;

● the  FDA  or  comparable  foreign  regulatory  authorities  may  fail  to  approve  the  manufacturing  processes  or  facilities  of  third-party

manufacturers with which we contract for clinical and commercial supplies; and

● the approval policies or regulations of the FDA may significantly change in a manner rendering our clinical data insufficient for approval.

Failure to obtain regulatory approval for our product candidates for the foregoing, or any other reasons, will prevent us from commercializing our
product  candidates,  and  our  ability  to  generate  sufficient  revenue  will  be  materially  impaired.  We  cannot  guarantee  that  regulators  will  agree  with  our
assessment of the results of the clinical trials we intend to conduct in the future or that such trials will be successful. The FDA and other regulators have
substantial discretion in the approval process and may refuse to accept any application or may decide that our data is insufficient for approval and require
additional clinical trials, or pre-clinical or other studies. In addition, varying interpretations of the data obtained from pre-clinical and clinical testing could
delay, limit or prevent regulatory approval of our product candidates.

The process of obtaining regulatory approvals is expensive, often takes many years, if approval is obtained at all, and can vary substantially based
upon, among other things, the type, complexity and novelty of the product candidates involved, the jurisdiction in which regulatory approval is sought and
the substantial discretion of the regulatory authorities. Changes in regulatory approval policies during the development period, changes in or the enactment
of additional statutes or regulations, or changes in regulatory review for a submitted product application may cause delays in the approval or rejection of an
application.  Regulatory  approval  obtained  in  one  jurisdiction  does  not  necessarily  mean  that  a  product  candidate  will  receive  regulatory  approval  in  all
jurisdictions in which we may seek approval, but the failure to obtain approval in one jurisdiction may negatively impact our ability to seek approval in a
different  jurisdiction.  Failure  to  obtain  regulatory  marketing  approval  for  our  product  candidates  will  prevent  us  from  commercializing  the  product
candidate, and our ability to generate sufficient revenue will be materially impaired.

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If  the  FDA  does  not  conclude  that  our  product  candidates  satisfy  the  requirements  for  the  505(b)(2)  regulatory  approval  pathway,  or  if  the
requirements  for  approval  of  any  of  our  product  candidates  under  Section  505(b)(2)  are  not  as  we  expect,  the  approval  pathway  for  our  product
candidates will likely take significantly longer, cost significantly more and encounter significantly greater complications and risks than anticipated, and
in any case may not be successful.

We  intend  to  seek  FDA  approval  through  the  505(b)(2)  regulatory  pathway  for  the  majority  of  our  product  candidates.  The  Drug  Price
Competition and Patent Term Restoration Act of 1984, also known as the Hatch-Waxman Act, added Section 505(b)(2) to the FDCA. Section 505(b)(2)
permits  the  filing  of  an  NDA  where  at  least  some  of  the  information  required  for  approval  comes  from  studies  that  were  not  conducted  by  or  for  the
applicant. If the FDA does not allow us to pursue the 505(b)(2) regulatory pathway for our product candidates as anticipated, we may need to conduct
additional clinical trials, provide additional data and information and meet additional standards for regulatory approval. If this were to occur, the time and
financial resources required to obtain FDA approval for our product candidates would likely substantially increase. Moreover, the inability to pursue the
505(b)(2)  regulatory  pathway  could  result  in  new  competitive  products  reaching  the  market  faster  than  our  product  candidates,  which  could  materially
adversely impact our competitive position and prospects. Even if we are allowed to pursue the 505(b)(2) regulatory pathway for a product candidate, we
cannot  assure  you  that  we  will  receive  the  requisite  or  timely  approvals  for  commercialization  of  such  product  candidate.  For  example,  we  had  under
development  a  patented  injectable  pentoxifylline  therapeutic  candidate,  which  we  believed  would  satisfy  the  requirements  of  the  505(b)(2)  regulatory
pathway.  However,  based  on  a  pre-IND  meeting  with  the  FDA  in  March  2018  to  discuss  the  clinical  and  regulatory  pathway  for  the  product,  we  have
decided  to  suspend  all  further  development  activities  for  this  candidate  indefinitely  due  to  extraordinarily  high  costs  of  the  clinical  trials  that  would  be
required by the FDA.

Notwithstanding  the  approval  of  many  products  by  the  FDA  pursuant  to  Section  505(b)(2),  over  the  last  few  years  some  pharmaceutical
companies  and  others  have  objected  to  the  FDA’s  interpretation  of  Section  505(b)(2)  to  allow  reliance  on  the  FDA’s  prior  findings  of  safety  and
effectiveness. If the FDA changes its interpretation of Section 505(b)(2), or if the FDA’s interpretation is successfully challenged in court, this could delay
or even prevent the FDA from approving any Section 505(b)(2) application that we submit. In addition, we expect that our competitors will file citizens’
petitions  with  the  FDA  in  an  attempt  to  persuade  the  FDA  that  our  product  candidate,  or  the  clinical  studies  that  support  their  approval,  contain
deficiencies. Such actions by our competitors could delay or even prevent the FDA from approving any NDA that we submit under Section 505(b)(2).

Moreover, the FDA recently adopted an interpretation of the three-year exclusivity provisions whereby a 505(b)(2) application can be blocked by
exclusivity  even  if  does  not  rely  on  the  previously  approved  drug  that  has  exclusivity  (or  any  safety  or  effectiveness  information  regarding  that  drug).
Under the FDA’s new interpretation, approval may be blocked by exclusivity awarded to a previously-approved drug product that shares certain innovative
features with our product, even if our 505(b)(2) application does not identify the previously-approved drug product as a listed drug or rely upon any of its
safety  or  efficacy  data.  Any  failure  to  obtain  regulatory  approval  of  our  product  candidates  would  significantly  limit  our  ability  to  generate  sufficient
revenues, and any failure to obtain such approval for all of the indications and labeling claims we deem desirable could reduce our potential revenues.

An NDA submitted under Section 505(b)(2) subjects us to the risk that we may be subject to a patent infringement lawsuit that would delay or prevent
the review or approval of our product candidate.

The  505(b)(2)  application  would  enable  us  to  reference  published  literature  or  the  FDA’s  previous  findings  of  safety  and  effectiveness  for  the
branded reference drug. For NDAs submitted under Section 505(b)(2) of the FDCA, the patent certification and related provisions of the Hatch-Waxman
Act apply. In accordance with Hatch-Waxman Act, in seeking approval for a drug through such an NDA, applicants are required to list with the FDA each
patent whose claims cover the applicant’s product. Upon approval of a drug, each of the patents listed in the application for the drug is then published in the
FDA’s Approved Drug Products with Therapeutic Equivalence Evaluations, commonly known as the Orange Book. Drugs listed in the Orange Book can, in
turn, be cited by potential generic competitors in support of approval of an ANDA. An ANDA provides for marketing of a drug product that has the same
active  ingredients  in  the  same  strengths  and  dosage  form  as  the  listed  drug  and  has  been  shown  to  be  bioequivalent  to  the  listed  drug.  Other  than  the
requirement for bioequivalence testing, ANDA applicants are not required to conduct or submit results of pre-clinical or clinical tests to prove the safety or
effectiveness  of  their  drug  product.  Drugs  approved  in  this  way  are  commonly  referred  to  as  “generic  equivalents”  to  the  listed  drug  and  can  often  be
substituted by pharmacists under prescriptions written for the original listed drug.

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The  ANDA  applicant  is  required  to  certify  to  the  FDA  concerning  any  patents  listed  for  the  approved  product  in  the  FDA’s  Orange  Book.
Specifically, the applicant must certify that either: (i) the required patent information has not been filed; (ii) the listed patent has expired; (iii) the listed
patent has not expired, but will expire on a particular date and approval is sought after patent expiration or (iv) the listed patent is invalid or will not be
infringed by the new product. The ANDA applicant may also elect to submit a section viii statement certifying that its proposed ANDA label does not
contain (or carves out) any language regarding the patented method-of-use rather than certify to a listed method-of-use patent. If the applicant does not
challenge the listed patents, the ANDA application will not be approved until all the listed patents claiming the referenced product have expired.

A  certification  that  the  new  product  will  not  infringe  the  already  approved  product’s  listed  patents,  or  that  such  patents  are  invalid  or
unenforceable, is called a Paragraph IV certification. If the ANDA applicant has provided a Paragraph IV certification to the FDA, the applicant must also
send notice of the Paragraph IV certification to the NDA and patent holders once the ANDA has been accepted for filing by the FDA. The NDA and patent
holders may then initiate a patent infringement lawsuit in response to the notice of the Paragraph IV certification. Under the Hatch-Waxman Act, the holder
of patents that the 505(b)(2) application references may file a patent infringement lawsuit after receiving notice of the Paragraph IV certification. Filing of a
patent infringement lawsuit against the filer of the 505(b)(2) applicant within 45 days of the patent owner’s receipt of notice triggers a one-time, automatic,
30-month stay of the FDA’s ability to approve the 505(b)(2) NDA, unless patent litigation is resolved in favor of the Paragraph IV filer or the patent expires
before that time. Accordingly, we may invest a significant amount of time and expense in the development of one or more product candidates only to be
subject to significant delay and patent litigation before such product candidates may be commercialized, if at all.

In  addition,  a  505(b)(2)  application  will  not  be  approved  until  any  non-patent  exclusivity,  such  as  exclusivity  for  obtaining  approval  of  a  new
chemical entity listed in the Orange Book for the referenced product has expired. The FDA may also require us to perform one or more additional clinical
studies  or  measurements  to  support  the  change  from  the  branded  reference  drug,  which  could  be  time-consuming  and  could  substantially  delay  our
achievement of regulatory approvals for such product candidates. The FDA may also reject our future 505(b)(2) submissions and require us to file such
submissions under Section 505(b)(1) of the FDCA, which would require us to provide extensive data to establish safety and effectiveness of the drug for
the proposed use and could cause delay and be considerably more expensive and time-consuming. These factors, among others, may limit our ability to
successfully commercialize our product candidates.

Companies that produce branded reference drugs routinely bring litigation against ANDA or 505(b)(2) applicants that seek regulatory approval to
manufacture and market generic and reformulated forms of their branded products. These companies often allege patent infringement or other violations of
intellectual property rights as the basis for filing suit against an ANDA or 505(b)(2) applicant. Likewise, patent holders may bring patent infringement suits
against  companies  that  are  currently  marketing  and  selling  their  approved  generic  or  reformulated  products.  Litigation  to  enforce  or  defend  intellectual
property rights is often complex and often involves significant expense and can delay or prevent introduction or sale of our product candidates. If patents
are held to be valid and infringed by our product candidates in a particular jurisdiction, we would, unless we could obtain a license from the patent holder,
be required to cease selling in that jurisdiction and may need to relinquish or destroy existing stock in that jurisdiction. There may also be situations where
we use our business judgment and decide to market and sell our approved products, notwithstanding the fact that allegations of patent infringement(s) have
not  been  finally  resolved  by  the  courts,  which  is  known  as  an  “at-risk  launch.”  The  risk  involved  in  doing  so  can  be  substantial  because  the  remedies
available to the owner of a patent for infringement may include, among other things, damages measured by the profits lost by the patent owner and not
necessarily by the profits earned by the infringer. In the case of a willful infringement, the definition of which is subjective, such damages may be increased
up  to  three  times.  Moreover,  because  of  the  discount  pricing  typically  involved  with  bioequivalent  and,  to  a  lesser  extent,  505(b)(2)  products,  patented
branded  products  generally  realize  a  substantially  higher  profit  margin  than  bioequivalent  and,  to  a  lesser  extent,  505(b)(2)  products,  resulting  in
disproportionate damages compared to any profits earned by the infringer. An adverse decision in patent litigation could have a material adverse effect on
our business, financial position and results of operations and could cause the market value of our common stock to decline.

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Even if we receive regulatory approval for our additional product candidates, we may not be able to successfully commercialize these products, and the
revenue that we generate from those sales, if any, may be limited.

If  approved  for  marketing,  the  commercial  success  of  our  product  candidates  will  depend  upon  each  product’s  acceptance  by  the  medical
community, including physicians, patients and health-care payors. The degree of market acceptance for any of our product candidates will depend on a
number of factors, including:

● demonstration of clinical safety and efficacy;

● relative convenience, dosing burden and ease of administration;

● the willingness of physicians to prescribe our product candidates, and the target patient population to try new therapies;

● efficacy of our product candidates compared to competing products;

● the introduction of any new products that may in the future become available targeting indications for which our product candidates may be

approved;

● new procedures or therapies that may reduce the incidences of any of the indications in which our product candidates may show utility;

● pricing and cost-effectiveness;

● the inclusion or omission of our product candidates in applicable therapeutic and vaccine guidelines;

● the effectiveness of our own or any future collaborators’ sales and marketing strategies;

● limitations or warnings contained in approved labeling from regulatory authorities;

● our  ability  to  obtain  and  maintain  sufficient  third-party  coverage  and  adequate  reimbursement  from  government  health  care  programs,
including  Medicare  and  Medicaid,  private  health  insurers  and  other  third-party  payors  or  to  receive  the  necessary  pricing  approvals  from
government bodies regulating the pricing and usage of therapeutics; and

● the  willingness  of  patients  to  pay  out-of-pocket  in  the  absence  of  third-party  coverage  or  adequate  reimbursement  or  government  pricing

approvals.

If any of our product candidates are approved, but do not achieve an adequate level of acceptance by physicians, health care payors, and patients,
we may not generate sufficient revenue and we may not be able to achieve or sustain profitability. Our efforts to educate the medical community and third-
party payors on the benefits of our product candidates may require significant resources and may never be successful.

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In addition, even if we obtain regulatory approvals for our product candidates, the timing or scope of any approvals may prohibit or reduce our
ability to commercialize our product candidates successfully. For example, if the approval process takes too long, we may miss market opportunities and
give  other  companies  the  ability  to  develop  competing  products  or  establish  market  dominance.  Any  regulatory  approval  we  ultimately  obtain  may  be
limited  or  subject  to  restrictions  or  post-approval  commitments  that  render  our  product  candidates  not  commercially  viable.  For  example,  regulatory
authorities may approve any of our product candidates for fewer or more limited indications than we request, may not approve the price we intend to charge
for any of our product candidates, may grant approval contingent on the performance of costly post-marketing clinical trials, or may approve any of our
product  candidates  with  a  label  that  does  not  include  the  labeling  claims  necessary  or  desirable  for  the  successful  commercialization  of  that  indication.
Further, the FDA or comparable foreign regulatory authorities may place conditions on approvals or require risk management plans or a REMS, to assure
the safe use of the drug. If the FDA concludes a REMS is needed, the FDA will not approve the NDA without an approved REMS, if required. A REMS
could include medication guides, physician communication plans or elements to assure safe use, such as restricted distribution methods, patient registries
and  other  risk  minimization  tools.  The  FDA  may  also  require  a  REMS  for  an  approved  product  when  new  safety  information  emerges.  Any  of  these
limitations on approval or marketing could restrict the commercial promotion, distribution, prescription or dispensing of our product candidates. Moreover,
product approvals may be withdrawn for non-compliance with regulatory standards or if problems occur following the initial marketing of the product. Any
of the foregoing scenarios could materially harm the commercial success of our product candidates.

We are subject to ongoing obligations and continued regulatory review, which may result in significant additional expense. Additionally, our product
candidates could be subject to labeling and other restrictions and withdrawal from the market, and we may be subject to penalties if we fail to comply
with regulatory requirements or if we experience unanticipated problems with our product candidates.

The FDA or foreign equivalent may still impose significant restrictions on our products indicated uses or the conditions of approval, or impose
ongoing  requirements  for  potentially  costly  and  time-consuming  post-approval  studies,  including  Phase  4  clinical  trials,  and  post-market  surveillance  to
monitor  safety  and  efficacy.  Our  product  candidates  will  also  be  subject  to  ongoing  regulatory  requirements  governing  the  manufacturing,  labeling,
packaging,  storage,  distribution,  safety  surveillance,  advertising,  promotion,  recordkeeping  and  reporting  of  adverse  events  and  other  post-market
information. These requirements include registration with the FDA, as well as continued compliance with current GCP regulations for any clinical trials
that we conduct post-approval. In addition, manufacturers of drug products and their facilities are subject to continual review and periodic inspections by
the  FDA  and  other  regulatory  authorities  for  compliance  with  GMP  requirements  relating  to  quality  control,  quality  assurance  and  corresponding
maintenance of records and documents.

The FDA has the authority to require a REMS as part of an NDA or after approval, which may impose further requirements or restrictions on the
distribution  or  use  of  an  approved  drug,  such  as  limiting  prescribing  to  certain  physicians  or  medical  centers  that  have  undergone  specialized  training,
limiting treatment to patients who meet certain safe-use criteria or requiring patient testing, monitoring and/or enrollment in a registry.

With respect to sales and marketing activities by us or any future partner, advertising and promotional materials must comply with FDA rules in
addition to other applicable federal, state and local laws in the United States and similar legal requirements in other countries. In the United States, the
distribution of product samples to physicians must comply with the requirements of the U.S. Prescription Drug Marketing Act. Application holders must
obtain FDA approval for product and manufacturing changes, depending on the nature of the change. We may also be subject, directly or indirectly through
our  customers  and  partners,  to  various  fraud  and  abuse  laws,  including,  without  limitation,  the  U.S.  Anti-Kickback  Statute,  U.S.  False  Claims  Act,  and
similar state laws, which impact, among other things, our proposed sales, marketing and scientific/educational grant programs. If we participate in the U.S.
Medicaid Drug Rebate Program, the Federal Supply Schedule of the U.S. Department of Veterans Affairs, or other government drug programs, we will be
subject to complex laws and regulations regarding reporting and payment obligations. All of these activities are also potentially subject to U.S. federal and
state consumer protection and unfair competition laws. Similar requirements exist in many of these areas in other countries.

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In addition, if any of our product candidates are approved for a particular indication, our product labeling, advertising and promotion would be
subject  to  regulatory  requirements  and  continuing  regulatory  review.  The  FDA  strictly  regulates  the  promotional  claims  that  may  be  made  about
prescription  products.  In  particular,  a  product  may  not  be  promoted  for  uses  that  are  not  approved  by  the  FDA  as  reflected  in  the  product’s  approved
labeling. However, companies may share truthful and not misleading information that is otherwise consistent with the product’s approved FDA labeling. If
we receive marketing approval for our product candidates, physicians may nevertheless legally prescribe our products to their patients in a manner that is
inconsistent with the approved label. If we are found to have promoted such off-label uses, we may become subject to significant liability and government
fines. The FDA and other agencies actively enforce the laws and regulations prohibiting the promotion of off-label uses, and a company that is found to
have improperly promoted off-label uses may be subject to significant sanctions. The federal government has levied large civil and criminal fines against
companies for alleged improper promotion and has enjoined several companies from engaging in off-label promotion. The FDA has also requested that
companies enter into consent decrees of permanent injunctions under which specified promotional conduct is changed or curtailed.

If  we  or  a  regulatory  agency  discovers  previously  unknown  problems  with  a  product,  such  as  adverse  events  of  unanticipated  severity  or
frequency,  problems  with  the  facility  where  the  product  is  manufactured,  or  we  or  our  manufacturers  fail  to  comply  with  applicable  regulatory
requirements, we may be subject to the following administrative or judicial sanctions:

● restrictions on the marketing or manufacturing of the product, withdrawal of the product from the market, or voluntary or mandatory product

recalls;

● issuance of warning letters or untitled letters;

● clinical holds;

● injunctions or the imposition of civil or criminal penalties or monetary fines;

● suspension or withdrawal of regulatory approval;

● suspension of any ongoing clinical trials;

● refusal to approve pending applications or supplements to approved applications filed by us, or suspension or revocation of product license

approvals;

● suspension or imposition of restrictions on operations, including costly new manufacturing requirements; or

● product seizure or detention or refusal to permit the import or export of product.

The occurrence of any event or penalty described above may inhibit our ability to commercialize our product candidates and generate revenue.

Adverse regulatory action, whether pre- or post-approval, can also potentially lead to product liability claims and increase our product liability exposure.

Obtaining  foreign  regulatory  approvals  and  compliance  with  foreign  regulatory  requirements  could  result  in  significant  delays,  difficulties  and
costs  for  us  and  could  delay  or  prevent  the  introduction  of  our  products  in  certain  countries.  If  we  fail  to  comply  with  the  regulatory  requirements  in
international markets and/or to receive applicable marketing approvals, our target market will be reduced and our ability to realize the full market potential
of our product candidates will be harmed.

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Significant additional labeling or warning requirements or limitations on the availability of our products may inhibit sales of affected products.

Various jurisdictions may seek to adopt significant additional product labeling or warning requirements or limitations on the availability of our
products relating to the content or perceived adverse health consequences of our products. Federal laws may preempt some or all of these attempts by state
or localities to impose additional labeling or warning requirements. If these types of requirements become applicable to our products under current or future
environmental or health laws or regulations, they may inhibit sales of our products. Moreover, if we fail to meet compliance deadlines for any such new
requirements,  our  products  may  be  deemed  misbranded  or  mislabeled  and  could  be  subject  to  enforcement  action,  or  we  could  be  exposed  to  private
lawsuits alleging misleading labels or product promotion.

Current and future legislation may increase the difficulty and cost for us to obtain marketing approval of and commercialize our product candidates
and affect the prices we may obtain.

In  the  United  States  and  some  foreign  jurisdictions,  there  have  been  a  number  of  legislative  and  regulatory  changes  and  proposed  changes
regarding the health care system that could prevent or delay marketing approval for our product candidates, restrict or regulate post-approval activities and
affect our ability to profitably sell our product candidates. Legislative and regulatory proposals have been made to expand post-approval requirements and
restrict sales and promotional activities for pharmaceutical products. We do not know whether additional legislative changes will be enacted, or whether the
FDA regulations, guidance or interpretations will be changed, or what the impact of such changes on the marketing approvals of our product candidates, if
any, may be. In addition, increased scrutiny by the U.S. Congress of the FDA’s approval process may significantly delay or prevent marketing approval, as
well  as  subject  us  to  more  stringent  product  labeling  and  post-marketing  testing  and  other  requirements.  For  additional  information  on  legislative  and
regulatory changes, see the Item 1. Business—Healthcare Reform section.

In the United States, the Medicare Modernization Act (“MMA”) changed the way Medicare covers and pays for pharmaceutical products. The
legislation expanded Medicare coverage for drug purchases by the elderly and introduced a new reimbursement methodology based on average sales prices
for drugs. In addition, this legislation authorized Medicare Part D prescription drug plans to use formularies where they can limit the number of drugs that
will be covered in any therapeutic class. As a result of this legislation and the expansion of federal coverage of drug products, we expect that there will be
additional pressure to contain and reduce costs. These cost reduction initiatives and other provisions of this legislation could decrease the coverage and
price  that  we  receive  for  our  product  candidates  and  could  seriously  harm  our  business.  While  the  MMA  applies  only  to  drug  benefits  for  Medicare
beneficiaries, private payors often follow Medicare coverage policy and payment limitations in setting their own reimbursement rates, and any reduction in
reimbursement that results from the MMA may result in a similar reduction in payments from private payors.

In March 2010, the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act, collectively
referred to as the Health Care Reform Law, was enacted, which substantially changes the way health care is financed by both governmental and private
insurers, and significantly impacts the U.S. pharmaceutical industry. The Health Care Reform Law, among other things, imposed reporting requirements on
manufacturers related to drug samples and financial relationships with physicians and teaching hospitals, increased the minimum Medicaid rebates owed by
manufacturers under the Medicaid Drug Rebate Program and extended the rebate program to individuals enrolled in Medicaid managed care organizations,
established annual fees on manufacturers of certain branded prescription drugs, and established a Medicare Part D coverage gap discount program.

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Some of the provisions of the Health Care Reform Law have yet to be implemented, and there have been judicial and Congressional challenges to
certain aspects of the Health Care Reform Law, as well as recent efforts by the Trump administration to repeal or replace certain aspects of the Health Care
Reform Law. Since January 2017, former President Trump had signed two executive orders and other directives designed to delay, circumvent or loosen
certain requirements mandated by the Health Care Reform Law. Concurrently, Congress has considered legislation that would repeal or repeal and replace
all  or  part  of  the  Health  Care  Reform  Law.  While  Congress  has  not  passed  comprehensive  repeal  legislation,  two  bills  affecting  the  implementation  of
certain taxes under the Health Care Reform Law have been signed into law. The Tax Act included a provision which repealed, effective January 1, 2019,
the  tax-based  shared  responsibility  payment  imposed  by  the  Health  Care  Reform  Law  on  certain  individuals  who  fail  to  maintain  qualifying  health
coverage  for  all  or  part  of  a  year  that  is  commonly  referred  to  as  the  “individual  mandate.”  On  January  22,  2018,  former  President  Trump  signed  a
continuing resolution on appropriations for fiscal year 2018 that delayed the implementation of certain Health Care Reform Law-mandated fees, including
the so-called “Cadillac” tax on certain high-cost employer-sponsored insurance plans, the annual fee imposed on certain health insurance providers based
on market share, and the medical device excise tax on non-exempt medical devices. The Bipartisan Budget Act of 2018, among other things, amended the
Health Care Reform Law, effective January 1, 2019, to increase from 50% to 70% the point-of-sale discount that is owed by pharmaceutical manufacturers
who participate in Medicare Part D and to close the coverage gap in most Medicare drug plans, commonly referred to as the “donut hole”. On December
14, 2018, a Texas U.S. District Court Judge ruled that the Health Care Reform Law is unconstitutional in its entirety because the “individual mandate” was
repealed by Congress as part of the Tax Act. In June 2021, the U.S. Supreme Court overturned the 2018 Texas U.S. District Court decision. It is unclear
how subsequent appeals, and other efforts to repeal and replace the Health Care Reform will impact our business. We cannot predict the impact on our
business of changes to current laws and regulations. However, any changes that lower reimbursements for products for which we may obtain regulatory
approval, or that impose administrative and financial burdens on us, could adversely affect our business.

In addition, other legislative changes have been proposed and adopted in the United States since the Health Care Reform Law was enacted. These
changes include, among others, aggregate reductions of Medicare payments to providers of up to 2% per fiscal year. We expect that additional state and
federal health care reform measures will be adopted in the future, which may alter or completely replace the existing health care financing structure. Any of
these  reform  measures  could  limit  the  amounts  that  federal  and  state  governments  will  pay  for  health  care  products  and  services,  which  could  result  in
reduced demand for any such product candidate that we may have developed or additional pricing pressures on our business.

Further,  there  has  been  heightened  governmental  scrutiny  in  the  United  States  of  pharmaceutical  pricing  practices  in  light  of  the  rising  cost  of
prescription drugs and biologics. Such scrutiny has resulted in several recent congressional inquiries and proposed and enacted federal and state legislation
designed to, among other things, bring more transparency to product pricing, review the relationship between pricing and manufacturer patient programs,
and reform government program reimbursement methodologies for products. For example, the Trump administration released a “Blueprint” to lower drug
prices and reduce out-of-pocket costs of drugs that contains additional proposals to increase drug manufacturer competition, increase the negotiating power
of  certain  federal  healthcare  programs,  incentivize  manufacturers  to  lower  the  list  price  of  their  products,  and  reduce  the  out-of-pocket  costs  of  drug
products  paid  by  consumers.  On  January  31,  2019,  the  U.S.  Department  of  Health  and  Human  Services,  Office  of  Inspector  General,  proposed
modifications to the federal Anti-Kickback Statute discount safe harbor for the purpose of reducing the cost of drug products to consumers which, among
other things, if finalized, will affect discounts paid by manufacturers to Medicare Part D plans, Medicaid managed care organizations and pharmacy benefit
managers working with these organizations. While some of these and other proposed measures may require additional authorization to become effective,
Congress  and  government  administration  officials  have  each  indicated  that  they  will  continue  to  seek  new  legislative  and/or  administrative  measures  to
control drug costs.

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The policies of the FDA or similar regulatory authorities may change, and additional government regulations may be enacted that could prevent,
limit  or  delay  regulatory  approval  of  our  product  candidates.  For  example,  in  December  2016,  the  21st  Century  Cures  Act  was  signed  into  law.  The
21st Century Cures Act, among other things, is intended to modernize the regulation of drugs and biologics and spur innovation, but it has not yet been
fully  implemented  and  its  ultimate  implementation  is  unclear.  Furthermore,  the  Trump  administration  has  taken  several  executive  actions,  including  the
issuance of a number of executive orders, that could impose significant burdens on, or otherwise materially delay, the FDA’s ability to engage in routine
regulatory  and  oversight  activities  such  as  implementing  statutes  through  rulemaking,  issuance  of  guidance  and  review  and  approval  of  marketing
applications. If these executive actions impose constraints on the FDA’s ability to engage in oversight and implementation activities in the normal course,
our business may be negatively impacted. 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, our product candidates may lose any regulatory approval that may have been obtained and
we may not achieve or sustain profitability, which would adversely affect our business.

