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Soligenix, Inc.

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FY2023 Annual Report · Soligenix, Inc.
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UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-K

(Mark One)

☒

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

☐

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

For the Fiscal Year Ended December 31, 2023

For the transition period from ____________ to ____________

Commission File No. 001-14778

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

Delaware
(State or other jurisdiction of
incorporation or organization)

29 EMMONS DRIVE, SUITE B-10
PRINCETON, NJ
(Address of principal executive offices)

41-1505029
(I.R.S. Employer
Identification Number)

08540
(Zip Code)

(609) 538-8200

(Registrant’s telephone number, including area code)

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

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

   Trading Symbol (s)

SNGX

Name of each exchange on which registered
The Nasdaq Capital Market

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

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

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

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

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

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, 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. (Check one):

Large accelerated filer
Non-accelerated filer

☐
⌧

Accelerated filer
Smaller reporting company
Emerging growth company

☐
☒
☐

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

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

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

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

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

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

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

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

The  aggregate  market  value  of  the  common  stock  held  by  non-affiliates  of  the  registrant  was  $6,846,887  (assuming,  for  this  purpose,  that  executive
officers, directors and holders of 10% or more of the common stock are affiliates), based on the closing price of the registrant’s common stock as reported on
The Nasdaq Capital Market on June 30, 2023.

On March 8, 2024, there were 10,524,437 shares of the registrant’s common stock outstanding.

DOCUMENTS INCORPORATED BY REFERENCE: None.

  
Table of Contents

SOLIGENIX, INC.

ANNUAL REPORT ON FORM 10-K
For the Year Ended December 31, 2023

Table of Contents

Item    

Cautionary Note Regarding Forward-Looking Statements

Description

Part I

1.
1A.
1B.
1C
2.
3.

5.

6.
7.
8.
9.
9A.
9B.
9C.

10.
11.
12.
13.
14.

Business
Risk Factors
Unresolved Staff Comments
Cybersecurity
Properties
Legal Proceedings

Part II

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

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

Exhibits and Financial Statement Schedules

15.
Signatures
Consolidated Financial Statements

Part IV

i

    Page

ii

1
27
51
51
52
52

53
54
54
63
63
64
65
65

66
71
75
77
78

78
83
F-1

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CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This Annual Report on Form 10-K contains forward-looking statements, within the meaning of the Private Securities Litigation
Reform Act of 1995, that reflect our current expectations about our future results, performance, prospects and opportunities.
These forward-looking statements are not guarantees of future performance and are subject to significant risks, uncertainties,
assumptions  and  other  factors,  which  are  difficult  to  predict  and  may  cause  actual  results  to  differ  materially  from  those
expressed  in,  or  implied  by,  any  forward-looking  statements.  The  forward-looking  statements  within  this  report  may  be
identified by words such as “believes,” “anticipates,” “expects,” “intends,” “may,” “would,” “will” and other similar expressions.
However, these words are not the exclusive means of identifying these statements. Statements that are not historical facts are
based  on  our  current  expectations,  beliefs,  assumptions,  estimates,  forecasts  and  projections  for  our  business  and  the
industry and markets related to our business and are forward-looking statements.

Actual  outcomes  and  results  may  differ  materially  from  what  is  expressed  in  such  forward-looking  statements.  Important
factors which may affect these actual outcomes and results include, without limitation:

● uncertainty as to whether our product candidates will be sufficiently safe and effective to support regulatory approvals;

● uncertainty  inherent  in  developing  therapeutics  and  vaccines,  and  manufacturing  and  conducting  preclinical  and

clinical trials;

● our  ability  to  obtain  future  financing  or  funds  when  needed,  either  through  the  raising  of  capital,  the  incurrence  of

convertible or other indebtedness or through strategic financing or commercialization partnerships;

● our ability to secure government grants or contracts to support our vaccine development;

● our ability to maintain our listing on Nasdaq and meet Nasdaq’s listing requirements;

● that product development and commercialization efforts will be reduced or discontinued due to difficulties or delays in

clinical trials or a lack of progress or positive results from research and development efforts;

● maintenance and progression of our business strategy;

● the possibility that our products under development may not gain market acceptance;

● our expectations about the potential market sizes and market participation potential for our product candidates may

not be realized;

● our expected revenues (including sales, milestone payments and royalty revenues) from our product candidates and

any related commercial agreements of ours may not be realized;

● the ability of our manufacturing partners to supply us or our commercial partners with clinical or commercial supplies
of our products in a safe, timely and regulatory compliant manner and the ability of such partners to timely address
any regulatory issues that have arisen or may arise in the future;

● competition  existing  today  or  that  may  arise  in  the  future,  including  the  possibility  that  others  may  develop

technologies or products superior to our products;

● the  effect  that  global  pathogens  could  have  on  financial  markets,  materials  sourcing,  service  providers,  patients,

clinical study sites, governments and population (e.g. Coronavirus Disease 2019 (“COVID-19”)); and

● other factors, including those “Risk Factors” set forth under Part I, Item 1A. “Risk Factors” in this Annual Report.

Except  as  expressly  required  by  the  federal  securities  laws,  we  undertake  no  obligation  to  publicly  update  or  revise  any
forward-looking statements to reflect events or circumstances occurring subsequent to the filing of this Form 10-K with the

ii

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United States (“U.S.”) Securities and Exchange Commission (“the SEC”) or for any other reason. You should carefully review
and consider the various disclosures we make in this report and our other reports filed with the SEC that attempt to advise
interested parties of the risks, uncertainties and other factors that may affect our business.

Note Regarding Reverse Stock Split

On February 9, 2023, we completed a reverse stock split of our issued and outstanding shares of common stock at a ratio of
one-for-fifteen, whereby, every fifteen shares of our issued and outstanding common stock was converted automatically into
one issued and outstanding share of common stock without any change in the par value per share. No fractional shares were
issued as a result of the reverse stock split. Any fractional shares that would otherwise have resulted from the reverse stock
split  were  rounded  up  to  the  next  whole  number.  Our  common  stock  began  trading  on  The  NASDAQ  Capital  Market  on  a
reverse split basis at the market opening on February 10, 2023. All share and per share data have been restated to reflect
this reverse stock split.

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Item 1. Business

PART I

This  Annual  Report  on  Form  10-K  contains  statements  of  a  forward-looking  nature  relating  to  future  events  or  our  future
financial performance. These statements are only predictions and actual events or results may differ materially. In evaluating
such statements, you should carefully consider the various factors identified in this report that could cause actual results to
differ  materially  from  those  indicated  in  any  forward-looking  statements,  including  those  set  forth  in  “Risk  Factors”  in  this
Annual Report on Form 10-K. See “Cautionary Note Regarding Forward Looking Statements.”

Our Business Overview

We are a late-stage biopharmaceutical company focused on developing and commercializing products to treat rare diseases
where there is an unmet medical need. We maintain two active business segments: Specialized BioTherapeutics and Public
Health Solutions.

Our  Specialized  BioTherapeutics  business  segment  is  developing  and  moving  toward  potential  commercialization  of
HyBryte™ (a proposed proprietary name of SGX301 or synthetic hypericin sodium), a novel photodynamic therapy (“PDT”),
utilizing topical synthetic hypericin activated with safe visible light for the treatment of cutaneous T-cell lymphoma (“CTCL”).
With  successful  completion  of  the  Phase  3  FLASH  (Fluorescent  Light  Activated  Synthetic  Hypericin)  study,  regulatory
approval is being pursued in the U.S. and Europe. Following submission of a new drug application (“NDA”) for HyBryte™ in
the treatment of CTCL, we received a refusal to file (“RTF”) letter from the U.S. Food and Drug Administration (“FDA”). We
had  a  Type  A  meeting  with  the  FDA  to  clarify  and  respond  to  the  issues  identified  in  the  RTF  letter  and  to  seek  additional
guidance concerning information that the FDA would require for a resubmitted NDA to be deemed acceptable to file, in order
to  advance  HyBryte™  towards  U.S.  marketing  approval  and  commercialization.  In  order  to  accept  an  NDA  filing  for
HyBryte™, the FDA is requiring positive results from a second, Phase 3 pivotal study in addition to the Phase 3, randomized,
double-blind, placebo-controlled FLASH study previously conducted in this orphan indication. Based on this feedback, we are
collaboratively  engaging  in  active  discussions  with  both  the  FDA  and  the  European  Medicines  Agency  (“EMA”)  in  order  to
define the protocol and evaluate the feasibility of conducting the additional Phase 3 clinical trial evaluating HyBryte™ in the
treatment of CTCL in support of potential marketing approval.

Development programs in this business segment also include expansion of synthetic hypericin (SGX302) into psoriasis, our
first-in-class  Innate  Defense  Regulator  (“IDR”)  technology,  and  dusquetide  (SGX942  and  SGX945)  for  the  treatment  of
inflammatory diseases, including oral mucositis in head and neck cancer and aphthous ulcers in Behçet’s Disease.

Our Public Health Solutions business segment includes development programs for RiVax®, our ricin toxin vaccine candidate
and  SGX943,  our  therapeutic  candidate  for  antibiotic  resistant  and  emerging  infectious  disease  and  our  vaccine  programs
targeting  filoviruses  (such  as  Marburg  and  Ebola)  and  CiVax™,  our  vaccine  candidate  for  the  prevention  of  COVID-19
(caused by SARS-CoV-2). The development of our vaccine programs incorporates the use of our proprietary heat stabilization
platform technology, known as ThermoVax®. To date, this business segment has been supported with government grant and
contract funding from the National Institute of Allergy and Infectious Diseases (“NIAID”), the Biomedical Advanced Research
and Development Authority and the Defense Threat Reduction Agency (“DTRA”).

An outline of our business strategy follows:

● Following positive primary endpoint results for the Phase 3 FLASH (Fluorescent Light Activated Synthetic Hypericin)
clinical trial of HyBryte™ in CTCL as well as further statistically significant improvement in response rates with longer
treatment (18 weeks compared to 12 and 6 weeks of treatment), collaboratively engage in discussions with both the
FDA and EMA in order to define the protocol and evaluate the feasibility of conducting a second clinical study in order
to advance HyBryte™ towards U.S. marketing approval and commercialization while continuing to explore potential
marketing approval and partnership in Europe.

● Expanding development of synthetic hypericin under the research name SGX302 into psoriasis with the conduct of a
Phase 2a clinical trial, following the positive Phase 3 FLASH study and positive proof-of-concept demonstrated in a
small Phase 1/2 pilot study in mild-to-moderate psoriasis patients.

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● Following  feedback  from  the  United  Kingdom  (“UK”)  Medicines  and  Healthcare  products  Regulatory  Agency
(“MHRA”)  that  a  second  Phase  3  clinical  trial  of  SGX942  (dusquetide)  in  the  treatment  of  oral  mucositis  would  be
required to support a marketing authorization; design a second study and attempt to identify a potential partner(s) to
continue this development program.

● Expanding development of dusquetide under the research name SGX945 into Behçet’s Disease with the conduct of a
Phase 2a clinical trial, where previous studies with dusquetide in oral mucositis have validated the biologic activity in
aphthous ulcers induced by chemotherapy and radiation.

● Continue  development  of  our  heat  stabilization  platform  technology,  ThermoVax®,  in  combination  with  programs  for
RiVax®  (ricin  toxin  vaccine),  and  filovirus  vaccines  (targeting  Ebola,  Sudan,  and  Marburg  viruses  and  multivalent
combinations), with U.S. government and non-governmental organization funding support.

● Continue  to  apply  for  and  secure  additional  government  funding  for  each  of  our  Specialized  BioTherapeutics  and

Public Health Solutions programs through grants, contracts and/or procurements.

● Pursue  business  development  opportunities  for  pipeline  programs,  as  well  as  explore  all  strategic  alternatives,

including but not limited to merger/acquisition strategies.

● Acquire or in-license new clinical-stage compounds for development, as well as evaluate new indications with existing

pipeline compounds for development.

Corporate Information

We were incorporated in Delaware in 1987 under the name Biological Therapeutics, Inc. In 1987, we merged with Biological
Therapeutics, Inc., a North Dakota corporation, pursuant to which we changed our name to “Immunotherapeutics, Inc.” We
changed  our  name  to  “Endorex  Corp.”  in  1996,  to  “Endorex  Corporation”  in  1998,  to  “DOR  BioPharma,  Inc.”  in  2001,  and
finally to “Soligenix, Inc.” in 2009. Our principal executive offices are located at 29 Emmons Drive, Suite B-10, Princeton, New
Jersey 08540 and our telephone number is (609) 538-8200.

Our Product Candidates in Development

The following tables summarize our product candidates under development:

Specialized BioTherapeutics Product Candidates

Soligenix Product Candidate     
HyBryte™

Therapeutic Indication

Cutaneous T-Cell Lymphoma

2

Stage of Development

trial 

Phase 

continued 

in  March  2020 

Phase  2 
trial  completed;  demonstrated
significantly  higher  response  rate  compared  to
placebo; 
completed;
3 
demonstrated statistical significance in primary
(Cycle  1)  and
endpoint 
demonstrated 
in
improvement 
treatment response with extended treatment in
April  2020  (Cycle  2)  and  October  2020  (Cycle
3);  NDA  submitted  December  2022;  FDA  RTF
letter received February 2023; Type A meeting
with the FDA convened April 2023, in which the
FDA determined that a second positive Phase
3  study  would  be  required  to  support  a  NDA
formal
submission;  actively  engaged 
protocol discussions with both the FDA and the
EMA  to  define  the  protocol  for,  and  evaluate
feasibility of conducting, an additional Phase 3
clinical trial (as requested

in 

    
Table of Contents

Soligenix Product Candidate     

Therapeutic Indication

SGX302

Mild-to-Moderate Psoriasis

SGX942†

Oral Mucositis in Head and Neck
Cancer

SGX945

Aphthous Ulcers in Behçet’s Disease

Stage of Development
by  the  FDA);  final  outcome  of  discussions
anticipated in the first half of 2024

Positive  proof-of-concept  demonstrated  in  a
small Phase 1/2 pilot study; Phase 2a protocol
and  Investigation  New  Drug  (“IND”)  clearance
the  FDA;  Phase  2a  study
received 
remains 
demonstrated
biological  effect  in  Cohort  1  and  clinically
meaningful benefit in Cohort 2

ongoing 

having 

from 

trial  completed;  demonstrated
Phase  2 
significant response compared to placebo with
long-term  (12  month)  safety  also
positive 
trial 
reported;  Phase  3  clinical 
results
announced  December  2020: 
the  primary
endpoint  of  median  duration  of  severe  oral
mucositis  (“SOM”)  did  not  achieve  the  pre-
specified  criterion  for  statistical  significance
(p≤0.05);  although  biological  activity  was
observed  with  a  56%  reduction  in  the  median
duration  of  SOM  from  18  days  in  the  placebo
group  to  8  days  in  the  SGX942  treatment
group;  analyzed  full  dataset  from  Phase  3
study and designing a second Phase 3 clinical
trial;  continued  development  contingent  upon
identification of partnership

Phase 2a protocol and IND clearance received
from the FDA; Phase 2a study to be initiated in
the second half of 2024

Soligenix Product Candidate
ThermoVax®

Indication

Stage of Development

    Thermostability of vaccines for Ricin toxin,

    Pre-clinical

Ebola, and Marburg viruses

Public Health Solutions†

RiVax®

SGX943

Vaccine against Ricin Toxin Poisoning

Phase 1a, 1b, and 1c trials completed, safety and
neutralizing 
protection
demonstrated

antibodies 

for 

Therapeutic against Emerging
Infectious Diseases

Pre-clinical

† Contingent upon continued government contract/grant funding or other funding source.

Specialized BioTherapeutics Overview

Synthetic Hypericin

Synthetic Hypericin is a potent photosensitizer that is topically applied to skin lesions, taken up by cutaneous T-cells and then
activated by safe visible light. Hypericin is also found in several species of Hypericum plants, although the active moiety used
in HyBryte™ and SGX302 is chemically synthesized by a proprietary manufacturing process and not extracted from plants.
Importantly, hypericin is optimally activated with visible light thereby avoiding the negative consequences of

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ultraviolet (“UV”) light. Other light therapies using UVA or UVB light can result in serious adverse effects including secondary
skin cancers.

Combined  with  photoactivation,  in  clinical  trials  synthetic  hypericin  has  demonstrated  significant  anti-proliferative  effects  on
activated normal human lymphoid cells and inhibited growth of malignant T-cells isolated from CTCL patients. In both settings,
it appears that the mode of action is an induction of cell death in a concentration as well as a light dose-dependent fashion.
These effects appear to result, in part, from the generation of singlet oxygen during photoactivation of hypericin.

Synthetic hypericin is one of the most efficient known generators of singlet oxygen, the key component for phototherapy. The
generation  of  singlet  oxygen  induces  necrosis  and  apoptosis  in  cells.  The  use  of  topical  synthetic  hypericin  coupled  with
directed visible light results in generation of singlet oxygen only at the treated site. We believe that the use of visible light (as
opposed to cancer-causing UV light) is a major advance in photodynamic therapy. In a small published Phase 1/2 proof of
concept  pilot  clinical  study  using  synthetic  hypericin  twice  weekly  for  six  weeks,  statistically  significant  efficacy  was
demonstrated  in  patients  with  CTCL  (58.3%  response,  p=0.04)  and  psoriasis  (80%  response,  p<0.02).  Subsequently,  a
published Phase 3 study in CTCL has further confirmed the biological efficacy of synthetic hypericin (termed HyBryte™ in the
context of CTCL).

HyBryte™ – for Treating Cutaneous T-Cell Lymphoma

HyBryte™  is  a  novel,  first-in-class,  PDT,  that  utilizes  safe  visible  light  for  activation.  The  active  ingredient  in  HyBryte™  is
synthetic hypericin, a photosensitizer which is topically applied to skin lesions and then activated by visible fluorescent light 16
to 24 hours later.

Based on the positive and previously published Phase 1/2 results, we initiated our Phase 3 clinical study of HyBryte™ for the
treatment of CTCL during December 2015 and completed the trial in 2020. This trial, referred to as the “FLASH” (Fluorescent
Light Activated Synthetic Hypericin)  study,  aimed  to  evaluate  the  response  to  HyBryte™  as  a  skin  directed  therapy  to  treat
early stage CTCL. We completed the study with approximately 35 CTCL centers across the U.S. participating in this trial. The
Phase  3  protocol  was  a  highly  powered,  double-blind,  randomized,  placebo-controlled,  multicenter  trial  that  enrolled  169
subjects  (166  evaluable).  The  trial  consisted  of  three  treatment  cycles,  each  of  eight  weeks  duration.  Treatments  were
administered twice weekly for the first six weeks and treatment response was determined at the end of the eighth week. In the
first treatment cycle, approximately 66% of subjects received HyBryte™ and 33% received placebo treatment of their index
lesions.  In  the  second  cycle,  all  subjects  received  HyBryte™  treatment  of  their  index  lesions,  and  in  the  third  cycle,  all
subjects received HyBryte™ treatment of all of their lesions. The majority of subjects enrolled elected to continue into the third
optional, open-label cycle of the study. Subjects were followed for an additional six months after their last evaluation visit. The
primary efficacy endpoint was assessed on the percentage of patients in each of the two treatment groups (i.e., HyBryte™
and  placebo)  achieving  a  partial  or  complete  response  of  the  treated  lesions,  defined  as  a  ≥  50%  reduction  in  the  total
Composite  Assessment  of  Index  Lesion  Disease  Severity  (“CAILS”)  score  for  three  index  lesions  at  the  Cycle  1  evaluation
visit  (Week  8)  compared  to  the  total  CAILS  score  at  baseline.  Secondary  endpoints  for  the  trial  included  the  duration  of
responses, the extent of the regression of the tumors, and the safety of the treatment. We continue to work closely with the
Cutaneous Lymphoma Foundation, as well as the National Organization for Rare Disorders.

Positive primary endpoint analysis for the Phase 3 study for HyBryte™ was completed in March 2020. The study enrolled 169
patients (166 evaluable) randomized 2:1 to receive either HyBryte™ (116 patients) or placebo (50 patients) and demonstrated
a statistically significant treatment response (p=0.04) in the CAILS primary endpoint assessment at 8 weeks for Cycle 1. A
total of 16% of the patients receiving HyBryte™ achieved at least a 50% reduction in their index lesions compared to only 4%
of patients in the placebo group at 8 weeks. HyBryte™ treatment in the first cycle was safe and well tolerated.

Analysis of the second open-label treatment cycle (Cycle 2) was completed in April 2020, showing that continued treatment
with  HyBryte™  twice  weekly  for  an  additional  6  weeks  (12  weeks  total)  increased  the  positive  response  rate  to  40%
(p<0.0001  compared  to  placebo  and  p<0.0001  compared  to  6-weeks  treatment).  After  the  subsequent  additional  6-week
treatment,  the  response  rate  in  patients  receiving  a  total  of  12  weeks  treatment  increased  two  and  a  half-fold.  Treatment
responses were assessed at Week 8 (after 6 weeks of treatment) and at Week 16 (after 12 weeks of treatment). A positive
response was defined as an improvement of at least 50% in the CAILS score for the three index lesions evaluated in both
Cycles 1 and 2. The data continued to indicate that HyBryte™ was safe and well tolerated.

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Analysis of the optional third open-label treatment cycle (Cycle 3) was completed in October 2020. Cycle 3 was focused on
safety  and  all  patients  could  elect  to  receive  HyBryte™  treatment  of  all  their  lesions  for  an  additional  6  weeks  or  up  to  18
weeks  in  total.  Of  note,  66%  of  patients  elected  to  continue  with  this  optional  safety  cycle  of  the  study.  Of  the  subset  of
patients that received HyBryte™ throughout all three cycles of treatment (18 weeks), 49% of them demonstrated a treatment
response  (p=0.046  vs.  patients  completing  12  weeks  of  HyBryte™  treatment  in  Cycle  2;  p<0.0001  vs.  patients  receiving
placebo  in  Cycle  1).  Moreover,  in  a  subset  of  patients  evaluated  in  this  cycle,  it  was  demonstrated  that  HyBryte™  is  not
systemically  available,  consistent  with  the  general  safety  of  this  topical  product  observed  to  date.  At  the  end  of  Cycle  3,
HyBryte™ continued to be well tolerated despite extended and increased use of the product to treat multiple lesions.

In addition, continued analysis of results from the protocol mandated efficacy cycles (Cycles 1 and 2) of the study revealed
that 12 weeks of treatment (Cycle 2) with HyBryte™ is equally effective on both patch (response 37%, p=0.0009) and plaque
(response  42%,  p<0.0001)  lesions  when  compared  to  Cycle  1  placebo  lesion  responses,  further  demonstrating  the  unique
benefits of the more deeply penetrating visible light activation of hypericin.

HyBryte™ has received Orphan Drug designation as well as Fast Track designation from the FDA. The Orphan Drug Act is
intended to assist and encourage companies to develop safe and effective therapies for the treatment of rare diseases and
disorders.  In  addition  to  providing  a  seven-year  term  of  market  exclusivity  for  HyBryte™  upon  final  FDA  approval,  Orphan
Drug  designation  also  positions  us  to  be  able  to  leverage  a  wide  range  of  financial  and  regulatory  benefits,  including
government grants for conducting clinical trials, waiver of FDA user fees for the potential submission of a NDA for HyBryte™,
and certain tax credits. In addition, Fast Track is a designation that the FDA reserves for a drug intended to treat a serious or
life-threatening condition and one that demonstrates the potential to address an unmet medical need for the condition. Fast
Track  designation  is  designed  to  facilitate  the  development  and  expedite  the  review  of  new  drugs.  For  instance,  we  were
eligible to submit a NDA for HyBryte™ on a rolling basis, permitting the FDA to review sections of the NDA prior to receiving
the complete submission. Additionally, NDAs for Fast Track development programs ordinarily will be eligible for priority review.
HyBryte™  for  the  treatment  of  CTCL  also  was  granted  Orphan  Drug  designation  from  the  EMA  Committee  for  Orphan
Medical  Products  and  Promising  Innovative  Medicine  (“PIM”)  designation  from  the  MHRA,  as  well  as  Innovation  Passport
under the Innovative Licensing and Access Pathway (“ILAP”) in the UK.

During January 2021, we signed an exclusive Supply, Distribution and Services Agreement with The Daavlin Distributing Co.
(“Daavlin”), securing long-term supply and distribution of a commercially ready light device, which is an integral component of
the  regulatory  and  commercial  strategy  for  HyBryte™  for  the  treatment  of  CTCL.  Pursuant  to  the  agreement,  Daavlin  will
exclusively  manufacture  the  proprietary  light  device  for  use  with  HyBryte™  for  the  treatment  of  CTCL.  Upon  approval  of
HyBryte™ by the FDA, we will promote HyBryte™ and the companion light device, and facilitate the direct purchase of the
device from Daavlin. Daavlin will exclusively distribute and sell the HyBryte™ light device to us, physicians and patients.

In April 2021, the FDA conditionally accepted HyBryte™ as the proposed brand name for SGX301 or synthetic hypericin, in
the treatment of early stage CTCL. The name HyBryte™ was developed in compliance with the FDA’s Guidance for Industry,
Contents  of  a  Complete  Submission  for  the  Evaluation  of  Proprietary  Names.  The  FDA’s  conditional  approval  validates
HyBryte™ as a proprietary name that is consistent with the FDA’s goal of preventing medication errors and potential harm to
the  public  by  ensuring  that  only  appropriate  proprietary  names  are  approved  for  use.  Final  approval  of  the  HyBryte™
proprietary name is conditioned on FDA approval of the product candidate, SGX301.

In May 2021, HyBryte™ was awarded an "Innovation Passport" for the treatment of early stage CTCL in adults under the UK’s
ILAP. The decision to award the Innovation Passport to the HyBryte™ program was made by the Innovative Licensing and
Access  Pathway  Steering  Group,  which  is  comprised  of  representatives  from  MHRA,  the  National  Institute  for  Health  and
Care  Excellence  (“NICE”),  and  the  Scottish  Medicines  Consortium  (“SMC”).  ILAP  was  launched  at  the  start  of  2021  to
accelerate  the  development  and  access  to  promising  medicines,  thereby  facilitating  patient  access  to  new  medicines.  The
pathway,  part  of  the  UK’s  plan  to  attract  life  sciences  development  in  the  post-Brexit  era,  features  enhanced  input  and
interactions with the MHRA, NICE, and SMC. The innovation passport designation is the first step in the ILAP process and
triggers the MHRA and its partner agencies to create a target development profile to chart out a roadmap for regulatory and
development milestones with the goal of early patient access in the UK. Other benefits of ILAP include a 150-day accelerated
assessment, rolling review and a continuous benefit risk assessment.

As a result of discussions with the FDA regarding the HyBryte™ NDA submission and due to disruptions caused by the global
COVID-19  pandemic  resulting  in  delays  by  the  commercial  active  pharmaceutical  ingredient  (“API”)  contract  manufacturer
affecting the timing of availability of the pre-requisite amount of accrued stability data required to file the NDA,

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we filed the NDA with the FDA in December of 2022. We did not pursue a rolling NDA submission, so that we could provide
additional supportive data in the NDA filing.

In  June  2021,  we  received  a  Paediatric  Investigation  Plan  (“PIP”)  waiver  from  the  EMA  for  HyBryte™.  As  part  of  the
regulatory process for the registration of new medicines with the EMA, pharmaceutical companies are required to provide a
PIP outlining their strategies for investigation of the new medicinal products in the pediatric population. In some instances, a
waiver negating the need for a PIP for certain conditions may be granted by the EMA when development of a medicine for
use in children is not feasible or appropriate, as is the case for HyBryte™ in CTCL which is extremely rare in children.

In September 2021, we were granted orphan drug designation for the active ingredient hypericin for the treatment of T-cell
lymphoma, extending the target population beyond CTCL as previously granted by the FDA.

In  July  2022,  the  results  of  our  successful  Phase  3  FLASH  study  evaluating  HyBryte™  for  the  treatment  of  CTCL  were
published in the Journal of the American Medical Association (JAMA) Dermatology.

In July 2022, we received agreement from the FDA on an initial pediatric study plan (“iPSP”) for HyBryte™ for the treatment of
CTCL. The agreed iPSP stipulates that we intend to request a full waiver of pediatric studies upon submission of the NDA.
Agreement with FDA on an iPSP is one of the regulatory requirements that must be met prior to submitting a NDA.

In  September  2022,  the  FDA  awarded  an  Orphan  Products  Development  grant  to  support  the  evaluation  of  HyBryte™  for
expanded  treatment  in  patients  with  early-stage  CTCL.  The  grant,  totaling  $2.6  million  over  four  years,  was  awarded  to  a
prestigious academic institution that was a leading enroller in the published positive Phase 3 FLASH study in the treatment of
early stage CTCL.

In December 2022, we submitted the HyBryte™ NDA for the treatment of CTCL with the FDA.

In  February  2023,  we  received  a  RTF  letter  from  the  FDA  for  the  HyBryte™  NDA.  Upon  preliminary  review,  the  FDA
determined that the NDA was not sufficiently complete to permit substantive review.

In April 2023, the United States Adopted Names (“USAN”) Council approved the use of the nonproprietary name of “hypericin
sodium” for the novel active ingredient in both HyBryte™ (research name SGX301) for the treatment of CTCL and SGX302
for the treatment of mild-to-moderate psoriasis.

In April 2023, we had a Type A meeting with the FDA to clarify and respond to the issues identified in the RTF letter received
from the FDA and to seek additional guidance concerning information that the FDA would require for a resubmitted NDA to be
deemed acceptable to file, in order to advance HyBryte™ towards marketing approval and U.S. commercialization. In order to
accept an NDA filing for HyBryte™, the FDA is requiring positive results from a second, Phase 3 pivotal study in addition to
the  Phase  3,  randomized,  double-blind,  placebo-controlled  FLASH  study  previously  conducted  in  this  orphan  indication.
Based on this feedback, we have decided to collaboratively engage in discussions with the FDA in order to define the protocol
and evaluate the feasibility of conducting the additional clinical trial.

In May 2023, we were granted a follow-on Type A meeting with the FDA to initiate formal discussions regarding the protocol
design  of  a  second,  Phase  3  pivotal  study  evaluating  HyBryte™  in  the  treatment  of  CTCL  in  support  of  potential  FDA
marketing approval. These protocol discussions with the FDA remain ongoing. We will provide further update once final FDA
clarity is obtained. Additionally, we are currently also evaluating the potential for HyBryte™ marketing approval in Europe.

In  August  2023,  patient  enrollment  was  opened  for  the  investigator-initiated  study  (“IIS”).  IIS  is  supported  by  an  Orphan
Products Development grant of $2.6 million over four years awarded by the FDA to a prestigious academic institution that was
a leading enroller in the published positive Phase 3 FLASH study in the treatment of early stage CTCL. The IIS will evaluate
the expanded treatment, including up to 12 months of treatment, with HyBryte™ in patients with early-stage CTCL.

We  estimate  the  potential  worldwide  market  for  HyBryte™  is  in  excess  of  $250  million  for  the  treatment  of  CTCL.  This
potential  market  information  is  a  forward-looking  statement,  and  investors  are  urged  not  to  place  undue  reliance  on  this
statement. While we have determined this potential market size based on assumptions that we believe are reasonable, there
are a number of factors that could cause our expectations to change or not be realized.

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Cutaneous T-Cell Lymphoma

CTCL is a class of non-Hodgkin’s lymphoma (“NHL”), a type of cancer of the white blood cells that are an integral part of the
immune system. Unlike most NHLs, which generally involve B-cell lymphocytes (involved in producing antibodies), CTCL is
caused  by  an  expansion  of  malignant  T-cell  lymphocytes  (involved  in  cell-mediated  immunity)  normally  programmed  to
migrate to the skin. These skin-trafficking malignant T-cells migrate to the skin, causing various lesions to appear that may
change shape as the disease progresses, typically beginning as a rash and eventually forming plaques and tumors. Mycosis
fungoides  (“MF”)  is  the  most  common  form  of  CTCL.  It  generally  presents  with  skin  involvement  only,  manifested  as  scaly,
erythematous patches. Advanced disease with diffuse lymph node and visceral organ involvement is usually associated with a
poorer response rate to standard therapies. A relatively uncommon sub-group of CTCL patients present with extensive skin
involvement and circulating malignant cerebriform T-cells, referred to as Sézary syndrome. These patients have substantially
graver prognoses (expected five-year survival rate of 24%), than those with MF (expected five-year survival rate of 88%).

CTCL mortality is related to stage of disease, with median survival generally ranging from about 12 years in the early stages
to only 2.5 years when the disease has advanced. There is currently no FDA-approved drug for front-line treatment of early
stage  CTCL.  Treatment  of  early-stage  disease  generally  involves  skin-directed  therapies.  One  of  the  most  common
unapproved therapies used for early-stage disease is oral 5 or 8-methoxypsoralen (“Psoralen”) given with ultraviolet A (“UVA”)
light,  referred  to  as  PUVA,  which  is  approved  for  dermatological  conditions  such  as  disabling  psoriasis  not  adequately
responsive  to  other  forms  of  therapy,  idiopathic  vitiligo  and  skin  manifestations  of  CTCL  in  persons  who  have  not  been
responsive  to  other  forms  of  treatment.  Psoralen  is  a  mutagenic  chemical  that  interferes  with  DNA  causing  mutations  and
other malignancies. Moreover, UVA is a carcinogenic light source that when combined with the Psoralen, results in serious
adverse effects including secondary skin cancers; therefore, the FDA requires a Black Box warning for PUVA.

CTCL constitutes a rare group of NHLs, occurring in about 4% of the approximate 500,000 individuals living with NHL. We
estimate, based upon review of historic published studies and reports and an interpolation of data on the incidence of CTCL,
that it affects over 20,000 individuals in the U.S., with approximately 2,800 new cases seen annually.

SGX302 – for Treating Mild-to-Moderate Psoriasis

SGX302 (synthetic hypericin) is a potent photosensitizer that is topically applied to skin lesions and taken up by cutaneous T-
cells. With subsequent activation by safe, visible light, T-cell apoptosis is induced, addressing the dysregulated T-cells found
in psoriasis lesions. Other PDTs have shown efficacy in psoriasis with a similar apoptotic mechanism, albeit using UV light
associated  with  more  severe  potential  long-term  toxicities.  The  use  of  visible  light  in  the  red-yellow  spectrum  has  the
advantage of deeper penetration into the skin (much more than UV light) potentially treating deeper skin disease and thicker
plaques  and  lesions,  similar  to  what  was  observed  in  the  positive  Phase  3  FLASH  study  in  CTCL.  Further,  this  treatment
approach  avoids  the  risk  of  secondary  malignancies  (including  melanoma)  inherent  with  both  the  frequently  used  DNA-
damaging drugs and other phototherapies that are dependent on UVA or UVB exposure. The use of SGX302 coupled with
safe,  visible  light  also  avoids  the  risk  of  serious  infections  and  cancer  associated  with  the  systemic  immunosuppressive
treatments used in psoriasis.

In September 2021, following the validation of synthetic hypericin’s biologic activity in the positive Phase 3 FLASH study in
CTCL,  as  well  as  positive  proof-of-concept  demonstrated  in  a  small  Phase  1/2  pilot  study  in  mild-to-moderate  psoriasis
patients, we decided to expand this novel therapy into a Phase 2a clinical trial in mild-to-moderate psoriasis.

In June 2022, we received FDA IND clearance for our Phase 2a clinical trial (protocol number HPN-PSR-01) titled, "Phase 2
Study Evaluating SGX302 in the Treatment of Mild-to-Moderate Psoriasis." In December 2022, we initiated patient enrollment
for  the  Phase  2a  study  (protocol  number  HPN-PSR-01)  evaluating  SGX302  in  the  treatment  of  mild-to-moderate  psoriasis.
The Phase 2a clinical trial (protocol number HPN-PSR-01) will target enrollment of up to 42 patients ages 18 years or older
with mild to moderate, stable psoriasis covering 2 to 30% of the body. In both Parts A and B, all patients will apply the study
drug  twice  per  week  and  activate  the  drug  with  visible  light  24  ±  6  hours  later  using  the  supplied  visible  light  devices  and
according to the manufacturer's instructions. Patients will undergo treatments for a total of 18 weeks and, on completion, will
be followed for a four-week follow-up period in which patients will not receive other psoriasis treatments. In Part A, five to ten
patients will be assigned open-label SGX302 (0.25% hypericin) at the time of enrollment. Once the tolerability and response
to SGX302 has been established, Part B of the protocol will commence. In Part B, patients will be randomized to double-blind
treatment groups at a ratio 1:1 of active drug to placebo ointment. Active dermatologic

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assessment of treated lesions for adverse events will be performed immediately before and during light treatments. Patients
will be assessed for overall disease status through four weeks of follow-up. Efficacy endpoints will include the extent of lesion
clearance and patient reported quality of life indices. Routine safety data also will be collected.

In October 2022, we announced the formation of a Medical Advisory Board to provide medical/clinical strategic guidance to
advance the Phase 2a clinical development of SGX302 for the treatment of mild-to-moderate psoriasis.

In  July  2023,  we  expanded  the  Phase  2a  trial  of  SGX302  after  demonstration  of  biological  effect  in  the  initial  five  subjects
(Cohort 1). The study is expected to enroll at least an additional ten subjects, exploring the use of SGX302 in the standard of
care psoriasis setting, prior to undertaking the larger phase of the study.

In January 2024, positive preliminary results of clinical success were demonstrated in the Cohort 2 subjects enrolled in the
ongoing Phase 2a study. In the four evaluable patients from Cohort 2 (one patient withdrew early in the treatment course for
personal  reasons  unrelated  to  the  study),  two  reached  a  disease  status  of  “Almost  Clear”  represented  by  an  Investigator
Global  Assessment  score  of  1,  which  is  considered  the  standard  clinical  measure  for  treatment  success  in  psoriasis.  In
addition,  the  Psoriasis  Activity  and  Severity  Index  score,  another  well-characterized  measure  of  treatment  success,  for
patients in Cohort 2 had a mean drop of approximately 50% over the 18-week treatment. SGX302 therapy was well tolerated
by all patients with no drug related adverse events identified.

We  estimate  the  potential  worldwide  market  for  SGX302  is  in  excess  of  $1  billion  for  the  treatment  of  mild-to-moderate
psoriasis.  This  potential  market  information  is  a  forward-looking  statement,  and  investors  are  urged  not  to  place  undue
reliance on this statement. While we have determined this potential market size based on assumptions that we believe are
reasonable, there are a number of factors that could cause our expectations to change or not be realized.

Psoriasis

Psoriasis  is  a  chronic,  non-communicable,  itchy  and  often  painful  inflammatory  skin  condition  for  which  there  is  no
cure. Psoriasis has a significantly detrimental impact on patients' quality of life, and is associated with cardiovascular, arthritic,
and metabolic diseases, as well as psychological conditions such as anxiety, depression and suicide. Many factors contribute
to  development  of  psoriasis  including  both  genetic  and  environmental  factors  (e.g.,  skin  trauma,  infections,  and
medications).  The  lesions  develop  because  of  rapidly  proliferating  skin  cells,  driven  by  autoimmune  T-cell  mediated
inflammation. Of the various types of psoriasis, plaque psoriasis is the most common and is characterized by dry, red raised
plaques  that  are  covered  by  silvery-white  scales  occurring  most  commonly  on  the  elbows,  knees,  scalp,  and  lower  back.
Approximately 80% of patients have mild-to-moderate disease. Mild psoriasis is generally characterized by the involvement of
less  than  3%  of  the  body  surface  area  (“BSA”),  while  moderate  psoriasis  will  typically  involve  3-10%  BSA  and  severe
psoriasis  greater  than  10%  BSA.  Between  20%  and  30%  of  individuals  with  psoriasis  will  go  on  to  develop  chronic,
inflammatory  arthritis  (psoriatic  arthritis)  that  can  lead  to  joint  deformations  and  disability.  Studies  have  also  associated
psoriasis, and particularly severe psoriasis, with an increased relative risk of lymphoma, particularly CTCL. Although psoriasis
can occur at any age, most patients present with the condition before age 35.

Treatment of psoriasis is based on its severity at the time of presentation with the goal of controlling symptoms. It varies from
topical options including PDT to reduce pain and itching, and potentially reduce the inflammation driving plaque formation, to
topical
systemic 
photo/photodynamic therapy such as UV A and B, carry a risk of increased skin cancer.

for  more  severe  disease.  Most  common  systemic 

treatments  and  even  current 

treatments 

Psoriasis  is  the  most  common  immune-mediated  inflammatory  skin  disease.  According  to  the  World  Health  Organization
(“WHO”) Global Report on Psoriasis 2016, the prevalence of psoriasis is between 1.5% and 5% in most developed countries,
with some suggestions of incidence increasing with time. It is estimated, based upon review of historic published studies and
reports and an interpolation of data that psoriasis affects 3% of the U.S. population or more than 7.5 million people. Current
estimates have as many as 60-125 million people worldwide living with the condition. The global psoriasis treatment market
was valued at approximately $15 billion in 2020 and is projected to reach as much as $40 billion by 2027.

Dusquetide

Dusquetide  (research  name:  SGX94)  is  an  IDR  that  regulates  the  innate  immune  system  to  simultaneously  reduce
inflammation, eliminate infection and enhance tissue healing. Dusquetide is based on a new class of short, synthetic peptides
known as IDRs. It has a novel mechanism of action in that it modulates the body’s reaction to both injury and

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infection and is both simultaneously anti-inflammatory and anti-infective. IDRs have no direct antibiotic activity but modulate
host  responses,  increasing  survival  after  infections  with  a  broad  range  of  bacterial  Gram-negative  and  Gram-positive
pathogens  including  both  antibiotic  sensitive  and  resistant  strains,  as  well  as  accelerating  resolution  of  tissue  damage
following  exposure  to  a  variety  of  agents  including  bacterial  pathogens,  trauma  and  chemo-  or  radiation-therapy.  IDRs
represent  a  novel  approach  to  the  control  of  infection  and  tissue  damage  via  highly  selective  binding  to  an  intracellular
adaptor protein, sequestosome-1, also known as p62, which has a pivotal function in signal transduction during activation and
control  of  the  innate  defense  system.  Preclinical  data  indicate  that  IDRs  may  be  active  in  models  of  a  wide  range  of
therapeutic  indications  including  life-threatening  bacterial  infections  as  well  as  the  severe  side-effects  of  chemo-  and
radiation-therapy. Additionally, due to selective binding to p62, dusquetide may have potential anti-tumor action.

Dusquetide  has  demonstrated  efficacy  in  numerous  animal  disease  models  including  mucositis,  oncology,  colitis,  skin
infection and other bacterial infections and has been evaluated in a double-blind, placebo-controlled Phase 1 clinical trial in 84
healthy volunteers with both single ascending dose and multiple ascending dose components. Dusquetide was shown to have
a good safety profile and be well-tolerated in all dose groups when administered by IV over 7 days and was consistent with
safety results seen in pre-clinical studies. We believe that market opportunities for dusquetide include, but are not limited to,
oral  and  gastrointestinal  mucositis,  oncology  (e.g.,  breast  cancer),  acute  Gram-positive  bacterial  infections  (e.g.,  methicillin
resistant  Staphylococcus  aureus  (“MRSA”)),  acute  Gram-negative  infections  (e.g.,  acinetobacter,  melioidosis),  and  acute
radiation syndrome.

SGX942 – for Treating Oral Mucositis in Head and Neck Cancer

SGX942 is our product candidate containing our IDR technology, dusquetide, targeting the treatment of oral mucositis in head
and neck cancer patients. Oral mucositis in this patient population is an area of unmet medical need where there are currently
no approved drug therapies. Accordingly, we received Fast Track designation for the treatment of oral mucositis as a result of
radiation and/or chemotherapy treatment in head and neck cancer patients from the FDA. In addition, dusquetide has been
granted  PIM  designation  in  the  UK  by  the  MHRA  for  the  treatment  of  SOM  in  head  and  neck  cancer  patients  receiving
chemoradiation therapy.

We  initiated  a  Phase  2  clinical  study  of  SGX942  for  the  treatment  of  oral  mucositis  in  head  and  neck  cancer  patients  in
December  of  2013.  We  completed  enrollment  in  this  trial  and  released  positive  results  in  December  2015.  In  this  Phase  2
proof-of-concept clinical study that enrolled 111 patients, SGX942, at a dose of 1.5 mg/kg, successfully reduced the median
duration of SOM by 50%, from 18 days to 9 days (p=0.099) in all patients and by 67%, from 30 days to 10 days (p=0.040) in
patients receiving the most aggressive chemoradiation therapy for treatment of their head and neck cancer. The p-values met
the  prospectively  defined  statistical  threshold  of  p<0.1  in  the  study  protocol.  A  less  severe  occurrence  of  oral  mucositis,
ulcerative oral mucositis (defined as oral mucositis with a WHO score ≥2 corresponding to the occurrence of overt ulceration
in the mouth), was also monitored during the study. In the patients receiving the most aggressive chemoradiation therapy, the
median  duration  of  oral  mucositis  was  found  to  decrease  from  65  days  in  the  placebo  treated  patients  to  51  days  in  the
patients treated with SGX942 1.5 mg/kg (p=0.099).

In  addition  to  identifying  the  best  dose  of  1.5  mg/kg,  this  study  achieved  all  objectives,  including  increased  incidence  of
“complete response” of tumor at the one month follow-up visit (47% in placebo vs. 63% in SGX942 at 1.5 mg/kg). Decreases
in mortality and decreases in infection rate were also observed with SGX942 treatment, consistent with the preclinical results
observed in animal models. Data from this Phase 2 trial are published in the Journal of Biotechnology.

SGX942 was found to be generally safe and well tolerated, consistent with the safety profile observed in the prior Phase 1
study  conducted  in  84  healthy  volunteers.  The  long-term  (12  month)  follow-up  data  was  consistent  with  the  preliminary
positive  safety  and  efficacy  findings.  While  the  placebo  population  experienced  the  expected  12-month  survival  rate  of
approximately  80%,  as  defined  in  the  Surveillance,  Epidemiology,  and  End  Results  statistics  1975-2012  from  the  National
Cancer  Institute,  the  SGX942  1.5  mg/kg  treatment  group  reported  a  12-month  survival  rate  of  93%  (7%  mortality  in  the
SGX942  1.5  mg/kg  group  compared  to  19%  in  the  placebo  group).  Similarly,  tumor  resolution  (complete  response)  at
12  months  was  better  in  the  SGX942  1.5  mg/kg  treatment  group  relative  to  the  placebo  population  (80%  in  the  1.5  mg/kg
group  compared  to  74%  in  the  placebo  group).  The  long-term  follow-up  results  from  the  Phase  2  study  are  published  in
Biotechnology Reports.

In  September  2016,  we  and  SciClone  Pharmaceuticals,  Inc.  (“SciClone”)  entered  into  an  exclusive  license  agreement,
pursuant to which we granted rights to SciClone to develop, promote, market, distribute and sell SGX942 in defined territories.
Under the terms of the license agreement, SciClone will be responsible for all aspects of development, product

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registration and commercialization in the territories, having access to data generated by us. In exchange for exclusive rights,
SciClone  will  pay  us  royalties  on  net  sales,  and  we  will  supply  commercial  drug  product  to  SciClone  on  a  cost-plus  basis,
while maintaining worldwide manufacturing rights.

Based  on  the  positive  and  previously  published  Phase  2  results  (Study  IDR-OM-01),  in  July  2017,  we  initiated  a  Phase  3
clinical  trial  referred  to  as  the  “DOM–INNATE”  (Dusquetide treatment in Oral Mucositis  –  by  modulating  INNATE  immunity)
study. Approximately 50 U.S. and European oncology centers participated in this trial. The Phase 3 protocol (Study IDR-OM-
02) was a highly powered, double-blind, randomized, placebo-controlled, multinational trial that sought to enroll approximately
260 subjects with squamous cell carcinoma of the oral cavity and oropharynx who were scheduled to receive a minimum total
cumulative radiation dose of 55 Gy fractionated as 2.0-2.2 Gy per day with concomitant cisplatin chemotherapy given as a
dose of 80-100 mg/m2  every  third  week.  Subjects  were  randomized  to  receive  either  1.5  mg/kg  SGX942  or  placebo  given
twice a week during and for two weeks following completion of chemoradiation therapy (“CRT”). The primary endpoint for the
study was the median duration of SOM, which was assessed by oral examination at each treatment visit and then through six
weeks following completion of CRT. Oral mucositis is evaluated using the WHO Grading system. SOM is defined as a WHO
Grade of ≥3. Subjects are followed for an additional 12 months after the completion of treatment.

In  April  2019,  the  Paediatric  Committee  of  the  EMA  approved  our  PIP  for  SGX942,  a  prerequisite  for  filing  a  Marketing
Authorization  Application  (“MAA”)  for  any  new  medicinal  product  in  Europe.  The  EMA  also  agreed  that  we  may  defer
conducting  the  PIP  until  successful  completion  of  our  pivotal  Phase  3  clinical  trial  of  SGX942,  which  allowed  us  to  file  the
adult indication MAA prior to completion of the PIP.

In  June  2020,  the  pivotal  Phase  3  DOM–INNATE  study  (Study  IDR-OM-02)  completed  enrollment  of  268  subjects.  In
December 2020, the results of our Phase 3 clinical trial for SGX942 showed that the primary endpoint of median duration of
SOM did not achieve the pre-specified criterion for statistical significance (p≤0.05); although biological activity was observed
with a 56% reduction in the median duration of SOM from 18 days in the placebo group to 8 days in the SGX942 treatment
group. Despite this clinically meaningful improvement, the variability in the distribution of the data yielded a p-value that was
not statistically significant. Other secondary endpoints supported the biological activity of dusquetide, including a statistically
significant 50% reduction in the median duration of SOM in the per-protocol population, which decreased from 18 days in the
placebo  group  to  9  days  in  the  SGX942  treatment  group  (p=0.049),  consistent  with  the  findings  in  the  Phase  2  trial  (Study
IDR-OM-01). Similarly, incidence of SOM also followed this biological trend as seen in the Phase 2 study, decreasing by 16%
in the SGX942 treatment group relative to the placebo group in the per-protocol population. The per-protocol population was
defined as the population receiving a minimum of 55 Gy radiation and at least 10 doses of study drug (placebo or SGX942)
throughout the intended treatment period, with no major protocol deviations (e.g. breaks in study drug administration longer
than 8 days between successive doses).

Following analysis of the full dataset, including the 12-month long-term follow-up safety data in late 2021, we held a meeting
with  the  MHRA  to  review  the  study  results  and  to  obtain  further  clarity  on  the  future  of  the  oral  mucositis  development
program. The meeting was informative with the outcome being that based on the SGX942 biologic activity observed and the
consistency in response between the Phase 2 and Phase 3 trials, the Phase 3 DOM-INNATE study could serve as the first of
two  Phase  3  studies  required  to  support  potential  marketing  authorization,  assuming  the  second  Phase  3  clinical  trial
achieves the required level of statistical significance in its primary endpoint. With the benefit of a robust preclinical and clinical
data package for SGX942, we now will analyze the data to design a second Phase 3 study and will look to identify a potential
partner(s) to continue this development program.

In  January  2022,  dusquetide  proved  effective  at  reducing  tumor  size  in  nonclinical  xenograft  models.  Recent  studies,
recapitulating  results  from  previously  published  studies,  have  confirmed  the  efficacy  of  dusquetide  as  a  stand-alone  and
combination anti-tumor therapy, with radiation, chemotherapy and targeted therapy, in the context of the MCF-7 breast cancer
cell line. Of note, these results are consistent with a potential direct anti-tumor effect identified with SGX942 and is another
important consideration in the oral mucositis treatment space.

In June 2022, an article was published describing the binding of our IDR, dusquetide, to the p62 protein. Dusquetide binds to
p62 or SQSTM-1, a scaffold protein implicated in a number of intracellular signaling networks implicated in tumor cell survival,
including autophagy. This publication elaborates on the direct interaction of dusquetide with p62, as well as some of the direct
downstream  consequences  of  that  interaction,  consistent  with  its  observed  anti-infective,  anti-tumor  and  anti-inflammatory
activities.  This  information  advances  the  understanding  of  dusquetide's  novel  mechanism  of  action  and  supports  the
development of analogs related to dusquetide.

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We estimate the potential worldwide market for SGX942 is in excess of $500 million for the treatment of oral mucositis. This
potential  market  information  is  a  forward-looking  statement,  and  investors  are  urged  not  to  place  undue  reliance  on  this
statement. While we have determined this potential market size based on assumptions that we believe are reasonable, there
are a number of factors that could cause our expectations to change or not be realized.

Oral Mucositis

Mucositis is the clinical term for damage done to the mucosa by anticancer therapies. It can occur in any mucosal region, but
is most commonly associated with the mouth, followed by the small intestine. We estimate, based upon our review of historic
studies and reports, and an interpolation of data on the incidence of mucositis, that mucositis affects approximately 500,000
people in the U.S. per year and occurs in 40% of patients receiving chemotherapy. Mucositis can be severely debilitating and
can lead to infection, sepsis, the need for parenteral nutrition and narcotic analgesia. The GI damage causes severe diarrhea.
These symptoms can limit the doses and duration of cancer treatment, leading to sub-optimal treatment outcomes.

The mechanisms of mucositis have been extensively studied and have been linked to the interaction of chemotherapy and/or
radiation  therapy  with  the  innate  defense  system.  Bacterial  infection  of  the  ulcerative  lesions  is  regarded  as  a  secondary
consequence of dysregulated local inflammation triggered by therapy-induced cell death, rather than as the primary cause of
the lesions.

We  estimate,  based  upon  our  review  of  historic  studies  and  reports,  and  an  interpolation  of  data  on  the  incidence  of  oral
mucositis, that oral mucositis is a subpopulation of approximately 90,000 patients in the U.S., with a comparable number in
Europe.  Oral  mucositis  almost  always  occurs  in  patients  with  head  and  neck  cancer  treated  with  radiation  therapy  (greater
than 80% incidence of severe mucositis) and is common in patients undergoing high dose chemotherapy and hematopoietic
cell  transplantation,  where  the  incidence  and  severity  of  oral  mucositis  depends  greatly  on  the  nature  of  the  conditioning
regimen used for myeloablation.

SGX945 – for Treating Aphthous Ulcers in Behçet’s Disease

SGX945 is our product candidate containing our IDR technology, dusquetide, targeting the treatment of aphthous Ulcers in
Behçet’s Disease. Behçet’s Disease is an orphan disease and an area of unmet medical need.

In  November  2023,  the  FDA  cleared  the  IND  application  for  a  Phase  2a  clinical  trial  entitled,  “Pilot  Study  of  SGX945
(Dusquetide)  in  the  Treatment  of  Aphthous  Ulcers  in  Behçet’s  Disease.”  The  study  is  designed  to  evaluate  the  safety  and
potential efficacy of SGX945 (dusquetide) in the resolution of aphthous flares in Behçet’s Disease and is expected to begin
patient enrollment in the second half of 2024.

In January 2024, SGX945 received Fast Track designation for the treatment of oral lesions of Behçet’s Disease from the FDA.

In February 2024, we announced the formation of a Medical Advisory Board to provide medical/clinical strategic guidance to
advance the clinical development of SGX945 for the treatment of Behçet's Disease.

We estimate the potential worldwide market for SGX945 is in excess of $200 million for the treatment of aphthous ulcers in
Behçet’s  Disease.  This  potential  market  information  is  a  forward-looking  statement,  and  investors  are  urged  not  to  place
undue reliance on this statement. While we have determined this potential market size based on assumptions that we believe
are reasonable, there are a number of factors that could cause our expectations to change or not be realized.

Behçet’s Disease

Behçet’s  Disease  (“BD”)  is  commonly  known  as  an  inflammatory  disorder  of  the  blood  vessels  (vasculitis).  Often  first
diagnosed in young adults, its effects and severity will wax and wane over time. Major signs and symptoms usually include
mouth  sores  (approximately  95%  of  patients),  skin  rashes  and  lesions  (approximately  50%  of  patients),  genital  sores
(approximately  50%  of  patients),  leg  ulcers  (approximately  40%  of  patients)  and  eye  inflammation  (approximately  15%  of
patients). It is a painful disease, directly impacting the patient’s quality of life and ability to productively engage in life activities,
including work.

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BD is thought to be an auto-immune disease with both genetic and environmental factors. It is most common along the “silk
road”  in  the  Middle  East  and  East  Asia,  including  Turkey,  Iran,  Japan  and  China.  There  are  approximately  18,000  known
cases of BD in the U.S. and 80,000 in Europe. There are as many as 1,000,000 people worldwide living with BD.

