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Abeona Therapeutics Inc.

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FY2020 Annual Report · Abeona Therapeutics Inc.
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549

(Mark One)
☒

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

FORM 10-K

For the fiscal year ended December 31, 2020

Or

☐

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

For the transition period from _______ to _______

Commission file number 001-15771

ABEONA THERAPEUTICS INC.
(Exact name of registrant as specified in its charter)

Delaware
(State or other jurisdiction of
incorporation or organization)

83-0221517
(I.R.S. Employer I.D. No.)

1330 Avenue of the Americas, 33rd Floor, New York, NY 10019
(Address of principal executive offices, zip code)

(646) 813-4701
(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Securities Exchange Act of 1934:

Title of each class
Common Stock, $0.01 par value

Trading Symbol(s)
ABEO

Name of each exchange on which registered
Nasdaq Capital Markets

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 ☒

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 definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Act:

Large accelerated filer ☐
Non-accelerated filer ☒

Accelerated filer ☐
Smaller reporting company ☒
Emerging growth company ☐

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

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial
reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. Yes ☐ No ☒

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

The aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the average bid and asked price of such common
equity, as of June 30, 2020, was approximately $204,160,000.

The number of shares outstanding of the registrant’s common stock as of March 19, 2021 was 98,788,933 shares.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrant’s definitive Proxy Statement relating to our 2021 Annual Meeting of Stockholders are incorporated by reference into Part III of this Annual Report on
Form 10-K where indicated. Such Proxy Statement will be filed with the Securities and Exchange Commission within 120 days after the end of the fiscal year to which this

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
report relates.

 
 
 
 
Part I

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

Part II

Item 5.
Item 6.
Item 7.
Item 7A.
Item 8.
Item 9.
Item 9A.
Item 9B.

Part III

Item 10.
Item 11.
Item 12.
Item 13.
Item 14.
Item 15.
Item 16.

Signatures

TABLE OF CONTENTS

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

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

Directors, Executive Officers and Corporate Governance
Executive Compensation
Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
Certain Relationships and Related Transactions, and Director Independence
Principal Accounting Fees and Services
Exhibits, Financial Statement Schedules
Form 10-K Summary

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FORWARD-LOOKING STATEMENTS

This  Form  10-K  (including  information  incorporated  by  reference)  contains  statements  that  express  management’s  opinions,  expectations,  beliefs,  plans,  objectives,
assumptions or projections regarding future events or future results and therefore are, or may be deemed to be, “forward-looking statements” within the meaning of Section
27A  of  the  Securities  Act  of  1933,  as  amended,  and  Section  21E  of  the  Securities  Exchange  Act  of  1934,  as  amended.  Words  such  as  “expects,”  “anticipates,”  “intends,”
“plans,” “believes,” “could,” “would,” “seeks,” “estimates,” and variations of such words and similar expressions, and the negatives thereof, are intended to identify such
forward-looking  statements.  We  caution  readers  not  to  place  undue  reliance  on  any  such  “forward-looking  statements,”  which  speak  only  as  of  the  date  made,  and  advise
readers that these forward-looking statements are not guarantees of future performance and involve certain risks, uncertainties, estimates, and assumptions by management
that are difficult to predict. Various factors, some of which are beyond the Company’s control, could cause actual results to differ materially from those expressed in, or implied
by, such forward-looking statements. All such forward-looking statements, whether written or oral, and whether made by us or on our behalf, are expressly qualified by these
cautionary statements and any other cautionary statements that may accompany the forward-looking statements. In addition, we disclaim any obligation to update any forward-
looking statements to reflect events or circumstances after the date of this report, except as may otherwise be required by the federal securities laws.

Forward-looking statements necessarily involve risks and uncertainties, and our actual results could differ materially from those anticipated in forward-looking statements due
to a number of factors. These statements include statements about: the potential impacts of the COVID-19 pandemic on our business, operations, and financial condition; the
achievement of or expected timing, progress and results of clinical development, clinical trials and potential regulatory approvals; our Phase 3 clinical trial (VIITAL™) for
patients with recessive dystrophic epidermolysis bullosa (“RDEB”) and our beliefs relating thereto; our ability to identify and enroll patients in the Phase 3 clinical trial; our
pipeline of product candidates; our use of the proceeds from the Paycheck Protection Program loan and our eligibility for loan forgiveness under the Coronavirus Aid, Relief
and Economic Security Act, as amended; our belief that we have sufficient resources to fund operations for at least the next 12 months from the date of filing of this report; the
ongoing  arbitration  proceeding  with  REGENXBIO;  the  dilutive  effect  that  raising  additional  funds  by  selling  additional  equity  securities  would  have  on  the  relative  equity
ownership of our existing investors; our belief that EB-101 could potentially benefit patients with RDEB; our belief that adeno-associated virus (“AAV”) gene therapy could
potentially benefit patients with Sanfilippo syndrome type A (“MPS IIIA”) and Sanfilippo syndrome type B (“MPS IIIB”); our ability to develop our novel AAV-based gene
therapy platform technology; our belief in the adequacy of the data from clinical trials, including VIITAL™ and our Phase 1/2 clinical trials in ABO-102 (AAV-SGSH) for MPS
IIIA and ABO-101 (AAV-NAGLU) for MPS IIIB, together with the data generated in the program to date, to support regulatory approvals; the existence of intellectual property,
a license to which might be required to market MPS IIIA and MPS IIIB; our dependence upon our third-party and related-party customers and vendors and their compliance
with regulatory bodies; our intellectual property position and our ability to obtain, maintain and enforce intellectual property protection and exclusivity for our proprietary
assets; our estimates regarding the size of the potential markets for our product candidates, the strength of our commercialization strategies and our ability to serve and supply
those markets; and future economic conditions or performance.

Important factors that could affect performance and cause results to differ materially from management’s expectations are described in the sections entitled “Risk Factors” and
“Management’s Discussion and Analysis of Financial Condition and Results of Operations” in this Form 10-K. These factors include: the impact of the COVID-19 pandemic
on our business, operations (including our clinical trials), and financial condition, and on our ability to access the capital markets; our ability to access our existing at-the-
market sale agreement and any dilution that may result from accessing such sales agreement; our estimates regarding expenses, future revenues, capital requirements, and
needs for additional financing; our ability to raise capital; our ability to fund our operating expenses and capital expenditure requirements for at least the next 12 months with
our existing cash and cash equivalents; our ability to obtain additional equity funding from current or new stockholders, out-licensing technology and/or other assets, deferring
and/or eliminating planned expenditures, restructuring operations and/or reducing headcount, and sales of assets; the dilutive effect that raising additional funds by selling
additional equity securities would have on the relative equity ownership of our existing investors, including under our existing at-the-market sale agreement; our ability to
continue to develop our novel AAV-based gene therapy platform technology; the outcome of any interactions with the U.S. Food and Drug Administration (“FDA”) or other
regulatory  agencies  relating  to  any  of  our  products  or  product  candidates;  our  ability  to  execute  a  Phase  3  clinical  trial  for  patients  with  RDEB;  our  ability  to  complete
enrollment of patients into clinical trials to secure sufficient data to assess efficacy and safety; our ability to identify additional patients for our Phase 1/2 clinical trial for
patients with MPS IIIA and MPS IIIB; our ability to continue to secure and maintain regulatory designations for our product candidates; our ability to develop manufacturing
capability  compliant  with  current  good  manufacturing  practices  for  our  product  candidates;  our  ability  to  manufacture  gene  and  cell  therapy  products  and  produce  an
adequate  product  supply  to  support  clinical  trials  and  potentially  future  commercialization;  the  rate  and  degree  of  market  acceptance  of  our  product  candidates  for  any
indication once approved; and our ability to meet our obligations contained in license agreements to which we are party.

2

 
 
 
 
 
 
ITEM 1.

BUSINESS

Business

PART I

Abeona Therapeutics Inc., a Delaware corporation (together with our subsidiaries, “we,” “our,” “Abeona” or the “Company”), is a clinical-stage biopharmaceutical company
developing gene and cell therapies for life-threatening rare genetic diseases. Our lead clinical programs consist of: (i) EB-101, an autologous, gene-corrected cell therapy for
recessive dystrophic epidermolysis bullosa (“RDEB”), (ii) ABO-102, an adeno-associated virus (“AAV”)-based gene therapy for Sanfilippo syndrome type A (“MPS IIIA”),
and (iii) ABO-101, an AAV-based gene therapy for Sanfilippo syndrome type B (“MPS IIIB”). We continue to develop additional AAV-based gene therapies designed to treat
ophthalmic and other diseases and next-generation AAV-based gene therapies using the novel AIM™ capsid platform that we have exclusively licensed from the University of
North Carolina at Chapel Hill, and internal AAV vector research programs. Our product candidates are eligible for orphan drug designation, breakthrough therapy designation,
or other expedited review processes in the U.S., Europe, Japan, or other world markets. Our pipeline includes three programs in clinical development—EB-101, ABO-101 and
ABO-102— for which we hold several U.S. and European Union (“EU”) regulatory designations, and a pipeline of additional earlier stage programs:

Our robust pipeline features early- and late-stage candidates with the potential to transform the treatment of devastating genetic diseases, and we are conducting clinical trials in
the U.S. and abroad.

Our Mission and Strategy

Abeona  is  at  the  forefront  of  gene  and  cell  therapy  research  and  development.  We  are  a  fully-integrated  company  featuring  therapies  in  clinical  development,  in-house
manufacturing  facilities,  a  robust  pipeline,  and  scientific  and  clinical  leadership.  We  see  our  mission  as  working  to  create,  develop,  manufacture,  and  deliver  gene  and  cell
therapies  for  people  impacted  by  serious  diseases.  We  partner  with  leading  academic  researchers,  patient  advocacy  organizations  and  caregivers  to  develop  therapies  that
address the underlying cause of a broad spectrum of rare genetic diseases for which no effective treatment options exist today.

3

 
 
 
 
 
 
 
 
 
 
 
Since  our  last  fiscal  year,  we  have  continued  to  make  progress  toward  fulfilling  our  goal  of  harnessing  the  promise  of  genetic  medicine  to  transform  the  lives  of  people
impacted by serious diseases and redefining the standard of care through gene and cell therapies. Our strategy to achieve this goal consists of:

Advancing our Clinical Gene and Cell Therapy Programs and Research and Development with a Focus on Rare and Orphan Diseases.

We have three programs in clinical development—EB-101, ABO-101 and ABO-102—and a pipeline of additional earlier stage programs. Through our gene and cell
therapy  expertise  in  research  and  development,  we  believe  we  are  positioned  to  introduce  efficacious  and  safe  therapeutics  to  transform  the  standard  of  care  in
devastating diseases and establish our leadership position in the field.

Applying Novel Next-Generation AIM™ Capsid Technology to Develop New In-Vivo Gene Therapies.

We are researching and developing next-generation AAV-based gene therapy using our novel capsids developed from the AIM™ Capsid Technology Platform and
additional Company-invented AAV capsids. We plan to continue to develop chimeric AAV capsids capable of improved tissue targeting for various indications and
potentially evading immunity to wildtype AAV vectors.

Establishing Leadership Position in Commercial-Scale Gene and Cell Therapy Manufacturing.

We  established  current  Good  Manufacturing  Practice  (“cGMP”),  clinical-scale  manufacturing  capabilities  for  gene-corrected  cell  therapy  and  AAV-based  gene
therapies in our state-of-the-art Cleveland, OH facility. We believe that our platform provides us with distinct advantages, including flexibility, scale, reliability, and
the potential for reduced development risk, reduced cost, and faster times to market. We have focused on establishing internal Chemistry, Manufacturing and Controls
(“CMC”) capabilities that drive value for our organization through process development, assay development and manufacturing. We have also deployed robust quality
systems governing all aspects of product lifecycle from preclinical through commercial stage.

Establishing Additional Gene and Cell Therapy Franchises and Adjacencies through In-Licensing and Strategic Partnerships.

We seek to be the partner of choice in gene therapy disease treatment and have closely collaborated with leading academic institutions, key opinion leaders, patient
foundations, and industry partners to generate novel intellectual property, accelerate research and development, and understand the needs of patients and their families.

Maintaining and Growing IP Portfolio.

We strive to have a leading intellectual property portfolio. To that end, we seek patent rights for various aspects of our programs, including vector engineering and
construct  design,  our  production  process,  and  all  features  of  our  clinical  products  including  composition  of  matter  and  method  of  administration  and  delivery.  We
expect  to  continue  to  expand  our  intellectual  property  portfolio  by  aggressively  seeking  patent  rights  for  promising  aspects  of  our  product  engine  and  product
candidates.

4

 
 
 
 
 
 
 
 
 
 
 
 
 
Our Pipeline

Our robust pipeline features early- and late-stage candidates with the potential to transform the treatment of devastating genetic diseases, and we are conducting clinical trials in
the U.S. and abroad.

Our lead clinical programs consist of: (i) EB-101, an autologous, gene-corrected cell therapy for RDEB, (ii) ABO-102, an AAV-based gene therapy for MPS IIIA and (iii)
ABO-101, an AAV-based gene therapy for MPS IIIB. We continue to develop additional AAV-based gene therapies designed to treat ophthalmic and other diseases and next-
generation  AAV-based  gene  therapies  using  the  novel  AIM™  capsid  platform  that  we  have  exclusively  licensed  from  the  University  of  North  Carolina  at  Chapel  Hill,  and
internal AAV vector research programs.

Developing Next Generation Gene and Cell Therapy

EB-101 for the Treatment of Recessive Dystrophic Epidermolysis Bullosa (“RDEB”)

Disease Overview

RDEB belongs to a group of genetic skin disorders known more broadly as epidermolysis bullosa. Patients with RDEB have a defect in the COL7A1 gene, resulting in the
inability to produce Type VII collagen, which plays a vital role in anchoring the skin’s dermal and epidermal layers.

RDEB patients have fragile skin, which can easily damage to produce open and blistering wounds, disfiguring scars throughout the body, fused fingers and toes, limits in range
of  motion  at  joints  (e.g.,  arms  and  legs),  and  an  abnormal  narrowing  of  the  esophagus.  Long-term  RDEB  patients  can  suffer  from  anemia,  are  at  high  risk  of  developing
aggressive squamous cell carcinomas, infections, and premature death. The most severe patients are approximately 20 times more likely to die by 30 years of age than the
general population.

Similar to most ultra-rare diseases, the incidence and prevalence of RDEB are not well defined. Incidence of 0.2 to 3.05 per million births and prevalence of 0.14 to 1.35 per
million people have been observed across different geographies, primarily estimated by limited population analyses of clinical databases or registries (Eichstadt et al.; Clinical,
Cosmetic and Investigational Dermatology, 2019). Using genetic modeling of COL7A1 variants, which is believed to cause RDEB, Stanford University estimated the incidence
of RDEB to be approximately 63 per million births and prevalence could be up to 3,850 patients in the U.S., whose wounds may benefit from COL7A1-mediated treatments
such as EB-101.

RDEB  patients  have,  on  average,  11  active  wounds  on  their  bodies,  with  the  majority  >  20  cm2  (Stanford  University;  Solis,  D.,  et  al.,  2017).  In  2020,  a  survey  of  RDEB
patients reported that approximately 60% have active wounds covering greater than 30% of their bodies (Bruckner et al.; Orphanet Journal of Rare Diseases, 2020). Wounds
covering up to approximately 80% of body surface area have been recorded in some EB patients (Hirsch et al.; Nature Research, 2017).

We expect EB-101 could be a treatment option for all RDEB wounds and specifically target larger and/or chronic wounds for which EB-101 has shown durable healing and
associated pain reduction in a phase 1/2 clinical trial. The data from the phase 1/2 clinical trial supports the VIITAL™ phase 3 trial. These larger and/or chronic wounds carry
the highest burden, including the need for frequent dressing changes, pain, pruritus, risk of infection, and developing skin cancer.

Current Management of RDEB

At present, there are no approved treatments for RDEB in the U.S. or Europe.

Wound  management  currently  consists  of  supportive  care  to  limit  contamination  and  infection,  and  reduction  in  mechanical  forces  that  produce  new  blisters.  Care  usually
includes  treatment  of  new  blisters  by  lancing  and  draining.  Wounds  are  then  dressed  with  a  non-adherent  material,  covered  with  padding  for  stability  and  protection,  and
secured with an elastic wrap for integrity. The estimated annual cost of wound dressings alone for an RDEB patient can range from $245,000 per year to significantly higher in
more severe cases.

RDEB patients also have periodic surgeries to relieve disease related issues such as narrowing of their esophagus, fusing of fingers and corneal abrasions.

5

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Program Status

EB-101 is an autologous, gene-corrected cell therapy in which a functioning COL7A1 gene is inserted into a patient’s own skin cells (keratinocytes) using a retrovirus. The
keratinocytes are then transplanted back to the patient to restore Type VII collagen expression and skin function.

EB-101 has been granted Regenerative Medicine Advanced Therapy (“RMAT”), Breakthrough Therapy, Rare Pediatric Disease, and Orphan Drug designations by the U.S.
Food and Drug Administration (“FDA”); as well as Orphan Drug designation by the European Medicines Agency (“EMA”).

Results from a completed Phase 1/2 study that enrolled 7 patients with large and chronic RDEB wounds at Stanford University showed that EB-101 was well-tolerated and
resulted in significant and durable wound healing (Siprashvili, Z., et al., 2016), with up to seven years of follow-up (Eichstadt, S., et al. JCI Insight 2019). To date, there have
been no reported serious adverse events.

In 2020 Abeona initiated a pivotal Phase 3 clinical trial, referred to as VIITAL™, evaluating the potential of EB-101 for the treatment of RDEB. VIITAL™ is an ongoing
randomized,  control-matched  Phase  3  clinical  trial  assessing  treatment  with  EB-101  in  10  to  15  patients,  comprising  35  large  chronic  wound  sites  treated  in  total.  The  co-
primary endpoints of VIITAL™ are a) proportion of EB-101 treated wounds with >50% healing from baseline at 24 weeks and b) improvement in pain at 24 weeks assessed by
the Wong-Baker pain scale at time of dressing change versus an untreated control wound. The FDA has agreed on endpoints and other characteristics of the study.

ABO-102 and ABO-101 for the treatment of Mucopolysaccharidosis (MPS) III (Sanfilippo syndrome)

Disease Overview

MPS III (Sanfilippo syndrome) is a group of four inherited lysosomal storage diseases, described as type A, B, C or D, which result from enzyme deficiencies responsible for
abnormal accumulation of glycosaminoglycans (“GAGs”), which are long, linear polysaccharides also known as mucopolysaccharides, in body tissues that lead to progressive
cell damage and neurodevelopmental and physical decline. The incidence of MPS III (all four types combined) is estimated to be 1 in 70,000 births.

Lysosomes  are  intra-cellular  structures  responsible  for  a  continuous  process  of  replacing  used  materials  and  breaking  them  down  for  disposal.  Children  with  MPS  III  are
missing  a  lysosomal  enzyme  that  is  essential  in  breaking  down  used  mucopolysaccharides,  specifically  heparan  sulfate.  The  partially  broken  down  heparan  sulfate  remains
stored  in  cells  in  the  body  causing  progressive  lysosomal  and  cell  damage  and  eventually  cell  death.  Babies  may  show  little  sign  of  the  disease  early  in  life,  but  as
neurodevelopment is impaired and more cells become damaged, symptoms start to appear within the first few years of life.

In  MPS  III,  the  predominant  symptoms  are  speech/language  delay,  cognitive  decline,  behavioral  abnormalities,  motor  dysfunction,  and  seizures,  eventually  leading  to
premature  death.  Most  patients  with  the  rapidly  progressing  form  of  MPS  III  do  not  reach  a  level  of  cognitive  function  above  that  of  an  unaffected  three-year-old  child.
Accumulation of heparan sulfate and related cell dysfunction also affects other organs, leading to liver enlargement and soft tissue coarsening. To date, there is no cure for MPS
III and care is only supportive and palliative.

6

 
 
 
 
 
 
 
 
 
 
 
 
Program Status

We  are  developing  AAV-based  gene  therapies  ABO-102  and  ABO-101  for  MPS  IIIA  and  MPS  IIIB  (Sanfilippo  syndrome  Type  A  and  Sanfilippo  syndrome  Type  B),
respectively. These gene therapies are administered once through intravenous infusion. ABO-102 and ABO-101 deliver a functioning copy of the defective gene to cells of the
central  nervous  system  (“CNS”)  and  peripheral  organs  with  the  aim  of  halting  the  deleterious  effects  caused  by  the  malfunctioning  enzyme  and  impairment  of  lysosomal
functioning. Both viral vector constructs rely on the neurotropism of the AAV9 serotype and its ability to cross the blood brain barrier (“BBB”) and deliver the functional copy
of the gene to the CNS.

ABO-102 for MPS IIIA

Preclinical in  vivo  efficacy  studies  in  animals  with  MPS  IIIA  showed  that  a  single  dose  of  ABO-102  significantly  restored  cell  and  organ  function,  corrected  neurological
deficits, increased motor control, and increased the lifespan by more than 100% one year after treatment compared with untreated control animals. In addition, safety studies
conducted  in  animal  models  of  MPS  IIIA  demonstrated  that  delivery  of  ABO-102  was  well-tolerated  with  minimal  side  effects.  ABO-102  received  Fast  Track  and  RMAT
designations by the FDA, PRIME designation in the EU, Orphan Drug designations in the U.S. and EU, and FDA Rare Pediatric Disease designation.

On February 12, 2021, we reported updated data from the ongoing Phase 1/2 gene transfer clinical trial of ABO-102 (scAAV9.U1a.hSGSH) for Mucopolysaccharidosis IIIA, or
MPS IIIA, (study ABT-001; NCT02716246). MPS IIIA is caused by the absence of functional SGSH gene. In the trial, subjects receive a single intravenous injection of ABO-
102 to facilitate systemic delivery, including to the CNS, of a functional SGSH gene. Subjects are evaluated at multiple time points post-treatment for safety and signals of
biopotency and clinical efficacy. The results to-date from the high dose cohort 3 (currently enrolling) showed evidence of preservation of neurocognitive development with
continuous cognitive gains within normal range of a non-afflicted child, for 2.5 years to 3 years after treatment with ABO-102 in the three young patients treated before 30
months of age with relevant follow-up, as well as dose-related and sustained reduction in cerebrospinal fluid (“CSF”) levels of heparan sulfate, denoting transgene expression in
the CNS, and a durable reduction of liver volume. No treatment related serious adverse events (“SAEs”) have been reported to date, with follow-up longer than two years post
treatment in the majority of patients.

Summary of MPS IIIA ABO-102 Phase 1/2 Study Data:

● 19 patients treated as of January 2021
● Clear dose-response and sustained reduction of heparan sulfate levels in CSF
● Sustained reduction in liver volume
● Positive neurocognitive signals seen in younger, higher functioning patients enrolled in cohort 3
● As of January 2021, mean follow-up in cohort 1 (55 months); cohort 2 (47 months); and cohort 3 (24 months):

○ ABO-102 has been well tolerated to date
○ No deaths
○ No infusion-related adverse events
○ No serious drug-related adverse events
○ ELISpot negative for the SGSH enzyme

We have initiated a second Phase 1/2 clinical trial with ABO-102 (study ABT-003; NCT04088734) to treat patients who do not qualify for participation on study ABT-001
because  of  their  more  advanced  cognitive  impairment  caused  by  MPS  IIIA.  The  first  patient  in  study  ABT-003  was  enrolled  in  2019  at  Adelaide  Women’s  and  Children’s
Hospital in Australia and two more patients were enrolled in Spain in 2020. We initiated this clinical trial in the U.S. in early 2021.

7

 
 
 
 
 
 
 
 
 
 
ABO-101 for MPSIIIB

Preclinical in vivo efficacy studies in mice with MPS IIIB showed that a single dose of ABO-101 significantly restored cell and organ function, corrected neurological deficits,
increased neuromuscular control, and normalized lifespan compared with untreated control animals. In addition, safety studies conducted in MPS IIIB mice and wildtype mice,
and in non-human primates, demonstrated that systemic delivery of ABO-101 was well tolerated with minimal side effects.

In the ABO-101 (rAAV9.CMV.hNAGLU) program for Mucopolysaccharidosis IIIB (MPS IIIB), subjects in our ongoing Phase 1/2 gene transfer clinical study (study ABT-002;
NCT03315182) receive a single, intravenous infusion of ABO-101, which uses an AAV9 vector to introduce a functional NAGLU gene to treat patients with MPS IIIB disease.
Subjects are evaluated at multiple time points post-injection for safety assessments and efficacy parameters. On February 12, 2021, we reported updated data from the ABT-002
trial showing dose dependent increases in plasma NAGLU activity, with normalization up to 6 months in cohort 3, accompanied by dose-dependent reductions of plasma and
urinary heparan sulfate and urinary GAGs and decreased CSF levels of heparan sulfate levels sustained up to 24 months in the patient in Cohort 1 that reached that timepoint.
Longer follow-up in patients treated in cohorts 2 and 3 is needed to address cognitive changes. There was one serious drug-related adverse event of prolonged hospitalization
reported in cohort 3 where the patient experienced a grade 2 episode of diarrhea and vomiting after treatment with ABO-101 and was required to stay in the hospital for two
additional days for observation.

As of February 2021, the clinical trial is ongoing in the U.S., Spain, Germany, and France.

Summary of MPS IIIB ABO-101 Phase 1/2 Study Data:

● 11 patients treated as of January, 2021
● Clear signals of biologic effect with reduction of disease-specific biomarkers in the CSF, plasma and urine and reduction in liver volumes
● Longer follow-up in patients treated in Cohorts 2 and 3 is needed to address cognitive changes
● As of January 2021, mean follow-up in cohort 1 (31 months), cohort 2 (17 months) and cohort 3 (7 months):

○ ABO-101 has been well tolerated to date
○ No deaths
○ No infusion-related adverse events
○ One serious drug-related adverse event requiring two additional days of hospitalization for observation due to a grade 2 episode of diarrhea and vomiting
○ ELISpot negative for the NAGLU enzyme

ABO-50X for the treatment of genetic eye disorders

Program Overview

This research program comprises several vectors being tested for different monogenic retinal disorders. Eighty percent of genetic eye disorders affect the photoreceptor cells,
and correction of mutations in the retina has been accomplished by several groups using AAV gene therapy delivered through subretinal injection. We are exploring various
routes  of  administration  to  deliver  AAV  to  the  retina,  including  intravitreal  and  para-retinal  delivery.  We  believe  intravitreal  delivery  of  small  volume  gene  therapies  is  an
attractive  alternative  to  deliver  gene  therapy  to  the  retina  in  an  out-patient  setting.  We  anticipate  para-retinal  injection  to  be  safer  as  compared  to  subretinal  and  may  serve
programs that currently require subretinal dosing.

Program Status

In  a  preclinical  study,  we  noted  that  intravitreal  administration  of  the  novel  AIM™  AAV204  capsid  in  non-human  primates  resulted  in  broad  transgene  expression  in  the
peripheral retina as well as intense expression in the fovea 25 days post-administration. AAV204 also transduced photoreceptor cells in retinal explants and transduced the outer
retina, with positive green fluorescent protein expression.

8

 
 
 
 
 
 
 
 
 
 
 
 
 
The non-human primate data were complemented by findings from mice models, which identified AAV204 as one of three lead candidate AIM™ capsids that demonstrate
robust  transduction  of  retinal  cells.  The  data  in  mice  demonstrated  that  intravitreal  administration  resulted  in  broad  retinal  expression  of  AAV204  that  penetrated  to  the
photoreceptor and retinal pigmented epithelium layers.

ABO-201 for the treatment of CLN3 disease, also known as juvenile Batten disease (or Juvenile Neuronal Ceroid Lipofuscinosis) (“CLN3 Disease”)

Disease Overview and Program Overview

CLN3 disease is a rare, fatal, autosomal recessive (inherited) disorder of the nervous system that typically begins between 4 and 8 years of age. Often the first noticeable sign of
CLN3  disease  is  vision  impairment,  which  tends  to  progress  rapidly  and  eventually  result  in  blindness.  As  the  disease  progresses,  children  experience  loss  of  previously
acquired skills (developmental regression). This regression usually begins with the loss of the ability to speak in complete sentences. Children then lose motor skills, such as the
ability  to  walk  or  sit.  They  also  develop  movement  abnormalities  that  include  rigidity  or  stiffness,  slow  or  diminished  movements  (hypokinesia),  and  stooped  posture.
Beginning  in  mid-to-late-childhood,  affected  children  may  have  recurrent  seizures  (epilepsy),  heart  problems,  behavioral  problems,  and  difficulty  sleeping.  Normal  life
expectancy is greatly reduced. Most people with juvenile Batten disease live into their twenties or thirties. As of December 31, 2020, no specific treatment is known that can
halt or reverse the symptoms of CLN3 disease.

ABO-201 (scAAV9.CLN3) is an AAV-based gene therapy that has shown preclinical efficacy following delivery of a functioning copy of the CLN3 gene to a mouse model of
CLN3 disease. Preclinical studies have previously demonstrated reduced lysosomal storage and decreased astrocyte/microglia activation in the CNS as well as improved motor
function.

ABO-401 for the Treatment of Cystic Fibrosis

Disease Overview and Program Overview

Cystic Fibrosis (“CF”) is a progressive genetic disorder caused by a mutation in the cystic fibrosis transmembrane conductance regulator (“CFTR”) gene. Malfunction of this
gene  affects  cells  that  produce  mucus,  sweat  and  digestive  juices.  In  unaffected  individuals,  these  secreted  fluids  are  normally  thin  and  slippery,  but  in  cystic  fibrosis,  a
defective gene causes the secretions to become sticky and thick. Instead of acting as a lubricant, the secretions plug up tubes, ducts, and passageways, especially in the lungs
and pancreas, and cause repeated lung infections and difficulty breathing, and impaired pancreas function and digestive abnormalities.

The preclinical ABO-401 program employs the AAV204 AIMTM capsid. ABO-401 has shown the ability to deliver the CFTR transgene to the lungs of gut-corrected delta-
F508  mice.  Another  study  also  demonstrated  CFTR  transgene  expression  that  has  corrected  the  underlying  chloride  current  deficit  in  human  CF  donor  derived  nasal  and
bronchial  epithelium  cells  grown  at  the  air-liquid  interface  and  treated  with  ABO-401.  Correction  of  chloride  channel  current  following  ABO-401  administration  occurred
regardless of underlying mutations of the CF transmembrane conductance regulators, including the most common CF mutation, delta-F508.

Next-Generation Gene Therapy Treatments anchored in AIM™ Vector Platform

In 2016, we licensed a library of first-generation novel AAV capsids from the University of North Carolina at Chapel Hill. In partnership with academic institutions, our own
scientific research teams have identified vectors within the AIM™ capsid library showing strong potential to successfully target and reach the central nervous system, lung,
muscle, liver, and other tissues. Based on continuing research being conducted by Abeona and our research partners, we observed improvements in gene delivery to specific
tissues compared to currently available AAV technology. We believe AIM™ vectors also have the potential for redosing subjects who previously received certain AAV gene
therapy or subjects who have pre-existing antibodies to naturally occurring AAV serotypes.

9

 
 
 
 
 
 
 
 
 
 
 
 
 
Establishing Leadership Position in Commercial-Scale Gene and Cell-Therapy Manufacturing

We have established a cGMP manufacturing facility, the Elisa Linton Center located in Cleveland, Ohio, which enables us to enhance supply chain control, establish tighter
quality  control  testing,  increase  supply  capacity,  reduce  production  costs  and  gain  manufacturing  efficiency  for  clinical  trials  related  to  our  product  candidates  and  ensure
commercial demand is met in the event our therapies receive marketing approval. Our facility is led by a team of highly-skilled production, process/assay development and
QA/QC scientists with expertise in gene and cell therapy, particularly in cell culture, formulation, upstream, downstream and purification manufacturing. We have completed
the first two phases of our 26,000+ square foot manufacturing build-out plans in Cleveland, Ohio. The first phase, completed in 2018, was a 6,000 square foot state-of-the-art
cGMP  production  facility  for  the  manufacturing  of  gene  and  cell  therapies.  The  facility  is  designed  to  initially  manufacture  clinical  drug  products  with  later  intent  of
manufacturing  commercial  grade  cGMP  drug  product.  The  second  phase,  completed  in  2019,  was  the  completion  of  an  additional  8,000  square  feet  of  state-of-the-art
laboratory space to support our expanding quality control and process development, and assay development teams. The second phase also included nearly 2,000 square feet of
cGMP Inventory Control space. The last phase of our manufacturing build-out plan would be a clinical/commercial AAV facility to support manufacturing to meet anticipated
product demand globally.

We have advanced our in-house manufacturing capabilities for our autologous cell replacement therapy (EB-101) for the treatment of RDEB. The product is manufactured as a
multilayer cellular sheet containing corrected keratinocytes that is fastened to a petrolatum gauze backing with surgical hemoclips. It is applied over wound areas, where they
are expected to produce keratinocytes with functioning Type VII collagen, providing wound coverage and allowing for long-term wound healing. A key component to the EB-
101 drug product manufacturing process is the retroviral vector which delivers the functional copy of the Collagen VII Alpha 1 cDNA to the autologous patient cells. We have
developed the cGMP manufacturing process for the LZRSE-Col7A1 retroviral vector and have produced three GMP lots for analytical and clinical comparability. We have
developed a GMP master cell bank and a working cell bank to support the GMP production of the retroviral vector.

We are developing AAV vector manufacturing capabilities that use the triple plasmid transient transfection method. We insert, or transfect, many copies of three DNA plasmids
encoding the specific therapeutic gene sequence, or transgene, the capsid coding sequence, and helper sequences into AAV-293 cells using a serum-free, suspension bioreactor
vector production technology. During an incubation period following transfection, each cell produces AAV vectors through biosynthesis using the cells’ natural machinery. At
the end of the incubation period, the newly generated AAV vectors are harvested, then purified and filtered in a multi-step process. We continue to maintain focus on cGMP
compliance and ensuring adequate supply to support our future clinical activity.

We  have  established  and  maintained  strong  and  collaborative  relationships  with  third-party  companies  specializing  in  the  testing  of  gene  and  cell  therapy  material  to
complement our process and assay development needs.

We  have  made  significant  investments  in  developing  optimized  manufacturing  processes  and  believe  that  our  processes  and  methods  developed  to  date  provide  a
comprehensive manufacturing process for EB-101 and AAV-based vector therapies, including:

● sufficient scale to support commercial manufacturing requirements for EB-101
● processes related to biopsy, cell collection, storage and transportation as part of manufacturing for EB-101
● processes related to product release testing for EB-101
● processes related to the manufacture of retroviral supernatant
● establishing transportation and packaging processes and materials for finished EB-101 product
● proprietary AAV vector manufacturing processes and techniques that produce a highly purified product candidate
● AAV serum-free suspension technology that is readily scalable
● multiple assays to accurately characterize our process and the AAV vectors we produce
● a series of purification processes, which may be adapted and customized for multiple different AAV capsids, with a goal of higher concentrations of active vectors,

and that are essentially free of empty capsids.

10

 
 
 
 
 
 
 
 
 
We believe that these improvements and our continued investment in our manufacturing platform will enable us to develop best-in-class, next-generation gene and cell therapy
products. As we look to commercialize EB-101, we are working towards filing a Biologics License Application (“BLA”) to support commercial manufacturing of EB-101 from
our Cleveland facility.

Maintain a Strong Intellectual Property Portfolio

We strive to protect our commercially important proprietary technology, inventions, and know-how, including by seeking, maintaining, and defending patent rights, both for
inventions developed internally and for inventions licensed from third parties. We also rely on trade secrets and know-how relating to our proprietary technology platforms,
continuing technological innovation, and in-licensing opportunities to develop, strengthen and maintain our position in the field of gene and cell therapy. We may also rely on
regulatory protection afforded through data exclusivity, market exclusivity, and patent term extensions where available.

Our success may depend in part on our ability to obtain and maintain patent and other protections for commercially important technology, inventions and know-how related to
our  business;  defend  and  enforce  our  patents;  preserve  the  confidentiality  of  our  trade  secrets;  and  operate  without  infringing  the  valid  enforceable  patents  and  intellectual
property rights of third parties. Our ability to stop third parties from making, having made, using, selling, offering to sell or importing our products may depend on the extent to
which we have rights under valid and enforceable licenses, patents or trade secrets that cover these activities. In some cases, these rights may need to be enforced by third-party
licensors. With respect to both licensed and company-owned intellectual property, we may not be granted patents with respect to any of our pending patent applications or with
respect to any patent applications filed by us in the future, nor can we be sure that any of our existing patents or any patents that may be granted to us in the future will be
commercially useful in protecting our commercial products and methods of manufacturing the same.

We are actively seeking U.S. and international patent protection for a variety of technologies, including the following: research tools and methods, methods for transferring
genetic  material  into  cells,  AAV-based  biological  products,  methods  of  designing  novel  AAV  constructs,  methods  for  treating  diseases  of  interest  and  methods  for
manufacturing, packaging, and transporting our product candidates. We also intend to seek patent protection or rely upon trade secret rights to protect other technologies that
may be used to discover and validate targets and that may be used to identify and develop novel biological products. We seek protection, in part, through confidentiality and
proprietary information agreements. We are a party to various license agreements that give us rights to use specific technologies in our research and development, and future
commercialization.

Licensed Technologies and Intellectual Property

1. Mucopolysaccharidosis (“MPS”) IIIA and IIIB

We have secured an exclusive license through Nationwide Children’s Hospital to a family of patent applications for AAV-based treatments for patients with MPS IIIA and IIIB.
The family includes three pending applications in the United States. United States patent(s) that may grant from this family would be expected to expire in approximately 2031
and 2032.

2. CLN3 Disease (Juvenile Batten Disease)

We have licensed exclusive rights to an international patent family from the University of Nebraska Medical Center and the Ohio State Innovation Foundation, directed to AAV
gene therapy for the treatment of CLN3 disease (also known as juvenile Batten disease). The licensed patent family includes pending national stage applications in the United
States,  Canada,  Europe,  China,  Japan,  New  Zealand,  and  Australia,  as  well  as  U.S.  Patent  No.  10,876,134  (“the  ‘134  Patent”),  entitled  “Gene  therapy  for  juvenile  batten
disease,” which was issued on December 29, 2020 and contains claims directed to CLN3-related vectors, methods, and formulations. The ‘134 Patent is expected to expire in
December 2035 absent any future grant of patent term extension.

11

 
 
 
 
 
 
 
 
 
 
 
 
3. Recessive Dystrophic Epidermolysis Bullosa

To support our EB franchise, we have licensed a patent family from Stanford University covering technology for the treatment of RDEB. National stage patent applications are
pending in the United States, Canada, Europe, Israel, Japan, South Korea, China, New Zealand, Australia, Russia, Mexico, South Africa, and Brazil. United States patent(s) that
may grant from this portfolio would be expected to expire in approximately 2037. We have also filed a United States provisional patent application directed to packaging and
transport of the EB product.

4. AIM™ Capsids

We have an exclusive license to an international patent family from UNC at Chapel Hill covering novel adeno-associated virus (“AAV”) capsids (“AIM™ capsids”) that may
potentially be used to deliver a wide variety of therapeutic transgenes to human cells to treat genetic diseases. National stage applications directed to the AIM™ capsids have
been filed in the United States, Australia, Brazil, China, Hong Kong, Europe, Canada, Israel, India, Japan, South Korea, Mexico, New Zealand, Russia, and South Africa. The
first patent in this patent family, U.S. Patent No. 10,532,110 (the “‘110 Patent”), issued to UNC on January 14, 2020. The ‘110 Patent is entitled to 352 days of patent term
adjustment, making its projected expiration date November 6, 2036. The second patent in this patent family, U.S. Patent No. 10,561,743 (the “‘743 Patent”), issued to UNC on
February 18, 2020. The ‘743 Patent is expected to expire on November 20, 2035. We have exclusive rights to both the ‘110 Patent and the ‘743 Patent under our license with
UNC.

5. CLN1 Disease (Infantile Batten Disease)

We have also licensed from UNC at Chapel Hill rights to a patent portfolio directed to optimized CLN1 genes and expression cassettes for use in treating CLN1 disease (also
known as infantile Batten disease). Patent applications are pending in the United States, Canada, Europe, Israel, India, China, Japan, South Korea, Australia, New Zealand,
Mexico, Brazil, Russia, and South Africa. United States patent(s) that may grant from this portfolio would be expected to expire approximately in 2037. In August 2020, we
entered into an agreement exclusively sublicensing the CLN1 patent portfolio to Taysha Gene Therapies.