If we market our existing approved products or any of our new product candidates in a manner that violates health care fraud and abuse laws, or if we
violate government price reporting laws, we may be subject to civil or criminal penalties.

The FDA enforces laws and regulations, which require that the promotion of pharmaceutical products be consistent with the approved prescribing
information. While physicians may prescribe an approved product for a so-called “off label” use, it is unlawful for a pharmaceutical company to promote
its products in a manner that is inconsistent with its approved label and any company which engages in such conduct can be subject to significant liability.
Similarly,  industry  codes  in  the  EU  and  other  foreign  jurisdictions  prohibit  companies  from  engaging  in  off-label  promotion  and  regulatory  agencies  in
various countries enforce violations of the code with civil penalties. While we intend to ensure that our promotional materials are consistent with our label,
regulatory agencies may disagree with our assessment and may issue untitled letters, warning letters or may institute other civil or criminal enforcement
proceedings. In addition to FDA restrictions on marketing of pharmaceutical products, several other types of state and federal health care fraud and abuse
laws have been applied in recent years to restrict certain marketing practices in the pharmaceutical industry. These laws include, among others, the U.S.
Anti-Kickback Statute, U.S. False Claims Act and similar state laws. Because of the breadth of these laws and the narrowness of their exceptions and safe
harbors, it is possible that some of our business activities could be subject to challenge under one or more of these laws.

The U.S. Anti-Kickback Statute prohibits, among other things, knowingly and willfully offering, paying, soliciting or receiving remuneration to
induce, or in return for, purchasing, leasing, ordering or arranging for the purchase, lease or order of any health care item or service reimbursable under
Medicare,  Medicaid  or  other  federally  financed  health  care  programs.  This  statute  has  been  interpreted  broadly  to  apply  to  arrangements  between
pharmaceutical manufacturers on the one hand and prescribers, purchasers, formulary managers, and others on the other hand. Although there are several
statutory  exceptions  and  regulatory  safe  harbors  protecting  certain  common  activities  from  prosecution,  the  exceptions  and  safe  harbors  are  drawn
narrowly, and practices that involve remuneration intended to induce prescribing, purchasing or recommending may be subject to scrutiny if they do not
qualify for an exception or safe harbor. Failure to meet all of the requirements of a particular applicable statutory exception or regulatory safe harbor does
not make the conduct per se illegal under the Federal Anti-Kickback Statute. Instead, the legality of the arrangement will be evaluated on a case-by-case
basis  based  on  a  cumulative  review  of  all  of  its  facts  and  circumstances.  Our  practices  may  not,  in  all  cases,  meet  all  of  the  criteria  for  safe  harbor
protection from anti-kickback liability. Moreover, recent health care reform legislation has strengthened these laws. For example, the Health Care Reform
Law, among other things, amended the intent requirement of the U.S. Anti-Kickback Statute and other criminal health care fraud statutes; a person or entity
no longer needs to have actual knowledge of the statutes or specific intent to violate them in order to have committed a violation. In addition, the Health
Care Reform Law provides that the government may assert that a claim including items or services resulting from a violation of the U.S. Anti-Kickback
Statute constitutes a false or fraudulent claim for purposes of the U.S. False Claims Act. Federal false claims laws prohibit any person from knowingly
presenting, or causing to be presented, a false claim for payment to the federal government or knowingly making, or causing to be made, a false statement
to get a false claim paid.

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Over the past few years, several pharmaceutical and other health care companies have been prosecuted under these laws for a variety of alleged
promotional and marketing activities, such as: allegedly providing free trips, free goods, sham consulting fees and grants and other monetary benefits to
prescribers; reporting to pricing services inflated average wholesale prices that were then used by federal programs to set reimbursement rates; engaging in
off-label  promotion  that  caused  claims  to  be  submitted  to  Medicare  or  Medicaid  for  non-covered,  off-label  uses;  and  submitting  inflated  best  price
information to the Medicaid Rebate Program to reduce liability for Medicaid rebates. Most states also have statutes or regulations similar to the U.S. Anti-
Kickback Statute and the U.S. False Claims Act, which apply to items and services reimbursed under Medicaid and other state programs, or, in several
states,  apply  regardless  of  the  payor.  Sanctions  under  these  federal  and  state  laws  may  include  significant  administrative,  criminal,  and  civil  monetary
penalties, exclusion of a manufacturer’s products from reimbursement under government programs, fines and imprisonment. Due to the breadth of these
federal and state anti-kickback laws, and the potential for additional legal or regulatory change in this area, it is possible that our future business activities,
including our sales and marketing practices and/or our future relationships with physicians and the medical community might be challenged under anti-
kickback laws, which could harm us.

We are completely dependent on third parties to manufacture our approved products and new product candidates, and our commercialization of our
product  candidates  could  be  halted,  delayed  or  made  less  profitable  if  those  third  parties  fail  to  obtain  manufacturing  approval  from  the  FDA  or
comparable foreign regulatory authorities, fail to provide us with sufficient quantities of our product candidates or fail to do so at acceptable quality
levels or prices.

We do not currently have, nor do we plan to acquire, the capability or infrastructure to manufacture the API in our product candidates for use in
our clinical trials or for commercial product, if any. In addition, we do not have the capability to encapsulate any of our product candidates as a finished
drug product for commercial distribution. As a result, we will be obligated to rely on contract manufacturers, if and when any of our product candidates are
approved for commercialization. While we have entered into certain agreements with contract manufacturers for clinical and commercial supply, there can
be no assurance we will be able to maintain those relationships or engage additional contract manufacturers for clinical or commercial supply of any of our
product candidates on favorable terms to us, or at all.

The  facilities  used  by  our  contract  manufacturers  to  manufacture  our  product  candidates  must  be  approved  by  the  FDA  or  comparable  foreign
regulatory authorities pursuant to inspections that will be conducted after we submit an NDA to the FDA or their equivalents to other relevant regulatory
authorities. We will not control the manufacturing process of, and will be completely dependent on, our contract manufacturing partners for compliance
with GMPs for manufacture of both active drug substances and finished drug products. These GMP regulations cover all aspects of the manufacturing,
testing, quality control and record keeping relating to our product candidates. If our contract manufacturers do not successfully manufacture material that
conforms to our specifications and the strict regulatory requirements of the FDA or others, they will not be able to secure or maintain regulatory approval
for  their  manufacturing  facilities.  If  the  FDA  or  a  comparable  foreign  regulatory  authority  does  not  approve  these  facilities  for  the  manufacture  of  our
product candidates or if it withdraws any such approval in the future, we may need to find alternative manufacturing facilities, which would significantly
impact our ability to develop, obtain regulatory approval for or market our product candidates, if approved.

Our contract manufacturers will be subject to ongoing periodic unannounced inspections by the FDA and corresponding state and foreign agencies
for  compliance  with  GMPs  and  similar  regulatory  requirements.  We  will  not  have  control  over  our  contract  manufacturers’  compliance  with  these
regulations and standards. Failure by any of our contract manufacturers to comply with applicable regulations could result in sanctions being imposed on
us, including fines, injunctions, civil penalties, failure to grant approval to market any of our product candidates, delays, suspensions or withdrawals of
approvals, operating restrictions and criminal prosecutions, any of which could significantly and adversely affect our business. In addition, we will not have
control  over  the  ability  of  our  contract  manufacturers  to  maintain  adequate  quality  control,  quality  assurance  and  qualified  personnel.  Failure  by  our
contract manufacturers to comply with or maintain any of these standards could adversely affect our ability to develop, obtain regulatory approval for or
market any of our product candidates.

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If, for any reason, these third parties are unable or unwilling to perform, we may not be able to terminate our agreements with them, and we may
not be able to locate alternative manufacturers or formulators or enter into favorable agreements with them and we cannot be certain that any such third
parties will have the manufacturing capacity to meet future requirements. If these manufacturers or any alternate manufacturer of finished drug product
experiences any significant difficulties in its respective manufacturing processes for our API or finished products or should cease doing business with us,
we could experience significant interruptions in the supply of any of our product candidates or may not be able to create a supply of our product candidates
at all. Were we to encounter manufacturing issues, our ability to produce a sufficient supply of any of our product candidates might be negatively affected.
Our inability to coordinate the efforts of our third-party manufacturing partners, or the lack of capacity available at our third-party manufacturing partners,
could impair our ability to supply any of our product candidates at required levels. Because of the significant regulatory requirements that we would need
to satisfy in order to qualify a new bulk or finished product manufacturer, if we face these or other difficulties with our current manufacturing partners, we
could experience significant interruptions in the supply of any of our product candidates if we decided to transfer the manufacture of any of our product
candidates to one or more alternative manufacturers in an effort to deal with the difficulties.

Any manufacturing problem or the loss of a contract manufacturer could be disruptive to our operations and result in lost sales. Additionally, we
rely  on  third  parties  to  supply  the  raw  materials  needed  to  manufacture  our  potential  products.  Any  reliance  on  suppliers  may  involve  several  risks,
including  a  potential  inability  to  obtain  critical  materials  and  reduced  control  over  production  costs,  delivery  schedules,  reliability  and  quality.  Any
unanticipated  disruption  to  a  contract  manufacturer  caused  by  problems  at  suppliers  could  delay  shipment  of  any  of  our  approved  products  or  product
candidates in development, increase our cost of goods sold and result in lost sales.

We cannot guarantee that our future manufacturing and supply partners will be able to reduce the costs of commercial-scale manufacturing of any
of our product candidates over time. If the commercial-scale manufacturing costs of any of our product candidates are higher than expected, these costs
may significantly impact our operating results. In order to reduce costs, we may need to develop and implement process improvements. However, in order
to do so, we will need, from time to time, to notify or make submissions with regulatory authorities, and the improvements may be subject to approval by
such regulatory authorities. We cannot be sure that we will receive these necessary approvals or that these approvals will be granted in a timely fashion. We
also cannot guarantee that we will be able to enhance and optimize output in our commercial manufacturing process. If we cannot enhance and optimize
output, we may not be able to reduce our costs over time.

We may not be able to establish agreements with third parties with whom we wish to collaborate and, if we are able to establish them, we may not be
able to establish them on commercially reasonable terms, which could result in alterations or delays of our development and commercialization plans.

We  face  significant  competition  in  seeking  appropriate  third  parties  to  assist  us  in  our  business  operations.  Whether  we  reach  a  definitive
agreement will depend, among other things, upon our assessment of the third parties’ resources and expertise, the terms and conditions of the proposed
agreement, and the proposed parties’ evaluation of a number of factors. Those factors may include the design or results of clinical trials, the likelihood of
approval by the FDA or similar regulatory authorities outside the United States, the potential market for the product candidate, the costs and complexities
of  manufacturing  and  delivering  the  product  candidate  to  patients,  the  potential  of  competing  products,  the  existence  of  uncertainty  with  respect  to  our
ownership of technology, which can exist if there is a challenge to such ownership without regard to the merits of the challenge and industry and market
conditions generally. Potential third parties may also consider alternative product candidates or technologies for similar indications that may be available to
collaborate on and whether such a collaboration could be more attractive than the one with us for our product candidate. The terms of any arrangements
that we may establish may also not be favorable to us.

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Agreements with third parties are complex and time-consuming to negotiate and document. In addition, there have been a significant number of
recent business combinations among large pharmaceutical companies that have resulted in a reduced number of potential future third parties to assist us in
our business operations. We may not be able to negotiate agreements on a timely basis, on acceptable terms or at all. If we are unable to do so, we may
have  to  curtail  the  development  of  the  product  candidate,  reduce  or  delay  its  development  program,  delay  its  potential  commercialization  or  reduce  the
scope of any sales or marketing activities, or increase our expenditures and undertake development or commercialization activities at our own expense. If
we elect to increase our expenditures to fund development or commercialization activities on our own, we may need to obtain additional capital, which may
not be available to us on acceptable terms or at all. If we do not have sufficient funds, we may not be able to further develop our product candidate or bring
it to market and generate product revenue.

In addition, any future agreements that we enter into may not be successful. The success of our arrangements will depend heavily on the efforts
and  activities  of  our  third-party  collaborators.  Collaborators  generally  have  significant  discretion  in  determining  the  efforts  and  resources  that  they  will
apply to these collaborations. Disagreements between parties to an agreement regarding clinical development and commercialization matters can lead to
delays  in  the  development  process  or  commercializing  the  applicable  product  candidate  and,  in  some  cases,  termination  of  the  agreement.  These
disagreements can be difficult to resolve if neither of the parties has final decision-making authority. Collaborations with pharmaceutical or biotechnology
companies and other third parties often are terminated or allowed to expire by the other party. Any such termination or expiration would adversely affect us
financially and could harm our business reputation.

We may need to rely on third parties to conduct clinical trials for our future product candidates. If these third parties do not successfully carry out their
contractual duties or meet expected deadlines, we may not be able to obtain regulatory approval for or commercialize any of our product candidates
and our business would be substantially harmed.

We have entered into agreements with third-party CROs to conduct and manage our clinical programs including contracting with clinical sites to
perform  our  clinical  studies.  We  plan  to  rely  heavily  on  these  parties  for  execution  of  clinical  studies  for  our  product  candidates  and  will  control  only
certain aspects of their activities. Nevertheless, we will be responsible for ensuring that each of our studies is conducted in accordance with the applicable
protocol, legal, regulatory and scientific standards, and our reliance on CROs and clinical sites will not relieve us of our regulatory responsibilities. We and
our CROs will be required to comply with GCPs, which are regulations and guidelines enforced by the FDA and comparable foreign regulatory authorities
for any products in clinical development. The FDA and its foreign equivalents enforce these GCP regulations through periodic inspections of trial sponsors,
principal  investigators  and  trial  sites.  If  we  or  our  CROs  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, the FDA or other regulatory authorities will determine that any of our clinical trials
comply with GCPs. In addition, our clinical trials must be conducted with products produced under GMP regulations and will require a large number of test
subjects. Our failure or the failure of our CROs or clinical sites to comply with these regulations may require us to repeat clinical trials, which would delay
the regulatory approval process and could also subject us to enforcement action up to and including civil and criminal penalties.

Although we intend to design the clinical trials for our product candidates in consultation with CROs, we expect that the CROs will manage all of
the clinical trials conducted at contracted clinical sites. As a result, many important aspects of our drug development programs would be outside of our
direct control. In addition, the CROs and clinical sites may not perform all of their obligations under arrangements with us or in compliance with regulatory
requirements.  If  the  CROs  or  clinical  sites  do  not  perform  clinical  trials  in  a  satisfactory  manner,  breach  their  obligations  to  us  or  fail  to  comply  with
regulatory  requirements,  the  development  and  commercialization  of  any  of  our  product  candidates  for  the  subject  indication  may  be  delayed  or  our
development program materially and irreversibly harmed. We cannot control the amount and timing of resources these CROs and clinical sites will devote
to our program or any of our product candidates. If we are unable to rely on clinical data collected by our CROs, we could be required to repeat, extend the
duration of, or increase the size of our clinical trials, which could significantly delay commercialization and require significantly greater expenditures.

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If any of our relationships with these third-party CROs or clinical sites terminate, we may not be able to enter into arrangements with alternative
CROs or clinical sites. If CROs do not successfully carry out their contractual duties or obligations or meet expected deadlines, if they need to be replaced
or if the quality or accuracy of the clinical data they obtain is compromised due to the failure to adhere to our clinical protocols, regulatory requirements or
for other reasons, any such clinical trials may be extended, delayed or terminated, and we may not be able to obtain regulatory approval for or successfully
commercialize our product candidates. As a result, our financial results and the commercial prospects for any of our product candidates would be harmed,
our costs could increase and our ability to generate revenue could be delayed.

We enter into various contracts in the normal course of our business, some or all of which may require us to indemnify the other party to the contract.
In the event we have to perform under these indemnification provisions, it could have an adverse effect on our business, financial condition and results
of operations.

In the normal course of business, we periodically may enter into commercial, service, collaboration, licensing, consulting and other agreements
that contain indemnification provisions. With respect to our commercial agreements, vendors typically ask for indemnification from any third-party product
liability  claims  that  could  result  from  the  production,  use  or  consumption  of  the  product,  as  well  as  for  alleged  infringements  of  any  patent  or  other
intellectual property right by a third party. Should our obligation under an indemnification provision exceed applicable insurance coverage or if we were
denied insurance coverage, our business, financial condition and results of operations could be adversely affected. Similarly, if we are relying on a third
party to indemnify us and the party is denied insurance coverage, or the indemnification obligation exceeds the applicable insurance coverage and does not
have other assets available to indemnify us, our business, financial condition and results of operations could be adversely affected.

Any termination or suspension of, or delays in the commencement or completion of, any necessary studies of any of our product candidates for any
indications could result in increased costs to us, delay or limit our ability to generate revenue and adversely affect our commercial prospects.

The commencement and completion of clinical studies can be delayed for a number of reasons, including delays related to:

● the FDA or a comparable foreign regulatory authority failing to grant permission to proceed and placing the clinical study on hold;

● subjects for clinical testing failing to enroll or remain in our trials at the rate we expect;

● a facility manufacturing any of our product candidates being ordered by the FDA or other government or regulatory authorities to temporarily
or  permanently  shut  down  due  to  violations  of  GMP  requirements  or  other  applicable  requirements,  or  cross-contaminations  of  product
candidates in the manufacturing process;

● any changes to our manufacturing process that may be necessary or desired;

● subjects  choosing  an  alternative  treatment  for  the  indications  for  which  we  are  developing  our  product  candidates,  or  participating  in

competing clinical studies;

● subjects experiencing severe or unexpected drug-related adverse effects;

● reports from clinical testing on similar technologies and products raising safety and/or efficacy concerns;

● third-party clinical investigators losing their license or permits necessary to perform our clinical trials, not performing our clinical trials on our
anticipated schedule or employing methods consistent with the clinical trial protocol, GMP requirements, or other third parties not performing
data collection and analysis in a timely or accurate manner;

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● inspections of clinical study sites by the FDA, comparable foreign regulatory authorities, or IRBs finding regulatory violations that require us
to undertake corrective action, result in suspension or termination of one or more sites or the imposition of a clinical hold on the entire study,
or that prohibit us from using some or all of the data in support of our marketing applications;

● third-party contractors becoming debarred or suspended or otherwise penalized by the FDA or other government or regulatory authorities for
violations of regulatory requirements, in which case we may need to find a substitute contractor, and we may not be able to use some or any
of the data produced by such contractors in support of our marketing applications;

● one  or  more  IRBs  refusing  to  approve,  suspending  or  terminating  the  study  at  an  investigational  site,  precluding  enrollment  of  additional
subjects, or withdrawing its approval of the trial; reaching agreement on acceptable terms with prospective 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;

● deviations of the clinical sites from trial protocols or dropping out of a trial;

● adding new clinical trial sites;

● the inability of the CRO to execute any clinical trials for any reason; and

● government or regulatory delays or “clinical holds” requiring suspension or termination of a trial.

Product development costs for any of our product candidates will increase if we have delays in testing or approval or if we need to perform more
or larger clinical studies than planned. Additionally, changes in regulatory requirements and policies may occur and we may need to amend study protocols
to reflect these changes. Amendments may require us to resubmit our study protocols to the FDA, comparable foreign regulatory authorities, and IRBs for
reexamination, which may impact the costs, timing or successful completion of that study. If we experience delays in completion of, or if we, the FDA or
other regulatory authorities, the IRB, or other reviewing entities, or any of our clinical study sites suspend or terminate any of our clinical studies of any of
our product candidates, its commercial prospects may be materially harmed and our ability to generate sufficient product revenues will be delayed. Any
delays in completing our clinical trials will increase our costs, slow down our development and approval process and jeopardize our ability to generate
sufficient 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, termination or suspension of, or a delay in the commencement or completion of, clinical studies may also ultimately lead to the denial of
regulatory approval of our product candidates. In addition, if one or more clinical studies are delayed, our competitors may be able to bring products to
market before we do, and the commercial viability of any of our product candidates could be significantly reduced.

Clinical drug development involves a lengthy and expensive process with an uncertain outcome, and results of earlier studies and trials may not be
predictive of future trial results.

Clinical testing of drug product candidates is expensive and can take many years to complete, and its outcome is inherently uncertain. Failure can
occur at any time during the clinical trial process. The results of pre-clinical studies and early clinical trials may not be predictive of the results of later-
stage clinical trials. We cannot assure you that the FDA or comparable foreign regulatory authorities will view the results as we do or that any future trials
of any of our product candidates will achieve positive results. Product candidates in later stages of clinical trials may fail to show the desired safety and
efficacy traits despite having progressed through pre-clinical studies and initial clinical trials. A number of companies in the biopharmaceutical industry
have suffered significant setbacks in advanced clinical trials due to lack of efficacy or adverse safety profiles, notwithstanding promising results in earlier
trials. Any future clinical trial results for our product candidates may not be successful.

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In addition, a number of factors could contribute to a lack of favorable safety and efficacy results for any of our product candidates. For example,
such  trials  could  result  in  increased  variability  due  to  varying  site  characteristics,  such  as  local  standards  of  care,  differences  in  evaluation  period  and
surgical technique, and due to varying patient characteristics including demographic factors and health status.

We may need to conduct clinical trials for our new product candidates and we may be delayed in commercializing or fail to find success in these
trials. Further, the results of any clinical trial may not be predictive of future trial results. Positive results in preclinical testing and early clinical trials do not
ensure that later clinical trials will be successful. A number of pharmaceutical companies have suffered significant setbacks in clinical trials, including in
Phase 3, after promising results in preclinical testing and early clinical trials. These setbacks have included negative safety and efficacy observations in
later clinical trials, including previously unreported adverse events.

Phase 3 clinical trials often produce unsatisfactory results even though prior clinical trials were successful. Moreover, the results of clinical trials
may be unsatisfactory to the FDA or foreign regulatory authorities even if we believe those clinical trials to be successful. The FDA or applicable foreign
regulatory agencies may suspend one or all of our clinical trials or require that we conduct additional clinical, nonclinical, manufacturing, validation or
drug product quality studies and submit that data before considering or reconsidering any NDA or similar foreign regulatory application we may submit.
Depending on the extent of these additional studies, approval of any applications that we submit may be significantly delayed or may require us to expend
more resources than we have available. It is also possible that additional studies we conduct may not be considered sufficient by the FDA or applicable
foreign regulatory agencies to provide regulatory approval.

If any of these outcomes occur, we may not receive approval for our product candidate.

We are subject to extensive laws and regulations related to data privacy, and our failure to comply with these laws and regulations could harm our
business.

We are subject to data privacy and security laws and regulations by both the federal government and the states in which we conduct our business.
HIPAA and their respective implementing regulations, including the Final Omnibus Rule published on January 25, 2013, govern our processing of personal
data, including the collection, access, use, analysis, modification, storage, transfer, security breach notification, destruction and disposal of personal data.
There are foreign and state law versions of these laws and regulations to which we are currently and/or may in the future, be subject. For example, the
collection and use of personal health data in the European Union is governed by the GDPR. The GDPR, which is wide-ranging in scope, imposes several
requirements  relating  to  the  consent  of  the  individuals  to  whom  the  personal  data  relates,  the  information  provided  to  the  individuals,  the  security  and
confidentiality of the personal data, data breach notification and the use of third-party processors in connection with the processing of personal data. The
GDPR also imposes strict rules on the transfer of personal data out of the European Union to the United States, provides an enforcement authority and
imposes  large  monetary  penalties  for  noncompliance.  The  GDPR  requirements  apply  not  only  to  third-party  transactions,  but  also  to  transfers  of
information within our company, including employee information.

In the United States, there are numerous privacy laws that may be applicable to our activities, and a range of enforcement agencies at both the
state and federal levels that can review companies for privacy and data security concerns based on general consumer protection laws. New laws also are
being considered or have been implemented at both the state and federal levels. For example, the California Consumer Privacy Act of 2018 (effective on
January 1, 2020), as amended by the California Privacy Rights and Enforcement Act of 2020 (effective on January 1, 2023) (“CCPA”), requires companies
that process information of California residents (“consumers,” as defined under the CCPA) to make specific disclosures about their data collection, use and
disclosure  practices,  provides  consumers  with  individual  data  privacy  rights,  including  enabling  consumers  to  limit  the  use  of  their  sensitive  personal
information, imposes new operational requirements for covered businesses, imposes data retention limitations, provides a private right of action for data
breaches, creates a statutory damages framework and creates a new state agency, the California Privacy Protection Agency, that is vested with the authority
to implement and enforce the CCPA. Although there are limited exemptions for clinical trial data under the CCPA, the CCPA and other similar laws could
impact our business activities in the future depending on our revenue growth, how much consumer data we process, and how such laws are interpreted.
Additionally, four additional states have enacted privacy laws, which could increase our potential liability and adversely affect our business in the future. In
particular,  the  Virginia  Consumer  Data  Protection  Act  (“VCDPA”)  became  effective  on  January  1,  2023;  the  Colorado  Privacy  Act  (“CPA”)  and  the
Connecticut Data Privacy Act (“CTDPA”) will become effective on July 1, 2023; and the Utah Consumer Privacy Act (“UCPA”) will become effective on
December  31,  2023.  While  these  regulations  incorporate  many  similar  concepts  to  the  CCPA,  there  are  also  several  key  differences  in  their  scope,
application,  and  enforcement  that  will,  among  other  things,  impact  how  regulated  businesses  collect  and  process  personal  sensitive  data,  conduct  data
protection assessments, transfer personal data to affiliates, and respond to consumer rights requests. Other states are considering similar legislation and a
broad range of legislative measures also have been introduced at the federal level. Such proposed legislation, if enacted, may add additional complexity,
variation in requirements, restrictions and potential legal risk, require additional investment of resources in compliance programs, impact strategies and the
availability of previously useful data and could result in increased compliance costs and/or changes in business practices and policies. The existence of
comprehensive privacy laws in different states in the country makes our compliance obligations more complex and costly and may increase the likelihood
that we may be subject to enforcement actions or otherwise incur liability for noncompliance.

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Further, regulations promulgated pursuant to HIPAA imposes privacy, security and breach notification obligations on certain healthcare providers,
health  plans,  and  healthcare  clearinghouses,  known  as  covered  entities,  as  well  as  their  business  associates  that  perform  certain  services  that  involve
creating,  receiving,  maintaining  or  transmitting  individually  identifiable  health  information  for  or  on  behalf  of  such  covered  entities,  and  their  covered
subcontractors.  HIPAA  establishes  privacy  and  security  standards  that  limit  the  use  and  disclosure  of  individually  identifiable  health  information  and
protected health information, or PHI, and requires the implementation of administrative, physical, and technological safeguards to protect the privacy of
PHI and ensure the confidentiality, integrity, and availability of electronic PHI. Most healthcare providers, including research institutions from which we
obtain patient health information, are subject to privacy and security regulations promulgated under HIPAA. We do not believe that we are currently acting
as  a  covered  entity  or  business  associate  under  HIPAA  and  thus  are  not  directly  subject  to  its  requirements  or  penalties.  However,  any  person  may  be
prosecuted under HIPAA’s criminal provisions either directly or under aiding-and-abetting or conspiracy principles. Consequently, depending on the facts
and circumstances, we could face substantial criminal penalties if we knowingly receive individually identifiable health information from a HIPAA-covered
healthcare provider or research institution that has not satisfied HIPAA’s requirements for disclosure of individually identifiable health information.

The  global  legislative  and  regulatory  landscape  for  privacy  and  data  protection  continues  to  evolve,  and  implementation  standards  and
enforcement practices are likely to remain uncertain for the foreseeable future. This evolution may create uncertainty in our business, result in liability or
impose additional costs on us. The cost of compliance with these laws, regulations and standards is high and is likely to continue to increase in the future.

It is possible that privacy laws may be interpreted and applied in a manner that is inconsistent with our practices. Any failure or perceived failure
by us to comply with federal, state, or foreign laws or self-regulatory standards could result in negative publicity, diversion of management time and effort
and proceedings against us by governmental entities or others. In many jurisdictions, enforcement actions and consequences for noncompliance are rising.
As  we  continue  to  expand  into  other  foreign  countries  and  jurisdictions,  we  may  be  subject  to  additional  laws  and  regulations  that  may  affect  how  we
conduct business.

In  addition  to  the  risks  associated  with  enforcement  activities  and  potential  contractual  liabilities,  our  ongoing  efforts  to  comply  with  evolving
laws and regulations at the federal and state level may be costly and require ongoing modifications to our policies, procedures and systems. Further, any
failure by our third-party collaborators, service providers, contractors or consultants to comply with applicable law, regulations or contractual obligations
related to data privacy or security could result in proceedings against us by governmental entities or others.