There is no cure for BD, rather treatments are prescribed to manage symptoms. Treatments may include both maintenance
therapies  and  those  specifically  addressing  mucocutaneous  flares  (e.g.,  mouth  ulcers,  genital  ulcers  and  leg  ulcers).
Corticosteroids  are  generally  applied  topically  to  sores  and  as  eyedrops  and  may  also  be  given  systemically  to  reduce
inflammation.  Although  used  frequently,  they  have  limited  efficacy  over  the  long-term  and  have  significant  side  effects  that
become more concerning with more chronic use. Genital ulcers are often associated with significant genital scarring while leg
ulcers can result in a post-thrombotic syndrome. Other treatments for BD flares involve suppressing the immune system with
drugs (e.g., cyclosporine or cyclophosphamide). These drugs come with a higher risk of infection, liver and kidney problems,
low blood counts and high blood pressure. Finally, anti-inflammatory drugs are also used, including anti-TNF medications. The
only  approved  drug  in  BD  is  apremilast,  which  is  used  as  a  maintenance  therapy  to  prevent  formation  of  oral  ulcers.
Unfortunately, apremilast is associated with both high cost and side effects including diarrhea, nausea, upper respiratory tract
infection and headache.

Public Health Solutions Overview

ThermoVax® – Thermostability Platform Technology

ThermoVax® is a novel method for thermostabilizing vaccines with a variety of adjuvants, resulting in a single vial which can
be reconstituted with water for injection immediately prior to use. One of the adjuvants utilized in ThermoVax®  is  aluminum
salts (known colloquially as “Alum”). Alum is the most widely employed adjuvant technology in the vaccine industry.

The value of ThermoVax® lies in its potential ability to eliminate the need for cold chain production, transportation, and storage
for  Alum-adjuvanted  vaccines.  This  would  relieve  the  high  costs  of  producing  and  maintaining  vaccines  under  refrigerated
conditions.  Based  on  historical  reports  from  WHO  and  other  scientific  reports,  we  believe  that  a  meaningful  proportion  of
vaccine doses globally are wasted due to excursions from required cold chain temperature ranges. This is due to the fact that
many vaccines need to be maintained either between 2 and 8 degrees Celsius (“C”), frozen below -20 degrees C, or frozen
below  -60  degrees  C,  and  even  brief  excursions  from  these  temperature  ranges  usually  necessitate  the  destruction  of  the
product or the initiation of costly stability programs specific for the vaccine lots in question. ThermoVax® has the potential to
facilitate easier storage and distribution of strategic national stockpile vaccines for ricin exposure in emergency settings.

ThermoVax® development, specifically in the context of an Alum adjuvant, was supported pursuant to our $9.4 million NIAID
grant  enabling  development  of  thermo-stable  ricin  (RiVax®)  and  anthrax  vaccines.  Proof-of-concept  preclinical  studies  with
ThermoVax® indicate that it is able to produce stable vaccine formulations using adjuvants, protein immunogens, and other
components  that  ordinarily  would  not  withstand  long  temperature  variations  exceeding  customary  refrigerated  storage
conditions.  These  studies  were  conducted  with  our  Alum-adjuvanted  ricin  toxin  vaccine,  RiVax®  and  our  Alum-adjuvanted
anthrax  vaccine.  Each  vaccine  was  manufactured  under  precise  lyophilization  conditions  using  excipients  that  aid  in
maintaining  native  protein  structure  of  the  key  antigen.  When  RiVax®  was  kept  at  40  degrees  C  (104  degrees  Fahrenheit
(“F”))  for  up  to  one  year,  all  of  the  animals  vaccinated  with  the  lyophilized  RiVax®  vaccine  developed  potent  and  high  titer
neutralizing antibodies. In contrast, animals that were vaccinated with the liquid RiVax® vaccine kept at 40 degrees C did not
develop  neutralizing  antibodies  and  were  not  protected  against  ricin  exposure.  The  ricin  A  chain  is  extremely  sensitive  to
temperature  and  rapidly  loses  the  ability  to  induce  neutralizing  antibodies  when  exposed  to  temperatures  higher  than  8
degrees C. When the anthrax vaccine was kept for up to 16 weeks at 70 degrees C, it was able to develop a potent antibody
response, unlike the liquid formulation kept at the same temperature. Moreover, we also have demonstrated the compatibility
of our thermostabilization technology with other secondary adjuvants such as TLR-4 agonists.

We  also  entered  into  a  collaboration  agreement  with  Axel  Lehrer,  PhD  of  the  Department  of  Tropical  Medicine,  Medical
Microbiology  and  Pharmacology,  John  A.  Burns  School  of  Medicine  (“JABSOM”),  University  of  Hawai’i  at  Manoa  (“UH
Manoa”)  and  Hawaii  Biotech,  Inc.  (“HBI”)  to  develop  a  heat  stable  subunit  Ebola  vaccine.  Dr.  Lehrer,  a  co-inventor  of  the
Ebola  vaccine  with  HBI,  has  shown  proof  of  concept  efficacy  with  subunit  Ebola  vaccines  in  non-human  primates  (“NHP”).
The most advanced Ebola vaccines involve the use of vesicular stomatitis virus and adenovirus vectors – live, viral vectors
which  complicate  the  manufacturing,  stability  and  storage  requirements.  Dr.  Lehrer’s  vaccine  candidate  is  based  on  highly
purified  recombinant  protein  antigens,  circumventing  many  of  these  manufacturing  difficulties.  Dr.  Lehrer  and  HBI  have
developed a robust manufacturing process for the required proteins. Application of ThermoVax® may allow for a product

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that  can  avoid  the  need  for  cold  chain  distribution  and  storage,  yielding  a  vaccine  ideal  for  use  in  both  the  developed  and
developing world. This agreement has expired in accordance with its terms.

In December 2010, we executed a worldwide exclusive license agreement with the University of Colorado (“UC”) for certain
patents  relating  to  ThermoVax®  in  all  fields  of  use.  In  April  2018,  the  UC  delivered  a  notice  of  termination  of  our  license
agreement based upon our failure to achieve one of the development milestones: initiation of the Phase 1 clinical trial of the
heat  stabilization  technology  by  March  31,  2018.  After  negotiating  with  the  UC,  we  and  the  UC  agreed  to  extend  the
termination  date  to  October  31,  2018  in  order  to  allow  us  time  to  agree  upon  a  potential  agreement  that  would  allow  us  to
keep  the  rights  to,  and  to  continue  to  develop,  the  heat  stabilization  technology  or  a  product  candidate  containing  the  heat
stabilization technology in our field of use.

During  September  2017,  we  were  awarded  funding  of  approximately  $700,000  over  five  years  under  a  NIAID  Research
Project  (R01)  grant  awarded  to  UH  Manoa  for  the  development  of  a  trivalent  thermostabilized  filovirus  vaccine  (including
protection against Zaire ebolavirus, Sudan ebolavirus and Marburg Marburgvirus). Previous collaborations demonstrated the
feasibility of developing a heat stable subunit Ebola vaccine. Under the terms of the subaward, we will continue to support
vaccine  formulation  development  with  our  proprietary  vaccine  thermostabilization  technology,  ThermoVax®.  Ultimately,  the
objective is to produce a thermostable trivalent filovirus vaccine for protection against Ebola and related diseases, allowing
worldwide  distribution  without  the  need  for  cold  storage.  Based  on  current  U.S.  government  needs,  efforts  have  been
expanded to focus on a monovalent or bivalent vaccine to specifically address Marburg marburgvirus.

In October 2018, in a series of related transactions, (a) we and the UC agreed to terminate the original license agreement,
(b)  the  UC  and  VitriVax,  Inc.  (“VitriVax”)  executed  a  worldwide  exclusive  license  agreement  for  the  heat  stabilization
technology  for  all  fields  of  use,  and  (c)  we  and  VitriVax  executed  a  worldwide  exclusive  sublicense  agreement,  which  was
amended and restated in October 2020, for the heat stabilization technology for use in the fields of ricin and Ebola vaccines.
We  paid  a  $100,000  sublicense  fee  on  the  effective  date  of  the  sublicense  agreement.  Under  the  amended  sublicense
agreement to maintain the sublicense we are obliged to pay a minimum annual royalty of $20,000 until first commercial sale
of a sublicensed product, upon which point, we shall pay an earned royalty of 2% of net sales subject to a minimum royalty of
$50,000 each year. We are also required to pay royalty on any sub-sublicense income based on a declining percentage of all
sub-sublicense income calculated within the contractual period until reaching a minimum of 15% after two years. In addition,
we  are  required  to  pay  VitriVax  milestone  fees  of:  (a)  $25,000  upon  initiation  of  a  Phase  2  clinical  trial  of  the  sublicensed
product,  (b)  $100,000  upon  initiation  of  a  Phase  3  clinical  trial  of  the  sublicensed  product,  (c)  $100,000  upon  regulatory
approval  of  a  sublicensed  product,  and  (d)  $1  million  upon  achieving  $10  million  in  aggregate  net  sales  of  a  sublicensed
product in the U.S. or equivalent. To date none of these milestones have been met.

In  March  2020,  we  entered  into  a  research  collaboration  with  Axel  Lehrer,  PhD  of  the  Department  of  Tropical  Medicine,
Medical Microbiology and Pharmacology, JABSOM, UH Manoa to further expand the filovirus collaboration to investigation of
potential  coronavirus  vaccines,  including  for  SARS-CoV-2  (causing  COVID-19).  This  research  collaboration  will  utilize  the
technology platform developed in the search for filovirus vaccines and will use well-defined surface glycoprotein(s) from one
or more coronaviruses, which are expected to be protective for COVID-19.

During  April  2020,  we  obtained  an  exclusive  worldwide  license  for  CoVaccine  HT™,  a  novel  vaccine  adjuvant,  from  SERB
Pharmaceuticals (formerly BTG Specialty Pharmaceuticals, a division of Boston Scientific Corporation) (“SERB”), for the fields
of  coronavirus  infection  (including  SARS-CoV-2,  the  cause  of  COVID-19),  and  pandemic  flu.  CoVaccine  HT™  is  a  novel
adjuvant, which has been shown to enhance both cell-mediated and antibody-mediated immunity. We and our collaborators,
including UH Manoa and Dr. Axel Lehrer, have successfully demonstrated the utility of CoVaccine HT™ in the development of
our  heat  stable  filovirus  vaccine  program,  with  vaccine  candidates  against  Ebola  and  Marburg  virus  disease.  Given  this
previous success, CoVaccine HT™ will potentially be an important component of our vaccine technology platform currently
being assessed for use against coronaviruses including SARS-CoV-2, the cause of COVID-19. The license agreement was
executed between us and SERB, which owns the CoVaccine HT™ intellectual property.

In September 2020, the Journal of Pharmaceutical Sciences published a scientific article detailing the thermostabilization of
the filovirus GP proteins and key assays describing their stability.

During  October  2020,  Frontiers  in  Immunology  published  a  scientific  article  describing  CiVax™,  a  prototype  COVID-19
vaccine, using the novel CoVaccine HT™ adjuvant and demonstrating significant immunogenicity, including strong total and
neutralizing antibody responses, with a balanced Th1 response, as well as enhancement of cell mediated immunity. These
are all considered to be critical attributes of a potential COVID-19 vaccine.

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In  December  2020,  NIAID  awarded  us  a  Direct  to  Phase  II  Small  Business  Innovation  Research  (“SBIR”)  grant  of
approximately $1.5 million to support manufacture, formulation (including thermostabilization) and characterization of COVID-
19 and Ebola Virus Disease (“EVD”) vaccine candidates in conjunction with the CoVaccine HT™ adjuvant. This award also is
supporting  immune  characterization  of  this  novel,  emulsified  adjuvant  that  has  unique  potency  and  compatibility  with
lyophilization strategies to enable thermostabilization of subunit vaccines.

During  August  2021,  positive  data  demonstrated  the  efficacy  of  multiple  filovirus  vaccine  candidates  in  NHP,  including
thermostabilized multivalent vaccines in a single vial platform presentation. Collaborators at UH Manoa describe the potent
efficacy  of  vaccine  candidates  protecting  against  three  life-threatening  filoviruses,  Zaire  ebolavirus,  Sudan  ebolavirus  and
Marburg Marburgvirus in an article titled "Recombinant Protein Filovirus Vaccines Protect Cynomolgus Macaques from Ebola,
Sudan, and Marburg Viruses", published in Frontiers in Immunology. These vaccine candidates contain highly purified protein
antigens combined with the novel CoVaccine HT™ adjuvant, in both monovalent (single antigen) and bivalent (two antigen)
formulations.  Most  recently,  efforts  to  formulate  all  three  antigens  and  adjuvant  into  a  thermostable  single-vial  vaccine
platform  has  also  been  shown  to  protect  75%  of  vaccinated  NHPs  against  subsequent  Sudan  ebolavirus  challenge,  with
further development to test efficacy against other filovirus infections ongoing.

During August 2021, Vaccine published a scientific article describing the formulation of single-vial platform presentations of
monovalent  (single  antigen),  bivalent  (two  antigens)  and  trivalent  (three  antigens)  combinations  of  filovirus  vaccine
candidates.

During  September  2021,  an  accelerated  preprint  was  posted  on  bioRxiv  of  pre-clinical  immunogenicity  studies  for  CiVax™
(heat  stable  COVID-19  vaccine  program)  demonstrating  durable  broad-spectrum  neutralizing  antibody  responses,  including
against the Beta, Gamma and Delta variants of concern. The scientific article was subsequently published on March 9, 2022
in ACS Infectious Diseases. The work is part of an ongoing collaboration with Axel Lehrer, PhD, Associate Professor at the
Department  of  Tropical  Medicine,  Medical  Microbiology  and  Pharmacology,  JABSOM,  UH  Manoa.  Development  continues
under a non-dilutive $1.5M grant from the NIAID awarded to us in December 2020.

In  December  2021,  100%  protection  of  NHPs  against  lethal  Sudan  ebolavirus  challenge  was  achieved  using  a  bivalent,
thermostabilized vaccine formulated in a single vial, reconstituted only with water immediately prior to use. This milestone is
part of an ongoing collaboration with UH Manoa and further demonstrates the broad applicability of the vaccine platform, and
its potential role in the U.S. government's initiative for pandemic preparedness.

In May 2022, the U.S. Patent and Trademark Office issued a Notice of Allowance for the patent application titled “Composition
and  Methods  of  Manufacturing  Trivalent  Filovirus  Vaccines.”  The  allowed  claims  are  directed  to  unique,  proprietary
composition  and  methods  directed  to  combinations  of  glycoprotein  antigens  with  nano-emulsion  adjuvants  comprising
sucrose fatty acid esters prior to lyophilization. The described vaccine platform has previously been successfully applied to
filovirus vaccines (as mono-, bi- and tri-valent candidates for Zaire ebolavirus, Sudan ebolavirus and Marburg marburgvirus)
as well as SARS-CoV-2 vaccine. No currently licensed lyophilized vaccine that contains an adjuvant is presented in a single
vial  format  and  there  are  few  reports  of  successfully  using  nano-emulsions  in  lyophilized  formulations.  Previous  work  has
demonstrated  the  use  of  a  single  vial  platform  to  co-lyophilize  antigen(s)  and  a  nano-emulsion  adjuvant,  CoVaccine  HT™,
maintaining  key  adjuvant  stability  characteristics  including  particle  size  and  colloidal  stability,  as  well  as  maintaining
immunogenicity. This most recent milestone confirms that, in the context of lethal challenge with Sudan ebolavirus, complete
protection is maintained with the thermostabilized formulation.

In  June  2022,  100%  protection  of  NHPs  against  lethal  Marburg  marburgvirus  challenge  was  achieved  using  a  bivalent,
thermostabilized  vaccine  formulated  in  a  single  vial,  reconstituted  only  with  sterile  water  immediately  prior  to  use.  This
important milestone is part of an ongoing collaboration with UH Manoa, demonstrating the successful presentation of one or
more  antigen(s)  within  the  same  formulation  while  maintaining  full  potency  and  thermostability.  It  further  demonstrates  the
broad applicability of the heat stable vaccine platform, and its potential role in the U.S. government's initiative for pandemic
preparedness.

In  September  2023,  positive  data  demonstrated  two-year  stability  of  thermostabilized  bivalent  and  trivalent  filovirus  vaccine
candidates at temperatures of 40 degrees C (104 degrees F) when formulated in a single vial, needing reconstitution only with
sterile  water  immediately  prior  to  use.  This  important  milestone  is  part  of  an  ongoing  collaboration  with  UH  Manoa,
demonstrating  the  successful  presentation  of  one  or  more  antigen(s)  within  the  same  formulation  while  maintaining  full
potency  and  thermostability.  It  further  demonstrates  the  broad  applicability  of  the  heat  stable  vaccine  platform,  and  its
potential role in the U.S. government’s initiative for pandemic preparedness.

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In January 2024, Vaccine published the preclinical efficacy results of our novel, single-vial, thermostabilized bivalent filovirus
vaccine providing 100% protection against both Sudan ebolavirus (SUDV) and Marburg marburgvirus (MARV) infections. The
manuscript  was  entitled  “Thermostable  bivalent  filovirus  vaccine  protects  against  severe  and  lethal  Sudan  ebolavirus  and
marburgvirus infection”.

RiVax® – for Protection Against Ricin Toxin Exposure

RiVax® is our proprietary vaccine candidate being developed to protect against exposure to ricin toxin and if approved, would
be the first ricin vaccine. The immunogen in RiVax® induces a protective immune response in animal models of ricin exposure
and functionally active antibodies in humans. The immunogen consists of a genetically inactivated ricin A chain subunit that is
enzymatically  inactive  and  lacks  residual  toxicity  of  the  holotoxin.  RiVax®  has  demonstrated  statistically  significant  (p  <
0.0001)  preclinical  survival  results,  providing  100%  protection  against  acute  lethality  in  an  aerosol  exposure  non-human
primate  model  (Roy  et  al,  2015,  Thermostable  ricin  vaccine  protects  rhesus  macaques  against  aerosolized  ricin:  Epitope-
specific  neutralizing  antibodies  correlate  with  protection,  PNAS  USA  112:3782-3787),  and  has  also  been  shown  to  be  well
tolerated  and  immunogenic  in  two  Phase  1  clinical  trials  in  healthy  volunteers.  Results  of  the  first  Phase  1  human  trial  of
RiVax®  established  that  the  immunogen  was  safe  and  induced  antibodies  that  we  believe  may  protect  humans  from  ricin
exposure.  The  antibodies  generated  from  vaccination,  concentrated  and  purified,  were  capable  of  conferring  immunity
passively to recipient animals, indicating that the vaccine was capable of inducing functionally active antibodies in humans.
The outcome of this study was published in the Proceedings of the National Academy of Sciences (Vitetta et al., 2006, A Pilot
Clinical  Trial  of  a  Recombinant  Ricin  Vaccine  in  Normal  Humans,  PNAS,  103:2268-2273).  The  second  trial  that  was
completed in September 2012 and was sponsored by University of Texas Southwestern Medical Center (“UTSW”) evaluated
a more potent formulation of RiVax® that contained an Alum adjuvant. The results of the Phase 1b study indicated that Alum-
adjuvanted  RiVax®  was  safe  and  well  tolerated,  and  induced  greater  ricin  neutralizing  antibody  levels  in  humans  than
adjuvant-free RiVax®. The outcomes of this second study were published in the Clinical and Vaccine Immunology.

We  have  adapted  the  original  manufacturing  process  for  the  immunogen  contained  in  RiVax®  for  thermostability  and  large
scale manufacturing and recent studies have confirmed that the thermostabilized RiVax® formulation enhances the stability of
the RiVax® antigen, enabling storage for at least 1 year at temperatures up to 40 degrees C (104 degrees F). The program
will  pursue  approval  via  the  FDA  “Animal  Rule”  since  it  is  not  possible  to  test  the  efficacy  of  the  vaccine  in  a  clinical  study
which would expose humans to ricin. Uniform, easily measured and species-neutral immune correlates of protection that can
be measured in humans and animals, and are indicative of animal survival to subsequent ricin challenge, are central to the
application  of  the  “Animal  Rule.”  Recent  work  has  identified  such  potential  correlates  of  immune  protection  in  animals  and
work  to  qualify  and  validate  these  approaches  is  continuing,  with  the  goal  of  utilizing  these  assays  in  a  planned  Phase  1/2
clinical trial with the thermostable RiVax®  formulation.  During  September  2018,  we  published  an  extended  stability  study  of
RiVax®,  showing  up  to  100%  protection  in  mice  after  12  months  storage  at  40  degrees  C  (104  degrees  F)  as  well  as
identification  of  a  potential  in  vitro  stability  indicating  assay,  critical  to  adequately  confirming  the  long-term  shelf  life  of  the
vaccine. We have entered into a collaboration with IDT Biologika GmbH (“IDT”) to scale-up the formulation/filling process and
continue  development  and  validation  of  analytical  methods  established  at  IDT  to  advance  the  program.  We  also  initiated  a
development  agreement  with  Emergent  BioSolutions,  Inc.  (“EBS”)  to  implement  a  commercially  viable,  scalable  production
technology for the RiVax® drug substance protein antigen.

The  development  of  RiVax®  has  been  sponsored  through  a  series  of  overlapping  challenge  grants,  UC1,  and  cooperative
grants, U01, from the NIH, granted to us and to UTSW where the vaccine originated. The second clinical trial was supported
by  a  grant  from  the  FDA’s  Office  of  Orphan  Products  to  UTSW.  To  date,  we  and  UTSW  have  collectively  received
approximately $25 million in grant funding from the NIH for the development of RiVax®. In September 2014, we entered into a
contract with the NIH for the development of RiVax® pursuant to which we were awarded an additional $21.2 million of funding
in the aggregate. The development agreements with EBS and IDT were specifically funded under this NIH contract.

In  2017,  NIAID  exercised  options  to  fund  additional  animal  efficacy  studies  and  good  manufacturing  practices  compliant
RiVax® bulk drug substance and finished drug product manufacturing, which is required for the conduct of future preclinical
and  clinical  safety  and  efficacy  studies.  The  exercised  options  provide  us  with  approximately  $4.5  million  in  additional  non-
dilutive  funding,  bringing  the  total  amount  awarded  to  date  under  this  contract  to  $21.2  million,  which  expired  in
February  2021.  The  total  award  of  up  to  $21.2  million  supported  the  preclinical,  manufacturing  and  clinical  development
activities necessary to advance heat stable RiVax® with the FDA. In addition to this funding for the development of RiVax®,
biomarkers for RiVax® testing have been successfully identified, facilitating potential approval under the FDA Animal Rule.

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During December 2019, we initiated a third Phase 1 double-blind, placebo-controlled, randomized study in eight healthy adult
volunteer subjects designed to evaluate the safety and immunogenicity of RiVax® utilizing ThermoVax®. During January 2020,
we  suspended  the  study  after  Emergent  Manufacturing  Operations  Baltimore  LLC  (“EMOB”),  the  manufacturer  of  the  drug
substance, notified us that, after releasing the final drug product to us, EMOB identified that the active drug substance tested
outside  the  established  specification  parameters.  Two  subjects  had  received  doses  as  part  of  the  study  before  the
manufacturer provided this notice. Those two subjects were monitored with no safety issues noted and data was captured in
accordance with the study protocol. They did not receive further doses of study drug.

During April 2020, we received notification from NIAID that they would not be exercising the final contract option to support
the  conduct  of  a  Phase  1/2  clinical  study  in  healthy  volunteers.  As  a  result,  the  total  contract  award  will  not  exceed  $21.2
million. This contract expired in February 2021.

In  November  2021,  an  article  was  published  on  pre-clinical  immunogenicity  studies  for  RiVax®  demonstrating  enduring
protection for at least 12 months post-vaccination. These results, coupled with the previous demonstration of efficacy in mice
and NHPs as well as long-term thermostability (at least 1 year at 40 degrees C or 104 degrees F), reinforce the practicality of
stockpiling and potentially utilizing the RiVax® vaccine in warfighters and civilian first responders without the complexities that
arise for vaccines that require stringent cold chain handling.

RiVax® has been granted Orphan Drug designation as well as Fast Track designation by the FDA for the prevention of ricin
intoxication. In addition, RiVax® has also been granted Orphan Drug designation in the European Union (“EU”) from the EMA
Committee for Orphan Medical Products.

Assuming  development  efforts  are  successful  for  RiVax®,  we  believe  potential  government  procurement  contract(s)  could
reach as much as $200 million. This potential procurement contract information is a forward-looking statement, and investors
are urged not to place undue reliance on this statement. While we have determined this potential procurement contract value
based  on  assumptions  that  we  believe  are  reasonable,  there  are  a  number  of  factors  that  could  cause  our  expectations  to
change or not be realized.

As  a  new  chemical  entity,  an  FDA  approved  RiVax®  vaccine  has  the  potential  to  qualify  for  a  biodefense  Priority  Review
Voucher (“PRV”). Approved under the 21st Century Cures Act in late 2016, the biodefense PRV is awarded upon approval as
a medical countermeasure when the active ingredient(s) have not been otherwise approved for use in any context. PRVs are
transferable and can be sold, with sales in recent years of approximately $100 million. When redeemed, PRVs entitle the user
to  an  accelerated  review  period  of  nine  months,  saving  a  median  of  seven  months  review  time  as  calculated  in  2009.
However,  FDA  must  be  advised  90  days  in  advance  of  the  use  of  the  PRV  and  the  use  of  a  PRV  is  associated  with  an
additional user fee ($1.5 million for fiscal year 2023).

In July 2022, we signed a worldwide exclusive agreement to license and supply our ricin antigen, used in our RiVax® vaccine,
to SERB, for development of a novel therapeutic treatment against ricin toxin poisoning. In pursuit of a ricin antidote, SERB
will  leverage  its  unique  broad-spectrum  polyclonal  antibody  platform,  gained  in  its  acquisition  of  BTG  Specialty
Pharmaceuticals. This specialized manufacturing process generates binding fragments from antibodies that are specific to a
given antigen, helping to ensure potency and purity. This platform is currently used to manufacture two of SERB’s currently
marketed products, CroFab® and DigiFab®.

In  December  2022,  we  published  a  paper  demonstrating  statistically  significant  correlates  of  protection  predicting  survival
after lethal aerosolized ricin challenge in non-human primates. The article titled “Serum antibody profiling identifies vaccine-
induced correlates of protection against aerosolized ricin toxin in rhesus macaques” was published in the journal npj Vaccines.

Ricin Toxin

Ricin toxin can be cheaply and easily produced, is stable over long periods of time, is toxic by several routes of exposure and
thus has the potential to be used as a biological weapon against military and/or civilian targets. As a bioterrorism agent, ricin
could  be  disseminated  as  an  aerosol,  by  injection,  or  as  a  food  supply  contaminant.  The  potential  use  of  ricin  toxin  as  a
biological weapon of mass destruction has been highlighted in a Federal Bureau of Investigation Bioterror report released in
November 2007 titled Terrorism 2002-2005, which states that “Ricin and the bacterial agent anthrax are emerging as the most
prevalent agents involved in WMD investigations.” Al Qaeda in the Arabian Peninsula had threatened the use of ricin toxin to
poison food and water supplies and in connection with explosive devices. Domestically, the threat from ricin remains

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a concern for security agencies. In April 2013, letters addressed to the U.S. President, a Senator and a judge tested positive
for ricin. As recently as September 2020, ricin-laced letters addressed to the White House and others addressed to Texas law
enforcement agencies were intercepted before delivery raising fresh concerns about the deadly toxin.

The Centers for Disease Control and Prevention has classified ricin toxin as a Category B biological agent. Ricin works by
first binding to glycoproteins found on the exterior of a cell, and then entering the cell and inhibiting protein synthesis leading
to cell death. Once exposed to ricin toxin, there is no effective therapy available to reverse the course of the toxin. The recent
ricin  threat  to  government  officials  has  heightened  the  awareness  of  this  toxic  threat.  Currently,  there  is  no  FDA  approved
vaccine to protect against the possibility of ricin toxin being used in a terrorist attack, or its use as a weapon on the battlefield
nor is there a known antidote for ricin toxin exposure.

SGX943 – for Treating Emerging and/or Antibiotic-Resistant Infectious Diseases

SGX943 is an IDR, containing the same active ingredient as SGX942. Dusquetide is a fully synthetic, 5-amino acid peptide
with  high  aqueous  solubility  and  stability.  Extensive  in  vivo  preclinical  studies  have  demonstrated  enhanced  clearance  of
bacterial infection with SGX943 administration. SGX943 has shown efficacy against both Gram-negative and Gram-positive
bacterial infections in preclinical models, independent of whether the bacteria is antibiotic-resistant or antibiotic-sensitive.

The  innate  immune  system  is  responsible  for  rapid  and  non-specific  responses  to  combat  bacterial  infection.  Augmenting
these  responses  represents  an  alternative  approach  to  treating  bacterial  infections.  In  animal  models,  IDRs  are  efficacious
against  both  antibiotic-sensitive  and  antibiotic-resistant  infections,  both  Gram-positive  and  Gram-negative  bacteria,  and  are
active  irrespective  of  whether  the  bacteria  occupy  a  primarily  extracellular  or  intracellular  niche.  IDRs  are  also  effective  as
stand-alone agents or in conjunction with antibiotics. An IDR for the treatment of serious bacterial infections encompasses a
number of clinical advantages including:

● Treatment when antibiotics are contraindicated, such as:

o before the infectious organism and/or its antibiotic susceptibility is known; or

o in at-risk populations prior to infection.

● An ability to be used as an additive, complementary treatment with antibiotics, thereby:

o enhancing efficacy of sub-optimal antibiotic regimens (e.g., partially antibiotic-resistant infections);

o enhancing  clearance  of  infection,  thereby  minimizing  the  generation  of  antibiotic  resistance  (e.g.,  in  treating

melioidosis); and

o reducing the required antibiotic dose, again potentially minimizing the generation of antibiotic resistance.

● An  ability  to  modulate  the  deleterious  consequences  of  inflammation  in  response  to  the  infection,  including  the

inflammation caused by antibiotic-driven bacterial lysis.

● Being unlikely to generate bacterial resistance since the IDR acts on the host, and not the pathogen.

Importantly,  systemic  inflammation  and  multi-organ  failure  is  the  ultimate  common  outcome  of  not  only  emerging  and/or
antibiotic-resistant  infectious  diseases,  but  also  of  most  biothreat  agents  (e.g.,  Burkholderia  pseudomallei),  indicating  that
dusquetide  would  be  applicable  not  only  to  antibiotic-resistant  infection,  but  also  to  biothreat  agents,  especially  where  the
pathogen is not known and/or has been engineered for enhanced antibiotic resistance.

In  May  2019,  we  were  awarded  a  DTRA  subcontract  of  approximately  $600,000  over  three  years  to  participate  in  a
threat  agents.  As  of
biodefense  contract 
December 31, 2023, there was negligible revenue earned or expense incurred related to the DTRA subcontract; the funding
for this subcontract has concluded.

the  development  of  medical  countermeasures  against  bacterial 

for 

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The Drug Approval Process

The FDA and comparable regulatory agencies in state, local and foreign jurisdictions impose substantial requirements on the
clinical  development,  manufacture  and  marketing  of  new  drug  and  biologic  products.  The  FDA,  through  regulations  that
implement the Federal Food, Drug, and Cosmetic Act, as amended (“FDCA”), and other laws and comparable regulations for
other  agencies,  regulate  research  and  development  activities  and  the  testing,  manufacture,  labeling,  storage,  shipping,
approval,  recordkeeping,  advertising,  promotion,  sale,  export,  import  and  distribution  of  such  products.  The  regulatory
approval process is generally lengthy, expensive and uncertain. Failure to comply with applicable FDA and other regulatory
requirements can result in sanctions being imposed on us or the manufacturers of our products, including holds on clinical
research, civil or criminal fines or other penalties, product recalls, or seizures, or total or partial suspension of production or
injunctions, refusals to permit products to be imported into or exported out of the U.S., refusals of the FDA to grant approval of
drugs or to allow us to enter into government supply contracts, withdrawals of previously approved marketing applications and
criminal prosecutions.

Before  human  clinical  testing  in  the  U.S.  of  a  new  drug  compound  or  biological  product  can  commence,  an  Investigational
New  Drug  (“IND”),  application  is  required  to  be  submitted  to  the  FDA.  The  IND  application  includes  results  of  pre-clinical
animal  studies  evaluating  the  safety  and  efficacy  of  the  drug  and  a  detailed  description  of  the  clinical  investigations  to  be
undertaken.

Clinical trials are normally done in three phases, although the phases may overlap. Phase 1 trials are smaller trials concerned
primarily  with  metabolism  and  pharmacologic  actions  of  the  drug  and  with  the  safety  of  the  product.  Phase  2  trials  are
designed  primarily  to  demonstrate  effectiveness  and  safety  in  treating  the  disease  or  condition  for  which  the  product  is
indicated.  These  trials  typically  explore  various  doses  and  regimens.  Phase  3  trials  are  expanded  clinical  trials  intended  to
gather additional information on safety and effectiveness needed to clarify the product’s benefit-risk relationship and generate
information for proper labeling of the drug, among other things. The FDA receives reports on the progress of each phase of
clinical testing and may require the modification, suspension or termination of clinical trials if an unwarranted risk is presented
to  patients.  When  data  is  required  from  long-term  use  of  a  drug  following  its  approval  and  initial  marketing,  the  FDA  can
require Phase 4, or post-marketing, studies to be conducted.

With certain exceptions, once successful clinical testing is completed, the sponsor can submit a NDA, for approval of a drug,
or a Biologic License Application (“BLA”), for biologics such as vaccines, which will be reviewed, and if successful, approved
by the FDA, allowing the product to be marketed. The process of completing clinical trials for a new drug is likely to take a
number of years and require the expenditure of substantial resources. Furthermore, the FDA or any foreign health authority
may not grant an approval on a timely basis, if at all. The FDA may deny the approval of a NDA or BLA, in its sole discretion,
if it determines that its regulatory criteria have not been satisfied or may require additional testing or information. Among the
conditions  for  marketing  approval  is  the  requirement  that  the  prospective  manufacturer’s  quality  control  and  manufacturing
procedures conform to good manufacturing practice regulations. In complying with standards contained in these regulations,
manufacturers must continue to expend time, money and effort in the area of production, quality control and quality assurance
to ensure full technical compliance. Manufacturing facilities, both foreign and domestic, also are subject to inspections by, or
under the authority of, the FDA and by other federal, state, local or foreign agencies.

Even  after  initial  FDA  or  foreign  health  authority  approval  has  been  obtained,  further  studies,  including  Phase  4  post-
marketing studies, may be required to provide additional data on safety and will be required to gain approval for the marketing
of a product as a treatment for clinical indications other than those for which the product was initially tested. For certain drugs
intended  to  treat  serious,  life-threatening  conditions  that  show  great  promise  in  earlier  testing,  the  FDA  can  also  grant
conditional approval. However, drug developers are required to study the drug further and verify clinical benefit as part of the
conditional  approval  provision,  and  the  FDA  can  revoke  approval  if  later  testing  does  not  reproduce  previous  findings.  The
FDA  may  also  condition  approval  of  a  product  on  the  sponsor  agreeing  to  certain  mitigation  strategies  that  can  limit  the
unfettered marketing of a drug. Also, the FDA or foreign regulatory authority will require post-marketing reporting to monitor
the  side  effects  of  the  drug.  Results  of  post-marketing  programs  may  limit  or  expand  the  further  marketing  of  the  product.
Further,  if  there  are  any  modifications  to  the  drug,  including  any  change  in  indication,  manufacturing  process,  labeling  or
manufacturing facility, an application seeking approval of such changes will likely be required to be submitted to the FDA or
foreign regulatory authority.

In the U.S., the FDCA, the Public Health Service Act, the Federal Trade Commission Act, and other federal and state statutes
and  regulations  govern,  or  influence  the  research,  testing,  manufacture,  safety,  labeling,  storage,  record  keeping,  approval,
advertising and promotion of drug, biological, medical device and food products. Noncompliance with applicable

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requirements can result in, among other things, fines, recall or seizure of products, refusal to permit products to be imported
into  the  U.S.,  refusal  of  the  government  to  approve  product  approval  applications  or  to  allow  us  to  enter  into  government
supply  contracts,  withdrawal  of  previously  approved  applications  and  criminal  prosecution.  The  FDA  may  also  assess  civil
penalties for violations of the FDCA involving medical devices.

For  biodefense  development,  such  as  with  RiVax®,  the  FDA  has  instituted  policies  that  are  expected  to  result  in  shorter
pathways to market. This potentially includes approval for commercial use utilizing the results of animal efficacy trials, rather
than efficacy trials in humans. However, we will still have to establish that the vaccine and countermeasures it is developing
are safe in humans at doses that are correlated with the beneficial effect in animals. Such clinical trials will also have to be
completed in distinct populations that are subject to the countermeasures; for instance, the very young and the very old, and
in pregnant women, if the countermeasure is to be licensed for civilian use. Other agencies will have an influence over the
benefit-risk  scenarios  for  deploying  the  countermeasures  and  in  establishing  the  number  of  doses  utilized  in  the  Strategic
National Stockpile. We may not be able to sufficiently demonstrate the animal correlation to the satisfaction of the FDA, as
these correlates are difficult to establish and are often unclear. Invocation of the animal rule may raise issues of confidence in
the  model  systems  even  if  the  models  have  been  validated.  For  many  of  the  biological  threats,  the  animal  models  are  not
available  and  we  may  have  to  develop  the  animal  models,  a  time-consuming  research  effort.  There  are  few  historical
precedents,  or  recent  precedents,  for  the  development  of  new  countermeasure  for  bioterrorism  agents.  Despite  the  animal
rule,  the  FDA  may  require  large  clinical  trials  to  establish  safety  and  immunogenicity  before  licensure  and  it  may  require
safety and immunogenicity trials in additional populations. Approval of biodefense products may be subject to post-marketing
studies, and could be restricted in use in only certain populations.

Vaccines  are  approved  under  the  BLA  process  that  exists  under  the  Public  Health  Service  Act.  In  addition  to  the  greater
technical  challenges  associated  with  developing  biologics,  the  potential  for  generic  competition  is  lower  for  a  BLA  product
than  a  small  molecule  product  subject  to  a  NDA  under  the  Federal  Food,  Drug  and  Cosmetic  Act.  Under  the  Patient
Protection and Affordable Care Act enacted in 2010, a “generic” version of a biologic is known as a biosimilar and the barriers
to entry – whether legal, scientific, or logistical – for a biosimilar version of a biologic approved under a BLA are higher.

Orphan Drug Designation

Under the Orphan Drug Act, the FDA may grant orphan drug designation to drugs or biologics intended to treat a rare disease
or condition – generally a disease or condition that affects fewer than 200,000 individuals in the U.S. Orphan drug designation
must be requested before submitting a NDA or BLA. After the FDA grants orphan drug designation, the generic identity of the
drug or biologic and its potential orphan use are disclosed publicly by the FDA. Orphan drug designation does not convey any
advantage  in,  or  shorten  the  duration  of,  the  regulatory  review  and  approval  process.  The  first  NDA  or  BLA  applicant  to
receive  FDA  approval  for  a  particular  active  ingredient  to  treat  a  particular  disease  with  FDA  orphan  drug  designation  is
entitled  to  a  seven-year  exclusive  marketing  period  in  the  U.S.  for  that  product,  for  that  indication.  During  the  seven-year
exclusivity period, the FDA may not approve any other applications to market the same drug or biologic for the same disease,
except in limited circumstances, such as a showing of clinical superiority to the product with orphan drug exclusivity. Orphan
drug exclusivity does not prevent the FDA from approving a different drug or biologic for the same disease or condition, or the
same drug or biologic for a different disease or condition. Among the other benefits of orphan drug designation are tax credits
for certain research and a waiver of the NDA or BLA application user fee.

Fast Track Designation and Accelerated Approval

The  FDA  is  required  to  facilitate  the  development,  and  expedite  the  review,  of  drugs  or  biologics  that  are  intended  for  the
treatment of a serious or life-threatening disease or condition for which there is no effective treatment and which demonstrate
the potential to address unmet medical needs for the condition. Under the fast track program, the sponsor of a new drug or
biologic candidate may request that the FDA designate the candidate for a specific indication as a fast track drug or biologic
concurrent  with,  or  after,  the  filing  of  the  IND  for  the  candidate.  The  FDA  must  determine  if  the  drug  or  biologic  candidate
qualifies for fast track designation within 60 days of receipt of the sponsor’s request. Unique to a fast track product, the FDA
may initiate review of sections of a fast track product’s NDA or BLA before the application is complete. This rolling review is
available if the applicant provides, and the FDA approves, a schedule for the submission of the remaining information and the
applicant pays applicable user fees. However, the FDA’s time period goal for reviewing an application does not begin until the
last section of the NDA or BLA is submitted. Additionally, the fast track designation may be withdrawn by the FDA if the FDA
believes that the designation is no longer supported by data emerging in the clinical trial process.

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Any product submitted to the FDA for marketing, including under a fast track program, may be eligible for other types of FDA
programs intended to expedite development and review, such as accelerated approval. Drug or biological products studied for
their safety and effectiveness in treating serious or life-threatening illnesses and that provide meaningful therapeutic benefit
over  existing  treatments  may  receive  accelerated  approval,  which  means  the  FDA  may  approve  the  product  based  upon  a
surrogate endpoint that is reasonably likely to predict clinical benefit, or on a clinical endpoint that can be measured earlier
than  irreversible  morbidity  or  mortality,  that  is  reasonably  likely  to  predict  an  effect  on  irreversible  morbidity  or  mortality  or
other  clinical  benefit,  taking  into  account  the  severity,  rarity,  or  prevalence  of  the  condition  and  the  availability  or  lack  of
alternative treatments.

In clinical trials, a surrogate endpoint is a measurement of laboratory or clinical signs of a disease or condition that substitutes
for  a  direct  measurement  of  how  a  patient  feels,  functions,  or  survives.  Surrogate  endpoints  can  often  be  measured  more
easily or more rapidly than clinical endpoints. A drug or biologic candidate approved on this basis is subject to rigorous post-
marketing compliance requirements, including the completion of Phase 4 or post-approval clinical trials to confirm the effect
on the clinical endpoint. Failure to conduct required post-approval studies, or confirm a clinical benefit during post-marketing
studies, will allow the FDA to withdraw the drug or biologic from the market on an expedited basis. All promotional materials
for drug candidates approved under accelerated regulations are subject to prior review by the FDA.

Pediatric Information

Under  the  Pediatric  Research  Equity  Act  (“PREA”),  NDAs  or  BLAs  or  supplements  to  NDAs  or  BLAs  must  contain  data  to
assess  the  safety  and  effectiveness  of  the  drug  for  the  claimed  indications  in  all  relevant  pediatric  subpopulations  and  to
support  dosing  and  administration  for  each  pediatric  subpopulation  for  which  the  drug  is  safe  and  effective.  The  FDA  may
grant  full  or  partial  waivers,  or  deferrals,  for  submission  of  data.  Unless  otherwise  required  by  regulation,  PREA  does  not
apply to any drug for an indication for which orphan designation has been granted.

Paediatric Investigation Plan

As  part  of  the  regulatory  process  for  the  registration  of  new  medicines  with  the  EMA  and  the  MHRA,  pharmaceutical
companies are required to provide a PIP outlining the Company’s strategy for investigation of the new medicinal products in
the paediatric population. In some instances, a waiver negating the need for a PIP for certain conditions may be granted by
the EMA or MHRA when development of a medicine for use in children is not feasible or appropriate.

Innovative Licensing and Access Pathway

The  ILAP  was  launched  in  the  UK  at  the  start  of  2021  to  accelerate  the  development  and  access  to  promising  medicines,
thereby facilitating patient access to new medicines. The pathway, part of the UK’s plan to attract life sciences development in
the post-Brexit era, features enhanced input and interactions with the MHRA and other stakeholders including the NICE, and
the  SMC.  The  decision  to  award  the  Innovation  Passport  is  made  by  an  ILAP  Steering  Group,  which  is  comprised  of
representatives from MHRA, NICE, and SMC. The Innovation Passport designation is the first step in the ILAP process and
triggers the MHRA and its partner agencies to create a target development profile to chart out a roadmap for regulatory and
development milestones with the goal of early patient access in the UK. Other benefits of ILAP include a 150-day accelerated
assessment, rolling review and a continuous benefit risk assessment.

Early Access to Medicines Scheme

Launched in April 2014 in the United Kingdom by the MHRA, the Early Access to Medicines Scheme (“EAMS”) offers severely
ill patients with life-threatening and seriously debilitating conditions the lifeline of trying ground-breaking new medicines earlier
than they would normally be accessible. PIM designation is the first phase of EAMS and is awarded following an assessment
of early nonclinical and clinical data by the MHRA. The criteria product candidates must meet to obtain PIM designation are:

● Criterion  1  –  The  condition  should  be  life-threatening  or  seriously  debilitating  with  a  high  unmet  medical  need  (i.e.,
there is no method of treatment, diagnosis or prevention available or existing methods have serious limitations).

● Criterion 2 – The medicinal product is likely to offer major advantage over methods currently used in the UK.

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● Criterion  3  –  The  potential  adverse  effects  of  the  medicinal  product  are  likely  to  be  outweighed  by  the  benefits,
allowing  for  the  reasonable  expectation  of  a  positive  benefit  risk  balance.  A  positive  benefit  risk  balance  should  be
based on preliminary scientific evidence that the safety profile of the medicinal product is likely to be manageable and
acceptable in relation to the estimated benefits.

False Claims Laws

The federal False Claims Act prohibits, among other things, any person or entity from knowingly presenting, or causing to be
presented, a false claim for payment to, or approval by, the federal government or knowingly making, using, or causing to be
made or used a false record or statement material to a false or fraudulent claim to the federal government. As a result of a
modification made by the Fraud Enforcement and Recovery Act of 2009, a claim includes “any request or demand” for money
or property presented to the U.S. government.

Anti-Kickback Laws

The  federal  Anti-Kickback  Statute  prohibits,  among  other  things,  any  person  or  entity,  from  knowingly  and  willfully  offering,
paying,  soliciting  or  receiving  any  remuneration,  directly  or  indirectly,  overtly  or  covertly,  in  cash  or  in  kind,  to  induce  or  in
return  for  purchasing,  leasing,  ordering  or  arranging  for  the  purchase,  lease  or  order  of  any  item  or  service  reimbursable
under  Medicare,  Medicaid  or  other  federal  healthcare  programs.  The  term  remuneration  has  been  interpreted  broadly  to
include anything of value. The Anti-Kickback Statute has been interpreted to apply to arrangements between pharmaceutical
manufacturers on one hand and prescribers, purchasers, and formulary managers on the other.

United States Healthcare Reform

Federal  Physician  Payments  Sunshine  Act  and  its  implementing  regulations  require  that  certain  manufacturers  of  drugs,
devices,  biological  and  medical  supplies  for  which  payment  is  available  under  Medicare,  Medicaid  or  the  Children’s  Health
Insurance Program (with certain exceptions) to report information related to certain payments or other transfers of value made
or distributed to physicians and teaching hospitals, or to entities or individuals at the request of, or designated on behalf of,
the physicians and teaching hospitals and to report annually certain ownership and investment interests held by physicians
and their immediate family members.

In addition, we may be subject to data privacy and security regulation by both the federal government and the states in which
we  conduct  our  business.  The  Health  Insurance  Portability  and  Accountability  Act  (“HIPAA”),  as  amended  by  the  Health
Information Technology for Economic and Clinical Health Act (“HITECH”), and its implementing regulations, imposes certain
requirements  relating  to  the  privacy,  security  and  transmission  of  individually  identifiable  health  information.  Among  other
things,  HITECH  makes  HIPAA’s  privacy  and  security  standards  directly  applicable  to  “business  associates”  –  independent
contractors  or  agents  of  covered  entities  that  receive  or  obtain  protected  health  information  in  connection  with  providing  a
service  on  behalf  of  a  covered  entity.  HITECH  also  created  four  new  tiers  of  civil  monetary  penalties,  amended  HIPAA  to
make  civil  and  criminal  penalties  directly  applicable  to  business  associates  and  possibly  other  persons,  and  gave  state
attorneys general new authority to file civil actions for damages or injunctions in federal courts to enforce the federal HIPAA
laws  and  seek  attorneys’  fees  and  costs  associated  with  pursuing  federal  civil  actions.  In  addition,  state  laws  govern  the
privacy and security of health information in certain circumstances, many of which differ from each other in significant ways
and may not have the same effect, thus complicating compliance efforts.

Third-Party Suppliers and Manufacturers

Drug  substance  and  drug  product  manufacturing  is  outsourced  to  qualified  suppliers.  We  do  not  have  manufacturing
capabilities/infrastructure  and  do  not  intend  to  develop  the  capacity  to  manufacture  drug  products  substances.  We  have
agreements with third-party manufacturers to supply bulk drug substances for our product candidates and with third parties to
formulate,  package  and  distribute  our  product  candidates.  Our  employees  include  professionals  with  expertise  in
pharmaceutical  manufacturing  development,  quality  assurance  and  third-party  supplier  management  who  oversee  work
conducted  by  third-party  companies.  We  believe  that  we  have  on  hand  or  can  easily  obtain  sufficient  amounts  of  product
candidates to complete our currently contemplated clinical trials. All of the drug substances used in our product candidates
currently  are  manufactured  by  single  suppliers.  While  we  have  not  experienced  any  supply  disruptions,  the  number  of
manufacturers of the drug substances is limited. In the event it is necessary or advisable to acquire supplies from alternative
suppliers,  assuming  commercially  reasonable  terms  could  be  reached,  the  challenge  would  be  the  efficient  transfer  of
technology and know-how from current manufactures to the new supplier. Formulation and distribution of our finished

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product candidates also currently are conducted by single suppliers but we believe that alternative sources for these services
are  readily  available  on  commercially  reasonable  terms,  subject  to  the  efficient  transfer  of  technology  and  know-how  from
current suppliers to the new supplier.

All  of  the  current  agreements  for  the  supply  of  bulk  drug  substances  for  our  product  candidates  and  for  the  formulation  or
distribution  of  our  product  candidates  relate  solely  to  the  development  (including  preclinical  and  clinical)  of  our  product
candidates.  Under  these  contracts,  our  product  candidates  are  manufactured  upon  our  order  of  a  specific  quantity.  In  the
event that we obtain marketing approval for a product candidate, we will qualify secondary suppliers for all key manufacturing
activities supporting the marketing application.

Marketing and Collaboration

We do not currently have any sales and marketing capability, other than to potentially market our biodefense vaccine products
directly to government agencies. With respect to other commercialization efforts, we currently intend to seek distribution and
other collaboration arrangements for the sales and marketing of any product candidate that is approved, while also evaluating
the  potential  to  commercialize  on  our  own  in  orphan  disease  indications.  From  time  to  time,  we  have  had  and  are  having
strategic  discussions  with  potential  collaboration  partners  for  our  biodefense  vaccine  product  candidates,  although  no
assurance can be given that we will be able to enter into one or more collaboration agreements for our product candidate on
acceptable  terms,  if  at  all.  We  believe  that  both  military  and  civilian  health  authorities  of  the  U.S.  and  other  countries  will
increase their stockpiling of therapeutics and vaccines to treat and prevent diseases and conditions that could ensue following
a bioterrorism attack.

On August 25, 2013, we entered into an agreement with SciClone, pursuant to which SciClone provided us with access to its
oral  mucositis  clinical  and  regulatory  data  library  in  exchange  for  exclusive  commercialization  rights  for  SGX942  in  the
People’s Republic of China, including Hong Kong and Macau, subject to the negotiation of economic terms. SciClone’s data
library  was  generated  from  two  sequential  Phase  2  clinical  studies  conducted  in  2010  and  2012  evaluating  SciClone’s
compound, SCV-07, for the treatment of oral mucositis caused by chemoradiation therapy in head and neck cancer patients,
before  SciClone  terminated  its  program.  By  analyzing  data  available  from  the  placebo  subjects  in  the  SciClone  trials,  we
acquired valuable insight into disease progression, along with quantitative understanding of its incidence and severity in the
head and neck cancer patient population. This information assisted us with the design of the SGX942 Phase 2 clinical trial, in
which positive preliminary results were announced in December 2015.

On September 9, 2016, we and SciClone entered into an exclusive license agreement, pursuant to which we granted rights to
SciClone  to  develop,  promote,  market,  distribute  and  sell  SGX942  in  the  People’s  Republic  of  China,  including  Hong  Kong
and  Macau,  as  well  as  Taiwan,  South  Korea  and  Vietnam.  Under  the  terms  of  the  license  agreement,  SciClone  will  be
responsible for all aspects of development, product registration and commercialization in the territories, having access to data
generated by us. In exchange for exclusive rights, SciClone will pay us royalties on net sales, and we will supply commercial
drug  product  to  SciClone  on  a  cost-plus  basis,  while  maintaining  worldwide  manufacturing  rights.  We  also  entered  into  a
common stock purchase agreement with SciClone pursuant to which we sold 23,530 shares of our common stock to SciClone
for approximately $127.50 per share, for an aggregate price of $3 million.

Competition

Our  competitors  are  pharmaceutical  and  biotechnology  companies,  most  of  whom  have  considerably  greater  financial,
technical, and marketing resources than we do. Universities and other research institutions, including the U.S. Army Medical
Research  Institute  of  Infectious  Diseases,  also  compete  in  the  development  of  treatment  technologies,  and  we  face
competition from other companies to acquire rights to those technologies.

HyBryte™ Competition

There is currently no approved cure for CTCL and treatments are prescribed to manage symptoms. The FDA has approved
several treatments for later stages (IIB-IV) of CTCL and/or in conditions that are unresponsive to prior treatment. Three are
targeted  therapies  (Targretin®-caps, Ontak®  and  Adcetris®),  two  are  histone  deacetylases  inhibitors  (Zolina®  and  Istodax®)
and the remaining two are topical therapies (Valchor® and Targretin®-gel). There are currently no FDA approved therapies for
the  treatment  of  front-line,  early  stage  (I-IIA)  CTCL;  however  certain  topical  chemotherapies  and  topical,  radiation,
photodynamic  and  other  therapies  which  are  approved  for  indications  other  than  CTCL  are  prescribed  off-label  for  the
treatment of early stage CTCL. These include narrow-band ultraviolet B (NB-UVB) light therapy and psoralen combined

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with ultraviolet A UVA light therapy (“PUVA”); however, PUVA treatments are usually limited to three times per week and 200
times in total due to the potentially carcinogenic side effect, while NB UVB is known to be effective against patches but less so
against  plaque  lesions,  common  in  early  stage  CTCL.  There  are  other  drugs  currently  in  development  that  may  have  the
potential to be used in early stage (I-IIA) CTCL, primarily in early Phase 1 and 2 clinical studies. Other treatments for later
stage disease are not considered direct competitors.

SGX302 Competition

There  is  currently  no  approved  cure  for  psoriasis  and  treatments  are  prescribed  to  manage  symptoms.  The  FDA  has
approved  several  topical  and  systemic  treatments  for  psoriasis.  Systemic  therapies  dominate  the  treatment  of  severe  and
increasingly the more severe moderate patients, and include biologics aimed at reducing systemic inflammation. Skin directed
therapy remains the primary treatment for mild-to-moderate disease. Current therapies for mild-to-moderate disease include
psoralen  activated  by  ultraviolet  A  (“PUVA”,  a  photodynamic  therapy),  emollients,  topical  steroids,  vitamin  D  preparations
including retinoids (e.g., Sorilux®, Dovonex®, Cacitrene®), coal tar, salicylic acid, calcineurin inhibitors (e.g., Prograf®, Elidel®,
Zorac®, Tazorac®) and dithranols (e.g., Drithocreme®).  Other  phototherapy  approaches  include  the  use  of  both  broad-band
and  narrow-band  ultraviolet  B  light.  There  are  also  a  number  of  ongoing  Phase  2  and  3  clinical  trials  in  mild  to  moderate
psoriasis.

Compared to PUVA, photoactivated hypericin uses non-carcinogenic and more penetrative visible light (unlike ultraviolet light
used with PUVA) and a non-mutagenic compound hypericin (unlike psoralen used with PUVA), and is more highly targeted
and more commensurate with long-term treatment. Compared to other skin-directed therapies, photoactivated hypericin has
demonstrated  a  comparatively  low  local  irritancy/adverse  event  rate  with  minimal  long-term  skin  effects.  Compared  to
in  more  severe  patients  only,  photoactivated  hypericin  does  not  cause
systemic 
immunosuppression.

therapies,  commonly  used 

SGX94/942/945 Competition

Because  SGX94  (dusquetide)  uses  a  novel  mechanism  of  action  in  combating  bacterial  infections,  there  are  no  direct
competitors  at  this  time.  Bacterial  infections  are  routinely  treated  with  antibiotics  and  SGX94  treatment  is  anticipated  to  be
utilized  primarily  where  antibiotics  are  insufficient  (e.g.,  due  to  antibiotic  resistance)  or  contra-indicated  (e.g.,  in  situations
where the development of antibiotic resistance is a significant concern). Many groups are working on the antibiotic resistance
problem  and  research  into  the  innate  immune  system  is  intensifying,  making  emerging  competition  likely  (from  companies
such as Celtaxsys Inc., Innaxon Therapeutics and Innate Pharma SA).