6. Rett Syndrome

We have licensed rights to patent applications from both UNC at Chapel Hill and the University of Edinburgh relating to gene therapy for the treatment of Rett Syndrome. The
patent applications licensed from UNC at Chapel Hill are directed to viral genomes designed to regulate expression of the MeCP2 gene, which is mutated in patients with Rett
Syndrome.  The  patent  applications  licensed  from  the  University  of  Edinburgh  are  directed  to  expression  cassettes  for  MeCP2  polypeptides  and  to  synthetic  MeCP2
polypeptides. National stage applications for the patent application directed to MeCP2 expression cassettes are now pending in the United States, Canada, Brazil, China, Japan,
Australia, Europe, India, South Korea, and Russia, and national stage applications for the international application directed to synthetic polypeptides are currently pending in
the United States, Canada, Brazil, China, and Japan. In October 2020, we entered into an agreement exclusively sublicensing these UNC and Edinburgh patent rights to Taysha
Gene Therapies.

We will explore in due course strategies to support patent term extensions for all of our licensed portfolios.

12

 
 
 
 
 
 
 
 
 
 
 
U.S. Biologic Products Development Process

In  the  United  States,  the  FDA  regulates  biologic  products  including  gene  therapy  products  under  the  Federal  Food,  Drug,  and  Cosmetic Act  (“FDCA”),  the  Public  Health
Service  Act  (“PHSA”),  and  regulations  implementing  these  laws.  The  FDCA,  PHSA  and  their  corresponding  regulations  govern,  among  other  things,  the  testing,
manufacturing,  safety,  efficacy,  labeling,  packaging,  storage,  record  keeping,  distribution,  advertising,  and  promotion  of  biologic  products.  Applications  to  the  FDA  are
required before conducting human clinical testing of biologic products. FDA approval also must be obtained before marketing of biologic products. Gene therapy studies may
also need to comply with the National Institutes of Health (“NIH”) Guidelines for Research Involving Recombinant or Synthetic Nucleic Acid Molecules (“NIH Guidelines”),
which includes additional requirements, such as the review and approval of the study by an Institutional Biosafety Committee. Moreover, in light of the COVID-19 pandemic,
the FDA has issued a number of guidance documents to assist companies navigating COVID-19, product development, and manufacturing, including guidance specific to gene
therapies.

Within the FDA, the Center for Biologics Evaluation and Research (“CBER”) regulates gene therapy products. Within CBER, the review of gene therapy and related products
is  consolidated  in  the  Office  of  Tissues  and  Advanced  Therapies  (“OTAT”)  and  the  FDA  has  established  the  Cellular,  Tissue  and  Gene  Therapies  Advisory  Committee
(“CTGTAC”),  a  panel  of  medical  and  scientific  experts  and  consumer  representatives,  to  advise  CBER  on  its  reviews.  The  FDA  has  issued  a  growing  body  of  guidance
documents on chemistry, manufacturing, and control (“CMC”), clinical investigations and other areas of gene therapy development, all of which are intended to facilitate the
industry’s development of gene therapy products.

The process required by the FDA before a biologic product candidate may be marketed in the United States generally involves the following:

● completion of preclinical laboratory tests and in vivo studies in accordance with the FDA’s current Good Laboratory Practice (“GLP”) regulations and applicable

requirements for the humane use of laboratory animals or other applicable regulations;

● submission to  the  FDA  of  an  application  for  an  Investigational  New  Drug  Application  (“IND”),  which  allows  human  clinical  trials  to  begin  unless  the  FDA

objects within 30 days;

● approval by an independent institutional review board (“IRB”), reviewing each clinical site before each clinical trial may be initiated;
● performance  of  adequate  and  well-controlled  human  clinical  trials  according  to  the  FDA’s  Good  Clinical  Practice  (“GCP”)  regulations,  and  any  additional
requirements  for  the  protection  of  human  research  subjects  and  their  health  information,  to  establish  the  safety  and  efficacy  of  the  proposed  biologic  product
candidate for its intended use;

● development of manufacturing processes to ensure the product candidate’s identity, strength, quality, purity, and potency;
● preparation  and  submission  to  the  FDA  of  a  BLA  for  marketing  approval  that  includes  substantial  evidence  of  safety,  purity  and  potency  from  results  of

nonclinical testing and clinical trials;

● satisfactory completion of an FDA pre-approval inspection of the manufacturing facility or facilities where the biologic product candidate is produced to assess
compliance with cGMP and to assure that the facilities, methods and controls are adequate to preserve the biologic product candidate’s identity, safety, strength,
quality, potency and purity;

● potential FDA audit of the nonclinical and clinical trial sites that generated the data in support of the BLA; and
● payment of user fees and the FDA review and approval, or licensure, of the BLA. BLA application fees for products designated as orphan drugs by the FDA are

waived.

Before testing any biologic product candidate on humans, including a gene therapy product candidate, the product candidate must undergo preclinical testing. Preclinical tests,
also referred to as nonclinical studies, include laboratory evaluations of product chemistry, toxicity, and formulation, as well as in vivo studies to assess the potential safety and
activity of the product candidate. The conduct of the preclinical tests must comply with federal regulations and requirements including GLPs.

13

 
 
 
 
 
 
 
 
If a gene therapy trial is conducted at, or sponsored by, institutions receiving NIH funding for recombinant DNA research, the study must also comply with the NIH Guidelines.
Compliance with the NIH Guidelines is mandatory for investigators at institutions receiving NIH funds for research involving recombinant DNA. However, many companies
and other institutions, not otherwise subject to the NIH Guidelines, voluntarily follow them.

The clinical trial sponsor must submit the results of the preclinical tests, together with manufacturing information, analytical data, any available clinical data or literature and a
proposed clinical protocol, to the FDA as part of the IND. Some preclinical testing may continue even after the IND is submitted. The IND automatically becomes effective 30
days after receipt by the FDA, unless the FDA places the clinical trial on a clinical hold. In such a case, the IND sponsor and the FDA must resolve any outstanding concerns
before the clinical trial can begin. The FDA also may impose clinical holds on a biologic product candidate at any time before or during clinical trials due to safety concerns or
non-compliance. If the FDA imposes a clinical hold, trials may not commence or recommence without FDA authorization and then only under terms authorized by the FDA.

Human clinical trials under an IND

Clinical trials involve the administration of the biologic product candidate to healthy volunteers or patients under the supervision of qualified investigators, which generally are
physicians not employed by, or under the control of, the trial sponsor. Investigators must also provide certain information to the clinical trial sponsors to allow the sponsors to
make certain financial disclosures to the FDA. Clinical trials are conducted under protocols detailing, among other things, the objectives of the clinical trial, dosing procedures,
subject selection and exclusion criteria and the parameters to be used to monitor subject safety, including stopping rules that assure a clinical trial will be stopped if certain
adverse  events  should  occur.  Each  protocol  and  any  amendments  to  the  protocol  must  be  submitted  to  the  FDA  as  part  of  the  IND.  Clinical  trials  must  be  conducted  and
monitored in accordance with the FDA’s regulations comprising the GCP requirements, including the requirement that all research subjects provide informed consent.

Further,  each  clinical  trial  must  be  reviewed  and  approved  by  an  IRB  at  or  servicing  each  institution  at  which  the  clinical  trial  will  be  conducted.  An  IRB  is  charged  with
protecting  the  welfare  and  rights  of  trial  participants  and  considers  items  such  as  whether  the  risks  to  individuals  participating  in  the  clinical  trials  are  minimized  and  are
reasonable in relation to anticipated benefits. The IRB also approves communications to study subjects before a study commences at that site and the form and content of the
informed consent that must be signed by each clinical trial subject, or his or her legal representative, and must monitor the clinical trial until completed. Clinical trials involving
recombinant DNA also must be reviewed by an institutional biosafety committee (“IBC”), a local institutional committee that reviews and oversees basic and clinical research
that utilizes recombinant DNA at that institution. The IBC assesses the safety of the research and identifies any potential risk to public health or the environment.

Information about certain clinical trials, including a description of the study and study results, must be submitted within specific timeframes to NIH for public dissemination on
their clinicaltrials.gov website. Sponsors or distributors of investigational products for the diagnosis, monitoring, or treatment of one or more serious diseases or conditions
must also have a publicly available policy on evaluating and responding to requests for expanded access requests.

Investigational biologics and therapeutic substances imported into the United States are also subject to regulation by the FDA. Further, the export of investigational products
outside of the United States is subject to regulatory requirements of the receiving country as well as U.S. export requirements under the FDCA.

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

● Phase  1:  The  biologic  product  candidate  initially  is  introduced  into  healthy  human  subjects  and  tested  for  safety,  dosage  tolerance,  absorption,  metabolism,
distribution, excretion and, if possible, to gain an early understanding of its effectiveness. In the case of some product candidates for severe or life-threatening
diseases,  especially  when  the  product  candidate  may  be  too  inherently  toxic  to  ethically  administer  to  healthy  volunteers,  the  initial  human  testing  is  often
conducted in patients.

● Phase 2: The biologic product candidate is evaluated in a limited patient population to identify possible adverse effects and safety risks, to preliminarily evaluate

the efficacy of the product candidate for specific targeted diseases and to determine dosage tolerance, optimal dosage and dosing schedule.

14

 
 
 
 
 
 
 
 
 
 
 
● Phase 3: The biologic product candidate is administered to an expanded patient population at geographically dispersed clinical trial sites in adequate and well-
controlled clinical trials to generate sufficient data to statistically confirm the efficacy and safety of the product for approval. These clinical trials are intended to
establish the overall risk/benefit ratio of the product candidate and provide an adequate basis for product labeling. Typically, two Phase 3 trials are required by the
FDA  for  product  approval.  Under  some  limited  circumstances,  however,  the  FDA  may  approve  a  BLA  based  upon  a  single  Phase  3  clinical  study  plus
confirmatory evidence or a single large multicenter trial without confirmatory evidence.

Additional kinds of data may also help to support a BLA, such as patient experience data. Real world evidence may also support a BLA, and, for appropriate indications sought
through supplemental BLAs, data summaries may provide marketing application support. For genetically targeted products and variant protein targeted products intended to
address an unmet medical need in one or more patient subgroups with a serious or life threatening rare disease or condition, the FDA may allow a sponsor to rely upon data and
information  previously  developed  by  the  sponsor  or  for  which  the  sponsor  has  a  right  of  reference,  that  was  submitted  previously  to  support  an  approved  application  for  a
product that incorporates or utilizes the same or similar genetically targeted technology or a product that is the same or utilizes the same variant protein targeted drug as the
product that is the subject of the application.

Post-approval clinical trials, sometimes referred to as Phase IV clinical trials, may be conducted or may be required by FDA after initial approval. These clinical trials are used
to gain additional experience from the treatment of patients in the intended therapeutic indication, particularly for long-term safety follow-up.

During all phases of clinical development, regulatory agencies require extensive monitoring and auditing of all clinical activities, clinical data, and clinical trial investigators.
Annual progress reports detailing the results of the clinical trials must be submitted to the FDA

Written IND safety reports must be promptly submitted to the FDA, IRBs, IBCs, and the investigators for serious and unexpected adverse events; any findings from other trials,
in vivo laboratory tests or in vitro testing that suggest a significant risk for human subjects; any clinically important increase in the rate of a serious suspected adverse reaction
over that listed in the protocol or investigator brochure, or other safety information. The sponsor must submit an IND safety report within 15 calendar days after the sponsor
determines  that  the  information  qualifies  for  reporting.  The  sponsor  also  must  notify  the  FDA  of  any  unexpected  fatal  or  life-threatening  suspected  adverse  reaction  within
seven calendar days after the sponsor’s initial receipt of the information.

The FDA, the sponsor or its data safety monitoring board may suspend a clinical trial at any time on various grounds, including a finding that the research subjects or patients
are  being  exposed  to  an  unacceptable  health  risk.  Similarly,  an  IRB  can  suspend  or  terminate  approval  of  a  clinical  trial  at  its  institution  if  the  clinical  trial  is  not  being
conducted in accordance with the IRB’s requirements or if the biologic product candidate has been associated with unexpected serious harm to patients. The FDA or an IRB
may also impose conditions on the conduct of a clinical trial.

Additional regulation for gene therapy clinical trials

In addition to the regulations discussed above, there are a number of additional standards that apply to clinical trials involving the use of gene therapy. The FDA has issued
various guidance documents regarding gene therapies, which outline additional factors that the FDA will consider at each of the above stages of development and relate to,
among  other  things:  the  proper  preclinical  assessment  of  gene  therapies;  the  CMC  information  that  should  be  included  in  an  IND  application;  the  proper  design  of  tests  to
measure product efficacy in support of an IND or BLA application; and long term patient and clinical study subject follow up and reporting requirements. The FDA has also
issued draft guidance specific to the development of gene therapy products for neurodegenerative diseases as such products may face special challenges related to CMCs and
clinical and preclinical development, due to the nature of the products and potential patient population (e.g., children), the heterogeneity of neurodegenerative disorders, the
route of administration, the volume of the product that can be administered, the delivery device, and the study population size.

15

 
 
 
 
 
 
 
 
 
 
Compliance with cGMP requirements

Manufacturers of biologics must comply with applicable cGMP regulations for both clinical and commercial supply. Manufacturers and others involved in the manufacture and
distribution  of  such  products  at  the  commercial  stage  also  must  register  their  establishments  with  the  FDA  and  certain  state  agencies  and  list  the  manufactured  products.
Recently,  the  information  that  must  be  submitted  to  FDA  regarding  manufactured  products  was  expanded  through  the  Coronavirus  Aid,  Relief,  and  Economic  Security,  or
CARES,  Act  to  include  the  volume  of  drugs  produced  during  the  prior  year.  Both  domestic  and  foreign  manufacturing  establishments  must  register  and  provide  additional
information  to  the  FDA  upon  their  initial  participation  in  the  manufacturing  process.  Establishments  may  be  subject  to  periodic,  unannounced  inspections  by  government
authorities  to  ensure  compliance  with  cGMP  requirements  and  other  laws.  Discovery  of  problems  may  result  in  a  government  entity  placing  restrictions  on  a  product,
manufacturer,  or  holder  of  an  approved  BLA,  and  may  extend  to  requiring  withdrawal  of  the  product  from  the  market.  The  FDA  will  not  approve  an  application  unless  it
determines that the manufacturing processes and facilities comply with cGMP requirements and are adequate to assure consistent production of the product within required
specification.

Concurrent with clinical trials, companies usually complete additional preclinical studies and must also develop additional information about the physical characteristics of the
biologic  product  candidate  as  well  as  finalize  a  process  for  manufacturing  the  product  candidate  in  commercial  quantities  in  accordance  with  cGMP  requirements.  To  help
reduce  the  risk  of  the  introduction  of  adventitious  agents  or  of  causing  other  adverse  events  with  the  use  of  biologic  products,  the  PHSA  emphasizes  the  importance  of
manufacturing control for products whose attributes cannot be precisely defined. The manufacturing process must be capable of consistently producing quality batches of the
product candidate and, among other requirements, the sponsor must develop methods for testing the identity, strength, quality, potency and purity of the final biologic product.
Additionally, appropriate packaging must be selected and tested, and stability studies must be conducted to demonstrate that the biologic product candidate does not undergo
unacceptable deterioration over its shelf life.

U.S. review and approval processes

The results of the preclinical tests and clinical trials, together with detailed information relating to the product’s CMC and proposed labeling, among other things, are submitted
to the FDA as part of a BLA requesting approval to market the product for one or more indications.

For gene therapies, selecting patients with applicable genetic defects is a necessary condition to effective treatment. For the therapies we are currently developing, we believe
that diagnoses based on symptoms, in conjunction with existing genetic tests developed and administered by laboratories certified under the Clinical Laboratory Improvement
Amendments (“CLIA”), are sufficient to select appropriate patients and will be permitted by the FDA. For future therapies, however, it may be necessary to use FDA-cleared or
FDA-approved diagnostic tests to select patients or to assure the safe and effective use of therapies in appropriate patients. The FDA refers to such tests as in vitro companion
diagnostic devices and the combination of the in vitro companion diagnostic device and the therapeutic would be considered to be a combination product.

The use of the two products together must be shown to be safe and effective for the proposed intended use and the labeling of the two products must reflect their combined use.
In some cases, the device component may require a separate premarket submission; for example, when the device component is intended for use with multiple drug products.
Sponsors  of  clinical  studies  using  investigational  devices  are  required  to  comply  with  FDA’s  investigational  device  exemption  regulations.  Once  approved  or  cleared,  the
sponsor of the device component submission (or the combination product submission, if both components are covered by one premarket submission) would need to comply
with FDA’s post-market device requirements, including establishment registration, device listing, device labeling, unique device identifier, quality system regulation, medical
device reporting, and reporting of corrections and removals requirements.

FDA has a policy position that, when safe and effective use of a therapeutic product depends on a diagnostic device, the FDA generally will require approval or clearance of the
diagnostic device at the same time that the FDA approves the therapeutic product. The type of premarket submission required for a companion diagnostic device will depend on
the FDA classification of the device. A premarket approval, or PMA, application is required for high risk devices classified as Class III; a 510(k) premarket notification is
required for moderate risk devices classified as Class II; and a de novo request may be used for novel devices not previously classified by FDA that are low or moderate risk.

16

 
 
 
 
 
 
 
 
 
 
FDA may, however, approve a therapeutic product without the concurrent approval or clearance of a diagnostic device when the therapeutic product is intended to treat serious
and life-threatening conditions for which no alternative exists and the FDA determines that the benefits from the use of the drug/biologic outweigh the risks from the lack of an
approved/cleared companion diagnostic. The FDA would also consider whether additional protections, such as risk evaluation and mitigation strategies, or REMS, or post-
approval requirements, are necessary. At this point, it is unclear how the FDA will apply this policy to our gene therapy candidates. Should the FDA deem genetic tests used for
selecting  appropriate  patients  for  our  therapies  to  be  in  vitro  companion  diagnostics  requiring  FDA  clearance  or  approval,  we  may  face  significant  delays  or  obstacles  in
obtaining  approval  for  a  BLA.  In  addition,  under  the  Pediatric  Research  Equity  Act  (“PREA”),  a  BLA  or  supplement  to  a  BLA  must  contain  data  to  assess  the  safety  and
effectiveness of the biologic product candidate for the claimed indications in all relevant pediatric subpopulations and to support dosing and administration for each pediatric
subpopulation for which the product candidate is safe and effective. The FDA may grant deferrals for submission of data or full or partial waivers. Unless otherwise required by
regulation, PREA does not apply to any biologic product candidate for an indication for which orphan designation has been granted.

Under  the  Prescription  Drug  User  Fee  Act  (“PDUFA”),  as  amended,  each  BLA  must  be  accompanied  by  a  substantial  user  fee  that  must  be  paid  at  the  time  of  the  first
submission of the application, even if the application is being submitted on a rolling basis. The FDA adjusts the PDUFA user fees on an annual basis. Fee waivers or reductions
are available in certain circumstances, including a waiver of the application fee for the first application filed by a small business. Additionally, no user fees are assessed on
BLAs for product candidates designated as orphan drugs, unless the product candidate also includes a non-orphan indication.

The FDA reviews a BLA within 60 days of submission to determine if it is substantially complete before the agency accepts it for filing. The FDA may refuse to accept for
filing  any  BLA  that  it  deems  incomplete  or  not  properly  reviewable  at  the  time  of  submission  and  may  request  additional  information.  In  that  event,  the  BLA  must  be
resubmitted with the additional information. The resubmitted application also is subject to review before the FDA accepts it for filing. Once the submission is accepted for
filing, the FDA begins an in-depth, substantive review of the BLA.

The FDA reviews the BLA to determine, among other things, whether the proposed product candidate is safe and potent, or effective, for its intended use, has an acceptable
purity  profile  and  whether  the  product  candidate  is  being  manufactured  in  accordance  with  cGMP  to  assure  and  preserve  the  product  candidate’s  identity,  safety,  strength,
quality, potency, and purity. The FDA may refer applications for novel biologic products or biologic products that present difficult questions of safety or efficacy to an advisory
committee, typically a panel that includes clinicians and other experts, for review, evaluation, and a recommendation as to whether the application should be approved and
under what conditions. The FDA is not bound by the recommendations of an advisory committee, but it considers such recommendations carefully when making decisions.
During  the  product  approval  process,  the  FDA  also  will  determine  whether  a  REMS  is  necessary  to  assure  the  safe  use  of  the  product  candidate.  A  REMS  could  include
medication guides, physician communication plans and elements to assure safe use, such as restricted distribution methods, patient registries, and other risk minimization tools.
If the FDA concludes a REMS is needed, the sponsor of the BLA must submit a proposed REMS; the FDA will not approve the BLA without a REMS, if required.

Before  approving  a  BLA,  the  FDA  will  inspect  the  facilities  at  which  the  product  candidate  is  manufactured.  The  FDA  will  not  approve  the  product  candidate  unless  it
determines that the manufacturing processes and facilities comply with cGMP requirements and are adequate to assure consistent production of the product candidate within
required  specifications.  Additionally,  before  approving  a  BLA,  the  FDA  typically  will  inspect  one  or  more  clinical  sites  to  assure  that  the  clinical  trials  were  conducted  in
compliance with IND trial requirements and GCP requirements.

On  the  basis  of  the  BLA  and  accompanying  information,  including  the  results  of  the  inspection  of  the  manufacturing  facilities,  the  FDA  may  issue  an  approval  letter  or  a
complete response letter. An approval letter authorizes commercial marketing of the biologic product with specific prescribing information for specific indications. A complete
response  letter  (“CRL”)  generally  outlines  the  deficiencies  in  the  submission  and  may  require  substantial  additional  testing  or  information  for  the  FDA  to  reconsider  the
application. If a CRL is issued, the applicant may either: resubmit the marketing application, addressing all of the deficiencies identified in the letter; withdraw the application;
or request an opportunity for a hearing. If those deficiencies have been addressed to the FDA’s satisfaction in a resubmission of the BLA, the FDA will issue an approval letter.

17

 
 
 
 
 
 
 
 
If a product candidate receives regulatory approval, the approval may be significantly limited to specific diseases, patient populations, and dosages or the indications for use
may otherwise be limited. Further, the FDA may require that certain contraindications, warnings, or precautions be included in the product labeling. The FDA also may not
approve  label  statements  that  are  necessary  for  successful  commercialization  and  marketing.  The  FDA  may  impose  restrictions  and  conditions  on  product  distribution,
prescribing or dispensing in the form of a REMS, or otherwise limit the scope of any approval. In addition, the FDA may require post-marketing clinical trials, sometimes
referred to as Phase IV clinical trials, designed to further assess a biologic product’s safety and effectiveness, and testing and surveillance programs to monitor the safety of
approved products that have been commercialized.

The FDA has agreed to specified performance goals in the review of BLAs under the PDUFA. One such goal is to review 90% of standard BLAs in 10 months after the FDA
accepts the BLA for filing, and 90% of priority BLAs in six months, whereupon a review decision is to be made. The FDA does not always meet its PDUFA goal dates for
standard and priority BLAs and its review goals are subject to change from time to time. The review process and the PDUFA goal date may also be extended if new information
is submitted to the application.

Orphan drug designation

Under the Orphan Drug Act, the FDA may designate a biologic product as an “orphan drug” if it is intended to treat a rare disease or condition (generally meaning that it affects
fewer than 200,000 individuals in the United States, or more in cases in which there is no reasonable expectation that the cost of developing and making a biologic product
available in the United States for treatment of the disease or condition will be recovered from sales of the product). Additionally, sponsors must present a plausible hypothesis
for  clinical  superiority  to  obtain  orphan  drug  designation  if  there  is  a  product  already  approved  by  the  FDA  that  is  considered  by  the  FDA  to  be  the  same  as  the  already
approved product and is intended for the same indication. This hypothesis must be demonstrated to obtain orphan exclusivity. Orphan product designation must be requested
before submitting a BLA. After the FDA grants orphan product designation, the identity of the therapeutic agent and its potential orphan use are disclosed publicly by the FDA.
If granted, prior to product approval, orphan drug designation entitles a party to financial incentives such as opportunities for grant funding towards clinical study costs, tax
advantages,  and  certain  user-fee  waivers.  The  tax  advantages,  however,  were  limited  in  the  2017  Tax  Cuts  and  Jobs  Act.  Orphan  product  designation  does  not  shorten  the
duration of the regulatory review and approval process.

If  a  product  with  orphan  status  receives  the  first  FDA  approval  for  the  disease  or  condition  for  which  it  has  such  designation,  the  product  is  entitled  to  orphan  product
exclusivity, meaning that the FDA may not approve any other applications to market the same drug or biologic product for the same indication for seven years, except in limited
circumstances, such as a showing of clinical superiority to the product with orphan exclusivity or if the party holding the exclusivity fails to assure the availability of sufficient
quantities of the drug to meet the needs of patients with the disease or condition for which the drug was designated. FDA has issued a draft guidance document on how the
agency will determine the “sameness” of gene therapy products. Any FDA sameness determinations could impact our ability to receive approval for our product candidates and
to  obtain  or  retain  orphan  drug  exclusivity.  Competitors  additionally  may  receive  approval  of  different  products  for  the  same  indication  for  which  the  orphan  product  has
exclusivity or obtain approval for the same product but for a different indication for which the orphan product has exclusivity. Orphan medicinal product status in the European
Union has similar, but not identical, benefits.

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Expedited development and review programs

The FDA is authorized to expedite the review of BLAs in several ways. Under the Fast Track program, the sponsor of a biologic product candidate may request the FDA to
designate the product for a specific indication as a Fast Track product concurrent with or after the filing of the IND. Biologic products are eligible for Fast Track designation if
they are intended to treat a serious or life-threatening condition and demonstrate the potential to address unmet medical needs for the condition. Fast Track designation applies
to the combination of the product candidate and the specific indication for which it is being studied. In addition to other benefits, such as the ability to have greater interactions
with the FDA, the FDA may initiate review of sections of a Fast Track BLA before the application is complete, a process known as rolling review. This “rolling review” is
available if the applicant provides and the FDA approves a schedule for the remaining information.

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 breakthrough therapy designation, priority review and accelerated approval.

● Breakthrough therapy designation: To qualify for the breakthrough therapy program, product candidates must  be  intended  to  treat  a  serious  or  life-threatening
disease  or  condition  and  preliminary  clinical  evidence  must  indicate  that  such  product  candidates  may  demonstrate  substantial  improvement  on  one  or  more
clinically  significant  endpoints  over  existing  therapies.  The  FDA  will  seek  to  ensure  the  sponsor  of  a  breakthrough  therapy  product  candidate  receives  the
following:  intensive  guidance  on  an  efficient  drug  development  program;  intensive  involvement  of  senior  managers  and  experienced  staff  on  a  proactive,
collaborative, and cross-disciplinary review; and rolling review.

● Priority review: A product candidate is eligible for priority review if it treats a serious condition and, if approved, it would be a significant improvement in the
safety or effectiveness of the treatment, diagnosis or prevention of a serious condition compared to marketed products. The FDA aims to complete its review of
priority review applications within six months as opposed to 10 months for standard review.

● Accelerated  approval:  Drug  or  biologic  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. Accelerated approval means that a product candidate may be approved
on the basis of adequate and well-controlled clinical trials establishing that the product candidate has an effect on a surrogate endpoint that is reasonably likely to
predict a clinical benefit, or on the basis of an effect on a clinical endpoint other than survival or irreversible morbidity or mortality or other clinical benefit, taking
into account the severity, rarity and prevalence of the condition and the availability or lack of alternative treatments. As a condition of approval, the FDA may
require that a sponsor of a drug or biologic product candidate receiving accelerated approval perform adequate and well-controlled post-marketing clinical trials.
In addition, the FDA currently requires as a condition for accelerated approval pre-approval of promotional materials. 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.

Fast Track designation, breakthrough therapy designation, priority review and accelerated approval do not change the standards for approval but may expedite the development
or approval process. Even if a product qualifies for one or more of these programs, the FDA may later decide that the product no longer meets the conditions for qualification or
decide that the time period for FDA review or approval will not be shortened.

Finally,  with  passage  of  the  21st  Century  Cures  Act  (the  “Cures  Act”)  in  December  2016,  Congress  authorized  the  FDA  to  accelerate  review  and  approval  of  products
designated as regenerative advanced therapies. A product is eligible for this designation if it is a regenerative medicine therapy (which may include a cell or gene therapy) that
is  intended  to  treat,  modify,  reverse,  or  cure  a  serious  or  life-threatening  disease  or  condition  and  preliminary  clinical  evidence  indicates  that  the  drug  has  the  potential  to
address unmet medical needs for such disease or condition. The benefits of a regenerative advanced therapy designation include early interactions with the FDA to expedite
development  and  review,  benefits  available  to  breakthrough  therapies,  potential  eligibility  for  priority  review  and  accelerated  approval  based  on  surrogate  or  intermediate
endpoints.

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Post-approval requirements

Rigorous and extensive FDA regulation of biologic products continues after approval, particularly with respect to cGMP requirements. Manufacturers are required to comply
with applicable requirements in the cGMP regulations, including quality control and quality assurance and maintenance of records and documentation. Other post-approval
requirements  applicable  to  biologic  products  include  reporting  of  cGMP  deviations  that  may  affect  the  identity,  potency,  purity  and  overall  safety  of  a  distributed  product,
record-keeping requirements, reporting of adverse events, reporting updated safety and efficacy information, and complying with electronic record and signature requirements.

To  help  reduce  the  increased  risk  of  the  introduction  of  adventitious  agents,  the  PHSA  emphasizes  the  importance  of  manufacturing  controls  for  products  whose  attributes
cannot be precisely defined. The PHSA also provides authority to the FDA to immediately suspend licenses in situations where there exists a danger to public health, to prepare
or procure products in the event of shortages and critical public health needs, and to authorize the creation and enforcement of regulations to prevent the introduction or spread
of communicable diseases in the United States and between states. After a BLA is approved, the product also may be subject to official lot release. If the product is subject to
official lot release by the FDA, the manufacturer submits samples of each lot of product to the FDA, together with a release protocol, showing a summary of the history of
manufacture of the lot and the results of all tests performed on the lot. The FDA also may perform certain confirmatory tests on lots of some products before releasing the lots
for distribution. In addition, the FDA conducts laboratory research related to the regulatory standards on the safety, purity, potency, and effectiveness of biologic products.

There also are continuing annual program user fee requirements for approved products, excluding orphan products. In addition, manufacturers and other entities involved in the
manufacture and distribution of approved therapeutics are subject to periodic announced and unannounced inspections by the FDA and these state agencies for compliance with
cGMP and other requirements, which impose certain procedural and documentation requirements upon the company and third-party manufacturers.

A sponsor also must comply with the FDA’s marketing, advertising, and promotion requirements, such as those related to direct-to-consumer advertising, the prohibition on
promoting products for uses or in patient populations that are not described in the product’s approved labeling (known as “off-label use”), industry-sponsored scientific and
educational activities and promotional activities involving the Internet. A company can make only those claims relating to a product that are approved by the FDA. Physicians,
in their independent professional medical judgment, may prescribe legally available products for unapproved indications that are not described in the product’s labeling and that
differ from those tested and approved by the FDA. Biopharmaceutical companies, however, are required to promote their products only for the approved indications and in
accordance with the provisions of the approved label. The FDA and other agencies actively enforce the laws and regulations prohibiting the promotion of off-label uses, and a
company that is found to have improperly promoted off-label uses may be subject to significant liability, including, but not limited to, criminal and civil penalties under the
FDCA and False Claims Act, exclusion from participation in federal healthcare programs, mandatory compliance programs under corporate integrity agreements, suspension
and debarment from government contracts, and refusal of orders under existing government contracts.

In addition, the distribution of prescription biopharmaceutical samples is subject to the Prescription Drug Marketing Act, or PDMA, which regulates the distribution of samples
at the federal level. Both the PDMA and state laws limit the distribution of prescription biopharmaceutical product. Certain reporting related to samples is also required. Free
trial or starter prescriptions provided through pharmacies are also subject to regulations under the Medicaid Drug Rebate Program and potential liability under anti-kickback
and false claims laws.

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Moreover,  the  enacted  Drug  Quality  and  Security  Act,  or  DQSA,  imposed  obligations  on  sponsors  of  biopharmaceutical  products  related  to  product  tracking  and  tracing.
Among the requirements of this legislation, sponsors are required to provide certain information regarding the products to individuals and entities to which product ownership
is transferred, are required to label products with a product identifier, and are required to keep certain records regarding the product. The transfer of information to subsequent
product owners by sponsors is also required to be done electronically. Sponsors must also verify that purchasers of the sponsors’ products are appropriately licensed. Further,
under this legislation manufacturers have product investigation, quarantine, disposition, and notification responsibilities related to counterfeit, diverted, stolen, and intentionally
adulterated products that would result in serious adverse health consequences or death to humans, as well as products that are the subject of fraudulent transactions or which are
otherwise unfit for distribution such that they would be reasonably likely to result in serious health consequences or death. Similar requirements additionally are and will be
imposed through this legislation on other companies within the biopharmaceutical product supply chain, such as distributors and dispensers, as well as certain sponsor licensees
and affiliates.

Discovery of previously unknown problems or the failure to comply with the applicable regulatory requirements may result in restrictions on the marketing of a product or
withdrawal of the product from the market as well as possible civil or criminal sanctions. Further, should new safety information arise, additional testing or FDA notification
may be required. In addition, changes to the manufacturing process or facility generally require prior FDA approval before being implemented and other types of changes to the
approved product, such as adding new indications and additional labeling claims, are also subject to further FDA review and approval.

Failure to comply with the applicable U.S. requirements at any time during the product development process, approval process or after approval, may subject an applicant or
manufacturer to administrative or judicial civil or criminal actions and adverse publicity. These actions could include refusal to approve pending applications or supplemental
applications,  withdrawal  of  an  approval,  clinical  hold,  suspension  or  termination  of  clinical  trial  by  an  IRB,  warning  or  untitled  letters,  product  recalls,  adverse  publicity,
product seizures, total or partial suspension of production or distribution, injunctions, fines or other monetary penalties, refusals of government contracts, mandated corrective
advertising  or  communications  to  healthcare  professionals  or  patients,  exclusion  from  participation  in  federal  and  state  healthcare  programs,  debarment,  restitution,
disgorgement of profits or other civil or criminal penalties.

U.S. patent term restoration and marketing exclusivity

Depending upon the timing, duration, and specifics of FDA approval of product candidates, some of a sponsor’s U.S. patents may be eligible for limited patent term extension
under the Drug Price Competition and Patent Term Restoration Act of 1984. The Hatch-Waxman Amendments permit a patent restoration term of up to five years to account for
patent term lost during the FDA regulatory review process. However, patent term restoration cannot extend the remaining term of a patent beyond a total of 14 years from the
product’s approval date. The patent term restoration period generally is one-half the time between the effective date of an IND and the submission date of a BLA plus the time
between the submission date of a BLA and the approval of that application. This period may also be reduced by any time that the applicant did not act with due diligence. Only
one patent applicable to an approved biologic product is eligible for the extension and the application for the extension must be submitted prior to the expiration of the patent.
The United States Patent and Trademark Office (“USPTO”), in consultation with the FDA, reviews and approves the application for any patent term extension or restoration.

Pediatric exclusivity

Pediatric exclusivity is a type of non-patent marketing exclusivity in the United States that, if granted, provides for the attachment of an additional six months of marketing
protection to the term of any existing regulatory exclusivity, including the non-patent and orphan exclusivity. This six-month exclusivity may be granted if a BLA sponsor
submits pediatric data that fairly responds to a written request from the FDA for such data. The data do not need to show the product to be effective in the pediatric population
studied; rather, if the clinical trial is deemed to fairly respond to the FDA’s request, the additional protection is granted. If reports of requested pediatric studies are submitted to,
and accepted by, the FDA within the statutory time limits, whatever statutory or regulatory periods of exclusivity or patent protection that cover the product are extended by six
months. This is not a patent term extension, but it effectively extends the regulatory period during which the FDA cannot accept or approve a biosimilar application.

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Biosimilars and exclusivity

The Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act (“PPACA”), created an abbreviated approval pathway for
biologic products shown to be similar to, or interchangeable with, an FDA-licensed reference biologic product, referred to as biosimilars. For the FDA to approve a biosimilar
product, it must find that the biosimilar product is highly similar to the reference product notwithstanding minor differences in clinically inactive components, and that there are
no clinically meaningful differences between the reference product and proposed biosimilar product. Interchangeability requires that a product is biosimilar to the reference
product and the product must demonstrate that it can be expected to produce the same clinical results as the reference product and, for products administered multiple times, the
biologic  and  the  reference  biologic  may  be  switched  after  one  has  been  previously  administered  without  increasing  safety  risks  or  risks  of  diminished  efficacy  relative  to
exclusive use of the reference biologic.

A reference biologic is granted 12 years of exclusivity from the time of first licensure of the reference product. An application for a biosimilar product may not be submitted to
the  FDA  until  four  years  following  approval  of  the  reference  product,  and  it  may  not  be  approved  until  12  years  thereafter.  These  exclusivity  provisions  only  apply  to
biosimilars—companies that rely on their own data and file a full BLA may be approved earlier than 12 years. Moreover, certain changes and supplements to an approved BLA,
and  subsequent  applications  filed  by  the  same  sponsor,  manufacturer,  licensor,  predecessor  in  interest,  or  other  related  entity  do  not  qualify  for  the  twelve-year  exclusivity
period.  The  PHSA  also  includes  provisions  to  protect  reference  products  that  have  patent  protection.  The  biosimilar  product  sponsor  and  reference  product  sponsor  may
exchange  certain  patent  and  product  information  for  the  purpose  of  determining  whether  there  should  be  a  legal  patent  challenge.  Based  on  the  outcome  of  negotiations
surrounding the exchanged information, the reference product sponsor may bring a patent infringement suit and injunction proceedings against the biosimilar product sponsor.
The biosimilar applicant may also be able to bring an action for declaratory judgment concerning the patent.

In  an  effort  to  increase  competition  in  the  biologic  product  marketplace,  Congress,  the  executive  branch,  and  FDA  have  taken  certain  legislative  and  regulatory  steps.  For
example, in 2020 FDA finalized a guidance to facilitate product importation. Moreover, the 2020 Further Consolidated Appropriations Act included provisions requiring that
sponsors of approved biologic products, including those subject to REMS, provide samples of the approved products to persons developing biosimilar products within specified
timeframes, in sufficient quantities, and on commercially reasonable market-based terms. Failure to do so can subject the approved product sponsor to civil actions, penalties,
and responsibility for attorney’s fees and costs of the civil action. This same bill also includes provisions with respect to shared and separate REMS programs for reference and
generic drug products.

Rare Pediatric Disease Voucher Program

Under the Rare Pediatric Disease Voucher Program, FDA can award priority review vouchers to sponsors of rare pediatric disease products where the product is intended to
treat serious or life-threatening diseases that primarily affect individuals up to age 18. To qualify, the product must contain no active ingredient (including any ester or salt of the
active  ingredient)  that  has  been  previously  approved  by  FDA.  The  application  must  also  meet  other  qualifying  criteria,  including  eligibility  for  FDA  priority  review.  If  the
necessary qualifying criteria are met, upon a sponsor’s request and product approval, FDA may award a priority review voucher. This voucher may be transferred and may be
redeemed to receive priority review of a subsequent marketing application for a different product. Use of a priority review voucher is subject to an FDA user fee. As these
vouchers  are  transferable,  sponsors  may  sell  these  vouchers  for  substantial  sums  of  money.  Vouchers  may,  however,  be  revoked  by  FDA  under  certain  circumstances  and
sponsors of approved rare pediatric disease products must submit certain reports to FDA. To take advantage of the benefits of this program, the product must be designated by
FDA for a rare pediatric disease no later than September 30, 2022, and approved no later than September 30, 2026, unless the law is reauthorized by Congress.

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Government regulation outside of the United States

In  addition  to  regulations  in  the  United  States,  sponsors  are  subject  to  a  variety  of  regulations  in  other  jurisdictions  governing,  among  other  things,  clinical  trials  and  any
commercial sales and distribution of biologic products. Because biologically-sourced raw materials are subject to unique contamination risks, their use may be restricted in
some countries.

Whether  or  not  a  sponsor  obtains  FDA  approval  for  a  product,  a  sponsor  must  obtain  the  requisite  approvals  from  regulatory  authorities  in  foreign  countries  prior  to  the
commencement  of  clinical  trials  or  marketing  of  the  product  in  those  countries.  Certain  countries  outside  of  the  United  States  have  a  similar  process  that  requires  the
submission of a clinical trial application, much like the IND, prior to the commencement of human clinical trials. In the European Union, for example, a request for a Clinical
Trial Authorization (“CTA”) must be submitted to the competent regulatory authorities and the competent Ethics Committees in the European Union Member States in which
the clinical trial takes place, much like the FDA and the IRB, respectively. Once the CTA request is approved in accordance with the European Union and the European Union
Member State’s requirements, clinical trial development may proceed.

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

Failure to comply with applicable foreign regulatory requirements may result in, among other things, fines, suspension, variation or withdrawal of regulatory approvals, product
recalls, seizure of products, operating restrictions, and criminal prosecution.

