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Iovance Biotherapeutics, Inc.

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FY2023 Annual Report · Iovance Biotherapeutics, Inc.
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

Form 10-K

(Mark One)

☒

☐

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

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

For the fiscal year ended December 31, 2023

For the transaction period from __________ to __________

Commission file number: 001-36860

IOVANCE BIOTHERAPEUTICS, INC.
(Exact Name of Registrant as Specified in Its Charter)

Delaware
(State or Other Jurisdiction of
Incorporation or Organization)

825 Industrial Road, Suite 400, San Carlos, California
(Address of Principal Executive Offices)

75-3254381
(I.R.S.  Employer
Identification No.)

94070
(Zip Code)

(650) 260-7120
(Registrant’s Telephone Number, Including Area Code)

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

Title of Each Class
Common Stock, $ 0.000041666 Par Value per Share

Trading Symbol(s)
IOVA

Name Of Each Exchange
On Which Registered
The Nasdaq Global Market

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

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

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

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

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

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

Large accelerated filer   ☑
Non-accelerated filer     ☐

     Accelerated filer ☐

Smaller reporting company ☐
Emerging growth company ☐

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

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

If the securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to
previously issued financial statements. ☐

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive
officers during the relevant recovery period pursuant to §240.10D-1(b). ☐

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

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

Title of each class
Common stock, par value $0.000041666 per value

    Trading Symbol(s)

IOVA

    Name of each exchange on which registered
  The Nasdaq Stock Market, LLC

The aggregate market value of the registrant’s common stock held by non-affiliates on June 30, 2023, the last business day of the registrant’s most recently completed second fiscal quarter, was
approximately $1.4 billion. Shares of common stock held by directors and executive officers and any ten percent or greater stockholders and their respective affiliates have been excluded from this
calculation, because such stockholders may be deemed to be "affiliates" of the Registrant. This is not necessarily determinative of affiliate status of other purposes. As of February 22, 2024, there
were 279,307,043 shares of the registrant’s common stock outstanding.

Portions of registrant’s proxy statement relating to registrant’s 2024 Annual Meeting of Stockholders (the “Proxy Statement”) to be filed with the Securities and Exchange Commission
pursuant to Regulation 14A, not later than 120 days after the close of the registrant’s fiscal year, are incorporated by reference in Part III of this Annual Report on Form 10-K. Except with respect
to information specifically incorporated by reference in this Annual Report on Form 10-K, the Proxy Statement is not deemed to be filed as part of this Annual Report on Form 10-K.

Documents Incorporated By Reference

 
    
    
 
 
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Table of Contents

PART I

Item 1. Business

Item 1A. Risk Factors

Item 1B. Unresolved Staff Comments

Item 1C. Cybersecurity

Item 2. Properties

Item 3. Legal Proceedings

Item 4. Mine Safety Disclosures

PART II 

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

Item 6.

[Reserved]

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

Item 7A. Quantitative and Qualitative Disclosures About Market Risk

Item 8. Financial Statements and Supplementary Data

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

Item 9A. Controls and Procedures

Item 9B. Other Information

PART III 

Item 10. Directors, Executive Officers and Corporate Governance

Item 11. Executive Compensation

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

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

Item 14. Principal Accounting Fees and Services

PART IV 

Item 15. Exhibits, Financial Statements Schedules

Item 16. 10-K Summary

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Forward-Looking Statements and Market Data

This Annual Report on Form 10-K contains forward-looking statements that are based on management’s beliefs and assumptions
and on information currently available to management. All statements other than statements of historical facts contained in this report are
forward-looking statements. In some cases, you can identify forward-looking statements by the following words: “may,” “will,” “might,”
“could,”  “would,”  “should,”  “expect,”  “intend,”  “plan,”  “anticipate,”  “believe,”  “estimate,”  “predict,”  “project,”  “aim,”  “potential,”
“continue,” “ongoing,” “goal,” “forecast,” “guidance,” “outlook,” or the negative of these terms or other similar expressions, although
not all forward-looking statements contain these words.

These  statements  involve  risks,  uncertainties  and  other  factors  that  may  cause  actual  results,  levels  of  activity,  performance,  or
achievements  to  be  materially  different  from  the  information  expressed  or  implied  by  these  forward-looking  statements.  Although  we
believe that we have a reasonable basis for each forward-looking statement contained in this report, we caution you that these statements
are  based  on  a  combination  of  facts  and  factors  currently  known  by  us  and  our  projections  of  the  future,  about  which  we  cannot  be
certain. Forward-looking statements in this Annual Report on Form 10-K include, but are not limited to, statements about:

● the success, cost, enrollment, and timing of our clinical trials;
● the success, cost, and timing of our product development activities;
● the ability of us or our third-party contract manufacturers to continue to manufacture tumor infiltrating lymphocytes, or TIL, in

accordance with our selected process;

● our ability to design, construct and staff our own manufacturing facility on a timely basis and within the estimated expenses;
● the success of competing therapies that are or may become available;
● regulatory developments in the United States of America, or U.S., and foreign countries;
● the  timing  of  and  our  ability  to  obtain  and  maintain  U.S.  Food  and  Drug  Administration,  or  the  FDA,  or  other  regulatory

authority approval of, or other action with respect to, our products and /or product candidates;

● our ability to attract and retain key scientific or management personnel;
● the accuracy of our estimates regarding expenses, future revenue, capital requirements and needs for additional financing;
● our ability to obtain funding for our operations, including funding necessary to complete further development of our product

candidates and commercialization of our products;

● our ability to successfully commercialize AmtagviTM (lifileucel) and any other products and/or product candidates for which we

obtain FDA or other regulatory approvals;

● the ability and willingness of our third-party research institution collaborators to continue research and development activities

relating to our product candidates;

● the potential of our other research and development and strategic collaborations;
● our expectations regarding our ability to obtain and maintain intellectual property protection for our manufacturing methods and

products and/or product candidates;

● our plans to research, develop and commercialize our products and/or product candidates;
● the size and growth potential of the markets for our products and/or product candidates, and our ability to serve those markets;
● our ability to contract with third-party suppliers and manufacturers and their ability to perform adequately;
● fluctuations in the trading price of our common stock; and
● our use of cash and other resources.

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Actual results may differ from those set forth in this Annual Report on Form 10-K due to the risks and uncertainties inherent in
our  business,  including,  without  limitation:  the  FDA  may  not  agree  with  our  interpretation  of  the  results  of  its  clinical  trials;  later
developments with the FDA that may be inconsistent with already completed FDA meetings; the preliminary clinical results, including
efficacy and safety results, from ongoing Phase 2 and Phase 3 clinical trials may not be reflected in the final analyses of these clinical
trials including new cohorts within these clinical trials; the results obtained in our ongoing clinical trials, such as the studies and clinical
trials referred to in this Annual Report on Form 10-K, may not be indicative of results obtained in future clinical trials or supportive of
product  approval;  regulatory  authorities  may  potentially  delay  the  timing  of  FDA  or  other  regulatory  authority  approval  of,  or  other
action with respect to, our product candidates, specifically, our description of FDA interactions are subject to FDA’s interpretation, as
well  as  FDA’s  authority  to  request  new  or  additional  information;  we  may  not  be  able  to  obtain  or  maintain  FDA  or  other  regulatory
authority approval of its product candidates; our ability to address FDA or other regulatory authority requirements relating to our clinical
programs  and  registrational  plans,  such  requirements  including,  but  not  limited  to,  clinical  and  safety  requirements  as  well  as
manufacturing  and  control  requirements;  risks  related  to  our  accelerated  FDA  review  designations;  our  ability  to  obtain  and  maintain
intellectual  property  rights  relating  to  our  product  pipeline;  and  the  acceptance  by  the  market  of  our  product  candidates  and  their
potential reimbursement by payors, if approved.