There  is  currently  one  drug  approved  for  the  treatment  of  oral  mucositis  in  hematological  cancer  (palifermin).  There  are
currently no approved drugs for treatment of oral mucositis in cancers with solid tumors (e.g., head and neck cancer). There
are several drugs in clinical development for oral mucositis – three in Phase 3 (brilacidin by Innovation Pharmaceuticals, Inc.,
a  mucobuccal  tablet  by  Monopar  Therapeutics  LLC  and  GC4419  by  Galera  Therapeutics,  Inc.).  There  are  various  natural
products  in  small  and/or  open  label  studies  (including  sage,  turmeric,  honey  and  olive  oil).  In  addition,  there  are  medical
devices approved for the treatment of oral mucositis including MuGard®, GelClair®, Episil®, and Caphosol®. These devices
attempt to create a protective barrier around the oral ulceration with no biologic activity in treating the underlying disease.

There  is  currently  no  approved  cure  for  BD  and  treatments  are  prescribed  to  manage  symptoms.  Treatments  may  include
both maintenance therapies and those specifically addressing mucocutaneous flares (e.g., mouth ulcers, genital ulcers and
leg ulcers). Corticosteroids are generally applied topically to sores and as eyedrops and may also be given systemically to
reduce inflammation. Although used frequently, they have limited efficacy over the long-term and have significant side effects
that become more concerning with more chronic use. Other treatments for BD flares involve suppressing the immune system
with  drugs  (e.g.,  cyclosporine  or  cyclophosphamide).  These  drugs  come  with  a  higher  risk  of  infection,  liver  and  kidney
problems, low blood counts and high blood pressure. For skin and mucosal manifestations of BD, anti-inflammatory drugs are
also used, including colchicine, azathioprine, anti-TNF, anti-interferon alpha, anti-IL-17 and anti-IL-23 medications. The only
approved drug in BD is apremilast, which is used as a maintenance therapy to prevent formation of oral ulcers. Apremilast is
associated with both high cost and side effects including diarrhea, nausea, upper respiratory tract infection and headache.

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ThermoVax® Competition

Multiple  groups  and  companies  are  working  to  address  the  unmet  need  of  vaccine  thermostability  using  a  variety  of
technologies.  In  addition,  other  organizations,  such  as  the  Bill  and  Melinda  Gates  Foundation  and  PATH,  have  programs
designed to advance technologies to address this need.

Several  stabilization  technologies  currently  being  developed  involve  mixing  vaccine  antigen  +/-  adjuvant  with  various
proprietary  excipients  or  co-factors  that  either  serve  to  stabilize  the  vaccine  or  biological  product  in  a  liquid  or  dried
(lyophilized) form. Examples of these approaches include the use of various plant-derived sugars and macromolecules being
developed  by  companies  such  as  iosBio.  Variation  Biotechnologies,  Inc.  (“VBI”)  is  developing  a  lipid  system  (resembling
liposomes)  to  stabilize  viral  antigens,  including  virus-like  particles  (“VLPs”),  and  for  potential  application  to  a  conventional
influenza vaccine among others.

Additionally, companies like Altimmune, Inc., and Panacea Biotec Ltd., and Compass Biotech Inc. are developing proprietary
vaccines with the application of some form of stabilization technology.

Public Health Solutions Competition

We face competition in the area of biodefense product development from various public and private companies, universities
and governmental agencies, such as the U.S. Army, some of whom may have their own proprietary technologies which may
directly compete with our technologies.

The U.S. Army Medical Research Institute of Infectious Diseases, the DoD’s lead laboratory for medical research to counter
biological threats is also developing a ricin vaccine candidate, RVEc™. RVEc™ has been shown to be fully protective in mice
exposed  to  lethal  doses  of  ricin  toxin  by  the  aerosol  route.  Further  studies,  in  both  rabbits  and  nonhuman  primates,  were
conducted to evaluate RVEc™’s safety as well as its immunogenicity, with positive results observed. No further data has been
released  in  recent  years.  A  monoclonal  antibody  is  also  being  developed  by  Mapp  Biopharmaceutical  Inc.  as  a  ricin
therapeutic,  with  administration  4  hours  after  exposure  demonstrating  efficacy  while  administration  12  hours  after  ricin
exposure was not protective in animal models.

There are no approved vaccines to prevent infection and/or mitigate exposure to Sudan ebolavirus or Marburg marburgvirus.
There are other vaccine candidates in development, primarily using viral-vectored vaccine platforms. These platforms may be
contra-indicated in the immune-compromised, pregnant individuals or children. They may also have limited efficacy on repeat
administration.

Patents and Other Proprietary Rights

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

We also depend upon the skills, knowledge and experience of our scientific and technical personnel, as well as that of our
advisors,  consultants  and  other  contractors,  none  of  which  is  patentable.  To  help  protect  our  proprietary  knowledge  and
experience  that  is  not  patentable,  and  for  inventions  for  which  patents  may  be  difficult  to  enforce,  we  rely  on  trade  secret
protection and confidentiality agreements to protect our interests. To this end, we require all employees, consultants, advisors
and  other  contractors  to  enter  into  confidentiality  agreements,  which  prohibit  the  disclosure  of  confidential  information  and,
where applicable, require disclosure and assignment to us of the ideas, developments, discoveries and inventions important
to our business.

In  2014,  we  acquired  a  novel  PDT  that  utilizes  safe  visible  light  for  activation,  which  we  refer  to  as  HyBryte™.  The  active
ingredient in HyBryte™ is synthetic hypericin, a photosensitizer which is topically applied to skin lesions and then activated by
fluorescent light 16 to 24 hours later. As part of the acquisition, we acquired a license agreement relating to the use of photo-
activated  hypericin,  composition  of  matter  patent  for  HyBryte™  (U.S.  patent  8,629,302)  and  additional  issued  and  pending
applications, both in the U.S. and abroad. U.S. patent 8,629,302 is expected to expire in September 2030. In August 2018, we
were granted a U.S. patent (No. 10,053,513) titled “Systems and Methods for Producing Synthetic

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Hypericin.”  This  newly  issued  patent,  expected  to  expire  in  2036,  broadens  the  production  around  synthetic  hypericin.  Our
proprietary  formulation  of  synthetic  hypericin  also  has  been  granted  a  European  patent  for  the  treatment  of  psoriasis,  EP
2571507,  and  complements  the  method  of  treatment  claims  covered  by  the  previously  issued  U.S.  patent  6001882,
Photoactivated  hypericin  and  the  use  thereof.  Further,  on  January  7,  2020,  we  also  were  granted  a  U.S.  patent
(No. 10,526,268) titled “Systems and Methods for Producing Synthetic Hypericin”, which further expanded protection for the
composition of purified synthetic hypericin. This patent is also expected to expire in 2036. Patent protection is also pursued
worldwide with similar patents and expiry dates.

In addition to issued and pending patents, we also have “Orphan Drug” designations for HyBryte™ in the U.S. and the EU for
CTCL,  as  well  as  for  RiVax®  in  the  U.S.  and  EU.  Our  Orphan  Drug  designations  provide  for  seven  years  of  post-approval
marketing exclusivity in the U.S. and ten years exclusivity in Europe. We have pending patent applications for this indication
that, if granted, may extend our anticipated marketing exclusivity beyond the U.S. seven year or EU ten year post-approval
exclusivity provided by Orphan Drug legislation.

In  2013,  we  expanded  our  patent  portfolio  to  include  innate  defense  regulation  through  the  acquisition  of  the  novel  drug
technology,  known  as  SGX94.  By  binding  to  the  pivotal  regulatory  protein  p62,  also  known  as  sequestosome-1,  SGX94
regulates  the  innate  immune  system  to  reduce  inflammation,  eliminate  infection  and  enhance  healing.  As  part  of  the
acquisition,  we  acquired  all  rights,  including  composition  of  matter  patents  for  SGX94  as  well  as  other  analogs  and  crystal
structures  of  SGX94  with  its  protein  target  p62,  including  U.S.  patent  8,124,721  (expiring  2028),  9,416,157  (expiring  2028)
and  8,791,061  (expiring  2029),  both  in  the  U.S.  and  abroad.  SGX94  was  developed  pursuant  to  discoveries  made  by
Professors  B.  Brett  Finlay  and  Robert  Hancock  of  University  of  British  Columbia  (“UBC”).  We  also  have  rights  to  the
background  technology  patents  (U.S.  patent  numbers  7,507,787  [expiring  2024],  7,687,454  [expiring  2026]  and  11,311,598
[expiring 2034]). The U.S. Patent Office has also granted patents titled “Novel Peptides and Analogs for Use in the Treatment
of  Oral  Mucositis.”  The  issued  patents  (U.S.  patent  numbers  9,850.279  and  10,253,068,  both  expiring  in  2034)  claim
therapeutic use of dusquetide and related IDR analogs, and adds to composition of matter claims for dusquetide and related
analogs that have been granted in the U.S. and worldwide.

ThermoVax®  is  the  subject  of  U.S.  patents  8,444,991  (expiring  February  2030)  and  8,808,710  (expiring  March  2028)  both
issued on May 21, 2013 titled “Method of Preparing an Immunologically-Active Adjuvant-Bound Dried Vaccine Composition”
and licensed to us by VitriVax, Inc. ThermoVax® is also U.S. patent application number 15/694.023 filed September 17, 2017
titled  “Thermostable  Vaccine  Compositions  and  Methods  of  Preparing  Same”  and  jointly  invented  by  the  UC  and  the
Company. The patent application and the corresponding foreign filings are pending or granted and they address the use of
adjuvants  in  conjunction  with  vaccines  that  are  formulated  to  resist  thermal  inactivation.  The  license  agreement  covers
thermostable alum-adjuvanted vaccines for ricin toxin and Ebola virus. An additional patent, covering vaccine combinations
such as ricin toxin and anthrax, was filed in 2015 and granted on May 21, 2019 in the U.S. (No. 10,293,041, titled “Multivalent
Stable  Vaccine  Composition  and  Methods  of  Making  Same”)  and  is  expected  to  expire  in  2035.  A  patent  for  unique,
proprietary  compositions  and  methods  directed  to  combinations  of  glycoprotein  antigens  with  nano-emulsion  adjuvants
comprising  sucrose  fatty  acid  esters  prior  to  lyophilization  was  filed  in  2020,  granted  in  2022  and  expiring  in  2040  (No.
11,433,129  titled  “Compositions  and  Methods  of  Manufacturing  Trivalent  Filovirus  Vaccines.”)  Patent  protection  is  also
pursued worldwide with similar patents and expiry dates.

Additional  vaccine  thermostabilization  patents  specific  for  anti-viral  vaccines,  including  filovirus  and  coronavirus  have  been
filed  but  are  not  yet  granted.  If  granted,  expiry  dates  would  range  from  2040  to  2041.  Patent  protection  is  also  pursued
worldwide with similar patents and expiry dates.

HyBryte™ License Agreement

In September 2014, we acquired a worldwide exclusive license agreement with New York University and Yeda Research and
Development  Company  Ltd.  for  the  rights  to  a  novel  PDT  that  utilizes  safe  visible  light  for  activation,  which  we  refer  to  as
HyBryte™.  To  maintain  this  license,  we  are  obligated  to  pay  $25,000  in  annual  license  fees.  In  addition,  we  will  pay  the
licensors: (a) a royalty amount equal to 3% of all net sales of HyBryte™ made directly by us and/or any affiliates; (b) a royalty
amount equal to 2.5% of all net sales of HyBryte™ made by our sublicensees, subject to stated maximums and (c) 20% of all
payments, not based on net sales, received by us from our sublicensees. This license may be terminated by either party upon
notice  of  a  material  breach  by  the  other  party  that  is  not  cured  within  the  applicable  cure  period.  The  exclusive  license
includes rights to several issued U.S. patents, including U.S. patent numbers 6,867,235 and 7,122,518,

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among  other  domestic  and  foreign  patent  applications.  U.S.  Patent  numbers  6,867,235  and  7,122,518  expired  in
January 2020 and is expected to expire in November 2023, respectively.

We acquired the license agreement for HyBryte™ and related intangible assets, including U.S. patent 8,629,302, properties
and  rights  pursuant  to  an  asset  purchase  agreement  with  Hy  Biopharma  Inc.  (“Hy  Biopharma”).  As  consideration  for  the
assets  acquired,  we  initially  paid  $275,000  in  cash  and  issued  12,328  shares  of  common  stock  with  a  market  value  of
$3,750,000,  and  in  March  2020  we  issued  130,413  shares  of  common  stock  at  a  value  of  $5,000,000  (based  upon  an
effective  per  share  price  of  $38.40)  as  a  result  of  HyBryte™  demonstrating  statistical  significant  treatment  response  in  the
Phase 3 clinical trial. Provided the final success-orientated milestone is attained, we will be required to make a payment of up
to $5 million, if and when achieved, payable in our common stock.

SGX94 License Agreements

On  December  18,  2012,  we  acquired  a  first  in  class  drug  technology,  known  as  SGX94  (dusquetide),  representing  a  novel
approach to modulation of the innate immune system. SGX94 is an IDR that regulates the innate immune system to reduce
inflammation, eliminate infection and enhance tissue healing by binding to the pivotal regulatory protein p62, also known as
sequestosome-1.  As  part  of  the  acquisition,  we  acquired  all  rights,  including  composition  of  matter  patents,  preclinical  and
Phase 1 clinical study datasets for SGX94. We also assumed a license agreement with UBC to advance the research and
development  of  the  SGX94  technology.  The  license  agreement  with  UBC  provides  us  with  exclusive  worldwide  rights  to
manufacture, distribute, market sell and/or license or sublicense products derived or developed from this technology. Under
the license agreement we are obligated to pay UBC (i) an annual license maintenance fee of CAD $1,000, and (ii) milestone
payments  which  could  reach  up  to  CAD  $1.2  million.  This  license  agreement  (a)  will  automatically  terminate  if  we  file,  or
become  subject  to  an  involuntary  filing,  for  bankruptcy,  and  (b)  may  be  terminated  by  UBC  in  the  event  of,  among  other
things,  our  insolvency,  dissolution,  grant  of  a  security  interest  in  the  technology  licensed  to  us  pursuant  to  the  license
agreement,  or  material  breach  of  or  failure  to  perform  material  obligations  under  the  license  agreement  or  other  research
agreements between us and UBC.

ThermoVax® License Agreement

On  December  21,  2010,  we  executed  a  worldwide  exclusive  license  agreement  with  the  UC  for  ThermoVax®,  which  is  the
subject  of  U.S.  patent  number  8,444,991  issued  on  May  21,  2013  titled  “Method  of  Preparing  an  Immunologically-Active
Adjuvant-Bound Dried Vaccine Composition.” This patent and its corresponding foreign filings are licensed to us by the UC
and  they  address  the  use  of  adjuvants  in  conjunction  with  vaccines  that  are  formulated  to  resist  thermal  inactivation.  U.S.
Patent  8,444,991  is  expected  to  expire  in  December  2031.  The  license  agreement  also  covers  thermostable  vaccines  for
biodefense as well as other potential vaccine indications. In addition, we, in conjunction with UC, filed domestic and foreign
patent  applications  claiming  priority  back  to  a  provisional  application  filed  on  May  17,  2011  titled:  “Thermostable  Vaccine
Compositions  and  Methods  of  Preparing  Same.”  In  April  2018,  the  UC  delivered  a  notice  of  termination  of  our  license
agreement based upon our failure to achieve one of the development milestones: initiation of the Phase 1 clinical trial of the
heat  stabilization  technology  by  March  31,  2018.  After  negotiating  with  the  UC,  we  and  the  UC  agreed  to  extend  the
termination  date  to  October  31,  2018  in  order  to  allow  us  time  to  agree  upon  a  potential  agreement  that  would  allow  us  to
keep  the  rights  to,  and  to  continue  to  develop,  the  heat  stabilization  technology  or  a  product  candidate  containing  the  heat
stabilization technology in our field of use.

On  October  31,  2018,  in  a  series  of  related  transactions,  (a)  we  and  the  UC  agreed  to  terminate  the  original  license
agreement, (b) the UC and VitriVax executed a worldwide exclusive license agreement for the heat stabilization technology for
all  fields  of  use,  and  (c)  we  and  VitriVax  executed  a  worldwide  exclusive  sublicense  agreement,  which  was  amended  and
restated  in  October  2020,  for  the  heat  stabilization  technology  for  use  in  the  fields  of  ricin  and  Ebola  vaccines.  We  paid  a
$100,000  sublicense  fee  on  the  effective  date  of  the  sublicense  agreement.  Under  the  amended  sublicense  agreement  to
maintain  the  sublicense  we  are  obliged  to  pay  a  minimum  annual  royalty  of  $20,000  until  first  commercial  sale  of  a
sublicensed product, upon which point, we will be required to pay an earned royalty of 2% of net sales subject to a minimum
royalty  of  $50,000  each  year.  We  are  also  required  to  pay  royalties  on  any  sub-sublicense  income  based  on  a
declining percentage of all sub-sublicense income calculated within the contractual period until reaching a minimum of 15%
after two years. In addition, we are required to pay VitriVax milestone fees of: (a) $25,000 upon initiation of a Phase 2 clinical
trial of the sublicensed product, (b) $100,000 upon initiation of a Phase 3 clinical trial of the sublicensed product, (c) $100,000
upon regulatory approval of a sublicensed product, and (d) $1 million upon achieving $10 million in aggregate net sales of a
sublicensed product in the U.S. or equivalent. To date none of these milestones have been met.

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RiVax® License Agreement

In June 2003, we executed a worldwide exclusive option to license patent applications with UTSW for the nasal, pulmonary
and oral uses of a non-toxic ricin vaccine. In June 2004, we entered into a license agreement with UTSW for the injectable
rights to the ricin vaccine and, in October 2004, we negotiated the remaining oral rights to the ricin vaccine. To maintain this
license,  we  are  obligated  to  pay  $50,000  in  annual  license  fees.  Through  this  license,  we  have  rights  to  the  issued  patent
number  7,175,848  titled  “Ricin  A  chain  mutants  lacking  enzymatic  activity  as  vaccines  to  protect  against  aerosolized  ricin.”
This patent includes methods of use and composition claims for RiVax®.

CoVaccine HT™ License Agreement

In April 2020, we executed an agreement for the exclusive worldwide license of CoVaccine HT™, a novel vaccine adjuvant,
from BTG, a division of Boston Scientific Corporation (NYSE: BSX), for the fields of SARS-CoV-2, the cause of COVID-19 and
pandemic flu. The agreement was executed with Protherics Medicines Development, one of the companies that make up the
BTG specialty pharmaceuticals business, which owns the CoVaccine HT™ intellectual property.

Research and Development Expenditures

We  spent  approximately  $3.3  million  and  $7.9  million  in  the  years  ended  December  31,  2023  and  2022,  respectively,  on
research  and  development.  The  amounts  we  spent  on  research  and  development  per  product  during  the  years  ended
December 31, 2023 and 2022 are set forth in “Management’s Discussion and Analysis of Financial Condition and Results of
Operations” in this Annual Report on Form 10-K.

Human Capital

We are committed to a work environment that is welcoming, inclusive and encouraging. To achieve our plans and goals, it is
imperative  that  we  attract  and  retain  top  talent.  In  order  to  do  so,  we  aim  to  have  a  safe  and  encouraging  workplace,  with
opportunities for our employees to grow and develop professionally, supported by strong compensation, benefits, and other
incentives. In addition to competitive base salaries, we offer every full-time employee a cash target bonus, a comprehensive
benefits package and equity compensation.

As of December 31, 2023, we employed a total of 15 persons, including 2 part-time employees and 13 full-time employees,
five  of  whom  are  MDs/PhDs.  In  addition  to  our  employees,  we  contract  with  third-parties  for  the  conduct  of  certain  clinical
development, manufacturing, accounting and administrative activities. We anticipate increasing the number of our employees.
We have no collective bargaining agreements with our employees, and none are represented by labor unions. We consider
our relationships with our employees to be good.

Throughout  the  COVID  19  pandemic,  many  of  our  employees  have  worked  remotely.  In  September  2021  our  employees
returned  to  the  Company’s  facilities  in-person  and  have  maintained  a  hybrid  work  schedule  with  both  in-office  and  remote
hours.

Available Investor Information

We  file  electronically  with  the  Securities  and  Exchange  Commission  (“SEC”)  our  annual  reports  on  Form  10-K,  quarterly
reports  on  Form  10-Q,  current  reports  on  Form  8-K,  and  amendments  to  those  reports  filed  or  furnished  pursuant  to
Section 13(a) of 15(d) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). We make available through
our website, free of charge, copies of these reports as soon as reasonably practicable after we electronically file or furnish
them to the SEC. Our website is located at www.soligenix.com. You can also request copies of such documents by contacting
the company at (609) 538-8200 or sending an email to info@soligenix.com.

Item 1A. Risk factors

An investment in our securities involves a high degree of risk. You should carefully consider the following information about
these  risks,  together  with  the  other  information  about  these  risks  contained  in  this  Annual  Report,  as  well  as  the  other
information  contained  in  this  Annual  Report  generally,  before  deciding  to  buy  our  securities.  Any  of  the  risks  we  describe
below could adversely affect our business, financial condition, operating results or prospects. The market prices for our

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securities could decline if one or more of these risks and uncertainties develop into actual events and you could lose all or
part of your investment. Additional risks and uncertainties that we do not yet know of, or that we currently think are immaterial,
may  also  impair  our  business  operations.  You  should  also  refer  to  the  other  information  contained  in  this  Annual  Report,
including our financial statements and the related notes.

Summary of Risk Factors

Our  business  is  subject  to  a  number  of  risks  and  uncertainties  that  you  should  understand  before  making  an  investment
decision. These risks include, but are not limited to, the following:

Risks Related to our Business

● We have had significant losses and anticipate future losses; if additional funding cannot be obtained, we may reduce
or  discontinue  our  product  development  and  commercialization  efforts  or  not  be  able  to  repay  certain  convertible
notes.

● Our losses from operations, negative cash flows, and shareholders’ deficit as of December 31, 2023 raise substantial
doubt about our ability to continue as a going concern absent obtaining adequate new debt or equity financings.

● The  report  of  our  independent  registered  accounting  firm  on  our  audited  financial  statements  for  the  fiscal  year
ended December 31, 2023 contains an explanatory paragraph relating to our ability to continue as a going concern.

● If we are unable to develop our product candidates, our ability to generate revenues and viability as a company will

be significantly impaired.

● We have no approved products on the market and therefore do not expect to generate any revenues from product

sales in the foreseeable future, if at all.

● Our business is subject to extensive governmental regulation, which can be costly, time consuming and subjects us to

unanticipated delays.

● There may be unforeseen challenges in developing our biodefense products.

● We are dependent on government funding, which is inherently uncertain, for the success of our public health business

segment operations.

● The terms of our loan and security agreement with Pontifax Medison Finance require, and any future debt financing
may require, us to meet certain operating covenants and place restrictions on our operating and financial flexibility.

● If  the  parties  we  depend  on  for  supplying  our  drug  substance  raw  materials  and  certain  manufacturing-related
services do not timely supply these products and services, it may delay or impair our ability to develop, manufacture
and market our products.

● If we are not able to maintain or secure agreements with third parties for pre-clinical and clinical trials of our product
candidates  on  acceptable  terms,  if  these  third  parties  do  not  perform  their  services  as  required,  or  if  these  third
parties fail to timely transfer any regulatory information held by them to us, we may not be able to obtain regulatory
approval for, or commercialize, our product candidates.

● The manufacturing of our products is a highly exacting process, and if we or one of our materials suppliers encounter

problems manufacturing our products, our business could suffer.

● We may use our financial and human resources to pursue a particular research program or product candidate and fail
to capitalize on programs or product candidates that may be more profitable or for which there is a greater likelihood
of success.

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● Even if approved, our products will be subject to extensive post-approval regulation.

● Even if we obtain regulatory approval to market our product candidates, our product candidates may not be accepted

by the market.

● We  do  not  have  extensive  sales  and  marketing  experience  and  our  lack  of  experience  may  restrict  our  success  in

commercializing some of our product candidates.

● Our  products,  if  approved,  may  not  be  commercially  viable  due  to  change  in  health  care  practice  and  third  party

reimbursement limitations.

● Our product candidates may cause serious adverse events or undesirable side effects which may delay or prevent
marketing approval, or, if approval is received, require them to be taken off the market, require them to include safety
warnings or otherwise limit their sales.

● If we fail to obtain or maintain orphan drug exclusivity for our product candidates, our competitors may sell products to

treat the same conditions and our revenue will be reduced.

● Federal and/or state health care reform initiatives could negatively affect our business.

● We may not be able to retain rights licensed to us by third parties to commercialize key products or to develop the

third party relationships we need to develop, manufacture and market our products.

● We may suffer product and other liability claims; we maintain only limited product liability insurance, which may not be

sufficient.

● We may use hazardous chemicals in our business. Potential claims relating to improper handling, storage or disposal

of these chemicals could affect us and be time consuming and costly.

● We may not be able to compete with our larger and better-financed competitors in the biotechnology industry.

● Competition and technological change may make our product candidates and technologies less attractive or obsolete.

● Our  business  could  be  harmed  if  we  fail  to  retain  our  current  personnel  or  if  they  are  unable  to  effectively  run  our

business.

● Instability  and  volatility  in  the  financial  markets  could  have  a  negative  impact  on  our  business,  financial  condition,

results of operations, and cash flows.

● Adverse developments affecting financial institutions such as actual events or concerns involving liquidity, defaults or

non-performance, could adversely affect our operations and liquidity.

● We may not be able to utilize all of our net operating loss carryforwards.

● Global  pathogens  could  have  an  impact  on  financial  markets,  materials  sourcing,  patients,  governments  and

population (e.g. COVID-19).

Risks Related to our Intellectual Property

● We may be unable to commercialize our products if we are unable to protect our proprietary rights, and we may be

liable for significant costs and damages if we face a claim of intellectual property infringement by a third party.

● We may be involved in lawsuits to protect or enforce our patents, which could be expensive and time consuming.

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● If  we  infringe  the  rights  of  third  parties  we  could  be  prevented  from  selling  products,  forced  to  pay  damages,  and

defend against litigation.

Risks Related to Technology and Intellectual Property

● Our strategy includes an increasing dependence on technology in our operations. If any of our key technology fails,

our business could be adversely affected.

● A  cybersecurity  incident  could  negatively  impact  our  business  and  our  relationships  with  our  employees,  service

providers, patients, clinical study sites and government agencies.

Risks Related to our Securities

● The price of our common stock may be highly volatile.

● If we fail to meet Nasdaq’s listing requirements, we could be removed from The Nasdaq Capital Market, which would
limit  the  ability  of  broker-dealers  to  sell  our  securities  and  the  ability  of  shareholders  to  sell  their  securities  in  the
secondary market and negatively impact our ability to raise capital.

● Shareholders may suffer substantial dilution related to issued stock warrants, options and convertible notes.

● Our shares of common stock are thinly traded, so stockholders may be unable to sell at or near ask prices or at all if

they need to sell shares to raise money or otherwise desire to liquidate their shares.

● Our common stock is deemed to be a “penny stock,” which may make it more difficult for investors to sell their shares

due to suitability requirements.

● We do not currently intend to pay dividends on our common stock in the foreseeable future, and consequently, our
stockholders’ ability to achieve a return on their investment will depend on appreciation in the price of our common
stock.

● Upon our dissolution, our stockholders may not recoup all or any portion of their investment.

● The issuance of our common stock pursuant to the terms of the asset purchase agreement with Hy Biopharma may
cause dilution and the issuance of such shares of common stock, or the perception that such issuances may occur,
could cause the price of our common stock to fall.

● Repayment of certain convertible notes, if they are not otherwise converted, will require a significant amount of cash,

and we may not have sufficient cash flow from our business to make payments on our indebtedness.

● The  issuance  of  shares  of  common  stock  upon  conversion  of  certain  convertible  notes  could  substantially  dilute

shareholders’ investments and could impede our ability to obtain additional financing.

● Our Board of Directors can, without stockholder approval, cause preferred stock to be issued on terms that adversely

affect holders of our common stock.

Risks Related to our Business

We have had significant losses and anticipate future losses; if additional funding cannot be obtained, we may reduce
or discontinue our product development and commercialization efforts.

We  have  experienced  significant  losses  since  inception  and,  at  December  31,  2023,  had  an  accumulated  deficit  of
approximately $225.7 million. We expect to incur additional operating losses in the future and expect our cumulative losses to
increase.  As  of  December  31,  2023,  we  had  approximately  $8.4  million  in  cash  and  cash  equivalents  available,  and  as  of
March 8, 2024 we had approximately $7.5 million in cash and cash equivalents available. Without additional funding,

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based on our projected budgetary needs and funding from existing contracts and grants over the next year, we expect to be
able to maintain the current level of our operations into the fourth quarter of 2024.

In September 2014, we entered into a contract with the NIH for the development of RiVax® to protect against exposure to ricin
toxin  that  would  provide  up  to  $24.7  million  of  funding  in  the  aggregate  over  six  years  if  options  to  extend  the  contract  are
exercised  by  the  NIH.  In  2017,  we  were  awarded  two  separate  grants  from  the  NIH  of  approximately  $1.5  million  each  to
support our pivotal Phase 3 trials of HyBryte™ for the treatment of CTCL and SGX942 for the treatment of oral mucositis in
head and neck cancer. In December 2020, we were awarded Direct to Phase II SBIR grant from NIAID of approximately $1.5
million to support manufacture, formulation (including thermostabilization) and characterization of COVID-19 and EVD vaccine
candidates in conjunction with the CoVaccine HT™ adjuvant. Our biodefense grants have an overhead component that allows
us an agency-approved percentage over our incurred costs. We estimate that the overhead component associated with our
existing contracts and grants will fund some fixed costs for direct employees working on these contracts and grants as well as
other administrative costs. As of December 31, 2023, we had approximately $844,000 in awarded grant funding available.

Our  product  candidates  are  positioned  for  or  are  currently  in  clinical  trials,  and  we  have  not  yet  generated  any  significant
revenues  from  sales  or  licensing  of  these  product  candidates.  From  inception  through  December  31,  2023,  we  have
expended  approximately  $119  million  developing  our  current  product  candidates  for  pre-clinical  research  and  development
and  clinical  trials.  We  currently  expect  to  spend  approximately  $5.5  million  for  the  year  ending  December  31,  2024  in
connection with the development of our therapeutic and vaccine products, licenses, employment agreements, and consulting
agreements, of which approximately $0.3 million is expected to be reimbursed through our existing government grants.

We have no control over the resources and funding U.S. government agencies may devote to our programs, which may be
subject  to  periodic  renewal  and  which  generally  may  be  terminated  by  the  government  at  any  time  for  convenience.  Any
significant  reductions  in  the  funding  of  U.S.  government  agencies  or  in  the  funding  areas  targeted  by  our  business  could
materially  and  adversely  affect  our  biodefense  program  and  our  results  of  operations  and  financial  condition.  If  we  fail  to
satisfy our obligations under the government contracts, the applicable Federal Acquisition Regulations allow the government
to terminate the agreement in whole or in part, and we may be required to perform corrective actions, including but not limited
to  delivering  to  the  government  any  incomplete  work.  If  U.S.  government  agencies  do  not  exercise  future  funding  options
under the contracts or grants, terminate the funding or fail to perform their responsibilities under the agreements or grants, it
could materially impact our biodefense program and our financial results.

Unless  and  until  we  are  able  to  generate  sales  or  licensing  revenue  from  one  of  our  product  candidates,  we  will  require
additional funding to meet these commitments, sustain our research and development efforts, provide for future clinical trials,
and continue our operations. There can be no assurance we can raise such funds. If additional funds are raised through the
issuance  of  equity  securities,  stockholders  may  experience  dilution  of  their  ownership  interests,  and  the  newly  issued
securities may have rights superior to those of the common stock. If additional funds are raised by the issuance of debt, we
may be subject to limitations on our operations. If we cannot raise such additional funds, we may have to delay or stop some
or all of our drug development programs.

Our losses from operations, negative cash flows, and shareholders' deficit as of December 31, 2023 raise substantial
doubt about our ability to continue as a going concern absent obtaining adequate new debt or equity financings.

We have concluded that substantial doubt exists about our ability to continue as a going concern for the 12 months following
the issuance of the financial statements included in this Annual Report on Form 10-K. As of December 31, 2023, we had cash
and cash equivalents of approximately $8.4 million and current liabilities of approximately $6.2 million. As of the issuance date
of these financial statements, we believe that we have sufficient resources available to support our development activities and
business  operations  and  timely  satisfy  our  obligations  as  they  come  due  into  the  fourth  quarter  of  2024.  We  do  not  have
sufficient cash and cash equivalents as of the date of filing this Annual Report on Form 10-K to support our operations for at
least the 12 months following the issuance of the financial statements.

To  alleviate  the  conditions  that  raise  substantial  doubt  about  our  ability  to  continue  as  a  going  concern,  we  plan  to  secure
additional capital, potentially through a combination of public or private equity offerings and strategic transactions, including
potential  alliances  and  drug  product  collaborations,  securing  additional  proceeds  from  government  contract  and  grant
programs, and potentially amending the loan agreement with Pontifax Medison Finance to reduce the conversion price in

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order to allow for conversion of a portion of the debt which will reduce our liabilities; however, none of these alternatives are
committed  at  this  time.  There  can  be  no  assurance  that  we  will  be  successful  in  obtaining  sufficient  funding  on  terms
acceptable to us to fund continuing operations, if at all, identify and enter into any strategic transactions that will provide the
capital  that  we  will  require  or  achieve  the  other  strategies  to  alleviate  the  conditions  that  raise  substantial  doubt  about  our
ability  to  continue  as  a  going  concern.  If  none  of  these  alternatives  are  available,  or  if  available,  are  not  available  on
satisfactory terms, we will not have sufficient cash resources and liquidity to fund our business operations for at least the 12
months  following  the  date  the  financial  statements  are  issued.  The  failure  to  obtain  sufficient  capital  on  acceptable  terms
when needed may require us to delay, limit, or eliminate the development of business opportunities and our ability to achieve
our  business  objectives  and  our  competitiveness,  and  our  business,  financial  condition,  and  results  of  operations  will  be
materially  adversely  affected.  In  addition,  market  instability,  including  as  a  result  of  geopolitical  instability,  may  reduce  our
ability to access capital, which could negatively affect our liquidity and ability to continue as a going concern. In addition, the
perception that we may not be able to continue as a going concern may cause others to choose not to deal with us due to
concerns about our ability to meet our contractual obligations.

The  report  of  our  independent  registered  accounting  firm  on  our  audited  financial  statements  for  the  fiscal  year
ended December 31, 2023 contains an explanatory paragraph relating to our ability to continue as a going concern.

The  auditor’s  opinion  on  our  audited  financial  statements  for  the  year  ended  December  31,  2023  includes  an  explanatory
paragraph  stating  that  we  have  incurred  recurring  losses  from  operations  that  raise  substantial  doubt  about  our  ability  to
continue as a going concern. While we believe that we will be able to obtain the capital we need to continue our operations,
there can be no assurances that we will be successful in these efforts or will be able to resolve our liquidity issues or eliminate
our operating losses. If we are unable to obtain sufficient funding, we would need to significantly reduce our operating plans
and  curtail  some  or  all  of  our  development  efforts.  Accordingly,  our  business,  prospects,  financial  condition,  and  results  of
operations  will  be  materially  and  adversely  affected,  and  we  may  be  unable  to  continue  as  a  going  concern.  If  we  seek
additional  financing  to  fund  our  business  activities  in  the  future  and  there  remains  substantial  doubt  about  our  ability  to
continue  as  a  going  concern,  investors  or  other  financing  sources  may  be  unwilling  to  provide  additional  funding  on
commercially reasonable terms or at all.

If we are unable to develop our product candidates, our ability to generate revenues and viability as a company will
be significantly impaired.

In order to generate revenues and profits, our organization must, along with corporate partners and collaborators, positively
research, develop and commercialize our technologies or product candidates. Our current product candidates are in various
stages of clinical and pre-clinical development and will require significant further funding, research, development, pre-clinical
and/or  clinical  testing,  regulatory  approval  and  commercialization,  and  are  subject  to  the  risks  of  failure  inherent  in  the
development of products based on innovative or novel technologies. Specifically, each of the following is possible with respect
to any of our product candidates:

● we may not be able to maintain our current research and development schedules;

● we may be unable to secure procurement contracts on beneficial economic terms or at all from the U.S. government

or others for our biodefense products;

● we may encounter problems in clinical trials; or

● the technology or product may be found to be ineffective or unsafe, or may fail to obtain marketing approval.

If any of the risks set forth above occur, or if we are unable to obtain the necessary regulatory approvals as discussed below,
we  may  be  unable  to  develop  our  technologies  and  product  candidates  and  our  business  will  be  seriously  harmed.
Furthermore,  for  reasons  including  those  set  forth  below,  we  may  be  unable  to  commercialize  or  receive  royalties  from  the
sale of any other technology we develop, even if it is shown to be effective, if:

● it is not economical or the market for the product does not develop or diminishes;

● we are not able to enter into arrangements or collaborations to manufacture and/or market the product;

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● the product is not eligible for third-party reimbursement from government or private insurers;

● others hold proprietary rights that preclude us from commercializing the product;

● we are not able to manufacture the product reliably;

● others have brought to market similar or superior products; or

● the product has undesirable or unintended side effects that prevent or limit its commercial use.

We  expect  a  number  of  factors  to  cause  our  operating  results  to  fluctuate  on  a  quarterly  and  annual  basis,  which
may make it difficult to predict our future performance.

We  are  a  late-stage  biopharmaceutical  company.  Our  operations  to  date  have  been  primarily  limited  to  developing  our
technology  and  undertaking  pre-clinical  studies  and  clinical  trials  of  our  product  candidates  in  our  two  active  business
segments, Specialized BioTherapeutics and Public Health Solutions. We have not yet obtained regulatory approvals for any of
our product candidates. Consequently, any predictions made about our future success or viability may not be as accurate as
they could be if we had commercialized products. Our financial condition has varied significantly in the past and will continue
to fluctuate from quarter-to-quarter or year-to-year due to a variety of factors, many of which are beyond our control. Factors
relating  to  our  business  that  may  contribute  to  these  fluctuations  include  other  factors  described  elsewhere  in  this  Annual
Report and also include:

● our ability to obtain additional funding to develop our product candidates;

● our ability to repay existing debt in accordance with its terms;

● delays in the commencement, enrollment and timing of clinical trials;

● the success of our product candidates through all phases of clinical development;

● any delays in regulatory review and approval of product candidates in clinical development;

● our ability to obtain and maintain regulatory approval for our product candidates in the U.S. and foreign jurisdictions;

● potential side effects of our product candidates that could delay or prevent commercialization, limit the indications for
any approved drug, require the establishment of risk evaluation and mitigation strategies, or cause an approved drug
to be taken off the market;

● our dependence on third-party contract manufacturing organizations to supply or manufacture our products;

● our dependence on contract research organizations to conduct our clinical trials;

● our ability to establish or maintain collaborations, licensing or other arrangements;

● market acceptance of our product candidates;

● our ability to establish and maintain an effective sales and marketing infrastructure, either through the creation of a

commercial infrastructure or through strategic collaborations;

● competition from existing products or new products that may emerge;

● the ability of patients or healthcare providers to obtain coverage of or sufficient reimbursement for our products;

● our ability to discover and develop additional product candidates;

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● our ability and our licensors’ abilities to successfully obtain, maintain, defend and enforce intellectual property rights

important to our business;

● our ability to attract and retain key personnel to manage our business effectively;

● our ability to build our finance infrastructure and improve our accounting systems and controls;

● potential product liability claims;

● potential liabilities associated with hazardous materials; and

● our ability to obtain and maintain adequate insurance policies.

Accordingly,  the  results  of  any  quarterly  or  annual  periods  should  not  be  relied  upon  as  indications  of  future  operating
performance.

We have no approved products on the market and therefore do not expect to generate any revenues from product
sales in the foreseeable future, if at all.

To  date,  we  have  no  approved  product  on  the  market  and  have  not  generated  any  significant  product  revenues.  We  have
funded our operations primarily from sales of our securities and from government contracts and grants. We have not received,
and  do  not  expect  to  receive  for  at  least  the  next  several  years,  if  at  all,  any  revenues  from  the  commercialization  of  our
product  candidates.  To  obtain  revenues  from  sales  of  our  product  candidates,  we  must  succeed,  either  alone  or  with  third
parties,  in  developing,  obtaining  regulatory  approval  for,  manufacturing  and  marketing  drugs  with  commercial  potential  or
successfully obtain government procurement or stockpiling agreements. We may never succeed in these activities, and we
may not generate sufficient revenues to continue our business operations or achieve profitability.

Our business is subject to extensive governmental regulation, which can be costly, time consuming and subjects us
to unanticipated delays.

Our  business  is  subject  to  very  stringent  federal,  foreign,  state  and  local  government  laws  and  regulations,  including  the
Federal Food, Drug and Cosmetic Act, the Environmental Protection Act, the Occupational Safety and Health Act, and state
and local counterparts to these acts. These laws and regulations may be amended, additional laws and regulations may be
enacted, and the policies of the FDA and other regulatory agencies may change.

The regulatory process applicable to our products requires pre-clinical and clinical testing of any product to establish its safety
and efficacy. This testing can take many years, is uncertain as to outcome, and requires the expenditure of substantial capital
and  other  resources.  We  estimate  that  the  clinical  trials  of  our  product  candidates  that  we  have  planned  will  take  at  least
several years to complete. Furthermore, failure can occur at any stage of the trials, and we could encounter problems that
cause us to abandon or repeat clinical trials. Favorable results in early studies or trials, if any, may not be repeated in later
studies  or  trials.  Even  if  our  clinical  trials  are  initiated  and  completed  as  planned,  we  cannot  be  certain  that  the  results  will
support our product candidate claims. Success in preclinical testing, Phase 1 and Phase 2 clinical trials does not ensure that
later Phase 2 or Phase 3 clinical trials will be successful. In addition, we, the FDA or other regulatory authorities may suspend
clinical  trials  at  any  time  if  it  appears  that  we  are  exposing  participants  to  unacceptable  health  risks  or  the  FDA  or  other
regulatory authorities find deficiencies in our submissions or conduct of our trials.

We  may  not  be  able  to  obtain,  or  we  may  experience  difficulties  and  delays  in  obtaining,  necessary  domestic  and  foreign
governmental clearances and approvals to market a product (for example, the FDA may not recognize fast track designation
upon  an  NDA  submission,  resulting  in  no  priority  review  and  subjecting  us  to  longer  potential  review  times  than  originally
anticipated).  Also,  even  if  regulatory  approval  of  a  product  is  granted,  that  approval  may  entail  limitations  on  the  indicated
uses for which the product may be marketed.

Following any regulatory approval, a marketed product and its manufacturer are subject to continual regulatory review. Later
discovery  of  problems  with  a  product  or  manufacturer  may  result  in  restrictions  on  such  product  or  manufacturer.  These
restrictions may include product recalls and suspension or withdrawal of the marketing approval for the product. Furthermore,
the advertising, promotion and export, among other things, of a product are subject to extensive regulation by

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governmental authorities in the U.S. and other countries. If we fail to comply with applicable regulatory requirements, we may
be  subject  to  fines,  suspension  or  withdrawal  of  regulatory  approvals,  product  recalls,  seizure  of  products,  operating
restrictions and/or criminal prosecution.

There may be unforeseen challenges in developing our biodefense products.

For  development  of  biodefense  vaccines  and  therapeutics,  the  FDA  has  instituted  policies  that  are  expected  to  result  in
accelerated approval. This includes approval for commercial use using the results of animal efficacy trials, rather than efficacy
trials in humans, referred to as the Animal Rule. However, we will still have to establish that the vaccines we are developing
are safe in humans at doses that are correlated with the beneficial effect in animals. Such clinical trials will also have to be
completed in distinct populations that are subject to the countermeasures; for instance, the very young and the very old, and
in pregnant women, if the countermeasure is to be licensed for civilian use. Other agencies will have an influence over the risk
benefit scenarios for deploying the countermeasures and in establishing the number of doses utilized in the Strategic National
Stockpile.  We  may  not  be  able  to  sufficiently  demonstrate  the  animal  correlation  to  the  satisfaction  of  the  FDA,  as  these
correlates are difficult to establish and are often unclear. Invocation of the Animal Rule may raise issues of confidence in the
model  systems  even  if  the  models  have  been  validated.  For  many  of  the  biological  threats,  the  animal  models  are  not
available  and  we  may  have  to  develop  the  animal  models,  a  time-consuming  research  effort.  There  are  few  historical
precedents, or recent precedents, for the development of new countermeasures for bioterrorism agents. Despite the Animal
Rule,  the  FDA  may  require  large  clinical  trials  to  establish  safety  and  immunogenicity  before  licensure  and  it  may  require
safety and immunogenicity trials in additional populations. Approval of biodefense products may be subject to post-marketing
studies, and could be restricted in use in only certain populations. The government’s biodefense priorities can change, which
could  adversely  affect  the  commercial  opportunity  for  the  products  we  are  developing.  Further,  other  countries  have  not,  at
this  time,  established  criteria  for  review  and  approval  of  these  types  of  products  outside  their  normal  review  process,  i.e.,
there is no Animal Rule equivalent, and consequently there can be no assurance that we will be able to make a submission
for marketing approval in foreign countries based on such animal data.

Additionally, few facilities in the U.S. and internationally have the capability to test animals with ricin, or otherwise assist us in
qualifying the requisite animal models. We have to compete with other biodefense companies for access to this limited pool of
highly  specialized  resources.  We  therefore  may  not  be  able  to  secure  contracts  to  conduct  the  testing  in  a  predictable
timeframe or at all.

We  are  dependent  on  government  funding,  which  is  inherently  uncertain,  for  the  success  of  our  biodefense
operations.

We  are  subject  to  risks  specifically  associated  with  operating  in  the  biodefense  industry,  which  is  a  new  and  unproven
business area. We do not anticipate that a significant commercial market will develop for our biodefense products. Because
we  anticipate  that  the  principal  potential  purchasers  of  these  products,  as  well  as  potential  sources  of  research  and
development funds, will be the U.S. government and governmental agencies, the success of our biodefense division will be
dependent  in  large  part  upon  government  spending  decisions.  The  funding  of  government  programs  is  dependent  on
budgetary limitations, congressional appropriations and administrative allotment of funds, all of which are inherently uncertain
and may be affected by changes in U.S. government policies resulting from various political and military developments. Our
receipt of government funding is also dependent on our ability to adhere to the terms and provisions of the original grant and
contract documents and other regulations. We can provide no assurance that we will receive or continue to receive funding for
grants and contracts we have been awarded. The loss of government funds could have a material adverse effect on our ability
to progress our biodefense business.

The terms of our loan and security agreement with Pontifax Medison Finance require, and any future debt financing
may require, us to meet certain operating covenants and place restrictions on our operating and financial flexibility.

In December 2020, we entered into a loan and security agreement with Pontifax Medison Finance (the “Loan and Security
Agreement”), that is secured by a lien covering substantially all of our assets, other than our intellectual property and licenses
for intellectual property. The Loan and Security Agreement contains customary affirmative and negative covenants and events
of  default.  Affirmative  covenants  include,  among  others,  covenants  requiring  us  to  protect  and  maintain  our  intellectual
property  and  comply  with  all  applicable  laws,  deliver  certain  financial  reports,  and  maintain  insurance  coverage.  Negative
covenants  include,  among  others,  covenants  restricting  us  from  transferring  any  material  portion  of  our  assets,  incurring
additional indebtedness, engaging in mergers or acquisitions, changing foreign subsidiary voting rights, repurchasing shares,
paying dividends or making other distributions, making certain investments, and creating other liens

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on our assets, including our intellectual property, in each case subject to customary exceptions. If we raise any additional debt
financing, the terms of such additional debt could further restrict our operating and financial flexibility. These restrictions may
include, among other things, limitations on borrowing and specific restrictions on the use of our assets, as well as prohibitions
on our ability to create liens, pay dividends, redeem capital stock or make investments. If we default under the terms of the
Loan and Security Agreement or any future debt facility, the lender may accelerate all of our repayment obligations and take
control  of  our  pledged  assets,  potentially  requiring  us  to  renegotiate  our  agreement  on  terms  less  favorable  to  us  or  to
immediately cease operations. Further, if we are liquidated, the lender’s right to repayment would be senior to the rights of the
holders  of  our  common  stock.  The  lender  could  declare  a  default  upon  the  occurrence  of  any  event  that  it  interprets  as  a
material adverse effect as defined under the Loan and Security Agreement or based upon our insolvency. Any declaration by
the  lender  of  an  event  of  default  could  significantly  harm  our  business  and  prospects  and  could  cause  the  price  of  our
common stock to decline.

If  the  parties  we  depend  on  for  supplying  our  drug  substance  raw  materials  and  certain  manufacturing-related
services do not timely supply these products and services, it may delay or impair our ability to develop, manufacture
and market our products. We do not have or anticipate having internal manufacturing capabilities.

We  rely  on  suppliers  for  our  drug  substance  raw  materials  and  third  parties  for  certain  manufacturing-related  services  to
produce material that meets appropriate content, quality and stability standards, which material will be used in clinical trials of
our  products  and,  after  approval,  for  commercial  distribution.  To  succeed,  clinical  trials  require  adequate  supplies  of  drug
substance  and  drug  product,  which  may  be  difficult  or  uneconomical  to  procure  or  manufacture.  We  and  our  suppliers  and
vendors may not be able to (i) produce our drug substance or drug product to appropriate standards for use in clinical studies,
(ii) perform under any definitive manufacturing, supply or service agreements with us or (iii) remain in business for a sufficient
time to be able to develop, produce, secure regulatory approval of and market our product candidates. If we do not maintain
important manufacturing and service relationships, we may fail to find a replacement supplier or required vendor or develop
our own manufacturing capabilities which could delay or impair our ability to obtain regulatory approval for our products and
substantially increase our costs or deplete profit margins, if any. If we do find replacement manufacturers and vendors, we
may not be able to enter into agreements with them on terms and conditions favorable to us and, there could be a substantial
delay before a new facility could be qualified and registered with the FDA and foreign regulatory authorities.

We rely on third parties for pre-clinical and clinical trials of our product candidates and, in some cases, to maintain
regulatory  files  for  our  product  candidates.  If  we  are  not  able  to  maintain  or  secure  agreements  with  such  third
parties on acceptable terms, if these third parties do not perform their services as required, or if these third parties
fail  to  timely  transfer  any  regulatory  information  held  by  them  to  us,  we  may  not  be  able  to  obtain  regulatory
approval for, or commercialize, our product candidates.

We rely on academic institutions, hospitals, clinics and other third-party collaborators for preclinical and clinical trials of our
product  candidates.  Although  we  monitor,  support,  and/or  oversee  our  pre-clinical  and  clinical  trials,  because  we  do  not
conduct  these  trials  ourselves,  we  have  less  control  over  the  timing  and  cost  of  these  studies  and  the  ability  to  recruit  trial
subjects  than  if  we  conducted  these  trials  wholly  by  ourselves.  If  we  are  unable  to  maintain  or  enter  into  agreements  with
these third parties on acceptable terms, or if any such engagement is terminated, we may be unable to enroll patients on a
timely  basis  or  otherwise  conduct  our  trials  in  the  manner  we  anticipate.  In  addition,  there  is  no  guarantee  that  these  third
parties  will  devote  adequate  time  and  resources  to  our  studies  or  perform  as  required  by  a  contract  or  in  accordance  with
regulatory  requirements,  including  maintenance  of  clinical  trial  information  regarding  our  product  candidates.  If  these  third
parties fail to meet expected deadlines, fail to timely transfer to us any regulatory information, fail to adhere to protocols or fail
to act in accordance with regulatory requirements or our agreements with them, or if they otherwise perform in a substandard
manner or in a way that compromises the quality or accuracy of their activities or the data they obtain, then preclinical and/or
clinical trials of our product candidates may be extended, delayed or terminated, or our data may be rejected by the FDA or
regulatory agencies.

The  manufacturing  of  our  products  is  a  highly  exacting  process,  and  if  we  or  one  of  our  materials  suppliers
encounter problems manufacturing our products, our business could suffer.

The  FDA  and  foreign  regulators  require  manufacturers  to  register  manufacturing  facilities.  The  FDA  and  foreign  regulators
also inspect these facilities to confirm compliance with current Good Manufacturing Practice (“cGMP”) or similar requirements
that  the  FDA  or  foreign  regulators  establish.  We,  or  our  materials  suppliers,  may  face  manufacturing  or  quality  control
problems causing product production and shipment delays or a situation where we or the supplier may not be able

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to  maintain  compliance  with  the  FDA’s  cGMP  requirements,  or  those  of  foreign  regulators,  necessary  to  continue
manufacturing  our  drug  substance.  Any  failure  to  comply  with  cGMP  requirements  or  other  FDA  or  foreign  regulatory
requirements could adversely affect our clinical research activities and our ability to market and develop our products.

We may use our financial and human resources to pursue a particular research program or product candidate and
fail  to  capitalize  on  programs  or  product  candidates  that  may  be  more  profitable  or  for  which  there  is  a  greater
likelihood of success.

Because  we  have  limited  financial  and  human  resources,  we  are  currently  focusing  on  the  regulatory  approval  of  certain
product  candidates.  As  a  result,  we  may  forego  or  delay  pursuit  of  opportunities  with  other  product  candidates  or  for  other
indications  that  later  prove  to  have  greater  commercial  potential.  Our  resource  allocation  decisions  may  cause  us  to  fail  to
capitalize  on  viable  commercial  products  or  profitable  market  opportunities.  Our  spending  on  existing  and  future  product
candidates  for  specific  indications  may  not  yield  any  commercially  viable  products.  If  we  do  not  accurately  evaluate  the
commercial  potential  or  target  market  for  a  particular  product  candidate,  we  may  relinquish  valuable  rights  to  that  product
candidate  through  strategic  alliance,  licensing  or  other  royalty  arrangements  in  cases  in  which  it  would  have  been  more
advantageous for us to retain sole development and commercialization rights to such product candidate, or we may allocate
internal resources to a product candidate in an area in which it would have been more advantageous to enter into a partnering
arrangement.

Even if approved, our products will be subject to extensive post-approval regulation.

Once  a  product  is  approved,  numerous  post-approval  requirements  apply.  Among  other  things,  the  holder  of  an  approved
NDA  is  subject  to  periodic  and  other  FDA  monitoring  and  reporting  obligations,  including  obligations  to  monitor  and  report
adverse  events  and  instances  of  the  failure  of  a  product  to  meet  the  specifications  in  the  NDA.  Application  holders  must
submit  new  or  supplemental  applications  and  obtain  FDA  approval  for  certain  changes  to  the  approved  product,  product
labeling,  or  manufacturing  process.  Application  holders  must  also  submit  advertising  and  other  promotional  material  to  the
FDA and report on ongoing clinical trials.

Depending on the circumstances, failure to meet these post-approval requirements can result in criminal prosecution, fines,
injunctions,  recall  or  seizure  of  products,  total  or  partial  suspension  of  production,  denial  or  withdrawal  of  pre-marketing
product approvals, or refusal to allow us to enter into supply contracts, including government contracts. In addition, even if we
comply with FDA and other requirements, new information regarding the safety or effectiveness of a product could lead the
FDA to modify or withdraw product approval.

Even  if  we  obtain  regulatory  approval  to  market  our  product  candidates,  our  product  candidates  may  not  be
accepted by the market.

Even if the FDA approves one or more of our product candidates, physicians and patients may not accept it or use it. Even if
physicians  and  patients  would  like  to  use  our  products,  our  products  may  not  gain  market  acceptance  among  healthcare
payors  such  as  managed  care  formularies,  insurance  companies  or  government  programs  such  as  Medicare  or  Medicaid.
Acceptance and use of our products will depend upon a number of factors including: perceptions by members of the health
care  community,  including  physicians,  about  the  safety  and  effectiveness  of  our  drug  product;  cost-effectiveness  of  our
product  relative  to  competing  products;  availability  of  reimbursement  for  our  product  from  government  or  other  healthcare
payers; and effectiveness of marketing and distribution efforts by us and our licensees and distributors, if any.

The degree of market acceptance of any product that we develop will depend on a number of factors, including:

● cost-effectiveness;

● the  safety  and  effectiveness  of  our  products,  including  any  significant  potential  side  effects,  as  compared  to

alternative products or treatment methods;

● the timing of market entry as compared to competitive products;

● the rate of adoption of our products by doctors and nurses;

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● product labeling or product insert required by the FDA for each of our products;

● reimbursement policies of government and third-party payors;

● effectiveness  of  our  sales,  marketing  and  distribution  capabilities  and  the  effectiveness  of  such  capabilities  of  our

collaborative partners, if any; and

● unfavorable publicity concerning our products or any similar products.

Our  product  candidates,  if  successfully  developed,  will  compete  with  a  number  of  products  manufactured  and  marketed  by
major  pharmaceutical  companies,  biotechnology  companies  and  manufacturers  of  generic  drugs.  Our  products  may  also
compete with new products currently under development by others. Physicians, patients, third-party payors and the medical
community may not accept and utilize any of our product candidates. If our products do not achieve market acceptance, we
will not be able to generate significant revenues or become profitable.