European Union regulation and exclusivity

To obtain regulatory approval of an investigational biologic product under European Union regulatory systems, applicants must submit a marketing authorization application
(“MAA”).  The  grant  of  marketing  authorization  in  the  European  Union  for  products  containing  viable  human  tissues  or  cells  such  as  gene  therapy  medicinal  products  is
governed  by  Regulation  1394/2007/EC  on  advanced  therapy  medicinal  products,  read  in  combination  with  Directive  2001/83/EC  of  the  European  Parliament  and  of  the
Council, commonly known as the Community code on medicinal products and Regulation (EC) 726/2004 of the European Parliament and of the Council laying down Union
procedures for the authorization and supervision of medicinal products for human and veterinary use and establishing a European Medicines Agency. Regulation 1394/2007/EC
lays  down  specific  rules  concerning  the  authorization,  supervision  and  pharmacovigilance  of  gene  therapy  medicinal  products,  somatic  cell  therapy  medicinal  products  and
tissue  engineered  products.  Manufacturers  of  advanced  therapy  medicinal  products  must  demonstrate  the  quality,  safety  and  efficacy  of  their  products  to  the  European
Medicines  Agency  (“EMA”)  which  provides  an  opinion  regarding  the  application  for  marketing  authorization.  The  European  Commission  grants  or  refuses  marketing
authorization in light of the opinion delivered by EMA.

23

 
 
 
 
 
 
 
 
 
Innovative  medicinal  products  are  authorized  in  the  European  Union  based  on  a  full  marketing  authorization  application  (as  opposed  to  an  application  for  marketing
authorization  that  relies  on  data  in  the  marketing  authorization  dossier  for  another,  previously  approved  medicinal  product).  Applications  for  marketing  authorization  for
innovative medicinal products must contain the results of pharmaceutical tests, preclinical tests and clinical trials conducted with the medicinal product for which marketing
authorization is sought. Innovative medicinal products for which marketing authorization is granted are entitled to eight years of data exclusivity. During this period, applicants
for approval of generics or biosimilars of these innovative products cannot make an MMA relying on data contained in the marketing authorization dossier submitted for the
innovative medicinal product to support their application and such generics or biosimilars cannot be placed on the market until 10 years after the first EU marketing of the
reference product. The overall 10-year period will be extended to a maximum of 11 years if, during the first eight years of those 10 years, the marketing authorization holder
obtains an authorization for one or more new therapeutic indications which, during the scientific evaluation prior to their authorization, are held to bring a significant clinical
benefit in comparison with existing therapies. Even if a compound is considered to be a new chemical entity and the innovator is able to gain the period of data exclusivity,
another company, nevertheless, could also market another competing medicinal product for the same therapeutic indication if such company obtained marketing authorization
based on an MAA with a complete independent data package of pharmaceutical tests, preclinical tests and clinical trials.

Products receiving orphan designation in the European Union can receive 10 years of market exclusivity. During this 10-year period, the competent authorities of the European
Union  Member  States  and  European  Commission  may  not  accept  applications  or  grant  marketing  authorization  for  other  similar  medicinal  product  for  the  same  orphan
indication. There are, however, three exceptions to this principle. Marketing authorization may be granted to a similar medicinal product for the same orphan indication if:

·

·
·

The second applicant can establish in its application that its medicinal product, although similar to the orphan medicinal product already authorized, is safer, more
effective or otherwise clinically superior;
The holder of the marketing authorization for the original orphan medicinal product consents to a second orphan medicinal product application; or
The holder of the marketing authorization for the original orphan medicinal product cannot supply sufficient quantities of orphan medicinal product.

An orphan product can also obtain an additional two years of market exclusivity in the European Union for the conduct of pediatric trials. The 10-year market exclusivity may
be  reduced  to  six  years  if,  at  the  end  of  the  fifth  year,  it  is  established  that  the  product  no  longer  meets  the  criteria  for  orphan  designation;  for  example,  if  the  product  is
sufficiently profitable and no longer justifies the maintenance of market exclusivity or if the manufacturer cannot produce sufficient quantities to supply the orphan population.

The criteria for designating an “orphan medicinal product” in the European Union are similar, in principle, to those in the United States. Orphan medicinal products are eligible
for  financial  incentives  such  as  reduction  of  fees  or  fee  waivers.  The  application  for  orphan  medicinal  product  designation  must  be  submitted  before  the  application  for
marketing authorization. Orphan medicinal product designation does not convey any advantage in, or shorten the duration of, the regulatory review and approval process.

In  April  2014,  the  EU  adopted  a  new  Clinical  Trials  Regulation  (EU)  No  536/2014  (the  “Clinical  Trials  Regulation”),  which  is  set  to  replace  the  current  Clinical  Trials
Directive 2001/20/EC (the “Clinical Trials Directive”). The new Clinical Trials Regulation is still pending but implementation is currently expected in December 2021. Until
the  Clinical  Trials  Regulation  becomes  applicable,  all  clinical  trials  performed  in  the  European  Union  are  required  to  be  conducted  in  accordance  with  the  Clinical  Trials
Directive, which will be repealed on the day of entry into application of the Clinical Trial Regulation. It will however still apply three years from that day to (i) clinical trials
applications submitted before the entry into application and (ii) clinical trials applications submitted within one year after the entry into application if the sponsor opted for the
previous system. The Clinical Trial Regulation will overhaul the current system of approvals for clinical trials in the EU. Specifically, the legislation, which will be directly
applicable in all member states, aims at simplifying and streamlining the approval of clinical trials in the EU. For instance, the legislation provides for a streamlined application
procedure via a single-entry point and strictly defined deadlines for the assessment of clinical trial applications.

In the European Union there are also broadly equivalent regimes for the other issues addressed in relation to US regulation including GMP requirements, accelerated access
(generally through so-called Conditional Marketing Authorizations), pediatric requirements and incentives and patent terms restoration (supplementary protection certificates)

24

 
 
 
 
 
 
 
 
 
Other Healthcare Laws and Regulations

Healthcare providers, physicians and third-party payors play a primary role in the recommendation and use of pharmaceutical products that are granted marketing approval.
Arrangements  with  third-party  payors,  existing  or  potential  customers  and  referral  sources  are  subject  to  broadly  applicable  fraud  and  abuse  and  other  healthcare  laws  and
regulations, and these laws and regulations may constrain the business or financial arrangements and relationships through which manufacturers market, sell and distribute the
products for which they obtain marketing approval. Such restrictions under applicable federal and state healthcare laws and regulations include the following:

·

·

·

the federal Anti-Kickback Statute, which prohibits, among other things, persons, and entities from knowingly and willfully soliciting, receiving, offering or paying
remuneration, directly or indirectly, in cash or kind, in exchange for, or to induce, either the referral of an individual for, or the purchase, order or recommendation
of, any good or service for which payment may be made under federal healthcare programs such as the Medicare and Medicaid programs. This statute has been
interpreted to apply to arrangements between pharmaceutical manufacturers, on the one hand, and prescribers, purchasers, and formulary managers on the other.
Although a number of statutory exemptions and regulatory safe harbors exist to protect certain common activities from falling under the Anti-Kickback Statute,
these  are  narrow,  and  practices  may  not  fall  under  the  applicable  safe  harbors  and  exemptions.  For  example,  HHS  recently  promulgated  a  regulation  that  is
effective in two phases. First, the regulation excludes from the definition of “remuneration” limited categories of (a) PBM rebates or other reductions in price to a
plan  sponsor  under  Medicare  Part  D  or  a  Medicaid  Managed  Care  Organization  plan  reflected  in  point-of  sale  reductions  in  price  and  (b)  PBM  service  fees.
Second, effective January 1, 2023, the regulation expressly provides that rebates to plan sponsors under Medicare Part D either directly to the plan sponsor under
Medicare Part D, or indirectly through a pharmacy benefit manager will not be protected under the anti-kickback discount safe harbor. The PPACA amended the
intent requirement of the federal Anti-Kickback Statute. A person or entity no longer needs to have actual knowledge of this statute or specific intent to violate it
in order to commit a violation;
the federal false claims and civil monetary penalties laws, including the civil False Claims Act (the “FCA”), which prohibit, among other things, individuals, or
entities  from  knowingly  presenting,  or  causing  to  be  presented,  claims  for  payment  from  Medicare,  Medicaid  or  other  third-party  payors  that  are  false  or
fraudulent,  or  making  a  false  statement  to  avoid,  decrease,  or  conceal  an  obligation  to  pay  money  to  the  federal  government.  Certain  marketing  practices,
including  off-label  promotion,  also  may  implicate  the  FCA.  FCA  claims  may  be  pursued  by  whistleblowers  through  qui  tam  actions,  even  if  the  government
declines to intervene and civil liability may be predicated on reckless disregard for the truth. The PPACA also codified case law that a claim including items or
services resulting from a violation of the federal Anti-Kickback Statute constitutes a false or fraudulent claim for purposes of the FCA. Separately, the criminal
federal False Claims Act imposes criminal fines or imprisonment against individuals or entities who make or present a claim to the government knowing such
claim to be false, fictitious, or fraudulent;
the  federal  Physician  Payments  Sunshine  Act,  which  requires  certain  manufacturers  of  drugs,  devices,  biologics  and  medical  supplies  for  which  payment  is
available  under  Medicare,  Medicaid,  or  the  Children’s  Health  Insurance  Program,  with  specific  exceptions,  to  report  annually  to  the  Centers  for  Medicare  &
Medicaid Services (“CMS”), information related to payments and other transfers of value made to or at the request of covered recipients, such as, but not limited
to,  physicians,  physician  assistants,  nurse  practitioners,  clinical  nurse  specialists,  certified  registered  nurse  anesthetists  and  teaching  hospitals,  as  well  as
ownership and investment interests held by physicians and their immediate family. Payments made to physicians and certain research institutions for clinical trials
are included within the ambit of this law. Reported information is made publicly available in searchable formats by CMS;

25

 
 
 
 
 
·

·

additional federal false statements and fraud and abuse statutes prohibit knowingly and willfully executing, or attempting to execute, a scheme to defraud or to
obtain,  by  means  of  false  or  fraudulent  pretenses,  representations  or  promises,  any  of  the  money  or  property  owned  by,  or  under  the  custody  or  control  of,  a
healthcare benefit program, regardless of whether the payor is public or private, in connection with the delivery or payment for health care benefits, knowingly
and willfully embezzling or stealing from a health care benefit program, willfully obstructing a criminal investigation of a health care offense and knowingly and
willfully falsifying, concealing, or covering up by any trick or device a material fact or making any materially false statements in connection with the delivery of,
or payment for, healthcare benefits, items, or services relating to healthcare matters. PPACA amended the intent requirement of certain of these criminal statutes
under HIPAA so that a person or entity no longer needs to have actual knowledge of the statute, or the specific intent to violate it, to have committed a violation;
and
state and foreign law equivalents of each of the above federal laws, such as anti-kickback and false claims laws which may apply to items or services reimbursed
by any third-party payor, including commercial insurers; state laws that require pharmaceutical companies to comply with the pharmaceutical industry’s voluntary
compliance  guidelines  and  the  relevant  compliance  guidance  promulgated  by  the  federal  government  or  otherwise  restrict  payments  that  may  be  made  to
healthcare providers and other potential referral sources; state laws that require drug manufacturers to report information related to payments and other transfers of
value to physicians and other healthcare providers or marketing expenditures; and European Union and state laws governing the privacy and security of health
information in certain circumstances, many of which differ from each other in significant ways, may be stricter than those applicable in the US and may not have
the same effect, thus complicating compliance efforts.

Violation  of  the  laws  described  above  or  any  other  governmental  laws  and  regulations  may  result  in  penalties,  including  civil  and  criminal  penalties,  damages,  fines,  the
curtailment or restructuring of operations, the exclusion from participation in federal and state healthcare programs, debarment from government contracting or refusal of orders
under existing contracts, corporate integrity agreements or consent decrees, disgorgement, contractual damages, reputational harm, diminished profits and future earnings, and
imprisonment. Furthermore, efforts to ensure that business activities and business arrangements comply with applicable healthcare laws and regulations can be costly.

26

 
 
 
 
Data Privacy and Security

● HIPAA, as  amended  by  the  Health  Information  Technology  for  Economic  and  Clinical  Health  Act  of  2009,  or  HITECH  Act,  and  similar  state  laws  impose
obligations on certain entities with respect to safeguarding the privacy, security and transmission of protected health information. HIPAA’s security and certain
privacy standards are directly applicable to persons or organizations of covered entities, other than members of the covered entity’s workforce, that create, receive,
maintain or transmit protected health information on behalf of a covered entity for a function or activity regulated by HIPAA. The HITECH Act strengthened the
civil and criminal penalties that may be imposed against covered entities, business associates and individuals, 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, other federal and state laws, such as the California Consumer Privacy Act, may regulate the privacy and security of information that we
maintain, many of which may differ from each other in significant ways and may not be preempted by HIPAA; and

● the General European Data Protection Regulation, which became applicable May 25, 2018, harmonizes data privacy laws across Europe. This Regulation lays
down rules relating to the protection with regard to the processing and transfer of personal data as well as an individual’s right to the protection of personal data,
including medical information and clinical trial related data. In addition, there are rules relating to the export of personal data outside the European Union and in
particular there are certain challenges in relation to export to the United States.

Coverage and Reimbursement

Significant uncertainty exists as to the coverage and reimbursement status of any products for which we may obtain regulatory approval. In the United States, sales of any
product candidates for which regulatory approval for commercial sale is obtained will depend in part on the availability of coverage and adequate reimbursement from third-
party payors. Third-party payors include government authorities and health programs in the United States such as Medicare and Medicaid, managed care providers, private
health  insurers  and  other  organizations.  These  third-party  payors  are  increasingly  reducing  reimbursements  for  medical  products  and  services. The  process  for  determining
whether a payor will provide coverage for a drug product may be separate from the process for setting the reimbursement rate that the payor will pay for the drug product.
Third-party payors may limit coverage to specific drug products on an approved list, or formulary, which might not include all FDA-approved drugs for a particular indication.
Additionally, the containment of healthcare costs has become a priority of federal and state governments, and the prices of drugs have been a focus in this effort. The U.S.
government,  state  legislatures  and  foreign  governments  have  shown  significant  interest  in  implementing  cost-containment  programs,  including  price  controls,  required
disclosures  of  pricing  and  sensitive  cost  data,  requirement  for  payment  of  manufacturer  rebates  and  negotiation  of  supplemental  rebates,  restrictions  on  reimbursement  and
requirements  for  substitution  of  generic  products.  Coverage  policies  and  third-party  reimbursement  rates  may  change  at  any  time.  Even  if  favorable  coverage  and
reimbursement  status  is  attained  for  one  or  more  products  for  which  we  receive  regulatory  approval,  less  favorable  coverage  policies  and  reimbursement  rates  may  be
implemented in the future.

In the EU, pricing and reimbursement schemes vary widely from country to country. Some countries provide that products may be marketed only after a reimbursement price
has been agreed. Some countries may require the completion of additional studies as part of health technology assessment that compare the cost-effectiveness of a particular
product candidate to currently available therapies. EU member states may approve a specific price for a product, or it may instead adopt a system of direct or indirect controls
on  the  profitability  of  the  company  placing  the  product  on  the  market.  Other  member  states  allow  companies  to  fix  their  own  prices  for  products  but  monitor  and  control
company profits. The downward pressure on health care costs has become intense. As a result, increasingly high barriers are being erected to the entry of new products. In
addition,  in  some  countries,  cross-border  imports  from  low-priced  markets  exert  competitive  pressure  that  may  reduce  pricing  within  a  country.  Any  country  that  has  price
controls or reimbursement limitations may not allow favorable reimbursement and pricing arrangements.

27

 
 
 
 
 
 
 
Health Reform

The United States and some foreign jurisdictions are considering or have enacted a number of reform proposals to change the healthcare system. There is significant interest in
promoting changes in healthcare systems with the stated goals of containing healthcare costs, improving quality, or expanding access. In the United States, the pharmaceutical
industry has been a particular focus of these efforts. For example, healthcare reform measures under the Affordable Care Act included increased Medicaid rebates, expanded the
340B drug discount program, and changes requiring manufacturer discounts currently set at 70 percent on Part D utilization in the Part D coverage gap or “donut hole” and
multiple provisions that could affect the profitability of our drug products. There is continuing development of value-based pricing and reimbursement models. Moreover, on
November 27, 2020, CMS issued an interim final rule implementing a Most Favored Nation payment model under which reimbursement for certain Medicare Part B drugs and
biologicals  will  be  based  on  a  price  that  reflects  the  lowest  per  capita  Gross  Domestic  Product-adjusted  (GDP-adjusted)  price  of  any  non-U.S.  member  country  of  the
Organization  for  Economic  Co-operation  and  Development  (OECD)  with  a  GDP  per  capita  that  is  at  least  sixty  percent  of  the  U.S.  GDP  per  capita.  Current  and  future
healthcare  reform  measures  may  significantly  affect  our  sale  of  any  products,  and  we  continue  to  face  major  uncertainty  due  to  the  status  of  major  legislative  initiatives
surrounding healthcare reform.

Additional Regulation

In  addition  to  the  foregoing,  state  and  federal  laws  regarding  environmental  protection  and  hazardous  substances,  including  the  Occupational  Safety  and  Health  Act,  the
Resource Conservation and Recovery Act and the Toxic Substances Control Act, affect our business. These and other laws govern the use, handling and disposal of various
biologic and chemical substances used in, and wastes generated by, operations. If our operations result in contamination of the environment or expose individuals to hazardous
substances, we could be liable for damages and governmental fines. Equivalent laws have been adopted in other countries that impose similar obligations.

U.S. Foreign Corrupt Practices Act

The  U.S.  Foreign  Corrupt  Practices  Act  (“FCPA”),  prohibits  U.S.  corporations  and  individuals  from  engaging  in  certain  activities  to  obtain  or  retain  business  abroad  or  to
influence a person working in an official capacity. It is illegal to pay, offer to pay or authorize the payment of anything of value to any foreign government official, government
staff member, political party, or political candidate in an attempt to obtain or retain business or to otherwise influence a person working in an official capacity. The scope of the
FCPA  includes  interactions  with  certain  healthcare  professionals  in  many  countries.  Equivalent  laws  have  been  adopted  in  other  foreign  countries  that  impose  similar
obligations.

Competition

Companies  that  are  currently  engaged  in  gene  therapy  or  companies  not  yet  focused  on  developing  gene  and  cell  therapies  could  at  any  time  decide  to  develop  therapies
relevant to our business. Many of our competitors, either alone or with their strategic partners, may have substantially greater financial, technical, and human resources than we
do and may have significantly greater experience in the discovery and development of product candidates, obtaining FDA and other regulatory approvals of product candidates
and  commercializing  those  product  candidates.  Accordingly,  our  competitors  may  be  more  successful  than  us  in  obtaining  approval  for  product  candidates  and  achieving
widespread  market  acceptance.  Our  competitors’  product  candidates  may  be  more  effective,  or  more  effectively  marketed  and  sold,  than  any  product  candidate  we  may
commercialize  and  may  render  our  treatments  obsolete  or  non-competitive  before  we  can  recover  the  expenses  of  developing  and  commercializing  any  of  our  product
candidates.

Mergers and acquisitions in the biotechnology and pharmaceutical industries may result in even more resources being concentrated among a smaller number of our competitors.
These  competitors  also  may  compete  with  us  in  recruiting  and  retaining  qualified  scientific  and  management  personnel  and  establishing  clinical  trial  sites  and  subject
registration for clinical trials, as well as in acquiring technologies complementary to, or necessary for, our programs. Smaller or early-stage companies may also prove to be
significant competitors, particularly through collaborative arrangements with large and established companies.

28

 
 
 
 
 
 
 
 
 
 
 
We  anticipate  facing  intense  and  increasing  competition  as  new  product  candidates  enter  the  market  and  advanced  technologies  become  available.  We  expect  any  product
candidates  that  we  develop  and  commercialize  to  compete  on  the  basis  of,  among  other  things,  efficacy,  safety,  convenience  of  administration  and  delivery,  price,  and  the
availability of reimbursement from government and other third-party payors.

Our commercial opportunity could be reduced or eliminated if our competitors develop and commercialize products that are safer, more effective, have fewer or less severe side
effects, are more convenient or are less expensive than any products that we may develop. Our competitors also may obtain FDA or other regulatory approval for their product
candidates  more  rapidly  than  we  may  obtain  approval  for  ours,  which  could  result  in  our  competitors  establishing  a  strong  market  position  before  we  are  able  to  enter  the
market.

Corporate Information

Our principal executive office is located at 1330 Avenue of the Americas, 33rd Floor, New York, NY 10019. Our telephone number in New York is (646) 813-4701. We also
have manufacturing and laboratory facilities and administrative offices in Cleveland, Ohio and office facilities in Madrid, Spain.

We were incorporated in Wyoming in 1974 as Chemex Corporation, and in 1983 we changed our name to Chemex Pharmaceuticals, Inc. We changed our state of incorporation
from  Wyoming  to  Delaware  on  June  30,  1989.  In  1996  we  merged  with  Access  Pharmaceuticals,  Inc.,  a  private  Texas  corporation,  and  changed  our  name  to  Access
Pharmaceuticals, Inc. On October 24, 2014 we changed our name to PlasmaTech Biopharmaceuticals, Inc. On May 15, 2015 we acquired Abeona Therapeutics LLC and on
June 19, 2015 we changed our name to Abeona Therapeutics Inc.

Suppliers

Some  materials  used  by  us  are  specialized.  We  obtain  materials  from  several  suppliers  based  in  different  countries  around  the  world.  If  materials  are  unavailable  from  one
supplier, we generally have alternate suppliers available.

Human Capital Resources

As a clinical-stage biopharmaceutical company developing gene and cell therapies for life-threatening rare genetic diseases, we seek to attract, hire, develop and retain qualified
and  highly  skilled  personnel  with  experience  in  areas  such  as  research  and  development  and  manufacturing  operations.  We  compete  for  such  personnel  with  numerous
pharmaceutical and chemical companies, specialized biotechnology firms and universities. We strive to support our employees’ well-being through a transparent, inclusive, and
collaborative culture and by providing them with the training, support, and resources to help them succeed professionally.

As of March 15, 2021, we had 76 full-time employees. We have never experienced employment-related work stoppages and believe that we maintain good relations with our
personnel. In addition, to complement our internal expertise, we have contracts with scientific consultants, contract research organizations and university research laboratories
that specialize in various aspects of drug development including clinical development, regulatory affairs, toxicology, process scale-up and preclinical testing.

Web Availability

We make available free of charge through our website, www.abeonatherapeutics.com, our annual reports on Form 10-K and other reports that we file with the Securities and
Exchange  Commission  (“SEC”)  as  well  as  certain  of  our  corporate  governance  policies,  including  the  charters  for  the  audit,  compensation  and  nominating  and  corporate
governance committees of the Board of Directors (the “Board”) and our code of ethics, corporate governance guidelines and whistleblower policy. We will also provide to any
person  without  charge,  upon  request,  a  copy  of  any  of  the  foregoing  materials.  Any  such  request  must  be  made  in  writing  to  us  at:  Abeona  Therapeutics  Inc.  c/o  Investor
Relations, 1330 Avenue of the Americas, 33rd Floor, New York, NY 10019. The SEC’s website, www.sec.gov, contains reports, proxy statements, and other information that we
file electronically with the SEC. The content on any website referred to in this Form 10-K is not incorporated by reference in this Form 10-K unless expressly noted.

29

 
 
 
 
 
 
 
 
 
 
 
 
 
 
ITEM 1A. RISK FACTORS

Our  business,  financial  condition,  financial  results,  and  future  growth  prospects  are  subject  to  a  number  of  risks  and  uncertainties,  including  those  set  forth  below.  The
occurrence of any of the following risks could have a material adverse effect on our business, financial condition, financial results, and future growth prospects. Additional
risks  and  uncertainties  that  are  not  currently  known  to  us  or  that  we  do  not  currently  believe  to  be  material  may  also  negatively  affect  our  business,  financial  condition,
financial results, and future growth prospects.

Our business is subject to numerous risks and uncertainties, including those described in Item 1A “Risk Factors.” These risks include, but are not limited to the following:

RISK FACTOR SUMMARY

● Our gene  and  cell  therapy  product  candidates  are  based  on  proprietary  methodologies,  which  makes  it  difficult  to  predict  the  time  and  cost  of  product  candidate
development and regulatory approval. Additionally, regulatory requirements governing gene and cell therapy products have evolved and may continue to change in the
future.

● We may encounter substantial delays in our clinical studies or we may fail to demonstrate safety and efficacy to the satisfaction of applicable regulatory authorities.

Additionally, we may find it difficult to enroll patients in our clinical studies, which could delay or prevent clinical studies of our product candidates.

● We have received and may apply for additional designations such as breakthrough therapy designation, RMAT designation, fast track designation, and rare pediatric
disease designation from the FDA intended to facilitate or encourage product candidate development. We may not receive any such designations or be able to maintain
them. Moreover, any such designations may not lead to faster development or regulatory review or approval and it does not increase the likelihood that our product
candidates will receive marketing approval.

● Certain of our product candidates have received orphan drug designation from the FDA, there is no guarantee that we will be able to maintain this designation, receive

this designation for any of our other product candidates, or receive or maintain any corresponding benefits, including periods of exclusivity.

● Even if we obtain regulatory approval for a product candidate, our products will remain subject to regulatory scrutiny.
● The COVID-19 pandemic and efforts to reduce its spread has affected our operations and significantly impacted worldwide economic conditions, and could continue

to have a material effect on our operations, business, and financial condition.

● We could  experience  production  problems  in  our  manufacturing  facilities  that  result  in  delays  in  our  development  or  commercialization  programs.  We  might  also
experience  delays  in  manufacturing  if  any  of  our  vendors,  contract  laboratories  or  suppliers  are  found  to  be  out  of  compliance  with  current  Good  Manufacturing
Practice.

● If we fail to comply with applicable regulations, the relevant regulatory authority may require remedial measures that may be costly or time-consuming to implement

and that may include the suspension of a clinical trial or commercial sales or the closure of a manufacturing facility.

● We expect  to  rely  on  third  parties,  and  these  third  parties  may  not  perform  satisfactorily.  Additionally,  our  reliance  on  third  parties  requires  us  to  share  our  trade

secrets, which increases the possibility that a competitor will discover them or that our trade secrets will be misappropriated.

● Our drug candidates are subject to the risks of failure inherent in the development of pharmaceutical products based on new technologies, and our failure to develop

safe and commercially viable drugs would severely limit our ability to become profitable or to achieve significant revenues.

● We may be unable to successfully develop, market, or commercialize our products or our product candidates without establishing new relationships and maintaining
current relationships and our ability to successfully commercialize, and market our product candidates could be limited if a number of these existing relationships are
terminated.

30

 
 
 
 
 
 
 
● We may incur substantial product liability expenses due to the use or misuse of our products for which we may be unable to obtain insurance coverage.
● Our ability to successfully develop and commercialize our drug candidates will substantially depend upon the availability of reimbursement funds for the costs of the

resulting drugs and related treatments.

● The market may not accept any pharmaceutical products that we develop, and adverse public perception of gene therapy products may negatively affect demand for, or

regulatory approval of, our product candidates.

● We may be subject to federal, state, and foreign healthcare laws and regulations, including fraud and abuse laws, false claims laws, health information privacy and

security laws and data privacy laws. If we are unable to comply, or have not fully complied, with such laws, we could face substantial penalties.

● Our business could suffer if we lose the services of, or fail to attract, key personnel.
● Trends toward managed health care and downward price pressures on medical products and services may limit our ability to profitably sell any drugs that we may

develop.

● Our rights to develop and commercialize our product candidates are subject to, in part, the terms and conditions of licenses granted to us by others.
● If we are unable to obtain and maintain patent protection for our product candidates and technology, or if the scope of the patent protection obtained is not sufficiently

broad, our competitors could develop and commercialize products and technology similar or identical to ours.
● Our intellectual property licenses with third parties may be subject to disagreements over contract interpretation.
● We may not be successful in obtaining necessary rights to our product candidates through acquisitions and in-licenses.
● We may not be able to protect our intellectual property rights around the world.
● Issued patents covering our product candidates could be found invalid or unenforceable if challenged in court. We may not be able to protect our trade secrets in court,

and intellectual property litigation could cause us to spend substantial resources.

● Third-parties may initiate legal proceedings alleging that we are infringing their intellectual property rights, the outcome of which would be uncertain and could harm

our business.

● We may be subject to claims asserting that our employees, consultants or advisors have wrongfully used or disclosed alleged trade secrets of their current or former

employers or claims asserting ownership of what we regard as our own intellectual property.

● If we do not obtain patent term extension and data exclusivity for our product candidates, our business may be harmed.
● We have experienced a history of losses; we expect to incur future losses and we may be unable to obtain necessary additional capital to fund operations in the future.

We do not have significant operating revenue and may never achieve profitability.

● Failure to achieve and maintain effective internal controls could have a material adverse effect on our business.
● We expect to continue to need to raise additional capital to operate our business, and our failure to obtain funding when needed or on terms that are favorable to us

may force us to delay, reduce or eliminate our development programs or aspects thereof.

● The market price of our common stock may be volatile and adversely affected by several factors.
● Raising additional funds by issuing securities or through licensing or lending arrangements or through  our  at-the-market  sale  agreement  may  cause  dilution  to  our

existing stockholders, restrict our operations or require us to relinquish proprietary rights.

● Our quarterly operating results may fluctuate significantly.
● Provisions of our charter documents could discourage an acquisition of our company.
● There can be no assurance that we will be able to comply with continued listing standards of the Nasdaq.
● Ownership of  our  shares  is  concentrated  in  the  hands  of  a  few  investors,  which  could  limit  the  ability  of  our  other  stockholders  to  influence  the  direction  of  the

Company.

31

 
 
 
Risks related to the discovery and development of our product candidates

Our  gene  and  cell  therapy  product  candidates  are  based  on  proprietary  methodologies,  which  makes  it  difficult  to  predict  the  time  and  cost  of  product  candidate
development and subsequently obtaining regulatory approval. Only a few gene therapy products have been approved in the U.S. and the EU.

We  have  concentrated  our  therapeutic  product  research  and  development  efforts  on  our  gene  and  cell  therapy  platform,  and  our  future  success  depends  on  the  successful
development of this therapeutic approach. There can be no assurance that any development problems we experience in the future related to our gene and cell therapy platform
will  not  cause  significant  delays  or  unanticipated  costs,  or  that  such  development  problems  can  be  solved.  We  may  also  experience  delays  in  developing  a  sustainable,
reproducible and commercial-scale manufacturing process or transferring that process to commercial partners, which may prevent us from completing our clinical studies or
commercializing our products on a timely or profitable basis, if at all.

In addition, the clinical study requirements of the FDA, the EMA, and other regulatory agencies and the criteria these regulators use to determine the safety and efficacy of a
product candidate vary substantially according to the type, complexity, novelty and intended use and market of the potential products. The regulatory approval process for novel
product candidates such as ours can be more expensive and take longer than for other, better known or more extensively studied pharmaceutical or other product candidates.
Currently, only a few gene therapy products have been approved in the Western world, including the Spark Therapeutics, Inc. and AveXis, Inc. gene therapy products, which
received approval from the FDA in 2018 and 2019, respectively. Additionally, GlaxoSmithKline’s Strimvelis® in Europe and Novartis’s and Gilead’s CAR-T therapies received
approval from the FDA in 2017 and 2021. Given the few precedents of approved gene therapy products, it is difficult to determine how long it will take or how much it will
cost to obtain regulatory approvals for our product candidates in the United States, the EU or other jurisdictions. Approvals by the EMA and the European Commission may not
be indicative of what the FDA may require for approval.

Regulatory requirements governing gene and cell therapy products have evolved and may continue to change in the future. For example, the FDA has established the
OTAT within CBER to consolidate the review of gene therapy and related products, and the Cellular, Tissue and Gene Therapies Advisory Committee to advise CBER on
its review.

Regulatory requirements in the United States and in other jurisdictions governing gene therapy products have changed frequently and will continue to change in the future as
scientific knowledge is acquired. The FDA and EMA have each expressed interest in further regulating gene therapy. For example, the FDA has established the Office Tissues
and Advanced Therapies within CBER to consolidate the review of gene therapy and related products, and the Cellular, Tissue and Gene Therapies Advisory Committee to
advise CBER on its review. Over the last few years, FDA, through CBER, has provided significant guidance regarding the development of gene therapies. Additionally, the
EMA  advocates  a  risk-based  approach  to  the  development  of  a  gene  therapy  product.  Agencies  at  both  the  federal  and  state  level  in  the  United  States,  as  well  as  the  U.S.
congressional committees and other governments or governing agencies, have also expressed interest in further regulating the biotechnology industry. Such action may delay or
prevent  commercialization  of  some,  or  all,  of  our  product  candidates.  These  regulatory  review  agencies,  committees  and  advisory  groups  and  the  new  requirements  and
guidelines they promulgate may lengthen the regulatory review process, require us to perform additional or larger studies, increase our development costs, lead to changes in
regulatory positions and interpretations, delay or prevent approval and commercialization of these treatment candidates or lead to significant post-approval studies, limitations,
or restrictions. As we advance our product candidates, we will be required to consult with these regulatory and advisory groups and comply with applicable requirements and
guidelines. If we fail to do so, we may be required to delay or discontinue development of our product candidates. Delay or failure to obtain, or unexpected costs in obtaining,
the regulatory approval necessary to bring a potential product to market could decrease our ability to generate sufficient product revenue to maintain our business.

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We  may  encounter  substantial  delays  in  our  clinical  studies,  such  as  clinical  holds,  or  we  may  fail  to  demonstrate  safety  and  efficacy  to  the  satisfaction  of  applicable
regulatory authorities.

Before obtaining marketing approval from regulatory authorities for the sale of our product candidates, we must conduct extensive clinical studies to demonstrate the safety,
purity and potency, and efficacy, of the product candidates in humans. Clinical testing is expensive, time-consuming, and uncertain as to outcome. This is especially true for
rare  and/or  complicated  diseases.  We  cannot  guarantee  that  any  clinical  studies  will  be  conducted  as  planned  or  completed  on  schedule,  if  at  all.  A  failure  of  one  or  more
clinical studies can occur at any stage of testing.

The results of preclinical studies, preliminary study results, and early clinical trials of our product candidates may not be predictive of the results of later-stage clinical trials or
the  ultimately  completed  trial.  Product  candidates  in  later  stages  of  clinical  trials  may  fail  to  show  the  desired  safety  and  efficacy  traits  despite  having  progressed  through
preclinical studies and initial clinical trials. Preclinical and early clinical studies may also reveal unfavorable product candidate characteristics, including safety concerns. We
may also experience numerous unforeseen events during, or as a result of, clinical trials that could delay or prevent our ability to receive marketing approval or commercialize
our product candidates, including:

● regulators or IRBs may not authorize us or our investigators to commence or continue a clinical trial, conduct a clinical trial at a prospective trial site, or amend trial

protocols, or regulators or IRBs may require that we modify or amend our clinical trial protocols;

● we may experience delays in reaching, or fail to reach, agreement on acceptable clinical trial contracts or clinical trial protocols with prospective trial sites and our

CROs;

● regulators  may  require  us  to  perform  additional  or  unanticipated  clinical  trials  to  obtain  approval  or  we  may  be  subject  to  additional  post-marketing  testing,

surveillance, or REMS requirements to maintain regulatory approval;

● flaws in a clinical trial may not become apparent until the trial is well advanced;
● clinical trials of our product candidates may produce negative or inconclusive results, or our studies may fail to reach the necessary level of statistical significance, and

we may decide, or regulators may require us, to conduct additional clinical trials or abandon product development programs;

● our third-party contractors may fail to comply with regulatory requirements or the clinical trial protocol, or fail to meet their contractual obligations to us in a timely

manner, or at all, or we may be required to engage in additional clinical trial site monitoring;

● we, the regulators, or IRBs may require the suspension or termination of clinical research for various reasons, including noncompliance with regulatory requirements
or a finding that the participants are being exposed to unacceptable health risks, undesirable side effects, or other unexpected characteristics (alone or in combination
with other products) of the product candidate, or due to findings of undesirable effects caused by a chemically or mechanistically similar therapeutic or therapeutic
candidate;

● changes in marketing approval and regulatory review policies or changes in or the enactment of additional statutes or regulations;
● the cost of clinical trials of and marketing applications for our product candidates may be greater than we anticipate;
● the supply or quality of our product candidates or other materials necessary to conduct clinical trials may be insufficient or inadequate;
● we may  decide,  or  regulators  may  require  us,  to  conduct  or  gather,  as  applicable,  additional  clinical  trials,  analyses,  reports,  data,  or  preclinical  trials,  or  we  may

abandon product development programs;

● we may fail to reach an agreement with regulators or IRBs regarding the scope, design, or implementation of our clinical trials. For instance, the FDA or comparable

foreign regulatory authorities may require changes to our study design that make further study impractical or not financially prudent;

● we may have delays in adding new investigators or clinical trial sites, or we may experience a withdrawal of clinical trial sites;
● there may be regulatory questions or disagreements regarding interpretations of data and results, or new information may emerge regarding our product candidates;

33

 
 
 
 
 
 
● we  may  make  changes  to  our  product  candidates  or  their  manufacturing  process  that  necessitate  additional  studies  or  that  result  in  our  product  candidates  not

performing as expected;

● the FDA or comparable foreign regulatory authorities may disagree with our study design, including endpoints, or our interpretation of data from preclinical studies

and clinical trials or find that a product candidate’s benefits do not outweigh its safety risks;

● the FDA or comparable foreign regulatory authorities may not accept data from studies with clinical trial sites in foreign countries;
● the FDA or comparable regulatory authorities may disagree with our intended indications;
● the FDA or comparable foreign regulatory authorities may fail to approve or subsequently find fault with the manufacturing processes or our contract manufacturer’s

manufacturing facility for clinical and future commercial supplies;

● the data collected from clinical trials of our product candidates may not be sufficient to the satisfaction of the FDA or comparable foreign regulatory authorities to
support the submission of a marketing application, or other comparable submission in foreign jurisdictions or to obtain regulatory approval in the United States or
elsewhere;

● regulatory authorities may not accept data from clinical trials conducted in other countries;
● if one of our product candidates does not receive marketing approval in one country, it may impact our ability to receive marketing approval in other countries;
● the FDA or comparable regulatory authorities may take longer than we anticipate to make a decision on our product candidates; and
● we  may  not  be  able  to  demonstrate  that  a  product  candidate  provides  an  advantage  over  current  standards  of  care  or  current  or  future  competitive  therapies  in

development.

Delays in launching clinical trials resulting from FDA or other regulatory actions, such as a clinical hold letter, would delay the commercialization of our product candidates
and our ability to generate revenue, which would have an adverse effect on our business. For example, in September 2019, we received a clinical hold letter in connection with
our Phase 3 clinical trial for EB-101 stating that the FDA would not provide approval for us to begin our planned Phase 3 clinical trial for EB-101 until we submitted additional
data points on transport stability of EB-101 to clinical sites. Although the FDA removed the clinical hold in December 2019 and provided clearance for us to proceed with our
planned Phase 3 clinical trial, we may encounter similar delays in our clinical studies in the future.

Significant  delays  relating  to  any  preclinical  or  clinical  trials  also  could  shorten  any  periods  during  which  we  may  have  the  exclusive  right  to  commercialize  our  product
candidates or allow our competitors to bring products to market before we do. This may prevent us from receiving marketing approvals and impair our ability to successfully
commercialize our product candidates. If any of the foregoing were to occur, our business, financial condition, results of operations, and prospects will be materially harmed.

We may find it difficult to enroll patients in our clinical studies, which could delay or prevent clinical studies of our product candidates.

Identifying and qualifying patients to participate in clinical studies of our product candidates is critical to our success. The timing of our clinical studies depends on the speed at
which we can recruit eligible patients to participate in testing our product candidates. We have experienced delays in some of our clinical studies due to the ultra-rare nature of
the diseases we aim to treat, and we may experience similar delays in the future. If patients are unwilling to participate in our gene and cell therapy studies because of negative
publicity from adverse events in the biotechnology or gene therapy industries or for other reasons, including competitive clinical studies for similar patient populations, the
timeline for recruiting patients, conducting studies, and obtaining regulatory approval of potential products may be delayed. These delays could result in increased costs, delays
in advancing our product development, delays in testing the effectiveness of our technology or termination of the clinical studies altogether.

34

 
 
 
 
 
 
 
We may not be able to identify, recruit or enroll a sufficient number of patients, or those with required or desired characteristics to achieve diversity in a study, to complete our
clinical studies in a timely manner. Patient enrollment is affected by factors including:

● severity of the disease under investigation;
● design of the study protocol;
● size and nature of the patient population;
● eligibility criteria for and design of the study in question;
● perceived risks and benefits of the product candidate under study, including as a result of adverse effects observed in similar or competing therapies;
● proximity and availability of clinical study sites for prospective patients;
● availability of competing therapies and clinical studies;
● efforts to facilitate timely enrollment in clinical studies;
● ability to compensate patients for their time and effort;
● risk that enrolled patients will drop out before completion or not return for post-treatment follow-up;
● inability to obtain or maintain patient informed consents;
● effectiveness of publicity created by clinical trial sites regarding the trial;
● patient referral practices of physicians; and
● ability to monitor patients adequately during and after treatment.