We may also publish privacy policies and other documentation regarding our collection, processing, use and disclosure of personal information
and/or other confidential information. Although we endeavor to comply with applicable regulations, our published policies and other documentation, we
may  at  times  fail  to  do  so  or  may  be  perceived  to  have  failed  to  do  so.  Despite  our  efforts,  we  may  not  be  successful  in  achieving  compliance  if  our
employees or vendors fail to comply with our published policies and documentation. Such failures can subject us to potential international, local, state and
federal action if they are found to be deceptive, unfair, or misrepresentative of our actual practices. Claims that we have violated individuals’ privacy rights
or failed to comply with data protection laws or applicable privacy notices, even if we are not found liable, could be expensive and time-consuming to
defend and could result in adverse publicity that could harm our business. We also face a threat of consumer class actions related to these laws and the
overall protection of personal information. Even if we are not determined to have violated these laws, government investigations into these issues typically
require  the  expenditure  of  significant  resources  and  generate  negative  publicity,  which  could  harm  our  reputation  and  our  business,  financial  condition,
results of operations or prospects.

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Risks Relating to Our Intellectual Property Rights

We  will  depend  on  rights  to  certain  pharmaceutical  compounds  that  have  been  acquired  by  us.  We  do  not  have  complete  control  over  these
pharmaceutical compounds and any loss of our rights to them could prevent us from selling our products.

We  are  dependent  on  the  assignment  and  licensing  from  third  parties  for  certain  of  our  pharmaceutical  compounds  and  potential  product
candidates. Our rights to use the pharmaceutical compounds we were assigned are subject to the negotiation of, continuation of and compliance with the
terms of those assignments and licenses. Moreover, under these agreements, any related patents may remain under the control of the assignor or licensor.
Our rights to develop and commercialize the product candidates are subject to the validity of the intellectual property rights. Enforcement of any assigned
or licensed patents or defense or any claims asserting the invalidity of these patents is often subject to the control or cooperation of the assignor or licensor.
Legal action could be initiated against the original owners of the intellectual property that we acquired and an adverse outcome in such legal action could
harm our business because it might prevent such companies or institutions from continuing to assign intellectual property that we may need to operate our
business.

In addition, our rights to practice the inventions claimed in any patents and patent applications are subject to our assignors and licensors abiding
by the terms of those agreements and not terminating them. These agreements may be terminated by the assignor or licensor if we are in material breach of
certain terms or conditions of the agreement or in certain other circumstances. Our rights under these agreements are subject to our continued compliance
with the terms of the agreements, including the payment of royalties and other payment due under the agreements. Termination of these agreements could
prevent us from marketing some or all of our products. Because of the complexity of our products and the patents, determining the scope of the assignment
or license and related royalty obligations can be difficult and can lead to disputes between us and the assignor or licensor. An unfavorable resolution of
such a dispute could lead to an increase in the royalties payable pursuant to the agreement. If the assignor or licensor believed we were not paying the
royalties due under the agreement or were otherwise not in compliance with the terms of the agreement, the assignor or licensor might attempt to revoke the
agreement. If such an attempt were successful, we might be barred from producing and selling some or all of our products.

It may be difficult and costly to protect our intellectual property rights, and we cannot ensure the protection of these rights.

Our  commercial  success  depends,  in  part,  on  obtaining  and  maintaining  patent  protection  for  our  technologies,  products  and  processes,
successfully  defending  these  patents  against  third-party  challenges  and  successfully  enforcing  these  patents  against  third-party  competitors.  Proprietary
rights relating to our current and potential products will be protected from unauthorized use by third parties only to the extent that they are covered by valid
and enforceable patents or are effectively maintained as trade secrets. Patents owned by or licensed to us may not afford protection against competitors, and
our pending patent applications now or hereafter filed by or licensed to us may not result in patents being issued.

Our patents or patent applications, or those licensed to us, if issued, may be challenged, invalidated or circumvented, and the rights granted

thereunder may not provide proprietary protection or competitive advantages to us against competitors with similar technology. Furthermore, our
competitors may independently develop similar technologies or duplicate any technology developed by us. Because of the extensive time required for
development, testing and regulatory review of a potential product, it is possible that, before any of our products can be commercialized, any related patent
may expire or remain in existence for only a short period following commercialization, thus reducing any advantage of the patent, which could adversely
affect our ability to protect future product development and, consequently, our operating results and financial position.

If we cannot maintain the confidentiality of our proprietary technology and other confidential information, our ability to receive patent protection
and our ability to protect valuable information owned by us may be imperiled. Litigation may be necessary to assert claims of infringement, to enforce
patents issued to us, to protect trade secrets or know-how owned by us, or to determine the scope and validity of the proprietary rights of others. In addition,
interference,  derivation,  post-grant  oppositions,  and  similar  proceedings  may  be  necessary  to  determine  rights  to  inventions  in  our  patents  and  patent
applications. Litigation or similar proceedings could result in substantial costs to and diversion of effort by us and could have a material adverse effect on
our business, financial condition and results of operations. These efforts by us may not be successful.

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Additionally,  if  we  or  one  of  our  licensing  partners  initiated  legal  proceedings  against  a  third  party  to  enforce  a  patent  covering  any  product
candidate, the defendant could counterclaim that the patent covering any other product candidate is invalid and/or unenforceable. In patent litigation in the
United  States,  defendant  counterclaims  alleging  invalidity  and/or  unenforceability  are  commonplace.  Grounds  for  a  validity  challenge  include  alleged
failures to meet any of several statutory requirements, including lack of novelty, obviousness or non-enablement. Grounds for unenforceability assertions
include allegations that someone connected with prosecution of the patent withheld relevant information from the USPTO, or made a misleading statement,
during  prosecution.  Third  parties  may  also  raise  similar  claims  before  administrative  bodies  in  the  United  States  or  abroad,  even  outside  the  context  of
litigation. Such mechanisms include re-examination, post grant review and equivalent proceedings in foreign jurisdictions, e.g., opposition proceedings.
Such  proceedings  could  result  in  revocation  or  amendment  of  our  patents  or  our  licensors’  patents  in  such  a  way  that  they  no  longer  cover  product
candidates or competitive products. The outcome following legal assertions of invalidity and unenforceability is unpredictable. With respect to validity, for
example, we cannot be certain that there is no invalidating prior art, of which we and the patent examiner were unaware during prosecution. If a defendant
were to prevail on a legal assertion of invalidity and/or unenforceability, we would lose at least part, and perhaps all, of the patent protection on any product
candidate. Such a loss of patent protection would have a material adverse impact on our business.

We also rely on our know-how, trade secrets, and continuing technological innovation to develop and maintain our proprietary position. However,
know-how and trade secrets are difficult to protect. While we require and continue to intend to require employees, academic collaborators, consultants and
other  contractors  to  enter  into  confidentiality  agreements,  we  may  not  be  able  to  adequately  protect  our  trade  secrets  or  other  proprietary  or  licensed
information. There can be no assurance that these agreements will not be breached, that we will have adequate remedies for any breach, or that our trade
secrets will not otherwise become known or be independently discovered by competitors. To the extent that our employees, consultants or contractors use
intellectual property owned by others in their work for us, disputes may also arise as to the rights in related or resulting know-how and inventions.

We may not be able to protect our intellectual property rights throughout the world.

Filing,  prosecuting  and  defending  patents  on  product  candidates  in  all  countries  and  jurisdictions  throughout  the  world  would  be  prohibitively
expensive, and our intellectual property rights in some countries outside the United States could be less extensive than those offered in the United States.
Consequently,  we  may  not  be  able  to  prevent  third  parties  from  practicing  our  inventions  in  all  countries  outside  the  United  States,  or  from  selling  or
importing products made using our inventions in and into the United States or other jurisdictions.

Competitors may use our technologies in jurisdictions where we do not have, or where we do not pursue and obtain, patent protection to develop
their own products and further, may export otherwise infringing products to territories where we have patent protection, but enforcement is not as strong as
that  in  the  United  States.  These  products  may  compete  with  our  product  and  our  patents  or  other  intellectual  property  rights  may  not  be  effective  or
sufficient to prevent them from competing. Even if we pursue and obtain issued patents in particular jurisdictions, our patent claims or other intellectual
property rights may not be effective or sufficient to prevent third parties from so competing.

Further, the laws of some foreign countries do not protect intellectual property rights to the same extent as the laws of the United States. Many
companies have encountered significant problems in protecting and defending intellectual property rights in certain foreign jurisdictions. The legal systems
of some countries, particularly developing countries, do not favor the enforcement of patents and other intellectual property protection, especially those
relating  to  biotechnology.  This  could  make  it  difficult  for  us  to  stop  the  infringement  of  our  patents,  if  obtained,  or  the  misappropriation  of  our  other
intellectual property rights. For example, many foreign countries have compulsory licensing laws under which a patent owner must grant licenses to third
parties. In addition, many countries limit the enforceability of patents against third parties, including government agencies or government contractors. In
these  countries,  patents  may  provide  limited  or  no  benefit.  Patent  protection  must  ultimately  be  sought  on  a  country-by-country  basis,  which  is  an
expensive and time-consuming process with uncertain outcomes. Accordingly, we may choose not to seek patent protection in certain countries, and we
will not have the benefit of patent protection in such countries.

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Moreover, proceedings to enforce our patent rights, or those of our licensors or partners, in foreign jurisdictions could result in substantial costs
and divert our efforts and attention from other aspects of our business, could put our in-licensed patents, or any patents that we may own in the future, at
risk  of  being  invalidated  or  interpreted  narrowly,  could  put  our  owned  or  in-licensed  patent  applications  at  risk  of  not  issuing  and  could  provoke  third
parties to assert claims against us. We may not prevail in any lawsuits that we initiate, and the damages or other remedies awarded, if any, may not be
commercially meaningful. Accordingly, our efforts to enforce our intellectual property rights around the world may be inadequate to obtain a significant
commercial advantage from the intellectual property that we develop or license.

If we fail to obtain or maintain patent protection or trade secret protection for our product candidates or our technologies, third parties could use
our  proprietary  information,  which  could  impair  our  ability  to  compete  in  the  market  and  adversely  affect  our  ability  to  generate  revenues  and  attain
profitability.

We may also rely on the trademarks we may develop to distinguish our products from the products of our competitors. We cannot guarantee that
any trademark applications filed by us or our business partners will be approved. Third parties may also oppose such trademark applications, or otherwise
challenge our use of the trademarks. In the event that the trademarks we use are successfully challenged, we could be forced to rebrand our products, which
could result in loss of brand recognition, and could require us to devote resources to advertising and marketing new brands. Further, we cannot provide
assurance that competitors will not infringe the trademarks we use, or that we will have adequate resources to enforce these trademarks.

Changes in either U.S. patent law or interpretation of such laws could diminish the value of patents in general, thereby impairing our ability to protect
our products.

As is the case with other biotechnology companies, our success is heavily dependent on intellectual property, particularly patents. Obtaining and
enforcing patents in the biotechnology industry involve both technological and legal complexity, and it therefore is costly, time-consuming and inherently
uncertain.  In  addition,  on  September  16,  2011,  the  Leahy-Smith  America  Invents  Act  (“AIA”),  was  signed  into  law.  The  AIA  includes  a  number  of
significant changes to U.S. patent law, including provisions that affect the way patent applications will be prosecuted and may also affect patent litigation.

An important change introduced by the AIA is that, as of March 16, 2013, the United States transitioned to a “first-to-file” system for deciding
which party should be granted a patent when two or more patent applications are filed by different parties claiming the same invention. A third party that
files a patent application in the U.S. PTO after that date but before us could therefore be awarded a patent covering an invention of ours even if we had
made the invention before it was made by the third party. This will require us to be cognizant going forward of the time from invention to filing of a patent
application.

Among some of the other changes introduced by the AIA are changes that limit where a patentee may file a patent infringement suit and providing
opportunities for third parties to challenge any issued patent in the USPTO. This applies to all of our U.S. patents, even those issued before March 16,
2013. Because of a lower evidentiary standard necessary to invalidate a patent claim in the USPTO proceedings compared to the evidentiary standard in
U.S. federal court, a third party could potentially provide evidence in a USPTO proceeding sufficient for the USPTO to hold a claim invalid even though
the same evidence would be insufficient to invalidate the claim if first presented in a district court action. Accordingly, a third party may attempt to use the
USPTO procedures to invalidate our patent claims that would not have been invalidated if first challenged by the third party as a defendant in a district
court action.

Depending  on  decisions  by  the  U.S.  Congress,  the  federal  courts,  the  USPTO,  or  similar  authorities  in  foreign  jurisdictions,  the  laws  and
regulations governing patents could change in unpredictable ways that would weaken our ability to obtain new patents or to enforce our existing in-licensed
patents and patents that we might obtain in the future.

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Our product candidates may infringe the intellectual property rights of others, which could increase our costs and delay or prevent our development
and commercialization efforts.

Our  success  depends  in  part  on  avoiding  infringement  of  the  proprietary  technologies  of  others.  The  pharmaceutical  industry  has  been
characterized by frequent litigation regarding patent and other intellectual property rights. Identification of third-party patent rights that may be relevant to
our proprietary technology is difficult because patent searching is imperfect due to differences in terminology among patents, incomplete databases and the
difficulty in assessing the meaning of patent claims. Additionally, because patent applications are maintained in secrecy until the application is published,
we cannot be certain that we were the first to make inventions or file for protection of inventions set forth in our patents or patent applications. There may
also be issued patents and patent applications claiming subject matter that we may be required to license in order to research, develop or commercialize any
of our product candidates, and we do not know if such patents and patent applications would be available to license on commercially reasonable terms, or
at all. Any claims of patent infringement asserted by third parties would be time-consuming and may:

● result in costly litigation;

● divert the time and attention of our technical personnel and management;

● prevent us from commercializing a product until the asserted patent expires or is held finally invalid or not infringed in a court of law;

● require us to cease or modify our use of the technology and/or develop non-infringing technology; or

● require us to enter into royalty or licensing agreements.

Third parties may hold proprietary rights that could prevent any of our product candidates from being marketed. Any patent-related legal action
against  us  claiming  damages  and  seeking  to  enjoin  commercial  activities  relating  to  any  of  our  product  candidates  or  our  processes  could  subject  us  to
potential liability for damages and require us to obtain a license to continue to manufacture or market any of our product candidates or any future product
candidates.  We  cannot  predict  whether  we  would  prevail  in  any  such  actions  or  that  any  license  required  under  any  of  these  patents  would  be  made
available on commercially acceptable terms, if at all. In addition, we cannot be sure that we could redesign our product candidates or any future product
candidates or processes to avoid infringement, if necessary. Accordingly, an adverse determination in a judicial or administrative proceeding, or the failure
to obtain necessary licenses, could prevent us from developing and commercializing any of our product candidates or a future product candidate, which
could harm our business, financial condition and operating results.

We expect that there are other companies, including major pharmaceutical companies, working in the areas competitive to our proposed product
candidates which either has resulted, or may result, in the filing of patent applications that may be deemed related to our activities. If we were to challenge
the validity of these or any issued U.S. patent in court, we would need to overcome a statutory presumption of validity that attaches to every issued U.S.
patent. This means that, in order to prevail, we would have to present clear and convincing evidence as to the invalidity of the patent’s claims. If we were to
challenge the validity of these or any issued U.S. patent in an administrative trial before the Patent Trial and Appeal Board in the USPTO, we would have
to prove that the claims are unpatentable by a preponderance of the evidence. There is no assurance that a jury and/or court would find in our favor on
questions of infringement, validity or enforceability.

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Others may claim an ownership interest in our intellectual property, which could expose us to litigation and have an adverse effect on our prospects.

A third party may claim an ownership interest in one or more of our or our licensors’ patents or other proprietary or intellectual property rights. A
third  party  could  bring  legal  actions  against  us  and  seek  monetary  damages  and/or  enjoin  clinical  testing,  manufacturing  and  marketing  of  the  affected
product or products. We cannot guarantee that a third party will not assert a claim or an interest in any of such patents or intellectual property. If we become
involved  in  any  litigation,  it  could  consume  a  substantial  portion  of  our  resources,  and  cause  a  significant  diversion  of  effort  by  our  technical  and
management personnel. If any of these actions are successful, in addition to any potential liability for damages, we could be required to obtain a license to
continue to manufacture or market the affected product, in which case we may be required to pay substantial royalties or grant cross-licenses to our patents.
We  cannot,  however,  assure  you  that  any  such  license  will  be  available  on  acceptable  terms,  if  at  all.  Ultimately,  we  could  be  prevented  from
commercializing a product candidate, or be forced to cease some aspect of our business operations as a result of claims of patent infringement or violation
of other intellectual property rights. Further, the outcome of intellectual property litigation is subject to uncertainties that cannot be adequately quantified in
advance, including the demeanor and credibility of witnesses and the identity of any adverse party. This is especially true in intellectual property cases that
may turn on the testimony of experts as to technical facts upon which experts may reasonably disagree.

We  may  be  subject  to  claims  that  we  have  wrongfully  hired  an  employee  from  a  competitor  or  that  we  or  our  employees  have  wrongfully  used  or
disclosed alleged confidential information or trade secrets of their former employers.

As is commonplace in our industry, we will employ individuals who were previously employed at other pharmaceutical companies, including our
competitors or potential competitors. Although no claims against us are currently pending, we may be subject in the future to claims that our employees or
prospective employees are subject to a continuing obligation to their former employers (such as non-competition or non-solicitation obligations) or claims
that  our  employees  or  we  have  inadvertently  or  otherwise  used  or  disclosed  trade  secrets  or  other  proprietary  information  of  their  former  employers.
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.

Risks Related to Owning Our Common Stock

An active, liquid and orderly trading market for our shares may not continue to be developed or sustained.

Our common stock is listed on the Nasdaq Global Market. However, trading volume has been limited and a more active public market for our
common stock may not develop or be sustained over time. The market price of our common stock could be subject to significant fluctuations. The price of
our  stock  may  change  in  response  to  variations  in  our  operating  results  and  also  may  change  in  response  to  other  factors,  including  factors  specific  to
companies in our industry many of which are beyond our control. Our shares may be less liquid than the shares of other public companies and there may be
imbalances between supply and demand for our shares. As a result, our share price may experience significant volatility and may not necessarily reflect the
value  of  our  expected  performance.  Moreover,  sales  of  our  common  stock  in  the  public  market,  or  the  perception  that  such  sales  could  occur,  could
negatively  impact  the  price  of  our  common  stock.  As  a  result,  you  may  not  be  able  to  sell  your  shares  of  our  common  stock  in  short  time  periods,  or
possibly at all, and the price per share of our common stock may fluctuate significantly.

Future capital raises may dilute our existing stockholders’ ownership, could depress the market price for our common stock and have other adverse
effects on our operations.

We  have  an  effective  Form  S-3  registration  statement  (“Shelf  Registration”)  on  file  with  the  SEC  which  allows  us  to  sell  any  combination  of
common stock, preferred stock, debt securities, warrants to purchase any of these securities, subscription rights to purchase any of these securities, and/or
units consisting of one or more of the foregoing in one or more offerings up to a total dollar amount of $100 million (including the $22.5 million raised in
our October 2020 offering of common stock). The issuance of additional shares of our common stock pursuant to the Shelf Registration, or issuances of
securities  convertible  into  or  exercisable  for  our  common  stock  or  other  equity-linked  securities,  including  preferred  stock,  warrants,  debt  securities  or
units, would dilute the ownership interest of our common shareholders and could depress the market price of our common stock and impair our ability to
raise capital through the sale of additional equity securities. If we raise additional funds by issuing debt securities, these debt securities would have rights
senior to those of our common stock and the terms of the debt securities issued could impose significant restrictions on our operations, including liens on
our assets. If we raise additional funds through collaborations and licensing arrangements, we may be required to relinquish some rights to our technologies
or candidate products, or to grant licenses on terms that are not favorable to us.

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The trading price of the shares of our common stock may continue to be volatile, and purchasers of our common stock could incur substantial losses.

The trading price of our common stock has fluctuated significantly in the past and is likely to be volatile. The stock market in general, and early
stage  public  companies  in  particular,  has  experienced  extreme  price  and  volume  fluctuations  that  have  often  been  unrelated  or  disproportionate  to  the
operating performance of such companies. The stock market in general has been, and the market price of our shares in particular will likely be, subject to
fluctuation, whether due to, or irrespective of, our operating results and financial condition. The market price of our shares on the Nasdaq Global Market
may fluctuate as a result of a number of factors, some of which are beyond our control, including, but not limited to:

● actual or anticipated variations in our and our competitors’ results of operations and financial condition;

● market acceptance of our products;

● the mix of products that we sell and related services that we provide;

● changes in earnings estimates or recommendations by securities analysts, if our shares are covered by analysts;

● not being required to comply with the auditor attestation requirements of Section 404 of the Sarbanes-Oxley Act of 2002 (“Sarbanes-Oxley

Act”);

● changes in earnings estimates or recommendations by securities analysts, if our shares are covered by analysts;

● development of technological innovations or new competitive products by others;

● announcements of technological innovations or new products by us;

● publication of the results of preclinical or clinical trials for our other product candidates;

● failure by us to achieve a publicly announced milestone;

● delays between our expenditures to develop and market new or enhanced products and the generation of sales from those products;

● developments concerning intellectual property rights, including our involvement in litigation brought by or against us;

● regulatory developments and the decisions of regulatory authorities as to the approval or rejection of new or modified products;

● changes in the structure of healthcare payment systems;

● changes in the amounts that we spend to develop, acquire or license new products, technologies or businesses;

● changes in our expenditures to promote our products;

● our sale or proposed sale, or the sale by our significant stockholders, of our shares or other securities in the future;

● changes in key personnel;

● success or failure of our research and development projects or those of our competitors;

● the trading volume of our shares; and

● general economic and market conditions and other factors, including factors unrelated to our operating performance.

These factors and any corresponding price fluctuations may materially and adversely affect the market price of our shares and result in substantial
losses being incurred by our investors. In the past, following periods of market volatility, public company stockholders have often instituted securities class
action  litigation.  If  we  were  involved  in  securities  litigation,  it  could  impose  a  substantial  cost  upon  us  and  divert  the  resources  and  attention  of  our
management from our business.

We are a “smaller reporting company” and we cannot be certain if the reduced disclosure requirements applicable to smaller reporting companies will
make our common stock less attractive to investors.

We are a “smaller reporting company” pursuant to the Securities Exchange Act of 1934. As a smaller reporting company, we are permitted and
plan to rely on exemptions from certain disclosure requirements that are applicable to other public companies that are not smaller reporting companies.
These exemptions include, but are not limited to, presenting only two years of audited financial statements in our registration statement and annual reports
on Form 10-K, selected financial data in such registration statements and annual reports, and reduced disclosure obligations on executive compensation. As
a result of our reduced disclosure requirements, the information we provide stockholders will be different than the information that is available with respect
to other public companies. 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 more volatile.

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If we fail to maintain an effective system of internal control over financial reporting, we may not be able to accurately report our financial results or
prevent  fraud.  As  a  result,  stockholders  could  lose  confidence  in  our  financial  and  other  public  reporting,  which  would  harm  our  business  and  the
trading price of our common shares.

Effective internal controls over financial reporting are necessary for us to provide reliable financial reports and, together with adequate disclosure
controls and procedures, are designed to prevent fraud. Any failure to implement required new or improved controls, or difficulties encountered in their
implementation could cause us to fail to meet our reporting obligations. In addition, any testing by us conducted in connection with Section 404 of the
Sarbanes-Oxley Act, or the subsequent testing by our independent registered public accounting firm when required, may reveal deficiencies in our internal
controls over financial reporting that are deemed to be material weaknesses or that may require prospective or retrospective changes to our consolidated
financial statements or identify other areas for further attention or improvement. Inferior internal controls could also cause investors to lose confidence in
our reported financial information, which could have a negative effect on the trading price of our common shares. There is also a risk that neither we nor
our independent registered public accounting firm (when applicable in the future) will be able to conclude within the prescribed timeframe that internal
controls over financial reporting is effective as required by Section 404. This could result in an adverse reaction in the financial markets due to a loss of
confidence in the reliability of our financial statements.

We have not paid dividends in the past and have no immediate plans to pay dividends, so any returns will be limited to the value of our stock.

We plan to reinvest all of our earnings, to the extent we have earnings, to cover operating costs and otherwise become and remain competitive. We
do not plan to pay any cash dividends with respect to our securities in the foreseeable future. We cannot assure you that we would, at any time, generate
sufficient  surplus  cash  that  would  be  available  for  distribution  to  the  holders  of  our  common  stock  as  a  dividend.  Therefore,  you  should  not  expect  to
receive cash dividends on our common stock, and any return to stockholders will therefore be limited to the appreciation of their stock.

If equity research analysts do not publish research or reports about our business or if they issue unfavorable commentary or downgrade our shares, the
price of our shares could decline.

The trading market for our shares will rely in part on the research and reports that equity research analysts publish about us and our business, if at
all. We do not have control over these analysts, and we do not have commitments from them to write research reports about us. The price of our shares
could decline if no research reports are published about us or our business, or if one or more equity research analysts downgrades our shares or if those
analysts issue other unfavorable commentary or cease publishing reports about us or our business.

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

Under  the  Tax  Act,  federal  NOLs  incurred  in  taxable  years  ending  after  December  31,  2017,  may  be  carried  forward  indefinitely,  but  the
deductibility of federal NOLs generated in tax years beginning before December 31, 2017, is limited. We filed in GA, IL, MN, TN, and FL for 2022. Only
GA and FL conform to the Tax Act. IL and TN do not conform (their NOL will expire if not used and there is no limit deduction on their NOL). MN does
conform with the 80% of taxable income limitation section of the Tax Act for the years 2018 through 2022 and has a 70% limitation for 2023, but not the
indefinite  carryforward  section.  MN  NOL  will  expire  if  not  used.  In  addition,  under  Sections  382  and  383  of  the  Internal  Revenue  Code  of  1986,  as
amended, and corresponding provisions of state law, if a corporation undergoes an “ownership change,” which is generally defined as a greater than 50%
change (by value) in its equity ownership over a three-year period, the corporation’s ability to use its pre-change NOL carryforwards, or NOLs, and other
pre-change tax attributes (such as research tax credits) to offset its post-change income may be limited. We are performing a study to determine if we have
triggered  any  “ownership  change”  limitations.  We  may  also  experience  ownership  changes  in  the  future  as  a  result  of  subsequent  shifts  in  our  stock
ownership  some  of  which  may  be  outside  of  our  control.  As  a  result,  if  we  earn  net  taxable  income,  our  ability  to  use  our  pre-ownership  change  NOL
carryforwards to offset U.S. federal taxable income may be subject to limitations, which could potentially result in increased future tax liability to us. In
addition, at the state level, there may be periods during which the use of NOLs is suspended or otherwise limited, which could accelerate or permanently
increase state taxes owed.

Assuming a market for our common stock continues to develop, sales of a substantial number of shares of our common stock in the public market by
our existing stockholders could cause our stock price to fall.

Sales of a substantial number of shares of our common stock by our existing stockholders in the public market or the perception that these sales
might  occur,  could  depress  the  market  price  of  our  common  stock  and  could  impair  our  ability  to  raise  capital  through  the  sale  of  additional  equity
securities. We are unable to predict the effect that such sales may have on the prevailing market price of our common stock.

As of March 5, 2024, we had 25,688,062 shares of common stock outstanding, all of which, other than shares held by our directors and certain
officers, are eligible for sale in the public market, subject in some cases to compliance with the requirements of Rule 144, including volume limitations and
manner of sale requirements.

Certain holders of our securities are entitled to rights with respect to the registration of their shares under the Securities Act of 1933, as amended
(the “Securities Act”). Registration of these shares under the Securities Act would result in the shares becoming freely tradable without restriction under the
Securities Act. Any sales of securities by these stockholders could have a material adverse effect on the trading price of our common stock.

We may be at an increased risk of securities class action litigation.

Historically, 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 pharmaceutical companies have experienced significant stock price volatility in recent
years. If we were to be sued, it could result in substantial costs and a diversion of management’s attention and resources, which could harm our business.

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Our charter documents and Delaware law may inhibit a takeover that stockholders consider favorable.