Because we expect sales of our current product candidates, if approved, to generate substantially all of our product revenues
for the foreseeable future, the failure of these products to find market acceptance would harm our business and could require
us to seek additional financing.

We  do  not  have  extensive  sales  and  marketing  experience  and  our  lack  of  experience  may  restrict  our  success  in
commercializing some of our product candidates.

We do not have extensive experience in marketing or selling pharmaceutical products whether in the U.S. or internationally.
To  obtain  the  expertise  necessary  to  successfully  market  and  sell  any  of  our  products,  the  development  of  our  own
commercial  infrastructure  and/or  collaborative  commercial  arrangements  and  partnerships  will  be  required.  Our  ability  to
make  that  investment  and  also  execute  our  current  operating  plan  is  dependent  on  numerous  factors,  including,  the
performance of third party collaborators with whom we may contract.

Our  products,  if  approved,  may  not  be  commercially  viable  due  to  change  in  health  care  practice  and  third  party
reimbursement limitations.

Initiatives  to  reduce  the  federal  deficit  and  to  change  health  care  delivery  are  increasing  cost-containment  efforts.  We
anticipate  that  Congress,  state  legislatures  and  the  private  sector  will  continue  to  review  and  assess  alternative  benefits,
controls on health care spending through limitations on the growth of private health insurance premiums and Medicare and
Medicaid  spending,  price  controls  on  pharmaceuticals,  and  other  fundamental  changes  to  the  health  care  delivery  system.
Any  changes  of  this  type  could  negatively  impact  the  commercial  viability  of  our  products,  if  approved.  Our  ability  to
successfully  commercialize  our  product  candidates,  if  they  are  approved,  will  depend  in  part  on  the  extent  to  which
appropriate  reimbursement  codes  and  authorized  cost  reimbursement  levels  of  these  products  and  related  treatment  are
obtained  from  governmental  authorities,  private  health  insurers  and  other  organizations,  such  as  health  maintenance
organizations.  In  the  absence  of  national  Medicare  coverage  determination,  local  contractors  that  administer  the  Medicare
program  may  make  their  own  coverage  decisions.  Any  of  our  product  candidates,  if  approved  and  when  commercially
available,  may  not  be  included  within  the  then  current  Medicare  coverage  determination  or  the  coverage  determination  of
state  Medicaid  programs,  private  insurance  companies  or  other  health  care  providers.  In  addition,  third-party  payers  are
increasingly challenging the necessity and prices charged for medical products, treatments and services.

Our product candidates may cause serious adverse events or undesirable side effects which may delay or prevent
marketing approval, or, if approval is received, require them to be taken off the market, require them to include safety
warnings or otherwise limit their sales.

Serious  adverse  events  or  undesirable  side  effects  from  any  of  our  product  candidates  could  arise  either  during  clinical
development or, if approved, after the approved product has been marketed. The results of future clinical trials may show that
our product candidates cause serious adverse events or undesirable side effects, which could interrupt, delay or halt clinical
trials, resulting in delay of, or failure to obtain, marketing approval from the FDA and other regulatory authorities.

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If any of our product candidates cause serious adverse events or undesirable side effects:

● regulatory  authorities  may  impose  a  clinical  hold  which  could  result  in  substantial  delays  and  adversely  impact  our

ability to continue development of the product;

● regulatory  authorities  may  require  the  addition  of  labeling  statements,  specific  warnings,  a  contraindication  or  field

alerts to physicians and pharmacies;

● we  may  be  required  to  change  the  way  the  product  is  administered,  conduct  additional  clinical  trials  or  change  the

labeling of the product;

● we may be required to implement a risk minimization action plan, which could result in substantial cost increases and

have a negative impact on our ability to commercialize the product;

● we may be required to limit the patients who can receive the product;

● we may be subject to limitations on how we promote the product;

● sales of the product may decrease significantly;

● regulatory authorities may require us to take our approved product off the market;

● we may be subject to litigation or product liability claims; and

● our reputation may suffer.

Any  of  these  events  could  prevent  us  from  achieving  or  maintaining  market  acceptance  of  the  affected  product  or  could
substantially  increase  commercialization  costs  and  expenses,  which  in  turn  could  delay  or  prevent  us  from  generating
significant revenues from the sale of our products.

If we fail to obtain or maintain orphan drug exclusivity for our product candidates, our competitors may sell products
to treat the same conditions and our revenue will be reduced.

Under the Orphan Drug Act, the FDA may designate a product as an orphan drug if it is intended to treat a rare disease or
condition, defined as a patient population of fewer than 200,000 in the U.S., or a patient population greater than 200,000 in
the  U.S.  where  there  is  no  reasonable  expectation  that  the  cost  of  developing  the  drug  will  be  recovered  from  sales  in  the
U.S. In the EU, the European Medicines Agency’s Committee for Orphan Medicinal Products grants orphan drug designation
to promote the development of products that are intended for the diagnosis, prevention, or treatment of a life-threatening or
chronically debilitating condition affecting not more than five in 10,000 persons in the EU. Additionally, designation is granted
for  products  intended  for  the  diagnosis,  prevention,  or  treatment  of  a  life-threatening,  seriously  debilitating  or  serious  and
chronic  condition  when,  without  incentives,  it  is  unlikely  that  sales  of  the  drug  in  the  EU  would  be  sufficient  to  justify  the
necessary  investment  in  developing  the  drug  or  biological  product  or  where  there  is  no  satisfactory  method  of  diagnosis,
prevention,  or  treatment,  or,  if  such  a  method  exists,  the  medicine  must  be  of  significant  benefit  to  those  affected  by  the
condition.

In  the  U.S.,  orphan  drug  designation  entitles  a  party  to  financial  incentives  such  as  opportunities  for  grant  funding  towards
clinical  trial  costs,  tax  advantages,  and  user-fee  waivers.  In  addition,  if  a  product  receives  the  first  FDA  approval  for  the
indication for which it has orphan designation, the product is entitled to orphan drug exclusivity, which means the FDA may
not  approve  any  other  application  to  market  the  same  drug  for  the  same  indication  for  a  period  of  seven  years,  except  in
limited  circumstances,  such  as  a  showing  of  clinical  superiority  over  the  product  with  orphan  exclusivity  or  where  the
manufacturer is unable to assure sufficient product quantity. In the EU, orphan drug designation entitles a party to financial
incentives  such  as  reduction  of  fees  or  fee  waivers  and  ten  years  of  market  exclusivity  following  drug  or  biological  product
approval. This period may be reduced to six years if the orphan drug designation criteria are no longer met, including where it
is shown that the product is sufficiently profitable not to justify maintenance of market exclusivity.

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Even though we have orphan drug designation for HyBryte™ in the U.S. and Europe, and RiVax® in the U.S., we may not be
the first to obtain marketing approval for any particular orphan indication due to the uncertainties associated with developing
drugs or biologic products. Further, even if we obtain orphan drug exclusivity for a product, that exclusivity may not effectively
protect  the  product  from  competition  because  different  drugs  with  different  active  moieties  can  be  approved  for  the  same
condition. Absent patent or other intellectual property protection, even after an orphan drug is approved, the FDA or European
Medicines Agency may subsequently approve the same drug with the same active moiety for the same condition if the FDA or
European Medicines Agency concludes that the later drug is safer, more effective, or makes a major contribution to patient
care.

Federal and/or state health care reform initiatives could negatively affect our business.

The  availability  of  reimbursement  by  governmental  and  other  third-party  payers  affects  the  market  for  any  pharmaceutical
product. These third-party payers continually attempt to contain or reduce the costs of healthcare. There have been a number
of legislative and regulatory proposals to change the healthcare system and further proposals are likely. Medicare’s policies
may decrease the market for our products. Significant uncertainty exists with respect to the reimbursement status of newly
approved healthcare products.

Third-party  payers  are  increasingly  challenging  the  price  and  cost-effectiveness  of  medical  products  and  services.  Once
approved, we might not be able to sell our products profitably or recoup the value of our investment in product development if
reimbursement is unavailable or limited in scope, particularly for product candidates addressing small patient populations. On
July 15, 2008, the Medicare Improvements for Patients and Providers Act of 2008 became law with a number of Medicare and
Medicaid  reforms  to  establish  a  bundled  Medicare  payment  rate  that  includes  services  and  drug/labs  that  were  separately
billed at that time. Bundling initiatives that have been implemented in other healthcare settings have occasionally resulted in
lower utilization of services that had not previously been a part of the bundled payment.

In addition, in some foreign countries, the proposed pricing for a drug must be approved before it may be lawfully marketed.
The  requirements  governing  drug  pricing  vary  widely  from  country  to  country.  We  expect  that  there  will  continue  to  be  a
number  of  U.S.  federal  and  state  proposals  to  implement  governmental  pricing  controls.  While  we  cannot  predict  whether
such legislative or regulatory proposals will be adopted, the adoption of such proposals could have a material adverse effect
on our business, financial condition and profitability.

We may not be able to retain rights licensed to us by third parties to commercialize key products or to develop the
third party relationships we need to develop, manufacture and market our products.

We  currently  rely  on  license  agreements  from  New  York  University,  Yeda  Research  and  Development  Company  Ltd.,  the
University of Texas Southwestern Medical Center, the University of British Columbia, and George B. McDonald, MD as well as
sublicense agreement from VitriVax for the rights to commercialize key product candidates. We may not be able to retain the
rights granted under these agreements or negotiate additional agreements on reasonable terms, if at all. Our existing license
agreements impose, and we expect that future license agreements will impose, various diligence, milestone payment, royalty,
and  other  obligations  on  us.  If  we  fail  to  comply  with  our  obligations  under  these  agreements,  or  we  are  subject  to  a
bankruptcy, we may be required to make certain payments to the licensor, we may lose the exclusivity of our license, or the
licensor  may  have  the  right  to  terminate  the  license,  in  which  event  we  would  not  be  able  to  develop  or  market  products
covered by the license.

Additionally, the milestone and other payments associated with these licenses will make it less profitable for us to develop our
drug candidates. See “Business – Patents and Other Proprietary Rights” for a description of our license agreements.

Licensing of intellectual property is of critical importance to our business and involves complex legal, business, and scientific
issues. Disputes may arise regarding intellectual property subject to a licensing agreement, including but not limited to:

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

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

the licensing agreement;

● the sublicensing of patent and other rights;

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● our diligence obligations under the license agreement and what activities satisfy those diligence obligations;

● the  ownership  of  inventions  and  know-how  resulting  from  the  joint  creation  or  use  of  intellectual  property  by  our

licensors and us and our collaborators; and

● the priority of invention of patented technology.

If disputes over intellectual property and other rights that we have licensed prevent or impair our ability to maintain our current
licensing  arrangements  on  acceptable  terms,  we  may  be  unable  to  successfully  develop  and  commercialize  the  affected
product candidates.

Additionally, the research resulting in certain of our licensed patent rights and technology was funded by the U.S. government.
As  a  result,  the  government  may  have  certain  rights,  or  march-in  rights,  to  such  patent  rights  and  technology.  When  new
technologies are developed with government funding, the government generally obtains certain rights in any resulting patents,
including  a  non-exclusive  license  authorizing  the  government  to  use  the  invention  for  non-commercial  purposes.  The
government  can  exercise  its  march-in  rights  if  it  determines  that  action  is  necessary  because  we  fail  to  achieve  practical
application  of  the  government-funded  technology,  because  action  is  necessary  to  alleviate  health  or  safety  needs,  to  meet
requirements  of  federal  regulations  or  to  give  preference  to  U.S.  industry.  In  addition,  our  rights  in  such  inventions  may  be
subject  to  certain  requirements  to  manufacture  products  embodying  such  inventions  in  the  U.S.  Any  exercise  by  the
government  of  such  rights  could  harm  our  competitive  position,  business,  financial  condition,  results  of  operations  and
prospects.

Furthermore,  we  currently  have  very  limited  product  development  capabilities  and  no  manufacturing,  marketing  or  sales
capabilities.  For  us  to  research,  develop  and  test  our  product  candidates,  we  need  to  contract  or  partner  with  outside
researchers, in most cases with or through those parties that did the original research and from whom we have licensed the
technologies.  If  products  are  successfully  developed  and  approved  for  commercialization,  then  we  will  need  to  enter  into
additional collaboration and other agreements with third parties to manufacture and market our products. We may not be able
to induce the third parties to enter into these agreements, and, even if we are able to do so, the terms of these agreements
may  not  be  favorable  to  us.  Our  inability  to  enter  into  these  agreements  could  delay  or  preclude  the  development,
manufacture and/or marketing of some of our product candidates or could significantly increase the costs of doing so. In the
future, we may grant to our development partners rights to license and commercialize pharmaceutical and related products
developed  under  the  agreements  with  them,  and  these  rights  may  limit  our  flexibility  in  considering  alternatives  for  the
commercialization of these products. Furthermore, third-party manufacturers or suppliers may not be able to meet our needs
with respect to timing, quantity and quality for the products.

Additionally,  if  we  do  not  enter  into  relationships  with  additional  third  parties  for  the  marketing  of  our  products,  if  and  when
they  are  approved  and  ready  for  commercialization,  we  would  have  to  build  our  own  sales  force  or  enter  into
commercialization agreements with other companies. Development of an effective sales force in any part of the world would
require significant financial resources, time and expertise. We may not be able to obtain the financing necessary to establish a
sales force in a timely or cost effective manner, if at all, and any sales force we are able to establish may not be capable of
generating demand for our product candidates, if they are approved.

We may suffer product and other liability claims; we maintain only limited product liability insurance, which may not
be sufficient.

The clinical testing, manufacture and sale of our products involves an inherent risk that human subjects in clinical testing or
consumers of our products may suffer serious bodily injury or death due to side effects, allergic reactions or other unintended
negative  reactions  to  our  products.  As  a  result,  product  and  other  liability  claims  may  be  brought  against  us.  We  currently
have clinical trial and product liability insurance with aggregate limits of liability of $10 million, which may not be sufficient to
cover our potential liabilities. Because liability insurance is expensive and difficult to obtain, we may not be able to maintain
existing  insurance  or  obtain  additional  liability  insurance  on  acceptable  terms  or  with  adequate  coverage  against  potential
liabilities. Furthermore, if any claims are brought against us, even if we are fully covered by insurance, we may suffer harm
such as adverse publicity.

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We  may  use  hazardous  chemicals  in  our  business.  Potential  claims  relating  to  improper  handling,  storage  or
disposal of these chemicals could affect us and be time consuming and costly.

Our research and development processes and/or those of our third party contractors involve the controlled use of hazardous
materials and chemicals. These hazardous chemicals are reagents and solvents typically found in a chemistry laboratory. Our
operations  also  may  produce  hazardous  waste  products.  Federal,  state  and  local  laws  and  regulations  govern  the  use,
manufacture, storage, handling and disposal of hazardous materials. While we attempt to comply with all environmental laws
and regulations, including those relating to the outsourcing of the disposal of all hazardous chemicals and waste products, we
cannot eliminate the risk of contamination from or discharge of hazardous materials and any resultant injury. In the event of
such  an  accident,  we  could  be  held  liable  for  any  resulting  damages  and  any  liability  could  materially  adversely  affect  our
business, financial condition and results of operations.

Compliance  with  environmental  laws  and  regulations  may  be  expensive.  Current  or  future  environmental  regulations  may
impair our research, development or production efforts. We might have to pay civil damages in the event of an improper or
unauthorized release of, or exposure of individuals to, hazardous materials. We are not insured against these environmental
risks. We may agree to indemnify our collaborators in some circumstances against damages and other liabilities arising out of
development activities or products produced in connection with these collaborations.

In addition, the federal, state and local laws and regulations governing the use, manufacture, storage, handling and disposal
of  hazardous  or  radioactive  materials  and  waste  products  may  require  us  to  incur  substantial  compliance  costs  that  could
materially adversely affect our business, financial condition and results of operations.

We may not be able to compete with our larger and better financed competitors in the biotechnology industry.

The  biotechnology  industry  is  intensely  competitive,  subject  to  rapid  change  and  sensitive  to  new  product  introductions  or
enhancements. Most of our existing competitors have greater financial resources, larger technical staffs, and larger research
budgets than we have, as well as greater experience in developing products and conducting clinical trials. Our competition is
particularly intense in the gastroenterology and transplant areas and is also intense in the therapeutic area of inflammatory
bowel  diseases.  We  face  intense  competition  in  the  biodefense  area  from  various  public  and  private  companies  and
universities as well as governmental agencies, such as the U.S. Army, which may have their own proprietary technologies that
may  directly  compete  with  our  technologies.  In  addition,  there  may  be  other  companies  that  are  currently  developing
competitive  technologies  and  products  or  that  may  in  the  future  develop  technologies  and  products  that  are  comparable  or
superior to our technologies and products. We may not be able to compete with our existing and future competitors, which
could lead to the failure of our business.

Additionally, if a competitor receives FDA approval before we do for a drug that is similar to one of our product candidates,
FDA  approval  for  our  product  candidate  may  be  precluded  or  delayed  due  to  periods  of  non-patent  exclusivity  and/or  the
listing with the FDA by the competitor of patents covering its newly-approved drug product. Periods of non-patent exclusivity
for  new  versions  of  existing  drugs  such  as  our  current  product  candidates  can  extend  up  to  three  and  one-half  years.  See
“Business – The Drug Approval Process.”

These competitive factors could require us to conduct substantial new research and development activities to establish new
product  targets,  which  would  be  costly  and  time  consuming.  These  activities  would  adversely  affect  our  ability  to
commercialize products and achieve revenue and profits.

Competition  and  technological  change  may  make  our  product  candidates  and  technologies  less  attractive  or
obsolete.

We compete with established pharmaceutical and biotechnology companies that are pursuing other forms of treatment for the
same  indications  we  are  pursuing  and  that  have  greater  financial  and  other  resources.  Other  companies  may  succeed  in
developing products earlier than us, obtaining FDA approval for products more rapidly, or developing products that are more
effective than our product candidates. Research and development by others may render our technology or product candidates
obsolete  or  noncompetitive,  or  result  in  treatments  or  cures  superior  to  any  therapy  we  develop.  We  face  competition  from
companies  that  internally  develop  competing  technology  or  acquire  competing  technology  from  universities  and  other
research  institutions.  As  these  companies  develop  their  technologies,  they  may  develop  competitive  positions  that  may
prevent, make futile, or limit our product commercialization efforts, which would result in a decrease in the revenue we would
be able to derive from the sale of any products.

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There  can  be  no  assurance  that  any  of  our  product  candidates  will  be  accepted  by  the  marketplace  as  readily  as  these  or
other competing treatments. Furthermore, if our competitors’ products are approved before ours, it could be more difficult for
us to obtain approval from the FDA. Even if our products are successfully developed and approved for use by all governing
regulatory bodies, there can be no assurance that physicians and patients will accept our product(s) as a treatment of choice.

Furthermore, the pharmaceutical research industry is diverse, complex, and rapidly changing. By its nature, the business risks
associated  therewith  are  numerous  and  significant.  The  effects  of  competition,  intellectual  property  disputes,  market
acceptance, and FDA regulations preclude us from forecasting revenues or income with certainty or even confidence.

Our business could be harmed if we fail to retain our current personnel or if they are unable to effectively run our
business.

We currently have 15 employees and we depend upon these employees, in particular Dr. Christopher Schaber, our President
and Chief Executive Officer, to manage the day-to-day activities of our business. Because we have such limited personnel,
the loss of any of them or our inability to attract and retain other qualified employees in a timely manner would likely have a
negative impact on our operations. We may be unable to effectively manage and operate our business, and our business may
suffer, if we lose the services of our employees.

Instability and volatility in the financial markets could have a negative impact on our business, financial condition,
results of operations, and cash flows.

During recent years, there has been substantial volatility in financial markets due at least in part to the uncertainty with regard
to the global economic environment. In addition, there has been substantial uncertainty in the capital markets and access to
additional  financing  is  uncertain.  Moreover,  customer  spending  habits  may  be  adversely  affected  by  current  and  future
economic  conditions.  These  conditions  could  have  an  adverse  effect  on  our  industry  and  business,  including  our  financial
condition, results of operations, and cash flows.

To the extent that we do not generate sufficient cash from operations, we may need to issue stock or incur indebtedness to
finance our plans for growth. Recent turmoil in the credit markets and the potential impact on the liquidity of major financial
institutions may have an adverse effect on our ability to fund our business strategy through borrowings, under either existing
or newly created instruments in the public or private markets on terms we believe to be reasonable, if at all.

Adverse developments affecting financial institutions such as actual events or concerns involving liquidity, defaults
or non-performance, could adversely affect our operations and liquidity.

Actual  events  involving  limited  liquidity,  defaults,  non-performance  or  other  adverse  developments  that  affect  financial
institutions, or concerns or rumors about any events of these kinds, have in the past and may in the future lead to market-
wide  liquidity  problems.  For  example,  on  March  10,  2023,  Silicon  Valley  Bank  (“SVB”)  was  closed  by  the  California
Department of Financial Protection and Innovation, which appointed the Federal Deposit Insurance Corporation (the “FDIC”)
as  receiver.  Despite  subsequent  actions  taken  by  the  U.S.  Department  of  the  Treasury,  the  U.S.  Federal  Reserve  and  the
FDIC to ensure that all depositors of SVB had access to all of their cash deposits following the closure of SVB, uncertainty
and liquidity concerns in the broader financial services industry remain.

We maintain cash balances at a third-party financial institution in excess of the FDIC insurance limit. Our access to our cash
and cash equivalents in amounts adequate to finance our operations could be significantly impaired to the extent the financial
institution  with  which  we  maintain  cash  balances  faces  liquidity  constraints  or  failures.  Any  material  decline  in  our  ability  to
access our cash and cash equivalents could adversely impact our ability to meet our operating expenses, result in breaches
of  our  contractual  obligations  or  result  in  significant  disruptions  to  our  business,  any  of  which  could  have  material  adverse
impacts  on  our  operations  and  liquidity.  There  is  no  guarantee  that  the  U.S.  Department  of  Treasury,  the  U.S.  Federal
Reserve  and  the  FDIC  will  provide  access  to  uninsured  funds  in  the  future  in  the  event  of  the  closure  of  other  banks  or
financial institutions in a timely fashion or at all.

We may not be able to utilize all of our net operating loss carryforwards.

The  State  of  New  Jersey’s  Technology  Business  Tax  Certificate  Program  allows  certain  high  technology  and  biotechnology
companies to sell unused net operating loss (“NOL”) carryforwards to other New Jersey-based corporate taxpayers. We

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sold  2022,  2021  and  2020  New  Jersey  NOL  carryforwards,  resulting  in  the  recognition  of  $1,767,803  and  $1,154,935  of
income tax benefit, net of transaction costs during the years ended December 31, 2023 and 2022, respectively. We have not
yet sold our 2023 New Jersey NOL carryforwards but may do so in the future. If there is an unfavorable change in the State of
New Jersey’s Technology Business Tax Certificate Program (whether as a result of a change in law, policy or otherwise) that
terminates the program or eliminates or reduces our ability to use or sell our NOL carryforwards or if we are unable to find a
suitable buyer to utilize our New Jersey NOL carryforwards to the extent the NOLs expire before we are able to utilize them
against our taxable income, our cash taxes may increase which may have an adverse effect on our financial condition.

Global  pathogens  that  could  have  an  impact  on  financial  markets,  materials  sourcing,  patients,  governments  and
population (e.g. COVID-19).

Global pathogens (e.g., SARS-CoV-2, the pathogen responsible for COVID-19) could cause an impact on financial markets
and therefore repercussions to our operating business, including but not limited to, the sourcing of materials for our product
candidates, manufacture of supplies for our preclinical and/or clinical studies, delays in clinical operations, which may include
the availability or the continued availability of patients for our trials due to such things as quarantines, our conduct of patient
monitoring and clinical trial data retrieval at investigational study sites.

The  impacts  of  outbreaks  are  highly  uncertain  and  cannot  be  predicted,  and  we  cannot  provide  any  assurance  that  any
outbreak will not have a material adverse impact on our operations or future results or filings with regulatory health authorities.
The extent of the impact to us, if any, will depend on future developments, including actions taken to contain the pathogen.

Risks Related to our Intellectual Property

We may be unable to commercialize our products if we are unable to protect our proprietary rights, and we may be
liable for significant costs and damages if we face a claim of intellectual property infringement by a third party.

Our  near  and  long-term  prospects  depend  in  part  on  our  ability  to  obtain  and  maintain  patents,  protect  trade  secrets  and
operate  without  infringing  upon  the  proprietary  rights  of  others.  In  the  absence  of  patent  and  trade  secret  protection,
competitors  may  adversely  affect  our  business  by  independently  developing  and  marketing  substantially  equivalent  or
superior  products  and  technology,  possibly  at  lower  prices.  We  could  also  incur  substantial  costs  in  litigation  and  suffer
diversion of attention of technical and management personnel if we are required to defend ourselves in intellectual property
infringement  suits  brought  by  third  parties,  with  or  without  merit,  or  if  we  are  required  to  initiate  litigation  against  others  to
protect or assert our intellectual property rights. Moreover, any such litigation may not be resolved in our favor.

Although  we  and  our  licensors  have  filed  various  patent  applications  covering  the  uses  of  our  product  candidates,  patents
may not be issued from the patent applications already filed or from applications that we might file in the future. Moreover, the
patent position of companies in the pharmaceutical industry generally involves complex legal and factual questions, and has
been the subject of much litigation. Any patents we own or license, now or in the future, may be challenged, invalidated or
circumvented.  To  date,  no  consistent  policy  has  been  developed  in  the  U.S.  Patent  and  Trademark  Office  (the  “PTO”)
regarding the breadth of claims allowed in biotechnology patents.

In  addition,  because  patent  applications  in  the  U.S.  are  maintained  in  secrecy  until  patent  applications  publish  or  patents
issue,  and  because  publication  of  discoveries  in  the  scientific  or  patent  literature  often  lags  behind  actual  discoveries,  we
cannot be certain that we and our licensors are the first creators of inventions covered by any licensed patent applications or
patents or that we or they are the first to file. The PTO may commence interference proceedings involving patents or patent
applications, in which the question of first inventorship is contested. Accordingly, the patents owned or licensed to us may not
be valid or may not afford us protection against competitors with similar technology, and the patent applications licensed to us
may not result in the issuance of patents.

It  is  also  possible  that  our  owned  and  licensed  technologies  may  infringe  on  patents  or  other  rights  owned  by  others,  and
licenses to which may not be available to us. We may be unable to obtain a license under such patent on terms favorable to
us,  if  at  all.  We  may  have  to  alter  our  products  or  processes,  pay  licensing  fees  or  cease  activities  altogether  because  of
patent rights of third parties.

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In addition to the products for which we have patents or have filed patent applications, we rely upon unpatented proprietary
technology  and  may  not  be  able  to  meaningfully  protect  our  rights  with  regard  to  that  unpatented  proprietary  technology.
Furthermore, to the extent that consultants, key employees or other third parties apply technological information developed by
them or by others to any of our proposed projects, disputes may arise as to the proprietary rights to this information, which
may not be resolved in our favor.

We may be involved in lawsuits to protect or enforce our patents, which could be expensive and time consuming.

The pharmaceutical industry has been characterized by extensive litigation regarding patents and other intellectual property
rights, and companies have employed intellectual property litigation to gain a competitive advantage. We may become subject
to infringement claims or litigation arising out of patents and pending applications of our competitors, or additional interference
proceedings declared by the PTO to determine the priority of inventions. The defense and prosecution of intellectual property
suits, PTO proceedings, and related legal and administrative proceedings are costly and time-consuming to pursue, and their
outcome is uncertain. Litigation may be necessary to enforce our issued patents, to protect our trade secrets and know-how,
or to determine the enforceability, scope, and validity of the proprietary rights of others. An adverse determination in litigation
or  interference  proceedings  to  which  we  may  become  a  party  could  subject  us  to  significant  liabilities,  require  us  to  obtain
licenses  from  third  parties,  or  restrict  or  prevent  us  from  selling  our  products  in  certain  markets.  Although  patent  and
intellectual  property  disputes  might  be  settled  through  licensing  or  similar  arrangements,  the  costs  associated  with  such
arrangements may be substantial and could include our paying large fixed payments and ongoing royalties. Furthermore, the
necessary licenses may not be available on satisfactory terms or at all.

Competitors may infringe our patents, and we may file infringement claims to counter infringement or unauthorized use. This
can be expensive, particularly for a company of our size, and time-consuming. In addition, in an infringement proceeding, a
court may decide that a patent of ours is not valid or is unenforceable or may refuse to stop the other party from using the
technology at issue on the grounds that our patents do not cover its technology. An adverse determination of any litigation or
defense proceedings could put one or more of our patents at risk of being invalidated or interpreted narrowly.

Also, a third party may assert that our patents are invalid and/or unenforceable. There are no unresolved communications,
allegations,  complaints  or  threats  of  litigation  related  to  the  possibility  that  our  patents  are  invalid  or  unenforceable.  Any
litigation or claims against us, whether or not merited, may result in substantial costs, place a significant strain on our financial
resources,  divert  the  attention  of  management  and  harm  our  reputation.  An  adverse  decision  in  litigation  could  result  in
inadequate  protection  for  our  product  candidates  and/or  reduce  the  value  of  any  license  agreements  we  have  with  third
parties.

Interference  proceedings  brought  before  the  PTO  may  be  necessary  to  determine  priority  of  invention  with  respect  to  our
patents  or  patent  applications.  During  an  interference  proceeding,  it  may  be  determined  that  we  do  not  have  priority  of
invention for one or more aspects in our patents or patent applications and could result in the invalidation in part or whole of a
patent  or  could  put  a  patent  application  at  risk  of  not  issuing.  Even  if  successful,  an  interference  proceeding  may  result  in
substantial costs and distraction to our management.

Furthermore,  because  of  the  substantial  amount  of  discovery  required  in  connection  with  intellectual  property  litigation  or
interference  proceedings,  there  is  a  risk  that  some  of  our  confidential  information  could  be  compromised  by  disclosure.  In
addition,  there  could  be  public  announcements  of  the  results  of  hearings,  motions  or  other  interim  proceedings  or
developments. If investors perceive these results to be negative, the price of our common stock could be adversely affected.

If we infringe the rights of third parties we could be prevented from selling products, forced to pay damages, and
defend against litigation.

If  our  products,  methods,  processes  and  other  technologies  infringe  the  proprietary  rights  of  other  parties,  we  could  incur
substantial costs and we may have to: obtain licenses, which may not be available on commercially reasonable terms, if at all;
abandon  an  infringing  product  candidate;  redesign  our  products  or  processes  to  avoid  infringement;  stop  using  the  subject
matter claimed in the patents held by others; pay damages; and/or defend litigation or administrative proceedings which may
be  costly  whether  we  win  or  lose,  and  which  could  result  in  a  substantial  diversion  of  our  financial  and  management
resources.

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Risks Related to Technology and Intellectual Property

Our strategy includes an increasing dependence on technology in our operations. If any of our key technology fails,
our business could be adversely affected.

Our  operations  are  increasingly  dependent  on  technology.  Our  information  technology  systems  are  critical  to  our  ability  to
develop our products and otherwise operating our business. Problems with the operation of the information or communication
technology  systems  we  use  could  adversely  affect,  or  temporarily  disable,  all  or  a  portion  of  our  operations.  Further,  any
systems failures could impede our ability to timely collect and report financial results in accordance with applicable laws.

A  cybersecurity  incident  could  negatively  impact  our  business  and  our  relationships  with  our  employees,  service
providers, patients, clinical study sites and government agencies.

We  use  information  technology  and  operational  technology  assets,  including  computer  and  information  networks,  in
substantially all aspects of our business operations. We also use mobile devices, social networking and other online activities
to connect with our employees, service providers, patients, clinical study sites and government agencies. Such uses give rise
to  cybersecurity  risks,  including  security  breach,  espionage,  system  disruption,  theft  and  inadvertent  release  of  information.
Our  business  involves  the  storage  and  transmission  of  numerous  classes  of  sensitive  and/or  confidential  information  and
intellectual  property,  including  clinical  trial  participants’  personal  information,  private  information  about  employees  and
financial and strategic information about us and our business partners. If we fail to assess and identify cybersecurity threats,
we  may  become  increasingly  vulnerable  to  such  threats.  Additionally,  while  we  have  implemented  measures  to  prevent
security breaches and cyber incidents, our preventive measures and incident response efforts may not be entirely effective.
Also,  the  regulatory  environment  surrounding  information  security  and  privacy  is  increasingly  demanding,  with  the  frequent
imposition  of  new  and  constantly  changing  requirements.  This  changing  regulatory  landscape  may  cause  increasingly
complex  compliance  challenges,  which  may  increase  our  compliance  costs.  Any  failure  to  comply  with  these  changing
security and privacy laws and regulations could result in significant penalties, fines, legal challenges and reputational harm.
The theft, destruction, loss, misappropriation, or release of sensitive and/or confidential information or intellectual property, or
interference with our information technology systems or the technology systems of third parties on which we rely, could result
in  business  disruption,  negative  publicity,  brand  damage,  violation  of  privacy  laws,  loss  of  confidence,  potential  liability  and
competitive disadvantage.

Risks Related to our Securities

The price of our common stock may be highly volatile.

The  market  price  of  our  securities,  like  that  of  many  other  research  and  development  public  pharmaceutical  and
biotechnology companies, has been highly volatile and the price of our common stock may be volatile in the future due to a
wide variety of factors, including:

● announcements by us or others of results of pre-clinical testing and clinical trials;

● announcements of technological innovations, more important bio-threats or new commercial therapeutic products by

us, our collaborative partners or our present or potential competitors;

● failure  of  our  common  stock  to  continue  to  be  listed  or  quoted  on  a  national  exchange  or  market  system,  such  as

Nasdaq or the New York Stock Exchange;

● our quarterly operating results and performance;

● developments or disputes concerning patents or other proprietary rights;

● mergers or acquisitions;

● litigation and government proceedings;

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● adverse legislation;

● changes in government regulations;

● our available working capital;

● economic and other external factors; and

● general market conditions.

Since January 1, 2023, the closing stock price of our common stock has fluctuated between a high of $7.65 per share to a low
of $0.40 per share. On March 8, 2024, the last reported sale price of our common stock on The Nasdaq Capital Market was
$0.77 per share. The fluctuation in the price of our common stock has sometimes been unrelated or disproportionate to our
operating performance. In addition, potential dilutive effects of future sales of shares of common stock and warrants by us, as
well as potential sale of common stock by the holders of warrants, options and convertible promissory notes, could have an
adverse effect on the market price of our shares.

If we fail to meet Nasdaq’s listing requirements, we could be removed from The Nasdaq Capital Market, which would
limit the ability of broker-dealers to sell our securities and the ability of shareholders to sell their securities in the
secondary market and negatively impact our ability to raise capital.

Companies trading on Nasdaq, such as our Company, must be reporting issuers under Section 12 of the Exchange Act, and
must meet the listing requirements in order to maintain the listing of common stock on The Nasdaq Capital Market. If we do
not meet these requirements, the market liquidity for our securities could be severely adversely affected by limiting the ability
of broker-dealers to sell our securities and the ability of shareholders to sell their securities in the secondary market.

On  June  23,  2023,  we  received  a  letter  from  the  Listing  Qualifications  Department  of  Nasdaq  stating  that  we  were  not  in
compliance with the $1.00 minimum bid price requirement set forth in Nasdaq Listing Rule 5550(a)(2) for continued listing on
the Nasdaq Capital Market (the “Minimum Bid Price Rule”) because our common stock failed to maintain a minimum closing
bid price of $1.00 for 30 consecutive trading days. In accordance with Nasdaq Listing Rule 5810(c)(3)(A), we were afforded
an initial period of 180 calendar days, or until December 20, 2023, to regain compliance with the Minimum Bid Price Rule. We
were unable to regain compliance with the Minimum Bid Price Rule prior to the expiration of the 180 calendar day period.

On December 21, 2023, we received written notice from Nasdaq stating that we had not complied with the Minimum Bid Price
Rule  and  were  not  eligible  for  a  second  180-day  period  because  we  did  not  comply  with  the  $5,000,000  minimum
stockholders’ equity initial listing requirement for The Nasdaq Capital Market. In that regard, our Quarterly Report on Form 10-
Q for the quarter ended September 30, 2023 reported stockholders’ equity of $4,221,155. As a result, the notice indicated that
our common stock would be suspended from trading on Nasdaq unless we requested a hearing before a hearings panel by
December  28,  2023.  Nasdaq  has  scheduled  a  hearing  for  March  26,  2024,  which  stayed  any  trading  suspension  of  our
common stock until completion of the Nasdaq hearing process and expiration of any additional extension period granted by
the panel following the hearing.

There can be no assurance that we will be able to regain compliance with the Minimum Bid Price Rule prior to the hearing
date or at all, that Nasdaq will grant us an extension of time to achieve compliance with the Minimum Bid Price Rule or that
our common stock will remain listed on The Nasdaq Capital Market.  If the hearing does not result in Nasdaq granting us an
extension of time to achieve compliance with the Minimum Bid Price Rule, our common stock will be delisted from Nasdaq.

If our common stock is delisted from Nasdaq, it will have material negative impact on the actual and potential liquidity of our
securities, as well as material negative impact on our ability to raise future capital. If, for any reason, Nasdaq should delist our
common stock from trading on its exchange and we are unable to obtain listing on another national securities exchange

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or  take  action  to  restore  our  compliance  with  the  Nasdaq  continued  listing  requirements,  a  reduction  in  some  or  all  of  the
following may occur, each of which could have a material adverse effect on our shareholders:

●

●

●

●

●

●

●

the liquidity of our common stock;

the market price of our common stock;

our ability to obtain financing for the continuation of our operations;

the number of institutional and general investors that will consider investing in our securities;

the number of market makers in our common stock;

the availability of information concerning the trading prices and volume of our common stock; and

the number of broker-dealers willing to execute trades in shares of our common stock.

Shareholders may suffer substantial dilution related to issued stock warrants, options and convertible notes.

As  of  December  31,  2023,  we  had  a  number  of  agreements  or  obligations  that  may  result  in  dilution  to  investors.  These
include:

● warrants to purchase a total of approximately 6,538,073 shares of our common stock at a current weighted average

exercise price of $1.50;

● options to purchase approximately 906,892 shares of our common stock at a current weighted average exercise price

of $5.73; and

● convertible  promissory  notes  issued  to  Pontifax  Medison  Finance,  of  which  there  was  $3,000,000  of  principal  and
$63,351 of accrued interest outstanding. The Convertible Notes were convertible at (i) 90% of the closing price of our
common  stock  on  the  day  before  the  delivery  of  the  conversion  notice  with  respect  to  the  first  588,599  shares
issuable upon conversion at December 31, 2023 and (ii) $1.70 with respect to all shares issuable upon conversion in
excess of the first 588,599 shares issued upon conversion at December 31, 2023.

We  also  have  an  incentive  compensation  plan  for  our  management,  employees  and  consultants.  We  have  granted,  and
expect to grant in the future, options to purchase shares of our common stock to our directors, employees and consultants. To
the extent that warrants, options or convertible promissory notes are exercised or converted, our stockholders will experience
dilution and our stock price may decrease.

Additionally, the sale, or even the possibility of the sale, of the shares of common stock underlying these warrants, options
and convertible promissory notes could have an adverse effect on the market price for our securities or on our ability to obtain
future financing.

Our shares of common stock are thinly traded, so stockholders may be unable to sell at or near ask prices or at all if
they need to sell shares to raise money or otherwise desire to liquidate their shares.

Our common stock has from time to time been “thinly-traded,” meaning that the number of persons interested in purchasing
our common stock at or near ask prices at any given time may be relatively small or non-existent. This situation is attributable
to  a  number  of  factors,  including  the  fact  that  we  are  a  small  company  that  is  relatively  unknown  to  stock  analysts,  stock
brokers, institutional investors and others in the investment community that generate or influence sales volume, and that even
if  we  came  to  the  attention  of  such  persons,  they  tend  to  be  risk-averse  and  would  be  reluctant  to  follow  an  unproven
company such as ours or purchase or recommend the purchase of our shares until such time as we become more seasoned
and viable. As a consequence, there may be periods of several days or more when trading activity in our shares is minimal or
non-existent, as compared to a seasoned issuer which has a large and steady volume of trading activity that will generally
support continuous sales without an adverse effect on share price. We cannot give stockholders any assurance that a

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broader  or  more  active  public  trading  market  for  our  common  shares  will  develop  or  be  sustained,  or  that  current  trading
levels will be sustained.

Our  common  stock  is  deemed  to  be  a  “penny  stock,”  which  may  make  it  more  difficult  for  investors  to  sell  their
shares due to suitability requirements.

Our  common  stock  is  subject  to  Rule  15g-1  through  15g-9  under  the  Exchange  Act,  which  imposes  certain  sales  practice
requirements on broker-dealers which sell our common stock to persons other than established customers and “accredited
investors”  (generally,  individuals  with  a  net  worth  in  excess  of  $1,000,000  or  annual  incomes  exceeding  $200,000  (or
$300,000 together with their spouses)). For transactions covered by this rule, a broker-dealer must make a special suitability
determination for the purchaser and have received the purchaser’s written consent to the transaction prior to the sale. This
rule  adversely  affects  the  ability  of  broker-dealers  to  sell  our  common  stock  and  the  ability  of  our  stockholders  to  sell  their
shares of common stock.

Additionally, our common stock is subject to SEC regulations for “penny stock.” The regulations require that prior to any non-
exempt buy/sell transaction in a penny stock, a disclosure schedule set forth by the SEC relating to the penny stock market
must be delivered to the purchaser of such penny stock. This disclosure must include the amount of commissions payable to
both the broker-dealer and the registered representative and current price quotations for the common stock. The regulations
also require that monthly statements be sent to holders of penny stock that disclose recent price information for the penny
stock and information of the limited market for penny stocks. These requirements may adversely affect the market liquidity of
our common stock.

We do not currently intend to pay dividends on our common stock in the foreseeable future, and consequently, our
stockholders’ ability to achieve a return on their investment will depend on appreciation in the price of our common
stock.

We  have  never  declared  or  paid  cash  dividends  on  our  common  stock  and  do  not  anticipate  paying  any  cash  dividends  to
holders of our common stock in the foreseeable future. Consequently, our stockholders must rely on sales of their common
stock after price appreciation, which may never occur, as the only way to realize any future gains on their investments. There
is no guarantee that shares of our common stock will appreciate in value or even maintain the price at which our stockholders
have purchased their shares.

Upon our dissolution, our stockholders may not recoup all or any portion of their investment.

In  the  event  of  our  liquidation,  dissolution  or  winding-up,  whether  voluntary  or  involuntary,  the  proceeds  and/or  our  assets
remaining after giving effect to such transaction, and the payment of all of our debts and liabilities will be distributed to the
holders  of  common  stock  on  a  pro  rata  basis.  There  can  be  no  assurance  that  we  will  have  available  assets  to  pay  to  the
holders of common stock, or any amounts, upon such a liquidation, dissolution or winding-up. In this event, our stockholders
could lose some or all of their investment.

The issuance of our common stock pursuant to the terms of the asset purchase agreement with Hy Biopharma Inc.
may cause dilution and the issuance of such shares of common stock, or the perception that such issuances may
occur, could cause the price of our common stock to fall.

On April 1, 2014, we entered into an option agreement pursuant to which Hy Biopharma granted us an option to purchase
certain assets, properties and rights (the “Hypericin Assets”) related to the development of Hy Biopharma’s synthetic hypericin
product candidate for the treatment of CTCL, which we refer to as HyBryte™, from Hy Biopharma. In exchange for the option,
we paid $50,000 in cash and issued 288 shares of common stock in the aggregate to Hy Biopharma and its assignees. We
subsequently  exercised  the  option,  and  on  September  3,  2014,  we  entered  into  an  asset  purchase  agreement  (the  “Asset
Purchase  Agreement”)  with  Hy  Biopharma,  pursuant  to  which  we  purchased  the  Hypericin  Assets.  Pursuant  to  the  Asset
Purchase Agreement, we initially paid $275,000 in cash and issued 12,328 shares of common stock in the aggregate to Hy
Biopharma and its assignees, and the licensors of the license agreement acquired from Hy Biopharma. Also, on September 3,
2014, we entered into a Registration Rights Agreement with Hy Biopharma, pursuant to which we may be required to file a
registration  statement  with  the  SEC.  In  March  2020,  we  issued  130,413  shares  of  common  stock  at  a  value  of  $5,000,000
(based upon an effective per share price of $38.40 as a result of HyBryte™ demonstrating statistically significant treatment
response in the Phase 3 clinical trial. We will be required to issue up to $5.0

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million  worth  of  our  common  stock  (subject  to  a  cap  equal  to  19.9%  of  our  issued  and  outstanding  common  stock)  in  the
aggregate, if HyBryte™ is approved for the treatment of CTCL by either the FDA or the EMA.

The number of shares that we may issue under the Asset Purchase Agreement will fluctuate based on the market price of our
common  stock.  Depending  on  market  liquidity  at  the  time,  the  issuance  of  such  shares  may  cause  the  trading  price  of  our
common stock to fall.

We may ultimately issue all, some or none of the additional shares of our common stock that may be issued pursuant to the
Asset  Purchase  Agreement.  We  are  required  to  register  any  shares  issued  pursuant  to  the  purchase  agreement  for  resale
under the Securities Act of 1933, as amended (the “Securities Act”). After any such shares are registered, the holders will be
able  to  sell  all,  some  or  none  of  those  shares.  Therefore,  issuances  by  us  under  the  purchase  agreement  could  result  in
substantial dilution to the interests of other holders of our common stock. Additionally, the issuance of a substantial number of
shares of our common stock pursuant to the Asset Purchase Agreement, or the anticipation of such issuances, could make it
more difficult for us to sell equity or equity-related securities in the future at a time and at a price that we might otherwise wish
to effect sales.

Repayment  of  certain  convertible  notes,  if  they  are  not  otherwise  converted,  will  require  a  significant  amount  of
cash, and we may not have sufficient cash flow from our business to make payments on our indebtedness.

Our ability to pay the principal of and/or interest on the convertible notes issued pursuant to the Loan and Security Agreement
with Pontifax Medison Finance (the “Convertible Notes”) depends on our future performance, which is subject to economic,
financial, competitive and other factors beyond our control. Our business may not generate cash flow from operations in the
future sufficient to service the Convertible Notes or other future indebtedness and make necessary capital expenditures. If we
are unable to generate such cash flow, we may be required to adopt and implement one or more alternatives, such as selling
assets, restructuring indebtedness or obtaining additional debt financing or equity financing on terms that may be onerous or
highly dilutive. Our ability to refinance the Convertible Notes or other future indebtedness will depend on the capital markets
and our financial condition at such time. We may not be able to engage in any of these activities or engage in these activities
on desirable terms, which could result in a default on our debt obligations, including the Convertible Notes.

The  issuance  of  shares  of  common  stock  upon  conversion  of  the  Convertible  Notes  could  substantially  dilute
shareholders’ investments and could impede our ability to obtain additional financing.

The Convertible Notes are convertible into shares of our common stock and give the holders an opportunity to profit from a
rise  in  the  market  price  of  our  common  stock  such  that  conversion  or  exercise  thereof  could  result  in  dilution  of  the  equity
interests  of  our  shareholders.  As  of  March  8,  2024,  there  was  $2,900,858  of  principal  and  $45,840  of  accrued  interest
outstanding under the Convertible Notes. We have no control over whether the holders will exercise their right to convert their
Convertible Notes. While the Convertible Notes are convertible at (i) 90% of the closing price of our common stock on the day
before the delivery of the conversion notice with respect to the first 442,400 shares issuable upon conversion as of March 8,
2024  and  (ii)  $1.70  with  respect  to  all  shares  issuable  upon  conversion  in  excess  of  the  first  442,400  shares  issued  upon
conversion as of March 8, 2024, we cannot predict the market price of our common stock at any future date, and therefore,
cannot predict whether the Convertible Notes will be converted. We also may choose to reduce the conversion price of the
Convertible Notes, which would likely cause the Convertible Notes to be converted into a significant amount of our common
stock and reduce our liabilities. The existence and potentially dilutive impact of the Convertible Notes may prevent us from
obtaining additional financing in the future on acceptable terms, or at all.

Our  Board  of  Directors  can,  without  stockholder  approval,  cause  preferred  stock  to  be  issued  on  terms  that
adversely affect holders of our common stock.

Under our Certificate of Incorporation, our Board of Directors is authorized to issue up to 230,000 shares of preferred stock, of
which none are issued and outstanding as of the date of this prospectus. Also, our Board of Directors, without stockholder
approval, may determine the price, rights, preferences, privileges and restrictions, including voting rights, of those shares. If
our Board of Directors causes shares of preferred stock to be issued, the rights of the holders of our common stock would
likely be subordinate to those of preferred holders and therefore could be adversely affected. Our Board of Directors’ ability to
determine  the  terms  of  preferred  stock  and  to  cause  its  issuance,  while  providing  desirable  flexibility  in  connection  with
possible acquisitions and other corporate purposes, could have the effect of making it more difficult for a third party to acquire
a majority of our outstanding common stock. Preferred shares issued by our Board of Directors could include voting

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rights  or  super  voting  rights,  which  could  shift  the  ability  to  control  the  Company  to  the  holders  of  the  preferred  stock.
Preferred stock could also have conversion rights into shares of our common stock at a discount to the market price of our
common  stock,  which  could  negatively  affect  the  market  for  our  common  stock.  In  addition,  preferred  stock  would  have
preference in the event of liquidation of the Company, which means that the holders of preferred stock would be entitled to
receive  the  net  assets  of  the  Company  distributed  in  liquidation  before  the  holders  of  our  common  stock  receive  any
distribution of the liquidated assets.

Item 1B. Unresolved Staff Comments

None.

Item 1C. Cybersecurity

Cybersecurity Risk Management and Strategy

Our technology and cybersecurity programs are crucial to maintaining secure operations, which enable us to deliver on our
promise to maintain stakeholder trust. Our Chief Financial Officer is responsible for establishing, implementing and executing
our  cybersecurity  program  and  strategy.  Our  CFO  has  over  eight  years  of  information  technology,  information  technology
audit, and cybersecurity experience, and is involved in following the latest developments in cybersecurity, including potential
threats and innovative risk management techniques.

Our  cybersecurity  program  is  a  critical  component  of  our  enterprise  risk  management  process  overseen  by  our  Board  of
Directors,  and  we  have  integrated  cybersecurity-related  risks  into  our  overall  enterprise  risk  management  framework.
Additionally,  cybersecurity-related  risks  are  included  in  the  risk  universe  that  the  risk  management  function  evaluates  to
assess top risks to the enterprise on an annual basis.

Our  personnel  responsible  for  cybersecurity  proactively  identifies,  manages,  and  mitigates  cyber  risk  in  a  variety  of  ways,
including but not limited to:

a.
b.
c.
d.
e.
f.
g.
h.

A formal enterprise-wide cybersecurity policy and related standards;
Cybersecurity training and employee phishing simulations;
Scheduled and ad hoc internal and external penetration tests;
Cyber incident response, IT disaster recovery, and business continuity plans;
Cybersecurity assessments and remediation planning as part of our due diligence process;
Identity and access management controls;
Third-party risk assessment and management for vendors and third-party service providers; and
Cyber incident exercises for our Board of Directors and management.

A primary element of our cybersecurity program is the implementation of controls that are aligned with industry guidelines and
applicable regulations to identify threats, deter attacks, and protect our information security assets. We have procedures in
place for selecting and managing our relationships with third-party service providers and other business partners, including to
monitor  compliance  with  our  agreements  and  regulatory  and  legal  requirements.  We  also  actively  engage  with  industry
participants as part of our continuing efforts to evaluate and enhance the effectiveness of our information security policies and
procedures.

Our cybersecurity program is designed based on the concepts of control maturity and control efficacy. For control maturity, our
cybersecurity  program  is  aligned  to  the  National  Institute  of  Standards  and  Technology  (“NIST”)  Cybersecurity  Framework
(“CSF”) and is assessed annually by an independent third party against our yearly control maturity targets in the context of
current cyber threat and industry trends. The NIST CSF assessment results are used to validate the progress made against
the current year maturity targets, inform the program’s strategic priorities and establish maturity targets for the following year.
These assessment results are provided to our Board of Directors on an annual basis.

For control efficacy, the cybersecurity program leverages a variety of metrics and measurements to demonstrate whether the
control objectives are being consistently achieved within the target range. Monthly security operation (“SecOps”) reviews are
utilized  to  monitor  metric  trends  and  root  causes  to  determine  potential  capability  improvements.  The  monthly  SecOps
reviews and related actions are aggregated into a subset of key metrics reviewed quarterly by the Board of Directors.

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Cybersecurity Governance

Our Board of Directors oversees the management of our cybersecurity risk exposures and the steps management has taken
to monitor and control such exposures. At each quarterly meeting, the Board of Directors receives an update from our CFO
and other members of management on relevant topics, including cybersecurity program maturity progress, new capabilities
implemented,  penetration  testing  results,  key  cyber  risk  metrics  (e.g.,  simulated  phishing  testing  and  vulnerability
management) and notable incidents or events should they occur. On an annual basis, our Board of Directors meets with our
CFO  and  our  third-party  cybersecurity  consultant  to  review  our  cybersecurity  strategy  and  the  results  of  our  NIST  CSF
assessment.  In  accordance  with  our  cybersecurity  incident  response  plan,  our  Board  of  Directors  is  promptly  informed  of
potentially material cybersecurity incidents, including with respect to our third-party service providers.

Although we have experienced cybersecurity incidents from time to time that have not had a material adverse effect on our
business, financial condition, or results of operations, there can be no assurance that a cyber-attack, security breach, or other
cybersecurity  incident  will  not  have  a  material  adverse  effect  on  us  in  the  future.  For  a  discussion  regarding  risks  from
cybersecurity threats that have or are reasonably likely to affect us, see our risk factors, including the risk factors titled “Our
strategy includes an increasing dependence on technology in our operations. If any of our key technology fails, our business
could be adversely affected.” and “A cybersecurity incident could negatively impact our business and our relationships with
employees,  service  providers,  patients,  clinical  study  sites  and  government  agencies.”  in  Item  1A  of  this  Annual  Report  on
Form 10-K.

Item 2. Properties

We currently lease approximately 6,200 square feet of office space at 29 Emmons Drive, Suite B-10 in Princeton, New Jersey.
This  office  space  currently  serves  as  our  corporate  headquarters,  and  both  of  our  business  segments  (Specialized
BioTherapeutics  and  Public  Health  Solutions),  operate  from  this  space.  Pursuant  to  an  amendment  on  June  21,  2022,  the
lease has been extended from November 2022 to October 2025. The current rent is approximately $11,367 per month and will
remain so through October 2024. The rent for the lease period starting November 2024 is approximately $11,625 per month.
Our office space is sufficient for our current needs. We may add new space or expand existing space as we add employees,
and we believe that suitable additional or substitute space will be available as needed to accommodate any such expansion
of our operations.

Item 3. Legal Proceedings

None.

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PART II

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

Our common stock is traded on The Nasdaq Capital Market under the symbol “SNGX.” The following table sets forth the high
and low sales prices per share of our common stock for the periods indicated, as reported by The Nasdaq Capital Market.

Period
Year Ended December 31, 2022:

First Quarter
Second Quarter
Third Quarter
Fourth Quarter

Year Ended December 31, 2023:

First Quarter
Second Quarter
Third Quarter
Fourth Quarter

Price Range

High

Low

$
$
$
$

$
$
$
$

 13.65
 12.00
 15.00
 10.95

 8.10
 4.20
 0.74
 2.00

$
$
$
$

$
$
$
$

 8.70
 5.70
 6.45
 5.85

 1.75
 0.64
 0.42
 0.38

Our  stock  is  listed  on  The  Nasdaq  Capital  Market  under  the  symbol  “SNGX.”  The  Nasdaq  Capital  Market  prices  set  forth
above  represent  inter-dealer  quotations,  without  adjustment  for  retail  mark-up,  mark-down  or  commission,  and  may  not
represent  the  prices  of  actual  transactions.  On  March  8,  2024,  the  last  reported  price  of  our  common  stock  quoted  on  The
Nasdaq Capital Market was $0.77 per share.

Unregistered Sales of Equity Securities

Other than as previously reported, we did not issue any unregistered shares during the year ended December 31, 2023. We
issued  a  total  of  146,199  shares  of  common  stock  to  two  lenders  upon  conversion  of  approximately  $100,000  of  principal
under  promissory  notes  at  a  conversion  price  of  $0.68  on  January  3,  2024.  Such  promissory  notes  may  be  converted  at
(i) 90% of the closing price of our common stock on the day before the delivery of the conversion notice with respect to the
first  442,400  shares  issuable  upon  conversion  as  of  March  8,  2024  and  (ii)  $1.70  with  respect  to  all  shares  issuable  upon
conversion in excess of the first 442,400 shares issued upon conversion as of March 8, 2024.