We  caution  you  that  the  risks,  uncertainties,  and  other  factors  referenced  above  may  not  contain  all  the  risks,  uncertainties  and
other factors that are important to you. In addition, we cannot guarantee future results, level of activity, performance, or achievements.
Any forward-looking statement made by us in this Annual Report on Form 10-K speaks only as of the date of this Annual Report on
Form 10-K or as of the date on which it is made. Except as required by law, we undertake no obligation to publicly update any forward-
looking statements, whether because of new information, future events or otherwise, after the date of this Annual Report on Form 10-K.

Unless the context requires otherwise, in this report the terms “Iovance,” the “Company,” “we,” “us” and “our” refer to Iovance

Biotherapeutics, Inc.

PART I

Item 1.          Business

Overview

We are a commercial-stage biopharmaceutical company pioneering a transformational approach to treating cancer by harnessing
the  human  immune  system’s  ability  to  recognize  and  destroy  diverse  cancer  cells  using  therapies  personalized  for  each  patient.  Our
mission  is  to  be  the  global  leader  in  innovating,  developing  and  delivering  tumor  infiltrating  lymphocyte,  or  TIL,  cell  therapies  for
patients  with  solid  tumor  cancers.  With  the  recent  approval  of  our  biologics  license  application,  or  BLA,  we  are  executing  the  U.S.
launch  of  Amtagvi™  (lifileucel),  the  first  product  within  our  autologous  TIL  cell  therapy  platform,  while  also  marketing  Proleukin®
(aldesleukin), an interleukin-2, or IL-2, product used in the Amtagvi™ treatment regimen. Amtagvi™ is a tumor-derived autologous T
cell immunotherapy indicated for the treatment of adult patients with unresectable or metastatic melanoma previously treated with a PD-
1  blocking  antibody,  and  if  BRAF  V600  mutation  positive,  a  BRAF  inhibitor  with  or  without  a  MEK  inhibitor.  This  indication  is
approved under accelerated approval based on an endpoint of overall response rate, or ORR. Continued approval for this indication may
be contingent upon verification and description of clinical benefit in future confirmatory trials. Amtagvi™ is the first and the only one-
time, individualized T cell therapy to receive FDA approval for a solid tumor cancer. Amtagvi™ and Proleukin® are part of a treatment
regimen that also includes lymphodepletion.

Iovance  was  founded  to  build  upon  the  promise  of  TIL  cell  therapy  that  was  previously  demonstrated  in  single-center  clinical
trials at academic centers, including the National Cancer Institute, or the NCI. Our multi-center trials, novel TIL products, manufacturing
processes, facilities, and bioanalytical platforms have transformed TIL cell therapy into a commercially viable treatment, which many
more patients with cancer can access.

We  manufacture  Amtagvi™  and  our  investigational  TIL  cell  therapies  using  a  centralized,  scalable,  and  proprietary  22-day
manufacturing  process  which  rejuvenates  and  multiplies  polyclonal  T  cells  unique  to  each  patient  into  the  billions  and  yields  a
cryopreserved, individualized therapy.

Our development pipeline includes multicenter trials of TIL cell therapies in additional treatment settings for solid tumor cancers.
We are investigating TIL monotherapies for patients with later stage disease who were previously treated with standard of care therapies
and TIL combinations with standard of care therapies to potentially improve outcomes in patients who are earlier in their disease. These
trials include two ongoing registrational trials to support a supplementary BLA, or sBLA, of our TIL cell therapies in frontline advanced

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melanoma and in advanced non-small cell lung cancer following standard of care chemo-immunotherapy. We are also developing next
generation therapies using TIL, such as genetically modified TIL cell therapy.

Corporate Strategy

Be the global leader in innovating, developing and delivering TIL cell therapy

Our  mission  is  to  be  the  global  leader  in  innovating,  developing  and  delivering  TIL  cell  therapy  for  patients  with  solid  tumor
cancers. We are pioneering this transformational approach to cure cancer by harnessing the human immune system’s ability to recognize
and destroy diverse cancer cells in each patient. Through the U.S. launch of Amtagvi™ and the advancement of our pipeline, we are
committed to continuous innovation in developing TIL cell therapy and optimizing TIL treatment regimens that may extend and improve
life for patients with cancer.

Successfully commercialize our lead product Amtagvi™ for the treatment of post-anti-PD-1 advanced melanoma

Our  top  priority  is  commercialization  of  AmtagviTM  in  the  U.S.  for  the  treatment  of  patients  with  post-anti-PD-1  advanced
melanoma, for which we received FDA approval on February 16, 2024. We have experienced marketing, payer access and distribution
teams  as  well  as  a  sales  force  with  extensive  experience  in  oncology  and  cell  therapy.  Our  medical  affairs  team  is  also  in  the  field
educating key opinion leaders, or KOLs, about Amtagvi™ and TIL cell therapy as well as presenting and publishing our clinical results.
More than half of the members of our field teams have prior cell therapy experience.

The four primary areas of our Amtagvi™ launch efforts include:

● onboarding of authorized treatment centers, or ATCs, for commercial launch, with the goal of activating 50 ATCs within 90

days of the BLA Prescription Drug User Fee Act, or PDUFA, date of February 24, 2024;
● collaboration with healthcare professionals, or HCPs, who will be administering our product;
● operational excellence in launch execution, commercial manufacturing and delivery of therapy; and
● ongoing and continuous communication with payors about the value of Amtagvi™.

Prepare for commercial manufacturing to meet forecasted demand

We are the first company to obtain FDA approval for a TIL cell therapy product. We believe that we are the only company in the
U.S.  to  have  a  centralized,  scalable  and  commercially  viable  TIL  manufacturing  process.  To  date,  more  than  700  patients  have  been
treated with Iovance TIL cell therapy products manufactured using our proprietary processes across multiple indications. Iovance TIL
cell therapies are manufactured for commercial use and clinical trials at our manufacturing facility, the Iovance Cell Therapy Center, or
the iCTC, and by a contract manufacturing organization, or CMO.

We  are  building  capacity  to  treat  several  thousands  of  cancer  patients  annually  at  the  iCTC,  which  is  the  first  centralized  and
scalable  current  Good  Manufacturing  Practice,  or  cGMP,  manufacturing  facility  dedicated  to  producing  TIL.  Located  in  Philadelphia,
Pennsylvania,  the  136,000  square  feet  iCTC  is  also  among  the  largest  cell  therapy  manufacturing  facilities  in  existence.  Additional
expansion  at  the  iCTC  is  under  way  which  will  significantly  increase  this  capacity.  The  proximity  of  the  iCTC  to  multiple  airports
facilitates delivery of TIL cell therapies to treatment centers, with the iCTC expected to cover logistics and delivery of TIL cell therapies
in both North America and Europe. Owning our own facility allows us to control manufacturing capacity and product quality, manage
logistics around supply and delivery, implement process improvement and realize potential cost efficiencies for TIL cell therapies that we
may develop and commercialize. We are also exploring future TIL manufacturing processes, as well as next-generation treatments and
technologies,  which  may  further  streamline  development  timelines  and  costs.  The  iCTC  has  a  flexible  design  that  allows  future
expansion within existing shell space and an option to build on an adjacent lot to support future growth and capacity needs.  

In  2018,  we  began  using  our  Gen  2  TIL  manufacturing  process,  which  reduced  TIL  manufacturing  time  to  22  days  while
producing a cryopreserved TIL product. The Gen 2 process was used to manufacture AmtagviTM  for the clinical trial that supported FDA
approval, and most of our ongoing clinical trials use the Gen 2 process.