Provisions in our amended and restated certificate of incorporation and amended and restated bylaws and applicable provisions of Delaware law
may  delay  or  discourage  transactions  involving  an  actual  or  potential  change  in  control  or  change  in  our  management,  including  transactions  in  which
stockholders might otherwise receive a premium for their shares, or transactions that our stockholders might otherwise deem to be in their best interests.
The provisions in our amended and restated certificate of incorporation and amended and restated bylaws:

● authorize our board of directors to issue, without further action by the stockholders, shares of undesignated preferred stock with terms, rights

and preferences determined by our board of directors that may be senior to our common stock;

● establish an advance notice procedure for stockholder proposals to be brought before an annual meeting, including proposed nominations of

persons for election to our board of directors;

● establish that our board of directors is divided into three classes, with each class serving three-year staggered terms;

● require the approval of our board of directors or the holders of at least seventy-five percent (75%) of our outstanding shares of capital stock to

amend our bylaws and certain provisions of our certificate of incorporation;

● limit who may call stockholder meetings;

● do not provide for cumulative voting rights; and

● provide that all vacancies may be filled by the affirmative vote of a majority of directors then in office, even if less than a quorum.

In addition, Section 203 of the Delaware General Corporation Law may limit our ability to engage in any business combination with a person who
beneficially  owns  15%  or  more  of  our  outstanding  voting  stock  unless  certain  conditions  are  satisfied.  This  restriction  lasts  for  a  period  of  three  years
following  the  share  acquisition.  These  provisions  may  have  the  effect  of  entrenching  our  management  team  and  may  deprive  our  stockholders  of  the
opportunity to sell their shares to potential acquirers at a premium over prevailing prices. This potential inability to obtain a control premium could reduce
the price of our common stock.

Our amended and restated certificate of incorporation designates the Court of Chancery of the State of Delaware as the sole and exclusive forum for
certain litigation that may be initiated by our stockholders, which could limit our stockholders’ ability to obtain a favorable judicial forum for disputes
with us or our directors, officers or stockholders.

Provisions in our amended and restated certificate of incorporation provide that the Court of Chancery of the State of Delaware will, to the fullest

extent permitted by law, be the sole and exclusive forum for:

● any derivative action or proceeding brought on our behalf;

● any action asserting a claim of breach of a fiduciary duty owed to us or our stockholders by any of our directors, officers or other employees;

● any action asserting a claim against us or any of our directors, officers or other employees arising pursuant to any provision of Delaware law

or our charter documents; or

● any  action  asserting  a  claim  against  us  or  any  of  our  directors,  officers  or  other  employees  governed  by  the  internal  affairs  doctrine,  but
excluding actions to enforce a duty or liability created by the Exchange Act or any other claim for which the federal courts have exclusive
jurisdiction.

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In  addition,  unless  we  consent  in  writing  to  the  selection  of  an  alternative  forum,  the  Federal  district  courts  of  the  United  States  shall  be  the
exclusive forum for the resolution of any complaint asserting a cause of action arising under the Securities Act. However, a court may determine that this
provision is unenforceable.

Ownership portions held by our executives and directors, as well as by our former parent company, Harrow Health, Inc., may limit our stockholders’
ability to influence corporate matters.

Our directors and executive officers beneficially own approximately 14.9% of our common stock. Additionally, Harrow Health, Inc. (“Harrow”),
our former parent company, holds approximately 7.7% of our outstanding common stock as of March 5, 2024. Accordingly, these parties, together, can
significantly influence, though not independently determine, the outcome of matters required to be submitted to our stockholders for approval, including
decisions relating to the election of our board of directors and the outcome of any proposed merger or consolidation of our company. These interests may
not be consistent with those of our other stockholders. In addition, the significant interest held by these parties, and particularly by Harrow, may discourage
third parties from seeking to acquire control of us, which may adversely affect the market price of our shares.

As  stockholders  in  our  company,  you  will  be  deemed  to  have  notice  of  and  have  consented  to  the  provisions  of  our  amended  and  restated
certificate of incorporation related to choice of forum, but will not be deemed to have waived our compliance with the federal securities laws and the rules
and regulations thereunder. The choice of forum provisions in our amended and restated certificate of incorporation may limit our stockholders’ ability to
obtain a favorable judicial forum for disputes with us or any of our directors, officers or other employees, which may discourage lawsuits with respect to
such claims. Alternatively, if a court were to find the choice of forum provision contained in our restated charter to be inapplicable or unenforceable in an
action, we may incur additional costs associated with resolving such action in other jurisdictions, which could harm our business, results of operations and
financial condition.

Item 1B. Unresolved Staff Comments

None.

Item 1C. Cybersecurity

Risk Management and Strategy

Managing  cybersecurity  risk  is  critical  to  supporting  our  vision,  enabling  our  strategy,  and  safely  operating  our  business.  We  recognize  the
importance of assessing, identifying, and managing material risks associated with cybersecurity threats. Our process for identifying and assessing material
risks from cybersecurity threats operates alongside our broader overall risk assessment process which covers all Company risks. As part of this process,
appropriate  personnel  collaborate  with  third-party  subject  matter  experts  to  gather  insights  for  identifying  and  assessing  material  risks  associated
with cybersecurity threats, their severity, and potential mitigations. Further, we provide periodic training for all personnel regarding cybersecurity threats,
with such training appropriate to the roles, responsibilities and access of the relevant Company personnel. Our policies require all workers to report any real
or suspected cybersecurity event.

We have a cybersecurity risk assessment process that involves the activities listed below, among others:

● Compare our processes to benchmark standards, such as those set by the National Institute of Standards and

Technology (“NIST”).

● Closely monitor emerging data protection laws and implement changes to our processes as needed.

● Conduct annual cybersecurity management and incident training for employees involved in our systems that contain

sensitive data.

● Run tabletop exercises to simulate a response to a cybersecurity incident and use the findings to improve our processes and technologies as

needed.

● Carry cybersecurity risk insurance that provides protection against potential losses arising from a cybersecurity

incident.

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As part of the above process, we engage third-party services to provide 24-hour, 365-day monitoring, escalation, and response to cyber events. In
addition  to  consulting  on  best  practices,  we  leverage  a  third-party  expert  security  firm  for  independent  evaluations  of  our  security  controls  through
penetration testing. These evaluations test both the design and the operational effectives of security controls.

Our process also addresses material risks from cybersecurity threats associated with our use of third-party service providers, including those in our
supply  chain,  our  product  development  partners,  or  those  who  have  access  to  sensitive  data  or  our  systems.  Third-party  risks  are  included  within  our
broader  overall  risk  assessment  process,  and  cybersecurity  considerations  are  considered  during  the  selection  and  oversight  of  our  third-party  service
providers. 

Governance

Our  board  of  directors,  in  coordination  with  the Audit  Committee,  oversees  our  risk  management  program,  including  the  management  of  risks
associated  with  cybersecurity  threats.  Our  board  of  directors  and  Audit  Committee  receive  periodic  updates  on  developments  in  our  cybersecurity  risk
management practices, evolving standards, third-party vulnerability assessments, and information security issues. On an annual basis, our board of directors
and  the  Audit  Committee  discuss  our  approach  to  overseeing  cybersecurity  threats  with  senior  management,  including  our  Chief  Executive  Officer
(“CEO”) and Chief Financial Officer (“CFO”).

Senior  management  works  collaboratively  across  the  organization  to  implement  a  program  designed  to  protect  our  information  systems  from
cybersecurity threats and to respond to any cybersecurity incidents in accordance with our incident response and recovery plans. A cross-functional team
addresses  cybersecurity  threats  and  responds  to  cybersecurity  incidents  through  communications  within  the  team  and  with  third-party  experts  to  stay
informed about and monitor the prevention, detection, mitigation, and remediation of cybersecurity threats and incidents and report such incidents to the
board of directors and the Audit Committee when appropriate.

As of the date of this Form 10-K, we are not aware of cybersecurity incidents that have materially affected or are reasonably likely to materially
affect the Company, including our business, strategy, results of operations, or financial condition at this time. For further discussion of the risks associated
with cybersecurity incidents, see Part I, Item 1A of this Form 10-K under the risk factor entitled "We rely significantly on information technology and any
failure, inadequacy, interruption or security lapse of that technology, including any cybersecurity incidents, could harm our ability to operate our business
effectively."

Item 2. Properties

We conduct all of our administrative activities for Eton Pharmaceuticals, Inc. at our 5,507 square foot leased office space located at 21925 W.

Field Parkway, Suite 235, Deer Park, Illinois 60010. The lease for this facility expires in March 2025.

We consider our current facilities suitable and adequate to meet our current needs.

Item 3. Legal Proceedings

None.

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

Market Information

PART II

Our  common  stock  is  listed  on  the  Nasdaq  Global  Market  under  the  symbol  “ETON.”  The  closing  price  of  our  common  stock  on  the  Nasdaq

Global Market on December 29, 2023, the last trading date in 2023, was $4.38 per share.

Record Holders

As of March 5, 2024, we had six holders of record of our common stock. The actual number of stockholders is greater than this number of record
holders  and  includes  stockholders  who  are  beneficial  owners  but  whose  shares  are  held  in  street  name  by  brokers  and  other  nominees.  This  number  of
holders of record also does not include stockholders whose shares may be held in trust by other entities. The closing price per share of our common stock
on March 5, 2024 was $4.38.

Dividends

We have never declared or paid a cash dividend on our common stock. We currently intend to retain any future earnings and do not expect to pay
any dividends in the foreseeable future. Any future determinations to pay cash dividends will be made at the discretion of our board of directors, subject to
applicable  laws,  and  will  depend  on  a  number  of  factors,  including  our  financial  condition,  results  of  operations,  capital  requirements,  contractual
restrictions, general business conditions, and any other factors that our board of directors may deem relevant.

Purchases of Equity Securities

None.

Item 6. [Reserved]

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

You should read the following discussion and analysis together with our financial statements and the related notes thereto included in “Item 8.
Financial Statements and Supplementary Data” in this Annual Report on Form 10-K. The following discussion contains forward-looking statements that
involve risks and uncertainties. For a complete discussion of forward-looking statements, see the section above entitled “Forward Looking Statements.”
Our actual results could differ materially from those expressed or implied in any forward-looking statements as a result of various factors, including those
set forth under the caption “Item 1A. Risk Factors.”

Overview

We are an innovative pharmaceutical company focused on developing and commercializing treatments for rare diseases. Since the formation of
our company in 2017, we have used our expertise in business development, regulatory, and product development to assemble a diversified portfolio of rare
disease products.

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Results of Operations

To date, we have realized revenues from the sale of our neurology products portfolio in 2021, a licensing arrangement on our EM-100 product that
was sold to Bausch Health, and the launch of our Biorphen®, ALKINDI SPRINKLE®, and Carglumic Acid products in December 2019, December 2020,
and  December  2021,  respectively.  We  also  realized  revenue  from  the  sale  of  our  hospital  products  portfolio  to  Dr.  Reddy’s  Laboratories  S.A.  (“Dr.
Reddy's”) in 2022, the launch of our Betaine Anhydrous and product in May 2023, the sale of our neurology product royalty streams to Azurity in June
2023,  and  the  launch  of  our  Nitisinone  product  in  February  2024.  We  anticipate  successfully  growing  sales  of  our  commercialized  products  and
commercializing additional product candidates in 2024 and beyond.

Year Ended December 31, 2023 Compared to Year Ended December 31, 2022

Net  revenues  of  $31.6  million  in  2023  included  $5.5  million  of  licensing  revenue  from  the  sale  of  our  neurology  product  royalty  streams  to
Azurity in June 2023. Net revenue of $21.3 million in 2022 included $10.0 million of licensing revenue, consisting of $5.0 million from Azurity on the
launch  of  Zonisamide  and  $5.0  million  from  the  hospital  products  sale  to  Dr.  Reddy’s.  Net  product  revenue  of  $26.1  million  in  2023  increased  by
$14.9 million from $11.3 million in 2022 primarily as a result of growth in ALKINDI SPRINKLE® and Carglumic Acid.

Our  2023  gross  profit  of  $21.1  million  was  up  from  $14.3  million  in  2022  primarily  as  a  result  of  growth  in  ALKINDI  SPRINKLE®  and

Carglumic Acid, as well as the sale of our neurology product royalty streams to Azurity.

For the years ended December 31, 2023 and 2022, we incurred $3.3 million and $4.0 million of R&D expenses, respectively, and $18.9 million
and  $18.6  million  of  general  and  administrative  (“G&A”)  expenses,  respectively.  The  $0.7  million  decrease  in  R&D  was  driven  by  hospital  products
development  in  2022  that  were  sold  and  therefore  did  not  recur  in  2023.  The  $0.3  million  increase  in  G&A  expenses  was  primarily  due  to  personnel
additions  to  support  our  growing  business.  We  incurred  a  net  loss  of  $0.9  million  and  $9.0  million  for  the  years  ended  December  31,  2023  and  2022,
respectively.

General and Administrative Expenses

G&A expenses consist primarily of employee compensation expenses, selling and adverting/promotional expenses, legal and professional fees,
business insurance and FDA fees associated with approved products. We anticipate that our G&A expenses will increase to support our business growth,
particularly with respect to sales and marketing activities and additional personnel.

Research and Development Expenses

We currently have nine employees that support our overall product development function. The majority of our spend in R&D is to third parties we

contract with to develop and test our products and development of partner milestone payments.

Year Ended December 31, 2022 Compared to Year Ended December 31, 2021

Net  revenues  of  $21.3  million  in  2022  included  $10.0  million  of  licensing  revenue,  consisting  of  $5.0  million  from  Azurity  on  the  launch  of
Zonisamide  and  $5.0  million  from  the  sale  of  our  hospital  products  to  Dr.  Reddy’s.  Net  revenues  of  $21.8  million  in  2021  included  $19.0  million  of
licensing revenue, including $17.0 million from our neurology products sold to Azurity.

Our 2022 gross profit of $14.3 million was down from $19.0 million in 2021, primarily as a result of decreased licensing revenue.

For the years ended December 31, 2022 and 2021, we incurred $4.0 million and $6.2 million of R&D expenses, respectively, and $18.6 million
and $14.3 million of G&A expenses, respectively. The $2.2 million decrease in R&D was driven by milestone payments on a number of our products in
development in 2021 that did not recur in 2022. The $4.3 million increase in G&A expenses was primarily due to personnel additions and increased sales
and marketing initiatives to support our growing business. We incurred a net loss of $9.0 million and $2.0 million for the years ended December 31, 2022
and 2021, respectively.

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General and Administrative Expenses

G&A expenses consisted primarily of employee compensation expenses, selling and adverting/promotional expenses, legal and professional fees,

business insurance and FDA fees. We anticipate that our G&A expenses will increase to support our business growth.

Research and Development Expenses

We  had  eight  employees  that  supported  our  overall  product  development  function.  The  majority  of  our  spend  in  R&D  was  to  third  parties  we
contracted with to develop and test our products in addition to development partner milestone payments. We closed our internal R&D facility in May 2021.

Liquidity and Capital Resources

As of December 31, 2023, we had total assets of $31.7 million, cash and cash equivalents of $21.4 million and working capital of $10.6 million.
We  believe  that  our  existing  funding  and  revenues  from  our  approved  products  will  be  sufficient  for  at  least  the  next  twelve  months  of  our  operations.
However,  our  projected  estimates  for  our  product  development  spending,  administrative  expenses  and  our  working  capital  requirements  could  be
inaccurate, or we may experience growth more quickly or on a larger scale than we expect, any of which could result in the depletion of capital resources
more rapidly than anticipated and could require us to seek additional financing earlier than we expect to support our operations.

Cash Flows

The following table sets forth a summary of our cash flows for the years ended December 31, 2023, 2022 and 2021 (in thousands):

Net cash provided by (used in) operating activities
Net cash used in investing activities
Net cash flows (used in) provided by financing activities

Net change in cash and cash equivalents

Year ended

  December 31, 2023   
  $

Year ended
December 31,
2022

Year ended
December 31,
2021

4,821    $
(2,788)    
(134)    
1,899    $

(4,721)
(2,559)
391 
(6,889)

6,815    $
(775)    
(957)    
5,083    $

  $

The increase in cash provided by operating activities is primarily a result of increased revenue. Investing activities in 2023 consist of licensing
fees  for  Nitisinone,  while  investing  activities  in  2022  and  2021  consist  primarily  of  licensing  fees  for  Betaine  and  Carglumic  Acid,  respectively.  The
increase in cash used in financing activities is primarily the result of scheduled payments on our outstanding loan to SWK Holdings. See Note 5 — Debt
for additional notes to Financial Statement.

Critical Accounting Policies

Our financial statements are prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”). The
preparation  of  our  financial  statements  and  related  disclosures  requires  us  to  make  estimates  and  judgments  that  affect  the  reported  amounts  of  assets,
liabilities, costs and expenses in our financial statements. We base our estimates on historical experience, known trends and events and various other factors
that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and
liabilities that are not readily apparent from other sources. We evaluate our estimates and assumptions on an ongoing basis. Our actual results may differ
from these estimates under different assumptions or conditions.

While our significant accounting policies are described in more detail in Note 3 to our financial statements included herein, we believe that the

following accounting policies are those most critical to the judgments and estimates used in the preparation of our financial statements.

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Revenue Recognition for Contracts with Customers

We account for contracts with our customers in accordance with Accounting Standards Codification (“ASC”) 606 — Revenue from Contracts with
Customers. ASC 606 applies to all contracts with customers, except for contracts that are within the scope of other standards. Under ASC 606, an entity
recognizes revenue when its customer obtains control of promised goods or services, in an amount that reflects the consideration which the entity expects to
receive in exchange for those goods or services. To determine revenue recognition for arrangements that an entity determines are within the scope of ASC
606, the entity performs the following five steps: (i) identify the contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii)
determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when (or as) the
entity satisfies a performance obligation.

At contract inception, once we determine the contract falls within the scope of ASC 606, we assess the goods or services promised within each
contract  and  determines  those  that  are  performance  obligations  and  assesses  whether  each  promised  good  or  service  is  distinct.  We  then  recognize  as
revenue the amount of the transaction price that is allocated to the respective performance obligation when (or as) the performance obligation is satisfied.
Arrangements that include rights to additional goods or services that are exercisable at a customer’s discretion are generally considered options. We assess
whether these options provide a material right to the customer and, if so, they are considered performance obligations. The exercise of a material right is
accounted for as a contract modification for accounting purposes.

We  recognize  as  revenue  the  amount  of  the  transaction  price  that  is  allocated  to  the  respective  performance  obligation  when  (or  as)  each
performance obligation is satisfied at a point in time or over time, and if over time this is based on the use of an output or input method. Any amounts
received  prior  to  revenue  recognition  will  be  recorded  as  deferred  revenue.  Amounts  expected  to  be  recognized  as  revenue  within  the  twelve  months
following the balance sheet date will be classified as current portion of deferred revenue in our balance sheets. Amounts not expected to be recognized as
revenue within the twelve months following the balance sheet date are classified as long-term deferred revenue, net of current portion.

Milestone Payments – If a commercial contract arrangement includes development and regulatory milestone payments, we will evaluate whether
the  milestone  conditions  have  been  achieved  and  if  it  is  probable  that  a  significant  revenue  reversal  would  not  occur  before  recognizing  the  associated
revenue. Milestone payments that are not within our control or the licensee’s control, such as regulatory approvals, are generally not considered probable of
being achieved until those approvals are received.

Royalties – For arrangements that include sales-based royalties, including milestone payments based on a level of sales, which are the result of a
customer-vendor relationship and for which the license is deemed to be the predominant item to which the royalties relate, we will recognize revenue at the
later of (i) when the related sales occur, or (ii) when the performance obligation to which some or all of the royalty has been allocated has been satisfied or
partially satisfied.

Significant Financing Component – In determining the transaction price, we will adjust consideration for the effects of the time value of money if

the expected period between payment by the licensees and the transfer of the promised goods or services to the licensees will be more than one year.

The Company sells its ALKINDI SPRINKLE®, Carglumic Acid, Betaine Anhydrous, and Nitisinone products to pharmacy distributor customers
which  provide  order  fulfilment  and  inventory  storage/distribution  services.  The  Company  may  sell  products  in  the  U.S.  to  wholesale  pharmaceutical
distributors, who then sell the product to hospitals and other end-user customers. Sales to wholesalers are made pursuant to purchase orders subject to the
terms  of  a  master  agreement,  and  delivery  of  individual  shipments  represent  performance  obligations  under  each  purchase  order.  The  Company  uses  a
third-party logistics (“3PL”) vendor to process and fulfill orders and has concluded it is the principal in the sales to wholesalers because it controls access
to the 3PL vendor services rendered and directs the 3PL vendor activities. The Company has no significant obligations to wholesalers to generate pull-
through sales.

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For its ALKINDI SPRINKLE®, Carglumic Acid, Betaine Anhydrous, and Nitisinone products, the Company bills at the initial product list price
which are subject to offsets for patient co-pay assistance and potential state Medicaid reimbursements which are recorded as a reduction of net revenues at
the date of sale/shipment. Selling prices initially billed to wholesalers are subject to discounts for prompt payment and subsequent chargebacks when the
wholesalers  sell  products  at  negotiated  discounted  prices  to  members  of  certain  group  purchasing  organizations  (“GPOs”)  and  government  programs.
Because of the shelf life of the product and the Company’s lengthy return period, there may be a significant period of time between when the product is
shipped and when it issues credits on returned product.

The Company estimates the transaction price when it receives each purchase order taking into account the expected reductions of the selling price
initially billed to the wholesaler/distributor arising from all of the above factors. The Company has developed estimates for future returns and chargebacks
and the impact of other discounts and fees it pays, although ALKINDI SPRINKLE®, Carglumic Acid, Betaine Anhydrous, and Nitisinone sales are not
subject to returns. When estimating these adjustments to the transaction price, the Company reduces it sufficiently to be able to assert that it is probable that
there will be no significant reversal of revenue when the ultimate adjustment amounts are known.

The  Company  stores  its  ALKINDI  SPRINKLE®,  Carglumic  Acid,  Betaine  Anhydrous,  and  Nitisinone  inventory  at  its  pharmacy  distributor
customer locations, and sales are recorded when stock is pulled and shipped to fulfill specific patient orders. The Company recognizes revenue and cost of
sales from products sold to wholesalers upon delivery to the wholesaler location. At that time, the wholesalers take control of the product as they take title,
bear the risk of loss of ownership and have an enforceable obligation to pay the Company. They also have the ability to direct sales of product to their
customers on terms and at prices they negotiate. Although wholesalers have product return rights, the Company does not believe they have a significant
incentive to return the product.

Upon  recognition  of  revenue  from  product  sales,  the  estimated  amounts  of  credit  for  product  returns,  chargebacks,  distribution  fees,  prompt
payment  discounts,  state  Medicaid  and  GPO  fees  are  included  in  sales  reserves,  accrued  liabilities  and  net  accounts  receivable.  The  Company  monitors
actual product returns, chargebacks, discounts and fees subsequent to the sale. If these amounts end up differing from its estimates, it will make adjustments
to these allowances, which are applied to increase or reduce product sales revenue and earnings in the period of adjustment.

Stock-Based Compensation

The  Company  accounts  for  stock-based  compensation  under  the  provisions  of  ASC  718  Compensation  –  Stock  Compensation.  The  guidance
under ASC 718 requires companies to estimate the fair value of the stock-based compensation awards on the date of grant and record expense over the
related service periods, which are generally the vesting period of the equity awards. Compensation expense is recognized over the period during which
services are rendered by consultants and non-employees until completed. At the end of each financial reporting period prior to completion of the service,
the fair value of these awards is remeasured using the then-current fair value of our common stock and updated assumption inputs in the Black-Scholes
option-pricing model (“BSM”).

The  Company  estimates  the  fair  value  of  stock-based  option  awards  using  the  BSM.  The  BSM  requires  the  input  of  subjective  assumptions,
including the expected stock price volatility, the calculation of expected term, forfeitures and the fair value of the underlying common stock on the date of
grant, among other inputs. The risk-free interest rate was determined from the implied yields for zero-coupon U.S. government issues with a remaining
term approximating the expected life of the options or warrants. Dividends on common stock are assumed to be zero for the BSM valuation of the stock
options. The expected term of stock options granted is based on vesting periods and the contractual life of the options. Expected volatilities are based on the
Company's historical volatility subsequent to our IPO, which we believe represents the most accurate basis for estimating expected future volatility under
the current conditions. We account for forfeitures as they occur.

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Research and Development Expenses

R&D expenses include both internal R&D activities and external contracted services. Internal R&D activity expenses include salaries, benefits and
stock-based  compensation  and  other  costs  to  support  our  R&D  operations.  External  contracted  services  include  product  development  efforts  including
certain product licensor milestone payments, clinical trial activities, manufacturing and control-related activities and regulatory costs. R&D expenses are
charged to operations as incurred. We review and accrue R&D expenses based on services performed and rely upon estimates of those costs applicable to
the  stage  of  completion  of  each  project.  Significant  judgments  and  estimates  are  made  in  determining  the  accrued  balances  at  the  end  of  any  reporting
period. Actual results could differ from our estimates.

Upfront payments and milestone payments made for the licensing of technology for products that are not yet approved by the FDA are expensed
as  R&D  in  the  period  in  which  they  are  incurred.  Nonrefundable  advance  payments  for  goods  or  services  to  be  received  in  the  future  for  use  in  R&D
activities are recorded as prepaid expenses and are expensed as the related goods are delivered or the services are performed.

Off-Balance Sheet Transactions

We do not have any off-balance sheet transactions.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk

The  primary  objective  of  our  investment  activities  is  to  preserve  capital.  We  do  not  utilize  hedging  contracts  or  similar  instruments.  We  are
exposed to certain market risks relating primarily to interest rate risk on our cash and cash equivalents and risks relating to the financial viability of the
institutions which hold our capital and through which we have invested our funds. We manage such risks by investing in short-term, liquid, highly rated
instruments. As of December 31, 2023, our cash equivalents only included cash deposits at our bank. From time to time, we do have cash investments in
short-term  money  market  or  U.S.  treasury  bills.  We  do  not  believe  we  have  any  material  exposure  to  interest  rate  risk  in  the  current  interest  rate
environment and the short duration of the invested funds we hold. Declines in interest rates would reduce our investment income but would not have a
material effect on our financial condition or results of operations. We do not currently have exposure to foreign currency risk.

Item 8. Financial Statements and Supplementary Data

Report of Independent Registered Public Accounting Firm (PCAOB ID: 170)

ETON PHARMACEUTICALS, INC.
INDEX TO FINANCIAL STATEMENTS

Balance Sheets

Statements of Operations

Statements of Stockholders’ Equity

Statements of Cash Flows

Notes to Financial Statements

50

51

53

54

55

56

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of Eton Pharmaceuticals, Inc.

Opinion on the Financial Statements

We  have  audited  the  accompanying  balance  sheets  of  Eton  Pharmaceuticals,  Inc.  (the  “Company”)  as  of  December  31,  2023  and  2022,  the  related
statements of operations, stockholders’ equity, and cash flows for each of the three years in the period ended December 31, 2023, and the related notes
(collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position
of the Company as of December 31, 2023 and 2022, and the results of its operations and its cash flows for each of the three years in the period ended
December 31, 2023, in conformity with accounting principles generally accepted in the United States of America.

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 Public Company Accounting Oversight Board (United States) (“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. The Company is not required to have, nor
were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits we are required to obtain an understanding of
internal  control  over  financial  reporting  but  not  for  the  purpose  of  expressing  an  opinion  on  the  effectiveness  of  the  Company’s  internal  control  over
financial reporting. Accordingly, we express no such opinion.

Our  audits  included  performing  procedures  to  assess  the  risks  of  material  misstatement  of  the  financial  statements,  whether  due  to  error  or  fraud,  and
performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in
the  financial  statements.  Our  audits  also  included  evaluating  the  accounting  principles  used  and  significant  estimates  made  by  management,  as  well  as
evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

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

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Product Sales Deductions

Critical Audit Matter Description

As described in Note 3 to the financial statements under the caption “Revenue Recognition for Contracts with Customers,” revenues from product sales are
recognized net of reductions for estimated returns, chargebacks, distribution fees, prompt payment discounts, state Medicaid and GPO fees (collectively,
“sales deductions”), which are established at the time of sale.

Auditing the estimation of sales deductions was challenging because of the limited sales history of the Company’s products and the subjectivity of certain
assumptions  required  to  estimate  those  amounts.  The  product  sales  deductions  are  estimated  based  on  current  contractual  and  statutory  requirements,
market  events  and  trends,  and  internal  and  external  historical  data.  Specifically,  management  estimates  potential  chargebacks,  which  relate  to  price
reductions below the estimated sales price that the wholesalers provide to certain customers, based on historical industry data for competing products and
adjusted for actual historical experience. In addition, management estimates its provision for product returns based on prior experience with similar product
launches  and  considers  other  factors  such  as  levels  of  inventory  in  the  distribution  channel,  forecasted  buying  patterns,  product  dating  and  expiration
period.