The  issuance  of  common  stock  as  described  above  was  exempt  under  Section  4(a)(2)  of  the  Securities  Act  of  1933,  as
amended. The recipients are knowledgeable, sophisticated and experienced in making investment decisions of this kind and
received adequate information about us or had adequate access to information about us.

Transfer Agent

Shares  of  our  common  stock  are  issued  in  registered  form.  Equiniti  Trust  Company,  LLC,  6201  15th Avenue, Brooklyn, NY
11219 (Telephone: (718) 921-8200; Facsimile: (718) 765-8719) is the registrar and transfer agent for shares of our common
stock.

Holders of Common Stock

As  of  March  8,  2024,  there  were  112  holders  of  record  of  our  common  stock.  As  of  such  date,  10,524,437  shares  of  our
common stock were issued and outstanding.

Dividends

We have never declared nor paid any cash dividends, and currently intend to retain all our cash and any earnings for use in
our business and, therefore, do not anticipate paying any cash dividends in the foreseeable future. Any future determination
to pay cash dividends will be at the discretion of the Board of Directors and will be dependent upon our

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consolidated financial condition, results of operations, capital requirements and such other factors as the Board of Directors
deems relevant.

Item 6. Selected Financial Data

Not applicable.

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

Our Business Overview

We are a late-stage biopharmaceutical company focused on developing and commercializing products to treat rare diseases
where there is an unmet medical need. We maintain two active business segments: Specialized BioTherapeutics and Public
Health Solutions.

Our  Specialized  BioTherapeutics  business  segment  is  developing  and  moving  toward  potential  commercialization  of
HyBryte™ (a proposed proprietary name of SGX301 or synthetic hypericin sodium), a novel photodynamic therapy (“PDT”),
utilizing topical synthetic hypericin activated with safe visible light for the treatment of cutaneous T-cell lymphoma (“CTCL”).
With successful completion of the Phase 3 FLASH (Fluorescent Light And Synthetic Hypericin) study, regulatory approval is
being pursued in the U.S. and Europe. Following submission of a new drug application (“NDA”) for HyBryte™ in the treatment
of CTCL, we received a refusal to file (“RTF”) letter from the U.S. Food and Drug Administration (“FDA”). We had a Type A
meeting  with  the  FDA  to  clarify  and  respond  to  the  issues  identified  in  the  RTF  letter  and  to  seek  additional  guidance
concerning  information  that  the  FDA  would  require  for  a  resubmitted  NDA  to  be  deemed  acceptable  to  file,  in  order  to
advance HyBryte™ towards U.S. marketing approval and commercialization. In order to accept an NDA filing for HyBryte™,
the  FDA  is  requiring  positive  results  from  a  second,  Phase  3  pivotal  study  in  addition  to  the  Phase  3,  randomized,  double-
blind,  placebo-controlled  FLASH  study  previously  conducted  in  this  orphan  indication.  Based  on  this  feedback,  we  are
collaboratively  engaging  in  active  discussions  with  both  the  FDA  and  the  European  Medicines  Agency  (“EMA”)  in  order  to
define the protocol and evaluate the feasibility of conducting the additional Phase 3 clinical trial evaluating HyBryte™ in the
treatment of CTCL in support of potential marketing approval.

Development programs in this business segment also include expansion of synthetic hypericin (SGX302) into psoriasis, our
first-in-class  Innate  Defense  Regulator  (“IDR”)  technology,  and  dusquetide  (SGX942  and  SGX945)  for  the  treatment  of
inflammatory diseases, including oral mucositis in head and neck cancer and aphthous ulcers in Behçet’s Disease.

Our Public Health Solutions business segment includes development programs for RiVax®, our ricin toxin vaccine candidate
and  SGX943,  our  therapeutic  candidate  for  antibiotic  resistant  and  emerging  infectious  disease  and  our  vaccine  programs
targeting  filoviruses  (such  as  Marburg  and  Ebola)  and  CiVax™,  our  vaccine  candidate  for  the  prevention  of  COVID-19
(caused by SARS-CoV-2). The development of our vaccine programs incorporates the use of our proprietary heat stabilization
platform technology, known as ThermoVax®. To date, this business segment has been supported with government grant and
contract  funding  from  the  National  Institute  of  Allergy  and  Infectious  Diseases,  the  Biomedical  Advanced  Research  and
Development Authority and the Defense Threat Reduction Agency.

An outline of our business strategy follows:

● Following positive primary endpoint results for the Phase 3 FLASH (Florescent Light Activated Synthetic Hypericin)
clinical trial of HyBryte™ in CTCL as well as further statistically significant improvement in response rates with longer
treatment (18 weeks compared to 12 and 6 weeks of treatment), collaboratively engage in discussions with both the
FDA and EMA in order to define the protocol and evaluate the feasibility of conducting a second clinical study in order
to advance HyBryte™ towards U.S. marketing approval and commercialization while continuing to explore potential
marketing approval and partnership in Europe.

● Expanding development of synthetic hypericin under the research name SGX302 into psoriasis with the conduct of a
Phase 2a clinical trial, following the positive Phase 3 FLASH study and positive proof-of-concept demonstrated in a
small Phase 1/2 pilot study in mild-to-moderate psoriasis patients.

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● Following  feedback  from  the  United  Kingdom  (“UK”)  Medicines  and  Healthcare  products  Regulatory  Agency
(“MHRA”)  that  a  second  Phase  3  clinical  trial  of  SGX942  (dusquetide)  in  the  treatment  of  oral  mucositis  would  be
required to support a marketing authorization; design a second study and attempt to identify a potential partner(s) to
continue this development program.

● Expanding development of dusquetide under the research name SGX945 into Behçet’s Disease with the conduct of a
Phase 2a clinical trial, where previous studies with dusquetide in oral mucositis have validated the biologic activity in
aphthous ulcers induced by chemotherapy and radiation.

● Continue  development  of  our  heat  stabilization  platform  technology,  ThermoVax®, in combination with programs for
RiVax®  (ricin  toxin  vaccine),  and  filovirus  vaccines  (targeting  Ebola,  Sudan,  and  Marburg  viruses  and  multivalent
combinations), with U.S. government and non-governmental organization funding support.

● Continue  to  apply  for  and  secure  additional  government  funding  for  each  of  our  Specialized  BioTherapeutics  and

Public Health Solutions programs through grants, contracts and/or procurements.

● Pursue  business  development  opportunities  for  pipeline  programs,  as  well  as  explore  all  strategic  alternatives,

including but not limited to merger/acquisition strategies.

● Acquire or in-license new clinical-stage compounds for development, as well as evaluate new indications with existing

pipeline compounds for development.

Corporate Information

We were incorporated in Delaware in 1987 under the name Biological Therapeutics, Inc. In 1987, we merged with Biological
Therapeutics, Inc., a North Dakota corporation, pursuant to which we changed our name to “Immunotherapeutics, Inc.” We
changed  our  name  to  “Endorex  Corp.”  in  1996,  to  “Endorex  Corporation”  in  1998,  to  “DOR  BioPharma,  Inc.”  in  2001,  and
finally to “Soligenix, Inc.” in 2009. Our principal executive offices are located at 29 Emmons Drive, Suite B-10, Princeton, New
Jersey 08540 and our telephone number is (609) 538-8200.

Our Product Candidates in Development

The following tables summarize our product candidates under development:

Soligenix Product Candidate
HyBryte™

Specialized BioTherapeutics Product Candidates

Therapeutic Indication

Stage of Development

Cutaneous T-Cell Lymphoma

55

treatment 

Phase  2 
trial  completed;  demonstrated
significantly higher response rate compared
trial  completed;
to  placebo;  Phase  3 
demonstrated  statistical  significance 
in
primary  endpoint  in  March  2020  (Cycle  1)
and  demonstrated  continued  improvement
response  with  extended
in 
treatment 
in  April  2020  (Cycle  2)  and
October  2020  (Cycle  3);  NDA  submitted
December  2022;  FDA  RTF  letter  received
February  2023;  Type  A  meeting  with  the
FDA convened April 2023, in which the FDA
determined  that  a  second  positive  Phase  3
study  would  be  required  to  support  a  NDA
submission;  actively  engaged 
formal
protocol discussions with both the FDA and
the  EMA  to  define  the  protocol  for,  and
feasibility  of  conducting,  an
evaluate 
additional  Phase  3  clinical 
(as
trial 
requested by the FDA); final outcome of

in 

    
    
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Soligenix Product Candidate

Therapeutic Indication

SGX302

Mild-to-Moderate Psoriasis

SGX942†

Oral Mucositis in Head and Neck Cancer

Stage of Development
these discussions anticipated in the first half
of 2024

Positive proof-of-concept demonstrated in a
small Phase 1/2 pilot study; Phase 2a
protocol and Investigation New Drug (“IND”)
clearance received from the FDA; Phase 2a
study remains ongoing having demonstrated
biological effect in Cohort 1 and clinically
meaningful benefit in Cohort 2

  criterion 

Phase  2 
trial  completed;  demonstrated
significant  response  compared  to  placebo
with  positive  long-term  (12  month)  safety
also  reported;  Phase  3  clinical  trial  results
announced  December  2020:  The  primary
endpoint  of  median  duration  of  severe  oral
mucositis  (“SOM”)  did  not  achieve  the  pre-
specified 
  statistical
  significance    (p≤0.05);    although  biological
activity  was  observed  with  a  56%  reduction
in the median duration of SOM from 18 days
in  the  placebo  group  to  8  days  in  the
full
SGX942 
dataset from Phase 3 study and designing a
second  Phase  3  clinical  trial;  continued
development  contingent  upon  identification
of partnership

treatment  group;  analyzed 

for 

SGX945

Aphthous Ulcers in Behçet’s Disease

Phase  2a  protocol  and 
IND  clearance
received  from  the  FDA;  Phase  2a  study  to
be initiated in the second half of 2024

Public Health Solutions†

Soligenix Product Candidate
ThermoVax®

Indication
Thermostability of vaccines for Ricin toxin,
Ebola, and Marburg viruses

   Pre-clinical

Stage of Development

RiVax®

SGX943

Vaccine against Ricin Toxin Poisoning

Phase 1a, 1b and 1c trials completed,
safety and neutralizing antibodies for
protection demonstrated

Therapeutic against Emerging Infectious
Diseases

Pre-clinical

† Contingent upon continued government contract/grant funding or other funding source.

Critical Accounting Policies

Our  management’s  discussion  and  analysis  of  our  financial  condition  and  results  of  operations  are  based  upon  our
consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in
the U.S. The preparation of our financial statements and related disclosures requires us to make estimates and assumptions
that  affect  the  reported  amounts  of  assets  and  liabilities,  costs  and  expenses  and  the  disclosure  of  contingent  assets  and
liabilities. 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

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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 the notes to our financial statements appearing at the
end  of  this  Annual  Report  on  Form  10-K,  we  believe  that  the  following  accounting  policies  are  those  most  critical  to  the
assumptions and estimates used in the preparation of our financial statements.

Revenue Recognition

Our  revenues  include  revenues  generated  from  government  contracts  and  grants.  The  revenue  from  government  contracts
and grants is based upon subcontractor costs and internal costs incurred that are specifically covered by the contracts and
grants,  plus  a  facilities  and  administrative  rate  that  provides  funding  for  overhead  expenses  and  management  fees.  These
revenues  are  recognized  when  expenses  have  been  incurred  by  subcontractors  or  when  we  incur  reimbursable  internal
expenses that are related to the government contracts and grants.

We  also  record  revenue  from  contracts  with  customers  in  accordance  with  Accounting  Standards  Codification  Topic  606
(“ASC  606”),  Revenue  From  Contracts  with  Customers.  Under  ASC  606,  an  entity  recognizes  revenue  when  its  customer
obtains control of promised goods or services, in an amount that reflects the consideration that 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.  We  only  apply  the  five-step  model  to  contracts  when  it  is  probable  that  we  will  collect  the  consideration  we  are
entitled  to  in  exchange  for  the  goods  or  services  we  transfer  to  the  customer.  At  contract  inception,  once  the  contract  is
determined to be within the scope of ASC 606, we assess the goods or services promised within each contract and determine
those that are performance obligations, and assess 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.

Certain amounts received from or billed to customers in accordance with contract terms are deferred and recognized as future
performance  obligations  are  satisfied.  All  amounts  earned  under  contracts  with  customers  other  than  sales-based  royalties
are  classified  as  license  revenues.  Sales-based  royalties  under  our  license  agreements  would  be  recognized  as  royalty
revenue at the later of (i) when the related sales occur, or (ii) when the performance obligation to which some or all of the
royalty has been allocated has been satisfied or partially satisfied. To date, we have not recognized any royalty revenue.

Research and Development Costs

As  part  of  the  process  of  preparing  our  financial  statements,  we  are  required  to  estimate  our  accrued  research  and
development  expenses.  This  process  involves  reviewing  open  contract  and  purchase  orders,  communicating  with  our
personnel to identify services that have been performed on our behalf and estimating the level of service performed and the
associated costs incurred for the services when we have not yet been invoiced or otherwise notified of the actual costs. The
majority  of  our  service  providers  invoice  us  in  arrears  for  services  performed,  on  a  pre-determined  schedule  or  when
contractual milestones are met; however, some require advance payments. We make estimates of our accrued expenses as
of each balance sheet date in our financial statements based on facts and circumstances known to us at that time. Examples
of estimated accrued research and development expenses include fees paid to:

● contract  research  organizations  (“CROs”)  in  connection  with  performing  research  activities  on  our  behalf  and

conducting preclinical studies and clinical trials on our behalf;

● investigative sites or other service providers in connection with clinical trials;

● vendors in connection with preclinical and clinical development activities; and

● vendors related to product manufacturing and distribution of preclinical and clinical supplies.

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We base our expenses related to preclinical studies and clinical trials on our estimates of the services received and efforts
expended pursuant to quotes and contracts with multiple CROs that conduct and manage preclinical studies and clinical trials
on  our  behalf.  The  financial  terms  of  these  agreements  are  subject  to  negotiation,  vary  from  contract  to  contract  and  may
result  in  uneven  payment  flows.  There  may  be  instances  in  which  payments  made  to  our  vendors  will  exceed  the  level  of
services  provided  and  result  in  a  prepayment  of  the  expense.  Payments  under  some  of  these  contracts  depend  on  factors
such as the successful enrollment of patients and the completion of clinical trial milestones. In accruing fees, we estimate the
time period over which services will be performed, enrollment of patients, number of sites active and the level of effort to be
expended in each period. If the actual timing of the performance of services or the level of effort varies from our estimate, we
adjust  the  accrual  or  amount  of  prepaid  expense  accordingly.  Although  we  do  not  expect  our  estimates  to  be  materially
different  from  amounts  actually  incurred,  our  understanding  of  the  status  and  timing  of  services  performed  relative  to  the
actual status and timing of services performed may vary and may result in us reporting amounts that are too high or too low in
any particular period. To date, we have not made any material adjustments to our prior estimates of accrued research and
development expenses.

Use of Estimates and Assumptions

The  preparation  of  financial  statements  in  conformity  with  accounting  principles  generally  accepted  in  the  U.S.  requires
management  to  make  estimates  and  assumptions  such  as  the  fair  value  of  stock  options  and  to  accrue  for  clinical  trials  in
process that affect the reported amounts in the financial statements and accompanying notes. Actual results could differ from
those estimates.

Material Changes in Results of Operations

Year Ended December 31, 2023 Compared to 2022

For the year ended December 31, 2023, we had a net loss of $6,140,730 as compared to a net loss of $13,798,339 for the
prior  year,  representing  decreased  net  loss  of  $7,657,609  or  55%.  The  decrease  in  net  loss  is  primarily  attributed  to
decreases  in  operating  expenses  and  interest  expense  as  well  as  an  increase  in  other  income.  For  the  year  ended
December 31, 2023, we had revenues of $839,359 as compared to $948,911 for the prior year, representing a decrease of
$109,552 or 12%. The decrease in revenues was primarily a result of the recognition of licensing revenue in 2022 partially
offset by an increase in grant revenue during 2023.

We incurred costs related to contract and grant revenues in the year ended December 31, 2023 and 2022 of $742,048 and
$550,822,  respectively,  representing  an  increase  of  $191,226  or  35%.  The  increase  in  costs  was  primarily  the  result  of  an
increase in costs relating to the HyBryte™ investigator-initiated study.

Our gross profit for the year ended December 31, 2023 was $97,311 or 12% of total revenues as compared to $398,089 or
42%  of  total  revenues  for  the  prior  year,  representing  a  decrease  of  $300,778  or  76%.  The  decrease  in  gross  profit  was
primarily  the  result  of  the  recognition  of  higher  margin  licensing  revenue  in  2022  and  the  lower  margin  grant  revenue
associated with the HyBryte™ investigator-initiated study during 2023.

Research and development expenses decreased by $4,631,390 or 58% to $3,312,699 for year ended December 31, 2023 as
compared  to  $7,944,089  for  the  prior  year.  The  decrease  in  research  and  development  spending  for  the  year  ended
December  31,  2023  was  primarily  related  to  the  decrease  in  manufacturing  and  regulatory  costs  associated  with  the
HyBryte™ NDA filing.

General  and  administrative  expenses  decreased  by  $2,210,352  or  33%, 
the  year  ended
December 31, 2023, as compared to $6,692,904 for the prior year. This decrease is primarily related to a reduction in legal
and consulting expenses.

to  $4,482,552 

for 

The  amendment  to  the  convertible  debt  financing  agreement  with  Pontifax  Medison  Finance  (“Pontifax”)  –  see  Note  5  –,
resulted  in  the  extinguishment  of  the  original  convertible  debt  for  accounting  purposes.  We  elected  to  account  for  the
amended convertible debt using the fair value option, which requires us to record changes in fair value as a component of
other  income  or  expense.    The  fair  value  of  the  convertible  debt  on  the  date  of  the  amendment  was  approximately
$3,304,000, which resulted in the recognition of a loss on extinguishment of approximately $394,000 on our accompanying
consolidated statements of operations during the year ended December 31, 2023. The fair value of the convertible debt as of
December 31, 2023 was approximately $3,260,934, which resulted in the recognition of $43,066 of other income from

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the change in the fair value of the convertible debt on our accompanying consolidated statements of operations during the
year  ended  December  31,  2023.  The  fair  value  of  the  convertible  debt  was  estimated  using  the  Monte  Carlo  valuation
method.

Total other expense for the year ended December 31, 2023 was $210,593 as compared to $714,370 of total other expense for
the prior year, reflecting a decrease of $503,777 or 71%. The decrease in total other expense was primarily associated with
the reduction in interest resulting from the repayment of a portion of the convertible debt principal balance and higher interest
income earned on cash balances.

The  State  of  New  Jersey’s  Technology  Business  Tax  Certificate  Program  allows  certain  high  technology  and  biotechnology
companies to sell unused NOL carryforwards to other New Jersey-based corporate taxpayers. We sold 2022, 2021 and 2020
New Jersey NOL carryforwards resulting in the recognition of income tax benefits, net of transaction costs of $1,767,803 and
$1,154,935  during  the  years  ended  December  31,  2023  and  2022,  respectively.  We  sold  our  2022  New  Jersey  NOLs  and
have recorded a receivable of $606,606 which is included in prepaid expenses and other current assets on the accompanying
consolidated  balance  sheet  for  the  year  ended  December  31,  2023.  We  have  not  yet  sold  our  2023  New  Jersey  NOL
carryforwards but may do so in the future. We will continue to explore opportunities to sell unused NOL carryforwards for the
year ended December 31, 2023. However, there can be no assurance as to the continuation or magnitude of this program in
future years.

Business Segments

We maintain two active business segments for the years ended December 31, 2023 and 2022: Specialized BioTherapeutics
and Public Health Solutions.

The  Specialized  BioTherapeutics  business  segment  had  revenue  of  $395,124  for  the  year  ended  December  31,  2023  as
compared to $31,929 for the year ended December 31, 2022, representing an increase of $363,195 or 100%. The increase
was  due  to  increased  reimbursable  development  activity  under  the  grant  to  support  the  investigator-initiated  study  of
HyBryte™ for expanded treatment in patients with early-stage CTCL.

Revenues  for  the  Public  Health  Solutions  business  segment  for  the  year  ended  December  31,  2023  were  $444,235  as
compared to $916,982 for the year ended December 31, 2022, representing a decrease of $472,747 or 52%. The decrease in
revenues was primarily the result of the recognition of licensing revenue in 2022 and the conclusion of the grant associated
with the development of SGX943.

Loss from operations for the Public Health Solutions business segment for the year ended December 31, 2023 was $36,531
as  compared  to  income  from  operations  of  $26,612  for  the  year  ended  December  31,  2022,  representing  a  decrease  of
$63,143 or 237%. The loss for the year ended December 31, 2023 is attributable to the recognition of licensing revenue in
2022 and additional expenses incurred due to the expiration of grants and contracts. Loss from operations for the Specialized
BioTherapeutics business segment for the year ended December 31, 2023 was $2,812,303 as compared to $7,614,988 for
the year ended December 31, 2022, representing a decreased loss of $4,802,685 or 63%. This decreased loss is primarily
attributed to the decrease in manufacturing and regulatory costs associated with the HyBryte™ NDA filing.

Financial Condition and Liquidity

Cash and Working Capital

As  of  December  31,  2023,  we  had  cash  and  cash  equivalents  of  $8,446,158  as  compared  to  $13,359,615  as  of
December  31,  2022,  representing  a  decrease  of  $4,913,457  or  37%.  As  of  December  31,  2023,  we  had  working  capital  of
$3,355,212, representing an increase of $6,018,933 as compared to a working capital deficit of ($2,663,721) for the prior year.
The decrease in cash and cash equivalents was primarily related to cash used in operating activities. The increase in working
capital is primarily the result of the net proceeds received from financing activities partially offset by the immediate paydown of
$5  million  of  outstanding  debt  principal  balance  and  any  accrued  interest  resulting  from  the  amendment  to  the  convertible
debt financing agreement with Pontifax during the year ended December 31, 2023.

We  believe  that  we  have  sufficient  resources  available  to  support  our  development  activities  and  business  operations  and
timely satisfy our obligations as they become due into the fourth quarter of 2024. We do not have sufficient cash and cash
equivalents as of the date of filing this Annual Report on Form 10-K to support our operations for at least the 12 months

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following the date the financial statements are issued. These conditions raise substantial doubt about our ability to continue
as a going concern through 12 months after the date that the financial statements are issued.

To  alleviate  the  conditions  that  raise  substantial  doubt  about  our  ability  to  continue  as  a  going  concern,  we  plan  to  secure
additional capital, potentially through a combination of public or private equity offerings and strategic transactions, including
potential  alliances  and  drug  product  collaborations,  securing  additional  proceeds  from  government  contract  and  grant
programs,  securing  additional  proceeds  available  from  the  sale  of  shares  of  our  common  stock  via  an  At  Market  Issuance
Sales Agreement and potentially amending the loan agreement with Pontifax to reduce the conversion price in order to allow
for  conversion  of  a  portion  of  the  debt  which  will  reduce  our  debt  repayments;  however,  none  of  these  alternatives  are
committed  at  this  time.  There  can  be  no  assurance  that  we  will  be  successful  in  obtaining  sufficient  funding  on  terms
acceptable to us to fund continuing operations, if at all, identify and enter into any strategic transactions that will provide the
capital  that  we  will  require  or  achieve  the  other  strategies  to  alleviate  the  conditions  that  raise  substantial  doubt  about  our
ability  to  continue  as  a  going  concern.  If  none  of  these  alternatives  are  available,  or  if  available,  are  not  available  on
satisfactory terms, we will not have sufficient cash resources and liquidity to fund our business operations for at least the 12
months  following  the  date  the  financial  statements  are  issued.  The  failure  to  obtain  sufficient  capital  on  acceptable  terms
when needed may require us to delay, limit, or eliminate the development of business opportunities and our ability to achieve
our  business  objectives  and  our  competitiveness,  and  our  business,  financial  condition,  and  results  of  operations  will  be
materially  adversely  affected.  In  addition,  market  instability,  including  as  a  result  of  geopolitical  instability,  may  reduce  our
ability to access capital, which could negatively affect our liquidity and ability to continue as a going concern. In addition, the
perception that we may not be able to continue as a going concern may cause others to choose not to deal with us due to
concerns about our ability to meet our contractual obligations.

The accompanying financial statements have been prepared on a going concern basis, which contemplates the realization of
assets  and  satisfaction  of  liabilities  in  the  normal  course  of  business,  and  do  not  include  any  adjustments  relating  to
recoverability  and  classification  of  recorded  asset  amounts  or  the  amounts  and  classification  of  liabilities  that  might  be
necessary should we be unable to continue as a going concern.

Our plans with respect to our liquidity management include, but are not limited to, the following:

● We have up to $844,000 in active government grant funding still available as of December 31, 2023 to support our
associated research programs through May 2026, provided the federal agencies do not elect to terminate the grants
for convenience. We plan to submit additional contract and grant applications for further support of our programs with
various  funding  agencies.  However,  there  can  be  no  assurance  that  we  will  obtain  additional  governmental  grant
funding;

● We  have  continued  to  use  equity  instruments  to  provide  a  portion  of  the  compensation  due  to  vendors  and

collaboration partners and expect to continue to do so for the foreseeable future;

● We will continue to pursue NOL sales in the state of New Jersey pursuant to its Technology Business Tax Certificate

Transfer Program if the program is available;

● We plan to pursue potential partnerships for pipeline programs as well as continue to explore merger and acquisition

strategies. However, there can be no assurances that we can consummate such transactions;

● We  completed  a  public  offering  of  2,301,500  shares  of  our  common  stock,  pre-funded  warrants  to  purchase
4,237,000 shares of our common stock and common warrants to purchase up to 6,538,500 shares of our common
stock  at  a  combined  public  offering  price  of  $1.30.  The  pre-funded  warrants  had  an  exercise  price  of  $0.001.  The
common warrants have an exercise price of $1.50 per share, are exercisable immediately and expire five years from
the issuance date. The total gross proceeds to us from this offering were approximately $8.5 million before deducting
commissions  and  other  estimated  offering  expenses.  We  plan  to  use  the  proceeds  for  further  support  of  our
programs, as well as for working capital; and

● We are currently evaluating additional equity/debt financing opportunities on an ongoing basis and may execute them
when  appropriate.  However,  there  can  be  no  assurances  that  we  can  consummate  such  a  transaction,  or
consummate a transaction at favorable pricing.

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Reverse Stock Split

On February 9, 2023, we completed a reverse stock split of our issued and outstanding shares of common stock at a ratio of
one-for-fifteen, whereby, every fifteen shares of our issued and outstanding common stock was converted automatically into
one issued and outstanding share of common stock without any change in the par value per share. No fractional shares were
issued as a result of the reverse stock split. Any fractional shares that would otherwise have resulted from the reverse stock
split  were  rounded  up  to  the  next  whole  number.  Our  common  stock  began  trading  on  The  NASDAQ  Capital  Market  on  a
reverse split basis at the market opening on February 10, 2023. All share and per share data have been restated to reflect
this reverse stock split.

Expenditures

Under our budget and based upon our existing product development agreements and license agreements pursuant to letters
of  intent  and  option  agreements,  we  expect  our  total  research  and  development  expenditures  for  the  year  ending
December 31, 2024 to be approximately $5.5 million before any contract or grant reimbursements, of which approximately all
relates  to  the  Specialized  BioTherapeutics  business  segment.  We  anticipate  grant  reimbursements  for  the  same  period  of
approximately  $0.3  million  to  offset  research  and  development  expenses  in  the  Specialized  BioTherapeutics  business
segment.

The  table  below  details  our  costs  for  research  and  development  by  program  and  amounts  reimbursed  for  the  years  ended
December 31, 2023 and 2022:

Research & Development Expenses
RiVax® and ThermoVax® Vaccines
SGX942 (Dusquetide)
CiVax™
HyBryte™ (SGX301 or synthetic hypericin)
Other
Total

Reimbursed under Government Contracts and Grants
RiVax® and ThermoVax® Vaccines
CiVax™
SGX943
HyBryte™ (investigator-initiated study)
Total
Grand Total

Contractual Obligations

2023

2022

$

$

$

$

 133,186
 (28,570)
 —
 2,698,609
 509,474
 3,312,699

 —
 311,495
 35,429
 395,124
 742,048
 4,054,747

$

$

$

$

 346,894
 295,376
 22,901
 6,831,827
 447,091
 7,944,089

 22,161
 398,001
 98,731
 31,929
 550,822
 8,494,911

We have licensing fee commitments of approximately $230,000 as of December 31, 2023 over the next five years for several
licensing agreements with partners and universities. Additionally, we have collaboration and license agreements, which upon
clinical or commercialization success may require the payment of milestones of up to approximately $13.2 million, royalties on
net sales of covered products ranging from 2% to 3%, sub-license IND milestones on covered products of up to approximately
$200,000, sub-license income royalties on covered products up to 15% and sub-license global net sales royalties on covered
products  ranging  from  1.5%  to  2.5%,  if  and  when  achieved.  However,  there  can  be  no  assurance  that  clinical  or
commercialization success will occur.

We currently lease approximately 6,200 square feet of office space at 29 Emmons Drive, Suite B-10 in Princeton, New Jersey.
This  office  space  currently  serves  as  our  corporate  headquarters,  and  both  of  our  business  segments  (Specialized
BioTherapeutics  and  Public  Health  Solutions),  operate  from  this  space.  Pursuant  to  an  amendment  on  June  21,  2022,  the
lease has been extended to October 2025. The current rent of $11,367 per month will be maintained until November 2024
when it will be increased to $11,625 where it will remain until expiration. Our office space is sufficient for our current needs.

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In September 2014, we entered into an asset purchase agreement with Hy Biopharma pursuant to which we acquired certain
intangible  assets,  properties  and  rights  of  Hy  Biopharma  related  to  the  development  of  Hy  BioPharma’s  synthetic  hypericin
product. As consideration for the assets acquired, we initially paid $275,000 in cash and issued 12,328 shares of common
stock  with  a  fair  value  based  upon  our  stock  price  on  the  date  of  grant  of  $3.75  million.  These  amounts  were  charged  to
research  and  development  expense  during  the  third  quarter  of  2014  as  the  assets  will  be  used  in  our  research  and
development activities and do not have alternative future use pursuant to generally accepted accounting principles in the U.S.

In January 2020, our Board of Directors authorized an amendment to Dr. Schaber’s employment agreement to increase the
number  of  shares  of  common  stock  from  334  to  33,334,  issuable  to  Dr.  Schaber  immediately  prior  to  the  completion  of  a
transaction,  or  series  or  a  combination  of  related  transactions,  negotiated  by  our  Board  of  Directors  whereby,  directly  or
indirectly, a majority of our capital stock or a majority of our assets are transferred from us and/or our stockholders to a third
party.

In March 2020, we filed a prospectus supplement covering the offer and sale of up to 130,413 shares of our common stock,
which  were  issued  to  Hy  Biopharma.  We  were  required  to  issue  the  shares  to  Hy  Biopharma  as  payment  following  the
achievement  of  a  milestone  under  the  asset  purchase  agreement,  specifically,  the  Phase  3  clinical  trial  of  HyBryte™  being
successful  in  the  treatment  of  CTCL.  The  number  of  shares  of  our  common  stock  issued  to  Hy  Biopharma  was  calculated
using an effective price of $38.40 per share, based upon a formula set forth in the asset purchase agreement.

Provided the final success-oriented milestone is attained, we will be required to make a payment of up to $5 million, if and
when achieved. The potential future payment will be payable in our common stock, not to exceed 19.9% of our outstanding
stock.

In  December  2020,  we  entered  into  a  $20  million  convertible  debt  financing  agreement  with  Pontifax,  the  healthcare-
dedicated venture and debt fund of the Pontifax life science funds. Under the terms of the agreement with Pontifax, we had
access to up to $20 million in convertible debt financing in three tranches, which will mature on June 15, 2025 and had an
interest only period through December 2022 with a rate of 8.47% on borrowed amounts and a 1% rate on amounts available
but not borrowed as an unused line of credit fee. After the interest-only period, the outstanding principal was to be repaid in
quarterly payments of $1 million each commencing in the first quarter of 2023. The agreement is secured by a lien covering
substantially all of our assets, other than intellectual property.

Upon  the  closing  of  this  transaction,  we  borrowed  the  first  tranche  of  $10  million.  We  did  not  utilize  our  option  to  draw  the
second or third tranche of $5 million each, which expired on December 15, 2021 and March 15, 2022, respectively.

On April 19, 2023, we entered into an amendment to the convertible debt financing agreement with Pontifax. The amendment
required  the  immediate  payment  of  $5  million  of  the  outstanding  principal  balance  and  any  accrued  interest,  waived  any
prepayment charge in connection with the repayment of this amount and resulted in an outstanding principal balance of $3
million. The amendment also provided for a new interest only period from the date of the amendment through June 30, 2024,
reduced quarterly principal repayments from $1 million to $750,000 and eliminated the minimum cash covenant. Further, the
Amendment reduced the conversion price with respect to the remaining principal amount under the agreement to (i) 90% of
the closing price of our common stock on the day before the delivery of the conversion notice with respect to the first 588,599
shares  of  our  common  stock  issuable  upon  conversion  and  to  (ii)  $1.70  with  respect  to  all  shares  of  our  common  stock
issuable upon conversion in excess of the first 588,599 shares so issued. The remaining terms of the agreement remain in
effect without modification.

The  amendment  to  the  convertible  debt  financing  agreement  with  Pontifax  resulted  in  the  extinguishment  of  the  original
convertible debt for accounting purposes. We elected to account for the amended convertible debt using the fair value option,
which  requires  us  to  record  changes  in  fair  value  as  a  component  of  other  income  or  expense.    The  fair  value  of  the
convertible debt on the date of the amendment was approximately $3,304,000, which resulted in the recognition of a loss on
extinguishment  of  approximately  $394,000  on  our  accompanying  consolidated  statements  of  operations  during  the  year
ended December 31, 2023.  The fair value of the convertible debt as of December 31, 2023 was approximately $3,260,934,
which resulted in the recognition of $43,066 of other income from the change in the fair value of the convertible debt on our
accompanying  consolidated  statements  of  operations  during  the  year  ended  December  31,  2023.  The  fair  value  of  the
convertible debt was estimated using the Monte Carlo valuation method.

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Pontifax may elect to convert the outstanding loan drawn under the first tranche into shares of our common stock at any time
prior to repayment. We also have the ability to force the conversion of the loan into shares of our common stock, subject to
certain conditions.

Contingencies

We  follow  subtopic  450-20  of  the  FASB  Accounting  Standards  Codification  to  report  accounting  for  contingencies.  Certain
conditions may exist as of the date the financial statements are issued, which may result in a loss to us but which will only be
resolved when one or more future events occur or fail to occur. We assess such contingent liabilities, and such assessment
inherently involves an exercise of judgment. A liability is only recorded if management determines that it is both probable and
reasonably estimable.

CARES Act Employee Retention Credit

The Coronavirus Aid, Relief, and Economic Security Act provides for an employee retention credit (“CARES ERC”), which is a
refundable  tax  credit  equal  to  70%  of  qualified  wages  paid  to  employees  during  a  quarter,  capped  at  $10,000  of  qualified
wages per employee.

We qualified for the CARES ERC for qualified wages through September 30, 2021. We have submitted filings for refunds of
the  CARES  ERC  but  cannot  reasonably  estimate  when  or  if  we  will  receive  any  or  all  of  the  requested  refunds.  We  have
elected to follow subtopic 450-30 of the FASB Accounting Standards Codification and to account for the CARES ERC only
when all uncertainties regarding realization have been resolved. During October 2023, we received a refund of $120,771. The
refund was recorded as other income on our accompanying consolidated statements of operations.

COVID-19

Based on the current outbreak of SARS-CoV-2, the pathogen responsible for COVID-19, which has already had an impact on
financial markets, there could be additional repercussions to our operating business, including but not limited to, the sourcing
of materials for product candidates, manufacture of supplies for preclinical and/or clinical studies, delays in clinical operations,
which may include the availability or the continued availability of patients for trials due to such things as quarantines, conduct
of patient monitoring and clinical trial data retrieval at investigational study sites.

COVID-19 affected our operations but did not have a material impact on our business, operating results, financial condition or
cash flows as of and for the year ended December 31, 2023.

The future impact of the outbreak is highly uncertain and cannot be predicted, and we cannot provide any assurance that the
outbreak will not have a material adverse impact on our operations or future results or filings with regulatory health authorities.
The extent of the impact to us, if any, will depend on future developments, including actions taken to contain the coronavirus.

Item 8. Financial Statements and Supplementary Data

The information required by this Item 8 is contained on pages F-1 through F-22 of this Annual Report on Form 10-K and is
incorporated herein by reference.

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

On  September  15,  2023,  we  filed  a  Form  8-K  announcing  a  change  in  our  independent  registered  public  accounting  firm.
Subsequent to the filing of our Annual Report on Form 10-K for the year ended December 31, 2022 and the Proxy Statement
for our 2023 Annual Meeting of Stockholders, the Audit Committee of our Board of Directors conducted a competitive process
to  determine  our  independent  registered  public  accounting  firm  for  the  fiscal  year  ending  December  31,  2023.  The  Audit
Committee  solicited  information  from  several  independent  registered  public  accounting  firms,  including  EisnerAmper  LLP
(“EisnerAmper”), our former independent registered public accounting firm, in this process.

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Following  receipt  and  review  of  proposals  from  the  independent  registered  public  accounting  firms  that  participated  in  the
process, the Audit Committee of our Board of Directors recommended and authorized the dismissal of EisnerAmper as our
independent registered public accounting firm, and authorized the engagement of Cherry Bekaert LLP (“Cherry Bekaert”) to
serve as our independent registered public accounting firm for the fiscal year ending December 31, 2023. The termination of
EisnerAmper  as  our  independent  registered  public  accounting  firm  became  effective  immediately,  with  Cherry  Bekaert
commencing work with respect to our unaudited interim financial statements as of and for the quarter ended September 30,
2023, and the filing of the related Quarterly Report on Form 10-Q.

No audit report of EisnerAmper on our financial statements for either of the past two fiscal years contained an adverse opinion
or a disclaimer of opinion, or was qualified or modified as to uncertainty, audit scope, or accounting principles.  The report of
EisnerAmper on our financial statements for the fiscal year ended December 31, 2022 was prepared assuming that we would
continue as a going concern and included an explanatory paragraph regarding substantial doubt about our ability to continue
as  a  going  concern  as  result  of  recurring  losses  from  operations  and  an  expectation  that  losses  would  be  incurred  for  the
foreseeable future.

During  our  two  most  recent  fiscal  years  and  subsequent  interim  period  preceding  EisnerAmper’s  dismissal,  there  was  no
“disagreement” (as described in Item 304(a)(1)(iv) of Regulation S-K and the related instructions) with EisnerAmper on any
matter  of  accounting  principles  or  practices,  financial  statement  disclosure,  or  auditing  scope  or  procedures  which,  if  not
resolved to the satisfaction of EisnerAmper, would have caused EisnerAmper to make reference to the matter in their report.

During  our  two  most  recent  fiscal  years  and  subsequent  interim  period  preceding  EisnerAmper’s  dismissal,  there  were  no
“reportable events” requiring disclosure pursuant to Item 304(a)(1)(v) of Regulation S-K.  Our principal executive officer and
principal  financial  officer  concluded  that,  as  of  June  30,  2023,  our  disclosure  controls  and  procedures  were  not  effective
because of material weaknesses in our internal control over financial reporting. Specifically, our management concluded that
our processes and procedures around the accounting for complex financial instruments issued by us resulted in a delay in
finalizing the financial statements.  Inasmuch as such delay caused us to utilize the five-day extension of the original due date
of  the  Quarterly  Report  on  Form  10-Q  provided  by  Rule  12b-25  of  the  Exchange  Act,  our  management  concluded  that  our
disclosure controls and procedures were not effectively designed to ensure that information required to be disclosed by us in
reports we file or submit under the Exchange Act are recorded, processed, summarized and reported within the time periods
specified in the rules and forms of the SEC.

We  provided  EisnerAmper  with  a  copy  of  the  September  15,  2023  Form  8-K  prior  to  its  filing  with  the  SEC  and  requested
EisnerAmper to furnish us with a letter addressed to the SEC stating whether EisnerAmper agreed with the statements made
by us in response to Item 304(a) of Regulation S-K and, if not, stating the respects in which it did not agree.

In  conjunction  with  the  request  for  proposal  and  review  of  information  from  other  independent  registered  public  accounting
firms  noted  above,  on  September  15,  2023,  we  engaged  Cherry  Bekaert  to  serve  as  our  independent  registered  public
accounting firm to audit our financial statements for the fiscal year ending December 31, 2023, and to perform a review of our
interim financial statements for the third fiscal quarter of 2023.

During our two most recent fiscal years and subsequent interim period preceding Cherry Bekaert’s engagement, neither we
nor  anyone  on  our  behalf  consulted  Cherry  Bekaert  regarding  (i)  the  application  of  accounting  principles  to  a  specified
transaction, either completed or proposed, or the type of audit opinion that might be rendered on our financial statements, and
no written report or oral advice was provided by Cherry Bekaert to us that Cherry Bekaert concluded was an important factor
considered by us in reaching a decision as to the accounting, auditing or financial reporting issue, or (ii) any matter that was
either the subject of a “disagreement” (as described in Item 304(a)(1)(iv) of Regulation S-K and the related instructions) or a
“reportable event” (as described in Item 304(a)(1)(v) of Regulation S-K).

Item 9A. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

Disclosure  controls  and  procedures  are  our  controls  and  other  procedures  that  are  designed  to  ensure  that  information
required to be disclosed by us in the reports that we file or submit under the Securities Exchange Act of 1934, as amended
(the  “Exchange  Act”)  is  recorded,  processed,  summarized  and  reported  within  the  time  periods  specified  in  the  SEC’s
rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure
that information required to be disclosed by us in the reports that we file under the Exchange Act is accumulated and

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communicated to our management, including our principal executive officer and principal financial officer, as appropriate, to
allow  timely  decisions  regarding  required  disclosure.  Our  management  recognizes  that  any  controls  and  procedures,  no
matter  how  well  designed  and  operated,  can  only  provide  reasonable  assurance  of  achieving  their  objectives  and
management necessarily applies its judgment in evaluating the possible controls and procedures.

Our  management  has  evaluated,  with  the  participation  of  our  principal  executive  officer  and  principal  financial  officer,  the
effectiveness of our disclosure controls and procedures (as such term is defined in Rules 13a-15(e) and 15d-15(e) under the
Exchange Act) as of the end of the period covered by this report. Based upon that evaluation, our management, including our
principal executive officer and principal financial officer, has concluded that, as of the end of the period covered by this report,
our disclosure controls and procedures were effective at the reasonable assurance level.

Management’s Annual Report on Internal Control over Financial Reporting

Company  management  is  responsible  for  establishing  and  maintaining  adequate  internal  control  over  financial  reporting.
Internal  control  over  financial  reporting  is  a  process  designed  by,  or  under  the  supervision  of,  our  principal  executive  and
principal  financial  officers  and  effected  by  our  Board  of  Directors,  management  and  other  personnel  to  provide  reasonable
assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in
accordance with generally accepted accounting principles and includes those policies and procedures that:

● pertain  to  the  maintenance  of  records  that  in  reasonable  detail  accurately  and  fairly  reflect  the  transactions  and

dispositions of our assets;

● provide  reasonable  assurance  that  transactions  are  recorded  as  necessary  to  permit  preparation  of  financial
statements in accordance with generally accepted accounting principles, and that our receipts and expenditures are
being made only in accordance with authorizations of management and directors; and

● provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition

of our assets that could have a material effect on the financial statements.

Because of inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Projections
of any evaluation of effectiveness to future periods are subject to the risks that controls may become inadequate because of
changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Management assessed the effectiveness of our internal control over financial reporting as of December 31, 2023. In making
this  assessment,  management  used  the  criteria  set  forth  by  the  Committee  of  Sponsoring  Organizations  of  the  Treadway
Commission (“COSO”) in Internal Control-Integrated Framework, 2013.

Based  on  our  assessment,  management  has  concluded  that,  as  of  December  31,  2023,  our  internal  control  over  financial
reporting is effective.

Changes in Internal Control over Financial Reporting

There  were  no  changes  in  our  internal  control  over  financial  reporting  identified  in  connection  with  the  evaluation  of  such
internal control that occurred during our last fiscal quarter that have materially affected, or are reasonably likely to materially
affect, our internal control over financial reporting.

Item 9B. Other Information

Item 9C Disclosure Regarding Foreign Jurisdictions That Prevent Inspections

Not applicable.

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Item 10. Directors, Executive Officers and Corporate Governance

PART III

The  table  below  contains  information  regarding  the  current  members  of  the  Board  of  Directors  and  executive  officers.  The
ages of individuals are provided as of March 15, 2024.

Name
Christopher J. Schaber, PhD
Gregg A. Lapointe, CPA, MBA
Diane L Parks, MBA
Robert J. Rubin, MD
Jerome B. Zeldis, MD, PhD
Jonathan Guarino, CPA, CGMA
Oreola Donini, PhD
Richard Straube, MD

    Age    
57
65
71
78
73
51
52
72

Position

Chairman of the Board, Chief Executive Officer and President
Director
Director
Director
Director
Chief Financial Officer, Senior Vice President and Corporate Secretary
Chief Scientific Officer and Senior Vice President
Chief Medical Officer and Senior Vice President

Christopher  J.  Schaber,  PhD  has  over  30  years  of  experience  in  the  pharmaceutical  and  biotechnology  industry.
Dr.  Schaber  has  been  our  President  and  Chief  Executive  Officer  and  a  director  since  August  2006.  He  was  appointed
Chairman of the Board in October 2009. He also has served on the board of directors of the Biotechnology Council of New
Jersey  (“BioNJ”)  since  January  2009  and  the  Alliance  for  Biosecurity  since  October  2014,  and  has  been  a  member  of  the
corporate  council  of  the  National  Organization  for  Rare  Disorders  (“NORD”)  since  October  2009.  He  also  serves  on  the
scientific advisory board for private start-up medical device company, Simphotek, Inc. Prior to joining Soligenix, Dr. Schaber
served from 1998 to 2006 as Executive Vice President and Chief Operating Officer of Discovery Laboratories, Inc., where he
was responsible for overall pipeline development and key areas of commercial operations, including regulatory affairs, quality
control  and  assurance,  manufacturing  and  distribution,  pre-clinical  and  clinical  research,  and  medical  affairs,  as  well  as
coordination  of  commercial  launch  preparation  activities.  From  1996  to  1998,  Dr.  Schaber  was  a  co-founder  of  Acute
Therapeutics, Inc., and served as its Vice President of Regulatory Compliance and Drug Development. From 1994 to 1996,
Dr. Schaber was employed by Ohmeda PPD, Inc., as Worldwide Director of Regulatory Affairs and Operations. From 1989 to
1994, Dr. Schaber held a variety of regulatory, development and operations positions with The Liposome Company, Inc., and
Elkins-Sinn  Inc.,  a  division  of  Wyeth-Ayerst  Laboratories.  Dr.  Schaber  received  his  BA  degree  from  Western  Maryland
College, his MS degree in Pharmaceutics from Temple University School of Pharmacy and his PhD degree in Pharmaceutical
Sciences from the Union Graduate School. During his career, Dr. Schaber has played a significant role in raising in excess of 
$350  million  through  both  public  offerings  and  private  placements,  as  well  as  approximately  $100  million  in  non-dilutive
funding awards from state and federal governmental agencies. Dr. Schaber was selected to serve as a member of our Board
of  Directors  because  of  his  extensive  experience  in  drug  development  and  pharmaceutical  operations,  including  his
experience as a senior executive officer with our Company and Discovery Laboratories, Inc., and as a member of the board of
directors of BioNJ and Simphotek; because of his proven ability to raise funds and provide access to capital; and because of
his advanced degrees in science and business.

Gregg  A.  Lapointe,  CPA,  MBA  has  been  a  director  since  March  2009.  Mr.  Lapointe  is  currently  CEO  of  Cerium
Pharmaceuticals,  Inc.  and  serves  on  the  board  of  directors  of  Rigel  Pharmaceuticals,  Inc.,  and  Astria  Therapeutics,  Inc.
ImmunoCellular  Therapeutics  Ltd.,  Raptor
the  board  of  directors  of 
Mr.  Lapointe  has  previously  served  on 
Pharmaceuticals,  Inc.,  SciClone  Pharmaceuticals,  Inc.,  the  Pharmaceuticals  Research  and  Manufacturers  of  America
(PhRMA), Questcor Pharmaceuticals, Inc. and the board of trustees of the Keck Graduate Institute of Applied Life Sciences.
He  previously  served  in  varying  roles  for  Sigma-Tau  Pharmaceuticals,  Inc.  (now  known  as  Leadiant  Biosciences,  Inc.),  a
private  biopharmaceutical  company,  from  September  2001  through  February  2012,  including  Chief  Operating  Officer  from
November 2003 to April 2008 and Chief Executive Officer from April 2008 to February 2012. From May, 1996 to August 2001,
he served as Vice President of Operations and Vice President, Controller of AstenJohnson, Inc. (formerly JWI Inc.). Prior to
that,  Mr.  Lapointe  spent  several  years  in  the  Canadian  medical  products  industry  in  both  distribution  and  manufacturing.
Mr.  Lapointe  began  his  career  at  Price  Waterhouse.  Mr.  Lapointe  received  his  B.A.  degree  in  Commerce  from  Concordia
University in Montreal, Canada, a graduate diploma in Accountancy from McGill University and his M.B.A. degree from Duke
University. He is a C.P.A. in the state of Illinois. Mr. Lapointe was selected to serve as a member of our Board of Directors
because  of  his  significant  experience  in  the  areas  of  global  strategic  planning  and  implementation,  business  development,
corporate finance, and acquisitions, and his experience as an executive officer and board member in the pharmaceutical and
medical products industries.

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Diane L. Parks, MBA has been a director since July 2019. From February 2016 until July 2018, she served as Head of U.S.
Commercial  and  Senior  Vice  President  of  Marketing,  Sales  &  Market  Research  at  Kite  Pharma,  Inc.,  a  privately-held
biopharma company developing cancer immunotherapy products with a primary focus on genetically engineered autologous T
cell  therapy  with  chimeric  antigen  receptors.  From  October  2014  to  October  2015,  Ms.  Parks  served  as  Vice  President  of
Global Marketing at Pharmacyclics LLC, a privately-held biopharmaceutical company primarily focused on the development of
cancer  therapies.  Prior  to  Pharmacyclics  LLC,  Ms.  Parks  held  senior  leadership  roles  as  Vice  President  of  Sales  for
Amgen, Inc., a publicly-traded biopharmaceutical company, representing oncology and nephrology products, and Senior Vice
President  of  Specialty  Biotherapeutics  and  Managed  Care  at  Genentech,  Inc.,  a  biotechnology  company  that  discovers,
develops,  manufactures  and  commercializes  medicines  to  treat  patients  with  serious  or  life-threatening  medical  conditions
that  was  acquired  by  Roche  Holding  AG  in  2009.  At  Genentech,  she  led  the  launches  of  multiple  products  as  well  as
commercial development of Lucentis® and Rituxan®. Since May 2019, she has been a member of the board of directors of
Calliditas  Therapeutics  AB,  a  biopharmaceutical  company,  the  shares  of  which  are  traded  on  the  Nasdaq  Stockholm
Exchange, that is developing and commercializing pharmaceutical products for patients with significant unmet medical needs
in  niche  indications.  She  is  also  a  member  of  the  board  of  directors  of  Kura  Oncology,  a  biopharmaceutical  company,  the
shares  of  which  are  traded  on  US  Nasdaq,  that  is  developing  a  pipeline  of  precision  medicines  for  the  treatment  of  solid
tumors  and  blood  cancers.  Since  October  2019  Ms.  Parks  has  been  a  member  of  the  board  of  directors  for  TriSalus  Life
Sciences,  an  early  stage  company  focused  on  improving  patient  outcomes  in  pancreatic  and  other  highly  intractable  solid
tumors.  Ms.  Parks  holds  a  BS  from  Kansas  State  University  and  a  master’s  of  business  administration  in  marketing  from
Georgia State University. She has been a commercial leader in the biotech and pharma industry for over 30 years. Ms. Parks
was selected to serve as a member of our Board of Directors because of her over 30 years’ experience as a businesswoman
and  commercial  executive  with  an  extensive  record  of  driving  profitable  growth  for  large  pharmaceutical  and  biotech
companies.

Robert J. Rubin, MD has been a director since October 2009. Dr. Rubin was a clinical professor of medicine at Georgetown
University from 1995 until 2012 when he was appointed a Distinguished Professor of Medicine. From 1987 to 2001, he was
President  of  the  Lewin  Group  (purchased  by  Quintiles  Transnational  Corp.  in  1996),  an  international  health  policy  and
management consulting firm. From 1994 to 1996, Dr. Rubin served as Medical Director of ValueRx, a pharmaceutical benefits
company. From 1992 to 1996, Dr. Rubin served as President of Lewin-VHI, a health care consulting company. From 1987 to
1992,  he  served  as  President  of  Lewin-ICF,  a  health  care  consulting  company.  From  1984  to  1987,  Dr.  Rubin  served  as  a
principal of ICF, Inc., a health care consulting company. From 1981 to 1984, Dr. Rubin served as the Assistant Secretary for
Planning and Evaluation at the Department of Health and Human Services and as an Assistant Surgeon General in the U.S.
Public Health Service. Dr. Rubin has served on the Board of BioTelemetry, Inc. (formerly known as CardioNet, Inc.) from 2007
to February 2021. He is currently on the Board of Cerium Pharmaceuticals where he is also the acting Chief Medical Officer
since  July  2022.  He  is  a  board  certified  nephrologist  and  internist.  Dr.  Rubin  received  an  undergraduate  degree  in  Political
Science  from  Williams  College  and  his  medical  degree  from  Cornell  University  Medical  College.  Dr.  Rubin  was  selected  to
serve  as  a  member  of  our  Board  of  Directors  because  of  his  vast  experience  in  the  health  care  industry,  including  his
experience  as  a  nephrologist,  internist,  clinical  professor  of  medicine  and  Assistant  Surgeon  General,  and  his  business
experience in the pharmaceutical industry.

Jerome  B.  Zeldis,  MD,  PhD  has  been  a  director  since  June  2011.  In  March  2023  Dr.  Zeldis  retired  as  Executive  Vice
President, Research and Development of Neximmune. He was the Chief Medical Officer and President of Clinical Research,
Drug  Safety  and  Regulatory  of  Sorrento  Therapeutics,  Inc.  and  Celularity,  Inc.  Previously,  Dr.  Zeldis  was  Chief  Executive
Officer  of  Celgene  Global  Health  and  Chief  Medical  Officer  of  Celgene  Corporation,  a  publicly  traded,  fully  integrated
biopharmaceutical company. He was employed by Celgene from 1997 to 2016. From September 1994 to February 1997, Dr.
Zeldis  worked  at  Sandoz  Research  Institute  and  the  Janssen  Research  Institute  in  both  clinical  research  and  medical
development. He has been a board member of several biotechnology companies and is currently on the boards of Metastat,
Inc.,  PTC  Therapeutics  Inc.,  BioSig  Technologies,  Inc.,  the  Castleman's  Disease  Organization  and  Alliqua,  Inc.  He  has
previously served on the boards of the NJ Chapter of the Arthritis Foundation and PTC Therapeutics, Inc. Additionally, he has
served  as  Assistant  Professor  of  Medicine  at  the  Harvard  Medical  School  from  July  1987  to  September  1988,  Associate
Professor  of  Medicine  at  University  of  California,  Davis  from  September  1988  to  September  1994,  Clinical  Associate
Professor of Medicine at Cornell Medical School from January 1995 to December 2003 and Professor of Clinical Medicine at
the  Robert  Wood  Johnson  Medical  School  from  July  1998  to  June  2010.  Dr.  Zeldis  received  a  BA  and  an  MS  from  Brown
University, and an MD, and a PhD in Molecular Biophysics and Biochemistry from Yale University. Dr. Zeldis trained in Internal
Medicine at the UCLA Center for the Health Sciences and in Gastroenterology at the Massachusetts General Hospital and
Harvard Medical School. Dr. Zeldis was selected to serve as a member of our Board of Directors because of his experience
as an executive officer of a publicly traded biopharmaceutical company and in clinical research and medical

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development, and his experience in the health care industry, including his experience as an internist, gastroenterologist and
professor of medicine.