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AmtagviTM is approved for commercial manufacturing at the iCTC. In addition, our CMO is approved for additional capacity to
supplement our internal manufacturing. We plan to carefully manage our cost structure and reduce the long-term cost of manufacturing
our products. Details of related agreements are provided in the Research, Development, Manufacturing and License Agreements for TIL
Cell Therapy section of this Annual Report on Form 10-K.

U.S. Commercial Launch of the First TIL Cell Therapy in Advanced Melanoma

Amtagvi™  

Amtagvi™ (lifileucel) was approved by the FDA on February 16, 2024 for the treatment of adult patients with unresectable or
metastatic melanoma previously treated with a PD-1 blocking antibody, and if BRAF V600 mutation positive, a BRAF inhibitor with or
without MEK inhibitor. The approval is based on safety and efficacy results from the C-144-01 clinical trial, a global, multicenter trial
investigating  Amtagvi™  in  patients  with  advanced  melanoma  previously  treated  with  anti-PD-1  therapy  and  targeted  therapy,  where
applicable. Amtagvi™ demonstrated deep and durable responses. The primary efficacy analysis set included 73 patients from Cohort 4
who received the recommended Amtagvi™ dose from an approved manufacturing facility. Among the 73 patients, 31.5% achieved an
objective response by Response Evaluation Criteria in Solid Tumors, or RECIST 1.1, with a median duration of response not reached at
18.6  months  follow-up;  43.5%  of  responses  had  a  duration  greater  than  12  months.  Additionally,  the  supporting  pooled  efficacy  set
included a total of 153 patients from Cohort 4 and Cohort 2. Among the 153 patients, 31.4% achieved an objective response by RECIST
1.1 with a median duration of response not reached at 21.5 months follow-up; 54.2% of responses had a duration greater than 12 months.
We completed the BLA submission in March 2023, which the FDA accepted in May 2023 for Priority Review. Based on the unmet need
in  post-anti-PD-1  advanced  melanoma,  as  well  as  initial  clinical  data,  Amtagvi™  previously  received  a  Regenerative  Medicine
Advanced Therapy, or RMAT, designation from the FDA in 2018.

Amtagvi™  has  a  boxed  warning  for  treatment-related  mortality,  prolonged  severe  cytopenia,  severe  infection,  and
cardiopulmonary  and  renal  impairment.  Warnings  and  precautions  include  treatment-related  mortality,  prolonged  severe  cytopenia,
internal organ hemorrhage, severe infection, cardiac disorder, respiratory failure, acute renal failure, and hypersensitivity reactions.  

Amtagvi™ is manufactured using a proprietary process to collect and multiply a patient’s unique T cells from a portion of their
tumor. Amtagvi™ returns billions of the patient’s T cells back to the body to fight cancer. ATCs will administer Amtagvi™ to patients as
part of a treatment regimen that includes lymphodepletion and a short course of high-dose Proleukin® (aldesleukin).

There are three key steps in the Amtagvi™ treatment process.

● Step 1: Sample Collection. At an ATC, a tumor tissue sample of at least 1.5 cm in diameter is removed and collected during

a surgical resection and shipped to an approved, centralized manufacturing facility.

● Step 2: Manufacturing. Patient-specific  TIL  are  manufactured  using  our  commercial  Gen  2  manufacturing  process.  Upon
arrival at the facility, TIL are separated from other cells within the patient’s tumor tissue sample. Over the next 22 days, the
cells  are  multiplied  into  the  billions,  so  they  can  be  returned  to  the  patient  to  fight  cancer  cells.  Upon  completion  of
manufacturing, Amtagvi™ is quality tested to meet specific product release criteria. The final product is cryopreserved and
sent back to the ATC for administration to the patient. Additional details on the Gen 2 manufacturing process are provided in
the Manufacturing Process section of our Annual Report on Form 10-K.

● Step 3: Treatment Regimen. The patient’s cell therapy treatment begins with a preparative regimen of non-myeloablative
lymphodepletion, or NMA-LD, to suppress the immunosuppressive tumor microenvironment, which we believe will enhance
the efficacy of TIL cell therapy. After NMA-LD, the patient is treated at the ATC with Amtagvi™, followed by a short course
of up to six doses of Proleukin® to promote T cell activity in the body after TIL infusion.

Until now, there were no FDA approved therapies in this treatment setting for advanced melanoma after anti-PD-1 therapy.

Proleukin®

In  May  2023,  we  acquired  the  worldwide  rights  to  Proleukin®(aldesleukin)  as  well  as  the  manufacturing,  supply,  and
commercialization income generated from such rights and associated operations from Clinigen Holdings Limited, Clinigen Healthcare
Limited, and Clinigen, Inc, which we refer to collectively as Clinigen. Ownership of Proleukin® provides an additional revenue source,

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allows Iovance to secure its supply chain and logistics surrounding TIL cell therapy administration, and lowers cost of goods and clinical
trial expenses for Proleukin® used with TIL cell therapies.

Proleukin® is an IL-2 product used in the Amtagvi™ treatment regimen. Proleukin® has also received regulatory approvals for
treatment  of  adults  with  metastatic  melanoma  and  metastatic  renal  cell  carcinoma  in  the  United  States.  Proleukin®  is  also  licensed  in
multiple countries around the world for treatment of patients with metastatic renal cell carcinoma and/or metastatic melanoma.

TIL Cell Therapy Clinical Development in Advanced, Metastatic or Unresectable Solid Tumor Cancers

TIL cell therapy is a T cell-based immunotherapy technology platform that leverages patient-specific cells to recognize and attack
diverse cancer cells that are unique to each patient. Unlike other cell therapies that act on a single or small number of shared antigen
targets common to certain tumors, our individualized T cell therapy are polyclonal or designed to target a variety of neoantigens that are
unique to the patient or tumor. We believe this polyclonal cell therapy is potentially applicable to many solid tumor cancers, where the
majority of immune targets are patient-specific. Our TIL cell therapy platform and manufacturing process have been initially validated
through the FDA approval of Amtagvi™.

We have investigated TIL cell therapy in global, multicenter clinical trials in advanced melanoma, cervical cancer, non-small cell
lung cancer, or NSCLC, and head and neck squamous cell carcinoma, or HNSCC. Through ongoing academic collaborations, as well as
government and other partners, we are investigating the next frontier for TIL cell therapy in other tumor types and treatment settings.

● Frontline Advanced Melanoma: In frontline advanced melanoma patients who are naïve to anti-PD-1 therapy, we are
investigating  lifileucel  in  combination  with  pembrolizumab  in  the  Phase  3  TILVANCE-301  clinical  trial.  TILVANCE-
301 is a randomized Phase 3 clinical trial intended to support registration in advanced frontline melanoma as well as to
serve  as  a  confirmatory  trial  for  full  approval  in  post-anti-PD-1  advanced  melanoma.  TILVANCE-301  is  expected  to
enroll approximately 670 patients and features dual primary endpoints of ORR and progression free survival, or PFS, by
a blinded independent review committee.

● Non-Small  Cell  Lung  Cancer:  In  NSCLC,  we  are  investigating  LN-145  TIL  cell  therapy  in  two  clinical  trials  in
NSCLC  patient  populations  with  significant  unmet  need.  IOV-LUN-202  is  a  registrational  clinical  trial  of  LN-145  in
advanced  NSCLC  patients  who  have  progressed  following  chemotherapy  and  anti-PD-1  therapy.  The  IOV-COM-202
trial  in  solid  tumors  also  includes  cohorts  of  NSCLC  patients  treated  with  LN-145  monotherapy  and  combination
therapy.

● Gynecological Cancers: We are planning to initiate a clinical trial for lifileucel TIL cell therapy in endometrial cancer to
potentially address the unmet need for patients previously treated with anti-PD-1 therapy. We also are exploring lifileucel
in advanced cervical cancer in the C-145-04 multicenter Phase 2 clinical trial.