How the Critical Audit Matter Was Addressed in the Audit

To test management’s estimated product sales deductions, we obtained management’s calculations for the respective estimates and performed the following
procedures, among others. We tested management’s estimation process for determining of product sales discounts accruals by developing an independent
expectation of the estimated accrual rate, including a comparison of rates used in management’s forecast to rates in the underlying contracts and performing
a retrospective review of assumptions to actual activity. In addition, we assessed subsequent events to determine whether there was any new information
that would require adjustment to the initial accruals, evaluated trends in actual sales and discount accrual balances, and compared cash receipts to product
sales. We also examined terms and conditions for a sample of contracts with the Company’s customers, tested a sample of credits issued and payments
made throughout the year and agreed rates to underlying contract terms.

/s/ KMJ Corbin & Company LLP

We have served as the Company’s auditor since 2018.

Irvine, California
March 14, 2024

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Eton Pharmaceuticals, Inc.
BALANCE SHEETS
(in thousands, except share and per share amounts)

Assets
Current assets:

Cash and cash equivalents
Accounts receivable, net
Inventories
Prepaid expenses and other current assets

Total current assets

Property and equipment, net
Intangible assets, net
Operating lease right-of-use assets, net
Other long-term assets, net

Total assets

Liabilities and stockholders’ equity
Current liabilities:
Accounts payable
Current portion of long-term debt, net of discount
Accrued liabilities
Total current liabilities

Long-term debt, net of discount and including accrued fees
Operating lease liabilities, net of current portion

December 31,
2023

December 31,
2022

  $

  $

  $

21,388    $
3,411     
911     
1,129     
26,839     

58     
4,739     
92     
12     
31,740    $

1,848    $
5,380     
9,013     
16,241     

—     
22     

16,305 
1,852 
557 
1,290 
20,004 

72 
4,754 
188 
12 
25,030 

1,766 
1,033 
3,662 
6,461 

5,384 
107 

Total liabilities

16,263     

11,952 

Commitments and contingencies (Note 14)
Stockholders’ equity
Common stock, $0.001 par value; 50,000,000 shares authorized; 25,688,062 and 25,353,119 shares issued
and outstanding at December 31, 2023 and 2022, respectively
Additional paid-in capital
Accumulated deficit
Total stockholders’ equity

26     
119,521     
(104,070)    
15,477     

25 
116,187 
(103,134)
13,078 

Total liabilities and stockholders’ equity

  $

31,740    $

25,030 

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

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Revenues:

Licensing revenue
Product sales and royalties, net

Total net revenues

Cost of Sales:

Licensing revenue
Product sales and royalties

Total cost of sales

Gross profit

Operating expenses:

Research and development
General and administrative

Total operating expenses

Loss from operations

Other income (expense):

Interest and other income (expense), net
Gain on PPP loan forgiveness
Gain on equipment sale

Loss before income tax expense

Income tax expense

Net loss
Net loss per share, basic and diluted

Eton Pharmaceuticals, Inc.
STATEMENTS OF OPERATIONS
(In thousands, except per share amounts)

December 31,
2023

For the years ended
December 31,
2022

December 31,
2021

5,500    $
26,142     
31,642     

1,000     
9,581     
10,581     

10,000    $
11,251     
21,251     

1,640     
5,293     
6,933     

19,000 
2,832 
21,832 

1,500 
1,327 
2,827 

21,061     

14,318     

19,005 

3,322     
18,931     
22,253     

3,996     
18,582     
22,578     

(1,192)    

(8,260)    

503     
—     
—     

(689)    

247     

(936)   $
(0.04)   $

(761)    
—     
—     

(9,021)    

—     

(9,021)   $
(0.36)   $

6,235 
14,265 
20,500 

(1,495)

(1,006)
365 
181 

(1,955)

— 

(1,955)
(0.08)

25,207 

  $

  $
  $

Weighted average number of common shares outstanding, basic and diluted

25,645     

25,146     

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

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Eton Pharmaceuticals, Inc.
STATEMENTS OF STOCKHOLDERS’ EQUITY
(in thousands, except share amounts)

Balances at December 31, 2020

    24,312,808    $

24    $

107,797    $

(92,158)   $

15,663 

Common Stock

Shares

    Amount

Additional Paid-
in
Capital

    Accumulated    
Deficit

Total
Stockholders’
Equity

—     

—     

3,381     

Stock-based compensation

Stock option exercises

Employee stock purchase plan

Common stock issued related to restricted stock units

Stock warrant exercises

Net loss

144,233     

49,155     

25,000     

94,808     

—     

Balances at December 31, 2021

    24,626,004     

Stock-based compensation

Stock option exercises

Employee stock purchase plan

Stock warrant exercises

Net loss

—     

25,000     

69,884     

632,231     

—     

Balances at December 31, 2022

    25,353,119     

Stock-based compensation

Employee stock purchase plan

—     

86,782     

Stock option exercises and vesting of restricted stock units

299,028     

Shares withheld related to net share settlement of stock option
exercises

Net loss

(50,867)    

—     

1     

—     

—     

—     

—     

25     

—     

—     

—     

—     

—     

25     

—     

—     

1     

—     

—     

—     

—     

—     

—     

—     

3,381 

339 

202 

— 

— 

(1,955)    

(1,955)

338     

202     

—     

—     

—     

111,718     

(94,113)   $

17,630 

4,218     

35     

171     

45     

—     

—     

—     

—     

—     

4,218 

35 

171 

45 

(9,021)    

(9,021)

116,187     

(103,134)   $

13,078 

3,137     

229     

148     

—     

—     

—     

(180)    

—     

—     

(936)    

3,137 

229 

149 

(180)

(936)

Balances at December 31, 2023

    25,688,062    $

26    $

119,521    $

(104,070)   $

15,477 

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

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Eton Pharmaceuticals, Inc.
STATEMENTS OF CASH FLOWS
(In thousands)

Cash flows from operating activities

Net loss

Adjustments to reconcile net loss to net cash provided by (used in) operating
activities:

Stock-based compensation
Depreciation and amortization
Debt discount amortization
Gain on forgiveness of PPP loan
Gain on sale of equipment

Changes in operating assets and liabilities:

Accounts receivable
Inventories
Prepaid expenses and other assets
Accounts payable
Accrued liabilities

Net cash provided by (used in) operating activities

Cash used in investing activities

Proceeds from sale of equipment
Purchases of property and equipment
Purchase of product licensing rights

Net cash used in investing activities

Cash flows from financing activities

Debt paydown
Net proceeds from employee stock purchase plan and stock option and stock
warrant exercises
Net cash (used in) provided by financing activities

Change in cash and cash equivalents

Cash and cash equivalents at beginning of year
Cash and cash equivalents at end of year

Supplemental disclosures of cash flow information
Cash paid for interest
Cash paid for income taxes

Supplemental disclosures of non-cash investing and financing activities:
Adjustment of operating lease right-of-use assets and liabilities due to tenant
allowance
Right-of-use assets obtained in exchange for lease liabilities

  $

  $
  $

  $
  $

December 31,
2023

For the years ended
December 31,
2022

December 31,
2021

  $

(936)   $

(9,021)   $

(1,955)

3,137     
901     
117     
—     
—     

(1,559)    
(354)    
161     
53     
5,295     
6,815     

—     
—     
(775)    
(775)    

(1,155)    

198     
(957)    

5,083     
16,305     
21,388    $

842    $
247    $

29    $
—    $

4,218     
1,774     
127     
—     
—     

3,619     
(7)    
1,902     
(8)    
2,217     
4,821     

—     
(38)    
(2,750)    
(2,788)    

(385)    

251     
(134)    

1,899     
14,406     
16,305    $

730    $
—    $

—    $
188    $

3,381 
462 
148 
(365)
(181)

(5,423)
692 
(1,026)
(570)
116 
(4,721)

700 
(9)
(3,250)
(2,559)

(150)

541 
391 

(6,889)
21,295 
14,406 

815 
— 

— 
— 

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

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Note 1 — Company Overview

Eton Pharmaceuticals, Inc.
NOTES TO FINANCIAL STATEMENTS
(in thousands, except share and per share amounts)

Eton is an innovative pharmaceutical company focused on developing and commercializing treatments for rare diseases. The Company currently
has four commercial rare disease products: ALKINDI SPRINKLE® for the treatment of adrenocortical insufficiency; Carglumic Acid for the treatment of
hyperammonemia  due  to  NAGS  deficiency;  Betaine  Anhydrous  for  the  treatment  of  homocystinuria;  and  Nitisinone  for  the  treatment  of  hereditary
tyrosinemia  type  1  (HT-1).  The  Company  has  three  additional  product  candidates  in  late-stage  development:  ET-400,  ET-600,  and  ZENEO®
hydrocortisone autoinjector.

Note 2 — Liquidity Considerations

As of December 31, 2023, the Company had an accumulated deficit of $104,070 and for the year ended December 31, 2023 the Company had a

net loss of $936.

To  date,  the  Company  has  generated  revenues  from  multiple  products  and  expects  further  growth  in  2024  and  beyond  in  accordance  with
additional  market  penetration  from  these  products  plus  revenues  from  additional  products  where  it  anticipates  FDA  approval.  The  Company  currently
believes its existing cash and cash equivalents of $21,388 as of December 31, 2023 will be sufficient to fund its operating expenses and capital expenditure
requirements for at least the next twelve months from the date of issuance of these financial statements. This estimate is based on the Company’s current
assumptions, including assumptions relating to estimated sales and its ability to manage its spending. The Company could use its available capital resources
sooner than currently expected. Accordingly, the Company could seek to obtain additional capital through equity financings, the issuance of debt or other
arrangements. However, there can be no assurance that the Company will be able to raise additional capital if needed or under acceptable terms, if at all.
The sale of additional equity may dilute existing stockholders and newly issued shares may contain senior rights and preferences compared to currently
outstanding common shares. The Company’s existing long-term debt obligation contains covenants and limits the Company’s ability to pay dividends or
make other distributions to stockholders. If the Company experiences delays in product sales growth and completing its product development and obtaining
regulatory  approval  for  its  other  product  candidates  and  is  unable  to  obtain  such  additional  financing,  operations  would  need  to  be  scaled  back  or
discontinued.

Note 3 — Summary of Significant Accounting Policies

Basis of Presentation

The Company has prepared the accompanying financial statements in accordance with GAAP.

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Eton Pharmaceuticals, Inc.
NOTES TO FINANCIAL STATEMENTS
(in thousands, except share and per share amounts)

Note 3 — Summary of Significant Accounting Policies (continued)

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,  the  disclosure  of  contingent  assets  and  liabilities  at  the  date  of  the  financial  statements  and  the  reported  amounts  of
revenue and expenses during the reporting periods. Significant estimates and assumptions reflected in these financial statements include, but are not limited
to, provisions for uncollectible receivables, chargebacks and sales returns, Medicaid program rebates, valuation of inventories, useful lives of assets and the
recoverability of long-lived assets, valuation of deferred tax assets, the accrual of research and development expenses, and the valuation of common stock,
stock options, warrants, and restricted stock units (“RSUs”). Estimates are periodically reviewed in light of changes in circumstances, facts and experience.
Changes in estimates are recorded in the period in which they become known. Actual results could differ from those estimates or assumptions.

Segment Information

The  Company  operates  the  business  on  the  basis  of  a  single  reportable  segment,  which  is  the  business  of  developing  and  commercializing

prescription drug products. The Company’s chief operating decision-maker is the CEO, who evaluates the Company as a single operating segment.

Cash and Cash Equivalents

The Company considers all highly liquid investments with an original maturity of three months or less to be cash equivalents. All cash and cash
equivalents  are  held  in  U.S.  financial  institutions  or  invested  in  short-term  U.S.  treasury  bills  or  high-grade  money  market  funds.  From  time  to  time,
amounts deposited with its bank exceed federally insured limits. The Company believes the associated credit risk to be minimal.

Accounts Receivable

Accounts  receivable  are  recorded  at  the  invoiced  amount  and  are  non-interest  bearing.  Accounts  receivable  are  recorded  net  of  allowances  for
doubtful  accounts,  cash  discounts  for  prompt  payment,  distribution  fees,  chargebacks  and  returns  and  allowances.  The  Company  considers  historical
collection rates and the current financial status of its customers, as well as macroeconomic and industry-specific factors when evaluating potential credit
losses. Historically, the Company's accounts receivable balances have been highly concentrated with a select number of customers, consisting primarily of
specialty pharmacies and large wholesale pharmaceutical distributors. Given the size and creditworthiness of these customers, we have not experienced and
do not expect to experience material credit losses. The total for these reserves amounted to $129 and $262 as of December 31, 2023 and 2022, respectively.

Inventories

The  Company  values  its  inventories  at  the  lower  of  cost  or  net  realizable  value  using  the  first-in, first-out  method  of  valuation.  The  Company
reviews its inventories for potential excess or obsolete issues on an ongoing basis and records a write-down if an impairment is identified. Inventories at
December 31, 2023 and 2022 consist primarily of purchased finished goods. At December 31, 2023 and 2022, inventories are shown net of a reserve for
ALKINDI SPRINKLE® inventory due to the risk of expiry prior to being sold. There was an inventory reserve of $76 and $62 at December 31, 2023 and
2022, respectively.

Property and Equipment

Property  and  equipment  are  stated  at  cost.  Depreciation  of  property  and  equipment  is  computed  utilizing  the  straight-line  method  based  on  the
following  estimated  useful  lives.  Computer  hardware  and  software  is  depreciated  over  three  years.  Equipment,  furniture  and  fixtures  is  depreciated
over five years. Leasehold improvements are amortized over their estimated useful lives or the remaining lease term, whichever is shorter. Construction in
progress is capitalized but not depreciated until it is placed into service.

Maintenance and repairs are charged to expense as incurred, while renewals and improvements are capitalized.

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Eton Pharmaceuticals, Inc.
NOTES TO FINANCIAL STATEMENTS
(in thousands, except share and per share amounts)

Note 3 — Summary of Significant Accounting Policies (continued)

Intangible Assets

The Company capitalizes payments it makes for licensed products when the payment is based on FDA approval for the product and the cost is
recoverable based on expected future cash flows from the product. The cost is amortized on a straight-line basis over the estimated useful life of the product
commencing on the approval date in accordance with Accounting Standards Codification (“ASC”) 350 — Intangibles - Goodwill and Other. In November
2021, the Company purchased the rights for its Carglumic Acid product for $3,250 and that cost is being amortized over ten years. A $750 payment related
to the approval of Biorphen had been capitalized in 2019 and that cost was being amortized over five years. As a result of the Biorphen sale to Dr. Reddy’s
(see Note 14), amortization of that asset was accelerated to record $275 of expense in June 2022 and the remaining $75 of expense in the last six months of
the  year  ended  December  31,  2022.  A  $750  payment  related  to  the  approval  of  Rezipres®  had  been  capitalized  in  Q1  2022  and  that  cost  was  being
amortized over five years. As a result of the sale to Dr. Reddy’s, amortization of the Rezipres® asset was accelerated to record the remaining $738 in the
three-month period ended June 30, 2022. In September 2022, the Company purchased the rights for its Betaine Anhydrous product for $2,125 and that cost
is being amortized over five years. In October 2023, the Company purchased the rights for its Nitisinone product for $650 and that cost is being amortized
over five years. The intangible assets, net on the Company’s balance sheet reflected $1,286 of accumulated amortization as of December 31, 2023.  The
Company recorded $790, $1,617, and $204 of amortization expense for the years ended December 31, 2023, 2022 and 2021 respectively. The table below
shows the estimated remaining amortization for these products for each of the five years from 2024 to 2028 and thereafter.

Year

2024
2025
2026
2027
2028
Thereafter
Total estimated amortization expense

Impairment of Long-Lived Assets

Amortization
Expense

880 
880 
880 
756 
423 
920 
4,739 

  $

  $

Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not
be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to estimated undiscounted
future cash flows expected to be generated by the asset. If the carrying amount of an asset exceeds its estimated future cash flows, an impairment charge is
recognized in the Company’s statements of operations for the amount by which the carrying amount of the asset exceeds the fair value of the asset. No
impairment was recognized during the years ended December 31, 2023, 2022 and 2021.

Debt Issuance Costs and Debt Discount and Detachable Debt-Related Warrants

Costs  incurred  to  issue  debt  are  deferred  and  recorded  as  a  reduction  to  the  debt  balance  in  the  accompanying  balance  sheets.  The  Company
amortizes debt issuance costs over the expected term of the related debt using the effective interest method. Debt discounts relate to the relative fair value
of warrants issued in conjunction with the debt and are also recorded as a reduction to the debt balance and accreted over the expected term of the debt to
interest expense using the effective interest method.

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Eton Pharmaceuticals, Inc.
NOTES TO FINANCIAL STATEMENTS
(in thousands, except share and per share amounts)

Note 3 — Summary of Significant Accounting Policies (continued)

Leases

The Company accounts for leases in accordance with ASC Topic 842 — Leases. The Company reviews all relevant facts and circumstances of a
contract to determine if it is a lease whereby the terms of the agreement convey the right to control the direct use and receive substantially all the economic
benefits of an identified asset for a period of time in exchange for consideration. The associated right-of-use assets and lease liabilities are recognized at
lease commencement. The Company measures lease liabilities based on the present value of the lease payments over the lease term discounted using the
rate it would pay on a loan with the equivalent payments and term for the lease. The Company does not  include  the  impact  for  lease  term  options  that
would extend or terminate the lease unless it is reasonably certain that it will exercise any such options. The Company accounts for the lease components
separately from non-lease components for its operating leases.

The Company measures right-of-use assets based on the corresponding lease liabilities adjusted for (i) any prepayments made to the lessor at or
before  the  commencement  date,  (ii)  initial  direct  costs  it  incurs,  and  (iii)  any  incentives  under  the  lease.  In  addition,  the  Company  evaluates  the
recoverability of its right-of-use assets for possible impairment in accordance with its long-lived assets policy.

Operating leases are reflected on the balance sheets as operating lease right-of-use assets, current accrued liabilities and long-term operating lease

liabilities. The Company does not have any finance leases as of December 31, 2023 and 2022.

The Company commences recognizing operating lease expense when the lessor makes the underlying asset available for use by the Company and

the operating lease expense is recognized on a straight-line basis over the term of the lease. Variable lease payments are expensed as incurred.

The  Company  does  not  recognize  right-of-use  assets  or  lease  liabilities  for  leases  with  a  term  of  twelve  months  or  less;  such  lease  costs  are

recorded in the statements of operations on a straight-line basis over the lease term.

Patent Costs

All  patent-related  costs  incurred  in  connection  with  filing  and  prosecuting  patent  applications  are  expensed  as  incurred  due  to  the  uncertainty

about the successful award of a patent and the recovery of the expenditure. Amounts incurred are classified as general and administrative expenses.

Concentrations of Credit Risk, Sources of Supply and Significant Customers

The Company is subject to credit risk for its cash and cash equivalents which are invested in money market funds and U.S. treasury bills from time
to time. The Company maintains its cash and cash equivalent balances with one major commercial bank and the deposits held with the financial institution
exceed the amount of insurance provided on such deposits and is exposed to credit risk in the event of a default by the financial institutions holding its cash
and cash equivalents to the extent recorded on the balance sheets. The Company believes the associated credit risk to be minimal.

The  Company  is  dependent  on  third-party  suppliers  for  its  products  and  product  candidates.  In  particular,  the  Company  relies,  and  expects  to
continue  to  rely,  on  a  small  number  of  suppliers  to  manufacture  key  chemicals,  approved  products  and  process  its  product  candidates  as  part  of  its
development programs. These programs could be adversely affected by a significant interruption in the manufacturing process.

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Eton Pharmaceuticals, Inc.
NOTES TO FINANCIAL STATEMENTS
(in thousands, except share and per share amounts)

Note 3 — Summary of Significant Accounting Policies (continued)

The Company is also subject to credit risk from its accounts receivable related to product sales as it extends credit based on an evaluation of the
customer’s  financial  condition,  and  collateral  is  not  required.  Management  monitors  its  exposure  to  accounts  receivable  by  periodically  evaluating  the
collectability of the account receivable based on a variety of factors including the length of time the receivables are past due, the financial health of the
customer and historical experience. Based upon the review of these factors, the Company recorded no allowance for doubtful accounts at December  31,
2023 or 2022. The accounts receivable balance at December 31, 2023 and 2022 and product sales revenue recognized during the year ended December 31,
2023 and 2022 consist of sales to and amounts due from AnovoRX and Optime Cares for the Company's ALKINDI SPRINKLE®, Carglumic Acid, and
Betaine  Anhydrous  products,  as  well  as  from  AmerisourceBergen  Corporation,  Cardinal  Health  Services  and  McKesson  Corporation  for  sales  of  the
Company’s Biorphen product. AnovoRx sales made up 78.2% of 2023 total net revenues and 97.4% of net accounts receivable as of December 31, 2023,
and 45.5% of 2022 total net revenues and 79.8% of net accounts receivable as of December 31, 2022.

Revenue Recognition for Contracts with Customers

The  Company  accounts  for  contracts  with  its  customers  in  accordance  with  ASC  606  —  Revenue  from  Contracts  with  Customers.  ASC  606
applies to all contracts with customers, except for contracts that are within the scope of other standards. Under ASC 606, an entity recognizes revenue when
its customer obtains control of promised goods or services, in an amount that reflects the consideration which the entity expects to receive in exchange for
those goods or services. To determine revenue recognition for arrangements that an entity determines are within the scope of ASC 606, the entity performs
the following five steps: (i) identify the contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction
price;  (iv)  allocate  the  transaction  price  to  the  performance  obligations  in  the  contract;  and  (v)  recognize  revenue  when  (or  as)  the  entity  satisfies  a
performance obligation.

At contract inception, once the contract is determined to be within the scope of ASC 606, the Company assesses the goods or services promised
within each contract and determines those that are performance obligations and assesses whether each promised good or service is distinct. The Company
then  recognizes  as  revenue  the  amount  of  the  transaction  price  that  is  allocated  to  the  respective  performance  obligation  when  (or  as)  the  performance
obligation  is  satisfied.  Arrangements  that  include  rights  to  additional  goods  or  services  that  are  exercisable  at  a  customer’s  discretion  are  generally
considered  options.  The  Company  assesses  whether  these  options  provide  a  material  right  to  the  customer  and,  if  so,  they  are  considered  performance
obligations. The exercise of a material right is accounted for as a contract modification for accounting purposes.

The Company recognizes as revenue the amount of the transaction price that is allocated to the respective performance obligation when (or as)
each performance obligation is satisfied at a point in time or over time, and if over time this is based on the use of an output or input method. Any amounts
received  prior  to  revenue  recognition  will  be  recorded  as  deferred  revenue.  Amounts  expected  to  be  recognized  as  revenue  within  the  twelve  months
following the balance sheet date will be classified as current portion of deferred revenue in the Company’s balance sheets. Amounts not expected to be
recognized as revenue within the twelve months following the balance sheet date are classified as long-term deferred revenue, net of current portion.

Milestone Payments – If a commercial contract arrangement includes development and regulatory milestone payments, the Company will evaluate
whether  the  milestone  conditions  have  been  achieved  and  if  it  is  probable  that  a  significant  revenue  reversal  would  not  occur  before  recognizing  the
associated revenue. Milestone payments that are not within the Company’s control or the licensee’s control, such as regulatory approvals, are generally not
considered probable of being achieved until those approvals are received.

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Eton Pharmaceuticals, Inc.
NOTES TO FINANCIAL STATEMENTS
(in thousands, except share and per share amounts)

Note 3 — Summary of Significant Accounting Policies (continued)

Royalties – For arrangements that include sales-based royalties, including milestone payments based on a level of sales, which are the result of a
customer-vendor relationship and for which the license is deemed to be the predominant item to which the royalties relate, the Company will recognize
revenue at the later of (i) when the related sales occur, or (ii) when the performance obligation to which some or all of the royalty has been allocated has
been satisfied or partially satisfied.

Significant Financing Component – In determining the transaction price, the Company will adjust consideration for the effects of the time value of
money if the expected period between payment by the licensees and the transfer of the promised goods or services to the licensees will be more than one
year.

The Company sells its ALKINDI SPRINKLE®, Carglumic Acid, Betaine Anhydrous, and Nisitinone products to pharmacy distributor customers
which  provide  order  fulfilment  and  inventory  storage/distribution  services.  The  Company  may  sell  products  in  the  U.S.  to  wholesale  pharmaceutical
distributors, who then sell the product to hospitals and other end-user customers. Sales to wholesalers are made pursuant to purchase orders subject to the
terms  of  a  master  agreement,  and  delivery  of  individual  shipments  represent  performance  obligations  under  each  purchase  order.  The  Company  uses  a
third-party logistics (“3PL”) vendor to process and fulfill orders and has concluded it is the principal in the sales to wholesalers because it controls access
to the 3PL vendor services rendered and directs the 3PL vendor activities. The Company has no significant obligations to wholesalers to generate pull-
through sales.

For its ALKINDI SPRINKLE®, Carglumic Acid, Betaine Anhydrous, and Nitisinone products, the Company bills at the initial product list price
which are subject to offsets for patient co-pay assistance and potential state Medicaid reimbursements which are estimated and recorded as a reduction of
net  revenues  at  the  date  of  sale/shipment.  Selling  prices  initially  billed  to  wholesalers  are  subject  to  discounts  for  prompt  payment  and  subsequent
chargebacks  when  the  wholesalers  sell  products  at  negotiated  discounted  prices  to  members  of  certain  group  purchasing  organizations  (“GPOs”)  and
government programs. Because of the shelf life of the product and the Company’s lengthy return period, there may be a significant period of time between
when the product is shipped and when it issues credits on returned product.

The Company estimates the transaction price when it receives each purchase order taking into account the expected reductions of the selling price
initially billed to the wholesaler/distributor arising from all of the above factors. The Company has developed estimates for future returns and chargebacks
and the impact of other discounts and fees it pays. When estimating these adjustments to the transaction price, the Company reduces it sufficiently to be
able to assert that it is probable that there will be no significant reversal of revenue when the ultimate adjustment amounts are known.

The  Company  stores  its  ALKINDI  SPRINKLE®,  Carglumic  Acid,  Betaine  Anhydrous,  and  Nitisinone  inventory  at  its  pharmacy  distributor
customer locations, and sales are recorded when stock is pulled and shipped to fulfill specific patient orders. The Company may recognize revenue and cost
of sales from products sold to wholesalers upon delivery to the wholesaler location. At that time, the wholesalers take control of the product as they take
title, bear the risk of loss of ownership and have an enforceable obligation to pay the Company. They also have the ability to direct sales of product to their
customers on terms and at prices they negotiate. Although wholesalers have product return rights, the Company does not believe they have a significant
incentive to return the product.

Upon  recognition  of  revenue  from  product  sales,  the  estimated  amounts  of  credit  for  product  returns,  chargebacks,  distribution  fees,  prompt
payment  discounts,  state  Medicaid  and  GPO  fees  are  included  in  sales  reserves,  accrued  liabilities  and  net  accounts  receivable.  The  Company  monitors
actual product returns, chargebacks, discounts and fees subsequent to the sale. If these amounts end up differing from its estimates, it will make adjustments
to these allowances, which are applied to increase or reduce product sales revenue and earnings in the period of adjustment.

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Eton Pharmaceuticals, Inc.
NOTES TO FINANCIAL STATEMENTS
(in thousands, except share and per share amounts)

Note 3 — Summary of Significant Accounting Policies (continued)

Cost of Product Sales

Cost of product sales consists of the profit-sharing and royalty fees with the Company’s product licensing and development partners, the purchase
costs for finished products from third-party manufacturers, the amortization of certain intangible assets, and freight and handling/storage costs from the
Company’s  3PL  logistics  service  providers.  The  cost  of  sales  for  profit-sharing  and  royalty  fees  and  costs  for  purchased  finished  products  and  the
associated  inbound  freight  expense  is  recorded  when  the  associated  product  sale  revenue  is  recognized  in  accordance  with  the  terms  of  shipment  to
customers  while  outbound  freight  and  handling/storage  fees  charged  by  the  3PL  service  provider  are  expensed  as  they  are  incurred.  Cost  of  sales  also
reflects any write-downs or reserve adjustments for the Company’s inventories.

Research and Development Expenses

Research  and  development  (“R&D”)  expenses  include  both  internal  R&D  activities  and  external  contracted  services.  Internal  R&D  activity
expenses include salaries, benefits and stock-based compensation and other costs to support the Company’s R&D operations. External contracted services
include  product  development  efforts  such  as  certain  product  licensor  milestone  payments,  clinical  trial  activities,  manufacturing  and  control-related
activities and regulatory costs. R&D expenses are charged to operations as incurred. The Company reviews and accrues R&D expenses based on services
performed and relies upon estimates of those costs applicable to the stage of completion of each project. Significant judgments and estimates are made in
determining the accrued balances at the end of any reporting period. Actual results could differ from the Company’s estimates.