Jonathan  Guarino,  CPA,  CGMA  has  been  with  our  company  since  September  2019  and  is  currently  our  Senior  Vice
President  and  Chief  Financial  Officer.  Mr.  Guarino  has  had  significant  experience  with  both  development-stage  and
commercial  companies.  From  September  2016 
for  Hepion
Pharmaceuticals, Inc. (formerly ContraVir Pharmaceuticals, Inc.), a New Jersey-based public biotechnology company, where
he  contributed  to  the  establishment  of  the  financial  infrastructure,  as  well  as  assisted  with  capital  fund-raising  and  debt
financings. He worked as Controller for Suite K Value Added Services LLC from August 2015 to September 2016 and as a
senior  manager  of  technical  accounting  for  Covance,  Inc.,  from  June  2014  to  May  2015.  Prior  to  these  positions,  he  held
accounting and finance positions of increasing importance with several companies, including PricewaterhouseCoopers LLP,
BlackRock,  Inc.  and  Barnes  &  Noble,  Inc.  Mr.  Guarino  is  a  CPA  (certified  public  accountant)  and  CGMA  (chartered  global
management accountant), who received his BS in Business from Montclair State University.

to  July  2019,  he  served  as  Corporate  Controller 

Oreola Donini, PhD, has been with our company since August 2013 and is currently our Chief Scientific Officer and Senior
Vice  President,  a  position  she  has  held  since  December  2014.  Dr.  Donini  served  as  our  Vice  President  of  Preclinical
Research  and  Development  from  August  2013  until  December  2014.  She  has  more  than  20  years’  experience  in  drug
discovery  and  preclinical  development  with  start-up  biotechnology  companies.  From  2012  to  2013,  Dr.  Donini  worked  with
ESSA  Pharma  Inc.  as  Vice  President  Research  and  Development.  From  2004  to  2013,  Dr.  Donini  worked  with  Inimex
Pharmaceuticals Inc. (“Inimex”), lastly as Senior Director of Preclinical R&D from 2007 to 2013. Prior to joining Inimex, she
worked  with  Kinetek  Pharmaceuticals  Inc.,  developing  therapies  for  infectious  disease,  cancer  and  cancer  supportive  care.
Dr.  Donini  is  a  co-inventor  and  leader  of  our  SGX94  innate  defense  regulator  technology,  developed  by  Inimex  and
subsequently acquired by us. She was responsible for overseeing the manufacturing and preclinical testing of SGX94, which
demonstrated efficacy in combating bacterial infections and mitigating the effects of tissue damage due to trauma, infection,
radiation  and/or  chemotherapy  treatment.  These  preclinical  studies  resulted  in  a  successful  Phase  1  clinical  study  and
clearance  of  Phase  2  protocols  for  oral  mucositis  in  head  and  neck  cancer  and  acute  bacterial  skin  and  skin  structure
infections. While with ESSA Pharma Inc. as the Vice President of Research and Development, Dr. Donini led the preclinical
testing of a novel N-terminal domain inhibitor of the androgen receptor for the treatment of prostate cancer. While with Kinetek
Pharmaceuticals  Inc.,  her  work  related  to  the  discovery  of  novel  kinase  and  phosphatase  inhibitors  for  the  treatment  of
cancer.  Dr.  Donini  received  her  PhD  from  Queen’s  University  in  Kinston,  Ontario,  Canada  and  completed  her  post-doctoral
work  at  the  University  of  California,  San  Francisco.  Her  research  has  spanned  drug  discovery,  preclinical  development,
manufacturing and clinical development in infectious disease, cancer and cancer supportive care.

Richard Straube, MD has been with our company since January 2014 and is currently our Senior Vice President and Chief
Medical  Officer.  Dr.  Straube  is  a  board-certified  pediatrician  with  over  35  years’  experience  in  both  academia  and  industry,
including  clinical  research  experience  in  host-response  modulation.  From  2009  until  joining  our  company,  he  was  Chief
Medical Officer of Stealth Peptides Incorporated, a privately-held, clinical stage, biopharmaceutical company. Prior to joining
us,  Dr.  Straube  served  from  1988  to  1993  in  various  capacities,  including  most  recently  as  Senior  Director,  Infectious
Diseases  and  Immunology,  Clinical  Research,  for  Centocor,  Inc.,  a  privately-held  biopharmaceutical  company  focused  on
developing monoclonal antibody-based diagnostics. While at Centocor, Inc., Dr. Straube was responsible for the initial anti-
cytokine  and  anti-endotoxin  programs  targeted  at  ameliorating  inappropriate  host  responses  to  infectious  and  immunologic
challenges.  Programs  that  he  managed  at  Centocor,  Inc.  include  assessments  of  immunomodulation  using  monoclonal
removal of inciting molecular triggers, removal of internal immune-messengers, augmentation of normal host defenses, and
maintenance  of  normal  sub-cellular  function  in  the  face  of  injury.  From  1993  to  1995,  Dr.  Straube  was  Director  of  Medical
Affairs  at  T-cell  Sciences,  Inc.,  a  privately-held  biotechnology  company.  From  1995  to  1997,  he  was  Director  of  Clinical
Investigations  of  the  Pharmaceutical  Products  Division  of  Ohmeda  Corp.,  a  privately-held  biopharmaceutical  company.  He
served  from  1998  to  2007  as  Executive  Vice  President  of  Research  and  Development  and  Chief  Scientific  Officer  at  INO
Therapeutics LLC, a privately-held biotherapeutics company, where he was responsible for the clinical trials and subsequent
approval of inhaled nitric oxide for the treatment of persistent pulmonary hypertension of the newborn. From 2007 to 2009,
Dr.  Straube  was  the  Chief  Medical  Officer  at  Critical  Biologics  Corporation,  a  privately-held  biotechnology  company.
Dr.  Straube  received  his  medical  degree  and  residency  training  at  the  University  of  Chicago,  completed  a  joint  adult  and
pediatrician  infectious  diseases  fellowship  at  the  University  of  California,  San  Diego  (“UCSD”),  and  as  a  Milbank  Scholar
completed training in clinical trial design at the London School of Hygiene and Tropical Medicine. While on the faculty at the
UCSD Medical Center, his research focused on interventional studies for serious viral infections.

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Board Leadership Structure

Our  Board  of  Directors  believes  that  Dr.  Schaber’s  service  as  both  the  Chairman  of  our  Board  of  Directors  and  our  Chief
Executive Officer is in the best interest of our Company and our stockholders. Dr. Schaber possesses detailed and in-depth
knowledge  of  the  issues,  opportunities  and  challenges  facing  our  Company  and  our  business  and,  therefore,  is  best
positioned to develop agendas that ensure that the Board of Directors’ time and attention are focused on the most important
matters.  His  combined  role  enables  decisive  leadership,  ensures  clear  accountability,  and  enhances  our  ability  to
communicate our message and strategy clearly and consistently to our stockholders, employees, and collaborative partners.

Mr. Lapointe, Ms. Parks, Dr. Rubin, and Dr. Zeldis are independent and the Board of Directors believes that the independent
directors  provide  effective  oversight  of  management.  Moreover,  in  addition  to  feedback  provided  during  the  course  of
meetings  of  the  Board  of  Directors,  the  independent  directors  hold  executive  sessions.  Following  an  executive  session  of
independent directors, the independent directors’ report back to the full Board of Directors regarding any specific feedback or
issues,  provide  the  Chairman  with  input  regarding  agenda  items  for  Board  of  Directors  and  Committee  meetings,  and
coordinate with the Chairman regarding information to be provided to the independent directors in performing their duties. The
Board  of  Directors  believes  that  this  approach  appropriately  and  effectively  complements  the  combined  Chairman/Chief
Executive Officer structure.

Although we believe that the combination of the Chairman and Chief Executive Officer roles is appropriate under the current
circumstances,  our  corporate  governance  guidelines  do  not  establish  this  approach  as  a  policy,  and  the  Board  of  Directors
may determine that it is more appropriate to separate the roles in the future.

Role of the Board of Directors in Risk Oversight

One  of  the  key  functions  of  our  Board  of  Directors  is  informed  oversight  of  our  risk  management  process.  Our  Board  of
Directors does not have a standing risk management committee, but rather administers this oversight function directly through
the Board of Directors as a whole, as well as through various standing committees of our Board of Directors that address risks
inherent  in  their  respective  areas  of  oversight.  The  Board  of  Directors  is  engaged  in  the  oversight  of  risk  through  regular
updates from Dr. Schaber, in his role as our Chief Executive Officer, and other members of our management team, regarding
those  risks  confronting  us  (including  risks  relating  to  regulatory  compliance,  information  technology  and  cybersecurity,
environmental  and  sustainability,  climate  change  and  public  health),  the  actions  and  strategies  necessary  to  mitigate  those
risks and the status and effectiveness of those actions and strategies. The updates are provided at regularly scheduled Board
of Directors and committee meetings as well as through more frequent informal meetings that include our Board of Directors,
our  Chief  Executive  Officer,  our  Chief  Financial  Officer,  our  Chief  Medical  Officer  and  our  Chief  Scientific  Officer  and  other
members of our management team. The Board of Directors provides insight into the issues, based on the experience of its
members, and provides constructive challenges to management’s assumptions and assertions.

In  particular,  our  Board  of  Directors  is  responsible  for  monitoring  and  assessing  strategic  risk  exposure  and  our  Audit
Committee has the responsibility to consider and discuss our major financial risk exposures and the steps our management
has  taken  to  monitor  and  control  these  exposures,  including  guidelines  and  policies  to  govern  the  process  by  which  risk
assessment  and  management  is  undertaken.  The  Audit  Committee  also  monitors  compliance  with  legal  and  regulatory
requirements. Our Nominating and Corporate Governance Committee monitors the effectiveness of our corporate governance
practices, including whether they are successful in preventing illegal or improper liability-creating conduct. Our compensation
committee  assesses  and  monitors  whether  any  of  our  compensation  policies  and  programs  has  the  potential  to  encourage
excessive risk-taking.

Committees of the Board of Directors

Our  Board  of  Directors  has  the  following  three  committees:  (1)  Compensation,  (2) Audit  and  (3)  Nominating  and  Corporate
Governance. Our Board of Directors has adopted a written charter for each of these committees, which are available on our
website at www.soligenix.com under the “Investors” section.

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Audit
Committee

Compensation
Committee

Nominating and
Corporate Governance
Committee

Table of Contents

Director
Gregg A. Lapointe, CPA
Diane L. Parks, MBA
Robert J. Rubin, MD
Jerome B. Zeldis, MD, PhD

– Committee Chair

– Member

Audit Committee

Our Board of Directors has an Audit Committee, which is comprised of Mr. Lapointe (Chair), Ms. Parks and Dr. Rubin. The
Audit Committee assists our Board of Directors in monitoring the financial reporting process, the internal control structure and
the  independent  registered  public  accountants.  Its  primary  duties  are  to  serve  as  an  independent  and  objective  party  to
monitor the financial reporting process and internal control system, to review and appraise the audit effort of the independent
registered  public  accountants  and  to  provide  an  open  avenue  of  communication  among  the  independent  registered  public
accountants,  financial  and  senior  management,  and  our  Board  of  Directors.  Our  Board  of  Directors  has  determined  that
Mr. Lapointe, Ms. Parks and Dr. Rubin are “independent” directors, within the meaning of applicable listing standards of The
Nasdaq Stock Market LLC (“Nasdaq”) and the Exchange Act and the rules and regulations thereunder. Our Board of Directors
has  also  determined  that  the  members  of  the  Audit  Committee  are  qualified  to  serve  on  the  committee  and  have  the
experience  and  knowledge  to  perform  the  duties  required  of  the  committee  and  that  Mr.  Lapointe  qualifies  as  an  “audit
committee financial expert” as that term is defined in the applicable regulations of the Exchange Act.

Compensation Committee

Our Board of Directors has a Compensation Committee, which is comprised of Dr. Rubin (Chair), Ms. Parks and Dr. Zeldis.
The  Compensation  Committee  is  responsible  for  reviewing  and  approving  the  executive  compensation  program,  assessing
executive  performance,  setting  salary,  making  grants  of  annual  incentive  compensation  and  approving  certain  employment
agreements. Our Board of Directors has determined that Dr. Rubin, Mr. Lapointe and Dr. Zeldis are “independent” directors
within the meaning of applicable listing standards of Nasdaq and the Exchange Act and the rules and regulations thereunder.

Nominating and Corporate Governance Committee

Our  Board  of  Directors  has  a  Nominating  and  Corporate  Governance  Committee  (“Nominating  Committee”),  which  is
comprised  of  Dr.  Zeldis  (Chair),  Mr.  Lapointe  and  Dr.  Rubin.  The  Nominating  Committee  makes  recommendations  to  the
Board of Directors regarding the size and composition of our Board of Directors, establishes procedures for the nomination
process, identifies and recommends candidates for election to our Board of Directors. Our Board of Directors has determined
that  Dr.  Zeldis,  Mr.  Lapointe  and  Ms.  Parks  are  “independent”  directors,  as  such  term  is  defined  by  the  applicable  Nasdaq
listing standards.

Code of Ethics

We  have  adopted  a  code  of  ethics  that  applies  to  all  our  executive  officers  and  senior  financial  officers  (including  our  chief
executive  officer,  chief  financial  officer,  chief  accounting  officer  and  any  person  performing  similar  functions).  A  copy  of  our
code  of  ethics  is  publicly  available  on  our  website  at  www.soligenix.com  under  the  “Investors”  section.  If  we  make  any
substantive amendments to our code of ethics or grant any waiver, including any implicit waiver, from a provision of the code
to our chief executive officer, chief financial officer or chief accounting officer, we will disclose the nature of such amendment
or waiver in a Current Report on Form 8-K.

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Diversity Considerations in Identifying Director Nominees

We do not have a formal diversity policy or set of guidelines in selecting and appointing directors that comprise our Board of
Directors.  However,  when  making  recommendations  to  our  Board  of  Directors  regarding  the  size  and  composition  of  our
Board  of  Directors,  our  Nominating  Committee  does  consider  each  individual  director’s  qualifications,  skills,  business
experience and capacity to serve as a director and the diversity of these attributes for the Board of Directors as a whole.

Compensation Committee Interlocks and Insider Participation

No member of our Compensation Committee is or has at any time during the past year been one of our officers or employees.
None  of  our  executive  officers  currently  serves  or  in  the  past  year  has  served  as  a  member  of  the  Board  of  Directors  or
Compensation  Committee  of  any  entity  that  has  one  or  more  executive  officers  serving  on  our  Board  of  Directors  or
Compensation Committee.

Clawback Policy

In 2023, we adopted a Clawback Policy in compliance with Nasdaq rules. Under our Clawback Policy, if we are required to
prepare  an  accounting  restatement  due  to  material  noncompliance  with  the  financial  reporting  requirements  under  United
States  securities  laws,  we  will  be  entitled  to  recover  (and  will  seek  to  recover),  from  our  executive  officers,  any  excess
incentive-based compensation received by our executive officers during the three-year period prior to the date on which we
are  required  to  prepare  the  restatement.  This  policy  applies  to  both  equity-based  and  cash  compensation  awards.  The
“excess compensation” is the difference between the actual amount that was paid and the amount that would have been paid
if the financial statements were prepared properly in the first instance. To ensure that we can enforce the Clawback Policy, we
require each executive officer subject to the policy to execute an acknowledgement stating that the executive has received
and reviewed the policy and agrees that he or she is fully bound by the policy.

Item 11. Executive Compensation

In  2018,  in  furtherance  of  our  compensation  philosophy  and  objectives,  the  Compensation  Committee  engaged  Setren
Smallberg & Associates (“SS&A”), an outside executive compensation consulting firm determined to be independent by the
Compensation  Committee,  to  conduct  a  review  of,  and  recommend  changes  to,  our  compensation  program  for  our  most
highly  compensated  executive  officers.  A  representative  of  SS&A  attended  Compensation  Committee  meetings  at  the
invitation of the Compensation Committee Chairman and was also in direct contact with the Compensation Committee and
company  management  from  time  to  time.  SS&A  provided  the  Compensation  Committee  with  assistance  and  advice  in  the
review of our salary structure, annual and equity incentive awards and other related executive pay issues. In addition, SS&A
provided advice regarding marketplace trends and best practices relating to competitive pay levels.

SS&A did not provide any services to us other than its services as the Compensation Committee’s independent compensation
consultant,  and  SS&A  did  not  receive  any  fees  or  compensation  from  us  other  than  the  fee  it  received  as  the  independent
compensation consultant. SS&A did not provide any services to us in 2022 or 2023. The Compensation Committee confirmed
that SS&A’s work for the Compensation Committee did not create any conflicts of interest.

Summary Compensation

The  following  table  contains  information  concerning  the  compensation  paid  during  each  of  the  two  years  ended
December  31,  2023  and  2022,  respectively  to  our  Chief  Executive  Officer  and  each  of  the  three  other  most  highly
compensated executive officers (collectively, the “Named Executive Officers”).

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Summary Compensation

Option

All Other

Name
Christopher J. Schaber (1)

     Position      Year     
  CEO &   2023 $  519,476
  President   2022 $  499,496

Salary

Bonus
$  72,727
$  107,891

     Awards      Compensation    
$
$

$  75,482
$  73,059

 32,800
 30,740

Total
$  700,484
$  711,185

Jonathan Guarino (2)

Oreola Donini (3)

Richard C. Straube (4)

  CFO &   2023 $  245,000
  Senior VP  2022 $  231,132

$  31,605
$  42,436

$  45,289
$  51,042

  CSO &   2023 $  300,000
  Senior VP  2022 $  280,800

$  37,800
$  51,555

$  45,289
$  27,259

  CMO &   2023 $  189,461
  Senior VP  2022 $  182,174

$  22,736
$  32,901

$  37,741
$  27,259

$
$

$
$

$
$

 32,800
 30,740

$  354,693
$  355,350

 4,505
 4,628

$  387,594
$  364,242

 — $  249,938
 — $  242,334

(1) Dr. Schaber deferred the payment of his 2023 bonus of $72,727 until January 15, 2024. Option awards figure includes the
value of common stock option awards at grant date as calculated under FASB ASC 718. Other compensation represents
health insurance costs paid by us.

(2) Mr. Guarino deferred the payment of his 2023 bonus of $31,605 until January 15, 2024. Option awards figure includes the
value of common stock option awards at grant date as calculated under FASB ASC 718. Other compensation represents
health insurance costs paid by us.

(3) Dr. Donini deferred the payment of her 2023 bonus of $37,800 until January 15, 2024. Option awards figure includes the
value of common stock option awards at grant date as calculated under FASB ASC 718. Other compensation represents
health insurance costs paid by us.

(4) Dr. Straube deferred the payment of his 2023 bonus of $22,736 until January 15, 2024. Option awards figure includes the
value of common stock option awards at grant date as calculated under FASB ASC 718. Other compensation represents
health insurance costs paid by us.

Employment and Severance Agreements

In  August  2006,  we  entered  into  a  three-year  employment  agreement  with  Christopher  J.  Schaber,  PhD.  Pursuant  to  this
employment agreement we agreed to pay Dr. Schaber a base salary of $300,000 per year and a minimum annual bonus of
$100,000. Dr. Schaber’s employment agreement automatically renews every three years, unless otherwise terminated, and
last was automatically renewed in December 2019 for an additional term of three years. We agreed to issue him options to
purchase 833 shares of our common stock, with one third immediately vesting and the remainder vesting over three years.
Upon termination without “Just Cause” as defined by this agreement, we would pay Dr. Schaber nine months of severance, as
well  as  any  accrued  bonuses,  accrued  vacation,  and  we  would  provide  health  insurance  and  life  insurance  benefits  for
Dr.  Schaber  and  his  dependents.  No  unvested  options  shall  vest  beyond  the  termination  date.  Dr.  Schaber’s  monetary
compensation  (base  salary  of  $300,000  and  bonus  of  $100,000)  remained  unchanged  from  2006  with  the  2007  renewal.
Upon a change in control of the company due to merger or acquisition, all of Dr. Schaber’s options shall become fully vested,
and be exercisable for a period of five years after such change in control (unless they would have expired sooner pursuant to
their terms). In the event of his death during the term of the agreement, all of his unvested options shall immediately vest and
remain exercisable for the remainder of their term and become the property of Dr. Schaber’s immediate family.

In January 2020, our Board of Directors authorized an amendment to Dr. Schaber’s employment agreement to increase the
number  of  shares  of  common  stock  from  334  to  33,334,  issuable  to  Dr.  Schaber  immediately  prior  to  the  completion  of  a
transaction  or  series  or  a  combination  of  related  transactions  negotiated  by  our  Board  of  Directors  whereby,  directly  or
indirectly, a majority of our capital stock or a majority of our assets are transferred from us and/or our stockholders to a third
party.

In December 2020, our Board of Directors authorized an amendment to Dr. Schaber’s employment agreement to modify the
severance  terms.  Upon  termination  without  “Just  Cause”  as  defined  by  this  agreement,  we  would  pay  Dr.  Schaber
twelve months of severance, as well as a pro rata bonus calculated by the average of his prior two year’s annual bonuses,

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if any, and based on the number of months that he was employed during the year in which his employment was terminated;
however,  in  the  case  of  termination  without  “Just  Cause”  within  one  year  following  a  change  in  control  or  the  sale  or  other
disposition of all or substantially all of our assets Dr. Schaber will be entitled 18 months of severance and health insurance
and life insurance benefits for him and his dependents.

On  June  22,  2011,  the  Compensation  Committee  eliminated  his  fixed  minimum  annual  bonus  payable  and  revised  it  to  an
annual targeted bonus of 40% of his annual base salary. On December 10, 2021, the Compensation Committee approved an
increase in salary for Dr. Schaber to $499,496. On December 8, 2022, the Compensation Committee approved an increase in
salary for Dr. Schaber to $519,476. On December 8, 2023, the Compensation Committee approved an increase in salary for
Dr. Schaber to $540,255.

In  July  2013,  we  entered  into  a  one-year  employment  agreement  with  Oreola  Donini,  PhD,  our  Vice  President  Preclinical
Research & Development. Pursuant to the agreement, we agreed to pay Dr. Donini $170,000 (CAD) per year and a targeted
annual bonus of 20% of base salary. We also issued her options to purchase 2,666 shares of our common stock with one-
quarter  immediately  vesting  and  the  remainder  vesting  over  three  years.  Dr.  Donini’s  employment  agreement  automatically
renews each year, unless otherwise terminated, and has automatically renewed each year since execution. Upon termination
without “Just Cause”, as defined in Dr. Donini’s employment agreement, we would pay Dr. Donini three months of severance,
accrued  bonuses  and  vacation,  and  health  insurance  benefits.  No  unvested  options  vest  beyond  the  termination  date.  In
December  2014,  Dr.  Donini  was  named  Chief  Scientific  Officer  and  Senior  Vice  President.  Upon  Dr.  Donini’s  promotion  to
Chief  Scientific  Officer,  the  Compensation  Committee  increased  her  targeted  bonus  to  30%  of  her  annual  base  salary.  On
December  10,  2021,  the  Compensation  Committee  approved  an  increase  in  salary  for  Dr.  Donini  to  $280,800.  On
December 8, 2022, the Compensation Committee approved an increase in salary for Dr. Donini to $300,000. On December 8,
2023, the Compensation Committee approved an increase in salary for Dr. Donini to $312,000.

In  December  2014,  we  entered  into  a  one-year  employment  agreement  with  Richard  C.  Straube,  MD,  our  Chief  Medical
Officer  and  Senior  Vice  President.  Pursuant  to  the  agreement,  we  agreed  to  pay  Dr.  Straube  $300,000  per  year  and  a
targeted annual bonus of 30% of base salary. We also issued him options to purchase 666 shares of our common stock with
one-third  immediately  vesting  and  the  remainder  vesting  over  three  years.  On  March  26,  2019,  we  entered  into  an
amendment  to  our  employment  agreement  with  Dr.  Straube.  Pursuant  to  the  amended  agreement,  which  amendment
becomes effective as of April 1, 2019, Dr. Straube will be required to devote at least 20 hours per week to the performance of
his  duties  and  we  will  pay  him  $170,000  per  year.  The  amended  employment  agreement  automatically  renews  each  year,
unless otherwise terminated. Upon termination without “Just Cause”, as defined in the amended employment agreement, we
would  pay  Dr.  Straube  one  month  of  severance.  No  unvested  options  vest  beyond  the  termination  date.  On  December  10,
2021, the Compensation Committee approved an increase in salary for Dr. Straube to $182,174. On December 8, 2022, the
Compensation  Committee  approved  an  increase  in  salary  for  Dr.  Straube  to  $189,461.  On  December  8,  2023,  the
Compensation Committee approved an increase in salary for Dr. Straube to $197,039.

On September 9, 2019, we entered into a one-year employment agreement with Jonathan Guarino, CPA, CGMA, our Senior
Vice President and Chief Financial Officer. Pursuant to the agreement, we agreed to pay Mr. Guarino $220,000 per year and
a targeted annual bonus of 30% of base salary. We also issued him options to purchase 2,666 shares of our common stock
with  one-quarter  immediately  vesting  and  the  remainder  vesting  over  three  years.  Mr.  Guarino’s  employment  agreement
automatically  renews  each  year,  unless  otherwise  terminated.  Upon  termination  without  “Just  Cause”,  as  defined  in
Mr. Guarino’s employment agreement, we would pay Mr. Guarino three months of severance, accrued salary, bonuses and
vacation, and health insurance benefits. No unvested options vest beyond the termination date. On December 10, 2021, the
Compensation  Committee  approved  an  increase  in  salary  for  Mr.  Guarino  to  $231,132.  On  December  8,  2022,  the
Compensation  Committee  approved  an  increase  in  salary  for  Mr.  Guarino  to  $245,000.  On  December  8,  2023,  the
Compensation Committee approved an increase in salary for Mr. Guarino to $254,800.

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Outstanding Equity Awards at Fiscal Year-End

The following table contains information concerning unexercised options, stock that has not vested, and equity incentive plan
awards  for  the  Named  Executive  Officers  outstanding  at  December  31,  2023.  We  have  never  issued  Stock  Appreciation
Rights.

Name
Christopher J. Schaber

Jonathan Guarino

Oreola Donini

Richard C. Straube

Number of Securities
Underlying Unexercised
Options (#)
Exercisable Unexercisable
 —  
 —  
 —  
 —  
 —  
 —  
 —
 —
 250  
 1,000  
 —
 1,249
 4,663
 112,500

 666  
 933  
 4,000  
 4,000  
 4,000  
 4,000  
 4,000
 4,000
 3,750  
 3,000  
 845
 1,905
 4,670
 37,500

 —  
 —  
 —  

 1,036
 2,663
 67,500

 —  
 —  
 —  
 —  
 —  
 —  
 —  

 1,163
 2,663
 67,500

 —  
 —  
 —  
 —  
 —  
 —  
 —  
 —
 663  

 2,663
 56,250

 2,666  
 666  
 2,666  
 2,297
 2,670
 22,500

 200  
 466  
 1,333  
 2,333  
 2,666  
 4,000  
 4,666  
 3,503
 2,670
 22,500

 666  
 333  
 466  
 1,333  
 2,333  
 2,666  
 2,000  
 2,666
 2,003  
 2,670
 18,750

74

Equity
Incentive Plan
Awards:
Number of
Securities
Underlying
Unexercised
Unearned
Options (#)

Option
Exercise
Price
($)

Option
Expiration
Date

 — $  225.00   12/04/2024
 — $  169.50   12/30/2025
 — $  30.15   12/06/2027
 — $  14.55   12/12/2028
 — $  14.40   01/01/2029
 — $  18.60   12/11/2029
01/01/2030
 — $  21.75
12/09/2030
 — $  35.10
$  19.20   01/03/2031
 11.70   12/08/2031
$
01/02/2032
01/02/2032
12/07/2032
12/07/2033

 — $  10.35
$  10.35
 8.10
$
 0.67
$

 250
 1,000

 1,249
 4,663
 112,500

 — $  14.55   09/08/2029
 — $  18.60   12/11/2029
 — $  35.10   12/09/2030
12/08/2031
12/07/2032
12/07/2033

 11.70
 8.10
 0.67

$
$
$

 1,036
 2,663
 67,500

 — $  225.00   12/04/2024
 — $  169.50   12/30/2025
 — $  40.05   03/30/2027
 — $  30.15   12/06/2027
 — $  14.55   12/12/2028
 — $  18.60   12/11/2029
 — $  35.10   12/09/2030
12/08/2031
12/07/2032
12/07/2033

 11.70
 8.10
 0.67

$
$
$

 1,163
 2,663
 67,500

 — $  301.50   01/06/2024
 — $  225.00   12/04/2024
 — $  169.50   12/30/2025
 — $  40.05   03/30/2027
 — $  30.15   12/06/2027
 — $  14.55   12/12/2028
 — $  18.60   12/11/2029
12/09/2030
 — $  35.10
 11.70   12/08/2031
12/07/2032
 8.10
12/07/2033
 0.67

$
$
$

 663
 2,663
 56,250

    
    
    
    
        
    
    
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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Compensation of Directors

The following table contains information concerning the compensation of the non-employee directors during the year ended
December 31, 2023.

Name
Gregg A. Lapointe
Diane L. Parks
Robert J. Rubin
Jerome B. Zeldis
Timothy Cote (3)

Fees Earned
Paid in Cash
 (1)
 55,000
 47,500
 57,500
 50,000
 6,435

$
$
$
$
$

Option
Awards (2)

$
$
$
$
$

 22,500
 22,500
 22,500
 22,500
 21,300

$
$
$
$
$

Total

 77,500
 70,000
 80,000
 72,500
 27,735

(1) Directors who are compensated as full-time employees receive no additional compensation for service on our Board of
Directors. Each independent director who is not a full-time employee is paid $35,000 annually, on a prorated basis, for
their  service  on  our  Board  of  Directors,  the  chairman  of  our  Audit  Committee  is  paid  $15,000  annually,  on  a  prorated
basis, and the chairmen of our Compensation and Nominating Committees is paid $10,000 annually, on a prorated basis.
Additionally,  Audit  Committee  members  are  paid  $7,500  annually  and  Compensation  and  Nominating  Committee
members are paid $5,000 annually. This compensation is paid quarterly.

(2) We maintain a stock option grant program pursuant to the nonqualified stock option plan, whereby members of our Board
of Directors or its committees who are not full-time employees receive an initial grant of fully vested options to purchase
15,000  shares  of  common  stock.  Upon  re-election  to  the  Board,  each  Board  member  will  receive  stock  options  with  a
value of $30,000, calculated using the closing price of the common stock on the trading day prior to the date of the annual
meeting  of  our  stockholders,  which  vest  at  the  rate  of  25%  per  quarter,  commencing  with  the  first  quarter  after  each
annual meeting of stockholders. Our Board of Directors determined to reduce the number of stock options issuable upon
reelection in 2023 by 25% to $22,500.

(3) Dr. Cote was appointed by our Board of Directors in May 2023 and resigned, for personal reasons, as a member of our

Board of Directors on July 7, 2023.

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

The  table  below  provides  information  regarding  the  beneficial  ownership  of  the  common  stock  as  of  March  8,  2024,  of
(1) each person or entity who owns beneficially 5% or more of the shares of our outstanding common stock, (2) each of our
directors,  (3)  each  of  the  Named  Executive  Officers,  and  (4)  our  directors  and  officers  as  a  group.  Except  as  otherwise
indicated, and subject to applicable community property laws, we believe the persons named in the table have sole voting and
investment power with respect to all shares of common stock held by them.

Name of Beneficial Owner
Christopher J. Schaber (1)
Gregg A. Lapointe (2)
Diane L. Parks (3)
Robert J. Rubin (4)
Jerome B. Zeldis (5)
Jonathan Guarino (6)
Oreola Donini (7)
Richard Straube (8)
All directors and executive officers as a group (8 persons) (9)

Shares of
Common
Stock
Beneficially
Owned **

 84,863  
 20,682  
 19,623  
 20,483  
 21,718  
 36,149  
 46,370
 37,427
 287,315  

Percent
of Class

*
*
*
*
*
*
*
*
2.66 %

(1) Includes  6,010  shares  of  common  stock  and  options  to  purchase  78,853  shares  of  common  stock  exercisable  within
60 days of March 8, 2024. The address of Dr. Schaber is c/o Soligenix, 29 Emmons Drive, Suite B-10, Princeton, New
Jersey 08540.

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(2) Includes  492  shares  of  common  stock  and  options  to  purchase  20,190  shares  of  common  stock  exercisable  within
60 days of March 8, 2024. The address of Mr. Lapointe is c/o Soligenix, 29 Emmons Drive, Suite B-10, Princeton, New
Jersey 08540.

(3) Includes  996  shares  of  common  stock  and  options  to  purchase  18,627  shares  of  common  stock  exercisable  within
60  days  of  March  8,  2024.  The  address  of  Ms.  Parks  is  c/o  Soligenix,  29  Emmons  Drive,  Suite  B-10,  Princeton,  New
Jersey 08540.

(4) Includes  293  shares  of  common  stock  and  options  to  purchase  20,190  shares  of  common  stock  exercisable  within
60  days  of  March  8,  2024.  The  address  of  Dr.  Rubin  is  c/o  Soligenix,  29  Emmons  Drive,  Suite  B-10,  Princeton,  New
Jersey 08540.

(5) Includes  1,528  shares  of  common  stock  and  options  to  purchase  20,190  shares  of  common  stock  exercisable  within
60  days  of  March  8,  2024.  The  address  of  Dr.  Zeldis  is  c/o  Soligenix,  29  Emmons  Drive,  Suite  B-10,  Princeton,  New
Jersey 08540.

(6) Includes  734  shares  of  common  stock  and  options  to  purchase  35,415  shares  of  common  stock  exercisable  within
60 days of March 8, 2024. The address of Mr. Guarino is c/o Soligenix, 29 Emmons Drive, Suite B-10, Princeton, New
Jersey 08540.

(7) Includes options to purchase 46,370 shares of common stock exercisable within 60 days of March 8, 2024. The address

of Dr. Donini is c/o Soligenix, 29 Emmons Drive, Suite B-10, Princeton, New Jersey 08540.

(8) Includes  534  shares  of  common  stock  and  options  to  purchase  36,893  shares  of  common  stock  exercisable  within  60
days of March 8, 2024. The address of Dr. Straube is c/o Soligenix, 29 Emmons Drive, Suite B-10, Princeton, New Jersey
08540.

(9) Includes 10,587 shares of common stock and options to purchase 276,728 shares of common stock exercisable within

60 days of March 8, 2024.

*

Indicates less than 1%.

** Beneficial ownership is determined in accordance with the rules of the SEC. Shares of common stock subject to options
or warrants currently exercisable or exercisable within 60 days of March 8, 2024 are deemed outstanding for computing
the  percentage  ownership  of  the  stockholder  holding  the  options  or  warrants,  but  are  not  deemed  outstanding  for
computing the percentage ownership of any other stockholder. Percentage of ownership is based on 10,524,437 shares
of common stock outstanding as of March 8, 2024.

Equity Compensation Plan Information

In December 2005, our Board of Directors approved the 2005 Equity Incentive Plan, which was approved by stockholders on
December  29,  2005.  The  maximum  number  of  shares  of  our  common  stock  available  for  issuance  under  the  2005  Equity
Incentive Plan is 300,000 shares. In April 2015, our Board of Directors approved the 2015 Equity Incentive Plan, which was
approved by stockholders on June 18, 2015. On September 22, 2022, the stockholders approved an amendment to the 2015
Plan to increase the maximum numbers of shares of common stock available for issuance under the plan from 2,000,000 to
6,000,000 shares. As of December 31, 2023, there are 5,096,447 shares currently available for future grants under the 2015
Plan.

The following table sets forth certain information, as of December 31, 2023, with respect to the following compensation plans
(including individual compensation arrangements) under which our equity securities are authorized for issuance:

● all compensation plans previously approved by our security holders; and
● all compensation plans not previously approved by our security holders.

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Plan Category
Equity compensation plans approved by security holders (1)
Equity compensation plans not approved by security holders
Total

Number of
Securities to
be Issued
upon Exercise
of
Outstanding
Options,
Warrants and
Rights

Weighted-
Average
Exercise
Price of
Outstanding
Options,
Warrants and
Rights

 906,892

$
 —  
$

 906,892

 5.73  
 —  
 5.73  

Number of
Securities
Remaining
Available for
Future
Issuance
Under Equity
Compensation
Plans
(excluding
securities
reflected in
the first
column)
 5,096,447
 —
 5,096,447

(1) Includes our 2005 Equity Incentive Plan and our 2015 Equity Incentive Plan. Our 2005 Equity Incentive Plan expired in

2015 and thus no securities remain available for future issuance under that plan.

Item 13. Certain Relationships and Related Transactions and Director Independence

Related Party Transactions

Our audit committee is responsible for the review, approval and ratification of related party transactions. The audit committee
reviews  these  transactions  under  our  Code  of  Ethics,  which  governs  conflicts  of  interests,  among  other  matters,  and  is
applicable to our employees, officers and directors.

We are party to a registration rights agreement with certain stockholders. The agreement provides that the stockholders have
the right to require that we register its shares under the Securities Act for sale to the public, subject to certain conditions. The
stockholders also have piggyback registration rights, which means that, if not already registered, they have the right to include
their  shares  in  any  registration  that  we  effect  under  the  Securities  Act,  subject  to  specified  exceptions.  We  must  pay  all
expenses incurred in connection with the exercise of these demand registration rights.

We are unable to estimate the dollar value of the registration rights to the holders of these rights. The amount of reimbursable
expenses  under  the  agreements  depends  on  a  number  of  variables,  including  whether  registration  rights  are  exercised
incident to a primary offering by us, the form on which we are eligible to register such a transaction, and whether we have a
shelf registration in place at the time of a future offering.

On April 27, 2023, we entered into an exclusive option agreement with Silk Road Therapeutics, Inc. ("Silk Road"), pursuant to
which Silk Road granted us an exclusive option to purchase all assets and rights, including intellectual property and regulatory
documents,  related  to  Silk  Road’s  PTX  product  candidate,  a  non-biological  anti-TNF-alpha  inhibitor,  for  the  treatment  of
mucocutaneous ulcers in patient’s suffering from Behçet’s Disease (“BD”). The option agreement expired on August 25, 2023.
In consideration for the option, we paid $50,000 of cash and issued 31,646 shares of common stock with a value of $50,000.
The consideration paid for the option was recorded as general and administrative expense on the accompanying consolidated
statements of operations. As of August 25, 2023, we concluded our due diligence activities and decided to allow the option to
expire. A member of our Board of Directors has an ownership interest in Silk Road.

Other than as described above, the employment agreements and compensation paid to our directors, we did not engage in
any  other  transactions  with  related  parties  since  January  1,  2022.  For  a  discussion  of  our  employment  agreements  and
compensation paid to our directors, see “Item 11. Executive Compensation.”

Director Independence

The Board of Directors has determined that Mr. Lapointe, Ms. Parks, Dr. Rubin, and Dr. Zeldis are “independent” as such term
is defined by the applicable listing standards of Nasdaq. Our Board of Directors based this determination primarily on a review
of the responses of the Directors to questionnaires regarding their employment, affiliations and family and other relationships.

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Item 14. Principal Accountant Fees and Services

The following table highlights the aggregate fees billed during each of the two years ended December 31, 2023 and 2022 by
Cherry Bekaert LLP.

Audit fees
Total

Audit Fees

2023

2022

$
$

 59,870
 59,870

$
$

 —
 —

This category includes the fees for the examination of our consolidated financial statements, review of our Annual Report on
Form 10-K and quarterly reviews of the interim financial statements included in our Quarterly Reports on Form 10-Q.

Tax Fees

Our principal accountants did not bill us for any services for tax compliance, tax advice and tax planning.

Other Fees

Our principal accountants did not bill us for any services or products other than as reported above in this Item 14 during each
of the two years.

Pre-Approval Policies and Procedures

The  audit  committee  has  adopted  a  policy  that  requires  advance  approval  of  all  audit  services  and  permitted  non-audit
services to be provided by the independent auditor as required by the Exchange Act. The audit committee must approve the
permitted service before the independent auditor is engaged to perform it. The audit committee approved all of the services
described above in accordance with its pre-approval policies and procedures.

Item 15. Exhibits and Financial Statements Schedules

(1) Consolidated Financial Statements:

Part IV

The financial statements required to be filed by Item 8 of this Annual Report on Form 10-K and filed in this Item 15, are as
follows:

Table of Contents
Consolidated Balance Sheets as of December 31, 2023 and 2022
Consolidated Statements of Operations for the Years Ended December 31, 2023 and 2022
Consolidated Statements of Comprehensive Loss for the Years Ended December 31, 2023 and 2022
Consolidated Statements of Changes in Mezzanine Equity and Shareholders’ Equity (Deficit) for the Years Ended
December 31, 2023 and 2022
Consolidated Statements of Cash Flows for the Years Ended December 31, 2023 and 2022
Notes to Consolidated Financial Statements
Report of Independent Registered Public Accounting Firm (PCAOB ID No. 00677)
Report of Independent Registered Public Accounting Firm (PCAOB ID No. 00274)

F-1
F-2
F-3
F-4
F-5

F-6
F-7 – F-24
F-26
F-28

(2) Financial Statement Schedules

Schedules  are  omitted  because  they  are  not  applicable,  or  are  not  required,  or  because  the  information  is  included  in  the
consolidated financial statements and notes thereto.

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(3) Exhibits:

2.1

3.1

3.2

3.3

3.4

3.5

3.6

3.7

3.8

3.9

3.10

4.1

4.2

10.1

10.2

10.3

10.4

Agreement  and  Plan  of  Merger,  dated  May  10,  2006  by  and  among  the  Company,  Corporate  Technology
Development, Inc., Enteron Pharmaceuticals, Inc. and CTD Acquisition, Inc. (incorporated by reference to Exhibit
2.1 included in our Registration Statement on Form SB-2 (File No. 333-133975) filed on May 10, 2006).

Second Amended and Restated Certificate of Incorporation (incorporated by reference to Exhibit 3.1 included in
our current report on Form 8-K filed on June 22, 2012).

Amended  and  Restated  By-laws  (incorporated  by  reference  to  Exhibit  3.1  included  in  our  Quarterly  Report  on
Form 10-QSB, as amended, for the fiscal quarter ended June 30, 2003).

Certificate  of  Amendment  to  Second  Amended  and  Restated  Certificate  of  Incorporation  (incorporated  by
reference to Exhibit 3.1 included in our current report on Form 8-K filed on June 22, 2016).

Certificate  of  Amendment  to  Second  Amended  and  Restated  Certificate  of  Incorporation  (incorporated  by
reference to Exhibit 3.1 included in our current report on Form 8-K filed on October 7, 2016).

Certificate  of  Amendment  to  Second  Amended  and  Restated  Certificate  of  Incorporation  (incorporated  by
reference to Exhibit 3.1 included in our current report on Form 8-K filed on June 14, 2017).

Certificate  of  Amendment  to  Second  Amended  and  Restated  Certificate  of  Incorporation  (incorporated  by
reference to Exhibit 3.1 of our current report on Form 8-K filed on September 28, 2018).

Certificate  of  Amendment  to  Second  Amended  and  Restated  Certificate  of  Incorporation  (incorporated  by
reference to Exhibit 3.1 of amendment number 1 to current report on Form 8-K filed on December 3, 2020).

Amendment  to  Amended  and  Restated  By-laws  (incorporated  by  reference  to  Exhibit  3.1  included  in  our
Quarterly Report on Form 10-Q for the fiscal quarter ended March 31, 2020).

Certificate  of  Designation  of  the  Series  D  preferred  stock  of  the  Company  dated  December  27,  2022
(incorporated  by  reference  to  Exhibit  3.1  to  our  Registration  Statement  on  Form  8-A  filed  on  December  27,
2022).

Certificate  of  Amendment  to  Second  Amended  and  Restated  Certificate  of  Incorporation  of  Soligenix,  Inc.
(incorporated by reference to Exhibit 3.1 included in our current report on Form 8-K filed on February 9, 2023).

Description of Securities. *

Registration  Rights  Agreement,  dated  December  15,  2020  by  and  among  Soligenix,  Inc.  and  the  other  parties
named  therein  (incorporated  by  reference  to  Exhibit  4.1  included  in  our  current  report  on  Form  8-K  filed  on
December 16, 2020).

License  Agreement  between  the  Company  and  the  University  of  Texas  Southwestern  Medical  Center
(incorporated by reference to Exhibit 10.9 included in our Annual Report on Form 10-KSB filed March 30, 2004,
as amended, for the fiscal year ended December 31, 2004).

2005  Equity  Incentive  Plan,  as  amended  on  September  25,  2013  (incorporated  by  reference  to  Exhibit  10.1
included in our current report on Form 8-K filed on September 30, 2013). **

Form  S-8  Registration  of  Stock  Options  Plan  dated  December  30,  2005  (incorporated  by  reference  to  our
registration statement on Form S-8 filed on December 30, 2005). **

Form S-8 Registration of Stock Options Plan dated June 20, 2014 (incorporated by reference to our registration
statement on Form S-8 filed on June 20, 2014). **

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10.5

10.6

10.7

10.8

10.9

10.10

10.11

10.12

10.13

10.14

10.15

10.16

10.17

10.18

10.19

10.20

Form  S-8  Registration  of  Stock  Options  Plan  dated  December  11,  2015  (incorporated  by  reference  to  our
registration statement on Form S-8 filed on December 14, 2015). **

Employment  Agreement  dated  December  27,  2007,  between  Christopher  J.  Schaber,  PhD  and  the  Company
(incorporated by reference to Exhibit 10.30 included in our Annual Report on Form 10-K for the fiscal year ended
December 31, 2008). **

Exclusive License Agreement dated November 24, 1998, between Enteron Pharmaceuticals, Inc. and George B.
McDonald,  MD  and  amendments  (incorporated  by  reference  to  Exhibit  10.42  included  in  our  Registration
Statement on Form S-1 (File No. 333-157322) filed on February 13, 2009).

First Amendment to Employment Agreement dated as of July 12, 2011, between the Company and Christopher
J.  Schaber,  PhD  (incorporated  by  reference  to  Exhibit  10.1  of  our  current  report  on  Form  8-K  filed  on  July  14,
2011).**

Amendment to the Exclusive License Agreement dated as of July 26, 2011, between George McDonald, MD and
the Company (incorporated by reference to Exhibit 10.2 of our current report on Form 8-K filed on July 28, 2011).

Amendment No. 2 to the Collaboration and Supply Agreement between the Company, Enteron and Sigma-Tau
dated as of December 20, 2012 (incorporated by reference to Exhibit 10.1 of our current report on Form 8-K filed
on December 27, 2012). †

Amendment to Exclusive License Agreement dated as of December 20, 2012 between Enteron and McDonald
(incorporated by reference to Exhibit 10.4 of our current report on Form 8-K filed on December 27, 2012).

Amendment  to  Consulting  Agreement  dated  as  of  December  20,  2012  between  Enteron  and  McDonald
(incorporated by reference to Exhibit 10.5 of our current report on Form 8-K filed on December 27, 2012).

Contract HHSO100201300023C dated September 18, 2013 between the Company and the U.S. Department of
Health  and  Human  Services  Biomedical  Advanced  Research  and  Development  Authority  (incorporated  by
reference to Exhibit 10.1 of our current report on Form 8-K filed on September 24, 2013). †

Contract  HHSN272201300030C  dated  September  24,  2013  by  and  between  the  Company  and  the  National
Institutes  of  Health  (incorporated  by  reference  to  Exhibit  10.1  of  our  current  report  on  Form  8-K  filed  on
September 30, 2013). †

Employment  Agreement  dated  as  of  January  6,  2014  between  the  Company  and  Richard  Straube,  M.D.
(incorporated by reference to Exhibit 10.1 of our current report on Form 8-K filed on January 8, 2014). **

Asset  Purchase  Agreement  dated  September  3,  2014  between  the  Company  and  Hy  Biopharma,  Inc.
(incorporated by reference to Exhibit 10.1 of our current report on Form 8-K filed on September 5, 2014). †

Registration  Rights  Agreement  dated  September  3,  2014  between  the  Company  and  Hy  Biopharma,  Inc.
(incorporated by reference to Exhibit 10.2 of our current report on Form 8-K filed on September 5, 2014).

Contract  HHSN272201400039C  dated  September  17,  2014  by  and  between  the  Company  and  the  National
Institutes  of  Health  (incorporated  by  reference  to  Exhibit  10.1  of  our  current  report  on  Form  8-K  filed  on
September 23, 2014). †

Lease Agreement dated November 21, 2014, between the Company and CPP II, LLC (incorporated by reference
to Exhibit 10.42 included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2014).

At Market Issuance Sales Agreement dated August 11, 2017 between Soligenix, Inc. and FBR Capital Markets &
Co. (incorporated by reference to Exhibit 1.1 included in our Quarter Report on Form 10-Q for the fiscal quarter
ended June 30, 2017).

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Table of Contents

10.21

10.22

10.23

10.24

10.25

10.26

10.27

10.28

10.29

10.30

10.31

19.1

21.1

23.1

23.2

31.1

31.2

Form  of  Registration  Rights  Agreement  dated  October  31,  2017  (incorporated  by  reference  to  Exhibit  10.3
included in our current report on Form 8-K filed on October 31, 2017).

First  Amendment  to  Employment  Agreement  dated  as  of  April  1,  2019  between  the  Company  and  Richard
Straube,  M.D.  (incorporated  by  reference  to  Exhibit  10.30  included  in  our  Annual  Report  on  Form  10-K  for  the
fiscal year ended December 31, 2018.**

Soligenix, Inc. 2015 Equity Incentive Plan, as amended on June 18, 2017, September 27, 2018, September 6,
2019 and September 22, 2022. (incorporated by reference to Exhibit 10.1 included in our current report on Form
8-K filed on September 23, 2022).

Employment  Agreement  dated  as  of  September  6,  2019  between  the  Company  and  Jonathan  L.  Guarino
(incorporated  by  reference  to  Exhibit  10.2  included  in  our  current  report  on  Form  8-K  filed  on  September  11,
2019).**

Second  Amendment  to  Employment  Agreement  dated  as  of  January  2,  2020,  between  Soligenix,  Inc.  and
Christopher J. Schaber, PhD (incorporated by reference to Exhibit 10.2 included in our current report on Form 8-
K filed on January 3, 2020).**

Amendment No. 1 to At Market Issuance Sales Agreement dated August 28, 2020 between Soligenix, Inc. and B.
Riley  FBR,  Inc.  (incorporated  by  reference  to  Exhibit  10.2  included  in  our  current  report  on  Form  8-K  filed  on
August 28, 2020).

Third  Extension  and  Amendment  to  Lease  dated  July  7,  2020  between  CPP  II  LLC  and  Soligenix,  Inc.
(incorporated by reference to Exhibit 10.1 included in our Quarterly Report on Form 10-Q for the fiscal quarter
ended September 30, 2020).

Loan and Security Agreement, dated December 15, 2020. (incorporated by reference to Exhibit 10.1 included in
our current report on Form 8-K filed on December 16, 2020).

Third  Amendment  to  Employment  Agreement  dated  as  of  December  10,  2020,  between  Soligenix,  Inc.  and
Christopher J. Schaber, PhD. (incorporated by reference to Exhibit 10.2 included in our current report on Form 8-
K filed on December 16, 2020). **

Form S-8 Registration Statement dated December 11, 2015 relating to Soligenix, Inc. 2015 Equity Incentive Plan
(incorporated by reference to our registration statement on Form S-8 filed on October 28, 2022). **

First  Amendment  to  Loan  and  Security  Agreement,  dated  April  19,  2023  (incorporated  by  reference  to  Exhibit
10.1 included in our current report on Form 8-K filed on April 19, 2023).

Insider Trading Policy. *

Subsidiaries of the Company. *

Consent of Cherry Bekaert LLP. *

Consent of EisnerAmper LLP. *

Certification of the Chief Executive Officer pursuant to Exchange Act rule 13(a)-14(a) (under Section 302 of the
Sarbanes-Oxley Act of 2002). *

Certification of the Chief Financial Officer pursuant to Exchange Act rule 13(a)-14(a) (under Section 302 of the
Sarbanes-Oxley Act of 2002). *

32.1

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

81

Table of Contents

32.2

97

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

Incentive Compensation Recoupment Policy. *

101.INS

Inline XBRL Instance Document

101.SCH

Inline XBRL Taxonomy Extension Schema Document

101.CAL

Inline XBRL Taxonomy Extension Calculation Linkbase Document

101.DEF

Inline XBRL Taxonomy Extension Definition Linkbase Document

101.LAB

Inline XBRL Taxonomy Extension Label Linkbase Document

101.PRE

Inline XBRL Taxonomy Extension Presentation Linkbase Document

104

Cover Page Interactive Data File – The cover page interactive data file does not appear in the Interactive Data
File because its XBRL tags are embedded within the Inline XBRL document

Filed herewith.
Indicates management contract or compensatory plan.

*
**
† Portions of this exhibit have been omitted pursuant to a request for confidential treatment.

82

Table of Contents

SIGNATURES

In accordance with Section 13 or 15(d) of the Exchange Act, the registrant caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.

SOLIGENIX, INC.
By: /s/ Christopher J. Schaber
Christopher J. Schaber, PhD
Chief Executive Officer and President

Date: March 15, 2024

In accordance with the Exchange Act, this report has been signed below by the following persons on behalf of the registrant
and in the capacities indicated and on the dates indicated.