Each of the conditions for which we plan to evaluate our current AAV product candidates are rare genetic disorders with limited patient pools from which to draw for clinical
studies. Further, because newborn screening is generally not performed for MPS IIIA and MPS IIIB and other diseases we plan to address through gene and cell therapy (e.g.,
retinal disease), and such diseases can be difficult to diagnose in the absence of a genetic screen, we may have difficulty finding patients who are eligible to participate in our
studies. The eligibility criteria of our clinical studies will further limit the pool of available study participants. Additionally, the process of finding and diagnosing patients may
prove costly.

We also plan to seek initial marketing approval in the European Union in addition to the U.S. Our ability to successfully initiate, enroll and complete a clinical study in any
foreign country is subject to additional risks unique to conducting business in foreign countries, such as different standards for the conduct of clinical studies; different laws,
medical standards, and regulatory requirements; and the ability to establish or manage relationships with treatment centers, contract research organizations and physicians.

If we have difficulty enrolling a sufficient number of patients to conduct our clinical studies as planned our development costs may increase, the time for completion of clinical
trials may increase, we may need to delay, limit or terminate ongoing or planned clinical studies, any of which would have an adverse effect on our business.

In  addition,  enrollment  in  our  Phase  3  VIITAL™  study  for  EB-101  may  encounter  some  challenges  related  to  identification  and  enrollment  of  patients  with  RDEB.  While
RDEB is a progressive condition diagnosed in early childhood, not all patients may qualify to participate in our study based on their ability to meet the study inclusion criteria,
including criteria related to overall medical condition, type of wounds (recurrent vs. chronic, location, size, etc.), presence of antibodies against collagen VII, or restrictions on
the ability to travel to study centers. The process for manufacturing EB-101 requires at least two biopsies from an area of intact skin that must then be shipped to Abeona’s
manufacturing facility, posing possible risks of transportation, and ultimately viability of the specimens. The clinical trial also requires enrolled patients to travel to the clinical
trial site for treatment and follow-up. For individuals with RDEB, traveling can be challenging and pose health risks.

35

 
 
 
 
 
 
 
 
Our products or product candidates may cause undesirable side effects or have other properties that could delay or prevent their regulatory approval or commercialization.

Undesirable side effects caused by our products or product candidates, including adverse events associated with our product candidates, could interrupt, delay, or halt clinical
trials and could result in the denial of regulatory approval or more limited approvals by the FDA, EMA or other regulatory authorities for any or all targeted indications, or the
inclusion of unfavorable information in our product labeling, such as limitations on the indicated uses or populations for which the products may be marketed or distributed, a
label  with  significant  safety  warnings,  including  boxed  warnings,  contraindications,  and  precautions,  a  label  without  statements  necessary  or  desirable  for  successful
commercialization, or may result in requirements for costly post-marketing testing and surveillance, or other requirements, including REMS, to monitor the safety or efficacy of
the products. These could in turn prevent us from commercializing our products or product candidates and generating revenues from their sale.

In addition, if we or others identify undesirable side effects caused by our product candidates after receipt of marketing approval, the regulatory authorities may require the
addition  of  restrictive  labeling  statements.  Regulatory  authorities  may  withdraw  their  approval  of  the  product.  We  also  may  be  required  to  change  the  way  the  product  is
administered or conduct additional clinical trials. Any of these events could prevent us from achieving or maintaining market acceptance of the affected products or product
candidate or could substantially increase the costs and expenses of commercializing the products or product candidate, which in turn could delay or prevent us from generating
significant revenues from its sale or adversely affect our reputation.

Even if we complete the necessary preclinical and clinical studies, we cannot predict when or if we will obtain regulatory approval to commercialize a product candidate or
the approval may be for a narrower indication than we expect.

We cannot commercialize a product until the appropriate regulatory authorities have reviewed and approved the product candidate. Even if our product candidates demonstrate
safety and efficacy in clinical studies, the regulatory agencies may not complete their review processes in a timely manner, or we may not be able to obtain regulatory approval.
Additional delays may result if an FDA Advisory Committee or other regulatory advisory group or authority recommends non-approval or restrictions on approval. In addition,
we  may  experience  delays  or  rejections  based  on  additional  government  regulation  from  future  legislation  or  administrative  action,  or  changes  in  regulatory  agency  policy
during  the  period  of  product  development,  clinical  studies,  and  the  review  process.  Regulatory  agencies  also  may  approve  a  treatment  candidate  for  fewer  or  more  limited
indications, populations, or uses than requested or may grant approval subject to the performance of post-marketing studies, surveillance, or other requirements. In addition,
regulatory  agencies  may  not  approve  the  labeling  claims  that  are  necessary  or  desirable  for  the  successful  commercialization  of  our  treatment  candidates,  or  may  require
significant safety warnings, including black box warnings, contraindications, and precautions. For example, the development of our product candidates for pediatric use is an
important part of our current business strategy, and if we are unable to obtain regulatory approval for the desired age ranges, our business may suffer.

We have received and may apply for additional designations intended to facilitate or encourage product candidate development. We may not receive any such designations
or be able to maintain them. Moreover, any such designations may not lead to faster development or regulatory review or approval and it does not increase the likelihood
that our product candidates will receive marketing approval.

Our product candidates have received regulatory designations including breakthrough therapy designation, RMAT designation, fast track designation, and rare pediatric disease
designation from the FDA. In the future and as appropriate, we may seek additional product designations. Receipt of such a designation is within the discretion of the FDA.
Even  if  we  believe  one  of  our  product  candidates  meets  the  criteria  for  a  designation,  the  FDA  may  disagree.  In  any  event,  the  receipt  of  such  a  designation  for  a  product
candidate may not result in a faster development process, review, or approval compared to product candidates considered for approval under conventional FDA procedures and
does not assure ultimate marketing approval by the FDA. In addition, the FDA may later decide that the product candidates no longer meet the designation conditions, in which
case  any  granted  designations  may  be  revoked.  Finally,  specifically  with  respect  our  rare  pediatric  disease  designations,  if  we  are  not  able  to  obtain  FDA  approval  of  our
designated product candidates before the statute sunsets, we would not be eligible to receive priority review vouchers.

36

 
 
 
 
 
 
 
 
 
Certain of our product candidates have received orphan drug designation from the FDA, there is no guarantee that we will be able to maintain this designation, receive
this designation for any of our other product candidates, or receive or maintain any corresponding benefits, including periods of exclusivity.

While orphan drug designation provides certain advantages, it neither shortens the development time or regulatory review time of a product candidate nor gives the product
candidate any advantage in the regulatory review or approval process. Generally, if a product candidate with orphan drug designation subsequently receives marketing approval
before another product considered by the FDA or comparable foreign regulatory authorities to be the same, for the same orphan indication, the product is entitled to a period of
marketing exclusivity, which precludes the FDA or comparable foreign regulatory authorities from approving another marketing application for the same drug or biologic for
the same indication for seven years. We may not be able to obtain any future orphan drug designations that we apply for, orphan drug designations do not guarantee that we will
be able to successfully develop our product candidates, and there is no guarantee that we will be able to maintain any orphan drug designations that we receive. For instance,
orphan drug designation may be revoked if the FDA finds that the request for designation contained an untrue statement of material fact or omitted material information, or if
the FDA finds that the product candidate was not eligible for designation at the time of the submission of the request. Moreover, we may ultimately not receive any period of
regulatory exclusivity if our product candidates are approved. For instance, we may not receive orphan product regulatory exclusivity if the indication for which we receive
FDA approval is broader than the designation. Orphan exclusivity may also be lost for the same reasons that the designation may be lost. Orphan exclusivity may further be lost
if we are unable to assure a sufficient quantity of the product to meet the needs of patients with the rare disease or condition.

Even if we obtain orphan exclusivity for any of our current or future product candidates, that exclusivity may not effectively protect the product from competition as different
products can be approved for the same condition or products that are the same as ours can be approved for different conditions. Even after an orphan product is approved, the
FDA or comparable foreign regulatory authorities can also subsequently approve a product containing the same principal molecular features for the same condition if the FDA
concludes that the later product is clinically superior. The FDA may further grant orphan drug designation to multiple sponsors for the same compound or active molecule and
for the same indication. If another sponsor receives FDA or comparable foreign regulatory authority approval for such product before we do, we would be prevented from
launching our product for the orphan indication for a period of at least seven years unless we can demonstrate clinical superiority. FDA’s thinking around sameness with respect
to  gene  therapies,  and  thus  the  circumstances  when  clinical  superiority  would  need  to  be  shown,  is  evolving.  While  the  agency  has  issued  a  guidance  on  the  topic,  certain
decisions may need to be made on a case by case basis, given the novelty of the technology. Moreover, third-party payors may reimburse for products off-label even if not
indicated for the orphan condition.

Even if we obtain regulatory approval for a product candidate, our products will remain subject to regulatory scrutiny.

Even  if  we  obtain  regulatory  approval  in  a  jurisdiction,  regulatory  authorities  may  still  impose  significant  restrictions  on  the  indicated  uses  or  marketing  of  our  product
candidates  or  impose  ongoing  requirements  for  potentially  costly  post-approval  studies,  post-market  surveillance  or  patient  or  drug  restrictions.  Moreover,  the  FDA  and
comparable foreign regulatory authorities will continue to closely monitor the safety profile of any product even after approval, including gene therapy specific requirements
for long term follow up. Additionally, the holder of an approved BLA is obligated to monitor and report adverse events and any failure of a product to meet the specifications in
the BLA. The holder of an approved BLA must also submit new or supplemental applications and obtain FDA approval for certain changes to the approved product, product
labeling  or  manufacturing  process.  Advertising  and  promotional  materials  must  comply  with  FDA  rules  and  are  subject  to  FDA  review,  in  addition  to  other  potentially
applicable federal and state laws.

In  addition,  product  manufacturers  and  their  facilities  are  subject  to  payment  of  user  fees  and  continual  review  and  periodic  inspections  by  the  FDA  and  other  regulatory
authorities for compliance with GMP and adherence to commitments made in the BLA. If we or a regulatory agency discovers previously unknown problems with a product,
such as adverse events of unanticipated severity or frequency, or that the product is less effective than previously thought, or problems with the facility where the product is
manufactured, a regulatory agency may impose restrictions relative to that product or the manufacturing facility, including requiring recall or withdrawal of the product from
the market or suspension of manufacturing.

37

 
 
 
 
 
 
 
 
If  we  fail  to  comply  with  applicable  regulatory  requirements  following  approval  of  any  of  our  product  candidates  or  during  product  development,  or  if  we  later  discovery
previously unknown safety, efficacy, or manufacturing issues, the following may result:

● restrictions  on  manufacturing,  distribution,  marketing,  or  labeling  of  such  products,  including  restrictions  on  the  indication  or  approved  patient  population,  and

required additional warnings, such as black box warnings, contraindications, and precautions;

● requirements to conduct post-marketing studies or clinical trials, or to institute risk mitigation strategies, such as REMS;
● issuance of corrective information;
● the product may become less competitive, we may face reputational harm, or we may face liability for any harm caused to patients or subjects;
● modifications on the way the product is administered;
● modifications on promotional pieces;
● issuance of warning, untitled, or cyber letters asserting that we are in violation of the law, or of safety alerts, Dear Healthcare Provider letters, press releases, or other

communications containing warnings or other safety information about the product;

● injunction or imposition civil or criminal penalties or monetary fines, restitution, or disgorgement of profits or revenues;
● suspension or withdrawal of regulatory approval;
● suspension or termination of any ongoing clinical studies;
● refusal to approve a pending marketing application, such as a BLA or supplements to a BLA submitted by us;
● seizure, detention, or recall of product;
● refusal to permit the import or export of our products; or
● refusal to allow us to enter into supply contracts, including government contracts, exclusion from federal healthcare programs, FDA debarment, consent decrees, or

corporate integrity agreements.

Any government investigation of alleged violations of law could require us to expend significant time and resources in response and could generate negative publicity. The
occurrence of any event or penalty described above may inhibit our ability to commercialize our product candidates and generate revenues.

The FDA’s policies may change, and additional government regulations may be enacted, that could prevent, limit or delay regulatory approval of our product candidates, that
could limit the marketability of our product candidates, or that could impose additional regulatory obligations on us. For example, the change in administration in the U.S. may
result in new, revised, postponed or frozen regulatory requirements and associated compliance obligations. Changes in medical practice and standard of care may also impact
the marketability of our product candidates. If we are slow or unable to adapt to changes in existing requirements, standards of care, or the adoption of new requirements or
policies, or if we are not able to maintain regulatory compliance, we may lose any marketing approval that we may have obtained and be subject to regulatory enforcement
action.

Should  any  of  the  above  actions  take  place,  they  could  adversely  affect  our  ability  to  achieve  or  sustain  profitability.  Further,  the  cost  of  compliance  with  post-approval
regulations may have a negative effect on our operating results and financial condition.

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The COVID-19 pandemic and efforts to reduce its spread have affected our operations and significantly impacted worldwide economic conditions, and could continue to
have a material effect on our operations, business and financial condition.

To date, the COVID-19 pandemic has resulted in intermittent shutdowns of non-essential businesses throughout the world. The impact of the COVID-19 pandemic has also
resulted in social, economic, and labor instability in the countries in which we, or the third parties with whom we engage, operate. Public health officials have recommended
precautions to mitigate the spread of the coronavirus, including prohibitions on congregating in heavily populated areas and shelter-in-place orders. As a result, our operations
at our Cleveland manufacturing facility were significantly scaled back during a portion of 2020 to ensure that our employees and those around them had the best chance to
remain safe and to accommodate reduced manufacturing and clinical development activities.

The  COVID-19  pandemic  has  substantially  burdened  healthcare  systems  worldwide,  delaying  enrollment  in  and  progression  of  our  clinical  trials.  Required  inspections  and
reviews  by  regulatory  agencies  have  also  been  delayed  due  to  the  focus  of  resources  on  COVID-19,  as  well  as  travel  and  other  restrictions.  For  example,  our  Phase  3
VIITALTM clinical trial was temporarily paused in March 2020 due to the COVID-19 pandemic and the restrictions established by our clinical trial site at Stanford University
in  Palo  Alto,  California,  but  resumed  in  June  2020.  Significant  delays  in  the  timing  of  our  clinical  trials  and  in  regulatory  reviews  could  adversely  affect  our  ability  to
commercialize our product candidates.

Although we remain committed to advancing our clinical programs, we recognize some delays are inevitable in light of the closure of non-essential businesses, stay at home
orders, and economic impacts related to the COVID-19 pandemic, especially as healthcare resources have been justly redirected to those who need them most. Many of the
third parties with whom we engage, including suppliers, clinical trial sites, regulators and other third parties with whom we conduct business, are also experiencing shutdowns
or other business disruptions. Despite our current clinical trial sites gradually resuming activities on site and us having resumed our EB-101 manufacturing activities in the later
part of 2020, we may continue to experience disruptions that could severely impact our business, supply chain, manufacturing operations, clinical trials, and pre-clinical studies,
including:

● continued interruption of key clinical trial activities, including continued limitations on travel imposed or recommended by federal or state governments, employers,

and others;

● the need to postpone, modify, suspend, or terminate clinical trials;
● patients may withdraw from clinical trials;
● we may experience study or manufacturing deviations or noncompliance, requiring that we consult with regulatory authorities, and IRBs, and which may compromise

the ultimate study results or quality of the manufactured products;

● continued delays or inability to obtain raw materials, ingredients, or other necessary supplies, including if third party suppliers need  to  prioritize  other  products  or

customers over us, including under the Defense Production Act;

● continued delays or difficulties in enrolling patients in our clinical trials;
● continued delays or difficulties in clinical site initiation, including difficulties in recruiting clinical site investigators and clinical site staff;
● delays or difficulties in manufacturing clinical drug material;
● continued diversion of healthcare resources away from the conduct of clinical trials, including the diversion of hospitals serving as our clinical trial sites and hospital

staff supporting the conduct of our clinical trials; and

● continued limitations in employee resources that would otherwise be focused on the conduct of our manufacturing operations, clinical trials, and preclinical studies,

including because of sickness of employees or their families or the desire of employees to avoid contact with large groups of people.

39

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The  ultimate  impact  of  the  COVID-19  pandemic  remains  uncertain  and  subject  to  change.  Due  to  the  potential  impact  of  the  COVID-19  outbreak  on  clinical  trials,  drug
development, and manufacturing, FDA issued guidance concerning how sponsors and investigators may address these challenges, as well as guidance specific to gene therapies
and comparable foreign regulatory authorities have done likewise. This guidance recommended that gene therapy manufacturers perform a risk assessment to identify, evaluate,
and  mitigate  factors  that  may  allow  for  the  transmission  of  the  SARS-CoV-2  virus.  FDA  specifically  recommended  that  manufacturers  consider  areas,  such  as  donor
assessments, cellular and tissue source materials, manufacturing processes, manufacturing facility controls, product and material testing, and the number of individuals who
may receive the product. Per the guidance, risk assessment and mitigation strategies should be submitted to FDA.

The  COVID-19  pandemic  may  also  result  in  changes  in  laws  and  regulations.  For  example,  in  March  2020,  the  U.S.  Congress  passed  the  Coronavirus  Aid,  Relief,  and
Economic Security Act, or CARES Act, which includes various provisions regarding FDA drug shortage reporting requirements, as well as provisions regarding supply chain
security, such as risk management plan requirements, and the promotion of supply chain redundancy and domestic manufacturing. This and any future changes in law may
require that we change our internal processes and procedures to ensure continued compliance. We do not yet know the full extent of potential delays or impacts on our business,
operations, or financial condition, or on healthcare systems or the global economy as a whole. However, these effects could have a material impact on our ability to access the
capital markets as needed and on our operations and business, and those of the third parties on which we rely.

Risks related to manufacturing

We could experience production problems in our manufacturing facilities that result in delays in our development or commercialization programs or otherwise adversely
affect our business.

We are susceptible to production interruptions that may impede our ability to manufacture gene and cell therapy products and produce an adequate product supply to support
clinical  trials  and  potentially  future  commercialization.  Several  factors  could  cause  production  interruptions,  including  equipment  malfunctions,  facility  contamination,  raw
material  shortages  or  contamination,  natural  disasters,  public  health  emergencies  such  as  the  coronavirus,  disruption  in  utility  services,  human  error,  or  disruptions  in  the
operations of our suppliers. Our products and product candidates are biologic drugs requiring processing steps that are more complex than those required for most chemical
pharmaceuticals. We characterize our processes and products, and perform testing to ensure the safety, quality and efficacy of each product produced. While we take significant
measures to fully understand and characterize each product, the steps we take may not be sufficient to ensure that a given lot will perform in the intended manner.

There are several risks specific to the manufacturing process for EB-101 which require close attention. As an autologous product there are challenges associated with viability
of biopsies as an incoming material. Due to variables such as the fragility of RDEB skin and site of the biopsy, initiation of autologous keratinocyte growth and expansion can
be  challenging  or  may  be  extended  beyond  the  scheduled  timing.  Another  concern  during  manufacturing  is  the  slowing  of  cell  proliferation,  resulting  in  extended
manufacturing time. If pre-release criteria are not met, the production process must be stopped and a new biopsy must be obtained. If release criteria are out of range, epidermal
sheets must be discarded and the manufacturing process must be repeated.

We currently do not have a backup manufacturer to supply clinical trial material for EB-101. An alternative manufacturer would need to be qualified, through regulatory filings,
which  could  result  in  delays  to  our  clinical  trial  timeline.  The  regulatory  authorities  also  may  require  additional  clinical  trials  if  a  new  manufacturer  is  relied  upon  for
commercial production. Switching manufacturers may involve substantial costs and could result in a delay in our desired clinical and commercial timelines.

40

 
 
 
 
 
 
 
 
 
Accordingly, we employ multiple steps to control our manufacturing process to assure that the products or product candidate is made strictly and consistently in compliance
with the process. Problems with the manufacturing process, including even minor deviations from the normal process, could result in product defects or manufacturing failures
that result in lot failures, product recalls, product liability claims, or insufficient inventory. We may encounter problems achieving adequate quantities and quality of clinical
grade materials that meet FDA, EU or other applicable standards or specifications with consistent and acceptable production yields and costs. In addition, FDA, EMA and other
foreign regulatory authorities may require us to submit samples of any lot of any approved product together with the protocols showing the results of applicable tests at any
time.  Under  some  circumstances,  FDA,  EMA  or  other  foreign  regulatory  authorities  may  require  that  we  not  distribute  a  lot  until  the  agency  authorizes  its  release.  Slight
deviations  in  the  manufacturing  process,  including  those  affecting  quality  attributes  and  stability,  may  result  in  unacceptable  changes  in  the  product  that  could  result  in  lot
failures or product recalls for approved and marketed products.

Lot failures or product recalls could cause us to delay product launches or clinical trials, which could be costly to us and otherwise harm our business, financial condition,
results of operations and prospects. We also may encounter problems hiring and retaining the experienced specialist scientific, quality control and manufacturing personnel
needed to operate our manufacturing process, which could result in delays in our production or difficulties in maintaining compliance with applicable regulatory requirements.
Any  problems  in  our  manufacturing  process  or  facilities  could  make  us  a  less  attractive  collaborator  for  potential  partners,  including  larger  pharmaceutical  companies  and
academic research institutions, which could limit our access to additional attractive development programs. Problems in our manufacturing process including in internal and
external facilities providing supply necessary for manufacturing or challenges with procuring supplies, such as due to global trade policies, also could restrict our ability to meet
clinical  trial  supply  demand,  and  eventually  market  demand  for  any  product  candidates  for  which  we  may  receive  marketing  approval.  Disruptions  in  our  manufacturing
process may delay or disrupt our commercialization efforts.

If we or any of our vendors, contract laboratories or suppliers are found to be out of compliance with cGMP, we may experience delays or disruptions in manufacturing
while  we  implement  corrective  actions  or  work  with  these  third  parties  to  remedy  the  violation  or  while  we  work  to  identify  suitable  replacement  vendors,  contract
laboratories or suppliers.

To obtain regulatory approval for commercial manufacturing, we will need to continue to ensure that all of our processes, methods and equipment are compliant with cGMP
and perform extensive audits of vendors, contract laboratories and suppliers. The cGMP requirements govern quality control of the manufacturing process and documentation
policies and procedures. Complying with cGMP requires us to expend time, money and effort in production, record keeping and quality control to assure that the product meets
applicable specifications and other requirements. If we fail to comply with these requirements, we would be subject to possible regulatory action and may not be permitted to
sell any products that we may develop.

We may rely on third parties to conduct aspects of our product manufacturing, and these third parties may not perform satisfactorily. We may rely on third parties to produce
certain materials for our product candidates and, therefore, we can control only certain aspects of their activities.

We and our third party suppliers, laboratories, and manufacturers may be unable to comply with our specifications, cGMP requirements and with other FDA, state, and foreign
regulatory  requirements.  Poor  control  of  production  processes  can  lead  to  the  introduction  of  adventitious  agents  or  other  contaminants,  or  to  inadvertent  changes  in  the
properties or stability of a product candidate that may not be detectable in final product testing. If we or our contract manufacturers cannot successfully manufacture material
that  conforms  to  our  specifications  and  the  strict  regulatory  requirements  of  the  FDA  or  other  regulatory  authorities,  they  will  not  be  able  to  secure  or  maintain  regulatory
approval  for  their  manufacturing  facilities.  Any  such  deviations  may  also  require  remedial  measures  that  may  be  costly  and/or  time-consuming  for  us  or  a  third  party  to
implement  and  may  include  the  temporary  or  permanent  suspension  of  a  clinical  trial  or  commercial  sales  or  the  temporary  or  permanent  closure  of  a  facility.  Any  such
remedial measures imposed upon or by us or third parties with whom we contract could materially harm our business. Any delays in obtaining products or product candidates
that comply with the applicable regulatory requirements may result in delays to clinical trials, product approvals, and commercialization. It may also require that we conduct
additional studies.

41

 
 
 
 
 
 
 
 
We have manufacturing agreements with third parties that provide for, among other things, production of product candidates for our current and future early stage clinical trials.
Under  certain  circumstances,  the  other  party  is  entitled  to  terminate  its  arrangement  with  us.  If  we  need  to  enter  into  alternative  arrangements,  it  could  delay  our  product
development activities. Our reliance on third parties for certain manufacturing activities will reduce our control over these activities but will not relieve us of our responsibility
to ensure compliance with all required regulations. If a third party does not successfully carry out its contractual duties, meet expected deadlines or manufacture our product
candidates in accordance with regulatory requirements, or if there are disagreements between us and any such third party, we will not be able to complete, or may be delayed in
completing, the preclinical studies required to support future IND submissions and the clinical trials required for approval of our product candidates. In such instances, we may
need  to  enter  into  an  appropriate  replacement  third-party  relationship,  which  may  not  be  readily  available  or  on  acceptable  terms,  which  would  cause  additional  delay  or
increased expense prior to the approval of our product candidates and would thereby have a material adverse effect on our business, financial condition, results of operations
and prospects.

In addition, if the FDA or a comparable foreign regulatory authority does not approve our or a third party’s facilities for the manufacture of our product candidates or if it
withdraws  any  such  approval  in  the  future,  we  may  need  to  find  alternative  manufacturing  facilities,  which  would  significantly  impact  our  ability  to  develop,  obtain  and
maintain regulatory approval for or market our product candidates, if approved. Any new manufacturers would need to either obtain or develop the necessary manufacturing
know-how, and obtain the necessary equipment and materials, which may take substantial time and investment. We must also receive FDA approval for the use of any new
manufacturers  for  commercial  supply.  We  may  not  succeed  in  our  efforts  to  establish  manufacturing  relationships  or  other  alternative  arrangements  for  any  of  our  product
candidates, components, and programs. For example, our product candidates may compete with other products and product candidates for access to manufacturing facilities.
There are a limited number of manufacturers that operate under cGMP regulations and that are both capable of manufacturing for us and willing to do so.

The  manufacture  of  biologic  products  requires  significant  expertise  and  capital  investment,  including  the  development  of  advanced  manufacturing  techniques  and  process
controls.  Manufacturers  of  therapeutics  often  encounter  difficulties  in  production,  particularly  in  scaling  up  initial  production.  These  problems  include  difficulties  with
production costs and yields, quality control, including stability of the product candidate and quality assurance testing, shortages of qualified personnel, and compliance with
strictly enforced federal, state, and foreign regulations. If we or our manufacturers were to encounter any of these difficulties and were unable to perform as agreed, our ability
to provide product candidates to patients in our clinical trials and for commercial use, if approved, would be jeopardized.

Our reliance on these third parties entails risks to which we would not be subject if we manufactured the product candidates ourselves, including:

● reduced control for certain aspects of manufacturing activities;
● reduced control over the protection of our trade secrets and know-how from misappropriation or inadvertent disclosure;
● inability to negotiate manufacturing agreements with third parties under commercially reasonable terms;
● reliance on the third party for regulatory compliance and quality assurance;
● termination or nonrenewal of manufacturing and service agreements with third parties in a manner or at a time that is costly or damaging to us; and
● disruptions  to  the  operations  of  our  third-party  manufacturers  and  service  providers  caused  by  conditions  unrelated  to  our  business  or  operations,  including  the

bankruptcy of the manufacturer or service provider.

Any of these events could lead to clinical trial delays or failure to obtain regulatory approval or impact our ability to successfully commercialize future product candidates.
Some of these events could be the basis for FDA action or action of equivalent competent authorities in foreign jurisdictions, including injunction, recall, seizure or total or
partial  suspension  of  product  manufacture.  Failure  to  comply  with  ongoing  regulatory  requirements  could  cause  us  to  suspend  production  or  put  in  place  costly  or  time-
consuming remedial measures.

42

 
 
 
 
 
 
 
 
If  any  inspection  or  audit  by  regulatory  authorities  identifies  a  failure  to  comply  with  applicable  regulations,  or  if  a  violation  of  product  specifications  or  applicable
regulations occurs independent of such an inspection or audit, the relevant regulatory authority may require remedial measures that may be costly or time-consuming to
implement and that may include the temporary or permanent suspension of a clinical trial or commercial sales or the temporary or permanent closure of a manufacturing
facility.

Regulatory authorities may inspect or audit the manufacturing facilities for our products and product candidates at any time. Any such remedial measures imposed upon us
could materially harm our business, financial condition, results of operations and prospects. If we fail to comply with applicable cGMP regulations, FDA and foreign regulatory
authorities could impose regulatory sanctions including, among other things, refusal to approve a pending application for a new product candidate or suspension or revocation
of a pre-existing approval. Such an occurrence may cause our business, financial condition, results of operations and prospects to be materially harmed. Additionally, if supply
from our facility is interrupted, there could be a significant disruption in commercial supply of any of our product candidates for which we obtain marketing approval, and in
clinical supply for our product candidates.

If we, our collaborators, or any third-party manufacturers we engage fail to comply with environmental, health and safety laws and regulations, we could become subject
to fines or penalties or incur costs that could harm our business.

We, our collaborators, and any third-party manufacturers we engage are subject to numerous environmental, health and safety laws and regulations, including those governing
laboratory procedures and the generation, handling, use, storage, treatment, manufacture, transportation and disposal of, and exposure to, hazardous materials and wastes, as
well as laws and regulations relating to occupational health and safety. Our operations involve the use of hazardous and flammable materials, including chemicals and biologic
materials. Our operations also produce hazardous waste products. We generally contract with third parties for the disposal of these materials and wastes. We cannot eliminate
the risk of contamination or injury from these materials. In the event of contamination or injury resulting from our use of hazardous materials, we could be held liable for any
resulting damages, and any liability could exceed our resources. We also could incur significant costs associated with civil or criminal fines and penalties.

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

In addition, we may incur substantial costs in order to comply with current or future environmental, health and safety laws and regulations, which have tended to become more
stringent over time. These current or future laws and regulations may impair our research, development, or production efforts. Failure to comply with these laws and regulations
also may result in substantial fines, penalties or other sanctions or liabilities, which could harm our business, financial condition, results of operations and prospects.

Risks related to our reliance on third-parties

We expect to rely on third parties to conduct some or all aspects of our viral vector production, drug product manufacturing, research and preclinical, and clinical testing,
and these third parties may not perform satisfactorily.

We do not expect to independently conduct all aspects of our viral vector production, drug product manufacturing and distribution, research and preclinical, and clinical testing.
We currently rely, and expect to continue to rely, on third parties with respect to these matters. In some cases, these third parties are academic, research or similar institutions
that may not apply the same quality control protocols utilized in certain commercial settings.

43

 
 
 
 
 
 
 
 
 
 
 
Our  reliance  on  these  third  parties  for  research  and  development  activities  reduces  our  control  over  these  activities  but  does  not  relieve  us  of  our  responsibility  to  ensure
compliance with all required regulations and study protocols. For example, for product candidates that we develop and commercialize on our own, we remain responsible for
ensuring that each of our IND-enabling studies and clinical studies are conducted in accordance with the study plan and protocols, and that our viral vectors and drug products
are manufactured in accordance with GMP as applied in the relevant jurisdictions. We must also ensure that our preclinical trials are conducted in accordance with GLPs, as
appropriate. Moreover, the FDA and comparable foreign regulatory authorities require us to comply with GCPs for conducting, recording, and reporting the results of clinical
trials to assure that data and reported results are credible and accurate and that the rights, integrity, and confidentiality of trial participants are protected. Regulatory authorities
enforce these requirements through periodic inspections. If we or any of our third-party service providers fail to comply with applicable regulatory requirements, we or they
may be subject to enforcement or other legal actions, the data generated in our trials or manufacturing development may be deemed unreliable, and the FDA or comparable
foreign regulatory authorities may require us to perform additional studies and manufacturing development. If these third parties do not successfully carry out their contractual
duties, meet expected deadlines, conduct our studies in accordance with regulatory requirements or our stated study plans and protocols, or manufacture our viral vectors and
drug products in accordance with GMP, or if they need to be replaced or if the quality or accuracy of the data they obtain is compromised due to the failure to adhere to our
protocols, regulatory requirements or for other reasons, we will not be able to complete, or may be delayed in completing, the preclinical and clinical studies and manufacturing
process validation activities required to support future IND, MAA and BLA submissions and approval of our product candidates.

Any  of  these  third  parties  may  terminate  their  engagements  with  us  at  any  time.  If  we  need  to  enter  into  alternative  arrangements,  it  could  delay  our  product  development
activities. Any of these events could lead to clinical study delays or failure to obtain regulatory approval or impact our ability to successfully commercialize future products.
Some of these events could be the basis for FDA action, including injunction, recall, seizure or total or partial suspension of production.

Our reliance on third parties requires us to share our trade secrets, which increases the possibility that a competitor will discover them or that our trade secrets will be
misappropriated or disclosed.

Because we rely on third parties to manufacture our vectors and our product candidates, and because we collaborate with various organizations and academic institutions on the
advancement of our gene and cell therapy platform, we must, at times, share trade secrets with them. We seek to protect our proprietary technology in part by entering into
confidentiality  agreements  and,  if  applicable,  material  transfer  agreements,  collaborative  research  agreements,  consulting  agreements  or  other  similar  agreements  with  our
collaborators, advisors, employees, and consultants prior to beginning research or disclosing proprietary information. These agreements typically limit the rights of the third
parties to use or disclose our confidential information, such as trade secrets. Despite the contractual provisions employed when working with third parties, the need to share
trade secrets and other confidential information increases the risk that such trade secrets become known by our competitors, are inadvertently incorporated into the technology
of others, or are disclosed or used in violation of these agreements. Given that our proprietary position is based, in part, on our know-how and trade secrets, a competitor’s
discovery of our trade secrets or other unauthorized use or disclosure would impair our competitive position and may have a material adverse effect on our business.

In addition, these agreements typically restrict the ability of our collaborators, advisors, employees, and consultants to publish data potentially relating to our trade secrets. Our
academic collaborators typically have rights to publish data, provided that we are notified in advance and may delay publication for a specified time in order to secure our
intellectual property rights arising from the collaboration. In other cases, publication rights are controlled exclusively by us, although in some cases we may share these rights
with  other  parties.  We  also  conduct  joint  research  and  development  programs  that  may  require  us  to  share  trade  secrets  under  the  terms  of  our  research  and  development
partnerships or similar agreements. Despite our efforts to protect our trade secrets, our competitors may discover our trade secrets, either through breach of these agreements,
independent  development  or  publication  of  information  including  our  trade  secrets  in  cases  where  we  do  not  have  proprietary  or  otherwise  protected  rights  at  the  time  of
publication. A competitor’s discovery of our trade secrets would impair our competitive position and have an adverse impact on our business.

44

 
 
 
 
 
 
 
Risks associated with commercializing our product candidates

Our drug candidates are subject to the risks of failure inherent in the development of pharmaceutical products based on new technologies, and our failure to develop safe
and commercially viable drugs would severely limit our ability to become profitable or to achieve significant revenues.

We may be unable to successfully commercialize our product candidates if some or all of our product candidates are found to be unsafe or ineffective or otherwise fail to meet
applicable  regulatory  standards  or  receive  necessary  regulatory  clearances.  Additionally,  our  product  candidates  may  be  deemed  too  difficult  to  develop  into  commercially
viable drugs. We may encounter difficulty in manufacturing or marketing our product candidates on a large scale, and proprietary rights of third parties may preclude us from
marketing  our  drug  candidates.  Moreover,  competitors  may  be  able  to  market  superior  or  equivalent  drugs  successfully.  Failure  to  successfully  commercialize  our  product
candidates would have a material adverse effect on our business.

We  may  be  unable  to  successfully  develop,  market,  or  commercialize  our  products  or  our  product  candidates  without  establishing  new  relationships  and  maintaining
current relationships and our ability to successfully commercialize, and market our product candidates could be limited if a number of these existing relationships are
terminated.

Our strategy for the research, development and commercialization of our potential pharmaceutical products may require us to enter into various arrangements with corporate
and academic collaborators, licensors, licensees and others, in addition to our existing relationships with other parties. Specifically, we may seek to joint venture, sublicense or
enter into other marketing arrangements with parties that have an established marketing capability, or we may choose to pursue the commercialization of such products on our
own. We may, however, be unable to establish such additional collaborative arrangements, license agreements, or marketing agreements as we may deem necessary to develop,
commercialize and market our potential pharmaceutical products on acceptable terms. Furthermore, we maintain and establish arrangements or relationships with third parties,
our business may depend upon the successful performance by these third parties of their responsibilities under those arrangements and relationships. If we are unwilling or
unable to perform our obligations under any license or collaboration arrangement, a third party may have the right to terminate such arrangement with us.

We are subject to extensive governmental regulation, which increases our cost of doing business and may affect our ability to commercialize any new products that we may
develop.

The  FDA  and  comparable  agencies  in  foreign  countries  impose  substantial  requirements  upon  the  introduction  of  pharmaceutical  products  through  lengthy  and  detailed
laboratory, preclinical and clinical testing procedures and other costly and time-consuming procedures to establish safety and efficacy. All of our drugs and drug candidates
require receipt and maintenance of governmental approvals for commercialization. Preclinical and clinical trials and manufacturing of our drug candidates will be subject to the
rigorous testing and approval processes of the FDA and corresponding foreign regulatory authorities. Satisfaction of these requirements typically takes a significant number of
years and can vary substantially based upon the type, complexity, and novelty of the product.

Due to the time-consuming and uncertain nature of the drug candidate development process and the governmental approval process described above, we cannot be certain when
we, independently or with our collaborative partners, might submit a BLA for FDA or other regulatory review. Further, our ability to commence and/or complete development
projects  will  be  subject  to  our  ability  to  raise  enough  funds  to  pay  for  the  development  costs  of  these  projects.  Government  regulation  also  affects  the  manufacturing  and
marketing  of  pharmaceutical  products.  Government  regulations  may  delay  marketing  of  our  potential  drugs  for  a  considerable  or  indefinite  period  of  time,  impose  costly
procedural requirements upon our activities and furnish a competitive advantage to larger companies or companies more experienced in regulatory affairs. Delays in obtaining
governmental regulatory approval could adversely affect our marketing as well as our ability to generate significant revenues from commercial sales.

45

 
 
 
 
 
 
 
 
 
 
Our  drug  candidates  may  not  receive  FDA  or  other  regulatory  approvals  on  a  timely  basis  or  at  all.  Moreover,  if  regulatory  approval  of  a  drug  candidate  is  granted,  such
approval may impose limitations on the indicated use for which such drug may be marketed. Even if we obtain initial regulatory approvals for our drug candidates, our drugs
and our manufacturing facilities would be subject to continual review and periodic inspection, and later discovery of previously unknown problems with a drug, manufacturer
or facility may result in restrictions on the marketing or manufacture of such drug, including withdrawal of the drug from the market. The FDA and other regulatory authorities
stringently apply regulatory standards and failure to comply with regulatory standards can, among other things, result in fines, denial or withdrawal of regulatory approvals,
product recalls or seizures, operating restrictions, and criminal prosecution.

We may incur substantial product liability expenses due to the use or misuse of our products for which we may be unable to obtain insurance coverage.

Our  business  exposes  us  to  potential  liability  risks  that  are  inherent  in  the  testing,  manufacturing,  and  marketing  of  pharmaceutical  products.  These  risks  will  expand  with
respect to our drug candidates, if any, that receive regulatory approval for commercial sale and we may face substantial liability for damages in the event of adverse side effects,
including injury or death, or product defects identified with any of our products that are used in clinical tests or marketed to the public. Product liability actions can also have
regulatory consequences, including the withdrawal of clinical trial participants and potential termination of clinical trial sites or entire clinical programs, and the initiation of
investigations, and enforcement actions by regulators, product recalls, withdrawals, revocation of approvals, or labeling, marketing, or promotional restrictions.

Product liability insurance for the biotechnology industry is generally expensive, if available at all, and as a result, we may be unable to obtain insurance coverage at acceptable
costs or in a sufficient amount in the future, if at all. We may be unable to satisfy any claims for which we may be held liable as a result of the use or misuse of products which
we developed, manufactured, or sold and any such product liability claim could adversely affect our business, operating results, or financial condition.

Intense competition may limit our ability to successfully develop and market commercial products.

The biotechnology and pharmaceutical industries are intensely competitive and subject to rapid and significant technological change. Our competitors in the U.S. and elsewhere
are  numerous  and  include,  among  others,  major  multinational  pharmaceutical  and  chemical  companies,  specialized  biotechnology  firms  and  universities  and  other  research
institutions.  Many  of  our  competitors  have  and  employ  greater  financial  and  other  resources,  including  larger  research  and  development,  marketing,  and  manufacturing
organizations. As a result, our competitors may successfully develop technologies and drugs that are more effective or less costly than any that we are developing, which could
render our technology and future products obsolete and noncompetitive.