Upfront payments and milestone payments made for the licensing of technology for products that are not yet approved by the FDA are expensed
as  R&D  in  the  period  in  which  they  are  incurred.  Nonrefundable  advance  payments  for  goods  or  services  to  be  received  in  the  future  for  use  in  R&D
activities are recorded as prepaid expenses and are expensed as the related goods are delivered or the services are performed.

Income (Loss) Per Share

Basic net income (loss) per common share is computed by dividing net income (loss) attributable to common stockholders for the period by the
weighted average number of common shares outstanding during the period. Diluted net income (loss) per share is computed by dividing the net income
(loss) attributable to common stockholders for the period by the weighted average number of common and common equivalent shares, such as Series A
Preferred, unvested restricted stock, stock options and warrants that are outstanding during the period. Common stock equivalents are excluded from the
computation when their inclusion would be anti-dilutive. No such adjustments were made for 2023, 2022 or 2021 as the Company reported a net loss for
the years ended December 31, 2023, 2022 and 2021 and including the effects of common stock equivalents in the diluted earnings per share calculation
would have been anti-dilutive (see Note 9).

Stock-Based Compensation

The  Company  accounts  for  stock-based  compensation  under  the  provisions  of  ASC  718  Compensation  –  Stock  Compensation.  The  guidance
under ASC 718 requires companies to estimate the fair value of the stock-based compensation awards on the date of grant and record expense over the
related service periods, which are generally the vesting period of the equity awards. Compensation expense is recognized over the period during which
services are rendered by consultants and non-employees until completed. At the end of each financial reporting period prior to completion of the service,
the fair value of these awards is remeasured using the then-current fair value of our common stock and updated assumption inputs in the Black-Scholes
option-pricing model (“BSM”).

The  Company  estimates  the  fair  value  of  stock-based  option  awards  using  the  BSM.  The  BSM  requires  the  input  of  subjective  assumptions,
including the expected stock price volatility, the calculation of expected term, forfeitures and the fair value of the underlying common stock on the date of
grant, among other inputs. The risk-free interest rate was determined from the implied yields for zero-coupon U.S. government issues with a remaining
term approximating the expected life of the options or warrants. Dividends on common stock are assumed to be zero for the BSM valuation of the stock
options. The expected term of stock options granted is based on vesting periods and the contractual life of the options. Expected volatilities are based on the
Company's historical volatility subsequent to our IPO, which we believe represents the most accurate basis for estimating expected future volatility under
the current conditions. The Company accounts for forfeitures as they occur.

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Eton Pharmaceuticals, Inc.
NOTES TO FINANCIAL STATEMENTS
(in thousands, except share and per share amounts)

Note 3 — Summary of Significant Accounting Policies (continued)

Income Taxes

As part of the process of preparing the Company’s financial statements, the Company must estimate the actual current tax liabilities and assess
temporary  differences  resulting  from  differing  treatment  of  items  for  tax  and  accounting  purposes.  These  differences  result  in  deferred  tax  assets  and
liabilities, which are included within the balance sheets. The Company must assess the likelihood that the deferred tax assets will be recovered from future
taxable income and, to the extent the Company believes that recovery is not likely, a valuation allowance must be established. To the extent the Company
establishes a valuation allowance or increase or decrease to this allowance in a period, the impact will be included in income tax expense in the statements
of operations. As of December 31, 2023 and 2022, the Company has established a 100% valuation reserve against its deferred tax assets.

The Company accounts for income taxes under the provisions of ASC 740 - Income Taxes. As of December 31, 2023 and 2022, there were no
unrecognized tax benefits included in the balance sheets that would, if recognized, affect the effective tax rate. The Company’s practice is to recognize
interest and penalties related to income tax matters in income tax expense. The Company had no accrual for interest or penalties in its balance sheets at
December 31, 2023 or 2022, and has not recognized interest and penalties in the statements of operations for the years ended December 31, 2023, 2022 and
2021. As of December 31, 2023, the Company is subject to taxation in the United States and certain individual states – primarily Illinois and Tennessee.
The Company’s tax losses from 2017 through 2023 are subject to examination by the federal and state tax authorities due to the carryforward of unutilized
net operating losses (“NOLs”).

Current  accounting  standards  include  guidance  on  the  accounting  for  uncertainty  in  income  taxes  recognized  in  the  financial  statements.  Such
standards also prescribe a recognition threshold and measurement model for the financial statement recognition of a tax position taken, or expected to be
taken, and provides guidance on derecognition, classification, interest and penalties, accounting in interim periods, disclosure and transition. The Company
believes that the ultimate deductibility of all tax positions is highly certain, although there is uncertainty about the timing of such deductibility. As a result,
no liability for uncertain tax positions was recorded as of December 31, 2023 or 2022.

Fair Value Measurements

We  measure  certain  of  our  assets  and  liabilities  at  fair  value.  Fair  value  represents  the  price  that  would  be  received  to  sell  an  asset  or  paid  to
transfer  a  liability  in  an  orderly  transaction  between  market  participants  at  the  measurement  date.  Fair  value  accounting  requires  characterization  of  the
inputs used to measure fair value into a three-level fair value hierarchy as follows:

Level 1 – Inputs based on quoted prices in active markets for identical assets or liabilities. An active market is a market in which transactions

occur with sufficient frequency and volume to provide pricing information on an ongoing basis.

Level 2 – Observable inputs that reflect the assumptions market participants would use in pricing the asset or liability developed based on market

data obtained from sources independent from the entity.

Level 3 – Unobservable inputs that reflect the entity’s own assumptions about the assumptions market participants would use in pricing the asset

or liability developed based on the best information available.

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Eton Pharmaceuticals, Inc.
NOTES TO FINANCIAL STATEMENTS
(in thousands, except share and per share amounts)

Note 3 — Summary of Significant Accounting Policies (continued)

Fair value measurements are classified based on the lowest level of input that is significant to the measurement. The Company’s assessment of the
significance of a particular input to the fair value measurement requires judgment, which may affect  the  valuation  of  the  assets  and  liabilities  and  their
placement  within  the  fair  value  hierarchy  levels.  The  determination  of  the  fair  values  stated  below  takes  into  account  the  market  for  the  Company’s
financials,  assets  and  liabilities,  the  associated  credit  risk  and  other  factors  as  required.  The  Company  considers  active  markets  as  those  in  which
transactions for the assets or liabilities occur in sufficient frequency and volume to provide pricing information on an ongoing basis.

The Company’s financial instruments included cash and cash equivalents, accounts receivable, accounts payable, accrued liabilities and long-term
debt  obligation.  The  carrying  amounts  of  these  financial  instruments,  except  for  the  long-term  debt  obligation,  approximate  their  fair  values  due  to  the
short-term  maturities  of  these  instruments.  Based  on  borrowing  rates  currently  available  to  the  Company,  the  carrying  value  of  the  long-term  debt
obligation approximate its fair value.

Impact of Recent Accounting Pronouncements

In March 2020, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2020-04, Reference Rate
Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting and in January 2021, the FASB issued ASU No. 2021-
01,  Reference  Rate  Reform  (Topic  848):  Scope  ("ASU  2021-01").  Both  ASU  No.  2020-04  and  ASU  No.  2021-01  provide  optional  expedients  and
exceptions for applying GAAP to contracts, hedging relationships, and other transactions that reference the London Interbank Offered Rate ("LIBOR") or
another reference rate expected to be discontinued because of reference rate reform. ASU No. 2020-04 and ASU No. 2021-01 are effective upon issuance
for contract modifications and hedging relationships, and the Company is allowed to elect to apply the amendments prospectively through December 31,
2022. In December 2022, the FASB issued ASU No. 2022-06, Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848, which extends
the temporary accounting rules under Topic 848 to December 31, 2024. The Company transitioned to the secured overnight financing rate ("Term SOFR")
from LIBOR on August 22, 2023. There are no material impacts to the consolidated financial statements.

In  June  2016,  the  FASB  issued  ASU  2016-13,  Financial  Instruments-Credit  Losses  (Topic  316):  Measurement  of  Credit  Losses  on  Financial
Instruments, which modifies the measurement and recognition of credit losses for most financial assets and certain other instruments. The new standard
requires the use of forward-looking expected credit loss models based on historical experience, current conditions, and reasonable and supportable forecasts
that affect the collectability of the reported amount, which may result in earlier recognition of credit losses under the new standard. The new guidance also
modifies  the  impairment  models  for  available-for-sale  debt  securities  and  for  purchased  financial  assets  with  credit  deterioration  since  their  origination.
Subsequent  to  the  issuance  of ASU  No. 2016-13,  the  FASB  issued ASU  No. 2018-19, Codification  Improvements  to  Topic  326,  Financial  Instruments-
Credit Losses. This ASU does not change the core principle of the guidance in ASU No. 2016-13, instead these amendments are intended to clarify and
improve  operability  of  certain  topics  included  within  the  credit  losses  standard.  The  FASB  also  subsequently  issued ASU  No.  2019-04  which  did  not
change the core principle of the guidance in ASU No. 2016-13 but clarified that expected recoveries of amounts previously written off and expected to be
written off should be included in the valuation account and should not exceed amounts previously written off and expected to be written off. The Company
prospectively adopted this guidance on the effective date of January 1, 2023 and the adoption did not have a material impact to the consolidated financial
statements and resulted in no adjustment to the Company’s prior year earnings.

Note 4 – Property and Equipment

Property and equipment consist of the following:

Computer hardware and software
Furniture and fixtures
Equipment
Leasehold improvements
Construction in progress

Less: accumulated depreciation and amortization
Property and equipment, net

December 31,
2023

December 31,
2022

  $

  $

187    $
111     
52     
103     
—     
453     
(395)    
58    $

177 
112 
52 
71 
12 
424 
(352)
72 

Depreciation expense for the years ended December 31, 2023, 2022 and 2021 was $44, $66 and $155, respectively.

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Note 5 – Debt

SWK Loan

Eton Pharmaceuticals, Inc.
NOTES TO FINANCIAL STATEMENTS
(in thousands, except share and per share amounts)

In November  2019,  the  Company  entered  into  a  credit  agreement  (the  “SWK  Credit  Agreement”)  with  SWK  Holdings  Corporation  (“SWK”)
which  provided  for  up  to  $10,000  in  debt  financing.  The  Company  received  proceeds  of  $5,000  at  closing  and  was  able  to  borrow  an  additional
$5,000 upon the FDA approval of a second product developed by the Company, excluding EM-100. In March 2020, in conjunction with the Company’s
ALKINDI SPRINKLE® product licensing agreement (see Note 14) and the Company’s March 2020 sale of shares of its common stock (see Note 6), the
Company  and  SWK  amended  the  SWK  Credit  Agreement.  The  amendment  provided  the  Company  with  the  option  to  immediately  draw  an  additional
$2,000 and the ability to borrow up to another $3,000 based upon the FDA approval of EM-100 and ALKINDI SPRINKLE® which subsequently occurred
in  September  2020.  Accordingly,  the  Company  borrowed  an  additional  $2,000  in  August  2020.  Under  the  terms  of  the  SWK  Credit  Agreement,  the
Company was required to maintain a minimum cash balance of $3,000, and pay 5.5% of the loan principal balance commencing in  February 2022 and then
every three months thereafter until November 2024 at which time the remaining principal balance is due. Borrowings under the SWK Credit Agreement are
secured  by  the  Company’s  assets.  The  SWK  Credit  Agreement  contains  customary  default  provisions  and  covenants  which  include  limits  on  additional
indebtedness. In February 2021, the Company notified SWK that it will not require additional borrowing capacity under the SWK Credit Agreement and
terminated the additional borrowing capacity with SWK.

In  connection  with  the  initial  $5,000  borrowed  in  November  2019,  the  Company  issued  warrants  to  SWK  to  purchase  51,239  shares  of  the
Company’s common stock with an exercise price of $5.86 per share. The relative fair value of these 51,239 warrants was $226 and was estimated using the
Black-Scholes-Merton  option  pricing  model  with  the  following  assumptions:  fair  value  of  the  Company’s  common  stock  at  issuance  of  $5.75  per
share; seven-year contractual term; 95% volatility; 0% dividend rate; and a risk-free interest rate of 1.8%.

In connection with the additional $2,000 borrowed in August 2020, the Company issued warrants for 18,141 shares of its common stock at an
exercise price of $6.62 per share. The relative fair value of the 18,141 warrants was $94 and was estimated using the Black-Scholes-Merton option pricing
model  with  the  following  assumptions:  fair  value  of  the  Company’s  common  stock  at  issuance  of  $6.85  per  share;  seven-year  contractual  term;  95%
volatility; 0% dividend rate; and a risk-free interest rate of 0.4%.

These warrants (the “SWK Warrants”) are exercisable immediately and have a term of seven years from the date of issuance. The SWK Warrants
are subject to a cashless exercise feature, with the exercise price and number of shares issuable upon exercise subject to adjustment in connection with
stock splits, dividends, reclassifications and other conditions.

In April 2022, the Company and SWK entered into an amendment to the SWK Credit Agreement which allowed for a deferral of loan principal
payments until May 2023 and reduced the interest rate to LIBOR 3-month plus 8.0%, subject to a stated LIBOR floor rate of 2.0%. In accordance with the
change, the Company has classified $1,033 as principal due in the next 12 months and the remainder classified as long-term debt in its balance sheet at
December 31, 2022. Because LIBOR was phased out as of June 2023, the Company amended the Credit Agreement in August 2023 to refer to Term SOFR,
with an interest rate of Term SOFR plus 8.26%, subject to a stated Term SOFR floor rate of 5.0%.

The Company recorded interest expense of $1,060, $955 and $1,042 in 2023, 2022 and 2021, respectively, which included $117, $127 and $148,
respectively, of debt discount amortization. The Company had accrued interest of $332 and $231 as of December 31, 2023 and 2022, respectively, which is
included in accrued liabilities in the accompanying balance sheets.

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Note 5 – Debt (continued)

Eton Pharmaceuticals, Inc.
NOTES TO FINANCIAL STATEMENTS
(in thousands, except share and per share amounts)

The table below reflects the future annual payments for the SWK loan principal and interest as of December 31, 2023.

2024
Total payments
Less: amount representing interest
Loan payable, gross
Less: unamortized discount
Debt, net of unamortized discount

PPP loan

Amount

6,483 
6,483 
(1,023)
5,460 
(80)
5,380 

  $

On  May  4,  2020,  the  Company  received  $361  in  loan  proceeds  under  the  Paycheck  Protection  Program  (“PPP”)  from  the  Small  Business
Administration (“SBA”) through its banking relationship with Bank of America. On May 20, 2021, the Company received notice that the loan principal and
cumulative interest of $4 was forgiven in full as permitted under the applicable SBA guidelines for PPP loans. The $365 gain on debt extinguishment is
reflected in non-operating income for the year ended December 31, 2021.

EIDL loan

On July  21,  2020,  the  Company  received  $150  in  loan  proceeds  under  the  Economic  Injury  Disaster  Loan  program  (“EIDL”)  from  the  SBA.  The

Company paid off the full EIDL loan principal and its cumulative interest of $6 in July 2021.

Note 6 — Common Stock

The Company has 50,000,000 authorized shares of $0.001 par value common stock under its Amended and Restated Certificate of Incorporation.

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Note 6 — Common Stock (continued)

Eton Pharmaceuticals, Inc.
NOTES TO FINANCIAL STATEMENTS
(in thousands, except share and per share amounts)

For the years ended December 31, 2023 and 2022, the Company issued 207,626 (net shares issued after a portion of 407,808 shares was a cashless
exercise) and 25,000 shares, respectively, of its common stock resulting from stock option exercises under its 2018 Equity Incentive Plan (see Note 8). The
Company withheld 50,867 shares for payroll tax obligations totaling $180 for the year ended December 31, 2023. For the years ended December 31, 2023
and 2022, the Company issued 86,782 and 69,884 shares, respectively, under the Company’s Employee Stock Purchase Plan (“ESPP”). For the year ended
December  31,  2023,  the  Company  issued  91,402  shares  of  its  common  stock  due  to  the  vesting  of  restricted  stock  units.  In  April  2021,  the  Company
issued 25,000 shares of its common stock to a member of its board of directors upon his retirement from the board in connection with previously vested
RSUs. During 2022, there were 1,067,242 warrants exercised, a portion of which was a cashless exercise, resulting in 632,231 shares of common stock
being issued by the Company.

Note 7 — Common Stock Warrants

Listed below is a summary of warrants outstanding as of December 31, 2023:

Description of Warrants
SWK Warrants – Debt (Tranche #1)
SWK Warrants – Debt (Tranche #2)

Total

No. of Shares

    Exercise Price

51,239    $
18,141    $
69,380   

5.86 
6.62 
6.05 (Avg) 

The holders of these warrants or their permitted transferees, are entitled to rights with respect to the registration under the Securities Act of their
shares  that  are  converted  to  common  stock,  including  demand  registration  rights  and  piggyback  registration  rights.  These  rights  are  provided  under  the
terms of a registration rights agreement between the Company and the investors.

On  June  26,  2022,  467,242  warrants  from  the  2017  preferred  stock  offering  with  an  exercise  price  of  $3.00  were  set  to  expire.  Prior  to  the
expiration, the Company entered into an agreement with the warrant holders, whereby it modified the terms of the warrants to extend the expiration date
until  December 26, 2022 in exchange for the Company retaining the option of a cashless exercise provision. No other terms were modified. Due to this
modification, the Company incurred a modification expense of $244 that is included in general and administration expense on the Statement of Operations
for the year ended December 31, 2022.

A rollforward of the warrants outstanding is listed in the table below:

Balance as of the beginning of the year
Expiration of National Securities Corp – November 2018 issuance
Balance as of the end of the year

No. of Shares

483,380 
(414,000)
69,380 

There were 1,067,242 warrants exercised on a cashless basis in 2022 resulting in 632,231 shares of common stock being issued by the Company.
There were 135,650 warrants exercised in 2021 (all on a cashless basis) resulting in 94,808 shares of common stock being issued by the Company. The
intrinsic value of the warrants exercised was $2,367 in  2022 and $806 in 2021. There were no warrants exercised in 2023.

Note 8 — Share-Based Payment Awards

The Company’s board of directors and stockholders approved the Eton Pharmaceuticals, Inc. 2017 Equity Incentive Plan in May 2017 (the “2017
Plan”), which authorized the issuance of up to 5,000,000 shares of the Company’s common stock. In conjunction with the Company’s IPO in November
2018, the Company’s stockholders and board of directors approved the 2018 Equity Incentive Plan, as amended (the “2018 Plan”) which succeeded the
2017 Plan. The Company has granted RSAs, stock options and RSUs for its common stock under the 2017 Plan and 2018 Plan as detailed in the tables
below. There were 663,598 shares available for future issuance under the 2018 Plan as of December 31, 2023.

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Eton Pharmaceuticals, Inc.
NOTES TO FINANCIAL STATEMENTS
(in thousands, except share and per share amounts)

Note 8 — Share-Based Payment Awards (continued)

Shares that are expired, terminated, surrendered or canceled without having been fully exercised will be available for future awards under the 2018
Plan. In addition, the 2018 Plan provides that commencing January 1, 2019 and through January 1, 2028, the share reserve will be increased by 4% of the
total  number  of  shares  outstanding  as  of  the  preceding  December  31,  subject  to  a  reduction  at  the  discretion  of  the  Company’s  board  of  directors.  On
January 1, 2021, the share reserve was increased by 972,512 shares based on the 24,312,808 shares of common stock outstanding at December 31, 2020.
On January 1, 2022, the  share  reserve  was  increased  by  985,040  shares  based  on  the  24,626,004  shares  of  common  stock  outstanding  at  December 31,
2021. On January 1, 2023, the share reserve was increased by 1,014,124 shares based on the 25,353,119 shares of common stock outstanding at December
31, 2022. The exercise price for stock options granted is not less than the fair value of common stock as determined by the board of directors as of the date
of grant. The Company uses the closing stock price on the date of grant as the exercise price.

To date, all stock options issued have been non-qualified stock options, and the exercise prices were set at the fair value for the shares at the dates
of  grant.  Options  typically  have  a  ten-year  life,  except  for  options  to  purchase  50,000  shares  of  the  Company’s  common  stock  granted  to  product
consultants  in  July  2017  that  expired,  unexercised,  in  July  2022  as  the  Company  was  not  able  to  file  certain  product  submissions  to  the  FDA  prior  to
the five-year expiration date. Furthermore, these option awards to the Company’s product consultants would not vest unless certain product submissions are
made to the FDA, and accordingly, the Company has not recorded any expense for these contingently vesting option awards to its product consultants.

In  July  2022  and  September  2022,  the  Company’s  board  of  directors  approved  modifications  of  certain  outstanding  awards  of  two  senior
executives, one of whom retired in May 2022 and the other whose employment was terminated in July 2022. The combined awards had an exercise price
range of $1.37 to $8.61 which were set to expire 90 days after retirement or termination as the case may be, and the Company extended the expiration dates
to April 2023. No  other  terms  were  modified.  Due  to  these  modifications,  the  Company  incurred  a  modification  expense  of  approximately  $104  that  is
included in general and administration expense on the Statement of Operations for the year ended December 31, 2022.

For the years ended December 31, 2023, 2022 and 2021, the Company’s total stock-based compensation expense was $3,137, $4,218 and $3,381,
respectively. Of these amounts, $2,864, $3,954, and $2,838 was recorded in general and administrative expenses, respectively, and $273, $264, and $543
was recorded in R&D expenses, respectively.

Stock Options

The following table summarizes stock option activity during the year ended December 31, 2023:

    Weighted Average    

    Weighted Average      
Remaining

Shares

Exercise
Price

Contractual
Term

Aggregate
Intrinsic
Value

Options outstanding as of January 1, 2023
Issued
Exercised
Forfeited/Cancelled
Options outstanding as of December 31, 2023
Options exercisable at December 31, 2023
Options vested and expected to vest at December 31, 2023

4,402,292    $
1,108,291     
(407,808)    
(263,549)    
4,839,226    $
3,399,896    $
4,839,226    $

4.71     
3.51     
2.23     
5.94     
4.57     
4.78     
4.57     

7.3    $
6.7    $
7.3    $

3,467 
2,432 
3,467 

The aggregate intrinsic value of stock options is calculated as the difference between the exercise price of the stock options and the fair value of
the Company’s common stock for those stock options that had strike prices lower than the fair value of the Company’s common stock at December 31. The
intrinsic value of the options exercised during 2023 was $612.

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Eton Pharmaceuticals, Inc.
NOTES TO FINANCIAL STATEMENTS
(in thousands, except share and per share amounts)

Note 8 — Share-Based Payment Awards (continued)

There were 207,626 and 25,000 shares issued for exercise of stock options during the years ended  December 31, 2023 and 2022, respectively, for

proceeds of $149 and $35.

The assumptions used to calculate the estimated fair value of options granted during the years ended December 31, 2023, 2022 and 2021 under the

BSM were as follows:

Expected dividends
Expected volatility
Risk-free interest rate
Expected term (in years)
Weighted average grant date fair value

December 31,
2023

December 31,
2022

December 31,
2021

—%   
70%   
3.5 - 4.7%   
6.3 
2.32 

  $

—%   
70%   
1.5 - 3.9%   
5.9 
2.32 

  $

—%
70 - 80%
0.9 - 1.4%

6.0 
5.64 

  $

Expected Term — The Company has opted to use the “simplified method” for estimating the expected term of options granted to employees and
directors, whereby the expected term equals the arithmetic average of the vesting term and the original contractual term of the option (generally 10 years).
The expected term of options granted to non-employees equals the contractual life of the options.

Expected Volatility — Expected volatilities are based on the Company's historical volatility subsequent to our IPO, which we believe represents

the most accurate basis for estimating expected future volatility under the current conditions.

Risk-Free Interest Rate — The risk-free rate assumption is based on the U.S. Treasury instruments with maturities similar to the expected term of

the Company’s stock options.

Expected Dividend — The Company has not issued any dividends in its history and does not expect to issue dividends over the life of the options

and therefore has estimated the dividend yield to be zero.

Fair value of Common Stock —The Company uses the closing stock price on the date of grant for the fair value of the common stock.

As of December 31, 2023, there was a total of $3,601 of unrecognized compensation costs related to non-vested stock option awards which will be

recognized over a weighted average period of 2 years.

Restricted Stock Units (RSUs)

The following table summarizes restricted stock unit activity during the year ended December 31, 2023:

Outstanding and unvested as of January 1, 2023

Granted
Vested
Forfeited

Outstanding and unvested as of December 31, 2023

Weighted Average
Grant-Date

Number of Units

    Fair Value Per Unit

369,606    $
—     
(91,402)   $
(4,000)   $
274,204    $

2.63 
— 
2.63 
2.63 
2.63 

Stock-based compensation related to RSUs was $239 and $114 for the years ended  December 31, 2023 and 2022, respectively. As of December
31, 2023, there was $608 of unrecognized stock-based compensation expense related to unvested RSUs which will be recognized over a weighted average
period of 2.5 years.

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Eton Pharmaceuticals, Inc.
NOTES TO FINANCIAL STATEMENTS
(in thousands, except share and per share amounts)

Note 8 — Share-Based Payment Awards (continued)

Employee Stock Purchase Plan

In December 2018, the Company’s board of directors adopted an initial offering of the Company’s common stock under the Company’s ESPP. The
Company’s ESPP provides for an initial reserve of 150,000 shares and this reserve is automatically increased on January 1 of each year by the lesser of 1%
of the outstanding common shares at December 31 of the preceding year or 150,000 shares, subject to reduction at the discretion of the Company’s board of
directors.

The terms of the ESPP permit employees of the Company to use payroll deductions to purchase stock at a price per share that is at least the lesser
of (1) 85% of the fair market value of a share of common stock on the first date of an offering or (2) 85% of the fair market value of a share of common
stock on the date of purchase. After the initial offering period, subsequent twelve-month offering periods automatically commence over the term of the
ESPP on the day that immediately follows the conclusion of the preceding offering, each consisting of two purchase periods approximately six months in
duration ending on or around June 10 and December 10 each year, subject to a restart feature if the Company’s stock price drops at the end of a six-month
period within the twelve-month offering period.

The  Company  recorded  an  expense  of  $135,  $128,  and  $73  in  2023,  2022  and  2021,  respectively,  related  to  the  ESPP.  For  the  years  ended
December 31, 2023 and 2022, there were 86,782 and 69,884 share issuances, respectively, under the ESPP. The weighted average grant date fair value of
share awards in 2023, 2022 and 2021 was $1.27, $1.17, and $2.50 per share, respectively. Employees contributed $230 and $174 to the ESPP during 2023
and  2022,  respectively.  Of  these  amounts,  $24  and  $23  at  December  31,  2023  and  2022,  respectively,  are  included  in  accrued  liabilities  in  the
accompanying balance sheets. As of December 31, 2023, there were 623,514 shares available for issuance under the ESPP.

Note 9 — Basic and Diluted Net Loss per Common Share

Basic and diluted net loss per share is computed using the weighted average number of shares of common stock outstanding during the period.
Common stock equivalents (using the treasury stock and “if converted” method) from stock options, unvested RSAs and RSUs, and warrants at December
31,  2023,  2022  and  2021  were  5,418,251,  5,494,153,  and  4,286,687,  respectively,  and  are  excluded  from  the  calculation  of  diluted  net  loss  per  share
because the effect is anti-dilutive. Included in the basic and diluted net loss per share calculation were RSUs awarded to directors that had vested, but the
issuance and delivery of the shares are deferred until the director retires from service as a director.

The following table shows the computation of basic and diluted net loss per common share:

Year ended
December 31,
2023

Year ended
December 31,
2022

Year ended
December 31,
2021

Net loss

Weighted average common shares outstanding (basic and diluted)
Net loss per common share (basic and diluted)

  $

  $

(936)   $
25,645,366     
(0.04)   $

(9,021)   $
25,145,657     
(0.36)   $

(1,955)
25,207,299 
(0.08)

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Eton Pharmaceuticals, Inc.
NOTES TO FINANCIAL STATEMENTS
(in thousands, except share and per share amounts)

Note 10 — Related-Party Transactions

Harrow

The Chief Executive Officer of Harrow Health, Inc. (“Harrow”) was a member of the Company’s board of directors until March 17, 2021 when he
retired from service with the board. The Company issued 25,000 shares to the Harrow CEO in April 2021 after his retirement from the Company’s board
associated  with  RSUs  that  were  previously  fully  vested.  As  of  December  31,  2023,  Harrow  owned  1,982,000  shares  of  Eton’s  common  shares  which
represents approximately 7.7% of the Company’s common shares outstanding.