Name

Capacity

Date

/s/ Christopher J. Schaber
Christopher J. Schaber, PhD

/s/ Gregg A. Lapointe
Gregg A. Lapointe, CPA

/s/ Diane L. Parks
Diane L. Parks, MBA

/s/ Robert J. Rubin
Robert J. Rubin, MD

/s/ Jerome B. Zeldis
Jerome B. Zeldis, MD, PhD

/s/ Jonathan Guarino   
Jonathan Guarino, CPA, CGMA

Chairman of the Board, Chief Executive
Officer
and
President (principal executive officer)

Director

Director

Director

Director

Chief Financial Officer, Senior Vice
President, and
Corporate Secretary (principal accounting
officer)

83

March 15, 2024

March 15, 2024

March 15, 2024

March 15, 2024

March 15, 2024

March 15, 2024

    
    
Table of Contents

SOLIGENIX, INC. AND SUBSIDIARIES
CONSOLIDATED FINANCIAL STATEMENTS

Table of Contents

Consolidated Balance Sheets as of December 31, 2023 and 2022
Consolidated Statements of Operations for the Years Ended December 31, 2023 and 2022
Consolidated Statements of Comprehensive Loss for the Years Ended December 31, 2023 and 2022
Consolidated Statements of Changes in Mezzanine Equity and Shareholders’ Equity (Deficit) for the Years Ended
December 31, 2023 and 2022
Consolidated Statements of Cash Flows for the Years Ended December 31, 2023 and 2022
Notes to Consolidated Financial Statements
Report of Independent Registered Public Accounting Firm (PCAOB ID No. 00677)
Report of Independent Registered Public Accounting Firm (PCAOB ID No. 00274)

Page
F-2
F-3
F-4
F-5

F-6
F-7 – F-24
F-26
F-28

F-1

Table of Contents

Soligenix, Inc. and Subsidiaries
Consolidated Balance Sheets
As of December 31, 2023 and 2022

Assets
Current assets:

Cash and cash equivalents
Contracts and grants receivable
Unbilled revenue
Research and development incentives receivable, current
Prepaid expenses and other current assets

Total current assets
Security deposit
Office furniture and equipment, net of accumulated depreciation of $121,320 and $114,766
Deferred issuance cost
Right-of-use lease assets
Research and development incentives receivable, net of current portion
Total assets

Liabilities, mezzanine equity and shareholders' equity/(deficit)
Current liabilities:

Accounts payable
Accrued expenses
Accrued compensation
Lease liabilities, current
Convertible debt, net of debt discount of $0 and $102,309

Total current liabilities
Non-current liabilities:
Convertible debt
Lease liabilities, net of current portion

Total liabilities

Commitments and contingencies (Note 10)

Mezzanine equity:

Series D preferred stock, $.001 par value; 0 and 50,000 shares authorized, none issued or
outstanding as of December 31, 2023 and December 31, 2022, respectively

Shareholders’ equity/(deficit):

Preferred stock, 350,000 and 300,000 shares authorized as of December 31, 2023 and
December 31, 2022, respectively; none issued or outstanding
Common stock, $.001 par value; 75,000,000 shares authorized; 10,378,238 and 2,908,578
shares issued and outstanding at December 31, 2023 and December 31, 2022, respectively
Additional paid-in capital
Accumulated other comprehensive income
Accumulated deficit

Total shareholders’ equity/(deficit)
Total liabilities, mezzanine equity and shareholders’ equity/(deficit)

December 31, 
2023

December 31, 
2022

8,446,158

$
—  

171,254
23,894
866,014
9,507,320
22,777
11,927

—  

$

$

229,834
25,468
9,797,326

1,111,226
2,418,002
251,115
121,765
2,250,000
6,152,108

1,010,934
111,862
7,274,904

13,359,615
115,130
—
104,198
274,209
13,853,152
22,777
18,481
20,206
340,987
24,114
14,279,717

3,865,796
2,307,746
336,692
108,948
9,897,691
16,516,873

—
233,627
16,750,500

—

—

43

—

10,378
228,193,977
22,243
(225,704,176)
2,522,422
9,797,326

2,909
217,064,964
24,747
(219,563,446)
(2,470,826)
14,279,717

$

$

$

$

$

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

F-2

    
    
 
 
  
 
   
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
  
 
  
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
Table of Contents

Soligenix, Inc. and Subsidiaries
Consolidated Statements of Operations
For the Years Ended December 31, 2023 and 2022

Year Ended
December 31, 

2023

2022

Revenues:

Licensing revenue
Grant revenue
Total revenues
Cost of revenues

Gross profit

Operating expenses:

Research and development
General and administrative

Total operating expenses
Loss from operations
Other income (expense):

Foreign currency transaction gain (loss)
Interest income (expense), net
Research and development incentives
CARES Act Employee Retention Credit
Other income
Loss on extinguishment of debt
Change in fair value of convertible debt

Total other income (expense)
Net loss before income taxes

Income tax benefit

Net loss applicable to common stockholders
Basic and diluted net loss per share
Basic and diluted weighted average common shares outstanding

$

— $

839,359
839,359
(742,048)
97,311

3,312,699
4,482,552
7,795,251
(7,697,940)

1,483
(49,129)
23,784
120,771
43,223
(393,791)
43,066
(210,593)
(7,908,533)
1,767,803
$ (6,140,730)
(0.79)
$
7,758,036

250,000
698,911
948,911
(550,822)
398,089

7,944,089
6,692,904
14,636,993
(14,238,904)

(30,549)
(822,611)
132,869
—
5,921
—
—
(714,370)
(14,953,274)
1,154,935
$ (13,798,339)
(4.81)
$
2,871,345

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

F-3

    
    
 
   
  
 
 
 
 
 
 
 
 
 
  
 
  
 
 
 
 
 
 
 
 
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Soligenix, Inc. and Subsidiaries
Consolidated Statements of Comprehensive Loss
For the Years Ended December 31, 2023 and 2022

Net loss
Other comprehensive income (loss):
Foreign currency translation adjustments
Comprehensive loss

Year Ended
December 31, 

$

$

2023

(6,140,730)

(2,504)
(6,143,234)

$

$

2022

(13,798,339)

(17,195)
(13,815,534)

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

F-4

    
    
 
 
Table of Contents

Soligenix, Inc. and Subsidiaries
Consolidated Statements of Changes in Mezzanine Equity and Shareholders’ Equity (Deficit)
For the Years Ended December 31, 2023 and 2022

Mezzanine Equity-
Series D Preferred Stock

Common Stock

Shares

Par Value      Shares

Par Value

Additional
Paid–In
Capital

Other
Comprehensive
Income (Loss)

Accumulated
Deficit

Total

     Accumulated         

— $

— 2,858,244

$

2,859

$ 216,442,904

$

41,942

$ (205,765,107)

$ 10,722,598

8,542

8

79,346

—  

—  

79,354

—

43

—

—

19,544

22,248

—

—

20

22

(2,593)

—  

—  

(2,593)

(43)

(20)

—  

—  

—

—

(43)

—

211,981

—  

—  

212,003

—  

—  

333,389

—  

—  

333,389

—  
—  

—  
—  

—  
—  

(17,195)

—  

—  

(13,798,339)

(17,195)
(13,798,339)

— $

43

2,908,578

$

2,909

$ 217,064,964

$

24,747

$ (219,563,446)

$

(2,470,826)

851,130

851

3,090,611

—  

—  

3,091,462

—

(43)

—

—

—

—

—

(113,217)

—  

—  

(113,217)

—

—

—

—

—

—

—

8,495,817

(834,061)

2,301,500

2,301

8,493,516

—

50,000

—

50

(834,061)

72,950

—  

—  

73,000

4,235,384

4,235

(936)

31,646

32

49,968

—

—

—

—

3,299

50,000

—  

—  

370,182

—  

—  

370,182

—  
—  

—  
—  

—  
—  

(2,504)

—  

—  

(6,140,730)

(2,504)
(6,140,730)

— $

— 10,378,238

$ 10,378

$ 228,193,977

$

22,243

$ (225,704,176)

$

2,522,422

Balance,
December 31, 2021 
Issuance of
common stock
pursuant to B. Riley
At Market Issuance
Sales Agreement
Issuance costs
associated with B.
Riley At Market
Issuance Sales
Agreement
Declaration of
Series D preferred
stock for stock
dividend
Fractional shares
issued in reverse
stock split
Issuance of
common stock to
vendors
Share-based
compensation
expense
Foreign currency
translation
adjustment
Net loss
Balance,
December 31, 2022 
Issuance of
common stock
pursuant to B. Riley
At Market Issuance
Sales Agreement
Issuance costs
associated with B.
Riley At Market
Issuance Sales
Agreement
Redemption of
Series D preferred
stock
Issuance of
common stock and
pre-funded warrants
in connection with
May 2023 public
offering
Issuance costs
associated with May
2023 public offering
Issuance of
common stock to
vendors
Issuance of
common stock upon
exercise of pre-
funded warrants
Issuance of
common stock for
unexercised
purchase option
Share-based
compensation
expense
Foreign currency
translation
adjustment
Net loss
Balance,
December 31, 2023 

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

F-5

Table of Contents

Soligenix, Inc. and Subsidiaries
Consolidated Statements of Cash Flows
For the Years Ended December 31, 2023 and 2022

Operating activities:
Net loss
Adjustments to reconcile net loss to net cash used in operating activities:

Amortization and depreciation
Non-cash lease expense
Share-based compensation
Issuance of common stock to vendors for services
Issuance of common stock for unexercised purchase option
Loss on extinguishment of debt
Change in fair value of convertible debt
Amortization of deferred issuance costs associated with convertible debt

Change in operating assets and liabilities:

Licensing, contracts and grants receivable
Prepaid expenses and other current assets
Research and development incentives receivable
Operating lease liability
Accounts payable and accrued expenses
Accrued compensation
Net cash used in operating activities

Investing activities:
Purchases of office furniture and equipment

Net cash used in investing activities

Financing activities:

Proceeds from issuance of common stock pursuant to B. Riley At Market Issuance Sales
Agreement
Costs associated with B. Riley At Market Issuance Sales Agreement
Proceeds from issuance of common stock and pre-funded warrants pursuant to public offering
Stock issuance costs associated with public offering
Proceeds from the exercise of pre-funded warrants
Convertible debt repayments

Net cash provided by financing activities

Effect of exchange rate on cash and cash equivalents

Net decrease in cash and cash equivalents
Cash and cash equivalents at beginning of year
Cash and cash equivalents at end of year

Supplemental information:

Cash paid for state income taxes
Cash paid for interest
Cash paid for lease liabilities:

Operating lease

Non-cash investing and financing activities:

Right-of-use assets and lease liabilities recorded
Deferred issuance cost reclassified to additional paid-in capital
Declaration of Series D preferred stock for stock dividend
Redemption of Series D preferred stock for stock dividend

$

$
$

$

$
$
$
$

2023

2022

$

(6,140,730)

$

(13,798,339)

6,554
111,153
370,182
73,000
50,000
393,791
(43,066)
12,518

(56,124)
(591,805)
90,016
(108,948)
(2,685,073)
(85,577)
(8,604,109)

—
—

3,091,462
(93,011)
8,495,817
(834,061)
3,299
(7,000,000)
3,663,506
27,146
(4,913,457)
13,359,615
8,446,158

20,730
552,058

133,817

—
20,208
—
43

$

$
$

$

$
$
$
$

24,562
112,714
333,389
212,003
—
—
—
41,538

23,759
8,694
73,374
(111,122)
396,651
33,756
(12,649,021)

(13,073)
(13,073)

79,354
(2,533)
—
—
—
—
76,821
(99,009)
(12,684,282)
26,043,897
13,359,615

16,043
857,411

133,300

347,546
60
43
—

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

F-6

    
    
 
   
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
 
 
 
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
 
  
 
  
 
  
Table of Contents

Note 1. Nature of Business

Basis of Presentation

Soligenix, Inc. and Subsidiaries
Notes to Consolidated Financial Statements

Soligenix,  Inc.  (the  “Company”)  is  a  late-stage  biopharmaceutical  company  focused  on  developing  and  commercializing
products  to  treat  rare  diseases  where  there  is  an  unmet  medical  need.  The  Company  maintains  two  active  business
segments: Specialized BioTherapeutics and Public Health Solutions.

The Company’s Specialized BioTherapeutics business segment is developing and moving toward potential commercialization
of HyBryte™ (a proposed proprietary name of SGX301 or synthetic hypericin sodium), a novel photodynamic therapy (“PDT”)
utilizing topical synthetic hypericin activated with safe visible light for the treatment of cutaneous T-cell lymphoma (“CTCL”).
With successful completion of the Phase 3 FLASH (Fluorescent Light And Synthetic Hypericin) study, regulatory approval is
being  pursued  in  the  United  States  (“U.S.”)  and  Europe.  Following  submission  of  a  new  drug  application  (“NDA”)  for
HyBryte™ in the treatment of CTCL in December 2022, the Company received a refusal to file (“RTF”) letter from the U.S.
Food and Drug Administration (“FDA”) in February 2023. In April 2023, the Company had a Type A meeting with the FDA to
clarify and respond to the issues identified in the RTF letter and to seek additional guidance concerning information that the
FDA  would  require  for  a  resubmitted  NDA  to  be  deemed  acceptable  to  file,  in  order  to  advance  HyBryte™  towards  U.S.
marketing  approval  and  commercialization.  In  order  to  accept  an  NDA  filing  for  HyBryte™,  the  FDA  is  requiring  positive
results from a second, Phase 3 pivotal study in addition to the Phase 3, randomized, double-blind, placebo-controlled FLASH
study  previously  conducted  in  this  orphan  indication.  Based  on  this  feedback,  the  Company  is  collaboratively  engaging  in
active  discussions  with  both  the  FDA  and  the  European  Medicines  Agency  (“EMA”)  in  order  to  define  the  protocol  and
evaluate  the  feasibility  of  conducting  the  additional  Phase  3  clinical  trial  evaluating  HyBryte™  in  the  treatment  of  CTCL  in
support of potential marketing approval.

Development programs in this business segment also include expansion of synthetic hypericin (SGX302) into psoriasis, the
Company’s  first-in-class  Innate  Defense  Regulator  (“IDR”)  technology,  and  dusquetide  (SGX942  and  SGX945)  for  the
treatment  of  inflammatory  diseases,  including  oral  mucositis  in  head  and  neck  cancer  and  aphthous  ulcers  in  Behçet’s
Disease.

The Company’s Public Health Solutions business segment includes development programs for RiVax®, its ricin toxin vaccine
candidate  and  SGX943,  its  therapeutic  candidate  for  antibiotic  resistant  and  emerging  infectious  disease,  and  vaccine
programs, including a program targeting filoviruses (such as Marburg and Ebola) and CiVax™, our vaccine candidate for the
prevention  of  COVID-19  (caused  by  SARS-CoV-2).  The  development  of  the  vaccine  programs  incorporates  the  use  of  the
Company’s  proprietary  heat  stabilization  platform  technology,  known  as  ThermoVax®.  To  date,  this  business  segment  has
been  supported  with  government  grant  and  contract  funding  from  the  National  Institute  of  Allergy  and  Infectious  Diseases
(“NIAID”), the Biomedical Advanced Research and Development Authority and the Defense Threat Reduction Agency.

The Company primarily generates revenues under government grants and contracts principally from the National Institutes of
Health (“NIH”). The Company was awarded a subcontract that originally provided for approximately $1.5 million from a NIAID
grant over two years for development of CiVax™ and a subcontract that originally provided for approximately $1.1 million from
a FDA Orphan Products Development grant over four years for an expanded study of HyBryte™ in the treatment of CTCL.
The Company will continue to apply for additional government funding.

The  Company  is  subject  to  risks  common  to  companies  in  the  biotechnology  industry  including,  but  not  limited  to,
development  of  new  technological  innovations,  dependence  on  key  personnel,  protections  of  proprietary  technology,
compliance with the FDA regulations, and other regulatory authorities, litigation, and product liability.

Liquidity

In  accordance  with  Accounting  Standards  Codification  205-40,  Going  Concern,  the  Company  has  evaluated  whether  there
are conditions and events, considered in the aggregate, that raise substantial doubt about the Company’s ability to continue
as a going concern within one year after the date the consolidated financial statements are issued. As of December 31, 2023,
the Company had an accumulated deficit of $225,704,176 and working capital of $3,355,212. During

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the  year  ended  December  31,  2023,  the  Company  incurred  a  net  loss  of  $6,140,730  and  used  $8,604,109  of  cash  in
operating activities. The Company expects to continue to generate losses in the foreseeable future. The Company’s liquidity
needs  will  be  determined  largely  by  the  budgeted  operational  expenditures  incurred  in  regards  to  the  progression  of  its
product  candidates.  Management  believes  that  the  Company  has  sufficient  resources  available  to  support  its  development
activities and business operations and timely satisfy its obligations as they become due into the fourth quarter of 2024. The
Company  does  not  have  sufficient  cash  and  cash  equivalents  as  of  the  date  of  filing  this  Annual  Report  on  Form  10-K  to
support its operations for at least the 12 months following the date the financial statements are issued. These conditions raise
substantial doubt about the Company’s ability to continue as a going concern through 12 months after the date the financial
statements are issued.

To  alleviate  the  conditions  that  raise  substantial  doubt  about  the  Company’s  ability  to  continue  as  a  going  concern,  the
Company  plans  to  secure  additional  capital,  potentially  through  a  combination  of  public  or  private  equity  offerings  and
strategic  transactions,  including  potential  alliances  and  drug  product  collaborations,  securing  additional  proceeds  from
government contract and grant programs, securing additional proceeds available from the sale of shares of the common stock
via  an  At  Market  Issuance  Sales  Agreement  and  potentially  amending  the  loan  agreement  with  Pontifax  to  reduce  the
conversion price in order to allow for conversion of a portion of the debt which will reduce the Company’s debt repayments;
however,  none  of  these  alternatives  are  committed  at  this  time.  There  can  be  no  assurance  that  the  Company  will  be
successful in obtaining sufficient funding on terms acceptable to it to fund continuing operations, if at all, identify and enter into
any  strategic  transactions  that  will  provide  the  capital  that  it  will  require  or  achieve  the  other  strategies  to  alleviate  the
conditions  that  raise  substantial  doubt  about  the  Company’s  ability  to  continue  as  a  going  concern.  If  none  of  these
alternatives  are  available,  or  if  available,  are  not  available  on  satisfactory  terms,  the  Company  will  not  have  sufficient  cash
resources and liquidity to fund its business operations for at least the 12 months following the date the financial statements
are issued. The failure to obtain sufficient capital on acceptable terms when needed may require the Company to delay, limit,
or  eliminate  the  development  of  business  opportunities  and  its  ability  to  achieve  its  business  objectives  and  its
competitiveness,  and  its  business,  financial  condition,  and  results  of  operations  will  be  materially  adversely  affected.  In
addition, market instability, including as a result of geopolitical instability, may reduce the Company’s ability to access capital,
which  could  negatively  affect  its  liquidity  and  ability  to  continue  as  a  going  concern.  In  addition,  the  perception  that  the
Company may not be able to continue as a going concern may cause others to choose not to deal with it due to concerns
about its ability to meet its contractual obligations.

The accompanying financial statements have been prepared on a going concern basis, which contemplates the realization of
assets  and  satisfaction  of  liabilities  in  the  normal  course  of  business,  and  do  not  include  any  adjustments  relating  to
recoverability  and  classification  of  recorded  asset  amounts  or  the  amounts  and  classification  of  liabilities  that  might  be
necessary should the Company be unable to continue as a going concern.

As  of  December  31,  2023,  the  Company  had  cash  and  cash  equivalents  of  $8,446,158  as  compared  to  $13,359,615  as  of
December 31, 2022, representing a decrease of $4,913,457 or 37%. As of December 31, 2023, the Company had working
capital  of  $3,355,212  as  compared  to  a  working  capital  deficit  of  ($2,663,721)  as  of  December  31,  2022,  representing  an
increase of $6,018,933 or 226%. The decrease in cash and cash equivalents was primarily related to cash used in operating
activities. The increase in working capital is primarily the result of the net proceeds received from financing activities partially
offset by the immediate paydown of $5 million of outstanding debt principal balance and any accrued interest resulting from
the amendment to the convertible debt financing agreement with Pontifax during the year ended December 31, 2023.

Management’s business strategy can be outlined as follows:

● Following positive primary endpoint results for the Phase 3 FLASH (Florescent Light Activated Synthetic Hypericin)
clinical trial of HyBryte™ in CTCL as well as further statistically significant improvement in response rates with longer
treatment (18 weeks compared to 12 and 6 weeks of treatment), collaboratively engage in discussions with both the
FDA and the EMA in order to define the protocol and evaluate the feasibility of conducting a second clinical study in
order  to  advance  HyBryte™  towards  U.S.  marketing  approval  and  commercialization  while  continuing  to  explore
potential marketing approval and partnership in Europe.

● Expanding  development  of  synthetic  hypericin  under  the  research  name  SGX302  into  psoriasis  with  the
conduct of a Phase 2a clinical trial, following the positive Phase 3 FLASH study and positive proof-of-concept
demonstrated in a small Phase 1/2 pilot study in mild-to-moderate psoriasis patients.

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● Following  feedback  from  the  United  Kingdom  (“UK”)  Medicines  and  Healthcare  products  Regulatory  Agency
(“MHRA”) that a second Phase 3 clinical trial of SGX942 (dusquetide) in the treatment in oral mucositis would
be  required  to  support  a  marketing  authorization;  design  a  second  study  and  attempt  to  identify  a  potential
partner(s) to continue this development program.

● Expanding  development  of  dusquetide  under  the  research  name  SGX945  into  Behçet’s  Disease  with  the
conduct of a Phase 2a clinical trial, where previous studies with dusquetide in oral mucositis have validated the
biologic activity in aphthous ulcers induced by chemotherapy and radiation.

● Continue  development  of  the  Company’s  heat  stabilization  platform  technology,  ThermoVax®,  in  combination
with its programs for RiVax® (ricin toxin vaccine), and filovirus vaccines (targeting Ebola, Sudan, and Marburg
viruses  and  multivalent  combinations),  with  U.S.  government  or  non-governmental  organization  funding
support.

● Continue to apply for and secure additional government funding for the Specialized BioTherapeutics and Public

Health Solutions programs through grants, contracts and/or procurements.

● Pursue business development opportunities for pipeline programs, as well as explore all strategic alternatives,

including but not limited to merger/acquisition strategies.

● Acquire or in-license new clinical-stage compounds for development, as well as evaluate new indications with

existing pipeline compounds for development.

The Company’s plans with respect to its liquidity management include, but are not limited to, the following:

● The  Company  has  up  to  approximately  $844,000  in  active  government  grant  funding  still  available  as  of
December 31, 2023 to support its associated research programs through May 2026, provided the federal agencies do
not  elect  to  terminate  the  grants  for  convenience.  The  Company  plans  to  submit  additional  contract  and  grant
applications for further support of its programs with various funding agencies. However, there can be no assurance
that the Company will obtain additional governmental grant funding.

● The Company has continued to use equity instruments to provide a portion of the compensation due to vendors and

collaboration partners and expects to continue to do so for the foreseeable future.

● The  Company  will  continue  to  pursue  Net  Operating  Loss  (“NOL”)  sales  in  the  state  of  New  Jersey  pursuant  to  its

Technology Business Tax Certificate Transfer Program if the program is available.

● The Company plans to pursue potential partnerships for pipeline programs as well as continue to explore merger and
acquisition strategies. However, there can be no assurances that the Company can consummate such transactions.

● The Company completed a public offering of 2,301,500 shares of its common stock, pre-funded warrants to purchase
4,237,000  shares  of  its  common  stock  and  common  warrants  to  purchase  up  to  6,538,500  shares  of  its  common
stock  at  a  combined  public  offering  price  of  $1.30.  The  pre-funded  warrants  had  an  exercise  price  of  $0.001.  The
common warrants have an exercise price of $1.50 per share, are exercisable immediately and expire five years from
the issuance date. The total gross proceeds to the Company from this offering was approximately $8.5 million before
deducting commissions and other estimated offering expenses. The Company plans to use the proceeds for further
support of its programs, as well as for working capital; and

●

The  Company  is  currently  evaluating  additional  equity/debt  financing  opportunities  on  an  ongoing  basis  and  may
execute them when appropriate. However, there can be no assurances that it can consummate such a transaction, or
consummate a transaction at favorable pricing.

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Note 2. Summary of Significant Accounting Policies

Principles of Consolidation

The consolidated financial statements include Soligenix, Inc., and its wholly and majority owned subsidiaries. All significant
intercompany accounts and transactions have been eliminated as a result of consolidation.

Operating Segments

Operating segments are defined as components of an enterprise about which separate financial information is available that
is evaluated on a regular basis by the chief operating decision maker, or decision-making group, in deciding how to allocate
resources to an individual segment and in assessing the performance of the segment. The Company divides its operations
into two operating segments: Specialized BioTherapeutics and Public Health Solutions.

Cash and Cash Equivalents

The  Company  considers  all  highly  liquid  investments  with  maturities  of  three  months  or  less  when  purchased  to  be  cash
equivalents.

Contracts and Grants Receivable

In  June  2016,  the  Financial  Accounting  Standards  Board  (“FASB”)  issued  Accounting  Standards  Update  (“ASU”)  2016-13,
Financial Instruments – Credit Losses (Topic 326) and subsequently related amendments (ASU 2018-19, ASU 2019-04, ASU
2019-05,  ASU  2019-10,  ASU  2019-11,  and  ASU  2022-02).  This  guidance  replaces  the  existing  incurred  loss  impairment
guidance  and  establishes  a  single  allowance  framework  for  financial  assets  carried  at  amortized  cost  based  on  expected
credit  losses.  The  estimate  of  expected  credit  losses  requires  the  incorporation  of  historical  information,  current  conditions,
and  reasonable  and  supportable  forecasts.  The  Company  adopted  this  new  accounting  standard  effective  January  1,  2023
and  all  of  the  related  amendments  using  the  retrospective  method.  The  Company  determined  there  was  no  effect  to  its
opening balance of shareholders’ equity of initially applying the new credit loss standard to its contracts and grants receivable.
There  was  no  significant  impact  to  the  Company’s  operating  results  for  the  current  period  due  to  this  standard  update.
Management has evaluated the adoption of ASC Topic 326 and concluded the effect of the adoption was immaterial to the
financial statements as a whole.

Contracts  and  grants  receivable  consist  of  amounts  due  from  various  grants  from  the  NIH  and  contracts  from  NIAID,  an
institute  of  NIH,  for  costs  incurred  prior  to  the  period  end  under  reimbursement  contracts.  The  amounts  were  billed  to  the
respective  governmental  agencies  in  the  month  subsequent  to  period  end  and  collected  shortly  thereafter.  Accordingly,  no
allowance for credit losses has been established. If amounts become uncollectible, they are charged to operations.

Impairment of Long-Lived Assets

Office furniture and equipment, right of use assets and website development costs with finite lives are evaluated and reviewed
for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. The
Company recognizes impairment of long-lived assets in the event the net book value of such assets exceeds the estimated
future undiscounted cash flows attributable to such assets. If the sum of the expected undiscounted cash flows is less than
the carrying value of the related asset or group of assets, a loss is recognized for the difference between the fair value and
the carrying value of the related asset or group of assets. Such analyses necessarily involve significant judgment.

The Company did not record any impairment of long-lived assets for the years ended December 31, 2023 and 2022.

Fair Value of Financial Instruments

FASB ASC 820 — Fair Value Measurements and Disclosures, defines fair value as the price that would be received to sell an
asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. FASB ASC
820  requires  disclosures  about  the  fair  value  of  all  financial  instruments,  whether  or  not  recognized,  for  financial  statement
purposes. Disclosures about the fair value of financial instruments are based on pertinent information available

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to the Company on December 31, 2023 and 2022. Accordingly, the estimates presented in these financial statements are not
necessarily indicative of the amounts that could be realized on disposition of the financial instruments.

FASB ASC 820 specifies a hierarchy of valuation techniques based on whether the inputs to those valuation techniques are
observable or unobservable. Observable inputs reflect market data obtained from independent sources, while unobservable
inputs reflect market assumptions. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for
identical assets or liabilities (Level 1 measurement) and the lowest priority to unobservable inputs (Level 3 measurement).

The three levels of the fair value hierarchy are as follows:

● Level 1 — Quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to
access at the measurement date. Level 1 primarily consists of financial instruments whose value is based on quoted
market prices such as exchange-traded instruments and listed equities.

● Level 2 — Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either
directly  or  indirectly.  Level  2  includes  financial  instruments  that  are  valued  using  models  or  other  valuation
methodologies.  These  models  consider  various  assumptions,  including  volatility  factors,  current  market  prices  and
contractual  prices  for  the  underlying  financial  instruments.  Substantially  all  of  these  assumptions  are  observable  in
the marketplace, can be derived from observable data or are supported by observable levels at which transactions
are executed in the marketplace.

● Level 3 — Unobservable inputs for the asset or liability. Financial instruments are considered Level 3 when their fair
values are determined using pricing models, discounted cash flows or similar techniques and at least one significant
model assumption or input is unobservable.

In instances where the determination of the fair value measurement is based on inputs from different levels of the fair value
hierarchy, the level in the fair value hierarchy within which the entire fair value measurement falls is based on the lowest level
input  that  is  significant  to  the  fair  value  measurement  in  its  entirety.  The  Company’s  assessment  of  the  significance  of  a
particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset or
liability.

The  carrying  amounts  reported  in  the  consolidated  balance  sheets  for  cash  and  cash  equivalents,  contracts  and  grants
receivable,  research  and  development  incentives  receivable,  accounts  payable,  accrued  expenses,  and  accrued
compensation approximate their fair value based on the short-term maturity of these instruments.

The carrying amount reported in the consolidated balance sheet as of December 31, 2023 for the convertible debt is its fair
value – see Note 5. The principal amount of the convertible debt was $3,000,000 at December 31, 2023 and the fair value
was  approximately  $3,260,934.  The  fair  value  of  the  debt  was  estimated  using  the  Monte  Carlo  valuation  method,  which
utilizes certain unobservable inputs. As a result, the fair value estimate represents a Level 3 measurement.

A roll forward of the carrying value of the convertible debt to December 31, 2023 is as follows:

Convertible debt at fair value

$

—

$

3,304,000

$

(43,066)

$

3,260,934

Balance
December 31, 2022

Issued

Adjustment to
fair value

Balance
December 31, 2023

Deferred Issuance Costs

The Company capitalizes certain legal, professional accounting and other third-party fees that are directly associated with in-
process  equity  financings  as  deferred  issuance  costs  until  such  financings  are  consummated.  After  consummation  of  the
equity financing, these costs are recorded in shareholders’ equity as a reduction of additional paid-in capital generated as a
result of the issuance.

Revenue Recognition

The Company’s revenues include revenues generated from government contracts and grants. The revenue from government
contracts and grants is based upon subcontractor costs and internal costs incurred that are specifically covered

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by  the  contracts  and  grants,  plus  a  facilities  and  administrative  rate  that  provides  funding  for  overhead  expenses  and
management  fees.  These  revenues  are  recognized  when  expenses  have  been  incurred  by  subcontractors  or  when  the
Company incurs reimbursable internal expenses that are related to the government contracts and grants.

The  Company  also  records  revenue  from  contracts  with  customers  in  accordance  with  Accounting  Standards  Codification
Topic  606  (“ASC  606”),  Revenue  From  Contracts  with  Customers.  Under  ASC  606,  an  entity  recognizes  revenue  when  its
customer obtains control of promised goods or services, in an amount that reflects the consideration that 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. The Company only applies the five-step model to contracts when it is probable that the Company will
collect  the  consideration  it  is  entitled  to  in  exchange  for  the  goods  or  services  it  transfers  to  the  customer.  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.

Certain amounts received from or billed to customers in accordance with contract terms are deferred and recognized as future
performance  obligations  are  satisfied.  All  amounts  earned  under  contracts  with  customers  other  than  sales-based  royalties
are classified as licensing revenue. Sales-based royalties under the Company’s license agreements would be recognized as
royalty revenue at the later of (i) when the related sales occur, or (ii) when the performance obligation to which some or all of
the royalty has been allocated has been satisfied or partially satisfied. To date, the Company has not recognized any royalty
revenue.

Research and Development Costs

Research and development costs are charged to expense when incurred in accordance with FASB ASC 730, Research and
Development.  Research  and  development  includes  costs  such  as  clinical  trial  expenses,  contracted  research  and  license
agreement  fees  with  no  alternative  future  use,  supplies  and  materials,  salaries,  share-based  compensation,  employee
benefits, equipment depreciation and allocation of various corporate costs.

Share-Based Compensation

Stock  options  are  issued  with  an  exercise  price  equal  to  the  market  price  on  the  date  of  grant.  Stock  options  issued  to
directors  upon  re-election  vest  quarterly  for  a  period  of  one  year  (new  director  issuances  are  fully  vested  upon  issuance).
Stock  options  issued  to  employees  generally  vest  25%  on  the  grant  date,  then  25%  each  subsequent  year  for  a  period  of
three years. These options have a ten year life for as long as the individuals remain employees or directors. In general, when
an employee or director terminates their position, the options will expire within three months, unless otherwise extended by
the Board.

From time to time, the Company issues restricted shares of common stock to vendors and consultants as compensation for
services performed under the Company’s 2015 Equity Incentive Plan (the “2015 Plan”). The 2015 Plan provides for the grant
of  stock  options,  restricted  stock,  deferred  stock  and  unrestricted  stock  to  the  Company’s  employees  and  non-employees
(including  consultants).  The  shares  issued  under  the  2015  Plan  are  registered  on  Form  S-8  (SEC  File  No.  333-208515).
However, as shares of common stock are not covered by a reoffer prospectus, the certificates reflecting such shares reflect a
Securities  Act  of  1933,  as  amended  restrictive  legend.  Stock  compensation  expense  for  equity-classified  awards  to  non-
employees is measured on the date of grant and is recognized when the services are performed.

The fair value of options issued during the years ended December 31, 2023 and 2022 was estimated using the Black-Scholes
option-pricing model and the following assumptions:

● a dividend yield of 0%;

● an expected life of four years;

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● volatility of 94% - 110% for 2023 and 84% - 87% for 2022; and

● risk-free interest rates ranging from 3.48% to 4.35% in 2023 and ranging from 1.12% to 4.51% in 2022.

The fair value of each option grant made during 2023 and 2022 was estimated on the date of each grant and recognized as
share-based  compensation  expense  ratably  over  the  option  vesting  periods,  which  approximates  the  service  period.  The
expected term of options granted is derived using company history of options exercised. The risk-free rate is based on the
U.S.  Treasury  yield  curve  in  effect  at  the  time  of  grant  for  the  period  of  the  expected  term.  The  Company  accounts  for
forfeitures as they are incurred.

Foreign Currency Transactions and Translation

In  2018,  the  Company  changed  the  status  of  a  wholly-owned  subsidiary  in  the  UK  from  inactive  to  active  and  incurred
expenditures in multiple currencies including the U.S. dollar, the British Pound and the Euro to fund its clinical trial operations
in the UK and select countries in Europe. In accordance with FASB ASC 830 Foreign Currency Matters,  the  UK  subsidiary
expresses  its  U.S.  dollar  and  Euro  denominated  transactions  in  its  functional  currency,  the  British  Pound,  with  related
transaction  gains  or  losses  included  in  net  loss.  On  a  quarterly  basis,  the  financial  statements  of  the  UK  subsidiary  are
translated into U.S. dollars and consolidated into the Company’s financials, with related translation adjustments reported as a
cumulative  translation  adjustment  (“CTA”),  which  is  a  component  of  accumulated  other  comprehensive  loss.  In  2023  and
2022,  the  Company  recognized  a  foreign  currency  transaction  gain  of  $1,483  and  a  foreign  currency  transaction  loss  of
($30,549), respectively, in the accompanying consolidated statements of operations.

Income Taxes

Deferred  tax  assets  and  liabilities  are  recognized  for  the  future  tax  consequences  attributable  to  differences  between  the
financial statement carrying amounts of existing assets and liabilities and their respective tax basis. A valuation allowance is
established  when  it  is  more  likely  than  not  that  all  or  a  portion  of  a  deferred  tax  asset  will  not  be  realized.  A  review  of  all
available positive and negative evidence is considered, including the Company’s current and past performance, the market
environment in which the Company operates, the utilization of past tax credits, and the length of carryback and carryforward
periods. Deferred tax assets and liabilities are measured utilizing tax rates expected to apply to taxable income in the years in
which those temporary differences are expected to be recovered or settled. The Company sold 2022, 2021 and 2020 New
Jersey  NOL  carryforwards  resulting  in  the  recognition  of  income  tax  benefits,  net  of  transaction  costs  of  $1,767,803  and
$1,154,935  during  the  years  ended  December  31,  2023  and  2022,  respectively.  The  Company  sold  its  2022  New  Jersey
NOLs  and  has  recorded  a  receivable  of  $606,606  which  is  included  in  prepaid  expenses  and  other  current  assets  on  the
accompanying consolidated balance sheet for the year ended December 31, 2023. The Company recognizes accrued interest
and penalties associated with uncertain tax positions, if any, as part of income tax expense. There were no tax related interest
and penalties recorded for 2023 and 2022. Additionally, the Company has not recorded an asset for unrecognized tax benefits
or a liability for uncertain tax positions at December 31, 2023 or 2022.

Research and Development Incentive Income and Receivable

The Company recognizes other income from UK research and development incentives when there is reasonable assurance
that the income will be received, the relevant expenditure has been incurred, and the consideration can be reliably measured.
The small or medium sized enterprise (“SME”) research and development tax relief program supports companies that seek to
research and develop an advance in their field and is governed through legislative law by HM Revenue & Customs as long as
specific eligibility criteria are met.

Management  has  assessed  the  Company’s  research  and  development  activities  and  expenditures  to  determine  which
activities  and  expenditures  are  likely  to  be  eligible  under  the  SME  research  and  development  tax  relief  program  described
above.  At  each  period  end,  management  estimates  the  refundable  tax  offset  available  to  the  Company  based  on  available
information  at  the  time.  As  the  tax  incentives  may  be  received  without  regard  to  an  entity’s  actual  tax  liability,  they  are  not
subject  to  accounting  for  income  taxes.  As  a  result,  amounts  realized  under  the  SME  research  and  development  tax  relief
program are recorded as a component of other income.

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Table of Contents

The  research  and  development  incentive  receivable  represents  an  amount  due  in  connection  with  the  above-described  tax
relief program. The Company has recorded a research and development incentive receivable of approximately $49,000 and
$128,000 as of December 31, 2023 and 2022, respectively in the consolidated balance sheets.

The following table shows the change in the UK research and development incentives receivable from December 31, 2022 to
December 31, 2023:

Balance at December 31, 2022
UK research and development incentives, transfer
UK research and development incentives
Adjustments to 2021 and 2022 incentives earned
UK research and development incentives cash receipt
Foreign currency translation
Balance at December 31, 2023

Loss Per Share

Current

Long-Term

Total

$

$

104,198
24,114
—
(1,113)
(104,422)
1,117
23,894

$

$

24,114 $
(24,114)
24,897
—
—  
571  
25,468 $

128,312
—
24,897
(1,113)
(104,422)
1,688
49,362

Basic earnings per share (“EPS”) excludes dilution and is computed by dividing loss applicable to common stockholders by
the weighted-average number of common shares outstanding for the period. Included within the Company’s weighted average
common shares outstanding for the year ended December 31, 2023, are common shares issuable upon the exercise of the
pre-funded warrants associated with the May 2023 public offering, as these pre-funded warrants are exercisable at any time
for nominal consideration, and as such, the shares are considered outstanding for the purpose of calculating basic and diluted
net loss per share attributable to common stockholders. Diluted EPS reflects the potential dilution that could occur if securities
or  other  contracts  to  issue  common  stock  were  exercised  or  converted  into  common  stock  or  resulted  in  the  issuance  of
common  stock  that  shared  in  the  earnings  of  the  entity.  Since  there  is  a  significant  number  of  options  and  warrants
outstanding, fluctuations in the actual market price can have a variety of results for each period presented.

The following table summarizes potentially dilutive adjustments to the number of common shares which were excluded from
the diluted calculation because their effect would be anti-dilutive due to the losses in each period:

Common stock purchase warrants
Stock options
Convertible debt
Total

Use of Estimates and Assumptions

December 31, 
2023

December 31, 
2022

6,538,073

906,892  
2,114,403  
9,559,368  

667
192,273
162,602
355,542

The  preparation  of  financial  statements  in  conformity  with  accounting  principles  generally  accepted  in  the  U.S.  requires
management  to  make  estimates  and  assumptions  such  as  the  fair  value  of  warrants  and  stock  options  and  to  accrue  for
clinical trials in process that affect the reported amounts in the financial statements and accompanying notes. Actual results
could differ from those estimates.

Note 3. Leases

The Company classifies a lease for its office space at 29 Emmons Drive, Suite B-10 in Princeton, New Jersey as an operating
lease, and recorded a related right-of-use lease asset and lease liability accordingly. Pursuant to an amendment executed on
June 21, 2022, the lease has been extended to October 2025. The current rent of $11,367 per month will be maintained until
November 2024 when it will be increased to $11,625 where it will remain until expiration. As of December 31, 2023 and 2022,
the  Company’s  consolidated  balance  sheets  included  a  right-of-use  lease  asset  of  $229,834  and  $340,987  for  the  office
space, respectively. The Company’s consolidated balance sheets as of December 31, 2023 and 2022 included corresponding
lease liabilities of $233,627 and $342,575 for the office space, respectively.

F-14

    
    
 
 
 
 
 
 
 
 
    
    
 
 
 
Operating
Lease

136,917
116,250
19,540
233,627

8.47 %  
22

106,155
347,546
112,714
340,987
111,153
229,834

106,151
347,546
111,122
342,575
108,948
233,627

134,892
134,892

136,022
136,022

$

$

$

$

$

$

$
$

$
$

Table of Contents

The following represents a reconciliation of contractual lease cash flows to the right-of-use lease asset and liability recognized
in the financial statements:

Contractual cash payments for the remaining lease term as of December 31, 2023
2024
2025
Less implied interest
Total
Discount rate applied
Remaining lease term (months) as of December 31, 2023

Right-of-use lease asset:
Right-of-use lease asset, January 1, 2022
New lease extension June 21, 2022
Less: reduction/amortization
Right-of-use lease asset, December 31, 2022
Less: reduction/amortization
Right-of-use lease asset, December 31, 2023

Lease liability:
Lease liability, January 1, 2022
New lease extension June 21, 2022
Less: repayments
Lease liability, December 31, 2022
Less: repayments
Lease liability, December 31, 2023

Lease expense for the year ended December 31, 2022:
Lease expense
Total

Lease expense for the year ended December 31, 2023:
Lease expense
Total

Note 4. Accrued Expenses

The following is a summary of the Company’s accrued expenses:

Clinical trial expenses
Other
Total

Note 5. Debt

2023

December 31, 

1,993,784
424,218
2,418,002

$

$

2022

1,884,117
423,629
2,307,746

$

$

In December 2020, the Company entered into a $20 million convertible debt financing agreement with Pontifax Medison Debt
Financing (“Pontifax”), the healthcare-dedicated venture and debt fund of the Pontifax life science funds. Under the terms of
the  agreement  with  Pontifax,  the  Company  had  access  to  up  to  $20  million  in  convertible  debt  financing  in  three  tranches,
which will mature on June 15, 2025 and had an interest-only period for the first two years with a fixed interest rate of 8.47%
on borrowed amounts and an interest rate of 1% on amounts available but not borrowed as an unused line of credit fee. After
the interest-only period, the outstanding principal is to be repaid in quarterly payments of $1 million each

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commencing  in  the  first  quarter  of  2023.  The  agreement  is  secured  by  a  lien  covering  substantially  all  of  the  Company’s
assets, other than intellectual property.

Upon the closing of this transaction, the Company accessed the first tranche of $10 million, had the option to draw the second
tranche of $5 million at any time during the initial 12 months of the loan and the third tranche of $5 million upon filing of the
HyBryte™ NDA, subject to certain conditions. The Company elected to let the options to borrow both the second and third
tranches expire as of December 15, 2021 and March 15, 2022, respectively.

On April 19, 2023, the Company entered into an amendment to the convertible debt financing agreement dated December 15,
2020 with Pontifax. The amendment called for the immediate payment of $5 million of the outstanding principal balance and
any  accrued  interest,  waived  any  prepayment  charge  in  connection  with  the  repayment  of  this  amount  and  resulted  in  an
outstanding principal balance of $3 million. The amendment also provided for a new interest only period from the date of the
amendment through June 30, 2024, reduced quarterly principal repayments from $1 million to $750,000 and eliminated the
minimum  cash  covenant.  Further,  the  amendment  reduced  the  conversion  price  with  respect  to  the  remaining  principal
amount under the agreement to (i) 90% of the closing price of the Company’s common stock on the day before the delivery of
the conversion notice with respect to the first 588,599 shares of the Company’s common stock issuable upon conversion and
to (ii) $1.70 with respect to all shares of the Company’s common stock issuable upon conversion in excess of the first 588,599
shares so issued. The remaining terms of the agreement remain in effect without modification.

The  amendment  to  the  convertible  debt  financing  agreement  with  Pontifax  resulted  in  the  extinguishment  of  the  original
convertible  debt  for  accounting  purposes.  The  Company  concluded  that  the  amended  debt  instrument  has  an  embedded
derivative that requires bifurcation pursuant to ASC 815-15-25-1 and qualifies for the fair value option in accordance with ASC
815-15-25-4  through  ASC  815-15-25-6.  The  Company  elected  to  account  for  the  amended  convertible  debt  using  the  fair
value option, which requires the Company to record changes in fair value as a component of other income or expense.  The
fair  value  of  the  convertible  debt  on  the  date  of  the  amendment  was  approximately  $3,304,000,  which  resulted  in  the
recognition of a loss on extinguishment of approximately $394,000 on the Company’s accompanying consolidated statements
of operations for the year ended December 31, 2023. The fair value of the convertible debt as of December 31, 2023 was
approximately $3,260,934, which resulted in the recognition of $43,066 of other income from the change in the fair value of
the  convertible  debt  on  the  Company’s  accompanying  consolidated  statements  of  operations  for  the  year  ended
December 31, 2023. The fair value of the convertible debt was estimated using the Monte Carlo valuation method.

Assumptions
Stock price
Volatility
Discount rate
Risk-free rate

$

4/19/2023

9/30/2023

12/31/2023

$

1.72
75.20%
16.28%
4.27%

$

0.56
110.50%
14.84%
5.24%

0.76
141.90%
13.62%
4.65%

Interest expense incurred during the years ended December 31, 2023 and 2022 was $402,615 and $847,000, respectively.
Interest expense paid during the years ended December 31, 2023 and 2022 was $552,058 and $857,411, respectively.

Pontifax  may  elect  to  convert  the  outstanding  loan  drawn  into  shares  of  the  Company’s  common  stock  at  any  time  prior  to
repayment.  There  was  $3,000,000  of  principal  and  $63,351  of  accrued  interest  outstanding  as  of  December  31,  2023.The
Convertible Notes were convertible at (i) 90% of the closing price of our common stock on the day before the delivery of the
conversion notice with respect to the first 588,599 shares issuable upon conversion as of December 31, 2023 and (ii) $1.70
with  respect  to  all  shares  issuable  upon  conversion  in  excess  of  the  first  588,599  shares  issued  upon  conversion  as  of
December  31,  2023.  The  Company  also  has  the  ability  to  force  the  conversion  of  the  loan  into  shares  of  the  Company’s
common stock at the same conversion price, subject to certain conditions.

Annual principal and interest payments due, according to the agreement’s contractual terms, assuming no conversion is as
follows:

Year
2024
2025
Total

Principal

Interest

$

$

2,250,000
750,000
3,000,000

$

$

270,808
16,012
286,820

$

$

Total
2,520,808
766,012
3,286,820

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Note 6. Income Taxes

The income tax benefit consisted of the following for the years ended December 31, 2023 and 2022:

Federal
Foreign
State & Local
Income tax benefit

2023

2022

$

$

—
—
(1,767,803)
(1,767,803)

$

$

—
—
(1,154,935)
(1,154,935)

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

Net operating loss carry forwards
Orphan drug and research and development credit carry forwards
Equity based compensation
Intangibles
Capitalized research and development (Section 174)
Lease liability
Other
Total
Valuation allowance
Net deferred tax assets
Right of use asset
Total gross deferred tax liabilities
Net deferred tax assets

$

$

2023
27,522,000
8,921,000
246,000
1,409,000
2,311,000
66,000
(12,000)
40,463,000
(40,398,000)
65,000
(65,000)
(65,000)

$

— $

2022
27,252,000
8,837,000
285,000
1,696,000
1,832,000
96,000
—
39,998,000
(39,902,000)
96,000
(96,000)
(96,000)
—

The Company had gross NOLs at December 31, 2023 of approximately $123.0 million for federal tax purposes, approximately
$12.9 million for state tax purposes and approximately $3.7 million for foreign tax purposes. Federal losses generated in 2018
or  later  will  carry  forward  indefinitely.  In  addition,  the  Company  has  approximately  $8.9  million  of  various  tax  credits  which
credit the Company may be able to utilize its NOLs to reduce future federal and state income tax liabilities. However, these
NOLs are subject to various limitations under Internal Revenue Code (“IRC”) Section 382. IRC Section 382 limits the use of
NOLs  to  the  extent  there  has  been  an  ownership  change  of  more  than  50  percentage  points.  In  addition,  the  NOL
carryforwards  are  subject  to  examination  by  the  taxing  authority  and  could  be  adjusted  or  disallowed  due  to  such  exams.
Although  the  Company  has  not  undergone  an  IRC  Section  382  analysis,  it  is  likely  that  the  utilization  of  the  NOLs  may  be
substantially limited.

The Company and one or more of its subsidiaries files income tax returns in the U.S. federal jurisdiction, and various state
and local jurisdictions. During the years ended December 31, 2023 and 2022 in accordance with the State of New Jersey’s
Technology  Business  Tax  Certificate  Program,  which  allowed  certain  high  technology  and  biotechnology  companies  to  sell
unused  NOL  carryforwards  to  other  New  Jersey-based  corporate  taxpayers,  the  Company  sold  New  Jersey  NOL  carry
forwards,  resulting  in  the  recognition  of  $1,767,803  and  $1,154,935,  respectively,  of  income  tax  benefit,  net  of  transaction
costs. The Company sold its 2022 New Jersey NOLs and has recorded a receivable of $606,606 which is included in prepaid
expenses and other current assets on the accompanying consolidated balance sheet for the year ended December 31, 2023.
There can be no assurance as to the continuation or magnitude of this program in the future.

The Tax Cuts and Jobs Act of 2017 (“TCJA”) has modified the IRC 174 expenses related to research and development for
the  tax  years  beginning  after  December  31,  2021.  Under  the  TCJA,  the  Company  must  now  capitalize  the  expenditures
related  to  research  and  development  activities  and  amortize  over  five  years  for  U.S.  activities  and  15  years  for  non-U.S.
activities using a mid-year convention. Therefore, the capitalization of research and development costs in accordance with
IRC 174 resulted in a deferred tax asset of $2,310,677.

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Reconciliations  of  the  difference  between  income  tax  benefit  computed  at  the  federal  and  state  statutory  tax  rates  and  the
provision for income tax benefit for the years ended December 31, 2023 and 2022 were as follows:

Federal tax at statutory rate
State tax benefits, plus sale of NJ NOL, net of federal benefit
Foreign tax rate difference
Orphan drug and research and development credits
Permanent differences
Foreign NOL adjustments
Expiration of tax attributes
Change in valuation allowance

Income tax benefit

2023

2022

(21.0)%
(21.6) 
0.1  
(2.0) 
0.9  
0.7  
14.2  
6.3  
(22.4)%  

(21.0)%
(2.4)
0.2
(3.9)
3.1
0.4
9.1
6.8
(7.7)%

Entities  are  also  required  to  evaluate,  measure,  recognize  and  disclose  any  uncertain  income  tax  provisions  taken  on  their
income  tax  returns.  The  Company  has  analyzed  its  tax  positions  and  has  concluded  that  as  of  December  31,  2023,  there
were no uncertain positions. The Company’s U.S. federal and state net operating losses have occurred since its inception and
as  such,  tax  years  subject  to  potential  tax  examination  could  apply  from  2011,  the  earliest  year  with  a  net  operating  loss
carryover, because the utilization of net operating losses from prior years opens the relevant year to audit by the IRS and/or
state taxing authorities. Interest and penalties, if any, as they relate to income taxes assessed, are included in the income tax
provision.  The  Company  did  not  have  any  unrecognized  tax  benefits  and  has  not  accrued  any  interest  or  penalties  for  the
years ended December 31, 2023 and 2022.

Note 7. Shareholders’ Equity (Deficit)

Preferred Stock

The  Company  has  350,000  shares  of  preferred  stock  authorized,  of  which  50,000  were  designated  as  Series  D  preferred
stock during the year ended December 31, 2023.

Series D Preferred Stock

On December 21, 2022, the Board of Directors of the Company declared a dividend for the stockholders of record on January
3, 2023. The dividend consists of one one-thousandth of a share of Series D preferred stock, par value $0.001 per share, for
each  outstanding  share  of  the  Company's  common  stock.  The  Series  D  preferred  stock  has  the  following  rights  and
restrictions:

General;  Transferability  -  Series  D  preferred  stock  shares  will  be  in  book-entry  form  without  certificates.  Transfers  can  only
happen alongside common stock transfers, with 1/1,000th of a Series D preferred stock share transferred for each common
stock share transferred.

Voting Rights - Each Series D preferred stock share gives the holder 1,000,000 votes. If a shareholder owns a fraction of a
share, they will have a proportional number of votes.
Series D preferred stock and common stock shares only vote together on two specific matters:

1. Any plan to change the Company's Certificate of Incorporation for a reverse stock split.
2. Any plan to delay a stockholders' meeting to vote on a reverse stock split (the "Adjournment Proposal").

When  voting  on  the  reverse  stock  split  or  the  Adjournment  Proposal,  each  Series  D  preferred  stock  share  (or  fraction  of  a
share) will vote the same way as the common stock share it was issued from.

Dividend Rights - The holders of Series D preferred stock will not be entitled to receive dividends of any kind.

Liquidation  Preference  -  If  the  Company  undergoes  liquidation,  dissolution,  or  winding  up,  Series  D  preferred  stock  has
priority  over  common  stock  for  asset  distribution.  In  such  a  situation,  Series  D  preferred  stockholders  will  receive  a  cash
payment of $0.001 per share before any distribution is made to common stockholders.

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Table of Contents

Redemption - If Series D preferred stockholders do not attend or vote by proxy at a meeting for the reverse stock split and
Adjournment Proposal, their shares will be automatically redeemed by the Company. If any Series D preferred stock remains
after this redemption, it can be redeemed in one of two ways:

1. The Board decides to redeem the shares at a time and date of their choosing.
2. The shares will be automatically redeemed when the Company's stockholders approve the reverse stock split during

a meeting for this purpose.

When Series D preferred stock is redeemed, stockholders receive a cash payment based on the number of shares they own.
For every 100 whole shares redeemed, the stockholder will get $0.10 in cash.

The  Series  D  preferred  stock  shares  were  classified  as  mezzanine  equity  as  of  December  31,  2022  since  they  were  not
mandatorily  redeemable  but  were  redeemable  based  on  an  event  not  entirely  controlled  by  the  Company.  All  Series  D
preferred stock were redeemed in conjunction with the special meeting of the shareholders’ on February 8, 2023.

Common Stock

The following items represent transactions in the Company’s common stock for the year ended December 31, 2023:

● The Company issued a vendor 50,000 shares of fully vested common stock with a fair value based on a closing price

of $1.46 per share on April 27, 2023, the date of issuance.

● The Company sold 851,130 shares of common stock pursuant to the At Market Issuance Sales Agreement (“B. Riley

Sales Agreement”) with B. Riley Securities, Inc. (“B. Riley”) at a weighted average price of $3.63 per share.

● The  Company  issued  31,646  shares  of  fully  vested  common  stock  pursuant  to  an  exclusive  option  agreement  at
$1.58  per  share  on  May  2,  2023.  The  share  price  was  calculated  using  the  average  closing  price  of  the  common
stock for the ten days immediately preceding April 27, 2023, the effective date of the option agreement.

●  The Company sold 2,301,500 shares of common stock and 4,237,000 pre-funded warrants pursuant to the May 2023

public offering for $1.30 per share on May 9, 2023.

● The Company issued 2,023,000 shares of common stock pursuant to the exercise of pre-funded warrants associated

with the May 2023 public offering with an exercise price of $0.001 on May 9, 2023.

● The Company issued 938,000 shares of common stock pursuant to the exercise of pre-funded warrants associated

with the May 2023 public offering with an exercise price of $0.001 on May 10, 2023.

● The Company issued 338,000 shares of common stock pursuant to the exercise of pre-funded warrants associated

with the May 2023 public offering with an exercise price of $0.001 on May 22, 2023.

● The  Company  issued  400,000  shares  of  common  stock  pursuant  to  the  cashless  exercise  of  pre-funded  warrants

associated with the May 2023 public offering with an exercise price of $0.001 on June 8, 2023.

● The  Company  issued  536,384  shares  of  common  stock  pursuant  to  the  cashless  exercise  of  pre-funded  warrants

associated with the May 2023 public offering with an exercise price of $0.001 on September 6, 2023.

 The following items represent transactions in the Company’s common stock for the year ended December 31, 2022:

● The Company issued a  vendor  5,377  shares  of  fully  vested  common  stock  with  a  fair  value  of  $9.30  per  share  on

February 7, 2022.

● The Company issued a vendor 6,411 shares of fully vested common stock with a fair value of $7.80 per share on May

6, 2022.

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Table of Contents

● The Company issued a vendor 3,664 shares of fully vested common stock with a fair value of $13.65 per share on

August 5, 2022.

● The  Company  issued  a  vendor  1,667  shares  of  fully  vested  common  stock  with  a  fair  value  of  $7.20  per  share  on

October 4, 2022.

● The  Company  issued  a  vendor  5,129  shares  of  fully  vested  common  stock  with  a  fair  value  of  $9.75  per  share  on

November 7, 2022.

● The  Company  issued  8,542  shares  of  common  stock  pursuant  to  the  B.  Riley  Sales  Agreement  at  a  weighted

average price of $9.29 per share.

All issuances of the Company’s common stock for the years ended December 31, 2023 and 2022 described above, other than
shares issued to vendors or issued pursuant to the exclusive option agreement, were registered on a Registration Statement
on Form S-8 (SEC File No. 333-208515), a Registration Statement on Form S-1 (333-271049) and a Registration Statement
on Form S-3 (SEC File No. 333-239928). The certificates evidencing unregistered shares reflect a Securities Act of 1933, as
amended, restrictive legend.

The  issuances  of  the  Company’s  common  stock  to  vendors  and  pursuant  to  the  exclusive  option  agreement  as  described
above  were  exempt  under  Section  4(a)(2)  of  the  Securities  Act  of  1933,  as  amended.  The  recipients  are  knowledgeable,
sophisticated  and  experienced  in  making  investment  decisions  of  this  kind  and  received  adequate  information  about  the
Company  or  had  adequate  access  to  information  about  the  Company.  The  vendors  represented  to  the  Company  that  the
vendors are not “consultants” for purposes of Nasdaq Listing Rule 5635(c).

B. Riley At Market Issuance Sales Agreement

On August 11, 2017, the Company entered into the B. Riley Sales Agreement to sell shares of the Company’s common stock
from time to time, through an “at-the-market” equity offering program under which B. Riley acts as sales agent. Under the B.
Riley Sales Agreement, the Company set the parameters for the sale of shares, including the number of shares to be issued,
the time period during which sales may be requested to be made, limitation on the number of shares that may be sold in any
one trading day and any minimum price below which sales may not be made. The B. Riley Sales Agreement provided that B.
Riley was entitled to compensation for its services in an amount equal to 3% of the gross proceeds from the sale of shares
sold under the B. Riley Sale Agreement. The B. Riley Sales Agreement has expired.

Note 8. Stock Option Plans and Warrants to Purchase Common Stock

Stock Option Plans

The Amended and Restated 2005 Equity Incentive Plan (“2005 Plan”) was replaced by the 2015 Plan, which was approved in
June  2015.  No  securities  are  available  for  future  issuance  under  the  2005  Plan.  In  September  2022,  the  stockholders
approved  an  amendment  to  the  2015  Plan  to  increase  the  maximum  number  of  shares  of  common  stock  available  for
issuance under the plan by 4,000,000 shares. As of December 31, 2023, there are 5,096,447 shares currently available for
grants under the 2015 Plan. The plan is divided into four separate equity programs:

1)

2)

3)

4)

the Discretionary Option Grant Program, under which eligible persons may, at the discretion of the Plan Administrator,
be granted options to purchase shares of common stock,

the  Salary  Investment  Option  Grant  Program,  under  which  eligible  employees  may  elect  to  have  a  portion  of  their
base salary invested each year in options to purchase shares of common stock,

the  Automatic  Option  Grant  Program,  under  which  eligible  nonemployee  Board  members  will  automatically  receive
options at periodic intervals to purchase shares of common stock, and

the  Director  Fee  Option  Grant  Program,  under  which  non-employee  Board  members  may  elect  to  have  all,  or  any
portion, of their annual retainer fee otherwise payable in cash applied to a special option grant.