In  addition,  some  of  our  competitors  have  greater  experience  than  we  do  in  conducting  preclinical  and  clinical  trials  and  obtaining  FDA  and  other  regulatory  approvals.
Accordingly, our competitors may succeed in obtaining FDA or other regulatory approvals for drug candidates more rapidly than we can. Companies that complete clinical
trials, obtain required regulatory agency approvals, and commence commercial sale of their drugs before their competitors may achieve a significant competitive advantage.
Drugs  resulting  from  our  research  and  development  efforts  or  from  our  joint  efforts  with  collaborative  partners  therefore  may  not  be  commercially  competitive  with  our
competitors’ existing products or products under development.

46

 
 
 
 
 
 
 
 
 
Our products and product candidates may face competition sooner than anticipated.

Our products and product candidates may face competition from other products that are the same as or similar to ours. If the FDA or comparable foreign regulatory authorities
approve biosimilar versions of our products or product candidates, or such authorities do not grant our products appropriate or anticipated periods of regulatory exclusivity, the
sales of our products could be adversely affected. Moreover, even if we receive periods of regulatory exclusivity, that exclusivity may not adequately protect us from biosimilar
or other product competition. There may also be changes in regulatory exclusivity policies. For example, there have been efforts to decrease the biologic period of exclusivity to
a shorter timeframe. Future proposed budgets, international trade agreements and other arrangements or proposals may affect periods of exclusivity. If another company pursues
approval of a product that is biosimilar to any biologic product for which we receive FDA approval, we may need to pursue costly and time consuming patent infringement
actions, which may include certain statutorily specified regulatory steps before an infringement action may be brought. Biosimilar applicants may also be able to bring an action
for declaratory judgment concerning our patents, requiring that we spend time and money defending the action.

Our  ability  to  successfully  develop  and  commercialize  our  drug  candidates  will  substantially  depend  upon  the  availability  of  reimbursement  funds  for  the  costs  of  the
resulting drugs and related treatments.

Market  acceptance  and  sales  of  our  product  candidates  may  depend  on  coverage  and  reimbursement  policies  and  health  care  reform  measures.  Decisions  about  formulary
coverage as well as levels at which government authorities and third-party payers, such as private health insurers and health maintenance organizations, reimburse patients for
the price they pay for our products as well as levels at which these payors pay directly for our products, where applicable, could affect whether we are able to commercialize
these products. We cannot be sure that reimbursement will be available for any of these products. Also, we cannot be sure that coverage or reimbursement amounts will not
reduce  the  demand  for,  or  the  price  of,  our  products.  We  have  not  commenced  efforts  to  have  our  product  candidates  reimbursed  by  government  or  third-party  payors.  If
coverage and reimbursement are not available or are available only at limited levels, we may not be able to commercialize our products. In recent years, officials have made
numerous proposals to change the health care system in the U.S. These proposals include measures that would limit or prohibit payments for certain medical treatments or
subject the pricing of drugs to government control. In addition, in many foreign countries, particularly the countries of the European Union, the pricing of prescription drugs is
subject to government control. If our products are or become subject to government regulation that limits or prohibits payment for our products, or that subjects the price of our
products to governmental control, we may not be able to generate revenue, attain profitability or commercialize our products.

As a result of legislative proposals and the trend towards managed health care in the U.S., third-party payors are increasingly attempting to contain health care costs by limiting
both coverage and the level of reimbursement of new drugs. They may also impose strict prior authorization requirements and/or refuse to provide any coverage of uses of
approved products for medical indications other than those for which the FDA has granted market approvals. As a result, significant uncertainty exists as to whether and how
much third-party payors will reimburse patients for their use of newly-approved drugs, which in turn will put pressure on the pricing of drugs.

The market may not accept any pharmaceutical products that we develop, thereby materially impairing our ability to generate revenue from such products.

The products that we are attempting to develop may compete with a number of well-established drugs manufactured and marketed by major pharmaceutical companies. The
degree of market acceptance of any drugs developed by us will depend on a number of factors, including the establishment and demonstration of the clinical efficacy and safety
of our drug candidates, the potential advantage of our drug candidates over existing therapies and the reimbursement policies of government and third-party payers. Physicians,
patients, or the medical community in general may not accept or use any drugs that we may develop independently or with our collaborative partners and if they do not, our
business could suffer.

47

 
 
 
 
 
 
 
 
 
Adverse public perception of gene therapy products may negatively affect demand for, or regulatory approval of, our product candidates.

Our product candidates involve altering genes, and the clinical and commercial success of our product candidates will depend in part on public acceptance of the use of gene
altering therapies for the treatment of genetic diseases. Public attitude may be influenced by claims that gene therapy is unsafe, unethical, or immoral, and, as a result, our
product candidates may not gain the acceptance of the public or the medical community. Negative public reaction to gene therapy in general could result in greater government
regulation and stricter labeling requirements of gene therapy products, including any of our product candidates, and could cause a decrease in the demand for any products we
may develop. Adverse public opinion also may adversely affect our ability to enroll patients in clinical trials.

Healthcare reform measures could hinder or prevent our product candidates’ commercial success.

Any government-adopted reform measures could adversely affect the pricing of healthcare products and services in the U.S. or internationally and the amount of reimbursement
available  from  governmental  agencies  or  other  third-party  payors.  The  continuing  efforts  of  the  U.S.  and  foreign  governments,  insurance  companies,  managed  care
organizations and other payors of health care services to contain or reduce health care costs may adversely affect our ability to set prices for our products which we believe are
fair, restrict coverage and reimbursement, or require payment of increased rebates and our ability to generate revenues and achieve and maintain profitability.

New laws, regulations and judicial decisions, or new interpretations of existing laws, regulations, and decisions, that relate to healthcare availability, methods of delivery or
payment for products and services, or sales, marketing, or pricing, may limit our potential revenue, and we may need to revise our research and development programs. The
pricing and reimbursement environment may change in the future and become more challenging due to several reasons including new healthcare legislation or regulation and
fiscal challenges faced by government health administration authorities. Specifically, in both the U.S. and some foreign jurisdictions, there have been a number of legislative
and regulatory proposals to change the health care system in ways that could affect our ability to sell our products profitably.

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

We  may  be  subject,  directly  or  indirectly,  to  federal,  state,  and  foreign  healthcare  laws  and  regulations,  including  fraud  and  abuse  laws,  false  claims  laws  and  health
information privacy and security laws. If we are unable to comply, or have not fully complied, with such laws, we could face substantial penalties.

If  we  obtain  FDA  approval  for  any  of  our  product  candidates  and  begin  commercializing  those  products  in  the  United  States,  our  operations  will  be  directly,  or  indirectly
through our prescribers, customers, and purchasers, subject to various federal and state laws and regulations, including, without limitation, the federal Anti-Kickback Statute,
the federal civil and criminal false claims act, the civil monetary penalties statute, HIPAA, and the Physician Payments Sunshine Act and regulations. These laws are further
described in the U.S. Biologic Products Development Process section of this annual report. These laws will impact, among other things, our proposed sales, marketing, and
educational programs. In addition, we may be subject to data privacy laws by both the federal government and the states in which we conduct our business. Failure to comply
with these laws could result in penalties, including civil and criminal penalties, damages, fines, the curtailment or restructuring of operations, the exclusion from participation in
federal and state healthcare programs, debarment from government contracting or refusal of orders under existing contracts, corporate integrity agreements or consent decrees,
disgorgement,  contractual  damages,  reputational  harm,  diminished  profits  and  future  earnings,  and  imprisonment.  Furthermore,  efforts  to  ensure  that  business  activities  and
business arrangements comply with applicable healthcare laws and regulations can be costly. Comparable laws and regulations apply internationally.

48

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

Numerous foreign, federal, and state laws and regulations govern collection, dissemination, use and confidentiality of personally identifiable health information, including state
privacy  and  confidentiality  laws  (including  state  laws  requiring  disclosure  of  breaches),  HIPAA  and  the  European  Union’s  General  Data  Protection  Regulation  (“GDPR”).
These laws and regulations are increasing in complexity and number and may change frequently and sometimes conflict.

HIPAA  establishes  a  set  of  national  privacy  and  security  standards  for  the  protection  of  individually  identifiable  health  information,  including  protected  health  information
(“PHI”),  by  health  plans,  certain  healthcare  clearinghouses  and  healthcare  providers  that  submit  certain  covered  transactions  electronically,  or  covered  entities,  and  their
“business  associates,”  which  are  persons  or  entities  that  perform  certain  services  for,  or  on  behalf  of,  a  covered  entity  that  involve  creating,  receiving,  maintaining  or
transmitting PHI. While we are not currently a covered entity or business associate under HIPAA, we may receive identifiable information from these entities. Failure to protect
this information properly could subject us to HIPAA’s criminal penalties, which may include fines up to $250,000 per violation and/or imprisonment.

GDPR imposes numerous requirements on entities that process personal data in the context of an establishment in the European Economic Area (“EEA”) or that process the
personal  data  of  data  subjects  who  are  located  in  the  EEA.  These  requirements  include,  for  example,  establishing  a  basis  for  processing,  providing  notice  to  data  subjects,
developing procedures to vindicate expanded data subject rights, implementing appropriate technical and organizational measures to safeguard personal data, and complying
with restrictions on the cross-border transfer of personal data from the EEA to countries that the European Union does not consider to have in place adequate data protection
legislation, such as the United States. GDPR additionally establishes heightened obligations for entities that process “special categories” of personal data, such as health data.
Nearly all clinical trials involve the processing of these “special categories” of personal data, and thus processing of personal data collected during the course of clinical trials is
subject to heightened protections under GDPR.

Moreover, California recently adopted the California Consumer Privacy Act of 2018 (“CCPA”), which went into effect in January 2020. The CCPA has been characterized as
the first “GDPR-like” privacy statute to be enacted in the United States because it mirrors a number of the key provisions of the GDPR. The CCPA establishes a new privacy
framework for covered businesses in the State of California, by creating an expanded definition of personal information, establishing new data privacy rights for consumers
imposing special rules on the collection of consumer data from minors, and creating a new and potentially severe statutory damages framework for violations of the CCPA and
for businesses that fail to implement reasonable security procedures and practices to prevent data breaches.

The legislative and regulatory landscape for privacy and data security continues to evolve, and there has been an increasing focus on privacy and data security issues which may
affect  our  business.  Failure  to  comply  with  current  and  future  laws  and  regulations  could  result  in  government  enforcement  actions  (including  the  imposition  of  significant
penalties), criminal and/or civil liability for us and our officers and directors, private litigation and/or adverse publicity that negatively affects our business.

49

 
 
 
 
 
 
 
 
Security breaches and other disruptions could compromise our information and expose us to liability, which would cause our business and reputation to suffer.

In the ordinary course of our business, we collect and store sensitive data, including intellectual property, our proprietary business information and that of our suppliers and
business partners, as well as personally identifiable information of clinical trial participants and employees. Similarly, our business partners and third-party providers possess
certain  of  our  sensitive  data. The  secure  maintenance  of  this  information  is  critical  to  our  operations  and  business  strategy.  Despite  our  security  measures,  our  information
technology  and  infrastructure  may  be  vulnerable  to  attacks  by  hackers  or  breached  due  to  employee  error,  malfeasance,  or  other  disruptions.  Any  such  breach  could
compromise our networks and the information stored there could be accessed, publicly disclosed, lost, or stolen. If such an event were to occur and cause interruptions in our
operations, it could result in a disruption of our development programs and our business operations, whether due to a loss of our trade secrets or other proprietary information or
other  similar  disruptions.  For  example,  the  loss  of  clinical  trial  data  from  completed  or  future  clinical  trials  could  result  in  delays  in  our  regulatory  approval  efforts  and
significantly  increase  our  costs  to  recover  or  reproduce  the  data.  To  the  extent  that  any  disruption  or  security  breach  were  to  result  in  a  loss  of,  or  damage  to,  our  data  or
applications,  or  inappropriate  disclosure  of  confidential  or  proprietary  information,  we  could  incur  liability,  our  competitive  position  could  be  harmed,  and  the  further
development and commercialization of our product candidates could be delayed.

Our business could suffer if we lose the services of, or fail to attract, key personnel.

We  depend  highly  upon  the  efforts  of  our  senior  management.  The  loss  of  the  services  of  these  individuals  could  delay  or  prevent  the  achievement  of  our  research,
development, marketing, or product commercialization objectives. We do not have employment contracts with our other key personnel. We do not maintain any “key-man”
insurance policies on any of our key employees and we do not intend to obtain such insurance. In addition, due to the specialized scientific nature of our business, we are highly
dependent  upon  our  ability  to  attract  and  retain  qualified  scientific  and  technical  personnel  and  consultants.  There  is  intense  competition  among  major  pharmaceutical  and
chemical  companies,  specialized  biotechnology  firms  and  universities  and  other  research  institutions  for  qualified  personnel  in  the  areas  of  our  activities  and  we  may  be
unsuccessful in attracting and retaining these personnel.

We have experienced turnover in our senior management team, and the loss of one or more of our executive officers or key employees or an inability to attract and retain
highly skilled employees could adversely affect our business.

Our  success  depends  largely  upon  the  continued  services  of  our  key  executive  officers.  We  have  in  the  past  and  may  in  the  future  experience  changes  in  our  executive
management  team  resulting  from  the  departure  of  executives  or  subsequent  hiring  of  new  executives,  which  may  be  disruptive  to  our  business.  To  continue  to  develop  our
pipeline and execute our strategy, we also must attract and retain highly skilled personnel in our industry.

50

 
 
 
 
 
 
 
 
Trends toward managed health care, health technology assessment, and downward price pressures on medical products and services may limit our ability to profitably sell
any drugs that we may develop.

Lower prices for pharmaceutical products or reduced profitability may result from:

● third-party-payers’ increasing  challenges  to  the  prices  charged  for  medical  products  and  services,  including  by  limiting  coverage  and  reimbursement  and  requiring

payment of increased manufacturer rebates;

● the trend toward managed health care in the U.S. and the concurrent growth of HMOs and similar organizations that can control or significantly influence the purchase

of healthcare services and products; and

● state, federal, and foreign legislative proposals to control drug prices, reform healthcare or reduce government insurance programs.

The  cost  containment  measures  that  healthcare  providers  are  instituting,  including  practice  protocols  and  guidelines  and  clinical  pathways,  and  the  effect  of  any  healthcare
reform, could limit our ability to profitably sell any drugs that we may successfully develop. Moreover, any future legislation or regulation, if any, relating to the healthcare
industry or third-party coverage and reimbursement, may cause our business to suffer.

Risks related to our intellectual property

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

We rely upon licenses to certain patent rights and proprietary technology from third parties that are important or necessary to the development of our technology and products,
including  technology  related  to  our  manufacturing  process  and  our  product  candidates.  These  and  other  licenses  may  not  provide  exclusive  rights  to  use  such  intellectual
property and technology in all relevant fields of use and in all territories in which we may wish to develop or commercialize our technology and products in the future. As a
result, we may not be able to prevent competitors from developing and commercializing competitive products in territories included in all of our licenses. These licenses may
also require us to grant back certain rights to licensors and to pay certain amounts relating to sublicensing patent and other rights under the agreement.

In some circumstances, particularly in-licenses with academic institutions, we may not have the right to control the preparation, filing and prosecution of patent applications, or
to maintain the patents, covering in-licensed technologies. Therefore, in those cases we cannot be certain that these patents and applications will be prosecuted, maintained and
enforced in a manner consistent with the best interests of our business. If our licensors fail to maintain such patents, or lose rights to those patents or patent applications, the
rights we have licensed may be reduced or eliminated and our right to develop and commercialize any of our products that are the subject of such licensed rights could be
adversely affected. In certain circumstances, we have or may license technology from third parties on a non-exclusive basis. In such instances, other licensees may have the
right to enforce our licensed patents in their respective fields, without our oversight or control. Those other licensees may choose to enforce our licensed patents in a way that
harms our interest, for example, by advocating for claim interpretations or agreeing on invalidity positions that conflict with our positions or our interest. In addition to the
foregoing, the risks associated with patent rights that we license from third parties will also apply to patent rights we may own in the future.

Further, in many of our license agreements we are responsible for bringing any actions against any third party for infringing the patents we have licensed. Certain of our license
agreements  also  require  us  to  meet  development  milestones  to  maintain  the  license,  including  establishing  a  set  timeline  for  developing  and  commercializing  products  and
minimum  yearly  diligence  obligations  in  developing  and  commercializing  the  product.  Disputes  may  arise  regarding  intellectual  property  subject  to  a  licensing  agreement,
including:

● the scope of rights granted under the license agreement and other interpretation-related issues;
● the extent to which our technology and processes infringe intellectual property rights of the licensor that are not subject to the licensing agreement;
● the sublicensing of patent and other rights under our collaborative development relationships;
● our diligence obligations under the license agreement and what activities satisfy those diligence obligations;

51

 
 
 
 
 
 
 
 
 
 
 
 
● the inventorship or ownership of inventions and know-how resulting from the joint creation or use of intellectual property by our licensors and us and our partners; and
● the priority of invention of patented technology.

If any dispute over in-licensed intellectual property prevents or impairs our ability to maintain our current licensing arrangements on acceptable terms, we may be unable to
successfully develop and commercialize the affected product candidates.

If we fail to comply with our obligations under these license agreements, or we are subject to a bankruptcy, the licensor may have the right to terminate the license, in which
event  we  would  not  be  able  to  develop,  manufacture,  or  market  products  covered  by  the  license  or  may  face  other  penalties  under  the  agreements.  Termination  of  these
agreements or reduction or elimination of our rights under these agreements may result in our having to negotiate new or reinstated agreements with less favorable terms or
cause us to lose our rights under these agreements, including our rights to important intellectual property or technology. It is possible that such termination may occur even if
we believe that we have complied with our obligations under a license agreement, if a dispute arises between us and a licensor. Our license agreement with REGENXBIO had
granted us an exclusive worldwide license (subject to certain non-exclusive rights previously granted for MPS IIIA), with rights to sublicense, to use REGENXBIO’s NAV
AAV9 capsid in gene therapies for treating MPS IIIA, MPS IIIB, CLN1 Disease, and CLN3 Disease. On May 2, 2020, REGENXBIO terminated the license agreement. We
filed  an  arbitration  claim  against  REGENXBIO  relating  to  $28  million  plus  interest  that  REGENXBIO  argues  remains  due  following  the  agreement’s  termination.  An
arbitration hearing before a tribunal of three arbitrators of the American Arbitration Association (“AAA”) was held on March 8 and March 9, 2021. The tribunal has not yet
issued its opinion, and based on the post-hearing schedule an opinion is expected in late second quarter 2021 or early third quarter 2021. We may not prevail in the arbitration
proceeding. Even if we do prevail, it is possible that REGENXBIO may in the future assert that our proposed products infringe one or more of REGENXBIO’s AAV9 patent
claims, and we still may ultimately need a license to use the AAV9 capsid in our proposed MPS IIIA, MPS IIIB, and CLN3 products, if such a product is commercialized
before the expiration of one or more REGENXBIO patent claims that cover our commercial product. Absent such a license, if we are found to infringe a REGENXBIO AAV9
patent claim before the expiration of a relevant REGENXBIO patent, it is possible that a court may enjoin the sale of one or more of our proposed AAV9-based products, order
us to pay a less favorable royalty rate to REGENXBIO than the royalty rate in the original license agreement, or order us to pay other damages.

Furthermore, to the extent that the research resulting in certain of our licensed patent rights and technology was funded by the U.S. government, the government may have
certain rights, or march-in rights, to such patent rights and technology. When new technologies are developed with U.S. government funding, the U.S. government generally
obtains certain rights in any resulting patents, including a non-exclusive, royalty-free license authorizing the U.S. government, or a third party on its behalf, to use the invention
for non-commercial purposes. These rights may permit the government to disclose our confidential information to third parties and to exercise march-in rights to use or allow
third parties to use our licensed technology. The U.S. 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 United
States. Any exercise by the government, or a third party on its behalf, of such rights could harm our competitive position, business, financial condition, results of operations and
prospects.

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

Our  success  depends,  in  large  part,  on  our  and  our  licensors’  ability  to  obtain  and  maintain  patent  protection  in  the  United  States  and  other  countries  with  respect  to  our
proprietary product candidates and manufacturing technology. We and our licensors have sought, and we intend to seek in the future, to protect our proprietary positions by
filing patent applications in the United States and abroad related to many of our novel technologies and product candidates that are important to our business.

52

 
 
 
 
 
 
 
 
The patent prosecution process is expensive, time-consuming and complex, and we may not have and may not in the future be able to file, prosecute, maintain, enforce, or
license all necessary or desirable patent applications at a reasonable cost or in a timely manner. For example, in some cases, the work of certain academic researchers in the
gene therapy field has entered the public domain, which may compromise our ability to obtain patent protection for certain inventions related to or building upon such prior
work. Consequently, we will not be able to obtain any such patents to prevent others from using our technology for, and developing and marketing competing products to treat,
these indications. It is also possible that we will fail to identify patentable aspects of our research and development output before it is too late to obtain patent protection.

The patent position of biotechnology and pharmaceutical companies generally is highly uncertain, involves complex legal and factual questions and has, in recent years, been
the subject of much litigation. As a result, the issuance, scope, validity, enforceability, and commercial value of our and our licensors’ patent rights are highly uncertain. Our
pending  and  future  patent  applications  may  not  result  in  patents  being  issued  which  protect  our  technology  or  product  candidates  or  which  effectively  prevent  others  from
commercializing  competitive  technologies  and  product  candidates.  In  particular,  during  prosecution  of  any  patent  application,  the  issuance  of  any  patents  based  on  the
application may depend upon our ability to generate additional preclinical or clinical data that support the patentability of our proposed claims. We may not be able to generate
sufficient additional data on a timely basis, or at all. Changes in either the patent laws or interpretation of the patent laws in the United States and other countries may diminish
the value of our patents or narrow the scope of our and our licensors’ patent protection.

We may not be aware of all third-party intellectual property rights potentially relating to our product candidates. Publications of discoveries in the scientific literature often lag
the actual discoveries, and patent applications in the United States and other jurisdictions are typically not published until 18 months after filing or, in some cases, not at all.

Therefore, we cannot be certain that we were the first to make the inventions claimed in any owned or any licensed patents or pending patent applications, or that we were the
first to file for patent protection of such inventions. Databases for patents and publications, and methods for searching them, are inherently limited, so it is not practical to
review and know the full scope of all issued and pending patent applications. As a result, the issuance, scope, validity, enforceability, and commercial value of our and our
licensed patent rights are uncertain.

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

The issuance of a patent is not conclusive as to its inventorship, scope, validity or enforceability, and our patents may be challenged in the courts or patent offices in the United
States and abroad. Such challenges may result in loss of exclusivity or in patent claims being narrowed, invalidated, or held unenforceable, which could limit our ability to stop
others from using or commercializing similar or identical technology and products, or limit the duration of the patent protection of our technology and product candidates.
Given the amount of time required for the development, testing and regulatory review of new product candidates, patents protecting such candidates might expire before or
shortly  after  such  candidates  are  commercialized.  As  a  result,  our  intellectual  property  may  not  provide  us  with  sufficient  rights  to  exclude  others  from  commercializing
products similar or identical to ours.

Our intellectual property licenses with third parties may be subject to disagreements over contract interpretation, which could narrow the scope of our rights to the relevant
intellectual property or technology or increase our financial or other obligations to our licensors.

The  agreements  under  which  we  currently  license  intellectual  property  or  technology  from  third  parties  are  complex,  and  certain  provisions  in  such  agreements  may  be
susceptible to multiple interpretations. The resolution of any contract interpretation disagreement that may arise could narrow what we believe to be the scope of our rights to
the relevant intellectual property or technology or increase what we believe to be our financial or other obligations under the relevant agreement, either of which could harm our
business, financial condition, results of operations and prospects.

53

 
 
 
 
 
 
 
 
 
 
We may not be successful in obtaining necessary rights to our product candidates through acquisitions and in-licenses.

We currently have rights to certain intellectual property, through licenses from third parties, to develop our product candidates. Because our programs may require the use of
proprietary rights held by third parties, the growth of our business likely will depend, in part, on our ability to acquire, in-license or use these proprietary rights. We may be
unable to acquire or in-license any compositions, methods of use, processes, or other intellectual property rights from third parties that we identify as necessary for our product
candidates. The licensing or acquisition of third-party intellectual property rights is a competitive area, and several more established companies may pursue strategies to license
or acquire third-party intellectual property rights that we may consider attractive. These established companies may have a competitive advantage over us due to their size,
capital resources and greater clinical development and commercialization capabilities. In addition, companies that perceive us to be a competitor may be unwilling to assign or
license rights to us. We also may be unable to license or acquire third-party intellectual property rights on terms that would allow us to make an appropriate return on our
investment.

We  sometimes  collaborate  with  non-profit  and  academic  institutions  to  accelerate  our  preclinical  research  or  development  under  written  agreements  with  these  institutions.
Typically, these institutions provide us with an option to negotiate a license to any of the institution’s rights in technology resulting from the collaboration. Regardless of such
option, we may be unable to negotiate a license within the specified timeframe or under terms that are acceptable to us. If we are unable to do so, the institution may offer the
intellectual property rights to other parties, potentially blocking our ability to develop our program.

If we are unable to successfully obtain rights to required third-party intellectual property rights or maintain the existing intellectual property rights we have, we may be required
to expend significant time and resources to redesign our product candidates or the methods for manufacturing them or to develop or license replacement technology, all of
which may not be feasible on a technical or commercial basis. If we are unable to do so, we may be unable to develop or commercialize the affected product candidates, which
could harm our business significantly.

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

Periodic  maintenance  fees,  renewal  fees,  annuity  fees  and  various  other  government  fees  on  patents  and/or  applications  will  be  due  to  be  paid  to  the  USPTO  and  various
government  patent  agencies  outside  of  the  United  States  over  the  lifetime  of  our  licensed  patents  and/or  applications  and  any  patent  rights  we  may  own  in  the  future.  We
generally rely on our outside counsel or our licensing partners to pay these fees due to non-U.S. patent agencies. The USPTO and various non-U.S. government patent agencies
require compliance with several procedural, documentary, fee payment and other similar provisions during the patent application process. We employ reputable law firms and
other professionals to help us comply and we are also dependent on our licensors to take the necessary action to comply with these requirements with respect to our licensed
intellectual property. In many cases, an inadvertent lapse can be cured by payment of a late fee or by other means in accordance with the applicable rules. There are situations,
however, in which non-compliance can result in abandonment or lapse of the patent or patent application, resulting in partial or complete loss of patent rights in the relevant
jurisdiction. In such an event, potential competitors might be able to enter the market and this circumstance could harm our business.

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

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

Many companies have encountered significant problems in protecting and defending intellectual property rights in foreign jurisdictions. The legal systems of certain countries,
particularly  certain  developing  countries,  do  not  favor  the  enforcement  of  patents,  trade  secrets  and  other  intellectual  property  protection,  particularly  those  relating  to
biotechnology products, which could make it difficult for us to stop the infringement of our patents or marketing of competing products in violation of our proprietary rights
generally. For example, an April 2014 report from the Office of the United States Trade Representative identified a number of countries, including India and China, where
challenges to the procurement and enforcement of patent rights have been reported. Several countries, including India and China, have been listed in the report every year since
1989. Proceedings to enforce our patent rights in foreign jurisdictions could result in substantial costs and divert our efforts and attention from other aspects of our business,
could  put  our  patents  at  risk  of  being  invalidated  or  interpreted  narrowly  and  our  patent  applications  at  risk  of  not  issuing  and  could  provoke  third  parties  to  assert  claims
against us. We may not prevail in any lawsuits that we initiate, and the damages or other remedies awarded, if any, may not be commercially meaningful. Accordingly, our
efforts  to  enforce  our  intellectual  property  rights  around  the  world  may  be  inadequate  to  obtain  a  significant  commercial  advantage  from  the  intellectual  property  that  we
develop or license.

Issued patents covering our product candidates could be found invalid or unenforceable if challenged in court. We may not be able to protect our trade secrets in court.

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

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In addition to the protection afforded by patents, we rely on trade secret protection and confidentiality agreements to protect proprietary know-how that is not patentable or that
we elect not to patent, processes for which patents are difficult to enforce and any other elements of our product candidate discovery and development processes that involve
proprietary know-how, information or technology that is not covered by patents. However, trade secrets can be difficult to protect. Some courts inside and outside the United
States are less willing or unwilling to protect trade secrets. We seek to protect our proprietary technology and processes, in part, by entering into confidentiality agreements with
our employees, consultants, scientific advisors, collaborators, contractors, and other third-parties. We cannot guarantee that we have entered into such agreements with each
party that may have or have had access to our trade secrets or proprietary technology and processes. We also seek to preserve the integrity and confidentiality of our data and
trade secrets by maintaining physical security of our premises and physical and electronic security of our information technology systems. While we have confidence in these
individuals, organizations and systems, agreements or security measures may be breached, and we may not have adequate remedies for any breach. In addition, our trade secrets
may otherwise become known or be independently discovered by competitors.

Third-parties may initiate legal proceedings alleging that we are infringing their intellectual property rights, the outcome of which would be uncertain and could harm our
business.

Our commercial success depends upon our ability and the ability of our collaborators to develop, manufacture, market and sell our product candidates and use our proprietary
technologies without infringing the proprietary rights and intellectual property of third parties. The biotechnology and pharmaceutical industries are characterized by extensive
and  complex  litigation  regarding  patents  and  other  intellectual  property  rights.  We  may  become  party  to,  or  threatened  with,  infringement  litigation  claims  regarding  our
product candidates and technology, including claims from competitors or from non-practicing entities that have no relevant product revenue and against whom our own patent
portfolio may have no deterrent effect. Moreover, we may become party to, or be threatened with, adversarial proceedings or litigation regarding intellectual property rights
with respect to our product candidates and technology, including interference or derivation proceedings, post grant review and inter partes review before the USPTO or foreign
patent offices. Third parties may assert infringement claims against us based on existing patents or patents that may be granted in the future, regardless of their merit. There is a
risk that third parties may choose to engage in litigation with us to enforce or to otherwise assert their patent rights against us. Even if we believe such claims are without merit,
a court of competent jurisdiction could hold that these third-party patents are valid, enforceable, and infringed, which could adversely affect our ability to commercialize our
product candidates or any other of our product candidates or technologies covered by the asserted third-party patents. In order to successfully challenge the validity of any such
U.S. patent in federal court, we would need to overcome a statutory presumption of validity. As this burden is a high one requiring us to prove by clear and convincing evidence
the invalidity of any such U.S. patent claim, there is no assurance that a court of competent jurisdiction would invalidate the claims of any such U.S. patent. Similar challenges
exist in other jurisdictions. If we are found to infringe a third-party’s valid and enforceable intellectual property rights, we could be required to obtain a license from such third-
party  to  continue  developing,  manufacturing,  and  marketing  our  product  candidates  and  technology.  However,  we  may  not  be  able  to  obtain  any  required  license  on
commercially reasonable terms, or at all. Even if we were able to obtain a license, it could be non-exclusive, thereby giving our competitors and other third parties access to the
same technologies licensed to us, and it could require us to make substantial licensing and royalty payments. We could be forced, including by court order, to cease developing,
manufacturing, and commercializing the infringing technology or product candidates. In addition, we could be found liable for monetary damages, including treble damages
and attorneys’ fees, if we are found to have willfully infringed a patent or other intellectual property right. A finding of infringement could prevent us from manufacturing and
commercializing our product candidates or force us to cease some of our business operations, which could harm our business. In addition, we may be forced to redesign our
product  candidates,  seek  new  regulatory  approvals,  and  indemnify  third  parties  pursuant  to  contractual  agreements.  Claims  that  we  have  misappropriated  the  confidential
information or trade secrets of third parties could have a similar negative impact on our business, reputation, financial condition, results of operations and prospects.

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Intellectual property litigation could cause us to spend substantial resources and distract our personnel from their normal responsibilities.

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

We  may  be  subject  to  claims  asserting  that  our  employees,  consultants,  or  advisors  have  wrongfully  used  or  disclosed  alleged  trade  secrets  of  their  current  or  former
employers or claims asserting ownership of what we regard as our own intellectual property.

Many of our employees, consultants or advisors are currently, or were previously, employed at universities or other biotechnology or pharmaceutical companies, including our
competitors or potential competitors. Although we try to ensure that our employees, consultants, and advisors do not use the proprietary information or know-how of others in
their work for us, we may be subject to claims that these individuals or we have used or disclosed intellectual property, including trade secrets or other proprietary information,
of any such individual’s current or former employer. Litigation may be necessary to defend against these claims. If we fail in defending any such claims, in addition to paying
monetary  damages,  we  may  lose  valuable  intellectual  property  rights  or  personnel.  Even  if  we  are  successful  in  defending  against  such  claims,  litigation  could  result  in
substantial costs and be a distraction to management.

In  addition,  while  it  is  our  policy  to  require  our  employees  and  contractors  who  may  be  involved  in  the  conception  or  development  of  intellectual  property  to  execute
agreements assigning such intellectual property to us, we may be unsuccessful in executing such an agreement with each party who, in fact, conceives or develops intellectual
property that we regard as our own. The assignment of intellectual property rights may not be self-executing or the assignment agreements may be breached, and we may be
forced to bring claims against third parties, or defend claims that they may bring against us, to determine the ownership of what we regard as our intellectual property.

If we fail in prosecuting or defending any such claims, in addition to paying monetary damages, we may lose valuable intellectual property rights or personnel. Even if we are
successful in prosecuting or defending against such claims, litigation could result in substantial costs and be a distraction to management.

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Changes in U.S. patent law could diminish the value of patents in general, thereby impairing our ability to protect our product candidates.

Our success depends heavily on intellectual property, especially on patents. Obtaining and enforcing patents in the gene therapy industry involves both technological and legal
complexity. Therefore, obtaining and enforcing patents is costly, time-consuming, and inherently uncertain.

As of 2013, the United States transitioned to a “first-to-file” system for deciding which party should be granted a patent when two or more patent applications claiming the
same invention are filed by different parties. A third party that files a patent application in the USPTO before us could therefore be awarded a patent covering an invention of
ours even if we made the invention before it was made by the third party. The change to “first-to-file” from “first-to-invent” is one of the changes to the patent laws of the U.S.
resulting from the Leahy-Smith America Invents Act (the “AIA”). Among some of the other significant changes to the patent laws are changes that limit where a patentee may
file  a  patent  infringement  suit  and  provide  opportunities  for  third  parties  to  challenge  any  issued  patent  in  the  USPTO  via  procedures  including  post-grant  and  inter partes
review. These adversarial actions at the USPTO review patent claims without the presumption of validity afforded to U.S. patents in lawsuits in U.S. federal courts and use a
lower burden of proof than that used in litigation in U.S. federal courts. Therefore, it is generally considered easier for a competitor or third party to have a patent invalidated in
a USPTO post-grant review or inter partes review proceeding than in a litigation in a U.S. federal court. If any of our patents are challenged by a third party in such a USPTO
proceeding, there is no guarantee that we or our licensors or collaborators will be successful in defending the patent, which would result in a loss of the challenged patent right.
The AIA and its implementation could increase the uncertainties and costs surrounding the prosecution of our patent applications and the enforcement or defense of any issued
patents, all of which could harm our business and financial condition.

We also may be subject to a third-party pre-issuance submission of prior art to the USPTO or become involved in other contested proceedings such as opposition, derivation,
reexamination, inter partes review, post-grant review or interference proceedings challenging our patent rights or the patent rights of others. An adverse determination in any
such  submission,  proceeding  or  litigation  could  reduce  the  scope  of,  or  invalidate,  our  patent  rights,  allow  third  parties  to  commercialize  our  technology  or  products  and
compete directly with us, without payment to us, or result in our inability to manufacture or commercialize products without infringing third-party patent rights. In addition, if
the breadth or strength of protection provided by our patents and patent applications is threatened, it could dissuade companies from collaborating with us to license, develop or
commercialize current or future products.

If we do not obtain patent term extension and data exclusivity for our product candidates, our business may be harmed.

Depending upon the timing, duration and specifics of any FDA marketing approval of our product candidates, one or more of our U.S. patents may be eligible for limited patent
term extension (“PTE”) under the Drug Price Competition and Patent Term Restoration Act of 1984 (the “Hatch-Waxman Amendments”). The Hatch-Waxman Amendments
permit a PTE of up to five years as compensation for patent term lost during the FDA regulatory review process. PTE cannot extend the remaining term of a patent beyond a
total of 14 years from the date of product approval, only one patent may be extended per FDA-approved product, and only those claims covering the approved drug, a method
for using it or a method for manufacturing it may be extended. Further, certain of our licenses currently or in the future may not provide us with the right to control decisions of
the licensor or its other licensees with respect to PTE under the Hatch-Waxman Act. Thus, if one of our important licensed patents is eligible for PTE, and it covers a product of
another licensee in addition to our own product candidate, we may not be able to obtain that extension if the other licensee seeks and obtains that extension first. Moreover, we
may  not  be  granted  an  extension  because  of,  for  example,  failing  to  exercise  due  diligence  during  the  testing  phase  or  regulatory  review  process,  failing  to  apply  within
applicable deadlines, failing to apply prior to expiration of relevant patents or otherwise failing to satisfy applicable requirements, or the applicable time-period or the scope of
patent protection afforded during any such extension could be less than we request. If we are unable to obtain PTE or the duration of any such extension is less than we request,
the period during which we will have the right to exclusively market our product may be shortened and our competitors may obtain approval of competing products following
our patent expiration, and our revenue could be materially reduced.

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Intellectual property rights do not necessarily address all potential threats.

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

● others may be able to make gene therapy products that are similar to our product candidates but that are not covered by the claims of the patents that we license or may

own in the future;

● we, or  our  license  partners  or  current  or  future  collaborators,  might  not  have  been  the  first  to  make  the  inventions  covered  by  the  issued  patent  or  pending  patent

application that we license or may own in the future;

● we, or our license partners or current or future collaborators, might not have been the first to file patent applications covering certain of our or their inventions;
● others  may  independently  develop  similar  or  alternative  technologies  or  duplicate  any  of  our  technologies  without  infringing  our  owned  or  licensed  intellectual

property rights;

● it is possible that our pending patent applications or those that we may own in the future will not lead to issued patents;
● issued patents that we hold rights to may be held invalid or unenforceable, including as a result of legal challenges by our competitors;
● our competitors might conduct research and development activities in countries where we do not have patent rights and then use the information learned from such

activities to develop competitive products for sale in our major commercial markets;

● we may not develop additional proprietary technologies that are patentable;
● the patents of others may have an adverse effect on our business; and
● we may  choose  not  to  file  a  patent  application  for  certain  trade  secrets  or  know-how,  and  a  third  party  may  subsequently  file  a  patent  application  covering  such

intellectual property.

Should any of these events occur, they could significantly harm our business, financial condition, results of operations and prospects.

Risks relating to our financial condition and capital requirements

We have experienced a history of losses; we expect to incur future losses and we may be unable to obtain necessary additional capital to fund operations in the future.

We have recorded minimal revenue to date and have incurred an accumulated deficit of approximately $570.7 million through December 31, 2020. The net loss for the year
ended December 31, 2020 was $84.2 million, including a $32.9 million licensed technology impairment charge. Our losses have resulted principally from costs incurred in
research and development activities related to our efforts to develop clinical drug candidates, from losses due to derivatives and from the associated administrative costs.

We  require  substantial  capital  for  our  development  programs  and  operating  expenses,  to  pursue  regulatory  clearances  and  to  prosecute  and  defend  our  intellectual  property
rights. We expect to continue to incur significant expenses and increasing operating losses for the foreseeable future. We anticipate that our expenses will increase substantially
if and as we:

● continue our research and preclinical and clinical development of our product candidates;
● expand the scope of our current clinical studies for our product candidates;
● further develop the manufacturing process for our vectors or our product candidates;
● change or add additional manufacturers or suppliers;
● seek regulatory and marketing approvals for our product candidates that successfully complete clinical studies;
● seek to identify and validate additional product candidates;
● acquire or in-license other product candidates and technologies;
● make milestone or other payments under any license agreements;
● maintain, protect and expand our intellectual property portfolio;

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● establish  a  sales,  marketing  and  distribution  infrastructure  in  the  United  States  and  Europe  to  commercialize  any  products  for  which  we  may  obtain  marketing

approval;

● attract and retain skilled personnel;
● build  additional  infrastructure  to  support  our  operations  as  a  larger  public  company  and  our  product  development  and  planned  future  commercialization  efforts,

including manufacturing capacity; and

● experience any delays or encounter issues with any of the above.