● Next  Generation  TIL  Cell  Therapy:  Our  first  genetically  modified,  PD-1  inactivated  TIL  cell  therapy,  IOV-4001,
entered  a  first-in-human  Phase  1/2  clinical  trial,  IOV-GM1-201,  in  2022  in  patients  with  previously  treated  advanced
melanoma  and  NSCLC.  IOV-4001  utilizes  the  gene-editing  TALEN®  technology,  licensed  from  Cellectis  S.A.,  or
Cellectis, to inactivate the gene coding for the programmed cell death protein-1, or PD-1.

● Additional Solid Tumor Cancers: Iovance TIL cell therapy has been investigated in additional solid tumor cancers in
Iovance-and-investigator-sponsored  clinical  trials.  LN-145  was  evaluated  as  a  monotherapy  and  in  combination  with
pembrolizumab  in  the  Phase  2  C-145-03  and  IOV-COM-202  clinical  trials  in  multiple  patient  cohorts  with  metastatic
HNSCC. Indications studied in investigator sponsored clinical trials supported by Iovance include soft tissue sarcoma,
osteosarcoma,  pancreatic  and  colorectal  cancer,  platinum  resistant  ovarian  cancer,  anaplastic  thyroid  cancer  and  triple
negative breast cancer.

Additional information is included in the Iovance-Sponsored Clinical Trials section of this Annual Report on Form 10-K.

Intellectual Property

We established leadership within the field of TIL cell therapy by building and augmenting a leading intellectual property portfolio
developed internally and licensed from third parties. We currently own more than 60 U.S. patents related to TIL cell therapy, including
patents directed to compositions and methods of treatment in a broad range of cancers. Pending patent applications and granted patents
cover the fields of TIL cell therapy, genetically edited TIL cell therapy, selected TIL cell therapy, small core or biopsy TIL cell therapy,

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fresh  or  frozen  tumor  digest-derived  TIL  cell  therapy,  TIL  and  ICI  combination  therapy,  marrow  infiltrating  lymphocytes,  or  MIL
therapy,  and  PBL  therapy.  We  also  license  rights  to  a  broad  range  of  technologies  related  to  our  platforms.  More  details  on  our
intellectual property portfolio are included within this Annual Report on Form 10-K.

Iovance-Sponsored Clinical Trials

Frontline Advanced Melanoma

Melanoma is a common type of skin cancer, accounting for an estimated 99,780 patients diagnosed and 7,650 deaths in 2023 in
the U.S. according to the Surveillance, Epidemiology and End Results program, or SEER, program. Following the accelerated approval
of  Amtagvi™,  our  confirmatory  trial  is  designed  to  support  a  registrational  path  for  lifileucel  in  combination  with  pembrolizumab  in
frontline advanced melanoma as well as full U.S. approval for Amtagvi™, which has received an accelerated U.S. approval in its initial
indication in post-anti-PD-1 advanced melanoma.

During the second quarter of 2023, the first patient was randomized in TILVANCE-301 in patients with unresectable or metastatic
melanoma who have had no prior therapy for metastatic or unresectable disease. TILVANCE-301 is a Phase 3 multicenter, open-label,
randomized, parallel group, treatment clinical trial that will randomize approximately 670 patients to investigate lifileucel in combination
with pembrolizumab in the experimental arm compared with pembrolizumab monotherapy in the control arm. In the experimental arm, a
tumor sample is procured from each patient for lifileucel manufacturing using the Gen 2 process. Patients receive pembrolizumab prior
to and after the lifileucel regimen until disease progression. In the control arm, pembrolizumab monotherapy is given every six weeks
until disease progression, with an optional crossover to lifileucel monotherapy upon confirmed progressive disease verified by a blinded
independent review committee, or BIRC, and if patients meet eligibility criteria.

In 2022, we reached agreement with the FDA on the TILVANCE-301 clinical trial design, including dual primary endpoints of
ORR to support accelerated approval and PFS to support full approval of lifileucel in frontline advanced melanoma. The dual primary
endpoints will be assessed by a BIRC using RECIST 1.1.

Our strategy in frontline melanoma is supported by clinical results from the ongoing Cohort 1A of our IOV-COM-202 clinical trial
as well as prior published NCI data for TIL monotherapy in anti-PD-1 naïve melanoma patients. As of the most recent detailed update
from April 2022 in Cohort 1A, we observed a 67% ORR in twelve patients per RECIST 1.1. Eight patients had a confirmed objective
response, including three complete responses and five partial responses. Six responders had ongoing response, and five responders had a
duration  of  response  of  more  than  one  year  at  the  time  of  the  data  cut.  The  treatment-emergent  adverse  event,  or  TEAE,  profile  was
consistent  with  the  underlying  advanced  disease  and  the  known  adverse  event  profiles  of  pembrolizumab,  lymphodepletion  and  IL-2
regimens. In January 2023, we disclosed that updated efficacy and safety results from nearly 20 patients treated in Cohort 1A remain
consistent with previously reported Cohort 1A data and continue to support our strategy in frontline advanced melanoma.

Our strategy is also supported by several NCI trials of TIL cell therapy that were conducted prior to anti-PD-1 approval. In anti-
PD-1 naïve melanoma patients, ORR was over 50% and approximately 22-24% of patients had a complete response per RECIST 1.1.
Most complete responses remained ongoing in three to seven years of follow up.

LN-145 for Advanced, or Metastatic or Unresectable NSCLC

According to the SEER program estimates, approximately 238,340 people were diagnosed with lung and bronchus cancers, and
approximately  127,070  deaths  occurred  related  to  these  cancers  in  the  U.S.  in  2023.  Patients  previously  treated  with  standard  of  care
chemo-immunotherapy have a poor prognosis, limited treatment options and a real-world overall survival of less than six months.

We are developing our TIL cell therapy, LN-145, alone and in combination with approved therapies to treat advanced NSCLC in

the IOV-LUN-202 and IOV-COM-202 clinical trials.

IOV-LUN-202 Registrational Trial

IOV-LUN-202 is a single-arm, registrational trial investigating LN-145 in patients who have progressed on or after chemotherapy
and anti-PD-1 therapy for advanced (unresectable or metastatic) NSCLC without epidermal growth factor receptor, or EGFR, ROS proto-
oncogene receptor tyrosine kinase, or ROS, anaplastic lymphoma kinase, or ALK, genomic mutations and had received at least one line
of an FDA-approved targeted therapy if indicated by other actionable tumor mutations. IOV-LUN-202 includes two

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registrational patient cohorts (Cohorts 1 and 2) and two exploratory patient cohorts (Cohort 3 and 4). The programmed death-ligand 1, or
PD-L1, tumor proportion score, or TPS, in patients at the time they started frontline therapy was less than one percent or unknown in
patients in Cohort 1 and greater than or equal to one percent in patients in Cohort 2. In Cohort 3, TIL is extracted from core biopsy and
manufactured  using  our  Gen  3  process.  In  Cohort  4,  patients  undergo  surgical  resection  for  TIL  manufacturing  prior  to  disease
progression. Based on the regulatory discussions and positive regulatory feedback received by the FDA regarding the design of the IOV-
LUN-202 trial, we plan to enroll a total of approximately 120 patients into the registrational Cohorts 1 and 2 of the IOV-LUN-202 trial.

In July 2023, we announced a preliminary analysis of the IOV-LUN-202 trial from 23 NSCLC patients treated with LN-145. An
objective response rate of 26.1% per RECIST 1.1 was observed in six patients, with one complete response and five partial responses,
and a disease control rate of 82.6%. While still early on study, the median duration of response, or DOR, was not reached. The DOR
ranged from 1.4+ months to 9.8+ months. Treatment-emergent adverse events were consistent with the underlying disease and known
adverse  event  profiles  of  non-myeloablative  lymphodepletion  and  interleukin-2.  We  also  reported  additional  ongoing  responses,  and
duration of response greater than six months for 71% of the confirmed responders in the trial, in an updated analysis from November of
2023.