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Shares available for grant under the 2015 Plan were as follows:

Shares available for grant at January 1, 2023

Options granted
Options forfeited
Options exercised

Shares available for grant at December 31, 2023

Activity under the 2005 Plan and the 2015 Plan for the years ended December 31, 2023 and 2022

Balance outstanding at December 31, 2021

Granted
Forfeited
Cancelled
Exercised

Balance outstanding at December 31, 2022

Granted
Forfeited
Cancelled
Exercised

Balance outstanding at December 31, 2023

5,812,991
(731,544)
15,000
—
5,096,447

Weighted
Average
Exercise
Price

37.12
8.85
107.83
11.70
—
27.56
0.65
34.71
—
—
5.73

$

Options
140,996
55,730
(3,908)
(545)
—
192,273
731,544
(16,925)
—
—  
$

906,892

$

As of December 31, 2023, there were 306,588 options exercisable with a weighted average exercise price of $15.01 and a
weighted  average  remaining  contractual  term  of  7.99  years.  As  of  December  31,  2023,  there  were  906,892  options
outstanding  with  a  weighted  average  remaining  term  of  9.25  years.  Options  outstanding  as  of  December  31,  2023  had  no
intrinsic value.

The  Company  awarded  731,544  and  55,730  stock  options  during  the  years  ended  December  31,  2023  and  2022,
respectively, which had a weighted average grant date fair value per share of $0.50 and $5.57, respectively. The weighted-
average exercise price, by price range, for outstanding options to purchase common stock at December 31, 2023 was:

Price Range
$0.59 - $40.05
$111.00- $328.50

Total

Weighted
Average
Remaining
Contractual
     Life in Years     

9.31  
1.52  
9.25  

Outstanding
Options
899,794  
7,098  
906,892  

Exercisable
Options
299,490
7,098
306,588

The Company’s share-based compensation expense for the years ended December 31, 2023 and 2022 was recognized as
follows:

Share-based compensation
Research and development
General and administrative
Total

2023

2022

$

$

150,466
219,716
370,182

$

$

142,879
190,510
333,389

At December 31, 2023, the total compensation cost for stock options not yet recognized was approximately $421,000 and will
be expensed over the next three years.

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Warrants to Purchase Common Stock

Warrant activity for the years ended December 31, 2023 and 2022 was as follows:

Balance at December 31, 2021

Granted
Exercised
Expired

Balance at December 31, 2022

Granted
Exercised
Expired

Balance at December 31, 2023

The remaining life, by grant date, for outstanding warrants at December 31, 2023 was:

Warrants

221,872

$
—  
—  

(221,205)
667
10,775,073
(4,237,000)
(667)
6,538,073

$

$

Weighted
Average
Exercise
Price

33.79
—
—
33.81
29.25
0.91
0.001
29.25
1.50

Grant Date
May 09, 2023

Note 9. Concentrations

$

Exercise
Price

     Remaining
Contractual

Outstanding

Exercisable

     Life in Years      Warrants
4.36  

6,538,073  

1.50  

     Warrants

6,538,073

At December 31, 2023 and 2022, the Company had deposits in major financial institutions that exceeded the amount under
protection by the Securities Investor Protection Corporation (“SIPC”) and the Federal Deposit Insurance Corporation (“FDIC”).
Currently, the Company is covered up to $250,000 by the SIPC and FDIC and at times maintains cash balances in excess of
the SIPC and FDIC coverages.

Note 10. Commitments and Contingencies

The  Company  has  commitments  of  approximately  $230,000  as  of  December  31,  2023  over  the  next  five  years  for  several
licensing  agreements  with  partners  and  universities.  Additionally,  the  Company  has  collaboration  and  license  agreements,
which  upon  clinical  or  commercialization  success,  may  require  the  payment  of  milestones  of  up  to  approximately  $13.2
million, royalties on net sales of covered products ranging from 2% to 3%, sub-license income royalties on covered products
up to 15% and sub-license global net sales royalties on covered products ranging from 1.5% to 2.5%, if and when achieved.
However, there can be no assurance that clinical or commercialization success will occur.

The Company currently leases approximately 6,200 square feet of office space at 29 Emmons Drive, Suite B-10 in Princeton,
New  Jersey.  This  office  space  currently  serves  as  the  Company’s  corporate  headquarters,  and  both  of  the  Company’s
business  segments  (Specialized  BioTherapeutics  and  Public  Health  Solutions),  operate  from  this  space.  Pursuant  to  an
amendment  on  June  21,  2022,  the  lease  has  been  extended  from  November  2022  to  October  2025.  The  current  rent  is
approximately $11,367 per month and will remain so through October 2024. The rent for the lease period starting November
2024 is approximately $11,625 per month.

On September 3, 2014, the Company entered into an asset purchase agreement with Hy Biopharma, Inc. (“Hy Biopharma”)
pursuant  to  which  the  Company  acquired  certain  intangible  assets,  properties  and  rights  of  Hy  Biopharma  related  to  the
development  of  Hy  BioPharma’s  synthetic  hypericin  product.  As  consideration  for  the  assets  acquired,  the  Company  paid
$275,000 in cash and issued 12,328 shares of common stock with a fair value based on the Company’s stock price on the
date of grant of $3.75 million. These amounts were charged to research and development expense during the third quarter of
2014 as the assets will be used in the Company’s research and development activities and do not have alternative future use
pursuant  to  generally  accepted  accounting  principles  in  the  U.S.  In  March  2020,  the  Company  issued  130,413  fully  vested
shares  of  common  stock  to  Hy  Biopharma  as  payment  for  achieving  a  milestone:  the  Company  determining  the  Phase  3
clinical trial of HyBryte™ to be successful in the treatment of CTCL. The number of shares of common stock issued

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to Hy Biopharma was calculated using an effective price of $38.40 per share, based upon a formula set forth in the purchase
agreement.

Provided the sole remaining future success-oriented milestone of FDA approval is attained, the Company will be required to
make an additional payment of $5 million, if and when achieved. Such payment will be payable in restricted securities of the
Company  provided  such  number  of  shares  does  not  exceed  19.9%  ownership  of  the  Company’s  outstanding  stock.  As  of
December 31, 2023, no other milestone or royalty payments have been paid or accrued.

In January 2020, the Company’s Board of Directors authorized the amendment of Dr. Schaber’s employment agreement to
increase the number of shares of the Company’s common stock from 334 to 33,334 issuable to Dr. Schaber immediately prior
to  the  completion  of  a  transaction,  or  series  or  a  combination  of  related  transactions,  negotiated  by  its  Board  of  Directors
whereby, directly or indirectly, a majority of its capital stock or a majority of its assets are transferred from the Company and/or
its stockholders to a third party.

As a result of the above agreements, the Company has future contractual obligations over the next five years as follows:

Year
2024
2025
2026
2027
2028
Total

Contingencies

     Research and      Property and     
     Other Leases     
     Development

Total

$

$

46,000
46,000
46,000
46,000
46,000
230,000

$

$

136,917
116,250
—
—
—
253,167

$

$

182,917
162,250
46,000
46,000
46,000
483,167

The Company follows subtopic 450-20 of the FASB Accounting Standards Codification to report accounting for contingencies.
Certain conditions may exist as of the date the financial statements are issued, which may result in a loss to the Company but
which will only be resolved when one or more future events occur or fail to occur. The Company assesses such contingent
liabilities,  and  such  assessment  inherently  involves  an  exercise  of  judgment.  A  liability  is  only  recorded  if  management
determines that it is both probable and reasonably estimable.

COVID-19

Based on the current outbreak of SARS-CoV-2, the pathogen responsible for COVID-19, which has already had an impact on
financial markets, there could be additional repercussions to the Company’s operating business, including but not limited to,
the  sourcing  of  materials  for  product  candidates,  manufacture  of  supplies  for  preclinical  and/or  clinical  studies,  delays  in
clinical operations, which may include the availability or the continued availability of patients for trials due to such things as
quarantines, conduct of patient monitoring and clinical trial data retrieval at investigational study sites.

COVID-19  affected  the  Company’s  operations  but  did  not  have  a  material  impact  on  the  Company’s  business,  operating
results, financial condition or cash flows as of and for the year ended December 31, 2023.

The  future  impact  of  the  outbreak  is  highly  uncertain  and  cannot  be  predicted,  and  the  Company  cannot  provide  any
assurance that the outbreak will not have a material adverse impact on the Company’s operations or future results or filings
with  regulatory  health  authorities.  The  extent  of  the  impact  to  the  Company,  if  any,  will  depend  on  future  developments,
including actions taken to contain the coronavirus.

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Note 11. Operating Segments

The  Company  maintains  two  active  operating  segments:  Specialized  BioTherapeutics  and  Public  Health  Solutions.  Each
segment includes an element of overhead costs specifically associated with its operations, with its corporate shared services
group responsible for support functions generic to both operating segments.

Revenues
Specialized BioTherapeutics
Public Health Solutions

Total

Income (loss) from Operations
Specialized BioTherapeutics
Public Health Solutions
Corporate

Total

Amortization and Depreciation Expense
Specialized BioTherapeutics
Public Health Solutions
Corporate

Total

Other (Expense) Income, Net
Specialized BioTherapeutics
Corporate

Total

Share-Based Compensation
Specialized BioTherapeutics
Public Health Solutions
Corporate

Total

Identifiable Assets
Specialized BioTherapeutics
Public Health Solutions
Corporate

Total

Note 12. Subsequent Event

Convertible Debt Financing Agreement

$

$

$

$

$

$

$

$

$

$

For the Years Ended
December 31, 

2023

2022

395,124
444,235
839,359

(2,812,303)
(36,531)
(4,849,106)
(7,697,940)

3,932
655
1,967
6,554

25,267
(235,860)
(210,593)

145,683
4,782
219,717
370,182

$

$

$

$

$

$

$

$

$

$

31,929
916,982
948,911

(7,614,988)
26,612
(6,650,528)
(14,238,904)

10,087
1,681
12,794
24,562

102,320
(816,690)
(714,370)

138,075
4,804
190,510
333,389

As of December 31, 

2023

2022

$

$

272,099
3,976
9,521,251
9,797,326

$

$

103,742
121,290
14,054,685
14,279,717

On April 19, 2023, the Company entered into an amendment to the convertible debt financing agreement with Pontifax (See
Note 5). The amendment reduced the conversion price with respect to the remaining principal amount outstanding under the
agreement. The conversion price was amended to be (i) 90% of the closing price of our common stock on the day before the
delivery of the conversion notice with respect to the first 588,599 shares of our common stock issuable upon conversion and
(ii) $1.70 with respect to all shares of our common stock issuable upon conversion in excess of the first 588,599 shares so
issued.

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Conversion of Promissory Notes

On January 3, 2024, the Company issued an aggregate of 146,199 shares of common stock to two lenders upon conversion
of approximately $100,000 of principal under promissory notes at a conversion price of $0.68 per share.

Remaining Convertible Debt

As of March 8, 2024, $2,900,585 of principal and $45,840 of accrued interest remain outstanding under the agreement. The
conversion price for the remaining principal amount as of March 8, 2024 is (i) 90% of the closing price of our common stock
on  the  day  before  the  delivery  of  the  conversion  notice  with  respect  to  the  first  442,400  shares  of  common  stock  issuable
upon conversion and (ii) $1.70 with respect to all shares issuable upon conversion in excess of the first 442,400 shares so
issued.

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of
Soligenix, Inc.
Princeton, New Jersey

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheet of Soligenix, Inc. (the “Company”) as of December 31, 2023, and
the related consolidated statements of operations, stockholders’ equity (deficit) and cash flows the year 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 the results of its operations and its cash
flows for the year ended December 31, 2023, in conformity with accounting principles generally accepted in the United States of
America.

Substantial Doubt about the Company’s Ability to Continue as a Going Concern

The  accompanying  financial  statements  have  been  prepared  assuming  the  Company  will  continue  as  a  going  concern.  As
discussed in Note 1 to the financial statements, the Company has recurring losses and negative cash flows from operations
that  raise  substantial  doubt  about  its  ability  to  continue  as  a  going  concern.  Management’s  evaluations  of  the  events  and
conditions and management’s plans regarding those matters are also described in Note 1. The financial statements do not
include any adjustments that might result from the outcome of this uncertainty.

Prior Period Financial Statements

The financial statements of the Company as of December 31, 2022 were audited by other auditors whose report dated March
31, 2023 expressed an unqualified opinion on those statements.

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  audit.  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 audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform
the audit to obtain reasonable assurance about whether 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  audit,  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 audit 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  audit  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 audit provides 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
were  communicated  or  required  to  be  communicated  to  the  audit  committee  and  that:  (1)  relate  to  accounts  or  disclosures
that  are  material  to  the  financial  statements  and  (2)  involved  our  especially  challenging,  subjective,  or  complex  judgments.
The communication of a critical audit matter does not alter in any way our opinion on the financial statements,

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taken as a whole, and we are not, by communicating the critical audit matter below, providing separate opinions on the critical
audit matter or on the accounts or disclosures to which it relates.

Critical Audit Matter Description

As disclosed in Note 5 to the financial statements, on April 19, 2023, the Company amended the convertible debt financing
agreement dated December 15, 2020 with Pontifax. The Company has elected the fair value option and has accounted for the
Pontifax note at fair value.

There is no current observable market for the Pontifax note and, as such, the Company determined the fair value using the
Monte  Carlo  pricing  model.  As  a  result,  a  high  degree  of  auditor  judgment  and  effort  was  required  in  performing  audit
procedures to evaluate the valuation technique and the significant unobservable inputs.

How the Critical Audit Matter was Addressed in the Audit

Our principal audit procedures performed to address this critical audit matter included the following:

● We  obtained  an  understanding  and  evaluated  the  Company’s  election  of  accounting  policy  related  to  the  Pontifax

note.

● We obtained an understanding and evaluated the Company’s process and methodology used in the valuation of the

Pontifax note.

● We  reviewed  the  fair  value  model  used,  significant  assumptions,  and  underlying  data  used  in  the  model  and

evaluated whether the estimates and assumptions were consistent with audit evidence obtained.

● We evaluated the disclosures surrounding the fair value election with respect to the Pontifax note and ensured that

these were disclosed in accordance with the relevant accounting guidance.

/s/ Cherry Bekaert LLP

We have served as the Company’s auditor since 2023.

Tampa, Florida
March 15, 2024

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Table of Contents

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of
Soligenix, Inc.

Opinion on the Financial Statements

We  have  audited  the  accompanying  consolidated  balance  sheet  of  Soligenix,  Inc  and  Subsidiaries  (the  “Company”)  as  of
December  31,  2022,  and  the  related  consolidated  statements  of  operations,  comprehensive  loss,  changes  in  mezzanine
equity and shareholders’ equity (deficit), and cash flows for the year then ended, and the related notes (collectively referred to
as the “financial statements”).  In our opinion, the financial statements present fairly, in all material respects, the consolidated
financial position of the Company as of December 31, 2022, and the consolidated results of their operations and their cash
flows for the year then ended, in conformity with accounting principles generally accepted in the United States of America.

Going Concern

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

Basis for Opinion

These financial statements are the responsibility of the Company’s management.  Our responsibility is to express an opinion
on  the  Company’s  financial  statements  based  on  our  audit.    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 audit in accordance with the standards of the PCAOB.  Those standards require that we plan and perform
the audit to obtain reasonable assurance about whether 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  audit,  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 audit 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  audit  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 audit provides a reasonable basis for our opinion.

/s/ EisnerAmper LLP

We have served as the Company’s auditor from 2010 to 2022.

EISNERAMPER LLP
New York, New York
March 31, 2023

F-28

SOLIGENIX, INC.

DESCRIPTION OF SECURITIES

EXHIBIT 4.1

The following description of the terms of our securities is not complete and is qualified in its entirety by reference to
our Certificate of Incorporation, as amended (the “Certificate of Incorporation”) and our Bylaws, as amended (the “Bylaws”),
both of which are filed as exhibits to our Annual Reports on Form 10-K.

Under  our  Certificate  of  Incorporation  and  Bylaws,  we  are  authorized  to  issue  75,350,000  shares  of  capital  stock,
consisting  of  75,000,000  shares  of  common  stock,  par  value  $0.001  per  share,  230,000  shares  of  undesignated  preferred
stock (none of which are currently outstanding), 10,000 shares of Series B Convertible Preferred Stock, par value $0.05 per
share (none of which are currently outstanding), 10,000 shares of Series C Convertible Preferred Stock, par value $0.05 per
share  (none  of  which  are  currently  outstanding),  and  100,000  shares  of  Series  A  Junior  Participating  Preferred  Stock,  par
value $0.001 per share (none of which are currently outstanding).

All outstanding shares of common stock are validly issued, fully paid, and nonassessable.

Common Stock

Voting Rights

Holders of our common stock are entitled to one vote for each share held in the election of directors and in all other
matters to be voted on by stockholders. There is no cumulative voting in the election of directors. The affirmative vote of the
holders of a plurality of the shares of common stock represented at an annual meeting is required to elect each director.

Dividends and Liquidation Rights

Holders  of  common  stock  are  entitled  to  receive  dividends  as  may  be  declared  from  time  to  time  by  our  Board  of
Directors out of funds legally available therefor. In the event of liquidation, dissolution or winding up of the Company, holders
of common stock are to share in all assets remaining after the payment of liabilities.

Conversion, Redemption and Other Rights

Holders  of  common  stock  have  no  pre-emptive  or  conversion  rights  and  are  not  subject  to  further  calls  or
assessments. There are no redemption or sinking fund provisions applicable to the common stock. The rights of the holders
of the common stock are subject to any rights that may be fixed for holders of preferred stock.

Preferred Stock

Our Certificate of Incorporation authorizes the issuance of 230,000 shares of undesignated preferred stock, 10,000
shares of Series B Convertible Preferred Stock, par value $0.05 per share (the “Series B Preferred Stock”), 10,000 shares of
Series  C  Convertible  Preferred  Stock,  par  value  $0.05  per  share  (the  “Series  C  Preferred  Stock”),  and  100,000  shares  of
Series  A  Junior  Participating  Preferred  Stock,  par  value  $0.001  per  share  (the  “Junior  Preferred  Stock”).  Our  Board  of
Directors  is  empowered,  without  stockholder  approval,  to  designate  and  issue  additional  series  of  preferred  stock  with
dividend, liquidation, conversion, voting or other rights, including the right to issue convertible securities with no limitations on
conversion, which could adversely affect the voting power or other rights of the holders of our common stock, substantially
dilute a common stockholder’s interest and depress the price of our common stock.

No  shares  of  the  Series  B  Preferred  Stock,  the  Series  C  Preferred  Stock  or  the  Junior  Preferred  Stock  are
outstanding.  Due  to  the  terms  of  the  Series  C  Preferred  Stock,  no  additional  shares  of  Series  C  Preferred  Stock  can  be
issued.

Series B Preferred Stock

Our Certificate of Incorporation authorizes the issuance of 10,000 shares of Series B Preferred Stock, none of which

are outstanding and 6,411 of which have been converted to common stock and therefore are not reissuable.

2

Voting Rights

Each holder of Series B Preferred Stock is entitled to the number of votes equal to the number of whole shares of
common stock into which the shares of Series Preferred Stock held by such holder is then convertible (as adjusted from time
to time pursuant to our Certificate of Incorporation) with respect to any and all matters presented to the stockholders for their
action  or  consideration.  Except  as  provided  by  law,  holders  of  Series  B  Preferred  Stock  vote  together  with  the  holders  of
common stock as a single class.

Dividends and Liquidation Rights

The holders of the Series B Preferred Stock are entitled to a dividend of 8% per annum, payable annually in shares of
Series B Preferred Stock. In addition, when and if our Board of Directors shall declare a dividend payable with respect to the
then outstanding shares of common stock, the holders of the Series B Preferred Stock are entitled to the amount of dividends
per share as would be payable on the largest number of whole shares of common stock into which each share of Series B
Preferred Stock could then be converted.

In  the  event  of  liquidation,  dissolution  or  winding  up  of  the  Company,  the  holders  of  Series  B  Preferred  Stock  then
outstanding will be entitled to be paid an amount equal to $1,000 per share (subject to adjustment in the event of any stock
dividend,  stock  split,  combination  or  other  similar  recapitalization  affecting  such  shares  pursuant  to  our  Certificate  of
Incorporation), plus any dividends declared but unpaid thereon before any payment is made to the holders of common stock,
Junior Preferred Stock or any other class or series of stock ranking on liquidation junior to the Series B Preferred Stock. After
the holders of the Series B Preferred Stock have been paid in full, the remaining assets of the Company will be distributed to
the holders of Junior Preferred Stock and common stock, subject to the preferences of the Junior Preferred Stock.

Conversion, Redemption and Other Rights

Each  share  of  Series  B  Preferred  Stock  is  convertible  into  1.333  shares  of  common  stock.  The  conversion  ratio  is
subject to an adjustment upon the issuance of additional shares of common stock for a price below the closing price of the
common stock and equitable adjustment for stock splits, dividends, combinations, reorganizations and similar events.

Subject  to  certain  conditions,  after  the  second  anniversary  of  the  issuance  of  the  Series  B  Preferred  Stock,  the
Company  will  have  the  right,  but  not  the  obligation,  to  redeem  the  then-outstanding  shares  of  Series  B  Preferred  Stock  for
cash in an amount calculated pursuant to the terms of our Certificate of Incorporation.

Junior Preferred Stock

Voting Rights

The holders of the Junior Preferred Stock will have 10,000 votes per share of Junior Preferred Stock on all matters

submitted to a vote of our stockholders, including the election of directors.

Dividends and Liquidation Rights

If  our  Board  of  Directors  declares  or  pays  dividends  on  common  stock,  the  holders  of  the  Junior  Preferred  Stock
would be entitled to receive a per share dividend payment of 10,000 times the dividend declared per share of common stock.
In the event we make a distribution on the common stock, the holders of the Junior Preferred Stock will be entitled to a per
share distribution, in like kind, of 10,000 times such distribution made per share of common stock. In the event of any merger,
consolidation or other transaction in which shares of common stock are exchanged, each share of Junior Preferred Stock will
be entitled to receive 10,000 times the amount received per share of common stock. These rights are protected by customary
anti-dilution provisions.

Upon any liquidation, dissolution or winding up, no distribution may be made to the holders of shares of stock ranking
junior to the Junior Preferred Stock unless the holders of the Junior Preferred Stock have received the greater of (i) $37.00
per one one-thousandth share plus an amount equal to accrued and unpaid dividends and distributions thereon, and (ii) an
amount  equal  to  10,000  times  the  aggregate  amount  to  be  distributed  per  share  to  holders  of  common  stock.  Further,  no
distribution may be made to the holders of stock ranking on a parity upon liquidation, dissolution or winding up with the Junior
Preferred Stock, unless distributions are made ratably on the Junior Preferred Stock and all other shares of

3

such parity stock in proportion to the total amounts to which the holders of the Junior Preferred Stock are entitled above and
to which the holders of such parity shares are entitled.

Anti-Takeover Provisions

Provisions  in  our  Certificate  of  Incorporation  and  Bylaws  may  discourage  certain  types  of  transactions  involving  an

actual or potential change of control of our company which might be beneficial to us or our security holders.

As noted above, our Certificate of Incorporation permits our Board of Directors to issue shares of any class or series
of preferred stock in the future without stockholder approval and upon such terms as our Board of Directors may determine.
The rights of the holders of common stock will be subject to, and may be adversely affected by, the rights of the holders of any
class or series of preferred stock that may be issued in the future.

Our  Bylaws  generally  provide  that  any  board  vacancy,  including  a  vacancy  resulting  from  an  increase  in  the

authorized number of directors, may be filled by a majority of the directors, even if less than a quorum.

Additionally,  our  Bylaws  provide  that  stockholders  must  provide  timely  notice  in  writing  to  bring  business  before  an
annual  meeting  of  shareholders  or  to  nominate  candidates  for  election  as  directors  at  an  annual  meeting  of  shareholders.
Notice for an annual meeting is timely if our secretary receives the written notice not less than 45 days and no more than 75
days prior to the anniversary of the date that we mailed proxy materials for the preceding year’s annual meeting. However, if
the date of the annual meeting is advanced more than thirty (30) days prior to, or delayed by more than thirty (30) days after,
the anniversary of the preceding year’s annual meeting, notice by the stockholder to be timely must be delivered not later than
the close of business on the later of (i) the 90th day prior to such annual meeting or (ii) the 10th day following the day on which
public  announcement  of  the  date  of  such  annual  meeting  is  first  made.  Our  Bylaws  also  specify  the  form  and  content  of  a
shareholder’s  notice.  These  provisions  may  prevent  shareholders  from  bringing  matters  before  an  annual  meeting  of
shareholders or from making nominations for directors at an annual meeting of shareholders.

Delaware Anti-Takeover Statute

We  are  subject  to  the  provisions  of  Section  203  of  the  Delaware  General  Corporation  Law  (the  “DGCL”)  regulating
corporate  takeovers.  In  general,  Section  203  prohibits  a  publicly  held  Delaware  corporation  from  engaging,  under  certain
circumstances,  in  a  business  combination  with  an  interested  stockholder  for  a  period  of  three  years  following  the  date  the
person became an interested stockholder unless:

●

●

●

prior to the date of the transaction, our Board of Directors approved either the business combination or the
transaction which resulted in the stockholder becoming an interested stockholder;

upon completion of the transaction that resulted in the stockholder becoming an interested stockholder, the
interested stockholder owned at least 85% of the voting stock of the corporation outstanding at the time the
transaction commenced, calculated as provided under Section 203; or

at  or  subsequent  to  the  date  of  the  transaction,  the  business  combination  is  approved  by  our  Board  of
Directors and authorized at an annual or special meeting of stockholders, and not by written consent, by the
affirmative  vote  of  at  least  two-thirds  of  the  outstanding  voting  stock  which  is  not  owned  by  the  interested
stockholder.

Generally, a business combination includes a merger, asset or stock sale, or other transaction resulting in a financial
benefit to the interested stockholder. An interested stockholder is a person who, together with affiliates and associates, owns
or,  within  three  years  prior  to  the  determination  of  interested  stockholder  status,  did  own  15%  or  more  of  a  corporation’s
outstanding voting stock. We expect the existence of this provision to have an anti-takeover effect with respect to transactions
our Board of Directors does not approve in advance. We also anticipate that Section 203 may also discourage attempts that
might result in a premium over the market price for the shares of common stock held by stockholders.

Forum Selection Provisions

As permitted by the DGCL, our Bylaws require, to the fullest extent permitted by law, unless we consent in writing to
the  selection  of  an  alternative  forum,  that  the  Court  of  Chancery  of  the  State  of  Delaware,  shall  be  the  sole  and  exclusive
forum for (i) any derivative action or proceeding brought on behalf of the company, (ii) any action asserting a claim for breach
of a fiduciary duty owed by any director, officer, other employee or stockholder of the company to the company or

4

the  our  stockholders,  (iii)  any  action  asserting  a  claim  arising  pursuant  to  any  provision  of  the  DGCL,  our  Certificate  of
Incorporation or our Bylaws or (iv) any action asserting a claim governed by the internal affairs doctrine.

Further,  our  Bylaws  provided  that,  unless  we  consent  in  writing  to  the  selection  of  an  alternative  forum,  the  federal
district courts of the United States of America shall, to the fullest extent permitted by law, be the sole and exclusive forum for
the resolution of any complaint asserting a cause of action arising under the Securities Act.

Exclusions or Limitations to Forum Selection Provisions

Section  27  of  the  Exchange  Act  creates  exclusive  federal  jurisdiction  over  all  suits  brought  to  enforce  any  duty  or
liability created by the Exchange Act or the rules and regulations thereunder. Accordingly, the exclusive forum provisions in
our Bylaws do not apply to claims arising under the Exchange Act. The forum selection provisions, however, are intended to
apply  to  the  fullest  extent  permitted  by  law,  including  to  actions  or  claims  arising  under  the  Securities  Act.  However,  it  is
possible that a court could find our forum selection provisions to be inapplicable or unenforceable with respect to actions or
claims arising under the Securities Act. Even if a court accepts that our forum selection provisions apply to actions or claims
arising under the Securities Act, our stockholders shall not be deemed to have waived compliance with the federal securities
laws and the rules and regulations thereunder.

Transfer Agent

The  transfer  agent  and  registrar  for  our  common  stock  is  Equiniti  Trust  Company,  LLC.  Its  address  is  6201  15th

Avenue, Brooklyn, NY 11219 and its telephone number is (718) 921-8200.

Listing

Our common stock is listed on The Nasdaq Capital Market under the symbol “SNGX.”

5

Exhibit 19.1

ADMINISTRATIVE POLICY

INSIDER TRADING

ADM 1100

REVISION DATE: May 18, 2021

I. PURPOSE

The  following  is  the  insider  trading  policy  of  Soligenix,  Inc.  and  Subsidiaries  (the  "Company")  and  outlines  the  procedures  that  all
Company personnel must follow.  This policy and these procedures arise from the Company’s responsibilities as a publicly-traded entity.
 Failure to comply with these procedures could result in a serious violation of the securities laws by the employee and/or the Company and
can involve both civil and criminal penalties.  It is important that every Employee reviews this policy carefully.  

II. APPLICABILITY OF POLICY

This  policy  applies  to  all  transactions  in  Company  stock  by  "insiders."   As  a  rule  of  thumb  insiders  are  (1)  members  of  the  Board  of
Directors and officers of the Company, (2) any employee of the Company and its subsidiaries, and (3) any consultant, representative, or
independent contractor ("Representative") who knows material information regarding the Company that has not been fully disclosed to the
public.    This  policy  also  applies  to  the  immediate  families  (defined  as  direct  family  members  living  in  the  same  household)  of  such
insiders.  A person can be an insider for a limited time with respect to certain material information even though he or she is not an officer
or director.  For example, a secretary who knows that a large contract has just been received or that an acquisition is about to occur may be
an insider with respect to that information until the news has been fully disclosed to the public.

Definition of “Insider”

An "insider" is any person who possesses, or has access to, material information concerning the Company that has not been fully disclosed
to the public (see below for a definition of "material information").  Insiders may be subject to criminal prosecution and/or civil liability
for trading (purchase or sale) in Company stock when they know material information concerning the Company that has not been fully
disclosed to the public.  

Persons found liable for insider trading face penalties of up to three times the profit gained or loss avoided, a criminal fine of up to $1
million, and up to 10 years in jail.  The Company (and its Officers and Directors) could face penalties, the greater of $1 million or three
times the profit gained or loss avoided, as a result of the Employee's violation, additional criminal monetary penalties and up to ten years
in jail.   Finally, in addition to the potential criminal and civil liabilities mentioned above, in certain circumstances the Company may be
able to recover all profits made by an insider, plus collect other damages.

Without regard to the penalties that may be imposed by others, willful violation of this policy constitutes grounds for dismissal from the
Board of Directors, termination of employment or, with respect to representatives, termination of the contract.  

Insider  trading  proscriptions  are  not  limited  to  trading  by  the  insider  alone;  it  is  also  illegal  to  advise  others  to  trade  on  the  basis  of
undisclosed material information.  Liability in such cases can extend both to the "tippee"--the person to whom the insider disclosed inside
information--and to the "tipper," the insider himself.

Finally, insider trading can cause a substantial loss of confidence in the Company and its stock on the part of the public and the securities
markets.  This could obviously have an adverse impact on Company and its stockholders.

Definition of “Full Disclosure”

Full  disclosure  to  the  public  generally  means  issuing  a  press  release  through  a  reputable  and  national  wire  service.    A  speech  to  an
audience, a TV or radio appearance, or an article in an obscure magazine does not qualify as full disclosure.  Full disclosure means that

the  securities  markets  have  had  the  opportunity  to  digest  the  news.    Generally,  a  full  trading  day  following  disclosure  is  regarded  as
sufficient for dissemination and interpretation of material information.

Definition of “Material Information”

It  is  not  possible  to  define  all  categories  of  material  information.      In  general,  information  should  be  regarded  as  material  if  there  is  a
likelihood that it would be considered important by an investor in making a decision regarding the purchase or sale of Company stock.
 Although  it  may  be  difficult  under  this  standard  to  determine  whether  certain  information  is  material,  there  are  various  categories  of
information that would almost always be regarded as material.  Examples of such information are:

Clinical trial results
New government grants
Regulatory (FDA or EMEA) actions and correspondence
Resignation of key personnel
Receipt, cancellation or deferral of significant purchase orders
New project or product announcements of a significant nature

1. Major corporate partnering transactions or proposed acquisitions or divestitures 
2.
3.
4.
5.
6.
7.
8. Material pricing changes
9.
10. Planned stock splits
11. New equity or debt offerings
12. Significant litigation exposure
13. Any other factors which would cause the Company's financial results to be substantially different from analyst estimates
14. Financial results

Proposed commencement or changes in dividends

If any insider has questions as to the materiality of information, he or she should contact the CFO of the Company for clarification.  If the
CFO is unavailable, they should contact the CEO.

Further, any officer, director or employee who believes he or she would be regarded as an insider who is contemplating a transaction in
Company stock must contact the principal financial officer of the Company prior to executing the transaction to determine if he or she may
properly proceed.  Officers and directors should be particularly careful, since avoiding the appearance of engag ing in stock transactions on
the basis of material undisclosed information can be as important as avoiding a transaction actually based on such information.  

III. ALMOST NO EXCEPTIONS

There are almost no exceptions to the prohibition against insider trading.  For example, it does not matter that the transactions in question
may have been planned or committed to before the insider came into possession of the undisclosed material information, regardless of the
economic loss that the person may believe he or she might suffer as a consequence of not trading.

As noted above, this policy applies to the immediate families of insiders.  Although immediate family is narrowly defined, an employee
should be especially careful with respect to family members or to unrelated persons living in the same household.

Notwithstanding  the  restrictions  and  prohibitions  on  trading  in  the  Company’s  securities  set  forth  in  this  Policy,  persons  subject  to  this
Policy are permitted to effect transactions in the Company’s securities pursuant to approved trading plans established under Rule 10b5-1
under the Securities Exchange Act of 1934, including transactions during Black-Out Periods.  Rule 10b5-1 requires that these transactions
be made pursuant to a plan that was established while the person was not in possession of material nonpublic information.  In order to
comply with this Policy, the CFO must review and approve any such trading plan prior to its effectiveness pursuant to the same time frame
and notification requirements as required for the pre-clearance of trades.  Insiders seeking to establish a trading plan should contact the
Company’s CFO.

Finally, remember that there are no limits on the size of a transaction that will trigger insider trading liability; relatively small trades have
in the past occasioned SEC investigations and lawsuits.

IV. SPECIFIC REQUIREMENTS

A. Prior to disclosure to any third party, any officer, director or employee who is aware of any material information concerning
Company (see "Definition of Material Information" above) that has not been disclosed to the public should report the intention to disclose
such information promptly to the CEO of the Company and obtain approval to do so.

B. Employees, officers and directors may not engage in a transaction (purchase or sale) of Company stock at any time between
the date on which any non-public material information becomes known to the individual and the close of business on the second business
day after such information is publicly disclosed.  

C. Insiders should contact the CFO prior to engaging in a transaction, to determine if there is any non-public material information
at that time.  If the CFO is unavailable, contact the CEO.  The CFO or CEO who was contacted should confirm the contact in writing via
memo or email with a copy to the insider’s personnel file.

D. No insider may engage in transactions of a speculative nature at any time, including, but not limited to, puts and sell or limit
orders,  although  placing  of  call  options  while  not  in  possession  of  material  non-public  information  is  not  prohibited.   All  insiders  are
prohibited  from  short-selling  Company  Common  Stock  or  engaging  in  transactions  involving  Company-based  derivative  securities.
 "Derivative Securities" are options, warrants, stock appreciation rights or similar rights whose value is derived from the value of an equity
security, such as Company Common Stock.  This prohibition includes, but is not limited to, trading in Company-based option contracts
(for  example,  buying  and/or  writing  puts  and  calls,  transacting  in  straddles  and  the  like).    However,  as  indicated  below,  holding  and
exercising options or other derivative securities granted under Company's employee stock option or equity incentive plans is not prohibited
by this policy, nor is trading in Company's convertible debentures.

E.   The only exceptions to the policy are set forth below.  It does not matter that the "insider" may have decided to engage in a
transaction before learning of the undis closed material information or that delaying the transaction might result in economic loss.  It is also
irrelevant that publicly disclosed information about the Company might, even aside from the undisclosed material information, provide a
sub stantial basis for engaging in the transaction.   One simply cannot trade in Company stock while in possession of undis closed material
information about Company.  The only excep tions to the policy are as follows:

(a)  Exercise  of  a  stock  option  under  the  Company  Stock  Option  Plan.    Note  that  this  exception  does  not  include  a

subsequent sale of the shares acquired pursuant to the exercise of the option under the Stock Option Plan.

(b) Bonafide gifts of securities are not deemed to be transactions for the purposes of this policy.  Whether a gift is truly
bonafide will depend on the circumstances surrounding each gift.  The more unrelated the donee is to the donor, the more likely the gift
would be considered "bonafide" and not a "transaction".  For example, gifts to charities, churches and service organizations would clearly
not be "transactions".  On the other hand, gifts to dependent children followed by a sale of the "gift" securities in close proximity to the
time of the gift may imply some economic benefit to the donor and, therefore, make the gift non-bonafide.

(c) Any transaction specifically approved in writing in advance by the CFO or CEO of the Company.

V. TRANSACTIONS BY OFFICERS AND DIRECTORS

The following procedures must be followed by Officers and Directors with respect to any purchase or sale of Company securities:

(a) Despite the above provisions, there may be times when there exists a corporate basis for requesting that each Officer
or Director refrain from trading in the Company's securities even though such trading would otherwise be permitted under this policy.  In
order to comply with this restriction, all purchases and/or sales by Officers or Directors shall be cleared beforehand with the Company's
CFO.  This restriction does not apply to the exercise of stock options.

(b) Before each transaction in Company securities, each Officer and Director is required to contact the CFO regarding (i)
compliance with Rule 144, if required; and (ii) the preparation of the requisite Form 4 to be filed with SEC.  The Finance Department will
assist the Officer or Director in completing the Form 4 and may file it on his or her behalf with the SEC.

in the dissemination of information must be directed to the CEO or in his absence, another officer of the Company.

(c) All outside requests for information, comments or interviews (other than routine product inquiries) which may result

APPROVED:

___________________________________
Christopher J. Schaber
President & CEO

Date

ACKNOWLEDGED:

___________________________________
Employee / Director

Date

INSIDER TRADING POLICY

The following represents a list of Soligenix, Inc.’s subsidiaries:

SUBSIDIARIES OF SOLIGENIX, INC.

Name
Enteron Pharmaceuticals, Inc.
Orasomal Technologies Inc.
Soligenix BioPharma Canada Incorporated
Soligenix UK Limited
Soligenix NE B.V.
Soligenix Biopharma HI, Inc.

Ownership

100.00%
75.30%
100.00%
100.00%
100.00%
100.00%

State of Incorporation
Delaware
Delaware
Canada
United Kingdom
Netherlands
Hawaii

EXHIBIT 21.1

    
    
 
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the Registration Statements of Soligenix, Inc. on Form S-3 (Nos. 333-252153
and 333-274265) and Form S-8 (Nos. 333-130801, 333-196941, 333-208515 and 333-268051) of our report dated March 15,
2024, on our audit of the financial statements as of December 31, 2023 and for the year then ended, which report is included
in this Annual Report on Form 10-K to be filed on or about March 15, 2024. Our report includes an explanatory paragraph
about the existence of substantial doubt concerning the Company's ability to continue as a going concern.

Exhibit 23.1

/s/ Cherry Bekaert LLP

CHERRY BEKAERT LLP
Tampa, Florida
March 15, 2024

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the Registration Statements of Soligenix, Inc. on Form S-3 (Nos. 333-252153
and 333-274265) and Form S-8 (Nos. 333-130801, 333-196941, 333-208515 and 333-268051) of our report dated March 31,
2023, on our audit of the financial statements as of December 31, 2022 and for the year then ended, which report is included
in this Annual Report on Form 10-K to be filed on or about March 15, 2024. Our report includes an explanatory paragraph
about the existence of substantial doubt concerning the Company's ability to continue as a going concern.

Exhibit 23.2

/s/ EisnerAmper LLP

EISNERAMPER LLP
New York, New York
March 15, 2024

EXHIBIT 31.1

CERTIFICATION PURSUANT TO RULE 13a-14(a)/15d-14(a)
OF THE SECURITIES EXCHANGE ACT OF 1934

I, Christopher J. Schaber, Ph.D., certify that:

1.   I have reviewed this Form 10-K of Soligenix, Inc. for the fiscal year ended December 31, 2023;

2.   Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material
fact necessary to make the statements made, in light of the circumstances under which such statements were made, not
misleading with respect to the period covered by this report;

3.   Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in
all  material  respects  the  financial  condition,  results  of  operations  and  cash  flows  of  the  registrant  as  of,  and  for,  the
periods presented in this report;

4.      The  registrant’s  other  certifying  officer  and  I  are  responsible  for  establishing  and  maintaining  disclosure  controls  and
procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as
defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.      Designed  such  disclosure  controls  and  procedures,  or  caused  such  disclosure  controls  and  procedures  to  be
designed under our supervision, to ensure that material information relating to the registrant, including its consolidated
subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is
being prepared;

b.   Designed such internal control over financial reporting, or caused such internal control over financial reporting to be
designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the
preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.      Evaluated  the  effectiveness  of  the  registrant’s  disclosure  controls  and  procedures  and  presented  in  this  report  our
conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by
this report based on such evaluation; and

d.   Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the
registrant’s  most  recent  fiscal  quarter  (the  registrant’s  fourth  fiscal  quarter  in  the  case  of  an  annual  report)  that  has
materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting;
and

5.   The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over
financial  reporting,  to  the  registrant’s  auditors  and  the  audit  committee  of  the  registrant’s  board  of  directors  (or  persons
performing the equivalent functions):

a.      All  significant  deficiencies  and  material  weaknesses  in  the  design  or  operation  of  internal  control  over  financial
reporting  which  are  reasonably  likely  to  adversely  affect  the  registrant’s  ability  to  record,  process,  summarize  and
report financial information; and

b.   Any fraud, whether or not material, that involves management or other employees who have a significant role in the

registrant’s internal control over financial reporting.

March 15, 2024

/s/ Christopher J. Schaber
Christopher J. Schaber, Ph.D.
President and Chief Executive Officer

EXHIBIT 31.2

CERTIFICATION PURSUANT TO RULE 13a-14(a)/15d-14(a)
OF THE SECURITIES EXCHANGE ACT OF 1934

I, Jonathan Guarino, certify that:

1.

I have reviewed this Form 10-K of Soligenix, Inc. for the fiscal year ended December 31, 2023;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material
fact necessary to make the statements made, in light of the circumstances under which such statements were made, not
misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in
all  material  respects  the  financial  condition,  results  of  operations  and  cash  flows  of  the  registrant  as  of,  and  for,  the
periods presented in this report;

4. The  registrant’s  other  certifying  officer  and  I  are  responsible  for  establishing  and  maintaining  disclosure  controls  and
procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as
defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed
under  our  supervision,  to  ensure  that  material  information  relating  to  the  registrant,  including  its  consolidated
subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is
being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be
designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the
preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated  the  effectiveness  of  the  registrant’s  disclosure  controls  and  procedures  and  presented  in  this  report  our
conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by
this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the
registrant’s  most  recent  fiscal  quarter  (the  registrant’s  fourth  fiscal  quarter  in  the  case  of  an  annual  report)  that  has
materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting;
and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over
financial  reporting,  to  the  registrant’s  auditors  and  the  audit  committee  of  the  registrant’s  board  of  directors  (or  persons
performing the equivalent functions):

a. All  significant  deficiencies  and  material  weaknesses  in  the  design  or  operation  of  internal  control  over  financial
reporting  which  are  reasonably  likely  to  adversely  affect  the  registrant’s  ability  to  record,  process,  summarize  and
report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the

registrant’s internal control over financial reporting.

March 15, 2024

/s/ Jonathan Guarino
Jonathan Guarino
Senior Vice President and Chief Financial Officer

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED
PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with this Form 10-K of Soligenix, Inc. (the “Company”) for the fiscal year ended December 31, 2023, as filed
with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned hereby certifies, pursuant to
18 U.S.C. Section 1350, that:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The  information  contained  in  the  Report  fairly  presents,  in  all  material  respects,  the  financial  condition  and  results  of

EXHIBIT 32.1

operations of the Company.

March 15, 2024

/s/ Christopher J. Schaber
Christopher J. Schaber, Ph.D.
President and Chief Executive Officer

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED
PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with this Form 10-K of Soligenix, Inc. (the “Company”) for the fiscal year ended December 31, 2023, as filed
with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned hereby certifies, pursuant to
18 U.S.C. Section 1350, that:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The  information  contained  in  the  Report  fairly  presents,  in  all  material  respects,  the  financial  condition  and  results  of

EXHIBIT 32.2

operations of the Company.

March 15, 2024

/s/ Jonathan Guarino
Jonathan Guarino
Senior Vice President and Chief Financial Officer

SOLIGENIX, INC.

INCENTIVE COMPENSATION RECOUPMENT POLICY

Exhibit 97

Introduction.  The  Board  of  Directors  (the  “Board”)  of  Soligenix,  Inc.  (the  “Company”)
1.
believes that it is in the best interests of the Company and its shareholders to create and maintain a
culture  that  emphasizes  integrity  and  accountability  and  that  reinforces  the  Company’s  pay-for-
performance compensation philosophy. The Board has therefore adopted this policy which provides
for  the  recoupment  of  Incentive-Based  Compensation  in  the  event  the  Company  is  required  to
prepare  a  Restatement  resulting  from  noncompliance  with  financial  reporting  requirements  under
the federal securities laws (this “Policy”). This Policy is designed to comply with Section 10D of
the  Securities  Exchange  Act  of  1934,  as  amended,  and  the  rules  and  regulations  thereunder
(collectively,  the  “Exchange  Act”),  and  the  corresponding  listing  standards  adopted  by  The
NASDAQ Stock Market (“Nasdaq Requirements”).

2.
Recoupment. If the Company is required to prepare a Restatement, the Board shall, unless
the Board’s Compensation Committee (the “Compensation Committee”) or, in the absence of the
Compensation Committee, a majority of the independent directors serving on the Board, determines
it  to  be  Impracticable,  take  Reasonably  Prompt  Action  to  recoup  all  Recoverable  Compensation
from  any  Covered  Person.  Subject  to  applicable  law,  the  Board  may  seek  to  recoup  Recoverable
Compensation  by  requiring  a  Covered  Person  to  repay  such  amount  to  the  Company;  by  adding
“holdback” or deferral policies to incentive compensation; by adding post-vesting “holding” or “no
transfer”  policies  to  equity  awards;  by  set-off  of  a  Covered  Person’s  other  compensation;  by
reducing future compensation; or by such other means or combination of means as the Board, in its
sole discretion, determines to be appropriate. This Policy is in addition to (and not in lieu of) any
right  of  repayment,  forfeiture,  or  off-set  against  any  Covered  Person  that  may  be  available  under
applicable  law  or  otherwise  (whether  implemented  prior  to  or  after  adoption  of  this  Policy).  The
Board  may,  in  its  sole  discretion  and  in  the  exercise  of  its  business  judgment,  determine  whether
and  to  what  extent  additional  action  is  appropriate  to  address  the  circumstances  surrounding  any
Restatement to minimize the likelihood of any recurrence and to impose such other discipline as it
deems appropriate.

3.
Administration  of  Policy.  The  Board  shall  have  full  authority  to  administer,  amend,  or
terminate this Policy and intends that this Policy will be applied to the fullest extent of the law. The
Board shall, subject to the provisions of this Policy, make such determinations and interpretations
and take such actions in connection with this Policy as it deems necessary, appropriate or advisable.
All  determinations  and  interpretations  made  by  the  Board  shall  be  final,  binding  and  conclusive.
The Board may delegate any of its powers under this Policy to the Compensation Committee of the
Board or, subject to the Nasdaq Requirements and the provisions of this Policy, any subcommittee
or delegate thereof. This Policy and all controversies arising from or relating to this Policy shall be
governed  by  and  construed  in  accordance  with  the  laws  of  the  State  of  Delaware,  without  giving
effect to its conflicts of law principles. It is intended that this Policy be interpreted in a manner that
is consistent with the requirements of Section 10D of the Exchange Act and any applicable rules or
standards  adopted  by  the  U.S.  Securities  and  Exchange  Commission  (the  “SEC”)  and  any
applicable Nasdaq Requirement. For the avoidance of doubt,

the  enforcement  of  this  Policy  is  not  dependent  on  if  or  when  any  applicable  restated  financial
statements are filed with the SEC.

4.
Acknowledgement  by  Executive  Officers.  The  Board  shall  provide  notice  to  and  seek
written  acknowledgement  of,  and  agreement  to  be  bound  by,  this  Policy  from  each  Executive
Officer in the form of Appendix A (“Acknowledgement”); provided that the failure to provide such
notice or obtain such Acknowledgement shall have no impact on the applicability or enforceability
of this Policy.

5.
No  Indemnification.  Notwithstanding  the  terms  of  any  of  the  Company’s  organizational
documents,  any  corporate  policy  or  any  contract,  no  Covered  Person  shall  be  indemnified  by  the
Company against the loss of any Recoverable Compensation. Further, the Company shall not enter
into  any  agreement  that  exempts  any  Incentive-Based  Compensation  that  is  granted,  paid  or
awarded to a Covered Person from the application of this Policy or that waives the Company’s right
to recovery of any Recoverable Compensation, and this Policy shall supersede any such agreement
(whether entered into before, on or after the Effective Date of this Policy).

6.
Disclosures. The Company shall make all disclosures and filings with respect to this Policy
and maintain all documents and records that are required by the applicable rules and forms of the
SEC  (including,  without  limitation,  Rule  10D-1  promulgated  under  the  Exchange  Act)  and  any
Nasdaq Requirement.

Effective Date. This Policy shall be effective as of the date it is adopted by the Board (the
7.
“Effective  Date”)  and  shall  apply  to  Incentive-Based  Compensation  that  is  Received  on  or  after
October 2, 2023.

Amendment. The Board may amend this Policy from time to time in its discretion and shall
8.
amend this Policy as it deems necessary to reflect any amendments or other changes to Section 10D
of the Exchange Act or any Nasdaq Requirement.

Definitions. In addition to terms otherwise defined in this Policy, the following terms, when

9.
used in this Policy, shall have the following meanings:

“Applicable  Period”  means  the  three  completed  fiscal  years,  including  any  Transition
Period, immediately preceding the earlier of: (i) the date that the Board, a committee of the
Board,  or  the  officer  or  officers  of  the  Company  authorized  to  take  such  action  if  Board
action is not required, concludes, or reasonably should have concluded, that the Company is
required  to  prepare  a  Restatement  or  (ii)  the  date  a  court,  regulator  or  other  legally
authorized body directs the Company to prepare a Restatement.

“Covered Person” means any person who receives Recoverable Compensation.

“Executive  Officer”  means  the  Company’s  president,  principal  financial  officer,  principal
accounting  officer  (or  if  there  is  no  such  accounting  officer,  the  controller),  any  vice-
president of the Company in charge of a principal business unit, division or function (such as
sales, administration or finance), any other officer who performs a policy-making

function,  or  any  other  person  who  performs  similar  policymaking  functions  for  the
Company.  Executive  officers  of  the  Company’s  parent(s)  or  subsidiaries  are  deemed
Executive  Officers  of  the  Company  if  they  perform  such  policy  making  functions  for  the
Company.

“Financial Reporting Measure” means the measures that are determined and presented in
accordance  with  the  accounting  principles  used  in  preparing  the  Company’s  financial
statements, and any measures that are derived wholly or in part from such measures. Stock
price  and  total  shareholder  return  (“TSR”)  are  also  considered  Financial  Reporting
Measures.  A  Financial  Reporting  Measure  need  not  be  presented  within  the  financial
statements or included in a filing with the SEC.

“Impracticable”  means,  after  exercising  a  normal  due  process  review  of  all  the  relevant
facts and circumstances and taking all steps required by Exchange Act Rule 10D-1 and any
applicable  Nasdaq  Requirement,  the  Compensation  Committee  or,  in  the  absence  of  the
Compensation  Committee,  a  majority  of  the  independent  directors  serving  on  the  Board,
determines that recovery of the Incentive-Based Compensation is impracticable because: (i)
it  has  determined,  after  making  a  reasonable  attempt  to  recover  such  Incentive-Based
Compensation,  documented  such  reasonable  attempt  to  recover  and  provided  that
documentation  to  The  NASDAQ  Stock  Market,  that  the  direct  expense  that  the  Company
would pay to a third party to assist in recovering the Incentive-Based Compensation would
exceed the amount to be recovered; (ii) it has concluded that the recovery of the Incentive-
Based Compensation would violate home country law adopted prior to November 28, 2022
and has received a legal opinion from home country counsel stating that the recovery would
result  in  such  a  violation;  or  (iii)  it  has  determined  that  the  recovery  of  Incentive-Based
Compensation  would  likely  cause  an  otherwise  tax-qualified  retirement  plan,  under  which
benefits are broadly available to the Company’s employees, to fail to meet the requirements
of 26 U.S.C. 401(a)(13) or 26 U.S.C. 411(a) and regulations thereunder.

“Incentive-Based  Compensation”  means  any  compensation  that  is  granted,  earned  or
vested based wholly or in part upon the attainment of a Financial Reporting Measure.

“Reasonably Prompt Action” means that each of the Company, its directors and its officers
act  in  a  manner  that  is  consistent  with  the  exercise  of  their  applicable  fiduciary  duties  to
safeguard the assets of the Company, including the time value of any potential Recoverable
Compensation.

“Received” means Incentive-Based Compensation received in the Company’s fiscal period
during  which 
the  Incentive-Based
Compensation  award  is  attained,  even  if  the  payment  or  grant  of  the  Incentive-Based
Compensation occurs after the end of that period.

the  Financial  Reporting  Measure  specified 

in 

“Recoverable  Compensation”  means  all  Incentive-Based  Compensation  (calculated  on  a
pre-tax basis) Received on or after the Effective Date by a person: (i) after beginning service
as  an  Executive  Officer;  (ii)  who  served  as  an  Executive  Officer  at  any  time  during  the
performance period for that Incentive-Based Compensation (whether or not such

Executive  Officer  is  serving  at  the  time  the  Recoverable  Compensation  is  required  to  be
repaid to the Company); (iii) while the Company had a class of securities listed on a national
securities exchange or national securities association; and (iv) during the Applicable Period,
that exceeded the amount of Incentive-Based Compensation that otherwise would have been
Received  had  the  amount  been  determined  based  on  the  Financial  Reporting  Measures,  as
reflected in the Restatement. With respect to Incentive-Based Compensation based on stock
price  or  TSR,  when  the  amount  of  erroneously  awarded  compensation  is  not  subject  to
mathematical recalculation  directly  from  the  information  in  an  accounting  restatement, the
amount must be based on a reasonable estimate of the effect of the Restatement on the stock
price or TSR upon which the Incentive-Based Compensation was received.

“Restatement”  means  an  accounting  restatement  of  any  of  the  Company’s  financial
statements  due  to  the  Company’s  material  noncompliance  with  any  financial  reporting
requirement  under  U.S.  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.

“Transition Period” means any transition period in the Company’s financial statements that
is the result of a change in the Company’s fiscal year within or immediately following the
relevant three completed fiscal year period; provided, however, a transition period between
the last day of the Company’s previous fiscal year and the first day of its new fiscal year that
comprises  a  period  of  nine  (9)  to  twelve  (12)  months  shall  be  deemed  to  be  a  completed
fiscal year for purposes of this Policy.

Adopted by the Board on November 29, 2023.

Appendix A

AGREEMENT AND ACKNOWLEDGEMENT OF POLICY FOR THE RECOVERY OF
ERRONEOUSLY AWARDED COMPENSATION

By  my  signature  below,  I,  as  an  Executive  Officer  of  Soligenix,  Inc.  (the  “Company”),  acknowledge  and  agree
that:

1.

I have received and read the attached Incentive Compensation Recoupment Policy (the “Policy”).

2.

I am a Covered Person as defined in the Policy.

3.

I will be bound by all of the terms and conditions of the Policy, Section 10D of the Exchange Act and any
applicable rules or standards adopted by the SEC, and any applicable Nasdaq Requirements both during and
after my employment with the Company, including, without limitation, by promptly repaying or returning
any  Recoverable  Compensation  to  the  Company  as  determined  in  accordance  with  the  Policy  and  this
Acknowledgement.

Capitalized terms used but not defined herein shall have the meanings ascribed to such terms in the Policy.

Signature:_____________________________

Printed Name:__________________________

Date:__________________________________