The net losses we incur may fluctuate significantly from quarter to quarter and year to year, such that a period-to-period comparison of our results of operations may not be a
good indication of our future performance. In any particular quarter or quarters, our operating results could be below the expectations of securities analysts or investors, which
could cause our stock price to decline.

As of December 31, 2020, our cash, cash equivalents and short-term investments were $95.0 million. We expect that our existing cash and cash equivalents will be sufficient to
fund our business operations for the foreseeable future. However, our operating plan may change as a result of many factors currently unknown to us, and we may need to seek
additional  funds  sooner  than  planned,  through  public  or  private  equity,  government  or  other  third-party  funding,  marketing  and  distribution  arrangements  and  other
collaborations,  strategic  alliances  and  licensing  arrangements  or  a  combination  of  these  approaches.  In  any  event,  we  will  require  additional  capital  to  obtain  regulatory
approval  for,  and  to  commercialize,  our  product  candidates.  Even  if  we  believe  we  have  sufficient  funds  for  our  current  or  future  operating  plans,  we  may  seek  additional
capital if market conditions are favorable or if we have specific strategic objectives.

Any  additional  fundraising  efforts  may  divert  our  management  from  their  day-to-day  activities,  which  may  adversely  affect  our  ability  to  develop  and  commercialize  our
product candidates. In addition, we cannot guarantee that future financing will be available in sufficient amounts or on terms acceptable to us, if at all. Moreover, the terms of
any financing may adversely affect the holdings or the rights of our stockholders and the issuance of additional securities, whether equity or debt, by us, or the possibility of
such issuance, may cause the market price of our shares to decline. The sale of additional equity or convertible securities would dilute all of our stockholders. The incurrence of
indebtedness would result in increased fixed payment obligations and we may be required to agree to certain restrictive covenants, such as limitations on our ability to incur
additional debt, limitations on our ability to acquire, sell or license intellectual property rights and other operating restrictions that could adversely impact our ability to conduct
our business. We could also be required to seek funds through arrangements with collaborative partners or otherwise at an earlier stage than otherwise would be desirable and
we may be required to relinquish rights to some of our technologies or product candidates or otherwise agree to terms unfavorable to us, any of which may have a material
adverse effect on our business, operating results, and prospects.

If we are unable to obtain funding on a timely basis, we may be required to significantly curtail, delay, or discontinue one or more of our research or development programs or
the commercialization of any product candidates or be unable to expand our operations or otherwise capitalize on our business opportunities, as desired, which could materially
affect our business, financial condition, and results of operations.

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Our loan under the Paycheck Protection Program may not be forgiven or may subject us to challenges and investigations regarding qualification for the loan.

We have received loan proceeds in the amount of approximately $1.8 million under the PPP, which was established under the CARES Act and is administered by the SBA.
Under the terms of the CARES Act, PPP loan recipients can apply for loan forgiveness. The potential loan forgiveness for all or a portion of PPP loans is determined, subject to
limitations, based on the use of loan proceeds over the 24 weeks after the loan proceeds are disbursed for payment of payroll costs and any payments of mortgage interest, rent,
and utilities. The amount of loan forgiveness will be reduced if PPP loan recipients terminate employees or reduce salaries during the covered period. The unforgiven portion of
our  PPP  Loan,  if  any,  is  payable  over  two  years  at  an  interest  rate  of  1%,  with  a  deferral  of  principal  and  interest  payments  to  either  (i)  the  date  that  the  SBA  remits  the
borrower’s loan forgiveness amount to the lender or (ii) if the borrower does not apply for forgiveness, 10 months after the end of the borrower’s loan forgiveness covered
period. We believe that we have used the proceeds from the PPP Loan for purposes consistent with the PPP. While we currently believe that our use of the loan proceeds will
meet the conditions for forgiveness of the PPP Loan, there can be no assurance that forgiveness for any portion of the PPP Loan will be obtained.

Additionally, the PPP loan application required us to certify that the current economic uncertainty made the PPP loan request necessary to support our ongoing operations.
While we made this certification in good faith after analyzing, among other things, our financial situation and access to alternative forms of capital, and believe that we satisfied
all eligibility criteria for the PPP loans and that our receipt of the PPP loans is consistent with the broad objectives of the Paycheck Protection Program of the CARES Act, the
certification described above contains subjective criteria and is subject to interpretation. In addition, the SBA has stated that it is unlikely that a public company with substantial
market value and access to capital markets will be able to make the required certification in good faith. The lack of clarity regarding loan eligibility under the program has
resulted in significant media coverage and controversy with respect to public companies applying for and receiving loans. If, despite our good faith belief that we satisfied all
eligibility requirements for the PPP loan, the SBA concludes we have been ineligible to receive the PPP loan or in violation of any of the laws or regulations that apply to us in
connection with the PPP loan, including the False Claims Act, we may be subject to penalties, including significant civil, criminal, and administrative penalties and could be
required to repay the PPP loan. In the event that we seek forgiveness of all or a portion of the PPP Loan, we will also be required to make certain certifications that will be
subject to audit and review by government entities and could subject us to significant penalties and liabilities if found to be inaccurate. In addition, a review or audit by the SBA
or other government entity or claims under the False Claims Act could consume significant financial and management resources. Any of these events could harm our business,
results of operations or financial condition.

We do not have significant operating revenue and may never achieve profitability.

To date, we have funded our operations primarily through public offerings of our common stock. Our ability to achieve significant revenue or profitability depends upon our
ability to complete the development of our drug candidates, to develop and obtain patent protection and regulatory approvals for our drug candidates and to manufacture and
commercialize the resulting drugs. We are not expecting any significant revenues in the short-term from our products or product candidates. Furthermore, we may not be able to
ever  successfully  identify,  develop,  commercialize,  patent,  manufacture,  obtain  required  regulatory  approvals  or  market  any  products.  Moreover,  even  if  we  do  identify,
develop,  commercialize,  patent,  manufacture,  or  obtain  required  regulatory  approvals  to  market  additional  products,  we  may  not  generate  revenues  or  royalties  from
commercial  sales  of  these  products  for  a  significant  number  of  years,  if  at  all.  Therefore,  our  operations  are  subject  to  all  the  risks  inherent  in  the  establishment  of  a  new
business enterprise. In the next few years, we expect limited revenues from product sales, if any, and any amounts that we receive under strategic partnerships and research or
drug development collaborations that we may establish and, as a result, we may be unable to achieve or maintain profitability in the future or to achieve significant revenues in
order to fund our operations.

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Failure to achieve and maintain effective internal controls could have a material adverse effect on our business.

Effective internal controls are necessary for us to provide reliable financial reports. If we cannot provide reliable financial reports, our operating results could be harmed. All
internal  control  systems,  no  matter  how  well  designed,  have  inherent  limitations.  Therefore,  even  those  systems  determined  to  be  effective  can  provide  only  reasonable
assurance with respect to financial statement preparation and presentation.

Any failure to implement required new or improved controls, or difficulties encountered in their implementation, could harm our operating results, or cause us to fail to meet
our  reporting  obligations.  Failure  to  achieve  and  maintain  an  effective  internal  control  environment  could  cause  investors  to  lose  confidence  in  our  reported  financial
information, which could have a material adverse effect on our stock price. Failure to comply with Section 404 of the Sarbanes-Oxley Act could also potentially subject us to
actions or investigations by the SEC or other regulatory authorities.

We expect to continue to need to raise additional capital to operate our business, and our failure to obtain funding when needed or on terms that are favorable to us may
force us to delay, reduce or eliminate our development programs or aspects thereof.

We will need to raise additional capital to fund our future operations and we cannot be certain that funding will be available to us on acceptable terms on a timely basis, or at
all. Our ability to raise capital through the sale of securities may be limited by our number of authorized shares of common stock and various rules of the SEC and the Nasdaq
that place limits on the number and dollar amount of securities that we may sell. If we fail to raise additional funds on acceptable terms or at all, we may be unable to complete
planned preclinical and clinical trials or obtain approval of our product candidates from the FDA and other regulatory authorities. In addition, we could be forced to delay,
discontinue, or curtail product development, or forego licensing in attractive business opportunities. Any additional sources of financing will likely involve the issuance of our
equity or debt securities, which will have a dilutive effect on our stockholders.

Risks related to our common stock

The market price of our common stock may be volatile and adversely affected by several factors.

The market price of our common stock could fluctuate significantly in response to various factors and events, including:

● our ability to integrate operations, technology, products, and services;
● our ability to execute our business plan;
● operating results below expectations;
● announcements concerning product development results, including clinical trial results;
● regulatory or legal developments in the U.S. or EU, including decisions from regulatory agencies relating to our product candidates;
● litigation or public concern about the safety of our potential products;
● our issuance of additional securities, including debt or equity or a combination thereof, which will be necessary to fund our operating expenses;
● announcements of technological innovations or new products by us or our competitors;
● loss of any strategic relationship;
● industry developments, including, without limitation, changes in healthcare policies or practices or third-party reimbursement policies;
● economic and other external factors;
● period-to-period fluctuations in our financial results; and
● whether an active trading market in our common stock develops and is maintained.

In addition, the securities markets have from time-to-time experienced significant price and volume fluctuations that are unrelated to the operating performance of particular
companies. These market fluctuations may also materially and adversely affect the market price of our common stock.

62

 
 
 
 
 
 
 
 
 
 
 
 
 
Raising additional funds by issuing securities or through licensing or lending arrangements or through our at-the-market sale agreement may cause dilution to our
existing stockholders, restrict our operations, or require us to relinquish proprietary rights.

If we raise additional capital by issuing equity securities, the share ownership of existing stockholders will be diluted. Any future debt financing may involve covenants that,
among other restrictions, limit our ability to incur liens or additional debt, pay dividends, redeem, or repurchase our common stock, make certain investments or engage in
certain merger, consolidation, or asset sale transactions. In addition, if we raise additional funds through licensing arrangements or the disposition of any of our assets, it may be
necessary to relinquish potentially valuable rights to our product candidates or grant licenses on terms that are not favorable to us.

The terms of any financing may adversely affect the holdings or the rights of our stockholders and the issuance of additional securities, whether equity or debt, or the possibility
of such issuance, may cause the market price of our shares to decline. We may sell shares or other securities in other offerings, including under our open market sale agreement
with Jefferies, at a price per share that is less than the prices per share paid by other investors, and investors purchasing shares of our common stock or other securities in the
future could have rights superior to existing stockholders. The sale of additional equity or convertible securities would dilute all of our stockholders and the terms of these
securities  may  include  liquidation  or  other  preferences  that  adversely  affect  our  existing  stockholders.  For  example,  we  raised  capital  through  a  public  offering  of  equity
securities and pre-funded warrants in December 2019 pursuant to which existing stockholders incurred immediate dilution of $1.10 per share in as-adjusted net tangible book
value of common stock as a result of such offering.

We have not paid cash dividends in the past and do not expect to pay cash dividends in the foreseeable future. Any return on investment may be limited to the value of our
common stock.

We have never paid cash dividends on our common stock and do not anticipate paying cash dividends on our common stock in the foreseeable future. The payment of dividends
on our capital stock will depend on our earnings, financial condition and other business and economic factors affecting us at such time as the board of directors may consider
relevant. If we do not pay dividends, our common stock may be less valuable because a return on stockholder investment will only occur if the common stock price appreciates.

Our quarterly operating results may fluctuate significantly.

We expect our operating results to be subject to quarterly fluctuations. Our net loss and other operating results will be affected by numerous factors, including:

● variations in the level of expenses related to our development programs;
● addition or termination of clinical trials;
● any intellectual property infringement lawsuit or arbitration in which we are, or may become, involved;
● regulatory developments affecting our product candidates; and
● our execution of any collaborative, licensing or similar arrangements, and the timing of payments we may make or receive under these arrangements.

If our quarterly operating results fall below the expectations of investors or securities analysts, the price of our common stock could decline substantially. Furthermore, any
quarterly fluctuations in our operating results may, in turn, cause the price of our common stock to fluctuate substantially.

63

 
 
 
 
 
 
 
 
 
 
 
Provisions of our charter documents could discourage an acquisition of our company that would benefit our stockholders and may have the effect of entrenching, and
making it difficult to remove, management.

Provisions of our Certificate of Incorporation and Bylaws may make it more difficult for a third party to acquire control of us, even if a change in control would benefit our
stockholders. In particular, shares of our preferred stock may be issued in the future without further stockholder approval and upon such terms and conditions, and having such
rights, privileges and preferences, as our Board of Directors may determine, including, for example, rights to convert into our common stock. The rights of the holders of our
common stock will be subject to, and may be adversely affected by, the rights of the holders of any of our preferred stock that may be issued in the future. The issuance of our
preferred stock, 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 control of us. This could limit the price that certain investors might be willing to pay in the future for shares of our common stock and discourage these
investors from acquiring a majority of our common stock. Further, the existence of these corporate governance provisions could have the effect of entrenching management and
making it more difficult to change our management.

There can be no assurance that we will be able to comply with continued listing standards of the Nasdaq Capital Market.

The Nasdaq Capital Market’s continued listing standards for our common stock require, among other things, that (i) we maintain a closing bid price for our common stock of at
least $1.00, and (ii) we maintain: (A) stockholders’ equity of $2.5 million; (B) market value of listed securities of $35 million; or (C) net income from continuing operations of
$500,000 in the most recently completed fiscal year or in two of the last three most recently completed fiscal years. Any failures to satisfy any continued listing requirements
could lead to the receipt of a deficiency notice from the Nasdaq and ultimately to a delisting from trading of our common stock. We cannot be certain that we will be able to
continue to comply with the minimum bid price and the other standards that we are required to meet in order to maintain a listing of our common stock on the Nasdaq Capital
Market. Our failure to continue to meet these requirements may result in our common stock being delisted from the Nasdaq Capital Market. If our common stock were delisted
from the Nasdaq Capital Market, among other things, this could result in a number of negative implications, including reduced liquidity in our common stock as a result of the
loss  of  market  efficiencies  associated  with  the  Nasdaq  and  the  loss  of  federal  preemption  of  state  securities  laws  as  well  as  the  potential  loss  of  confidence  by  suppliers,
customers and employees, institutional investor interest, fewer business development opportunities, greater difficulty in obtaining financing and breaches of certain contractual
obligations.

As a result of the resignations of Stefano Buono, Stephen B. Howell, M.D., George Migausky, and Shawn Tomasello as members of the Board of Directors as of September 27,
2020, the Company does not at present comply with the Nasdaq Capital Market rules requiring (i) a Board of Directors comprised of a majority of independent directors and (ii)
a three-member audit committee comprised only of independent directors. The Company has until the earlier of the Company’s next annual shareholder meeting or September
27, 2021 to regain compliance.

Our ability to use our net operating loss carry forwards may be subject to limitation.

Generally, a change of more than 50% in the ownership of a company’s stock, by value, over a three-year period constitutes an ownership change for U.S. federal income tax
purposes. An ownership change may limit our ability to use our net operating loss carryforwards attributable to the period prior to the change. As a result, if we earn net taxable
income, our ability to use our pre-change net operating loss carryforwards to offset U.S. federal taxable income may become subject to limitations, which could potentially
result in increased future tax liability for us. As of December 31, 2020, we had net operating loss carryforwards aggregating approximately $290.8 million.

64

 
 
 
 
 
 
 
 
 
Ownership of our shares is concentrated in the hands of a few investors, which could limit the ability of our other stockholders to influence the direction of the Company.

As calculated by the SEC rules of beneficial ownership, SCO Capital Partners LLC and affiliates (“SCO Capital”) beneficially owned approximately 14% of our common stock
as of March 19, 2021. SCO Capital also has the right to nominate two individuals to serve as members of the Board pursuant to a director designation agreement dated as of
November 15, 2007 between Abeona and SCO. Accordingly, SCO Capital has the ability to significantly influence or determine the election of our directors or the outcome of
most  corporate  actions  requiring  stockholder  approval.  They  may  exercise  this  ability  in  a  manner  that  advances  their  best  interests  and  not  necessarily  those  of  our  other
stockholders.

ITEM 1B. UNRESOLVED STAFF COMMENTS

Not Applicable.

ITEM 2. PROPERTIES

Our corporate headquarters is located in New York, New York, where we currently lease 10,400 square feet of office space. That lease expires in January 2026. We also lease
45,300  square  feet  of  manufacturing,  laboratory  and  office  space  in  Cleveland,  Ohio.  That  lease  expires  in  December  2025.  We  lease  1,700  square  feet  of  office  space  in
Madrid, Spain. That lease expires in September 2021; we expect to renew this lease before it expires. We believe that our facilities are sufficient to meet our current needs and
that suitable space will be available as and when needed.

ITEM 3. LEGAL PROCEEDINGS

We are currently engaged in an arbitration proceeding with REGENXBIO regarding the former license agreement between the parties relating to use of the AAV9 capsid in our
MPS IIIA, MPS IIIB, CLN1, and CLN3 programs. The license terminated on May 2, 2020, and on May 25, 2020, we filed an arbitration claim with the American Arbitration
Association (“AAA”) alleging that REGENXBIO materially breached the license agreement prior to termination and seeking, among other things, a declaration that as a result
of REGENXBIO’s material breach, we are not responsible for payments totaling $28 million (which would otherwise have been due in 2020) plus accrued interest ($3.5 million
as of December 31, 2020). REGENXBIO disputes our arbitration claim and has filed a counterclaim seeking payment of these amounts. An arbitration hearing before a tribunal
of three AAA arbitrators was held on March 8 and March 9, 2021. The tribunal has not yet issued its opinion, and based on the post-hearing schedule an opinion is expected in
late second quarter 2021 or early third quarter 2021.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

65

 
 
 
 
 
 
 
 
 
 
 
 
PART II

ITEM 5.

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

Our common stock has traded on the Nasdaq Capital Market (“Nasdaq”) under the symbol “ABEO” since June 22, 2015.

We have never declared or paid any cash dividends on our common stock and we do not anticipate paying any cash dividends on our common stock in the foreseeable future.
The payment of dividends, if any, in the future is within the discretion of our Board of Directors and will depend on our earnings, capital requirements and financial condition
and other relevant facts. We currently intend to retain all future earnings, if any, to finance the development and growth of our business.

The number of record holders of our common stock as of March 19, 2021 was approximately 170.

Equity Compensation Plan Information

The  following  table  sets  forth,  as  of  December  31,  2020,  information  about  shares  of  common  stock  outstanding  and  available  for  issuance  under  our  existing  equity
compensation plans.

Plan Category

Equity compensation plans approved by security holders:

2015 Equity Incentive Plan
2005 Equity Incentive Plan
Equity compensation plans not approved by security holders

Total

Issuer Repurchases of Equity Securities

None.

Recent Sales of Unregistered Securities

None.

Number of securities
to 
be issued upon
exercise 
of outstanding
options, 
warrants and rights  
(a)

Weighted-average 
exercise price of 
outstanding options, 
warrants and rights  
(b)

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

5,560,739   
124,800   
-   
5,685,539   

$

$

2.21   
8.55   
-   
2.35   

6,339,370 
- 
- 
6,339,370 

66

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ITEM 6.

SELECTED FINANCIAL DATA

Not applicable.

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

The following discussion should be read in conjunction with our consolidated financial statements and related notes included in this Form 10-K.

Abeona is a clinical-stage biopharmaceutical company developing gene and cell therapies for life-threatening rare genetic diseases. Our lead clinical programs consist of: (i)
EB-101, an autologous, gene-corrected cell therapy for recessive dystrophic epidermolysis bullosa (“RDEB”), (ii) ABO-102, an adeno-associated virus (“AAV”)-based gene
therapy for Sanfilippo syndrome type A (“MPS IIIA”), and (iii) ABO-101, an AAV-based gene therapy for Sanfilippo syndrome type B (“MPS IIIB”). We continue to develop
additional AAV-based gene therapies designed to treat ophthalmic and other diseases and next-generation AAV-based gene therapies using the novel AIM™ capsid platform
that we have exclusively licensed from the University of North Carolina at Chapel Hill, and internal AAV vector research programs.

IMPACT OF COVID-19 PANDEMIC ON OUR BUSINESS

We continue to assess the evolving impact of the COVID-19 pandemic on our business and take appropriate actions to manage our spending activities and preserve our cash
resources. We continue to actively monitor the situation and may take further actions to adjust our business operations that we determine are in the best interests of our patients,
employees, suppliers and stockholders. While we are unable to determine or predict the extent, duration or scope of the overall impact the COVID-19 pandemic will have on
our business, operations, financial condition or liquidity, we believe it is important to keep our stakeholders informed about how our response to COVID-19 is progressing and
how our operations and financial condition may change.

Clinical Program Activities

We  remain  committed  to  advancing  our  clinical  programs  and  have  implemented  measures  to  minimize  disruption.  We  also  are  regularly  reassessing  plans  along  with
associated processes and policies to ensure our patients and employees are safe, and that continuity in our operations remains.

All  current  clinical  trial  sites  are  active.  We  are  also  providing  virtual  and  remote  follow-up  to  ensure  compliance  with  safety  oversight.  In  June  2020,  we  resumed  patient
enrollment in our Phase 3 VIITAL™ study of EB-101 after the study was paused in March 2020 to ensure the safety of study participants and site staff during the pandemic.
The ongoing Phase 1/2 clinical trials of our investigational AAV-based gene therapies for MPS IIIA and IIIB (ABO-102 and ABO-101, respectively) have continued to treat
patients.

Manufacturing Activities

Operations at our Cleveland manufacturing facility were significantly scaled back from March 2020 until early June 2020 to ensure the safety of employees and those around
them,  and  to  accommodate  reduced  manufacturing  and  clinical  development  activities.  We  had  paused  our  manufacturing  activities  for  EB-101  clinical  material,  pending
patient  enrollment,  as  well  as  our  AAV  manufacturing  and  process  development  activities.  During  this  pause  period,  we  took  the  opportunity  to  complete  maintenance  and
monitoring projects.

In  June  2020,  we  resumed  our  EB-101  manufacturing  activities,  including  process  development  for  the  internal  production  of  retrovirus  as  well  as  our  AAV  process
development and manufacturing activities.

67

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Business Operations

Many of the additional protective measures we instituted during the first quarter of 2020 in response to the COVID-19 pandemic remain in place, and we continue to regularly
assess and improve our safety practices and policies.

The extent of the impact of the COVID-19 pandemic on our business, operations, and clinical trials continues to evolve and will depend on certain developments, including: (i)
the duration of the declared health emergencies; (ii) future actions taken by governmental authorities and regulators with respect to the pandemic, including reinstituting state
and  local  lockdowns;  (iii)  the  impact  on  our  partners,  collaborators,  and  suppliers;  and  (iv)  actions  being  taken  by  us  in  response  to  this  crisis.  We  remain  dedicated  to
communicating regularly and openly with our stakeholders as more information becomes available, including updates on material changes to prior guidance as we continue to
follow applicable government, regulatory and institutional guidelines.

RESULTS OF OPERATIONS

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

License and other revenues for the year ended December 31, 2020 were $10.0 million, as compared to nil for the same period of 2019. The increase in revenue was due to
sublicense and inventory purchase agreements we entered into with Taysha Gene Therapies (“Taysha”) in August 2020 for ABO-202, an AAV gene therapy for CLN1 disease
(also  known  as  infantile  Batten  disease)  and  a  sublicense  agreement  we  entered  into  with  Taysha  in  October  2020  for  a  gene  therapy  for  Rett  syndrome  and  MECP2  gene
constructs and regulation of their expression. The agreements grant to Taysha worldwide exclusive rights to intellectual property developed by scientists at the University of
North Carolina at Chapel Hill, the University of Edinburgh and us, and our know-how relating to the research, development and manufacture of the gene therapies for CLN1
and Rett syndrome.

Total research and development spending for the year ended December 31, 2020 was $30.1 million, as compared to $48.6 million for the same period of 2019, a decrease of
$18.5 million. The decrease in expenses was primarily due to:

● decreased clinical and development work for our gene and cell therapy product candidates ($16.3 million), due to scaled back manufacturing, clinical and
non-clinical development activities resulting from the effects of the COVID-19 pandemic, as well as cost savings from the decision to internally manufacture
retrovirus for the EB-101 program;

● decreased salary and related costs ($1.7 million);
● decreased employee travel and related expenses ($0.3 million); and
● decreases in net other research and development spending ($0.2 million).

Total general and administrative expenses were $23.8 million for the year ended December 31, 2020, as compared to $20.7 million for the same period of 2019, an increase of
$3.1 million. The increase in expenses was due primarily to the following:

● increased salary and related costs ($1.8 million), including severance costs associated with management changes;
● increased professional fees ($1.0 million); and
● increases in net other general and administrative expenses ($0.3 million).

Depreciation and amortization was $4.6 million for the year ended December 31, 2020, as compared to $7.8 million for the same period in 2019, a decrease of $3.2 million. The
decrease was driven primarily by decreased amortization expense on licensed technology due to the write-off of the REGENXBIO licensed technology in the first quarter of
2020.

Our  license  agreement  with  REGENXBIO  terminated  on  May  2,  2020.  Since  our  impairment  testing  indicated  that  the  carrying  value  of  the  license  agreement  with
REGENXBIO exceeded its fair value, we recorded a $32.9 million non-cash impairment charge during the year ended December 31, 2020.

Interest and miscellaneous income was $1.3 million for the year ended December 31, 2020, as compared to $1.2 million of the same period in 2019.

68

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Interest and other expense was $4.1 million for the year ended December 31, 2020, as compared to $0.4 million for the same period of 2019. The increase results primarily
from accrued interest on the amounts that we may owe to REGENXBIO under the prior license agreement, which amount is subject to the arbitration discussed in Note 4 of
Notes to Consolidated Financial Statements in Part II, Item 8. As described in more detail in Note 4, we have filed an arbitration claim alleging that REGENXBIO materially
breached the license agreement and seeking, among other things, a declaration that we are not responsible for such payments.

Net loss for the year ended December 31, 2020 was $84.2 million, or a $0.91 basic and diluted loss per common share as compared to a net loss of $76.3 million, or a $1.51
basic and diluted loss per common share, for the same period in 2019. The increase in the net loss results primarily from the licensed technology impairment charge of $32.9
million, partially offset by increased license and other revenues along with decreased clinical and development expenses.

Liquidity and Capital Resources

We  have  historically  funded  our  operations  primarily  through  sales  of  common  stock.  The  COVID-19  pandemic  has  negatively  affected  the  global  economy  and  created
significant volatility and disruption of financial markets. An extended period of economic disruption could negatively affect our business, financial condition, and access to
sources of liquidity.

Our  principal  source  of  liquidity  is  cash,  cash  equivalents  and  short-term  investments.  As  of  December  31,  2020  and  2019,  our  cash,  cash  equivalents  and  short-term
investments  were  $95.0  million  and  $129.3  million,  respectively.  Based  upon  our  current  operating  plans,  we  believe  that  we  have  sufficient  resources  to  fund  operations
through at least the next 12 months with our existing cash, cash equivalents and short-term investments. We will need to secure additional funding in the future, to carry out all
our  planned  research  and  development  activities.  If  we  are  unable  to  obtain  additional  financing  or  generate  license  or  product  revenue,  the  lack  of  liquidity  and  sufficient
capital resources could have a material adverse effect on our future prospects.

As  of  December  31,  2020  and  2019,  our  working  capital  was  $55.8  million  and  $93.7  million,  respectively.  The  decrease  in  working  capital  resulted  primarily  from  $35.0
million of cash used for operating activities during the year ended December 31, 2020.

On May 2, 2020, we received loan proceeds in the amount of approximately $1.8 million (the “PPP Loan”) under the Paycheck Protection Program (“PPP”). The PPP was
established  under  the  Coronavirus  Aid,  Relief  and  Economic  Security  Act,  as  amended  (“CARES  Act”),  and  is  administered  by  the  U.S.  Small  Business  Administration
(“SBA”). Under the terms of the CARES Act, PPP loan recipients can apply for loan forgiveness. The potential loan forgiveness for all or a portion of PPP loans is determined,
subject to limitations, based on the use of loan proceeds over the 24 weeks after the loan proceeds are disbursed. The amount of loan forgiveness will be reduced if PPP loan
recipients terminate employees or reduce salaries during the covered period. The unforgiven portion of our PPP Loan, if any, is payable over two years at an interest rate of 1%,
with a deferral of principal and interest payments to either (i) the date that the SBA remits the borrower’s loan forgiveness amount to the lender or (ii) if the borrower does not
apply for forgiveness, 10 months after the end of the borrower’s loan forgiveness covered period. We believe that we have used the proceeds from our PPP Loan for purposes
consistent with the PPP. While we currently believe that our use of the loan proceeds will meet the conditions for forgiveness of our PPP Loan, there can be no assurance that
forgiveness for any portion of the PPP Loan will be obtained.

69

 
 
 
 
 
 
 
 
 
On December 24, 2019, we closed an underwritten public offering of 32,382,945 shares of common stock at a public offering price of $2.50 per share. In addition, as part of the
offering, we sold “pre-funded” warrants to purchase up to an aggregate of 9,017,055 shares of common stock at a purchase price of $2.4999 per pre-funded warrant, which
equals the public offering price per share of the common stock less the $0.0001 per share exercise price of each pre-funded warrant. The gross proceeds to the Company were
approximately $103.5 million, before deducting the underwriting discounts and commissions and estimated offering expenses payable by the Company. In October 2020, all of
the pre-funded warrants were exercised and converted into shares of common stock.

On August  17,  2018,  we  entered  into  an  open  market  sale  agreement  with  Jefferies  LLC.  Pursuant  to  the  terms  of  this  agreement,  we  may  sell  from  time  to  time,  through
Jefferies LLC, shares of our common stock for an aggregate sales price of up to $150 million. Any sales of shares pursuant to this agreement are made under our effective
“shelf” registration statement on Form S-3 that is on file with and has been declared effective by the SEC. We did not sell any shares of our common stock under this agreement
during the year ended December 31, 2020. During the year ended December 31, 2019, we sold 3,086,950 shares of our common stock under this agreement and received $17.0
million of proceeds.

License Agreement

On  November  4,  2018,  we  entered  into  a  license  agreement  with  REGENXBIO  to  obtain  rights  to  an  exclusive  worldwide  license  (subject  to  certain  non-exclusive  rights
previously granted for MPS IIIA), with rights to sublicense, to REGENXBIO’s NAV AAV9 vector for gene therapies for treating MPS IIIA, MPS IIIB, CLN1 Disease and
CLN3 Disease. Consideration for the rights granted under the original agreement included fees totaling $180 million and a running royalty on net sales, including: (i) an initial
fee  of  $20  million,  $10  million  of  which  was  due  to  REGENXBIO  shortly  after  the  effective  date  of  the  agreement,  and  $10  million  of  which  was  to  be  due  on  the  first
anniversary of the effective date of the agreement in November 2019, (ii) annual fees totaling up to $100 million, payable in $20 million annual installments beginning on the
second anniversary of the effective date (the first of which was to remain payable if the agreement were terminated before the second anniversary in November 2020), (iii) sales
milestone payments totaling $60 million, and (iv) royalties payable in the low double digits to low teens on net sales of products covered under the agreement. The license was
being amortized over the life of the patent of eight years. On November 1, 2019, we entered into an amendment of the original license agreement. The amended agreement
replaced the $10 million payment due on November 4, 2019 with a $3 million payment due on November 4, 2019 and an additional $8 million payment (which included $1
million of interest) that would have been due no later than April 1, 2020. That $8 million payment had been scheduled to be paid by April 1, 2020 and the $20 million that had
been due to be paid on November 4, 2020, and both were recorded as payable to licensor on the consolidated balance sheet. The Company has disputed that it is responsible for
the $8 million and $20 million payments, and those payments are the subject of a current arbitration between the Company and REGENXBIO.

Prior to the April 1, 2020 deadline, we engaged REGENXBIO in discussions in an attempt to renegotiate the financial terms of the agreement, but we were unable to reach a
mutual understanding that we believed would have been favorable for the Company or our programs, and we did not make the $8 million payment due by April 1, 2020. On
April 17, 2020, REGENXBIO sent us a written demand for the $8 million fee, payable within a 15-day cure period after receipt of the demand letter. The license terminated on
May 2, 2020, when the 15-day period expired. There were no penalties for early termination of the license. On May 25, 2020, we filed an arbitration claim with the American
Arbitration Association (“AAA”) alleging that REGENXBIO materially breached the license agreement prior to termination and seeking, among other things, a declaration that
as a result of REGENXBIO’s material breach, we are not responsible for payments totaling $28 million (which would otherwise have been due in 2020) plus accrued interest
(of $3.5 million as of December 31, 2020). REGENXBIO disputes our arbitration claim and has filed a counterclaim seeking payment of the $28 million plus interest, which
REGENXBIO argues remains due. An arbitration hearing before a tribunal of three AAA arbitrators was held on March 8 and March 9, 2021. The tribunal has not yet issued its
opinion, and based on the post-hearing schedule an opinion is expected in late second quarter 2021 or early third quarter 2021. For additional information, refer to Part I, Item
3. Legal Proceedings of this Form 10-K.

70

 
 
 
 
 
 
 
Since our inception, we have incurred negative cash flows from operations and have expended, and expect to continue to expend, substantial funds to complete our planned
product development efforts. We have not been profitable since inception and to date have received limited revenues from the sale of products. We expect to incur losses for the
next several years as we continue to invest in product research and development, preclinical studies, clinical trials, and regulatory compliance and cannot provide assurance that
we will ever be able to generate sufficient product sales or royalty revenue to achieve profitability on a sustained basis, or at all.

If we raise additional funds by selling additional equity securities, the relative equity ownership of our existing investors will be diluted, and the new investors could obtain
terms more favorable than previous investors. If we raise additional funds through collaborations, strategic alliances, or licensing arrangements with third parties, we may have
to relinquish valuable rights to our technologies, future revenue streams, research programs, or product candidates or grant licenses on terms that may not be favorable to us. If
we are unable to raise additional funds through equity or debt financing when needed, we may be required to delay, limit, or terminate our product development programs or
any future commercialization efforts or grant rights to develop and market product candidates to third parties that we would otherwise prefer to develop and market ourselves.

We are carefully and continually reassessing key business activities and all associated spending decisions as the COVID-19 pandemic continues to evolve. Nonetheless, we are
spending necessary funds on manufacturing activities and preclinical studies and clinical trials of potential products, including research and development with respect to our
acquired and developed technology. Our future capital requirements and adequacy of available funds depend on many factors, including:

● the evolving impact to our business, operations, and clinical programs from the COVID-19 pandemic and related effects on the U.S. and global economy;
● the successful development and commercialization of our gene and cell therapy and other product candidates;
● the ability to establish and maintain collaborative arrangements with corporate partners for the research, development, and commercialization of products;
● continued scientific progress in our research and development programs;
● the magnitude, scope and results of preclinical testing and clinical trials;
● the costs involved in filing, prosecuting, and enforcing patent claims;
● the costs involved in conducting clinical trials;
● competing technological developments;
● the cost of manufacturing and scale-up;
● the ability to establish and maintain effective commercialization arrangements and activities; and
● the successful outcome of our regulatory filings.

Due  to  uncertainties  and  certain  of  the  risks  described  above,  including  those  relating  to  the  COVID-19  pandemic,  our  ability  to  successfully  commercialize  our  product
candidates, our ability to obtain applicable regulatory approval to market our product candidates, our ability to obtain necessary additional capital to fund operations in the
future, our ability to successfully manufacture our products and our product candidates in clinical quantities or for commercial purposes, government regulation to which we are
subject, the uncertainty associated with preclinical and clinical testing, intense competition that we face, market acceptance of our products, the potential necessity of licensing
technology  from  third  parties  and  protection  of  our  intellectual  property,  it  is  not  possible  to  reliably  predict  future  spending  or  time  to  completion  by  project  or  product
category or the period in which material net cash inflows from significant projects are expected to commence. If we are unable to timely complete a particular project, our
research and development efforts could be delayed or reduced, our business could suffer depending on the significance of the project and we might need to raise additional
capital to fund operations, as discussed in the risks above.

We plan to continue our policy of investing any available funds in suitable certificates of deposit, money market funds, government securities and investment-grade, interest-
bearing securities. We do not invest in derivative financial instruments.

71

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Contractual Obligations

The following table summarizes our significant contractual obligations as of the payment due date by period as of December 31, 2020:

Operating leases
Payable to licensor

Payments Due by Period

Less than 1
year
1,713,000   
31,515,000   

$

1 to 3 years

4 to 5 years     After 5 years    

$

3,468,000   
-   

$

3,580,000    $

-   

87,000    $
-   

Total
8,848,000 
31,515,000 

We  enter  into  agreements  in  the  normal  course  of  business  with  clinical  research  organizations  for  clinical  trials  and  clinical  manufacturing  organizations  for  supply
manufacturing and with vendors for preclinical research studies and other services and products for operating purposes. These contractual obligations are cancelable at any time
by us, generally upon prior written notice to the vendor, and are thus not included in the contractual obligations table.

Operating lease amounts represent future minimum lease payments under our non-cancelable operating lease agreements. The minimum lease payments above do not include
any related common area maintenance charges or real estate taxes.

On  November  4,  2018,  we  entered  into  a  license  agreement  with  REGENXBIO  to  obtain  rights  to  an  exclusive  worldwide  license  (subject  to  certain  non-exclusive  rights
previously granted for MPS IIIA), with rights to sublicense, to REGENXBIO’s NAV AAV9 vector for gene therapies for treating MPS IIIA, MPS IIIB, CLN1 Disease and
CLN3 Disease. Consideration for the rights granted under the original agreement included fees totaling $180 million and a running royalty on net sales, including: (i) an initial
fee  of  $20  million,  $10  million  of  which  was  due  to  REGENXBIO  shortly  after  the  effective  date  of  the  agreement,  and  $10  million  of  which  was  to  be  due  on  the  first
anniversary of the effective date of the agreement in November 2019, (ii) annual fees totaling up to $100 million, payable in $20 million annual installments beginning on the
second anniversary of the effective date (the first of which was to remain payable if the agreement were terminated before the second anniversary in November 2020), (iii) sales
milestone payments totaling $60 million, and (iv) royalties payable in the low double digits to low teens on net sales of products covered under the agreement. On November 1,
2019, we entered into an amendment of the original license agreement. The amended agreement replaced the $10 million payment due on November 4, 2019 with a $3 million
payment due on November 4, 2019 and an additional $8 million payment (which included $1 million of interest) that would have been due no later than April 1, 2020. That $8
million payment had been scheduled to be paid by April 1, 2020 and the $20 million that had been due to be paid on November 4, 2020, and both were recorded as payable to
licensor on the consolidated balance sheet. The Company has disputed that it is responsible for the $8 million and $20 million payments, and those payments are the subject of
a current arbitration between the Company and REGENXBIO.

Prior to the April 1, 2020 deadline, we engaged REGENXBIO in discussions in an attempt to renegotiate the financial terms of the agreement, but we were unable to reach a
mutual understanding that we believed would have been favorable for the Company or our programs, and we did not make the $8 million payment due by April 1, 2020. On
April 17, 2020, REGENXBIO sent us a written demand for the $8 million fee, payable within a 15-day cure period after receipt of the demand letter. The license terminated on
May 2, 2020, when the 15-day period expired. There were no penalties for early termination of the license. On May 25, 2020, we filed an arbitration claim with the American
Arbitration Association (“AAA”) alleging that REGENXBIO materially breached the license agreement prior to termination and seeking, among other things, a declaration that
as a result of REGENXBIO’s material breach, we are not responsible for payments totaling $28 million (which would otherwise have been due in 2020) plus accrued interest
(of $3.5 million as of December 31, 2020). REGENXBIO disputes our arbitration claim and has filed a counterclaim seeking payment of the $28 million plus interest, which
REGENXBIO argues remains due. An arbitration hearing before a tribunal of three AAA arbitrators was held on March 8 and March 9, 2021. The tribunal has not yet issued its
opinion, and based on the post-hearing schedule an opinion is expected in late second quarter 2021 or early third quarter 2021. For additional information, refer to Part I, Item
3. Legal Proceedings of this Form 10-K.

72

 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
In  addition,  we  are  also  party  to  other  license  agreements,  which  include  contingent  payments.  However,  contingent  payments  related  to  these  license  agreements  are  not
disclosed as the satisfaction of these contingent payments is uncertain as of December 31, 2020 and, if satisfied, the timing of payment for these amounts was not reasonably
estimable as of December 31, 2020. Commitments related to the license agreements include contingent payments that will become payable if and when certain development,
regulatory and commercial milestones are achieved. During the next 12 months, we do not expect to make milestone payments related to such license agreements.

Critical Accounting Estimates

The preparation of our consolidated financial statements in conformity with accounting principles generally accepted in the U.S. requires us to make estimates and assumptions
that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements and the reported amount of revenues
and  expenses  during  the  reported  period.  In  applying  our  accounting  principles,  we  must  often  make  individual  estimates  and  assumptions  regarding  expected  outcomes  or
uncertainties.  As  one  might  expect,  the  actual  results  or  outcomes  are  often  different  than  the  estimated  or  assumed  amounts.  These  differences  are  usually  minor  and  are
included  in  our  consolidated  financial  statements  as  soon  as  they  are  known.  Our  estimates,  judgments  and  assumptions  are  continually  evaluated  based  on  available
information and experience. Because of the use of estimates inherent in the financial reporting process, actual results could differ from those estimates.