In March  2021,  the  Company  closed  its  laboratory  operation  in  Lake  Zurich,  Illinois  and  in  May  2021  it  reached  an  agreement  for  Imprimis

Pharmaceuticals, a subsidiary of Harrow, to purchase its lab equipment for $700 which was $181 above the Company’s net book value of the equipment.

Chief Executive Officer

The CEO has a partial interest in a company that the Company has partnered with for its EM-100/Alaway Preservative Free eye allergy product as

described below.

The  Company  acquired  the  exclusive  rights  to  sell  the  EM-100  product  in  the  United  States  pursuant  to  a  sales  and  marketing  agreement  (the
“Eyemax Agreement”) dated August 11, 2017 between the Company and Eyemax LLC (“Eyemax”), an entity affiliated with the Company’s CEO. Under
the terms of the original agreement, the Company would pay Eyemax $250 upon FDA approval and $500 upon the first commercial sale of the product and
pay Eyemax a royalty of 10% on the net sales of all products. The Eyemax Agreement was for an initial term of 10 years, subject to successive two-year
renewals unless the Company elected to terminate the Eyemax Agreement.

On  February  18,  2019,  the  Company  entered  into  an  Amended  and  Restated  Agreement  with  Eyemax  amending  the  Sales  Agreement  (the
“Amended Agreement”). Pursuant to the Amended Agreement, Eyemax sold the Company all of its right, title and interest in EM-100, including any such
product that incorporates or utilizes Eyemax’s intellectual property rights. Pursuant to the Amended Agreement, the Company paid Eyemax two milestone
payments: (i) one milestone payment for $250 upon regulatory approval in the territory by the FDA of the first single agent product and (ii) one milestone
payment for $500 following the first commercial sale of the first single agent product in the territory. The Company has realized $1,840 of the non-royalty
and royalty revenue as of December 31, 2023. The EM-100 asset and its associated product rights were sold to Bausch Health on February 18, 2019 and
future potential royalties of twelve percent on Bausch Health sales of the product, named Alaway® Preservative Free by Bausch, which was approved by
the FDA in September 2020, will be split between Eyemax and the Company. There were no amounts due to Eyemax under the terms of the Amended
Agreement as of December 31, 2023 or December 31, 2022,  and  Bausch  Health  discontinued  sales  of Alaway®  Preservative  Free  effective    March  24,
2023.

Note 11 — Leases

The Company recognizes a right-of-use (“ROU”) asset and a lease liability on the balance sheet for substantially all leases, including operating

leases, and separates lease components from non-lease components related to its office space lease.

In January 2018, the Company signed an amended lease agreement to lease additional office space adjacent to its current corporate office space in
Deer Park, Illinois. In October 2020, the Company renewed its office lease for a two-year period through March 2023 and recorded $195 in ROU assets
and  $195  in  operating  lease  liabilities  in  association  with  the  lease  extension.  In  November 2022, the  Company  renewed  its  office  lease  for  a  two-year
period through March 2025 and recorded $188 in ROU assets and $188 in operating lease liabilities in association with the lease extension.

In March  2018,  the  Company  entered  into  a  lease  for  laboratory  space  at  a  complex  in  Lake  Zurich,  Illinois.  The  lease  commenced  in  March
2018. In November 2020, this laboratory lease was extended to June 2021 and was not extended after that date as the Company completed an evaluation its
laboratory operations requirements and determined it would discontinue the laboratory activities and outsource its requirements.

The Company does not have any lease contracts that contain: (1) an option to extend that the Company is reasonably certain to exercise, (2) an
option to terminate that the Company is reasonably certain to exercise, or (3) an option to extend (or not to terminate) in which exercise of the option is
controlled  by  the  lessor.  Additionally,  the  Company  does  not  have  any  leases  with  residual  value  guarantees  or  material  restrictive  covenants.  Lease
liabilities and their corresponding right-of-use assets have been recorded based on the present value of the future lease payments over the expected lease
term. One of the Company’s lease agreements contains provisions for escalating rent payments over the term of the lease.

The Company’s leases do not contain readily determinable implicit discount rates, and therefore, the Company was required to use its incremental
borrowing rate of 7.8% to discount the future lease payments based on information available at lease commencement. In October 2020, the new discount
rate for the office lease extension was estimated at 5.4%. In November 2022, the new discount rate for an additional office lease extension was estimated
at  8.6%.  The  incremental  borrowing  rate  was  estimated  by  determining  the  rate  of  interest  that  the  Company  would  have  to  pay  to  borrow  on  a
collateralized basis over a similar term an amount equal to the lease payments in a similar economic environment.

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Note 11 — Leases (continued)

Eton Pharmaceuticals, Inc.
NOTES TO FINANCIAL STATEMENTS
(in thousands, except share and per share amounts)

The Company’s operating lease cost as presented in the “Research and Development” and “General and Administrative” captions in the statements
of  operations  was  $0,  $0,  and  $9  and  $67,  $82,  and  $86  for  the  years  ended  December  31,  2023,  2022  and  2021,  respectively.  For  the  years  ended
December  31,  2023,  2022  and  2021,  the  Company  recorded  $77,  $86,  and  $113,  respectively,  in  rent  expense.  Cash  paid  for  amounts  included  in  the
measurement of operating lease liabilities was $88, $88, and $83 for the years ended December 31, 2023, 2022, and 2021,  respectively.  The  ROU  asset
amortization for years ended December 31, 2023, 2022 and 2021 was $67, $62, and $88, respectively, and is reflected in depreciation and amortization in
the Company’s statements of cash flows. As of December 31, 2023, the weighted-average remaining lease term was 1.25 years, and the weighted-average
discount rate was 8.6%.

The table below presents the lease-related assets and liabilities recorded on the balance sheet as of December 31, 2023:

Assets

Operating lease right-of-use assets

Total leased assets

Liabilities

Operating lease liabilities, current
Operating lease liabilities, noncurrent
Total operating lease liabilities

Classification
Operating lease right-of-use assets, net

Accrued liabilities
Operating lease liabilities, net of current portion

The Company’s future annual lease commitments as of December 31, 2023 are as indicated below:

  $
  $

  $

  $

92 
92 

53 
22 
75 

Undiscounted lease payments
Less: Imputed interest
Total lease liabilities

Note 12 – Income Taxes

Total

2024

2025

2026

  $

  $

81    $
(6)    
75     

58    $

23    $

— 

The provision for income taxes for the Company consists of the following for the years ended December 31, 2023, 2022 and 2021:

Current:

Federal
State

Total current expense

Deferred:
Federal
State

Change in valuation allowance
Total deferred expense
Total provision

Year ended
December 31,
2023

Year ended
December 31,
2022

Year ended
December 31,
2021

  $

  $

61    $
186     
247     

(85)    
(31)    
116     
—     
247    $

—    $
—     
—     

2,272     
812     
(3,084)    
—     
—    $

— 
— 
— 

460 
185 
(645)
— 
— 

Deferred  income  taxes  reflect  the  net  tax  effects  of  temporary  differences  between  the  carrying  amounts  of  assets  and  liabilities  for  financial

reporting purposes and the amounts used for income tax purposes.

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Note 12 – Income Taxes (continued)

Eton Pharmaceuticals, Inc.
NOTES TO FINANCIAL STATEMENTS
(in thousands, except share and per share amounts)

The significant components of the Company’s deferred tax assets as of December 31, 2023 and 2022 are as follows:

Net operating losses
Stock-based expenses
Accruals and other
Total deferred tax assets
Valuation allowance
Net deferred tax assets

December 31,
2023

December 31,
2022

  $

  $

15,447    $
3,372     
2,697     
21,516     
(21,516)    
—    $

17,183 
3,090 
1,359 
21,632 
(21,632)
— 

Based  on  the  uncertainty  of  future  taxable  income  at  this  time  management  believes  a  100%  valuation  reserve  for  the  $21,516  and

$21,632 deferred tax assets at December 31, 2023 and 2022, respectively, is appropriate.

A reconciliation of the statutory federal tax rate to effective tax rate is shown below:

Provision (benefit) at statutory rate
Permanent items (primarily warrants and stock compensation)
State tax benefit
Federal rate change
Other items
Increase (decrease) in valuation allowance
Income tax expense

Year ended

Year ended

Year ended

  December 31,

  December 31,

  December 31,

2023

2022

2021

21.0%   
39.1 
6.5 
— 
— 
(30.7)    
35.9%   

(21.0)%   
(3.3)
(8.7)
— 
— 
33.0 

—%    

(21.0)%
(2.5)
(9.5)
— 
— 
33.0 

—%

The  Company  has  a  federal  and  state  NOL  carryforward  of  $54,190  as  of  December  31,  2023.  Under  the  Tax  Act,  federal  NOLs  incurred  in
taxable years ending after December 31, 2017 in the amount of $54,190  may be carried forward indefinitely and are subject to an 80% usage limitation.
The state NOL carry forward will begin to expire in 2029.

In  addition,  under  Sections  382  and  383  of  the  Internal  Revenue  Code  of  1986,  as  amended,  and  corresponding  provisions  of  state  law,  if  a
corporation undergoes an “ownership change,” which is generally defined as a greater than 50% change (by value) in its equity ownership over a three-year
period, the corporation’s ability to use its pre-change NOL carryforwards and other pre-change tax attributes (such as research tax credits) to offset its post-
change income may be limited.

Note 13 - Employee Savings Plan

The Company established an employee savings plan pursuant to Section 401(k) of the Internal Revenue Code, effective January 1, 2018. The plan
allows participating employees to deposit into tax deferred investment accounts up to 100% of their salary, subject to annual limits. The Company makes
certain matching contributions to the plan in amounts up to 4% of the participants’ annual cash compensation, subject to annual limits. For the years ended
December 31, 2023, 2022 and 2021, the Company made $242, $172, and $154, respectively, in matching contributions.

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Eton Pharmaceuticals, Inc.
NOTES TO FINANCIAL STATEMENTS
(in thousands, except share and per share amounts)

Note 14 — Commitments and Contingencies

Legal

The  Company  is  subject  to  legal  proceedings  and  claims  that  may arise  in  the  ordinary  course  of  business.  The  Company  is  not  aware  of  any

pending or threatened litigation matters at this time that may have a material impact on the operations of the Company.

License and Product Development Agreements

The Company has entered into various agreements in addition to those discussed above which are described below.

The three oral solution pediatric neurology product candidates discussed below, Topiramate, Zonisamide and Lamotrigine, were developed by the
Company and its various product candidate development partners and the Company subsequently sold all its rights and interests in these three products to
Azurity in 2021, but retained rights to certain royalties. The Company has recognized $27,500 in milestone revenues to date from these three products, and
in June 2023 the  Company  amended  its  asset  purchase  agreement  with  Azurity  and  sold  the  remaining  royalty  interests  it  received  back  to  Azurity  for
$5,500. Azurity  will  assume  royalty  or  profit  share  obligations  owed  to  development  partners  as  well  as  additional  milestone  payments  based  on  sales
volume targets.

Prior to January 1, 2022, the Company worked with Tulex Pharmaceuticals, Inc. (“Tulex”) as a third-party contract manufacturer to develop an
oral solution for Topiramate (fka ET-101) which targets a neurological condition. In November 2021, the product received approval from the FDA and was
launched by Azurity in December 2021. The Company recognized a $5,000 milestone revenue at launch which was reflected in accounts receivable on the
Company’s balance sheet at December 31, 2021 and subsequently collected in January 2022.

On January 23, 2019, the Company entered into a Licensing and Supply Agreement (the “Agreement”) with Liquimeds Worldwide (“LMW”) for
Zonisamide oral liquid, a development stage product candidate (“ET-104”). Pursuant to the terms of the Agreement, the Company was to be responsible for
regulatory and marketing activities and LMW was responsible for development and manufacturing of ET-104. The Company paid $650 to Azurity upon
issuance of patent covering ET-104 listed in the FDA’s Orange Book in November 2022.

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Eton Pharmaceuticals, Inc.
NOTES TO FINANCIAL STATEMENTS
(in thousands, except share and per share amounts)

Note 14 — Commitments and Contingencies (continued)

In March 2020, the  Company  entered  into  an  Exclusive  Licensing  and  Supply  Agreement  (the  “Alkindi  License  Agreement”)  with  Diurnal  for
marketing ALKINDI SPRINKLE® in the United States. In September 2020, ALKINDI SPRINKLE®’s New Drug Application (NDA) was approved by
the FDA as a replacement therapy for pediatric patients with adrenocortical insufficiency.

For the initial licensing milestone fee, the Company paid Diurnal $3,500 in cash and issued 379,474 shares of its common stock to Diurnal which
were  valued  at  $1,264  based  on  the  Company’s  closing  stock  price  of  $3.33  on  March  26,  2020.  The  Company  paid  Diurnal  $1,000  for  a  2023  sales
milestone in January 2024 that was recorded as licensing cost of sales in December 2023, and will also pay Diurnal $2,500 if the product obtains orphan
drug exclusivity status from the FDA.

In June 2021, the  Company  acquired  U.S.  and  Canadian  rights  to  Crossject’s  ZENEO®  hydrocortisone  needleless  autoinjector,  which  is  under
development  as  a  rescue  treatment  for  adrenal  crisis.  The  Company  paid  Crossject  $500  upon  signing,  $500  in  March  2022  upon  a  completion  of  a
successful technical batch and could pay up to $3,500 in additional development milestones and up to $6,000 in commercial milestones, as well as a 10%
royalty on net sales.

In October 2021, the Company acquired the U.S. marketing rights to Carglumic Acid Tablets. The product’s Abbreviated New Drug Application
(“ANDA”), which is owned by Novitium Pharma, was approved by the FDA in October 2021. The product is an AB-rated, substitutable generic version of
Carbaglu®.  The  Company  paid  $3,250  upon  signing  and  retains  50%  of  the  product  profits  with  the  balance  being  distributed  to  the  licensor  and
manufacturer. The Company launched this product in December 2021.

In  June  2022,  the  Company  sold  its  rights  in  Cysteine  Hydrochloride,  Biorphen®,  and  Rezipres®  to  Dr.  Reddy’s.  Under  the  terms  of  the
transaction, Dr. Reddy’s assumed immediate ownership of Eton’s rights and interest in the products. The Company received $5,000 at closing, recorded as
licensing revenue in the twelve months ended December 31, 2022. In accordance with the terms of the agreement, $812 of Sintetica profit share receivables
were expensed as cost of goods sold in the twelve months ended December 31, 2022.

In September 2022, the Company acquired an FDA-approved ANDA for Betaine Anhydrous for oral solution. The ANDA was approved by the
FDA in January  2022.  The  Company  paid  $2,000  upon  signing  and  an  additional  $125  in  November  2023,  and  could  pay  up  to  $1,000  in  commercial
milestones. The Company will retain 65% of the product profits with the balance being distributed to the licensor.

In March 2023, the Company acquired rare disease endocrinology product candidate ET-600 from Tulex. The Company paid $450 to Tulex in July
2023 as a result of successful manufacturing of registration batches. The Company will pay Tulex $200 upon acceptance by the FDA of the NDA for the
product, $250 upon first commercial sale of the product, and tiered royalties of 12.5% to 17.0% on net sales.

In October  2023,  the  Company  acquired  an  FDA-approved  ANDA  for  Nitisinone.  The  ANDA  was  approved  by  the  FDA  in  May  2023.  The
Company paid $150 to the seller and an additional $500 of cure amounts owed to the manufacturer upon signing. The Company will retain 80% of the
product profits with the balance being distributed to the manufacturer.

Indemnification

As permitted under Delaware law and in accordance with the Company’s Amended and Restated Bylaws, the Company is required to indemnify
its officers and directors for certain events or occurrences while the officer or director is or was serving in such capacity. The Company is also party to
indemnification agreements with its directors and officers. The Company believes the fair value of the indemnification rights and agreements is minimal.
Accordingly, the Company has not recorded any liabilities for these indemnification rights and agreements as of December 31, 2023 or 2022.

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

PART II (CONTINUED)

None.

Item 9A. Controls and Procedures

Disclosure Controls and Procedures

We maintain “disclosure controls and procedures,” as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, that are
designed  to  ensure  that  information  required  to  be  disclosed  by  us  in  reports  that  we  file  or  submit  under  the  Exchange  Act  is  recorded,  processed,
summarized and reported within the time periods specified in SEC rules and forms, and that such information is accumulated and communicated to our
management,  including  our  CEO  and  our  CFO,  to  allow  timely  decisions  regarding  required  disclosure.  In  designing  and  evaluating  these  disclosure
controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable
assurance of achieving the desired control objective.

As  of  December  31,  2023,  an  evaluation  was  conducted  under  the  supervision  and  with  the  participation  of  our  management,  including  our
CEO and CFO, of the effectiveness of our disclosure controls and procedures. Based on this evaluation, such officers have concluded that our disclosure
controls and procedures are effective as of December 31, 2023.

Management’s Report on Internal Control over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting for our Company, as such term
is  defined  in  Rule  13a-15(f)  under  the  Exchange  Act.  Our  management  conducted  an  evaluation,  with  the  participation  of  our  CEO  and  CFO,  of  the
effectiveness  of  our  internal  control  over  financial  reporting  as  of  December  31,  2023,  based  on  the  criteria  set  forth  in  the  2013  Internal  Control—
Integrated  Framework  issued  by  the  Committee  of  Sponsoring  Organizations  of  the  Treadway  Commission.  Based  on  this  evaluation,  our  management
concluded that our internal control over financial reporting was effective as of December 31, 2023.

This report does not include an attestation report of our independent registered public accounting firm regarding our internal control over financial

reporting, in accordance with applicable SEC rules that permit us to provide only management’s report in this report.

Changes in Internal Control over Financial Reporting

There  has  not  been  any  change  in  our  internal  control  over  financial  reporting  (as  defined  in  Rules  13a-15(f)  under  the  Exchange  Act)  that
occurred during the quarter ended December 31, 2023 that has materially affected, or is reasonably likely to materially affect, our internal control over
financial reporting.

77

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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Inherent Limitations on Effectiveness of Controls

Our management, including our principal executive officer and principal financial officer, do not expect that our disclosure controls or our internal
control over financial reporting will prevent or detect all errors and all fraud. A control system, no matter how well designed and operated, can provide only
reasonable,  not  absolute,  assurance  that  the  control  system’s  objectives  will  be  met.  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.  Further,  because  of  the  inherent  limitations  in  all  control
systems,  no  evaluation  of  controls  can  provide  absolute  assurance  that  misstatements  due  to  error  or  fraud  will  not  occur  or  that  all  control  issues  and
instances  of  fraud,  if  any,  have  been  detected.  These  inherent  limitations  include  the  realities  that  judgments  in  decision-making  can  be  faulty  and  that
breakdowns can occur because of simple error or mistake. Controls can also be circumvented by the individual acts of some persons, by collusion of two or
more people, or by management override of the controls. The design of any system of controls is based in part on certain assumptions about the likelihood
of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions. Projections of
any evaluation of controls effectiveness to future periods are subject to risks. Over time, controls may become inadequate because of changes in conditions
or deterioration in the degree of compliance with policies or procedures.

Item 9B. Other Information

Insider Trading Arrangements and Related Disclosure

During the three months ended December 31, 2023, none of our directors or officers adopted or terminated a “Rule 10b5-1 trading arrangement”

or “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408(a) of Regulation S-K.

We are committed to promoting high standards of ethical business conduct and compliance with applicable laws, rules and regulations. As part of
this commitment, we have adopted our Insider Trading Policy governing the purchase, sale, and/or other dispositions of our securities by our directors,
officers, employees and designated contractors. We believe our Insider Trading Policy is reasonably designed to promote compliance with insider trading
laws, rules and regulations, and the exchange listing standards applicable to us. A copy of our Insider Trading Policy, including any amendments thereto, is
filed as Exhibit 19.1 to this Annual Report on Form 10-K.

Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections

Not applicable.

Item 10. Directors, Executive Officers and Corporate Governance

PART III

The  information  required  by  this  item  and  not  set  forth  below  will  be  set  forth  in  the  section  headed  “Election  of  Directors”  and  “Executive
Officers” in our Proxy Statement for our 2024 Annual Meeting of Stockholders (“Proxy Statement”), to be filed with the SEC within 120 days after the end
of the fiscal year ended December 31, 2023, and is incorporated herein by reference.

We  have  adopted  a  code  of  ethics  for  directors,  officers  (including  our  principal  executive  officer,  principal  financial  officer  and  principal
accounting  officer)  and  employees,  known  as  the  Code  of  Business  Conduct  and  Ethics.  The  Code  of  Business  Conduct  and  Ethics  is  available  on  our
website at http://ir.etonpharma.com under the Corporate Governance section of our Investor Relations page. We will promptly disclose on our website (i)
the  nature  of  any  amendment  to  the  policy  that  applies  to  our  principal  executive  officer,  principal  financial  officer,  principal  accounting  officer  or
controller, or persons performing similar functions and (ii) the nature of any waiver, including an implicit waiver, from a provision of the policy that is
granted to one of these specified individuals that is required to be disclosed pursuant to SEC rules and regulations, the name of such person who is granted
the waiver and the date of the waiver.

Item 11. Executive Compensation

The information required by this item will be set forth in the section headed “Executive Compensation” in our Proxy Statement and is incorporated

herein by reference.

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

The information required by this item will be set forth in the section headed “Security Ownership of Certain Beneficial Owners and Management”

in our Proxy Statement and is incorporated herein by reference.

The  information  required  by  Item  201(d)  of  Regulation  S-K  will  be  set  forth  in  the  section  headed  “Executive  Compensation”  in  our  Proxy

Statement and is incorporated herein by reference.

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

The information required by this item will be set forth in the section headed “Transactions With Related Persons” in our Proxy Statement and is

incorporated herein by reference.

Item 14. Principal Accountant Fees and Services

The  information  required  by  this  item  will  be  set  forth  in  the  section  headed  “Ratification  of  Selection  of  Independent  Registered  Public

Accounting Firm” in our Proxy Statement and is incorporated herein by reference.

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Item 15. Exhibits, Financial Statement Schedules

(1) Index to Financial Statements

PART IV

The  following  financial  statements  of  Eton  Pharmaceuticals,  Inc.  and  the  Report  of  the  Independent  Registered  Public  Accounting  Firm  are

included in Part II, Item 8 of this Annual Report on Form 10-K:

Report of Independent Registered Public Accounting Firm (PCAOB ID:170)
Balance Sheets as of December 31, 2023 and 2022
Statements of Operations for the years ended December 31, 2023, 2022 and 2021
Statements of Stockholders’ Equity for the years ended December 31, 2023, 2022 and 2021
Statements of Cash Flows for the years ended December 31, 2023, 2022 and 2021
Notes to the Financial Statements

(2) Financial Statement Schedules

51
53
54
55
56
57

Financial  statement  schedules  have  been  omitted  in  this  report  because  they  are  not  applicable,  not  required  under  the  instructions,  or  the

information requested is set forth in the financial statements or related notes thereto.

(3) Exhibits

The following exhibits have been filed or are being filed herewith and are numbered in accordance with Item 601 of Regulation S-K:

EXHIBIT INDEX

Exhibit
No.
3.1

  Description
  Amended  and  Restated  Certificate  of  Incorporation  of  the  Registrant  (incorporated  by  reference  to  Exhibit  3.1  to  the  Registrant’s  Current

Report on Form 8-K, filed November 20, 2018).

3.2

  Amended and Restated Bylaws of the Registrant (incorporated by reference to Exhibit 3.2 to the Registrant’s  Current  Report  on  Form  8-K,

filed November 20, 2018).

4.1

  Specimen  Certificate  representing  shares  of  common  stock  of  Registrant  (incorporated  by  reference  to  Exhibit  4.1  to  the  Registrant’s

Registration Statement on Form S-1, as amended (File No. 333-226774), originally filed August 10, 2018).

4.2

  Form of Underwriter’s Warrant (incorporated by reference to Exhibit 4.4 to the Registrant’s Registration Statement on Form S-1, as amended

(File No. 333-226774), originally filed August 10, 2018).

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Exhibit
No.
4.3

  Description
  Warrant dated November 13, 2019 issued to SWK Holdings LLC. (incorporated by reference to Exhibit 4.5 to the Registrant’s Annual Report

on Form 10-K for the year ended December 31, 2019 filed March 5, 2020).

10.1

  Registration Rights Agreement dated June 19, 2017 by and among the Registrant and certain of its stockholders (incorporated by reference to

Exhibit 10.2 to the Registrant’s Registration Statement on Form S-1, as amended (File No. 333-226774), originally filed August 10, 2018).

10.2†

  Asset Purchase Agreement (DS-200) dated June 23, 2017 between Selenix, LLC and the Registrant (incorporated by reference to Exhibit 10.5

to the Registrant’s Registration Statement on Form S-1, as amended (File No. 333-226774), originally filed August 10, 2018).

10.3

  Amended  and  Restated  Agreement  relating  to  sales  and  marketing  dated  February  18,  2019  between  the  Registrant  and  Eyemax,  LLC

(incorporated by reference to Exhibit 10.6 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2019)

10.4†

  Sales/Marketing Agreement (DS-300) dated November 17, 2017 by and among AL Pharma, Inc., SCS National, LLC, Dry Creek Project, LLC
and the Registrant (incorporated by reference to Exhibit 10.9 to the Registrant’s Registration Statement on Form S-1, as amended (File No.
333-226774), originally filed August 10, 2018).

10.5+   Offer Letter Agreement by and between the Registrant and Sean E. Brynjelsen, dated as of May 17, 2017 (incorporated by reference to Exhibit
10.12 to the Registrant’s Registration Statement on Form S-1, as amended (File No. 333-226774), originally filed August 10, 2018).

10.6+   Offer Letter Agreement by and between the Registrant and James Gruber, dated as of March 25, 2022.
10.7+   2018 Equity Incentive Plan as amended December 2020 (incorporated by reference to Exhibit 10.11 to the Registrant’s Annual Report on Form

10-K for the year ended December 31, 2020 filed on March 16, 2021).

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Exhibit
No.
10.8+   2018 Employee Stock Purchase Plan (incorporated by reference to Exhibit 10.17 to the Registrant’s Registration Statement on Form S-1, as

  Description

amended (File No. 333-226774), originally filed August 10, 2018).

10.9

10.10

  Amendment No. 1 dated August 29, 2018 to Sales/Marketing Agreement (DS-300) dated November 17, 2017 between AL Pharma, Inc. and the
Registrant  (incorporated  by  reference  to  Exhibit  10.18  to  the  Registrant’s  Registration  Statement  on  Form  S-1,  as  amended  (File  No.  333-
226774), originally filed August 10, 2018).

  Credit Agreement dated as of November 13, 2019, by and among the Company and SWK Funding LLC (incorporated by reference to Exhibit
10.14 to the Registrant’s Annual Report on Form 10-K for the year ended December 31, 2019 filed March 5, 2020) (as amended on April 5,
2022 and such amendment is incorporated by reference to exhibit 10.1 to the Registrant’s quarterly report on Form 10-Q for the quarter ended
March 31, 2022).

19.1
23.1
24.1
31.1*

  Insider Trading Policy
  Consent of Independent Registered Public Accounting Firm.
  Power of Attorney. Reference is made to the signature page hereto.
  Certification  of  President  and  Chief  Executive  Officer  (Principal  Executive  Officer),  pursuant  to  Section  302  of  the  Sarbanes-Oxley  Act  of

2002.

31.2*

  Certification of Chief Financial Officer (Principal Financial and Accounting Officer), pursuant to Section 302 of the Sarbanes-Oxley Act of

2002.

32.1*

  Certifications  of  President  and  Chief  Executive  Officer  (Principal  Executive  Officer)  and  Chief  Financial  Officer  (Principal  Financial  and

Accounting Officer), pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

97
101

  Policy Relating to Recovery of Erroneously Awarded Compensation
  The following financial information from the Company’s Annual Report on Form 10-K for the year ended December 31, 2023, formatted in
Inline  Extensible  Business  Reporting  Language  (iXBRL):  (i)  the  Balance  Sheets,  (ii)  the  Statements  of  Operations,  (iii)  the  Statement  of
Redeemable  Convertible  Preferred  Stock  and  Stockholders’  Equity  (Deficit),  (iv)  the  Statements  of  Cash  Flows  and  (v)  Notes  to  Financial
Statements.

104

  The cover page from the Company's Annual Report on Form 10-K for the year ended December 31, 2023, formatted in Inline XBRL (included

as Exhibit 101)

†
+
*

Confidential treatment has been granted with respect to certain portions of this exhibit. Omitted portions have been filed separately with the SEC.
Indicates management compensatory plan, contract or arrangement.
These certifications are being furnished solely to accompany this Annual Report pursuant to 18 U.S.C. Section 1350, and are not being filed for
purposes  of  Section  18  of  the  Securities  Exchange  Act  of  1934,  as  amended,  and  are  not  to  be  incorporated  by  reference  into  any  filing  of  the
Registrant, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

Item 16. Form 10-K Summary

None.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this Annual Report to be signed

on its behalf by the undersigned thereunto duly authorized.