We believe the results from IOV-LUN-202 in previously treated patients with advanced NSCLC continue to support the potential

benefit of one-time TIL cell therapy, including the opportunity for more durable responses than available second line chemotherapies.

The  opportunity  for  TIL  cell  therapy  in  NSCLC  is  also  supported  by  clinical  results  for  LN-145  in  heavily  pre-treated  patients
with  NSCLC  (Cohort  3B)  in  our  IOV-COM-202  trial  in  solid  tumors.  At  the  Society  for  Immunotherapy  of  Cancer,  or  SITC,  in
November 2021, we reported Cohort 3B results from 28 patients who had progressed on or after prior immune checkpoint inhibitor, or
ICI, therapy, including patients with oncogene-driven tumors who received prior tyrosine kinase inhibitor, or TKI, therapy. The ORR was
21.4%  per  RECIST  1.1,  including  one  complete  response  and  five  partial  responses.  The  complete  response  remained  ongoing  at  37
months following treatment in a subsequent data extract from November of 2022. All Cohort 3B patients had received prior anti-PD-1/-
L1 therapy, and all six responding patients had also received prior chemotherapy. The TEAE profile was consistent with the underlying
disease and known adverse event profiles of non-myeloablative lymphodepletion and IL-2.

On December 22, 2023, the FDA placed a partial clinical hold on the IOV-LUN-202 trial in response to a reported Grade 5 (fatal)
serious adverse event, or SAE, potentially related to the non-myeloablative lymphodepletion pre-conditioning regimen. We have paused
enrollment and the LN-145 treatment regimen for new patients in IOV-LUN-202 during the clinical hold. Patients previously treated with
LN-145 in the IOV-LUN-202 trial continue to be monitored and followed according to the trial protocol. While enrollment is currently
paused due to an FDA-imposed clinical hold, enrollment is expected to be completed in 2025. We are working closely with the FDA to
safely resume enrollment in the IOV-LUN-202 trial as soon as possible in 2024.  

Frontline NSCLC Development and Regulatory Strategy

We  are  preparing  to  meet  with  the  FDA  in  2024  to  discuss  a  randomized  confirmatory  trial  of  LN-145  in  frontline  advanced
NSCLC  patients.  This  confirmatory  trial  in  frontline  advanced  NSCLC  is  expected  to  be  well  underway  at  the  time  of  a  potential
approval of LN-145 in advanced post-anti-PD-1 NSCLC. Our goal is to improve frontline NSCLC therapy by adding TIL cell therapy to
standard of care pembrolizumab maintenance therapy, administered after completion of the initial chemo-immunotherapy. This approach
is supported by initial results from Cohort 3A in the IOV-COM-202 trial in solid tumors. Cohort 3A is evaluating LN-145 in combination
with pembrolizumab in patients who have not received prior immunotherapy, including ICIs.

In September 2023, we reported preliminary Cohort 3A data in an oral presentation at the International Association for the Study
of  Lung  Cancer,  or  IASLC,  2023  World  Conference  on  Lung  Cancer.  The  confirmed  ORR  per  RECIST  1.1  was  58.3%  in  twelve
treatment-naïve or post-chemotherapy patients with EGFR wild-type disease, regardless of PD-L1 status. Duration of responses of 15.4+,
10.2 +, 7.1, 6.9, 6.9+, 4.6, and 3.7 months were observed in seven patients, and three of these responses remained ongoing. Safety was
consistent with other studies of Iovance TIL cell therapies in combination with pembrolizumab. Study enrollment remains ongoing.

In  addition  to  Cohort  3A,  a  separate  patient  cohort,  Cohort  3C,  in  COM-202  is  investigating  LN-145  in  combination  with

ipilimumab or nivolumab in patients who previously received only a prior line of approved systemic ICI monotherapy.

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Gynecological Cancers

According to the SEER program estimates, in 2023, 66,200 women were diagnosed with uterine cancer and approximately 13,030
uterine  cancer-related  deaths  occurred  in  the  U.S.  Moreover,  approximately  13,960  women  were  diagnosed  with  cervical  cancer,  and
approximately 4,310 cervical cancer-related deaths occurred in the U.S.

Advanced endometrial cancer, the most common form of uterine cancer, represents a significant opportunity for TIL cell therapy.
Analogous to other tumor types, TIL cell therapy may offer benefit in the emerging treatment setting of patients who have no currently
approved therapies for progression after post-anti-PD1 therapy and chemotherapy. We plan to begin a Phase 2 trial of lifileucel in post-
anti-PD-1  and  post-chemotherapy  advanced  endometrial  cancer,  including  mismatch  repair,  or  MMR,  deficient  and  MMR  proficient
patient populations in the first half of 2024. Based on the TIL mechanism of action, the benefit of TIL cell therapy is likely to extend
across patients with tumors that are MMR mechanism deficient and proficient.

The  potential  for  TIL  cell  therapy  in  gynecological  cancers  is  also  supported  by  our  clinical  data  for  lifileucel  alone  and  in
combination  with  pembrolizumab  in  advanced  cervical  cancer.  C-145-04  is  a  Phase  2,  multicenter  pivotal  clinical  trial  that  included
patient previously treated with chemotherapy (Cohort 1), previously treated with chemo and ICIs (Cohort 2), and patients who had not
received  prior  systemic  therapy  (Cohort  3).  Cohorts  1  and  2  received  lifileucel  monotherapy  and  Cohort  3  received  lifileucel  in
combination  with  pembrolizumab.  Initial  results  from  the  C-145-04  clinical  trial  were  reported  at  the  American  Society  of  Clinical
Oncology in June 2019 and the SITC in November 2021.

Following our assessment of the current treatment landscape in gynecological cancers, we are prioritizing endometrial cancer over
cervical cancer. The C-145-04 clinical trial is expected to close during 2024. We plan to continue to explore the use of TIL cell therapies
in  cervical  cancer,  including  using  genetically  modified  TIL  products  and  using  TIL  products  in  combination  with  anti-PD-1/PD-L1
blocking antibody therapies in frontline cervical cancer, with the goal of returning to clinical development in the future.

IOV-4001 for Advanced Melanoma and NSCLC

We  have  a  worldwide  exclusive  license  from  Cellectis  that  enables  us  to  use  certain  TALEN®  technology  addressing  multiple
gene  targets  in  several  cancer  indications,  to  develop  genetically  edited  and  potentially  more  potent  TIL  cell  therapies.  Our  lead
genetically  modified  TIL  cell  therapy,  IOV-4001,  utilizes  this  TALEN®  technology  to  inactivate  the  gene  coding  for  PD-1.  We  are
investigating the safety and efficacy of IOV-4001 in IOV-GM1-201, a multicenter, first-in-human Phase 1/2 clinical trial in two patient
cohorts.  Cohort  1  includes  patients  with  advanced  melanoma,  who  were  previously  treated  with  anti-PD-1/PD-L1  blocking  antibody
therapy and, in those patients with BRAF mutations, after BRAF/MEK inhibitor therapy. In Cohort 2, we are investigating IOV-4001 in
patients with metastatic NSCLC who have received no more than three prior lines of therapy, with or without oncogene driver mutations.
We treated the first patient with IOV-4001 in the third quarter of 2022 and the Phase 1 safety portion of the clinical trial is ongoing.