Leases

Effective  January  1,  2019,  we  adopted  the  provisions  of  ASU  2016-02,  Leases,  as  amended  (“ASC  842”)  using  the  cumulative-effect  adjustment  transition  method,  which
applies the provisions of the standard as of the effective date without adjusting the comparative periods presented. ASC 842 requires the recognition of lease assets and lease
liabilities by lessees for those leases classified as operating leases under the previous guidance of ASC 840, Leases. As a result of the adoption, we recorded operating lease
right-of-use assets of $8.9 million and operating lease liabilities of $8.9 million. The adoption had an immaterial impact on our net assets as of January 1, 2019. In addition, we
elected  the  package  of  practical  expedients  permitted  under  the  transition  guidance  within  the  new  standard,  which  allowed  us  to  carry  forward  the  historical  lease
classification.

We determine if an arrangement is a lease at inception. Right-of-use lease assets represent our right to use an underlying asset for the lease term and lease liabilities represent
our obligation to make lease payments arising from the lease. The classification of our leases as operating or finance leases along with the initial measurement and recognition
of the associated right-of-use assets and lease liabilities is performed at the lease commencement date. The measurement of lease liabilities is based on the present value of
future lease payments over the lease term. As our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at the lease
commencement date in determining the present value of future lease payments. The right-of-use asset is based on the measurement of the lease liability and includes any lease
payments  made  prior  to  or  on  lease  commencement  and  excludes  lease  incentives  and  initial  direct  costs  incurred,  as  applicable.  Rent  expense  for  our  operating  leases  is
recognized on a straight-line basis over the lease term. We do not have any leases classified as finance leases.

Our leases do not have significant rent escalation, holidays, concessions, material residual value guarantees, material restrictive covenants or contingent rent provisions. Our
leases include both lease (e.g., fixed payments including rent, taxes, and insurance costs) and non-lease components (e.g., common-area or other maintenance costs), which are
accounted for as a single lease component as we have elected the practical expedient to group lease and non-lease components for all leases. We have also elected the practical
expedient to exclude short-term leases from our right-of-use assets and lease liabilities.

Most leases include one or more options to renew. The exercise of lease renewal options is typically at our sole discretion; therefore, the majority of renewals to extend the
lease terms are not included in our right-of-use assets and lease liabilities as they are not reasonably certain of exercise. We regularly evaluate the renewal options and when
they are reasonably certain of exercise, we include the renewal period in our lease term.

73

 
 
 
 
 
 
 
 
 
 
Licensed Technology

We maintain licensed technology on our consolidated balance sheet until either the licensed technology agreement underlying it is completed or the asset becomes impaired.
When we determine that an asset has become impaired or we abandon a project, we write down the carrying value of the related intangible asset to its fair value and take an
impairment charge in the period in which the impairment occurs.

Generally, licensed technology is amortized over the life of the patent or the agreement. We test our intangible assets for impairment on an annual basis, or more frequently if
indicators are present or changes in circumstance suggest that impairment may exist. Events that could result in an impairment, or trigger an interim impairment assessment,
include  the  receipt  of  additional  clinical  or  nonclinical  data  regarding  our  drug  candidate  or  a  potentially  competitive  drug  candidate,  changes  in  the  clinical  development
program for a drug candidate or new information regarding potential sales for the drug. In connection with each annual impairment assessment and any interim impairment
assessment, we compare the fair value of the asset as of the date of the assessment with the carrying value of the asset on our consolidated balance sheet.

We considered the status of our discussions with REGENXBIO in March 2020 as a potential indicator of impairment in accordance with ASC 360-10-35-21. Our impairment
test indicated that the carrying value of the license agreement exceeded its fair value and we recorded a $32.9 million non-cash impairment charge in 2020.

In 2019, we did not impair any licensed technology.

Goodwill

As of December 31, 2020 and 2019, we recorded goodwill of $32.5 million on our consolidated balance sheet. In accordance with ASC 350 — Intangibles — Goodwill and
Other, goodwill is tested annually for impairment and whenever changes in circumstances occur that would indicate impairment.

In 2020 and 2019, we did not impair any goodwill.

Revenue Recognition

Effective January 1, 2018, we adopted ASU 2014-09, Revenue from Contracts with Customers, as amended (“ASC 606”), using the modified retrospective transition method.
The ASC 606 revenue recognition standard replaced the prior revenue recognition standard ASC 605, Revenue Recognition. Under ASC 606, we recognize revenue when our
customer obtains control of promised goods or services, in an amount that reflects the consideration which we expect to receive in exchange for those goods or services. To
determine revenue recognition for arrangements that we determine are within the scope of ASC 606, we perform the following five steps: (i) identify the contract(s) with our
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) we satisfy a performance obligation.

Sublicense and Inventory Purchase Agreements Relating to CLN1 Disease: In August 2020, we entered into sublicense and inventory purchase agreements with Taysha Gene
Therapies  (“Taysha”)  relating  to  a  potential  gene  therapy  for  CLN1  disease.  Under  the  sublicense  agreement,  Taysha  received  worldwide  exclusive  rights  to  intellectual
property  and  know-how  relating  to  the  research,  development,  and  manufacture  of  the  potential  gene  therapy,  which  we  had  referred  to  as  ABO-202.  Under  the  inventory
purchase agreement, we sold to Taysha certain inventory and other items related to ABO-202. We assessed these contracts at contract inception and determined that, under ASC
606,  the  two  contracts  would  be  combined  and  accounted  for  as  a  single  contract,  with  a  single  performance  obligation.  We  assessed  the  nature  of  the  promised  license  to
determine  whether  the  license  has  significant  stand-alone  functionality  and  evaluated  whether  such  functionality  can  be  retained  without  ongoing  activities  by  us  and
determined that the license has significant stand-alone functionality. Furthermore, we have no ongoing activities associated with the license to support or maintain the license’s
utility. Based on this, we determined that the pattern of transfer of control of the license to Taysha was at a point in time.

74

 
 
 
 
 
 
 
 
 
 
 
 
 
The transaction price of the contract includes (i) $7.0 million of fixed consideration, (ii) up to $26.0 million of variable consideration in the form of event-based milestone
payments,  (iii)  up  to  $30.0  million  of  variable  consideration  in  the  form  of  sales-based  milestone  payments,  and  (iv)  other  royalty-based  payments  based  on  net  sales.  The
event-based milestone payments are based on certain development and regulatory events occurring. We evaluated whether the milestone conditions have been achieved and if it
is probable that a significant revenue reversal would not occur before recognizing the associated revenue. We determined that these milestone payments are not within our
control or the licensee’s control, such as regulatory approvals, and are not considered probable of being achieved until those approvals are received. Accordingly, we have fully
constrained the $26.0 million of event-based milestone payments until such time that it is probable that significant revenue reversal would not occur. The sales-based milestone
payments and other royalty-based payments are based on a level of sales for which the license is deemed to be the predominant item to which the royalties relate. We will
recognize  revenue  for  these  payments  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 sales-based or royalty revenue resulting from this licensing arrangement.

Under this arrangement, we recognized $7.0 million of revenue during the year ended December 31, 2020, which amount related solely to fixed consideration. We do not have
any contract assets or contract liabilities as a result of this transaction.

Sublicense Agreement Relating to Rett Syndrome: In October 2020, we entered into a sublicense agreement with Taysha for a gene therapy for Rett syndrome and MECP2 gene
constructs and regulation of their expression. The agreement grants Taysha worldwide exclusive rights to intellectual property developed by scientists at the University of North
Carolina at Chapel Hill, the University of Edinburgh and us, and our know-how relating to the research, development, and manufacture of the gene therapy for Rett syndrome
and MECP2 gene constructs and regulation of their expression.

We  assessed  the  nature  of  the  promised  license  to  determine  whether  the  license  has  significant  stand-alone  functionality  and  evaluated  whether  such  functionality  can  be
retained without ongoing activities by us and determined that the license has significant stand-alone functionality. Furthermore, we have no ongoing activities associated with
the license to support or maintain the license’s utility. Based on this, we determined that the pattern of transfer of control of the license to Taysha was at a point in time.

The transaction price of the contract includes (i) $3.0 million of fixed consideration, (ii) up to $26.5 million of variable consideration in the form of event-based milestone
payments,  (iii)  up  to  $30.0  million  of  variable  consideration  in  the  form  of  sales-based  milestone  payments,  and  (iv)  other  royalty-based  payments  based  on  net  sales.  The
event-based milestone payments are based on certain development and regulatory events occurring. We evaluated whether the milestone conditions have been achieved and if it
is probable that a significant revenue reversal would not occur before recognizing the associated revenue. We determined that these milestone payments are not within our
control or the licensee’s control, such as regulatory approvals, and are not considered probable of being achieved until those approvals are received. Accordingly, we have fully
constrained the $26.5 million of event-based milestone payments until such time that it is probable that significant revenue reversal would not occur. The sales-based milestone
payments and other royalty-based payments are based on a level of sales for which the license is deemed to be the predominant item to which the royalties relate. We will
recognize  revenue  for  these  payments  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 sales-based or royalty revenue resulting from this licensing arrangement.

Under this arrangement, we recognized $3.0 million of revenue during the year ended December 31, 2020, which amount related solely to fixed consideration. We do not have
any contract assets or contract liabilities as a result of this transaction.

75

 
 
 
 
 
 
 
 
Foundation Revenues: Foundation revenues relate to a collaborative agreement between nine Sanfilippo foundations to provide up to approximately $13.9 million of grants to
Abeona in installments for the advancement of our clinical stage gene therapies for MPS IIIA and MPS IIIB, subject to the achievement of certain milestones. We have assessed
the ASC 606-10-25-27 criteria used to determine whether foundation revenue should be recognized over time and determined that our performance does not create an asset
with an alternative use to the foundations and we have an enforceable right to payment for performance completed to date. We determined that the input method based on costs
incurred in accordance with ASC 606-10-55-20 would be the most appropriate method for measuring progress. As a result, we have concluded that cash received upfront from
the foundations should be deferred on the balance sheet until the costs of the activities as outlined in the manufacturing and clinical work plan are incurred by installment as
outlined in the agreement with the foundations. Effectively, this matches the revenue up to the costs incurred by installment. Should the aggregate cash received exceed the
costs incurred by installment, the excess of aggregate cash over costs will be deferred. We have foundation revenue of $0.3 million recorded as deferred revenue on the balance
sheet as of December 31, 2020 and 2019. In 2020 and 2019, we did not record any foundation revenues since no milestones were achieved.

Accrued Research and Development Expenses

As part of the process of preparing our consolidated financial statements, we are required to estimate our accrued research and development expenses. This process involves
reviewing open contracts and purchase orders, communicating with our personnel to identify services that have been performed on our behalf and estimating the level of service
performed and the associated 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  advanced  payments.  We  make
estimates of our accrued expenses as of each balance sheet date in our consolidated financial statements based on facts and circumstances known to us at that time. 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 clinical expense. 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.

Share-Based Compensation Expense

We  account  for  share-based  compensation  expense  in  accordance  with  ASC  718,  Stock  Based  Compensation.  We  have  two  share-based  compensation  plans  under  which
incentive and qualified stock options and restricted shares may be granted to employees, directors, and consultants. We measure the cost of the employee/director/consultant
services received in exchange for an award of equity instruments based on the fair value for employees and directors and vesting date fair value of the award for consultants.
We use the Black-Scholes option pricing model to determine the fair value of options as of the grant date and the Hull White I lattice model as of any option repricing dates.
The models used to determine the fair value of options includes assumptions for expected volatility, risk-free interest rate, dividend yield and estimated expected term. We use
the closing price of our common stock as quoted on Nasdaq to determine the fair value of restricted stock. We account for forfeitures as they occur, which may result in the
reversal of compensation costs in subsequent periods as the forfeitures arise.

Stock  option-based  compensation  expense  recognized  for  the  years  ended  December  31,  2020  and  2019  was  approximately  $5.9  million  and  $7.3  million,  respectively.
Restricted stock-based compensation expense recognized for the years ended December 31, 2020 and 2019 was approximately $2.3 million and $0.9 million, respectively.

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Not applicable.

ITEM 8.

FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

Financial statements required by this Item are incorporated in this Annual Report Form 10-K on pages F-1 through F-21 hereto. Reference is made to Item 15 of this Form 10-
K.

76

 
 
 
 
 
 
 
 
 
 
 
 
ITEM 9.

CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

None.

ITEM 9A. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

Our  management,  with  the  participation  of  our  principal  executive  officer  and  principal  financial  officer,  has  evaluated  the  effectiveness  of  our  disclosure  controls  and
procedures (as defined in Rules 13a- 15(e) and 15d- 15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)), as of the end of the period covered by
this Annual Report on Form 10-K. Based on such evaluation, our principal executive officer and principal financial officer have concluded that as of such date, our disclosure
controls and procedures were effective.

Management’s Annual Report on Internal Control Over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting. Internal control over financial reporting is defined in Rules
13a-15(f) and 15d-15(f) promulgated under the Exchange Act as a process designed by, or under the supervision of, our principal executive and principal financial officers 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 our management and directors; and

● Provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of our assets that could have a material effect on
the financial statements. Under the supervision and with the participation of management, including our principal executive and financial officers, we assessed our
internal control over financial reporting as of December 31, 2020, based on criteria for effective internal control over financial reporting established in Internal Control
— Integrated Framework (2013), issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). Our management’s assessment of the
effectiveness  of  our  internal  control  over  financial  reporting  included  testing  and  evaluating  the  design  and  operating  effectiveness  of  our  internal  controls.  In  our
management’s opinion, we have maintained effective internal control over financial reporting as of December 31, 2020, based on criteria established in the COSO
2013 framework.

Because we are a non-accelerated filer and smaller reporting company, Whitley Penn LLP, our independent registered public accounting firm, is not required to attest to or issue
a report on the effectiveness of our internal control over financial reporting.

Inherent Limitations of Internal Controls

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

Changes in Internal Control over Financial Reporting

There have been no changes in our internal control over financial reporting, as such term is defined in Rules 13a-15(f) and 15(d)-15(f) promulgated under the Exchange Act,
during the fourth quarter of 2020 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

ITEM 9B. OTHER INFORMATION

None.

77

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

PART III

Directors and Reports of Beneficial Ownership. The information required by this Item is incorporated herein by reference from the information to be contained in our 2021
Proxy Statement to be filed with the SEC within 120 days after December 31, 2020 in connection with the solicitation of proxies for our 2021 Annual Meeting of Stockholders
(the “2021 Proxy Statement”).

Code of Ethics. We have adopted a Code of Business Conduct and Ethics (the “Code”) that applies to all of our employees (including executive officers) and directors. The
Code is available on our website at www.abeonatherapeutics.com  under  the  heading  “Investors  &  Media—Corporate  Governance—Governance—Governance  Documents.”
We intend to satisfy the disclosure requirement regarding any waiver of a provision of the Code applicable to any executive officer or director, by posting such information on
such website. We shall provide to any person without charge, upon request, a copy of the Code. Any such request must be made in writing to Abeona Therapeutics Inc., c/o
Investor Relations, 1330 Avenue of the Americas, 33rd Floor, New York, NY 10019.

Our corporate governance guidelines and the charters of the Audit Committee, Compensation Committee and Nominating and Corporate Governance Committee of the Board
of  Directors  are  available  on  our  website  at  www.abeonatherapeutics.com  under  the  heading  “Investors  &  Media—Corporate  Governance—Governance—Governance
Documents.” We shall provide to any person without charge, upon request, a copy of any of the foregoing materials. Any such request must be made in writing to Abeona
Therapeutics Inc., c/o Investor Relations, 1330 Avenue of the Americas, 33rd Floor, New York, NY 10019.

ITEM 11. EXECUTIVE COMPENSATION

The information required by this Item is contained in the 2021 Proxy Statement and is incorporated herein by reference.

ITEM 12.

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS

The information required by this Item is contained in the 2021 Proxy Statement and is incorporated herein by reference.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS AND DIRECTOR  INDEPENDENCE

The information required by this Item is contained in the 2021 Proxy Statement and is incorporated herein by reference.

ITEM 14.

PRINCIPAL ACCOUNTING FEES AND SERVICES

The information required by this Item is contained in the 2021 Proxy Statement and is incorporated herein by reference.

78

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ITEM 15. EXHIBITS, FINANCIAL STATEMENT SCHEDULES

PART IV

a. Financial Statements. The following financial statements are submitted as part of this report:

Report of Independent Registered Public Accounting Firm
Consolidated Balance Sheets at December 31, 2020 and 2019
Consolidated Statements of Operations and Comprehensive Loss for 2020 and 2019
Consolidated Statements of Stockholders’ Equity for 2020 and 2019
Consolidated Statements of Cash Flows for 2020 and 2019
Notes to Consolidated Financial Statements

b. Exhibits

Exhibit
Number   Description of Document

Page

F-1
F-2
F-3
F-4
F-5
F-6

3.1
3.2
4.1*
4.2*
4.3
10.1*
10.2*
10.3

  Restated Certificate of Incorporation of Abeona Therapeutics Inc. (incorporated by reference to Exhibit 3.1 of our Form 10-Q for the quarter ended March 31, 2019)
  Amended and Restated Bylaws of Abeona Therapeutics Inc. (incorporated by reference to Exhibit 3.1 of our Form 8-K filed on May 21, 2020)
  2015 Equity Incentive Plan (incorporated by reference to Exhibit 4.1 to our Form S-8 filed May 11, 2015)
  2015 Equity Incentive Plan Amendment (incorporated by reference to our Definitive Proxy Statement on Schedule 14A filed on April 4, 2016)
  Description of Capital Stock of Abeona Therapeutics Inc. (incorporated by reference to Exhibit 4.4 of our Form 10-K for the year ended December 31, 2019)
  401(k) Plan (incorporated by reference to Exhibit 10.20 of our Form 10-K for the year ended December 31, 1999)
  2005 Equity Incentive Plan (incorporated by reference to Exhibit 1 of our Proxy Statement filed on April 18, 2005)
  Director Designation Agreement dated November 15, 2007, between the Company and SCO Capital Partners LLC (incorporated by reference to Exhibit 10.26 of our

Form S-1 filed on March 11, 2008)

10.4

  Agreement and Plan of Merger, dated May 5, 2015, by and among the Company, PlasmaTech Merger Sub Inc., Abeona Therapeutics LLC and Paul A. Hawkins, in

his capacity as Member Representative (incorporated by reference to Exhibit 10.1 to our Form 10-Q for the quarter ended June 30, 2015)

10.5

  Form of Indemnification Agreement, between the Company and directors and officers of the Company (incorporated by reference to Exhibit 10.1 to our Form 8-K

filed on October 16, 2020)

10.6*

  Letter  Agreement,  dated  October  26,  2020,  between  the  Company  and  Michael  Amoroso  (incorporated  by  reference  to  Exhibit  10.1  of  our  Form  8-K  filed  on

October 30, 2020)

10.7*

  Offer Letter, effective October 19, 2018, by and between the Company and Edward Carr (incorporated by reference to Exhibit 10.1 of Form 8-K filed on November

9, 2018)

10.8*

  Letter Agreement, dated September 12, 2019, amending Offer Letter between the Company and Edward Carr, dated November 8, 2018 (incorporated by reference to

Exhibit 10.3 of our Form 10-Q for the quarter ended September 30, 2019)

10.9*

  Offer Letter, dated June 18, 2020, between the Company and Edward Carr (incorporated by reference to Exhibit 10.1 of our Form 8-K filed on June 23, 2020)

79

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
10.10

  Open Market Sale Agreement, dated August 17, 2018, by and between the Company and Jefferies LLC (incorporated by reference to Exhibit 1.1 of Form 8-K filed

on August 20, 2018)

10.11+   License Agreement, dated November 4, 2018, between the Company and REGENXBIO Inc. (incorporated by reference to Exhibit 10.18 of our Form 10-K for the

year ended December 31, 2018)

10.12†   First Amendment to License Agreement, dated November 4, 2019, between the Company and REGENXBIO Inc. (incorporated by reference to Exhibit 10.4 of our

21
23.1
31.1
31.2
32

101

Form 10-Q for the quarter ended September 30, 2019)

  Subsidiaries of the registrant
  Consent of Whitley Penn LLP
  Principal Executive Officer Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
  Principal Financial Officer Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
  Principal Executive Officer Certification and Principal Financial Officer Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the

Sarbanes-Oxley Act of 2002

  The following  materials  from  Abeona’s  Annual  Report  on  Form  10-K  for  the  year  ended  December  31,  2020,  formatted  in  Inline  XBRL  (Extensible  Business
Reporting Language): (i) Consolidated Balance Sheets at December 31, 2020 and 2019, (ii) Consolidated Statements of Operations and Comprehensive Loss for the
years ended December 31, 2020 and 2019, (iii) Consolidated Statements of Stockholders’ Equity for the years ended December 31, 2020 and 2019, (iv) Condensed
Consolidated Statements of Cash Flows for the years ended December 31, 2020 and 2019, and (v) Notes to Condensed Consolidated Financial Statements.

104

  Cover Page Interactive Data File (embedded within the Inline XBRL document and included in Exhibit 101).

* Management contract or compensatory plan required to be filed as an Exhibit to this Form pursuant to Item 15c of the report.
+ Portions of this exhibit were omitted and filed separately with the SEC pursuant to a request for confidential treatment.
† Certain identified information has been excluded from this exhibit pursuant to Item 601(b)(10)(iv) of Regulation S-K.

ITEM 16.

FORM 10-K SUMMARY

None.

80

 
 
 
 
 
 
Pursuant  to  the  requirements  of  Section  13  or  15(d)  of  the  Securities  Exchange  Act  of  1934,  the  registrant  has  duly  caused  this  report  to  be  signed  on  its  behalf  by  the
undersigned, thereunto duly authorized.

SIGNATURES

Date: March 24, 2021

Date: March 24, 2021

ABEONA THERAPEUTICS INC.

By:

By:

/s/ Michael Amoroso
Michael Amoroso
President, Chief Executive Officer and Director
Principal Executive Officer

/s/ Edward Carr
Edward Carr
Chief Accounting Officer
Principal Financial and Accounting Officer

Pursuant  to  the  requirements  of  the  Securities  Exchange  Act  of  1934,  this  Report  has  been  signed  below  by  the  following  persons  on  behalf  of  the  registrant  and  in  the
capacities and on the dates indicated.

Date: March 24, 2021

Date: March 24, 2021

Date: March 24, 2021

Date: March 24, 2021

Date: March 24, 2021

Date: March 24, 2021

By:

By:

/s/ Michael Amoroso
Michael Amoroso
President, Chief Executive Officer and Director
Principal Executive Officer

/s/ Edward Carr
Edward Carr
Chief Accounting Officer
Principal Financial and Accounting Officer

By:

/s/ Paul Mann
Paul Mann, Director

By: s/ Steven H. Rouhandeh

Steven H. Rouhandeh, Director
Chairman of the Board

By:

/s/ Christine Silverstein
Christine Silverstein, Director

By:

/s/ Todd Wider
Todd Wider, Director

81

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Board of Directors and Stockholders
Abeona Therapeutics Inc. and Subsidiaries

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Abeona Therapeutics and Subsidiaries (the “Company”) as of December 31, 2020 and 2019, and the related
consolidated statements of operations and comprehensive loss, stockholders’ equity and cash flows for the years then ended, and the related notes (collectively referred to as the
“financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31,
2020 and 2019, and the results of their operations and their cash flows for the years then ended, in conformity with accounting principles generally accepted in the United States
of America.

Basis for Opinion

These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these financial statements based on our audits.
We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (“PCAOB”) and are required to be independent with respect
to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about
whether the financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an
audit of its internal control over financial reporting. As part of our audits we are required to obtain an understanding of internal control over financial reporting, but not for the
purpose of expressing an opinion on the effectiveness of the entity’s internal control over financial reporting. Accordingly, we express no such opinion.

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

Critical Audit Matters

Critical  audit  matters  are  matters  arising  from  the  current  period  audit  of  the  financial  statements  that  were  communicated  or  required  to  be  communicated  to  the  audit
committee  and  that:  (1)  relate  to  accounts  or  disclosures  that  are  material  to  the  financial  statements  and  (2)  involved  our  especially  challenging,  subjective,  or  complex
judgments. We determined that there are no critical audit matters.

/s/ WHITLEY PENN LLP

We have served as the Company’s auditor since 2006.

Plano, Texas
March 24, 2021

F-1

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Abeona Therapeutics Inc. and Subsidiaries
CONSOLIDATED BALANCE SHEETS

ASSETS

December 31, 2020

December 31, 2019

Current assets:

Cash and cash equivalents
Short-term investments
Prepaid expenses and other current assets

Total current assets

Property and equipment, net
Right-of-use lease assets
Licensed technology, net
Goodwill
Other assets and restricted cash

Total assets

LIABILITIES AND STOCKHOLDERS’ EQUITY

Current liabilities:

Accounts payable
Accrued expenses
Current portion of lease liability
Current portion of loan payable
Payable to licensor
Deferred revenue

Total current liabilities

Loan payable
Long-term lease liabilities
Total liabilities

Commitments and contingencies
Stockholders’ equity:

Common stock - $0.01 par value; authorized 200,000,000 shares;  issued and outstanding 96,131,678 at
December 31, 2020;   issued and outstanding 83,622,135 at December 31, 2019;
Additional paid-in capital
Accumulated deficit
Accumulated other comprehensive loss

Total stockholders’ equity
Total liabilities and stockholders’ equity

$

$

$

$

$

$

$

12,596,000 
82,438,000 
2,708,000 
97,742,000 

11,322,000 
7,032,000 
1,500,000 
32,466,000 
1,136,000 
151,198,000 

4,695,000 
3,410,000 
1,713,000 
330,000 
31,515,000 
296,000 
41,959,000 

1,428,000 
5,260,000 
48,647,000 

129,258,000 
- 
3,132,000 
132,390,000 

13,157,000 
8,047,000 
36,178,000 
32,466,000 
1,144,000 
223,382,000 

3,763,000 
5,543,000 
1,699,000 
- 
27,400,000 
296,000 
38,701,000 

- 
6,251,000 
44,952,000 

961,000 
672,304,000 
(570,704,000)  
(10,000)  

102,551,000 
151,198,000 

$

836,000 
664,064,000 
(486,470,000)
- 
178,430,000 
223,382,000 

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

F-2

 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Abeona Therapeutics Inc. and Subsidiaries
CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS

Revenues:
License and other revenues
Total revenues

Expenses:
Research and development
General and administrative
Depreciation and amortization
Licensed technology impairment charge
Total expenses

Loss from operations

Interest and miscellaneous income
Interest and other expense
Net loss

Basic and diluted loss per common share

Weighted average number of common shares outstanding – basic and diluted

Other comprehensive loss:
Change in unrealized losses related to  available-for-sale debt securities
Comprehensive loss

For the years ended December 31,
2019
2020

10,000,000 
10,000,000 

$

30,139,000 
23,779,000 
4,586,000 
32,916,000 
91,420,000 

- 
- 

48,566,000 
20,705,000 
7,819,000 
- 
77,090,000 

(81,420,000)  

(77,090,000)

1,301,000 
(4,115,000)  
(84,234,000)  

(0.91)  

92,663,574 

(10,000)  
(84,244,000)  

$

$

$

1,208,000 
(400,000)
(76,282,000)

(1.51)

50,354,596 

- 
(76,282,000)

$

$

$

$

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

F-3

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
  
 
 
  
 
 
 
 
 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
Abeona Therapeutics Inc. and Subsidiaries
CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

Balance, December 31, 2018

Stock option-based compensation expense
Restricted stock-based compensation expense
Issuance of common stock and pre-funded warrants  in
connection with public offering, net of offering costs
Issuance of common stock under open market sale agreement  
Issuance of common stock in connection with the exercise of
stock options
Issuance of common stock in connection with restricted share
awards, net of cancellations
Shares returned in connection with arbitration 
 ruling on licensing agreement
Net loss
Balance, December 31, 2019

Stock option-based compensation expense
Restricted stock-based compensation expense
Issuance of common stock in connection with the 
exercise of stock options
Issuance of common stock in connection 
 with restricted share awards, net of cancellations
Issuance of common stock in connection with the 
 exercise of pre-funded warrants
Net loss
Other comprehensive loss
Balance, December 31, 2020

Common Stock

Additional
Paid-in

Accumulated    

Other

Total

    Accumulated     Comprehensive    Stockholders’ 

Shares

  47,944,486    $

Amount    
479,000   

Capital
$ 543,754,000   

Deficit
$ (410,188,000)  

$

Loss

-   
-   

-   
-   

7,338,000   
899,000   

  32,382,945   
  3,086,950   

324,000   
31,000   

  95,648,000   
  16,930,000   

303,129   

3,000   

966,000   

354,625   

4,000   

(4,000)  

-   
-   

-   
-   

-   

-   

(450,000)  
-   

  83,622,135    $

(5,000)  
-   
836,000   

(1,467,000)  
-   
$ 664,064,000   

-   
(76,282,000)  
$ (486,470,000)  

$

-   
-   

-   
-   

5,853,000   
2,334,000   

77,560   

1,000   

176,000   

  3,414,928   

34,000   

(34,000)  

-   
-   

-   

-   

Equity
$ 134,045,000 

7,338,000 
899,000 

95,972,000 
16,961,000 

969,000 

- 

(1,472,000)
(76,282,000)
$ 178,430,000 

5,853,000 
2,334,000 

177,000 

- 

-   

-   
-   

-   
-   

-   

-   

-   
-   
-   

-   
-   

-   

-   

  9,017,055   
-   
-   

  96,131,678    $

90,000   
-   
-   
961,000   

(89,000)  
-   
-   
$ 672,304,000   

-   
(84,234,000)  
-   
$ (570,704,000)  

$

-   
-   
(10,000)  
(10,000)  

1,000 
(84,234,000)
(10,000)
$ 102,551,000 

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

F-4

 
 
 
 
 
 
 
   
 
   
 
   
 
   
 
 
 
 
 
   
 
   
   
 
   
   
 
 
 
   
 
 
   
   
   
   
 
 
 
 
 
    
 
    
 
    
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
    
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Abeona Therapeutics Inc. and Subsidiaries
CONSOLIDATED STATEMENTS OF CASH FLOWS

Cash flows from operating activities:
Net loss
Adjustments to reconcile net loss to cash used in operating activities:

Non-cash licensed technology impairment charge
Depreciation and amortization
Stock option-based compensation expense
Restricted stock-based compensation expense
Non-cash interest expense
Accretion and interest on short-term investments
Accretion of right-of-use lease assets
Other

Change in operating assets and liabilities:

Receivables
Prepaid expenses and other current assets
Other assets
Accounts payable, accrued expenses and lease liabilities
Change in payable to licensor
Net cash used in operating activities

Cash flows from investing activities:
Capital expenditures
Acquisition of licensed technology
Purchases of short-term investments
Proceeds from maturities of short-term investments
Net cash (used in)/provided by investing activities

Cash flows from financing activities:
Proceeds from loan payable
Proceeds from issuance of common stock and pre-funded warrants in public offering, net of offering costs
Proceeds from open market sales of common stock
Proceeds from exercise of stock options
Net cash provided by financing activities

Net (decrease)/increase in cash, cash equivalents and restricted cash
Cash, cash equivalents and restricted cash at beginning of year
Cash, cash equivalents and restricted cash at end of year

Supplemental cash flow information:
Cash and cash equivalents
Restricted cash
Total cash, cash equivalents and restricted cash

Shares returned in connection with arbitration ruling on licensing agreement
Cash paid for interest
Cash paid for taxes

$

$

$

$
$
$

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

F-5

For the years ended December 31,
2019
2020

$

(84,234,000)  

$

(76,282,000)

32,916,000 
4,586,000 
5,853,000 
2,334,000 
600,000 
(70,000)  

1,015,000 
347,000 

- 
424,000 
(127,000)  
(2,178,000)  
3,515,000 
(35,019,000)  

(1,336,000)  

- 

(170,472,000)  
88,094,000 
(83,714,000)  

1,758,000 
1,000 
- 
177,000 
1,936,000 

(116,797,000)  
130,368,000 
13,571,000 

12,596,000 
975,000 
13,571,000 

- 
- 
- 

$

$

$

$
$
$

- 
7,819,000 
7,338,000 
899,000 
- 
(266,000)
858,000 
367,000 

81,000 
670,000 
3,000 
(1,707,000)
(2,600,000)
(62,820,000)

(6,309,000)
(199,000)
- 
66,484,000 
59,976,000 

- 
95,972,000 
16,961,000 
969,000 
113,902,000 

111,058,000 
19,310,000 
130,368,000 

129,258,000 
1,110,000 
130,368,000 

1,472,000 
- 
- 

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
Abeona Therapeutics Inc. and Subsidiaries

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

NOTE 1 - NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Nature of Operations

Abeona  Therapeutics  Inc.  (together  with  our  subsidiaries,  “we,”  “our,”  “Abeona”  or  the  “Company”),  a  Delaware  corporation,  is  a  clinical-stage  biopharmaceutical
company developing gene and cell therapies for life-threatening rare genetic diseases. Our lead clinical programs consist of: (i) EB-101, an autologous, gene-corrected cell
therapy for recessive dystrophic epidermolysis bullosa (“RDEB”), (ii) ABO-102, an adeno-associated virus (“AAV”)-based gene therapy for Sanfilippo syndrome type A
(“MPS IIIA”), and (iii) ABO-101, an AAV-based gene therapy for Sanfilippo syndrome type B (“MPS IIIB”). We continue to develop additional AAV-based gene therapies
designed to treat ophthalmic and other diseases and next-generation AAV-based gene therapies using the novel AIM™ capsid platform that we have exclusively licensed
from the University of North Carolina at Chapel Hill, and internal AAV vector research programs.

A summary of the significant accounting policies applied in the preparation of the accompanying consolidated financial statements follows:

Principles of Consolidation

The  consolidated  financial  statements  include  the  financial  statements  of  Abeona  Therapeutics  Inc.  and  our  wholly-owned  subsidiaries. All  intercompany  balances  and
transactions have been eliminated in consolidation.

Uses and Sources of Liquidity

The financial statements have been prepared on the going concern basis, which assumes the Company will have sufficient cash to pay its operating expenses, as and when
they become payable, for a period of at least 12 months from the date the financial report was issued.

As of December 31, 2020, we had cash, cash equivalents and short-term investments of $95.0 million and net assets of $102.6 million. For the year ended December 31,
2020, we had cash outflows from operations of $35.0 million. We have not generated significant product revenues and have not achieved profitable operations. There is no
assurance  that  profitable  operations  will  ever  be  achieved,  and,  if  achieved,  could  be  sustained  on  a  continuing  basis.  In  addition,  development  activities,  clinical  and
nonclinical testing, and commercialization of our products will require significant additional financing.

We  are  subject  to  a  number  of  risks  similar  to  other  life  science  companies,  including,  but  not  limited  to,  risks  related  to  the  successful  discovery  and  development  of
product  candidates,  obtaining  the  necessary  regulatory  approval  to  market  our  product  candidates,  raising  additional  capital  to  continue  to  fund  our  operations,
development of competing drugs and therapies, protection of proprietary technology and market acceptance of our products. As a result of these and other risks and the
related uncertainties, there can be no assurance of our future success.

Based upon our current operating plans, we believe that we have sufficient resources to fund operations through at least the next 12 months with our existing cash, cash
equivalents and short-term investments. We will need to secure additional funding in the future, to carry out all our planned research and development activities. If we are
unable to obtain additional financing or generate license or product revenue, the lack of liquidity and sufficient capital resources could have a material adverse effect on our
future prospects.

F-6

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Use of Estimates

The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP”) requires
management to make estimates and assumptions that affect the reported amount of assets and disclosure of contingent assets and liabilities at the date of the consolidated
financial statements and the reported amounts of revenue and expenses during the reported period. Actual results could differ from these estimates and assumptions.

Cash and Cash Equivalents

We  consider  all  highly  liquid  investments  with  a  maturity  of  three  months  or  less  when  purchased  to  be  cash  equivalents.  We  maintain  deposits  primarily  in  financial
institutions, which may at times exceed amounts covered by insurance provided by the U.S. Federal Deposit Insurance Corporation (“FDIC”). We have not experienced
any losses related to amounts in excess of FDIC limits.

Short-term Investments

Short-term investments consist of investments in U.S. government, U.S. agency and U.S. treasury securities. We determine the appropriate classification of the securities at
the time they are acquired and evaluate the appropriateness of such classifications at each balance sheet date. We classify our short-term investments as available-for-sale
pursuant to Accounting Standards Codification (“ASC”) 320, Investments – Debt and Equity Securities. Investments classified as current have maturities of less than one
year.  We  review  our  short-term  investments  for  other-than-temporary  impairment  whenever  the  fair  value  of  a  marketable  security  is  less  than  the  amortized  cost  and
evidence indicates that a short-term investment’s carrying amount is not recoverable within a reasonable period of time.

Property and Equipment

Property  and  equipment  are  recorded  at  cost.  Depreciation  is  provided  using  the  straight-line  method  over  estimated  useful  lives  ranging  from  three  to  seven  years  for
equipment and five to ten years for leasehold improvements. Expenditures for major renewals and betterments that extend the useful lives are capitalized. Expenditures for
normal maintenance and repairs are expensed as incurred. The cost of assets sold or abandoned, and the related accumulated depreciation are eliminated from the accounts
and any gains or losses are recognized in the accompanying consolidated statements of operations of the respective period.

F-7

 
 
 
 
 
 
 
 
 
 
 
 
Leases

We account for leases in accordance with ASC 842, Leases. Right-of-use lease assets represent our right to use an underlying asset for the lease term and lease liabilities
represent our obligation to make lease payments arising from the lease. The measurement of lease liabilities is based on the present value of future lease payments over the
lease term. As our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at the lease commencement date in
determining the present value of future lease payments. The right-of-use asset is based on the measurement of the lease liability and includes any lease payments made
prior to or on lease commencement and excludes lease incentives and initial direct costs incurred, as applicable. Rent expense for our operating leases is recognized on a
straight-line basis over the lease term. We do not have any leases classified as finance leases.

Our leases do not have significant rent escalation, holidays, concessions, material residual value guarantees, material restrictive covenants or contingent rent provisions.
Our leases include both lease (e.g., fixed payments including rent, taxes, and insurance costs) and non-lease components (e.g., common-area or other maintenance costs),
which are accounted for as a single lease component as we have elected the practical expedient to group lease and non-lease components for all leases.

Most leases include one or more options to renew. The exercise of lease renewal options is typically at our sole discretion; therefore, the majority of renewals to extend the
lease terms are not included in our right-of-use assets and lease liabilities as they are not reasonably certain of exercise. We regularly evaluate the renewal options and
when they are reasonably certain of exercise, we include the renewal period in our lease term.

Additional information and disclosures required under ASC 842 are included in Note 12.

Licensed Technology

We  have  entered  into  agreements  to  license  the  rights  to  certain  technologies.  We  recorded  the  purchase  price  paid  for  the  license,  which  represents  fair  value,  on  our
consolidated balance sheet. We maintain licensed technology on our consolidated balance sheet until either the licensed technology agreement underlying it is completed or
the asset becomes impaired. When we determine that an asset has become impaired or we abandon a project, we write down the carrying value of the related intangible
asset  to  its  fair  value  and  take  an  impairment  charge  in  the  period  in  which  the  impairment  occurs.  Licensed  technology  is  amortized  over  the  life  of  the  patent  or  the
agreement and periodically reviewed for impairment.

We test our intangible assets for impairment on an annual basis, or more frequently if indicators are present or changes in circumstance suggest that impairment may exist.
Events that could result in an impairment, or trigger an interim impairment assessment, include the receipt of additional clinical or nonclinical data regarding our drug
candidate or a potentially competitive drug candidate, changes in the clinical development program for a drug candidate or new information regarding potential sales for
the  drug.  In  connection  with  each  annual  impairment  assessment  and  any  interim  impairment  assessment,  we  compare  the  fair  value  of  the  asset  as  of  the  date  of  the
assessment with the carrying value of the asset on our consolidated balance sheet.

We  considered  the  status  of  our  discussions  with  REGENXBIO  in  March  2020  as  a  potential  indicator  of  impairment  in  accordance  with  ASC  360-10-35-21.  Our
impairment test indicated that the carrying value of the license agreement exceeded its fair value and we recorded a $32.9 million non-cash impairment charge in 2020. We
did not recognize any impairment charges to related licensed technology in 2019.