March 14, 2024

ETON PHARMACEUTICALS, INC.

By: /s/ Sean E. Brynjelsen
Sean E. Brynjelsen
President and Chief Executive Officer
(Principal Executive Officer)

By: /s/ James Gruber
James Gruber
Chief Financial Officer
(Principal Financial and Accounting Officer)

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POWER OF ATTORNEY

Each  person  whose  signature  appears  below  constitutes  and  appoints  each  of  Sean  Brynjelsen  and  James  Gruber,  his  or  her  true  and  lawful
attorney-in-fact and agent, each with full power of substitution and resubstitution, severally, for him or her and in his or her name, place and stead, in any
and all capacities, to sign this Annual Report on Form 10-K of Eton Pharmaceuticals, Inc., and any or all amendments thereto, 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 requisite and necessary to be done in and about the premises, as fully to all intents
and purposes as he might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent or his substitute or substitutes, may
lawfully do or cause to be done by virtue hereof. This power of attorney may be executed in counterparts.

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this Annual Report to be signed

on its behalf by the undersigned thereunto duly authorized.

Signature

  Title

  Date

/s/ Sean E. Brynjelsen
Sean E. Brynjelsen

/s/ James Gruber
James Gruber

/s/ Jennifer M. Adams
Jennifer M. Adams

/s/ Charles J. Casamento
Charles J. Casamento

/s/ Paul V. Maier
Paul V. Maier

/s/ Norbert G. Riedel, Ph.D.
Norbert G. Riedel, Ph.D.

  President, Chief Executive Officer, and Director

  March 14, 2024

(Principal Executive Officer)

  Chief Financial Officer, Treasurer and Secretary
(Principal Financial and Accounting Officer)

  Director

  Director

  Director

  Director

83

  March 14, 2024

  March 14, 2024

  March 14, 2024

  March 14, 2024

  March 14, 2024

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 19.1

I. Purpose

Insider Trading Policy
(Revised December 2023)

Anyone  who  has  knowledge  of  material  nonpublic  information  may  be  considered  an  “Insider”  for  purposes  of  the  federal  securities  laws  prohibiting
insider trading. As an officer, director, or employee of Eton Pharmaceuticals, Inc. (the “Company”) you may be in a position to profit financially from
buying,  selling  or  dealing  stock  of  the  Company  or  another  publicly  traded  company  with  which  the  Company  has  business  dealings  (each,  a  “Third
Party”), or to disclose such information to a third party who does so (the “Tippee”). As a result, it is a violation of the policy of Eton Pharmaceuticals, Inc.
(the “Company”) and the federal securities laws for any officer, director or employee of the Company to (a) trade in securities of the Company while aware
of “material nonpublic information” concerning the Company or (b) communicate, “tip” or disclose material nonpublic information to outsiders so that they
may trade in securities of the Company based on that information.

To prevent the appearance of or improper insider trading or tipping, the Company has adopted this Insider Trading Policy (“Policy”) for all of its directors,
officers and employees and their family members, as well as for others who have access to information through business relationships with the Company.

The  consequences  of  prohibited  insider  trading  or  tipping  can  be  severe.  Violation  of  this  Policy  by  any  officer  or  employee  may  result  in  disciplinary
action by the Company up to and including immediate termination for cause. Moreover, persons violating insider trading or tipping rules may be required
to:

•

•

•

Disgorge the profit made or the loss avoided by the trading, whether received by the insider or someone receiving a tip;

Pay significant civil penalties; and

Pay a criminal penalty and serve time in jail.

In addition to individual sanctions, the Company may also be required to pay civil or criminal penalties.

II. Scope

A.

 Covered Persons

This  Policy  applies  to  all  directors,  officers  and  employees  of  the  Company  (“Insiders”)  and  their  respective  family  members  and  any  outsiders  or
consultants  whom  the  Compliance  Officer  (defined  below)  may  designate  as  Insiders  because  they  have  access  to  material  nonpublic  information
concerning the Company (collectively, “Covered Persons”).

B.

 Covered Transactions

The Policy applies to any and all transactions in the Company's securities. For purposes of the Policy, the Company's securities include its common stock,
options to purchase or sell common stock and any other type of securities that the Company may issue, such as preferred stock, convertible debentures,
warrants  and  exchange-traded  options  or  other  derivative  securities  and  short  sales  (collectively,  “Company  Securities”).  Transactions  in  Company
Securities include not only market transactions, but also private sales of Company Securities, pledges of Company Securities to secure a loan or margin
account, as well as charitable donations of Company Securities.

C.

 Policy Delivery

The Policy will be delivered to all directors, officers and employees and other designated persons at the start of their relationship with the Company.

III. Section 16 Persons and Designated Employees

A.

 Section 16 Persons.

Each member of the Company’s Board of Directors (the “Board”) and those officers of the Company designated by the Board to be Section 16 officers of
the Company (“Section 16 Persons”) are subject to the reporting provisions and trading restrictions of Section 16 of the Securities Exchange Act of 1934
(the “Act”)  and  the  underlying  rules  and  regulations  promulgated  by  the  U.S.  Securities  and  Exchange  Commission  (“SEC”).  Section  16  Persons  must
obtain prior approval of all trades in Company Securities from the Compliance Officer in accordance with the procedures set below.

B.

 Designated Employees.

In  addition  to  Section  16  Persons,  the  Compliance  Officer  may  designate  additional  officers  and  employees  as  “Designated  Employees.”  Designated
Employees are those officers or employees or outside consultants or contractors that the Company considers, because of their duties, to have regular access
to material nonpublic information. In addition to the Policy’s general proscription against insider trading or tipping, Designated Employees must comply
with additional trading restrictions detailed below.

IV. Definition of “Material Nonpublic Information”

A. “Material” Information

“Material Information” is any information about the Company that a reasonable investor would consider important in making an investment decision to buy
or sell the Company’s Securities. If an investor would want to buy or sell securities based in part on the information, the information would be considered
material. In simple terms, Material Information is any type of information that could reasonably be expected to affect the price of the Company’s Securities.
While it is not possible to identify all information that would be deemed “material,” the following types of information ordinarily would be considered
material:

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
•

•

•

•

•

•

•

•

Clinical developments;

Communications from and to government agencies;

Financial performance, especially quarterly and year-end earnings;

Significant changes in financial performance outlook or liquidity of the Company as a whole or of a reporting segment of the Company's business;

Company projections that significantly differ from external expectations;

Potential mergers and acquisitions or the sale of significant Company assets or subsidiaries;

New major products or product candidates, contracts, orders, suppliers, customers or finance sources, or the loss thereof;

Potential acquisitions of additional product candidates or technologies;

• Major discoveries or significant changes or developments in products or product lines, research or technologies;

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

Approvals or denials of requests for regulatory approval by government agencies of products, patents or trademarks;

Significant changes or developments in supplies or inventory, including significant product defects, recalls or product returns;

Significant pricing changes;

Stock splits, public or private securities/debt offerings or changes in Company dividend policies or amounts;

Significant changes in control or senior management;

Significant labor disputes or negotiations, including possible strikes;

Actual or potential exposure to major litigation, or the resolution of such litigation;

Government investigations;

Possible proxy contests;

Imminent or potential changes in the Company’s credit rating by a rating agency;

Voluntary calls of debt or preferred stock of the Company;

The contents of forthcoming publications that may affect the market price of Company Securities;

Statements by stock market analysts regarding the Company and/or its securities;

Significant changes in sales volumes, market share, production scheduling, product pricing or mix of sales;

Analyst upgrades or downgrades of a Company Security;

Significant changes in accounting treatment, write-offs or effective tax rate;

Impending bankruptcy or financial liquidity problems of the company or one of its subsidiaries or significant business partners;

Gain or loss of a substantial customer or supplier;

Information on cybersecurity incidents experienced by the Company that have not yet been made public; or

B. “Nonpublic” Information

Information is considered “nonpublic” until it has not been widely disseminated to the public through SEC filings, major newswire services, national news
services and financial news services and there has been sufficient time for the market to digest that information. For purposes of this Policy, information is
public after the close of trading on the second full business day after the Company's widespread public release of the information. Thus, no transaction
should take place until the third business day following the public release of the Material Information.

Designated  Employees  of  the  Company  who  are  most  likely  to  possess  Material  Information  about  the  Company  are  subject  to  trading  within  the
Company’s “window period” which commences on the third business day following public release of the Company’s annual or quarterly revenues, as the
case may be, and ends on the last trading day of the week preceding the end of each calendar quarter (the “Window Period”). The Window Period may be
modified  on  a  case-by-case  basis  from  time  to  time  if,  in  the  judgment  of  the  Compliance  Officer,  such  modification  does  not  pose  a  material  risk.
Additional employees of the Company may also be subject to the Window Period Policy from time to time as determined by the Compliance Officer.

V. Statement of Company Policy and Procedures

A. Prohibited Activities

No Insider may trade in Company Securities while aware of material nonpublic information concerning the Company.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
No Insider may trade in Company Securities during any special trading blackout periods as designated by the Compliance Officer. The deviation of any
blackout period as well as those Insiders subject to the blackout shall be determined by the Compliance Officer. Moreover, the Insider will not disclose to
any person the applicability of a special blackout period without prior permission of the Board.

No  Section  16  Person  or  Designated  Employee  may  trade  in  Company  Securities  without  prior  written  approval  of  the  Compliance  Officer  under  the
procedures set forth below. To the extent possible, Section 16 Persons and Designated Employees should retain all records and documents that support their
reasons for making each trade.

No Section 16 Person or Designated Employee may trade in Company Securities outside of the applicable Window Period.
The Compliance Officer may not trade in Company Securities unless the trade(s) have been approved by the Chief Executive Officer in accordance with
the procedures set forth below.

No Insider may “tip” or disclose material nonpublic information concerning the Company to any outside person, including family members, even if that
person is expected to hold such “tip” in confidence, unless required as part of that Insider's regular duties for the Company or authorized by the Board. In
the  case  of  inadvertent  disclosure  to  an  outside  person,  the  Insider  must  advise  the  Compliance  Officer  as  soon  as  the  inadvertent  disclosure  has  been
discovered. To protect against inadvertent disclosures, all inquiries from outsiders regarding material nonpublic information about the Company must be
forwarded to the Compliance Officer.

No Insider may give trading advice of any kind about the Company to anyone, whether or not such Insider is aware of material nonpublic information
about the Company.

No Insider may trade in any interest or position relating to the future price of Company Securities, such as a put, call or short sale.

Without  the  specific  prior  approval  of  the  Compliance  Officer,  the  Chief  Executive  Officer,  or  the  Audit  Committee,  no  Insider  shall  accept  outside
employment, as a consultant, independent contractor or employee, where the Insider is being compensated for the Insider's knowledge of the Company or
the industry or potential products of the Company.

Without the specific prior approval of the Audit Committee, no Insider shall respond to market rumors or otherwise make any public statements regarding
the Company or its prospects. This includes responding to or commenting on Internet-based bulletin boards or social media platforms. If you become aware
of any rumors or false statements, you should report them to the Compliance Officer.

B. Trading Windows and Blackout Periods

Provided  that  no  other  restrictions  on  trading  in  Company  Securities  apply,  Section  16  Persons  and  Designated  Employees  may  trade  in  Company
Securities during and only during the Window Period.

Notwithstanding  the  above  provisions,  any  Section  16  Person  or  Designated  Employee  who  is  aware  of  material  nonpublic  information  concerning  the
Company may not trade in Company Securities even during a trading window until three business days following the widespread public release of such
information.

C. Procedures for Approving Trades by Section 16 Individuals

No Section 16 Person or Designated Employee may trade in Company Securities until:

•

•

The Section 16 Person or Designated Employee seeking to trade has notified the Compliance Officer in writing prior to the proposed trade(s) and
the amount and nature of the proposed trade(s); and

The Section 16 Person or Designated Employee seeking to trade has certified in writing to the Compliance Officer no more than three business
days prior to the proposed trade(s) that he or she is not aware of material nonpublic information concerning the Company.

If the Compliance Officer desires to complete any trades involving Company Securities, he or she must first obtain the approval of the Chief Executive
Officer.

The  existence  of  the  foregoing  approval  procedures  does  not  in  any  way  obligate  the  Compliance  Officer,  Chief  Executive  Officer  or  the  Board  of  the
Company to approve any trades requested by Section 16 Persons or the Compliance Officer.

All trades approved under this section must be exercised within 24 hours of the approval (the “Approval Period”). Provided, however, if the Insider comes
into possession of material nonpublic information before trading, the Insider may not trade. Trades not exercised within the Approval Period require new
approval from the Compliance Officer.

VI. Exceptions to Application of Policy

A.

 Employee Benefit Plans

The trading prohibitions and restrictions set forth in this Policy do not apply to periodic contributions by the Company or employees to the Company’s
Stock  Purchase  Plan  (“SPP”)  pursuant  to  the  terms  and  conditions  of  those  plans.  However,  no  officer  or  employee  may  alter  his  or  her  instructions
regarding the purchase or sale of Company Securities in such plans:

• While aware of material nonpublic information;

•

•

In the case of Section 16 Persons or Designated Employees, prior to receiving approval of the purchase or sale as described above; and

In the case of Section 16 Persons and Designated Employees, while any applicable Window Period is closed or applicable special blackout period
is in effect.

Stock Option Plans. Insiders may exercise company stock options where no company stock is sold in the market. Cashless sales—e.g., “cashless sales”
where company stock is sold to pay for exercising the options—are considered under this Policy to be transactions in Company Securities and must comply

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
with the provisions of this Policy, including the applicability of any prior approval, Window Period or blackout period requirements as they may apply to
an Insider. No cashless sale is permitted when the insider is in possession of material, nonpublic information, except as provided below.

B.

 Rule 10b5-1 Plans

Exchange Act Rule 10b5-l was adopted by the SEC to protect persons from insider trading liability for transactions under a written trading plan previously
established at a time when the insider did not possess material nonpublic information. Under a properly established 10b5-1 plan with respect to securities
(“10b5-1 Plan”), Insiders may complete transactions in Company Securities at any time, including during blackout periods and outside the Window Period
or even when the Insider possesses material nonpublic information. Thus, a 10b5-1 Plan offers an opportunity for Insiders to establish a systematic program
of transactions in Company Securities over periods of time that might include periods in which such transactions would otherwise be prohibited under the
federal securities laws or this policy. A variety of arrangements can be structured to meet the requirements of Rule 10b5-1. In particular, a 10b5-1 Plan can
take the form of a blind trust, other trust, pre-scheduled stock option exercises and sales, pre-arranged trading instructions and other brokerage and third-
party arrangements over which the Insider has no control once the plan takes effect.

Insiders who desire to implement a 10b5-1 Plan must first obtain approval of the plan by the Compliance Officer. To be eligible for approval, the 10b5-1
Plan:

• Must be established during a trading window (and not during any black out period);

•

Bust be in writing;

• Must either irrevocably set forth the future date or dates on which purchase or sale of securities are to be made, the prices at which the securities
are to be purchased or sold, the broker who will be responsible for effecting the transactions (or method of transaction if not through a broker), or
provide a formula for determining the price of the securities to be purchased or sold and the date or dates on which the transactions are to be
completed;

• May not permit the direct or indirect exercise of any influence over the timing or terms of the purchase or sale by the Insider; and

• May not take effect until after the plan is approved by the Board.

The Compliance Officer will maintain a copy of all 10b5-1 Plans.

The Insider must provide the Compliance Officer written notice of any termination or modification (in which case, the modification must be approved in
writing by the Compliance Officer prior to effectiveness and may not take effect until after the plan is approved by the Board.

VII. Reporting of Violations

Any Insider who violates this Policy or any federal, state or self-regulatory organization (“SRO”) rule or law governing insider trading or tipping or knows
of any such violation by any other Insider, must report the violation immediately to the Compliance Officer. Upon receipt of notice of a potential violation
of this Policy, the Compliance Officer

•

•

•

Shall make inquiry either through the office of the Company’s counsel or with assistance of outside counsel, to determine whether a violation may
have occurred;

Shall report the potential violation of this Policy to the Audit Committee if the Compliance Officer concludes a violation occurred or if the
Compliance Officer is unable to conclude that no violation occurred; and

Upon determining that any such violation has occurred, in consultation with the Company's Disclosure Committee and, where appropriate, the
Chair of the Audit Committee of the Board, will determine whether the Company should release any material nonpublic information.

If the Compliance Officer or Audit Committee determines that a violation of the Policy occurred, they may discipline the Insider, including immediate
termination. The Audit Committee may also report the violation to federal or state law enforcement agencies and/or applicable SRO.

VIII. Inquiries

Please direct all inquiries regarding any of the provisions or procedures of this Policy to the Compliance Officer.

IX. Insider Trading Compliance Officer

The Company has designated the Chief Financial Officer as its Insider Trading Compliance Officer (the “Compliance Officer”). The Compliance Officer
will review and either approve or prohibit all proposed trades by Section 16 Persons in accordance with the procedures set forth above.

In addition to the trading approval duties described above, the duties of the Compliance Officer shall include the following:

•

Administering this Policy and monitoring and enforcing compliance with all Policy provisions and procedures;

• With the assistance of the Human Resources Department, overseeing the training of new and existing officers, directors, employees and others on

the requirements of this Policy;

Responding to all inquiries relating to this Policy and its procedures;

Designating and announcing special trading blackout periods during which Insiders, that the Compliance Officer determines, may not trade in
Company Securities;

Providing copies of this Policy and other appropriate materials to all current and new directors, officers, employees and such other persons whom
the Compliance Officer determines may regularly have access to material nonpublic information concerning the Company;

•

•

•

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
•

•

Administering, monitoring and enforcing compliance with all federal, state and SRO insider trading statutes, regulations and rules;

Proposing recommendations for revisions to the Policy to the board of directors as necessary to reflect changes in insider trading laws, regulations
or rules of any federal or state governmental body or SRO; and

• Maintaining as Company records originals or copies of all documents required by the provisions of this Policy or the procedures set forth herein,

and copies of all required SEC reports relating to insider trading.

The Compliance Officer may designate one or more individuals who may perform the Compliance Officer's duties in the event that the Compliance Officer
is unable or unavailable to perform such duties.

 
 
 
 
 
 
 
 
 
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in Registration Statement Nos. 333-228493 and 333-230572 on Form S-8 and Registration Statement
Nos.  333-235329  and  333-240252  on  Form  S-3  of  our  report  dated  March  14,  2024,  relating  to  the  financial  statements  of  Eton  Pharmaceuticals,  Inc.,
appearing in this Annual Report on Form 10-K of Eton Pharmaceuticals, Inc. for the year ended December 31, 2023.

Exhibit 23.1

/s/ KMJ Corbin & Company LLP

Irvine, California
March 14, 2024

 
 
 
 
 
 
CERTIFICATION PURSUANT TO
RULES 13a-14(a) AND 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934,
AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 31.1

I, Sean E. Brynjelsen, certify that:

1. I have reviewed this Annual Report on Form 10-K of Eton Pharmaceuticals, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make
the  statements  made,  in  light  of  the  circumstances  under  which  such  statements  were  made,  not  misleading  with  respect  to  the  period  covered  by  this
report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects

the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in
Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for
the registrant and have:

(a)  Designed  such  disclosure  controls  and  procedures,  or  caused  such  disclosure  controls  and  procedures  to  be  designed  under  our
supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those
entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under
our  supervision,  to  provide  reasonable  assurance  regarding  the  reliability  of  financial  reporting  and  the  preparation  of  financial  statements  for  external
purposes in accordance with generally accepted accounting principles;

the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s
most  recent  fiscal  quarter  (the  registrant’s  fourth  fiscal  quarter  in  the  case  of  an  annual  report)  that  has  materially  affected,  or  is  reasonably  likely  to
materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to

the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are

(b)  Any  fraud,  whether  or  not  material,  that  involves  management  or  other  employees  who  have  a  significant  role  in  the  registrant’s

internal control over financial reporting.

Date: March 14, 2024

By:

/s/ Sean E. Brynjelsen
Sean E. Brynjelsen
Principal Executive Officer

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
CERTIFICATION PURSUANT TO
RULES 13a-14(a) AND 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934,
AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 31.2

I, James Gruber, certify that:

1. I have reviewed this Annual Report on Form 10-K of Eton Pharmaceuticals, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make
the  statements  made,  in  light  of  the  circumstances  under  which  such  statements  were  made,  not  misleading  with  respect  to  the  period  covered  by  this
report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects

the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in
Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for
the registrant and have:

(a)  Designed  such  disclosure  controls  and  procedures,  or  caused  such  disclosure  controls  and  procedures  to  be  designed  under  our
supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those
entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under
our  supervision,  to  provide  reasonable  assurance  regarding  the  reliability  of  financial  reporting  and  the  preparation  of  financial  statements  for  external
purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about

the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s

most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to
materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to

the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are

(b)  Any  fraud,  whether  or  not  material,  that  involves  management  or  other  employees  who  have  a  significant  role  in  the  registrant’s

internal control over financial reporting.

Date: March 14, 2024

By:

/s/ James Gruber
James Gruber
Principal Financial and Accounting Officer

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ETON PHARMACEUTICALS, INC.
PRINCIPAL EXECUTIVE OFFICER AND PRINCIPAL FINANCIAL OFFICER
PURSUANT TO 18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 32.1

Pursuant to the requirement set forth in Rule 13a-14(b) of the Securities Exchange Act of 1934, as amended, (the “Exchange Act”), and Section
1350  of  Chapter  63  of  Title  18  of  the  United  States  Code  (18  U.S.C.  §1350),  Sean  E.  Brynjelsen,  President  and  Chief  Executive  Officer  of  Eton
Pharmaceuticals, Inc. (the “Company”), and James Gruber, Chief Financial Officer of the Company, each hereby certifies that, to the best of his knowledge:

1. The Company’s Annual Report on Form 10-K for the period ended December 31, 2023 (the “Annual Report”), to which this Certification is

attached as Exhibit 32.1, fully complies with the requirements of Section 13(a) or Section 15(d) of the Exchange Act; and

2. The information contained in the Annual Report fairly presents, in all material respects, the financial condition and results of operations of the

Company.

IN WITNESS WHEREOF, the undersigned have set their hands hereto as of the 14th day of March, 2024.

/s/ Sean E. Brynjelsen
Sean E. Brynjelsen
President and Chief Executive Officer
(Principal Executive Officer)

  /s/ James Gruber
  James Gruber

Chief Financial Officer
(Principal Financial and Accounting Officer)

*

This certification accompanies the Form 10-K to which it relates, is not deemed filed with the Securities and Exchange Commission and is not to be
incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Exchange Act (whether made before or
after the date of the Form 10-K), irrespective of any general incorporation language contained in such filing.

 
 
 
 
 
 
 
 
 
 
 
Exhibit 97

Introduction

Eton Pharmaceuticals, Inc.
Clawback Policy

The Board of Directors (the “Board”) of Eton Pharmaceuticals, Inc. (the “Company”) believes that it is in the best interests of the Company and its
stockholders to adopt a policy that reflects that portion of the Company’s compensation philosophy related to incentive compensation. The Board has
therefore adopted this policy which provides for the recoupment of certain executive compensation in the event of an accounting restatement resulting from
material noncompliance with financial reporting requirements under the federal securities laws (the "Policy"). This Policy is designed to comply with
Section 10D of the Securities Exchange Act of 1934 (the "Exchange Act") and Nasdaq Listing Rule 5608 (the "Clawback Listing Standards").

Administration

This Policy shall be administered by the Board or, if so designated by the Board, the Compensation Committee, in which case references herein to the
Board shall be deemed references to the Compensation Committee. Any determinations made by the Board shall be final and binding on all affected
individuals.

Covered Executives

This Policy applies to the Company's current and former executive officers, as determined by the Board in accordance with the definition in Section 10D of
the Exchange Act and the Clawback Listing Standards, who may from time to time be deemed subject to the Policy by the Board ("Covered Executives").

Recoupment; Accounting Restatement

In the event the Company is required to prepare an accounting restatement of its financial statements due to the Company's material noncompliance 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, the Board will require reimbursement or forfeiture of any excess Incentive Compensation
received by any Covered Executive during the three completed fiscal years immediately preceding the date on which the Company is required to prepare an
accounting restatement.

Incentive Compensation

For purposes of this Policy, Incentive Compensation means any of the following; provided that, such compensation is granted, earned, or vested based
wholly or in part on the attainment of a financial reporting measure:

● Annual bonuses and other short- and long-term cash incentives.

● Stock options.

● Stock appreciation rights.

● Restricted stock.

● Restricted stock units.

● Performance shares.

● Performance units.

Financial reporting measures include:

● Company stock price.

● Total shareholder return.

● Revenues.

● Net income.

● Earnings before interest, taxes, depreciation, and amortization (EBITDA).

● Funds from operations.

● Liquidity measures such as working capital or operating cash flow.

● Return measures such as return on invested capital or return on assets.

● Earnings measures such as earnings per share.

Excess Incentive Compensation: Amount Subject to Recovery

The amount to be recovered will be the excess of the Incentive Compensation paid to the Covered Executive based on the erroneous data over the Incentive
Compensation that would have been paid to the Covered Executive had it been based on the restated results, as determined by the Board, without regard to

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
any taxes paid by the Covered Executive in respect of the Incentive Compensation paid based on the erroneous data.

If the Board cannot determine the amount of excess Incentive Compensation received by the Covered Executive directly from the information in the
accounting restatement, then it will make its determination based on a reasonable estimate of the effect of the accounting restatement.

Method of Recoupment

The Board will determine, in its sole discretion, the method for recouping Incentive Compensation hereunder which may include, without limitation:

(a) requiring reimbursement of cash Incentive Compensation previously paid;

(b) seeking recovery of any gain realized on the vesting, exercise, settlement, sale, transfer, or other disposition of any equity-based awards;

(c) offsetting the recouped amount from any compensation otherwise owed by the Company to the Covered Executive;

(d)) cancelling outstanding vested or unvested equity awards; and/or

(e) taking any other remedial and recovery action permitted by law, as determined by the Board.

No Indemnification

The Company shall not indemnify any Covered Executives against the loss of any incorrectly awarded Incentive Compensation.

Interpretation

The Board is authorized to interpret and construe this Policy and to make all determinations necessary, appropriate, or advisable for the administration of
this Policy. It is intended that this Policy be interpreted in a manner that is consistent with the requirements of Section 10D of the Exchange Act, any
applicable rules or standards adopted by the Securities and Exchange Commission, and the Clawback Listing Standards.

Effective Date

This Policy shall be effective as of November 10, 2023 (the "Effective Date") and shall apply to Incentive Compensation that is received by Covered
Executives on or after the Effective Date, even if such Incentive Compensation was approved, awarded, or granted to Covered Executives prior to the
Effective Date.

Amendment; Termination

The Board may amend this Policy from time to time in its discretion and shall amend this Policy as it deems necessary to reflect final regulations adopted
by the Securities and Exchange Commission under Section 10D of the Exchange Act and to comply with the Clawback Listing Standards and any other
rules or standards adopted by a national securities exchange on which the Company's securities are listed. The Board may terminate this Policy at any time.

Other Recoupment Rights

Any right of recoupment under this Policy is in addition to, and not in lieu of, any other remedies or rights of recoupment that may be available to the
Company pursuant to the terms of any similar policy in any employment agreement, equity award agreement, or similar agreement and any other legal
remedies available to the Company.

Relationship to Other Plans and Agreements

The Board intends that this Policy will be applied to the fullest extent of the law. The Board may require that any employment agreement, equity award
agreement, or similar agreement entered into on or after the Effective Date shall, as a condition to the grant of any benefit thereunder, require a Covered
Executive to agree to abide by the terms of this Policy. In the event of any inconsistency between the terms of the Policy and the terms of any employment
agreement, equity award agreement, or similar agreement under which Incentive Compensation has been granted, awarded, earned or paid to a Covered
Executive, whether or not deferred, the terms of the Policy shall govern.

[Acknowledgment

The Covered Executive shall sign an acknowledgment form [in the form attached hereto as Exhibit [INSERT EXHIBIT NUMBER OR LETTER] in which
they acknowledge that they have read and understand the terms of the Policy and are bound by the Policy.]

Impracticability

The Board shall recover any excess Incentive Compensation in accordance with this Policy unless such recovery would be impracticable, as determined by
the Board in accordance with Rule 10D-1 of the Exchange Act and the listing standards of the national securities exchange on which the Company's
securities are listed.

Successors

This Policy shall be binding and enforceable against all Covered Executives and their beneficiaries, heirs, executors, administrators or other legal
representatives.