Additional Clinical Trials

We previously investigated the potential for TIL cell therapy in metastatic HNSCC. The Phase 2 C-145-03 trial investigated LN-
145 as monotherapy, using various manufacturing processes. The trial began in June 2017 and closed in January 2021 after reaching its
pre-specified  enrollment  target.  We  also  investigated  LN-145  in  combination  with  pembrolizumab  in  patients  with  HNSCC  who  are
naïve to anti-PD-1 therapy in IOV-COM-202 Cohort 2A. The results from Cohort 2A are supportive of our strategies to develop TIL cell
therapy in combination with pembrolizumab in earlier treatment settings for solid tumor cancers.

We have also explored the potential for polyclonal T cell immunotherapies in blood cancers. A first-in-human clinical trial, IOV-
CLL-01,  evaluated  the  safety  and  efficacy  of  IOV-2001,  our  polyclonal  PBL  therapy,  in  patients  with  relapsed  or  refractory  chronic
lymphocytic leukemia, or CLL, and small lymphocytic lymphoma, or SLL.

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Next-Generation TIL Cell Therapy Product Candidates

Our next-generation technology platforms are designed to optimize outcomes with TIL cell therapy across three key initiatives:

genetic modifications, potency, and new treatment regimens.

● Genetic modifications: We are pursuing several targets for genetic modification that utilize the gene-editing TALEN® platform
licensed  from  the  clinical-stage  biotechnology  company,  Cellectis.  Single-  and  multiple-  knockouts  may  further  harness  the
immune  system  response  to  cancer  and  potentially  increase  the  potency  of  TIL  cell  therapy.  Preclinical  development  is  also
ongoing  with  cytokine-tethered  TIL  products  and  additional  TIL  products  and  TIL-cell  lines  using  transient  and  stable  gene
insertion and inactivation, which may expand and activate TIL to achieve better efficacy while avoiding systemic side effects of
cytokines.

● Potency: We are exploring potential approaches to increase potency of the final TIL product through sorting and selection of
specific TIL, such CD39/69 double-negative TIL, and the use of certain inhibitors or other reagents in TIL expansion cultures.
We have also manufactured and investigated patient cohorts treated with TIL candidate, LN-145-S1, manufactured from TIL
selected for PD-1 expression.  

● New  treatment  regimens:  We  are  exploring  potential  improvements  to  the  TIL  treatment  regimen.  IND-enabling  studies  are
investigating IOV-3001, an antibody cytokine-engrafted protein, or IL-2 analog, which we licensed from Novartis Pharma AG.
in 2020.

Manufacturing Processes

Iovance  was  founded  to  build  upon  the  promise  of  TIL  cell  therapy  that  was  previously  demonstrated  in  single-center  clinical
trials at academic centers. The NCI and other academic centers have historically manufactured TIL cell therapies for research purposes;
using site-specific processes that have not been scalable or standardized to serve sizeable patient populations. Our multicenter trials and
manufacturing processes have transformed TIL cell therapy into a commercially viable treatment which many more patients with cancer
can  access.  At  the  end  of  2023,  more  than  700  patients  had  been  treated  with  an  Iovance  TIL  cell  therapy  manufactured  using  our
proprietary processes.

Our  internal  research  and  process  development  team  has  innovated  TIL  manufacturing  and  processing.  Our  initial  Gen  1
manufacturing  process  modified  the  NCI’s  original  TIL  manufacturing  and  processing  so  that  it  could  be  reproduced  in  a  cGMP
environment. Gen 1 TIL expansion occurred over a 5-to-6-week period and produced a non-cryopreserved product.

Building upon initial success with the Gen 1 process, our proprietary Gen 2 technology introduces manufacturing and logistical
efficiencies  aimed  at  further  optimizing  treatment  and  streamlining  distribution  processes.  Gen  2  manufacturing  takes  22  days  and
produces  a  cryopreserved  final  product.  We  currently  use  Gen  2  to  manufacture  our  commercial  product,  Amtagvi™,  and  in  most
ongoing  Iovance  clinical  trials.  We  are  also  committed  to  further  improving  and  streamlining  the  processes  for  TIL  cell  therapy
manufacturing  and  tumor  sample  collection.  For  example,  we  have  developed  a  proprietary  process  for  genetic  modification  to
manufacture  IOV-4001  and  other  next  generation  TIL  cell  therapy  candidates,  as  well  as  a  16-day  Gen  3  process  to  manufacture  TIL
from core biopsy as a less invasive collection of tumor samples.

Gen 2 Manufacturing Process

During the Gen 2 process, TILs are multiplied into the billions or 109 – 1011 of TIL. The process begins by collecting the patient’s
tumor  tissue  by  surgical  biopsy  for  shipment  to  a  central  manufacturing  facility,  the  iCTC  or  our  CMO.  The  tumor  is  fragmented  to
facilitate a clear path for TILs to leave the tumor tissue and placed in media that optimizes the growth of TIL rather than other cell types.
From days 0-11, cells grow slowly during the pre-rapid expansion, or pre-rep phase. The rapid expansion phase occurs from days 11-22.
On Day 11, the cells are transferred to a larger bioreactor and feeder cells are introduced to further activate the TILs to proliferate. On
day 16, the TILs are harvested while maintaining a closed system before they are counted and placed into multiple bioreactors which are
incubated one last time. On day 22, TILs are filtered, washed, concentrated, and formulated with cryopreservation media before being
placed  in  the  final  product  bags  and  shipped  back  to  the  patient’s  treatment  center.  Our  commercial  product,  Amtagvi™,  undergoes
additional analytical and quality testing to meet certain criteria for commercial release prior to shipment to the ATCs.

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Large-Scale Centralized Manufacturing for TIL Cell Therapies

The  cell  processing  activities  for  our  TIL  cell  therapies  are  conducted  at  centralized  facilities  under  cGMP,  using  qualified
equipment and materials. We are manufacturing our commercial product, Amtagvi™, at both our internal facility and a CMO to meet
manufacturing capabilities and the current and expected demand for commercialization and clinical trials. The iCTC is the first FDA-
approved,  centralized  and  scalable  cGMP  manufacturing  facility  dedicated  to  producing  TIL  cell  therapies.  Through  a  manufacturing
service agreement, or MSA, with WuXi Advanced Therapies, Inc., or WuXi, WuXi manufactures, packages, ships and handles quality
assurance and quality control of our commercial product, Amtagvi™, working closely with our employees.

Certain  clinical  trials  for  our  investigational  TIL  cell  therapies  are  also  supported  by  our  MSA  with  WuXi  as  well  as  our
Sponsored Research Agreement with the H. Lee Moffitt Cancer Center, or Moffitt. These relationships are described in more detail in the
Research, Development, Manufacturing and License Agreements for TIL Cell Therapy section of this Annual Report on Form 10-K.

We expect to rely on our own manufacturing capabilities, together with other third parties, for the manufacturing and processing
of  commercial  and  investigational  TIL  cell  therapy  products  to  ensure  sufficient  capacity  is  available  for  commercial  purposes  and
clinical trials. As an alternative, we also believe that, given sufficient time to hire staff and increase production, we have the ability to
move our production of commercial and investigational TIL cell therapy products entirely in house. We believe that all materials and
components utilized in the production of the final TIL product are readily available from qualified suppliers.

Research, Development, Manufacturing and License Agreements for TIL Cell Therapy

WuXi Advanced Therapies, Inc.

Manufacturing and Services Agreements

In November 2016, we entered into a three-year manufacturing services agreement, or the First WuXi MSA, with WuXi, pursuant
to  which  WuXi  agreed  to  provide  manufacturing  and  other  services,  which  has  since  been  amended  and  assigned  to  our  subsidiary
Iovance  Biotherapeutics  Manufacturing  LLC.  Under  the  First  Wuxi  MSA,  we  entered  into  two  statements  of  work  for  two  cGMP
manufacturing suites to be operated by WuXi for us. The terms of one of these statements of work were extended to December 2022.