Goodwill

As of December 31, 2020 and 2019, goodwill of $32.5 million was recorded on the Company’s consolidated balance sheet. In accordance with ASC 350, Intangibles —
Goodwill and Other, goodwill  is  tested  annually  for  impairment  and  whenever  changes  in  circumstances  occur  that  would  indicate  impairment.  The  Company  did  not
recognize any impairment charges related to goodwill in 2020 or 2019.

F-8

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Restricted Cash

Restricted  cash  is  recorded  within  other  assets  and  restricted  cash  in  the  accompanying  consolidated  balance  sheets  and  is  included  as  a  component  of  cash,  cash
equivalents and restricted cash on our consolidated statements of cash flows.

Segments

The  Company  operates  in  a  single  segment.  The  Company’s  chief  operating  decision  maker,  its  Chief  Executive  Officer,  manages  the  Company’s  operations  on  a
consolidated basis for the purpose of allocating resources.

Revenue Recognition

We account for contracts with customers in accordance with ASC 606, Revenue from Contracts with Customers. ASC 606 applies to all contracts with customers, except
for contracts that are within the scope of other standards. Under ASC 606, an entity recognizes revenue when its customer obtains control of promised goods or services, in
an amount that reflects the consideration 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.

Additional information and disclosures required under ASC 606 are included in Note 8.

Research and Development Expenses

Research and development costs are expensed as incurred. Research and development expenses include, but are not limited to, payroll and personnel expense, lab supplies,
preclinical, development cost, clinical trial expense, manufacturing, and consulting. The cost of materials and equipment or facilities that are acquired for research and
development activities and that have alternative future uses are capitalized when acquired.

General and Administrative Expenses

General and administrative expenses primarily consist of personnel, contract personnel, personnel-related expenses to support our administrative and operating activities,
facility costs and professional expenses (i.e., legal expenses) and investor relations fees.

Income Taxes

Income  taxes  are  accounted  for  under  the  asset  and  liability  method.  Deferred  tax  assets  and  liabilities  are  recognized  for  the  future  tax  consequences  attributable  to
differences between the consolidated financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit
carryforwards.  Deferred  tax  assets  and  liabilities  are  measured  using  enacted  tax  rates  expected  to  apply  to  taxable  income  in  the  years  in  which  those  temporary
differences  are  expected  to  be  recovered  or  settled.  The  effect  on  deferred  tax  assets  and  liabilities  of  a  change  in  tax  rates  is  recognized  in  income  in  the  period  that
includes the enactment date. A valuation allowance is provided for deferred tax assets to the extent their realization is in doubt.

We account for uncertain income tax positions in accordance with ASC 740, Income Taxes. Interest costs and penalties related to income taxes are classified as interest
expense and general and administrative costs, respectively, in our consolidated financial statements. For 2020 and 2019, we did not recognize any uncertain tax positions,
interest or penalty expense related to income taxes. It is not reasonably likely for the amounts of unrecognized tax benefits to significantly increase or decrease within the
next 12 months. We file U.S. federal and state income tax returns as necessary. The federal return generally has a three-year statute of limitations and most states have a
four-year statute of limitations; however, the taxing authorities are allowed to review the tax year in which the net operating loss was generated when the loss is utilized on
a tax return. We currently do not have any open income tax audits.

F-9

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Loss Per Common Share

We have presented basic and diluted loss per common share on the statement of operations and comprehensive loss. Basic and diluted net loss per share is computed by
dividing  net  loss  by  the  weighted-average  number  of  shares  of  common  stock  and  shares  underlying  “pre-funded”  warrants  outstanding  during  the  period.  The  “pre-
funded” warrants were included in the computation of basic net loss per share as the exercise price was negligible and the warrants were fully vested and exercisable. In
October 2020, all of the 9,017,055 “pre-funded” warrants were exercised and converted into shares of common stock.

We do not include the potential impact of dilutive securities in diluted net loss per share, as the impact of these items is anti-dilutive. Potential dilutive securities result from
outstanding stock options, restricted stock and “non-pre-funded” warrants. We did not include the following potentially dilutive securities in the computation of diluted net
loss per common share during the periods presented:

Warrants
Restricted stock
Stock options
Total

Stock-Based Compensation

For the years ended December 31,

2020

2019

-   
2,952,499   
5,685,539   
8,638,038   

70,000 
354,625 
6,055,395 
6,480,020 

We  account  for  stock-based  compensation  expense  in  accordance  with  ASC  718,  Stock  Based  Compensation.  We  measure  the  cost  of  the  employee/director/consultant
services  received  in  exchange  for  an  award  of  equity  instruments  based  on  the  grant  date  fair  value  for  the  employees  and  directors  and  vesting  date  fair  value  for
consultants of the award. We use the Black-Scholes option pricing model to determine the fair value of options on the grant date which includes assumptions for expected
volatility, risk-free interest rate, dividend yield and estimated expected term. We use the closing price of our common stock as quoted on the Nasdaq to determine the fair
value of restricted stock. We account for forfeitures as they occur, which may result in the reversal of compensation costs in subsequent periods as the forfeitures arise.

The fair value of modifications to share-based awards are determined using Hull White I lattice model which includes assumptions for expected volatility, risk-free interest
rate, dividend yield and performance period. If a share-based compensation award is modified after the grant date, incremental compensation expense, if any, is recognized
in  an  amount  equal  to  the  excess  of  the  fair  value  of  the  modified  award  over  the  fair  value  of  the  original  award  immediately  before  the  modification.  Incremental
compensation  expense  for  vested  awards  is  recognized  immediately.  For  unvested  awards,  the  sum  of  the  incremental  compensation  expense  and  the  remaining
unrecognized compensation expense for the original award on the modification date is recognized over the modified service period.

The following table summarizes stock option-based option compensation for 2020 and 2019, which was allocated as follows:

Research and development
General and administrative
Stock option-based compensation expense included in operating expense

Total stock option-based compensation expense
Tax benefit
Stock option-based compensation expense, net of tax

F-10

For the years ended December 31,
2019
2020

$

$

3,126,000   
2,727,000   
5,853,000   

5,853,000   
-   
5,853,000   

$

$

3,932,000 
3,406,000 
7,338,000 

7,338,000 
- 
7,338,000 

 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
The following table summarizes restricted stock-based compensation for 2020 and 2019, which was allocated as follows:

Research and development
General and administrative
Restricted stock-based compensation expense included in operating expense

Total restricted stock-based compensation expense
Tax benefit
Restricted stock-based compensation expense, net of tax

Additional information and disclosures required under ASC 718 are included in Note 9.

NOTE 2 – SHORT-TERM INVESTMENTS

For the years ended December 31,
2019
2020

$

$

957,000   
1,377,000   
2,334,000   

2,334,000   
-   
2,334,000   

$

$

454,000 
445,000 
899,000 

899,000 
- 
899,000 

The following table summarizes the available-for-sale investments held as of December 31, 2020. There were no available-for-sale investments as of December 31, 2019.
Description
U.S. government and agency securities and treasuries

82,438,000 

Fair value

  $

The amortized cost of the available-for-sale investments, which is adjusted for amortization of premiums and accretion of discounts to maturity, was $82,448,000  as  of
December  31,  2020.  There  were  no  significant  realized  gains  or  losses  recognized  on  the  sale  or  maturity  of  available-for-sale  investments  during  the  years  ended
December 31, 2020 or 2019.

NOTE 3 - PROPERTY AND EQUIPMENT

Property and equipment consist of the following:

Laboratory equipment
Furniture and office equipment
Leasehold improvements
Construction work-in-progress

Less: accumulated depreciation and amortization
Property and equipment, net

December 31, 2020

December 31, 2019

8,160,000   
1,818,000   
8,602,000   
71,000   
18,651,000   
7,329,000   
11,322,000   

$

$

7,031,000 
1,710,000 
8,573,000 
- 
17,314,000 
4,157,000 
13,157,000 

$

$

Depreciation and amortization on property and equipment was $3.2 million and $2.6 million for 2020 and 2019, respectively.

F-11

 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOTE 4 – LICENSED TECHNOLOGY

On November 4, 2018, we entered into a license agreement with REGENXBIO Inc. (“REGENXBIO”) to obtain rights to an exclusive worldwide license (subject to certain
non-exclusive rights previously granted for MPS IIIA), with rights to sublicense, to REGENXBIO’s NAV AAV9 vector for gene therapies for treating MPS IIIA, MPS
IIIB, CLN1 Disease and CLN3 Disease. Consideration for the rights granted under the original agreement included fees totaling $180 million and a running royalty on net
sales, including: (i) an initial fee of $20 million, $10 million of which was due to REGENXBIO shortly after the effective date of the agreement, and $10 million of which
was to be due on the first anniversary of the effective date of the agreement in November 2019, (ii) annual fees totaling up to $100 million, payable in $20 million annual
installments  beginning  on  the  second  anniversary  of  the  effective  date  (the  first  of  which  was  to  remain  payable  if  the  agreement  were  terminated  before  the  second
anniversary in November 2020), (iii) sales milestone payments totaling $60 million, and (iv) royalties payable in the low double digits to low teens on net sales of products
covered under the agreement. The license was being amortized over the life of the patent of eight years.  On  November  1,  2019,  we  entered  into  an  amendment  of  the
original license agreement. The amended agreement replaced the $10 million payment due on November 4, 2019 with a $3 million payment due on November 4, 2019 and
an  additional  $8  million  payment  (which  included  $1  million  of  interest)  that  would  have  been  due  no  later  than  April  1,  2020.  That  $8  million  payment  had  been
scheduled  to  be  paid  by  April  1,  2020  and  the  $20 million  that  had  been  due  to  be  paid  on  November  4,  2020,  and  both  were  recorded  as  payable  to  licensor  on  the
consolidated balance sheet. The Company has disputed that it is responsible for the $8 million and $20 million payments, and those payments are the subject of a current
arbitration between the Company and REGENXBIO.

Prior to the April 1, 2020 deadline, we engaged REGENXBIO in discussions in an attempt to renegotiate the financial terms of the agreement, but we were unable to reach
a mutual understanding that we believed would have been favorable for the Company or our programs, and we did not make the $8 million payment due by April 1, 2020.
On  April  17,  2020,  REGENXBIO  sent  us  a  written  demand  for  the  $8 million  fee,  payable  within  a  15-day  cure  period  after  receipt  of  the  demand  letter.  The  license
terminated on May 2, 2020, when the 15-day period expired. There were no penalties for early termination of the license. On May 25, 2020, we filed an arbitration claim
with the American Arbitration Association (“AAA”) alleging that REGENXBIO materially breached the license agreement prior to termination and seeking, among other
things, a declaration that as a result of REGENXBIO’s material breach, we are not responsible for payments totaling $28 million (which would otherwise have been due in
2020) plus accrued interest ($3.5 million as of December 31, 2020). REGENXBIO disputes our arbitration claim and has filed a counterclaim seeking payment of the $28
million plus interest, which REGENXBIO argues remains due. An arbitration hearing before a tribunal of three AAA arbitrators was held on March 8 and March 9, 2021.
The  tribunal  has  not  yet  issued  its  opinion,  and  based  on  the  post-hearing  schedule  an  opinion  is  expected  in  late  second  quarter  2021  or  early  third  quarter  2021.
Additional information is included in Note 12.

We  considered  the  status  of  our  discussions  with  REGENXBIO  in  March  2020  as  a  potential  indicator  of  impairment  in  accordance  with  ASC  360-10-35-21.  Our
impairment test indicated that the carrying value of the license agreement exceeded its fair value and we recorded a $32.9 million non-cash impairment charge.

On  May  15,  2015,  we  acquired  Abeona  Therapeutics  LLC,  which  had  an  exclusive  license  through  Nationwide  Children’s  Hospital  to  the  AB-101  and  AB-102  patent
portfolios for developing treatments for patients with Sanfilippo Syndrome Type A and Type B. The license is amortized over the life of the license of 20 years.

F-12

 
 
 
 
 
 
 
 
 
Licensed technology consists of the following:

Licensed technology
Less accumulated amortization
Licensed technology, net

December 31, 2020

December 31, 2019

$

$

2,156,000    $
656,000   
1,500,000    $

42,606,000 
6,428,000 
36,178,000 

The aggregate estimated amortization expense for intangible assets remaining as of December 31, 2020 is as follows:

2021
2022
2023
2024
2025
Thereafter
Total

  $

  $

117,000 
117,000 
117,000 
117,000 
117,000 
915,000 
1,500,000 

Amortization on licensed technology was $1.4 million and $5.2 million for the years ended December 31, 2020 and 2019, respectively.

NOTE 5 – LOAN PAYABLE

On May 2, 2020, we received loan proceeds in the amount of approximately $1.8 million (the “PPP Loan”) under the Paycheck Protection Program (“PPP”). The PPP was
established under the Coronavirus Aid, Relief and Economic Security Act, as amended (“CARES Act”) and is administered by the U.S. Small Business Administration
(“SBA”).  Under  the  terms  of  the  CARES  Act,  PPP  loan  recipients  can  apply  for  loan  forgiveness.  The  potential  loan  forgiveness  for  all  or  a  portion  of  PPP  loans  is
determined,  subject  to  limitations,  based  on  the  use  of  loan  proceeds  over  the  24  weeks  after  the  loan  proceeds  are  disbursed.  The  amount  of  loan  forgiveness  will  be
reduced if PPP loan recipients terminate employees or reduce salaries during the covered period. The unforgiven portion of our PPP Loan, if any, is payable over two years
at an interest rate of 1%, with a deferral of principal and interest payments to either (i) the date that the SBA remits the borrower’s loan forgiveness amount to the lender or
(ii) if the borrower does not apply for forgiveness, 10 months after the end of the borrower’s loan forgiveness covered period. We believe that we have used the proceeds
from our PPP Loan for purposes consistent with the PPP. While we currently believe that our use of the loan proceeds will meet the conditions for forgiveness of our PPP
Loan, there can be no assurance that forgiveness for any portion of the PPP Loan will be obtained.

NOTE 6 - FAIR VALUE MEASUREMENTS

We calculate the fair value of our assets and liabilities that qualify as financial instruments and include additional information in the notes to the consolidated financial
statements when the fair value is different than the carrying value of these financial instruments. The estimated fair value of prepaid expenses and other current assets,
other assets, accounts payable, accrued expenses, loan payable, payable to licensor and deferred revenue approximate their carrying amounts due to the relatively short
maturity of these instruments.

U.S. GAAP defines fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous
market for the asset or liability in an orderly transaction between market participants at the measurement date. This guidance establishes a three-level fair value hierarchy
that prioritizes the inputs used to measure fair value. The hierarchy requires entities to maximize the use of observable inputs and minimize the use of unobservable inputs.
The three levels of inputs used to measure fair value are as follows:

● Level 1 – Quoted prices in active markets for identical assets or liabilities.
● Level 2 – Observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets; quoted prices
for identical or similar assets and liabilities in markets that are not active; or other inputs that are observable or can be corroborated by observable market data.
● Level 3 – Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets and liabilities. This includes

certain pricing models, discounted cash flow methodologies and similar valuation techniques that use significant unobservable inputs.

The guidance requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value.

We have segregated all financial assets and liabilities that are measured at fair value on a recurring basis (at least annually) into the most appropriate level within the fair
value hierarchy based on the inputs used to determine the fair value at the measurement date in the table below.

Financial assets and liabilities measured at fair value on a recurring and non-recurring basis as of December 31, 2020 and 2019 are summarized below:

Description
Recurring
Assets:
Short-term investments

Non-recurring
Assets:
Licensed technology, net
Goodwill

Description
Recurring
Assets:
Short-term investments

Non-recurring
Assets:
Licensed technology, net
Goodwill

  $

  $

  $

  $

December 31, 2020

Level 1

Level 2

Level 3

    Total Gains/(Losses)

82,438,000    $

-    $

82,438,000    $

-    $

- 

1,500,000    $
32,466,000     

-    $
-     

-    $
-     

1,500,000    $
32,466,000     

(32,916,000)
- 

December 31, 2019

Level 1

Level 2

Level 3

    Total Gains/(Losses)

-    $

36,178,000    $
32,466,000     

-    $

-    $
-     

-    $

-    $
-     

-    $

- 

36,178,000    $
32,466,000     

(367,000)
- 

 
 
 
 
 
   
 
 
 
 
 
 
 
 
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
 
 
 
      
      
      
      
  
 
 
      
      
      
      
  
 
 
 
      
      
      
      
  
 
 
      
      
      
      
  
 
 
      
      
      
      
  
 
 
 
 
   
   
   
 
 
 
      
      
      
      
  
 
 
      
      
      
      
  
 
 
 
      
      
      
      
  
 
 
      
      
      
      
  
 
 
      
      
      
      
  
 
 
 
F-13

 
 
NOTE 7 – STOCKHOLDERS’ EQUITY

2019 Public Offering of Common Stock and “Pre-Funded” Warrants

On December 24, 2019, we closed an underwritten public offering of 32,382,945 shares of common stock at a public offering price of $2.50 per share. In addition, as part
of the offering, we sold “pre-funded” warrants to purchase up to an aggregate of 9,017,055 shares of common stock at a purchase price of $2.4999 per pre-funded warrant,
which  equals  the  public  offering  price  per  share  of  the  common  stock  less  the  $0.0001  per  share  exercise  price  of  each  pre-funded  warrant.  The  gross  proceeds  to  the
Company were approximately $103.5 million, before deducting the underwriting discounts and commissions and estimated offering expenses payable by the Company.

In October 2020, all of the 9,017,055 “pre-funded” warrants were exercised and converted into 9,017,055 shares of common stock. We received a negligible amount of
cash from the exercise of these pre-funded warrants during 2020.

“Non-Pre-Funded” Warrants

“Non-pre-funded” warrants to purchase a total of 70,000 shares of common stock were outstanding as of December 31, 2019. These “non-pre-funded” warrants expired
unexercised during 2020. We did not receive cash from the exercise of “non-pre-funded” warrants during 2020 or 2019.

NOTE 8 – REVENUE FROM CONTRACTS WITH CUSTOMERS

Sublicense and Inventory Purchase Agreements Relating to CLN1 Disease: In August 2020, we entered into sublicense and inventory purchase agreements with Taysha
Gene  Therapies  (“Taysha”)  relating  to  a  potential  gene  therapy  for  CLN1  disease.  Under  the  sublicense  agreement,  Taysha  received  worldwide  exclusive  rights  to
intellectual property and know-how relating to the research, development, and manufacture of the potential gene therapy, which we had referred to as ABO-202. Under the
inventory purchase agreement, we sold to Taysha certain inventory and other items related to ABO-202. We assessed these contracts at contract inception and determined
that, under ASC 606, the two contracts would be combined and accounted for as a single contract, with a single performance obligation. We assessed the nature of the
promised  license  to  determine  whether  the  license  has  significant  stand-alone  functionality  and  evaluated  whether  such  functionality  can  be  retained  without  ongoing
activities by us and determined that the license has significant stand-alone functionality. Furthermore, we have no ongoing activities associated with the license to support
or maintain the license’s utility. Based on this, we determined that the pattern of transfer of control of the license to Taysha was at a point in time.

The transaction price of the contract includes (i) $7.0 million of fixed consideration, (ii) up to $26.0 million of variable consideration in the form of event-based milestone
payments, (iii) up to $30.0 million of variable consideration in the form of sales-based milestone payments, and (iv) other royalty-based payments based on net sales. The
event-based milestone payments are based on certain development and regulatory events occurring. We evaluated whether the milestone conditions have been achieved and
if it is probable that a significant revenue reversal would not occur before recognizing the associated revenue. We determined that these milestone payments are not within
our control or the licensee’s control, such as regulatory approvals, and are not considered probable of being achieved until those approvals are received. Accordingly, we
have fully constrained the $26.0 million of event-based milestone payments until such time that it is probable that significant revenue reversal would not occur. The sales-
based milestone payments and other royalty-based payments are based on a level of sales for which the license is deemed to be the predominant item to which the royalties
relate. We will recognize revenue for these payments 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. We received the $7.0 million of fixed consideration during the year ended December 31, 2020. To date,
we have not recognized any sales-based or royalty revenue resulting from this licensing arrangement.

Under this arrangement, we recognized $7.0 million of revenue during the year ended December 31, 2020, which amount related solely to fixed consideration. We do not
have any contract assets or contract liabilities as a result of this transaction.

F-14

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Sublicense Agreement Relating to Rett Syndrome: In October 2020, we entered into a sublicense agreement with Taysha for a gene therapy for Rett syndrome and MECP2
gene  constructs  and  regulation  of  their  expression.  The  agreement  grants  Taysha  worldwide  exclusive  rights  to  intellectual  property  developed  by  scientists  at  the
University of North Carolina at Chapel Hill, the University of Edinburgh and us, and our know-how relating to the research, development, and manufacture of the gene
therapy for Rett syndrome and MECP2 gene constructs and regulation of their expression.

We assessed the nature of the promised license to determine whether the license has significant stand-alone functionality and evaluated whether such functionality can be
retained without ongoing activities by us and determined that the license has significant stand-alone functionality. Furthermore, we have no ongoing activities associated
with the license to support or maintain the license’s utility. Based on this, we determined that the pattern of transfer of control of the license to Taysha was at a point in
time.

The transaction price of the contract includes (i) $3.0 million of fixed consideration, (ii) up to $26.5 million of variable consideration in the form of event-based milestone
payments, (iii) up to $30.0 million of variable consideration in the form of sales-based milestone payments, and (iv) other royalty-based payments based on net sales. The
event-based milestone payments are based on certain development and regulatory events occurring. We evaluated whether the milestone conditions have been achieved and
if it is probable that a significant revenue reversal would not occur before recognizing the associated revenue. We determined that these milestone payments are not within
our control or the licensee’s control, such as regulatory approvals, and are not considered probable of being achieved until those approvals are received. Accordingly, we
have fully constrained the $26.5 million of event-based milestone payments until such time that it is probable that significant revenue reversal would not occur. The sales-
based milestone payments and other royalty-based payments are based on a level of sales for which the license is deemed to be the predominant item to which the royalties
relate. We will recognize revenue for these payments 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. We received the $3.0 million of fixed consideration during the year ended December 31, 2020. To date,
we have not recognized any sales-based or royalty revenue resulting from this licensing arrangement.

Under this arrangement, we recognized $3.0 million of revenue during the year ended December 31, 2020, which amount related solely to fixed consideration. We do not
have any contract assets or contract liabilities as a result of this transaction.

NOTE 9 – STOCK-BASED COMPENSATION

We have two stock-based compensation plans as follows: (1) Abeona Therapeutics Inc. 2015 Equity Incentive Plan, which was approved by stockholders on May 7, 2015
and last amended on May 20, 2020 and (2) Abeona Therapeutics Inc. 2005 Equity Incentive Plan, which no further grants can be made under this plan.

Stock  Option  Repricing  Program:  On  November  10,  2020,  the  Compensation  Committee  of  the  Company’s  Board  of  Directors  (the  “Compensation  Committee”)
unanimously  approved  the  repricing  of  all  stock  options  outstanding  under  the  Abeona  Therapeutics  Inc.  2015  Equity  Incentive  Plan  held  by  current  employees  of  the
Company that had an exercise price per share between $1.16 and $17.30 (the “Eligible Stock Options”). As a result of the repricing, the exercise price of the Eligible Stock
Options was set to $1.15 per share, equal to the closing sale price of the Company’s common stock on November 10, 2020. Stock options held by members of the Board
were not included in the repricing. Except for the modified exercise price, all other terms and conditions of each of the Eligible Stock Options remain in full force and
effect.  The  fair  value  of  the  Eligible  Stock  Options  was  determined  using  the  Hull  White  I  lattice  model.  There  were  79  grantees  of  Eligible  Stock  Options  and  the
incremental compensation cost resulting from the modification was $0.6 million, of which $0.3 million was recognized as compensation expense during the year ended
December 31, 2020. The expected weighted average period over which the remaining $0.3 million of incremental compensation costs will be recognized is 2.6 years.

F-15

 
 
 
 
 
 
 
 
 
 
 
On  November  17,  2020,  the  Compensation  Committee  unanimously  approved  the  repricing  of  all  stock  options  outstanding  under  the  Abeona  Therapeutics  Inc.  2015
Equity Incentive Plan and the Abeona Therapeutics Inc. 2005 Equity Incentive Plan held by the four current members of the Board that had an exercise price per share
between $1.29 and $18.50 (the “Eligible Director Stock Options”). As a result of the repricing, the exercise price of the Eligible Director Stock Options was set to $1.28
per share, equal to the closing sale price of the Company’s common stock on November 17, 2020. Except for the modified exercise price, all other terms and conditions of
each of the Eligible Stock Options remain in full force and effect. The fair value of the Eligible Director Stock Options was determined using the Hull White I lattice
model. There were four grantees of Eligible Director Stock Options and the incremental compensation cost resulting from the modification was $0.5 million, of which $0.4
million was recognized as compensation expense during the year ended December 31, 2020. The expected weighted average period over which the remaining $0.1 million
of incremental compensation costs will be recognized is 2.4 years.

2015 Equity Incentive Plan

Under  our  2015  Equity  Incentive  Plan,  as  amended,  up  to  18,000,000  shares  of  our  authorized  but  unissued  common  stock  are  reserved  for  issuance  to  employees,
consultants, or to non-employee members of the Board or to any member of the board of directors (or similar governing authority) of any affiliate of the Company. The
maximum contractual term of awards is 10 years.

Stock Options: We estimate the fair value of each option award on the date of grant using the Black-Scholes option valuation model. We then recognize the grant date fair
value of each option as compensation expense ratably using the straight-line attribution method over the service period (generally the vesting period). The Black-Scholes
model incorporates the following assumptions:

● Expected volatility – we estimate the volatility of our share price at the date of grant using a “look-back” period which coincides with the expected term, defined

below. We believe using a “look-back” period which coincides with the expected term is the most appropriate measure for determining expected volatility.
● Expected term – we estimate the expected term using the “simplified” method, as outlined in Staff Accounting Bulletin No. 107, “Share-Based Payment.”
● Risk-free interest rate – we estimate the risk-free interest rate using the U.S. Treasury yield curve for periods equal to the expected term of the options in effect at

the time of grant.

● Dividends – we use an expected dividend yield of zero because we have not declared or paid a cash dividend, nor do we have any plans to declare a dividend.

We used the following weighted-average assumptions to estimate the grant date fair value of the stock options granted for the years indicated:

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

For the years ended December 31,
2019
2020

110% 

6.2 years 

0.30% 
0.00% 

108%

5.1 years 

2.21%
0.00%

We account for forfeitures as they occur, which may result in the reversal of compensation costs in subsequent periods as the forfeitures arise.

F-16

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Summarized stock option information for the 2015 Equity Incentive Plan is as follows:

Outstanding options at January 1, 2019

Granted, fair value of $5.14 per share
Exercised
Expired/forfeited
Outstanding options at December 31, 2019
Granted, fair value of $1.88 per share
Exercised
Expired/forfeited
Outstanding options at December 31, 2020

Non-vested options at December 31, 2019
Non-vested options at December 31, 2020

Options

5,525,405    $

1,490,490    $
(303,129)  
(917,371)  
5,795,395    $
2,645,146    $
(77,560)  
(2,802,242)  
5,560,739    $

2,342,706    $
2,507,203    $

Weighted-
average
exercise
 price

8.08 

6.53 
3.20 
7.95 
7.96 
2.26 
2.28 
6.52 
2.21 

8.78 
1.29 

The weighted-average exercise price of stock options granted during the year ended December 31, 2020 was $1.42 after adjusting for the stock option repricing program
noted above.

The intrinsic value related to the outstanding options under this plan was $1.7 million and $0.7 million, as of December 31, 2020 and 2019, respectively. The intrinsic value
related to the exercisable options under this plan was $0.7 million and $0.6 million as of December 31, 2020 and 2019, respectively.

The total intrinsic value of the options exercised was $0 and $0.4 million during the years ended December 31, 2020 and 2019, respectively.

Further information regarding options outstanding under the 2015 Equity Incentive Plan as of December 31, 2020 is summarized below:

Weighted-average

Weighted-average

$

Range of exercise prices

$

1.02 
2.31 
4.38 
6.59 
8.54 
14.45 

1.28   
2.59   
4.78   
7.42   
13.65   
16.02   

Number of
options

outstanding    
4,562,630   
161,642   
357,925   
298,865   
66,567   
113,110   
5,560,739   

Remaining life
in years

7.8   
1.4   
3.2   
2.6   
6.5   
1.1   

Exercise price    
1.20   
$
2.31   
4.43   
7.33   
13.26   
15.96   

Number of
options
exercisable

2,077,915   
161,642   
357,925   
298,865   
47,817   
109,372   
3,053,536   

$

Remaining
life in years     Exercise price 
1.23 
2.31 
4.43 
7.33 
13.10 
15.96 

6.3   
1.4   
3.2   
2.6   
6.3   
1.0   

As of December 31, 2020, the total compensation cost related to non-vested options not recognized is $7.8 million. The expected weighted average period over which the
total compensation costs related to non-vested options will be recognized is 2.3 years.

F-17

 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
   
 
   
 
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
    
 
 
    
 
    
 
 
    
 
  
 
 
 
 
Restricted Common Stock: Summarized stock option information for the 2015 Equity Incentive Plan is as follows:

Outstanding awards at January 1, 2019

Granted
Vested
Forfeited
Outstanding awards at December 31, 2019
Granted
Vested
Forfeited
Outstanding awards at December 31, 2020

Restricted
common 
stock 
awards

Weighted-
average
grant date
fair value

-    $

376,625    $

-   
(22,000)  
354,625    $
5,290,312    $
(817,054)  
(1,875,384)  
2,952,499    $

- 

3.14 
- 
3.14 
3.14 
1.75 
2.26 
1.75 
1.78 

The fair market value of the restricted common stock awards vested was $1.3 million and $0 during the years ended December 31, 2020 and 2019, respectively.

As of December 31, 2020, the total compensation cost related to restricted common stock not recognized is $4.1 million. The expected weighted average period over which
the total compensation costs related to restricted common stock will be recognized is 1.8 years.

2005 Equity Incentive Plan

Under the 2005 Equity Incentive Plan, as amended, shares of our authorized but unissued common stock were reserved for issuance to employees, consultants, or to non-
employee members of the Board or to any member of the board of directors (or similar governing authority) of any affiliate of the Company. As of January 20, 2015, no
additional  shares  were  available  for  grant  under  the  2005  Equity  Incentive  Plan.  A  total  of  124,800  options  were  outstanding  and  exercisable  under  this  plan  as  of
December 31, 2020.

Summarized information for the 2005 Equity Incentive Plan is as follows:

Outstanding options at January 1, 2019

Expired/forfeited
Outstanding options at December 31, 2019
Expired/forfeited
Outstanding options at December 31, 2020

Options

316,400    $

(56,400)  
260,000    $
(135,200)  
124,800    $

Weighted-
average
exercise
price

14.15 

19.75 
12.94 
6.80 
8.55 

The intrinsic value related to the outstanding or exercisable options under this plan was $0 as of December 31, 2020 and 2019.

F-18

 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Further information regarding options outstanding under the 2005 Equity Incentive Plan as of December 31, 2020 is summarized below:

Weighted-average

Weighted-average

$

Range of exercise prices

$

1.28 
11.50 
30.50 

1.28   
18.50   
113.50   

NOTE 10 – 401(k) PLAN

Number of
options

outstanding    
80,000   
42,000   
2,800   
124,800   

Remaining life
in years

3.2   
2.4   
0.6   

Exercise price    
1.28   
$
18.17   
72.00   

Number of
options
exercisable

80,000   
42,000   
2,800   
124,800   

Remaining
life in years     Exercise price 
1.28 
18.17 
72.00 

3.2   
2.4   
0.6   

$

We have a tax-qualified employee savings and retirement plan (the “401(k) Plan”) covering all our employees in the United States. Pursuant to the 401(k) Plan, employees
may elect to reduce their current compensation by up to the statutorily prescribed annual limit ($19,500 in 2020 and $19,000 in 2019) and to have the amount of such
reduction contributed to the 401(k) Plan. The 401(k) Plan is intended to qualify under Section 401 of the Internal Revenue Code so that contributions by employees or by
us to the 401(k) Plan, and income earned on 401(k) Plan contributions, are not taxable to employees until withdrawn from the 401(k) Plan, and so that contributions by us,
if any, will be deductible by us when made. At the direction of each participant, we invest the assets of the 401(k) Plan in any of over 50 investment options. Company
contributions under the 401(k) Plan were $0.3 million and $0.4 million for the years ended December 31, 2020 and 2019, respectively.

NOTE 11 - INCOME TAXES

Income tax expense differs from the statutory amounts for each of the following years:

Income taxes at U.S. statutory rate
Current year reserve
Expenses not deductible
Total tax expense

For the years ended December 31,

2020

2019

  $

  $

(17,689,000)   $
12,020,000   
5,669,000   

-    $

(16,020,000)
15,976,000 
44,000 
- 

Deferred taxes are provided for the temporary differences between the financial reporting bases and the tax bases of our assets and liabilities. The temporary differences
that give rise to deferred tax assets and liabilities were as follows:

Deferred tax assets (liabilities):
Net operating loss carryforwards
General business credit carryforwards
State credits
Property, equipment and goodwill
Stock options
Deferred revenue
Intangible assets
Other
Gross deferred tax assets
Valuation allowance
Net deferred taxes

December 31, 2020

December 31, 2019

61,062,000    $
4,398,000   
2,857,000   
8,000   
9,551,000   
62,000   
312,000   
70,000   
78,320,000   
(78,320,000)  

-    $

50,802,000 
3,939,000 
2,934,000 
(28,000)
7,960,000 
62,000 
1,625,000 
28,000 
67,322,000 
(67,322,000)
- 

$

$

F-19

 
 
 
 
 
 
 
   
 
   
   
 
   
 
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
    
 
 
    
 
    
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
As  of  December  31,  2020,  we  had  approximately  $290.8  million  of  net  operating  loss  carryforwards  and  approximately  $4.4  million  of  general  business  credit
carryforwards. These carryforwards expire as follows:

2021
2022
2023
2024
2025
Thereafter

Net operating 
loss carryforwards

General business
credit
carryforwards

  $

  $

5,378,000    $
8,230,000   
5,434,000   
8,711,000   
2,370,000   
97,576,000   
127,699,000    $

56,000 
431,000 
362,000 
287,000 
182,000 
3,080,000 
4,398,000 

As of December 31, 2020, we had approximately $163.1 million of net operating loss carryforwards that do not expire and can be carried forward indefinitely.

We acquired MacroChem Corporation on February 25, 2009 and Somanta Pharmaceuticals, Inc. on January 4, 2008. Both of these corporations were loss-making entities
at the time of acquisition. As a result, the net operating losses related to those acquisitions may be subject to annual limitations as well.

NOTE 12 – COMMITMENTS AND CONTINGENCIES

Arbitration Proceeding

We are currently engaged in an arbitration proceeding with REGENXBIO regarding the former license agreement between the parties relating to use of the AAV9 capsid in
our MPS IIIA, MPS IIIB, CLN1 (which has now been sold to Taysha Gene Therapies, as discussed in Note 8 above), and CLN3 programs. The license terminated on May
2,  2020,  and  on  May  25,  2020,  we  filed  an  arbitration  claim  with  the American  Arbitration  Association  (“AAA”)  alleging  that  REGENXBIO  materially  breached  the
license  agreement  prior  to  termination  and  seeking,  among  other  things,  a  declaration  that  as  a  result  of  REGENXBIO’s  material  breach,  we  are  not  responsible  for
payments totaling $28 million (which would otherwise have been due in 2020) plus accrued interest ($3.5 million as of December 31, 2020). REGENXBIO disputes our
arbitration claim and has filed a counterclaim seeking payment of these amounts. An arbitration hearing before a tribunal of three AAA arbitrators was held on March 8
and March 9, 2021. The tribunal has not yet issued its opinion, and based on the post-hearing schedule an opinion is expected in late second quarter 2021 or early third
quarter 2021.

Operating Leases

We lease space under operating leases for manufacturing and laboratory facilities and administrative offices in Cleveland, Ohio, as well as administrative offices in New
York, New York. We also lease office space in Madrid, Spain as well as certain office equipment under operating leases, which have a non-cancelable lease term of less
than one year and, therefore, we have elected the practical expedient to exclude these short-term leases from our right-of-use assets and lease liabilities.

Components of lease cost under ASC 842 for the years ended December 31, 2020 and 2019 are as follows:

Operating lease cost
Variable lease cost
Short-term lease cost

For the years ended December 31,

2020

2019

1,736,000    $
337,000    $
61,000    $

1,591,000 
322,000 
133,000 

  $
  $
  $

F-20

 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
The following table presents information about the amount and timing of cash flows arising from operating leases under ASC 842 as of December 31, 2020:

Maturity of lease liabilities:
2021
2022
2023
2024
2025
Thereafter
Total undiscounted operating lease payments
Less: imputed interest
Present value of operating lease liabilities

Balance sheet classification:
Current portion of lease liability
Long-term lease liability
Total operating lease liabilities

Other information:
Weighted-average remaining lease term for operating leases
Weighted-average discount rate for operating leases

F-21

  $

  $

  $

  $

1,713,000 
1,727,000 
1,741,000 
1,781,000 
1,799,000 
87,000 
8,848,000 
1,875,000 
6,973,000 

1,713,000 
5,260,000 
6,973,000 

61 months 

9.6%

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
 
 
Subsidiaries of the Registrant

EXHIBIT 21

Abeona Therapeutics LLC, an Ohio company

Abeona Therapeutics Europe, S.L., a Spanish company

MacroChem Corporation, a Delaware company

Virium Pharmaceuticals, Inc., a Delaware company

 
 
 
 
 
 
 
 
 
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the Registration Statements No. 333-197220 on Form S-1, Nos. 333-204179, 333-205128 and 333-224867 on Form S-3, and
Nos. 333-125796, 333-161642, 333-169067, 333-189985, 333-204055, 333-214846, 333-221552 and 333-238571 on Form S-8 Abeona Therapeutics Inc. and Subsidiaries, of
our report dated March 24, 2021, relating to the consolidated financial statements appearing in this Annual Report on Form 10-K of Abeona Therapeutics Inc. and Subsidiaries
for the year ended December 31, 2020.

EXHIBIT 23.1

/s/ WHITLEY PENN LLP

Plano, Texas
March 24, 2021

 
 
 
 
 
 
 
 
PRINCIPAL EXECUTIVE OFFICER CERTIFICATION PURSUANT TO 18 U.S.C.
SECTION 1350, AS ADOPTED PURSUANT TO SECTION 302
OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31.1

I, Michael Amoroso, certify that:

1.

I have reviewed this Annual Report on Form 10-K of Abeona Therapeutics Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light

of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on  my  knowledge,  the  financial  statements  and  other  financial  information  included  in  this  report,  fairly  present  in  all  material  respects  the  financial  condition,

results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-

15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material
information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in
which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide
reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally
accepted accounting principles;

c)

Evaluated  the  effectiveness  of  the  registrant’s  disclosure  controls  and  procedures  and  presented  in  this  report  our  conclusions  about  the  effectiveness  of  the
disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the
registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal
control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and

the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely

affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial

reporting.

Dated: March 24, 2021

/s/ Michael Amoroso
Michael Amoroso
President and Chief Executive Officer
(Principal Executive Officer)

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
PRINCIPAL FINANCIAL OFFICER CERTIFICATION PURSUANT TO 18 U.S.C.
SECTION 1350, AS ADOPTED PURSUANT TO SECTION 302
OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 31.2

I, Edward Carr, certify that:

1.

I have reviewed this Annual Report on Form 10-K of Abeona Therapeutics Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light

of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on  my  knowledge,  the  financial  statements  and  other  financial  information  included  in  this  report,  fairly  present  in  all  material  respects  the  financial  condition,

results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-

15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material
information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in
which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide
reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally
accepted accounting principles;

c)

Evaluated  the  effectiveness  of  the  registrant’s  disclosure  controls  and  procedures  and  presented  in  this  report  our  conclusions  about  the  effectiveness  of  the
disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the
registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal
control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and

the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely

affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial

reporting.

Dated:  March 24, 2021

/s/ Edward Carr
Edward Carr
Chief Accounting Officer
(Principal Financial Officer)

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
CERTIFICATION PURSUANT TO 18 U.S.C.
SECTION 1350 AS ADOPTED PURSUANT TO SECTION 906
OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 32

In connection with the Annual Report of Abeona Therapeutics Inc. (the “Company”) on Form 10-K for the year ended December 31, 2020 as filed with the Securities and
Exchange Commission on the date hereof (the “Report”), we, Michael Amoroso, President and Chief Executive Officer of the Company, and Edward Carr, Chief Accounting
Officer of the Company, each certify, pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: March 24, 2021

Date: March 24, 2021

By:  /s/ Michael Amoroso

Michael Amoroso
President and Chief Executive Officer
(Principal Executive Officer)

By:

/s/ Edward Carr
Edward Carr
Chief Accounting Officer
(Principal Financial Officer)