In October 2022, Iovance Biotherapeutics Manufacturing LLC entered into an additional three-year MSA, or the Second WuXi
MSA, with WuXi and its parent company WuXi Apptec, Co. Ltd. The Second WuXi MSA and its related statement of work superseded
the statement of work under the First WuXi MSA with respect to commercial, clinical manufacturing and related testing services for the
two existing manufacturing suites. Both suites are expected to be capable of use for the commercial manufacture of our products.

National Institutes of Health and the National Cancer Institute

Cooperative Research and Development Agreement

In August 2011, we signed a five-year Cooperative Research and Development Agreement, or CRADA, with the NCI to work on
the development of adoptive cell immunotherapies in multiple solid tumor types, including unmodified TIL as a stand-alone therapy or in
combination, improved methods for the generation and selection of TIL cell therapy with anti-tumor reactivity and strategies for more
potent TILs. The CRADA was amended in 2015 and 2016, to, among other things, extend the term of the CRADA through August 2021,
include  new  indications  such  as  bladder,  lung,  triple-negative  breast,  and  Human  Papilloma  Virus,  or  HPV,  associated  cancers  and
modify  the  focus  on  the  development  of  unmodified  TIL  as  a  stand-alone  therapy  or  in  combination.  The  parties  have  continued  the
development of improved methods for the generation and selection of TIL with anti-tumor reactivity in metastatic melanoma, bladder,
lung, breast, and HPV-associated cancers.

In August 2021, a third amendment extended the term of the CRADA by three years to August 2024, among other things. The
research plan in this third amendment includes the evaluation in clinical trials of strategies for development of more potent TILs, such as
selection of CD39/69 double negative cells and the use of certain inhibitors or other reagents in TIL expansion cultures.

Pursuant to the terms of the CRADA, as amended, we are required to make quarterly payments of $0.5 million to the NCI for
support of research activities. To the extent we license patent rights relating to a TIL-based product candidate, we will be responsible for
all patent-related expenses and fees, past and future. In addition, we may be required to supply certain test articles, including TIL,

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grown and processed under cGMP conditions, suitable for use in clinical trials. We or the NCI may unilaterally terminate the CRADA
for any reason or for no reason, at any time, by providing written notice at least 60 days before the desired termination date.

Patent License Agreement Related to the Development and Manufacture of TIL Cell Therapies

We have licensed exclusive, co-exclusive, and non-exclusive licenses from the National Institutes of Health, or the NIH, to certain

technologies relating to autologous tumor infiltrating lymphocyte adoptive cell therapy products.

We  entered  into  an  Exclusive  Patent  License  Agreement,  or  the  Patent  License  Agreement,  with  the  NIH,  in  2011,  which  was
amended in 2015. Pursuant to the Patent License Agreement, as amended, the NIH granted us licenses, including exclusive, co-exclusive,
and non-exclusive licenses, to certain technologies relating to autologous tumor infiltrating lymphocyte adoptive cell therapy products
for the treatment of metastatic melanoma, lung, breast, bladder and HPV-positive cancers.

In  May  2021,  we  entered  into  an  Amended  and  Restated  Patent  License  Agreement  with  NIH,  which  included  the  grant  of
additional  exclusive,  worldwide  patent  rights  in  the  indications  to  interleukin-15  and  interleukin-21  cytokine-tethered  TIL  technology,
and expanded the non-exclusive, worldwide field of use to all cancers. Effective August 1, 2022, we entered into a Second Amended and
Restated  Patent  License  Agreement  with  NIH  to  include  additional  exclusive,  worldwide  patent  rights  to  TIL  products  expressing
interleukin-12, expanded rights to TIL selection technologies previously licensed under the Exclusive Patent License Agreement below,
and additional non-exclusive, worldwide patent rights to certain technologies related to enhancing TIL potency.

The Second Amended and Restated Patent License Agreement requires us to pay royalties based on a percentage of net sales in
jurisdictions  where  patent  rights  exist,  which  percentage  can  fall  into  a  tier  that  may  be  less  than  one  percent  to  mid-single  digits
depending upon certain events, including the exclusivity of the rights, and we expect lower overall royalty payments as a result. We also
agreed to pay potential milestone payments on the achievement of certain clinical, regulatory, and commercial sales milestones for each
of the exclusive indications and other direct costs incurred by the NIH pursuant to the Second Amended and Restated Patent License
Agreement. We have made and anticipate making additional milestone payments pursuant to the Second Amended and Restated Patent
License  Agreement,  including  payments  ranging  from  several  hundred  thousand  dollars  to  the  mid-single-digit  millions  of  dollars,  in
conjunction  with  certain  development  milestones,  the  approval  of  a  BLA  or  its  foreign  equivalent,  or  the  first  U.S.  and  foreign
commercial sales of any of our product candidates covered by the Second Amended and Restated Patent License Agreement. The term of
the  Second  Amended  and  Restated  Patent  License  Agreement  continues  until  the  expiry  of  the  last-to-expire  patent  rights  licensed
thereunder, and the agreement contains standard termination provisions.

Exclusive Patent License Agreement Related to TIL Selection

In February 2015, we entered into an exclusive patent license agreement, or the Exclusive Patent License Agreement, with the
NIH under which we received an exclusive worldwide license under the selected TIL patents. This license was superseded and replaced
by the Second Amended and Restated Patent License Agreement.

H. Lee Moffitt Cancer Center

Research Collaboration and Clinical Grant Agreement

In June 2020, we entered into a Sponsored Research Agreement with Moffitt, with a term that ends either upon completion of the
research  thereunder  or  on  July  1,  2022,  whichever  is  sooner.  In  August  2023,  this  agreement  was  extended  until  September  2023.  In
December 2023, this agreement was extended until the later of November 30, 2024 or a mutually agreed determination of the completion
of the Sponsored Research Agreement.

In  December  2016,  we  entered  into  a  clinical  grant  agreement  with  Moffitt  to  support  an  ongoing  clinical  trial  at  Moffitt  that
combines  TIL  cell  therapy  with  nivolumab  for  the  treatment  of  patients  with  metastatic  melanoma.  In  June  2017,  we  entered  into  a
second clinical grant agreement with Moffitt to support a new clinical trial at Moffitt that combines TIL cell therapy with nivolumab for
the  treatment  of  patients  with  non-small  cell  lung  cancer,  under  which  we  obtained  a  non-exclusive,  royalty-free  license  to  any  new
Moffitt inventions made in the performance of the agreement. Under both clinical grant agreements with Moffit, we have non-exclusive
rights to clinical data arising from the respective clinical trials, which are now concluded.

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Exclusive License Agreements

We have exclusive license agreements to Moffitt’s patent-pending and patented technologies related to methods for improving TIL
for  adoptive  cell  therapy  using  toll-like  receptor,  or  TLR,  agonists,  the  use  of  4-1BB  agonists  in  conjunction  with  TIL  manufacturing
processes and therapies, and tumor digests in conjunction with TIL manufacturing processes and therapies.

We  entered  into  a  license  agreement  with  Moffitt,  or  the  First  Moffitt  License,  effective  as  of  June  28,  2014,  under  which  we
received a worldwide license to Moffitt’s rights to patent-pending technologies related to methods for improving TIL for adoptive cell
therapy using TLR agonists. Unless earlier terminated, the term of the license extends until the earlier of the expiration of the last issued
patent related to the licensed technology or 20 years after the effective date of the license agreement.

Pursuant to the First Moffitt License, we paid an upfront licensing fee and a patent issuance fee upon the issuance of the first U.S.
patent covering the subject technology. In addition, we agreed to pay milestone license fees upon completion of specified milestones,
customary royalties based on a specified percentage of net sales, which percentage is in the low single digits, and sublicensing payments,
as  applicable,  and  annual  minimum  royalties  beginning  with  the  first  sale  of  products  based  on  the  licensed  technologies,  which
minimum royalties will be credited against the percentage royalty payments otherwise payable in that year. We will also be responsible
for all costs associated with the preparation, filing, maintenance and prosecution of the patent applications and patents covered by the
First Moffitt License related to the treatment of any cancers in the U.S., Europe and Japan and in other countries designated by us in
agreement with Moffitt.

In May 2018, we entered into a second license agreement with Moffitt, or the Second Moffitt License, under which we received an
exclusive  license  to  Moffitt’s  rights  to  patent-pending  technologies  related  to  the  use  of  4-1BB  agonists  in  conjunction  with  TIL
manufacturing processes and therapies. Pursuant to the Second Moffitt License, we paid an upfront licensing fee, and an annual license
maintenance fee is also payable commencing on the first anniversary of the effective date. We also agreed to pay an annual commercial
use payment for each indication for which a first sale has occurred.

We subsequently exercised an option to exclusively license Moffitt’s rights to patent pending technologies related to the use of
tumor digests in conjunction with TIL manufacturing processes and therapies and entered into an amended and restated Second Moffitt
License  in  October  2021,  or  the  Amended  &  Restated  Second  Moffit  License,  to  include  these  rights.  Pursuant  to  the  Amended  &
Restated Second Moffitt License, we paid an upfront licensing fee in 2021. We also agreed to pay an annual commercial use payment for
each indication for which a first sale has occurred for products relating to the use of 4-1BB agonists and for products relating to the use
of tumor digests covered by the license.

The University of Texas M.D. Anderson Cancer Center, or MDACC

Strategic Alliance Agreement

In April 2017, we entered into a Strategic Alliance Agreement, or the SAA, with MDACC, under which we and MDACC agreed
to conduct clinical and preclinical research studies. We agreed in the SAA to provide total funding not to exceed approximately $14.2
million for the performance of the multi-year studies under the SAA. In return, we acquired all rights to inventions resulting from the
studies  and  have  been  granted  a  non-exclusive,  sub-licensable,  royalty-free,  and  perpetual  license  to  specified  background  intellectual
property of MDACC reasonably necessary to exploit, including the commercialization thereof. We have also been granted certain rights
to clinical data generated by MDACC outside of the clinical trials to be performed under the SAA. The SAA’s term shall continue in
effect  until  the  later  of  the  fourth  anniversary  of  the  SAA  or  the  completion  or  termination  of  the  research  and  receipt  by  us  of  all
deliverables due from MDACC thereunder.

Cellectis S.A.

Research Collaboration and Exclusive Worldwide License Agreement

In December 2019, we entered into a research collaboration and exclusive worldwide license agreement whereby we will license
gene-editing  technology  from  Cellectis,  a  clinical-stage  biopharmaceutical  company,  to  develop  TIL  cell  therapies  that  have  been
genetically  edited,  including  a  PD-1  inactivated  product  that  we  refer  to  as  IOV-4001.  Financial  terms  of  the  license  include  annual
license payments and development, regulatory and sales milestone payments from us to Cellectis, as well as royalty payments based on
net sales of TALEN® modified TIL products.

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Novartis Pharma AG

License Agreement

In  January  2020,  we  obtained  a  license  from  Novartis  Pharma  AG,  or  Novartis,  to  develop  and  commercialize  an  antibody
cytokine engrafted protein, which we refer to as IOV-3001. Under the agreement, we have paid an upfront payment to Novartis and may
pay future milestones related to initiation of patient dosing in various phases of clinical development for IOV-3001 and approval of the
product in the U.S., the European Union, or EU, and Japan. Novartis is also entitled to low-to-mid single digit percentage royalties from
commercial sales of the product.

Boehringer Ingelheim Biopharmaceuticals GmbH

In May 2023, as part of the completion of the acquisition of the worldwide rights to Proleukin®, we inherited a manufacturing and
supply agreement from Clinigen with Boehringer Ingelheim Biopharmaceuticals GmbH, or BI, pursuant to which BI will carry out the
processing,  manufacturing  and  supply  of  Proleukin®  in  unlabeled  vials.  The  term  of  this  agreement  is  through  October  2025,  with
automatic renewals for a period of two years unless terminated as permitted by the contract. Under this agreement, we must purchase a
minimum number of vials each calendar year at fixed prices determined by vial batch size.

TIL Cell Therapy Landscape in Solid Tumors

Immune System and Cancer Surveillance

The immune system recognizes danger signals and responds to threats at a cellular level. The most significant components of the
cellular  aspect  of  the  adaptive  immune  response  are  T  cells,  or  T  lymphocytes,  so  called  because  they  mature  in  the  thymus  and  are
distinguished  from  B-cells  which  mature  in  the  bone  marrow.  T  cells  can  be  distinguished  from  other  white  blood  cells  by  T  cell
receptors present on their cell surface. These receptors contribute to tumor surveillance by helping T cells recognize infected as well as
cancerous cells. T cells are involved in both sensing and killing infected or cancerous cells, as well as coordinating the activation of other
cells in an immune response.

Challenges for Cancer Immunotherapy

According to the SEER program, solid tumor cancers represent more than 90 percent of all cancers diagnosed in the U.S. annually.
Despite  progress  over  the  past  several  decades,  effective  treatment  of  solid  tumors  continues  to  be  challenging  for  several  reasons,
including: (i) intratumoral heterogeneity, (ii) numerous mutations and tumor neoantigens, with <1% shared across patients and lack of
clarity  on  which  mutations  or  neoantigens  are  critical,  and  (iii)  ability  to  adapt  and  evade  treatments  that  target  a  single  mutation.  In
addition,  the  tumor  itself  and  the  tumor  microenvironment  can  suppress  the  patient’s  natural  immune  response.  When  T  cells  with
cancer-specific receptors are absent, present in low numbers, of poor quality, or rendered inactive by suppressive mechanisms employed
by  tumor  tissue,  the  cancer  can  grow  and  spread  to  various  organs.  In  addition,  certain  standard  of  care  treatments  for  cancer  can  be
deleterious to T cells’ ability to kill cancer.

Advancing Immuno-Oncology with Our TIL Technology Platform

We believe that adoptive cell therapy, specifically the use of human polyclonal TIL cells to reengage the immune system, may be
a significant advancement in the treatment of cancer. Our TIL technology platform was validated by the first FDA approval of a TIL cell
therapy  and  is  potentially  applicable  to  many  solid  tumor  cancers.  This  platform  is  focused  on  leveraging  patient-specific  cells  to
recognize and attack diverse cancer cells that are unique to each patient. Unlike cell therapies that act on a single or small number of
shared antigen targets common to certain tumors, TIL cell therapy is an individualized, polyclonal T cell therapy designed to target a
variety of neoantigens that are unique to the patient or tumor.

Our initial strategy is to deliver our commercial product, Amtagvi™, as well as investigational TIL cell therapies for patients with
late-stage solid tumor cancers. After infusion, TIL can potentially infiltrate the tumor to eliminate cancer cells, further proliferate in the
body and potentially overcome several mechanisms of tumor escape to which endogenous T cells may be susceptible due to the immune-
suppressive tumor microenvironment.

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For earlier intervention, we are investigating our TIL cell therapy in combination with ICIs. These ICIs seek to overcome one of
the main escape mechanisms of cancer against an immune system attack. TIL cell therapy and ICIs may work in combination to target
and attack cancer cells while breaking down barriers for the immune system to mount a response.

Competition

The biotechnology and pharmaceutical industries put significant resources into developing novel and proprietary therapies for the
treatment of cancer. We compete with multiple entities who have developed and are developing immuno-oncology therapies, including
large and specialty pharmaceutical and biotechnology companies, academic research institutions and governmental agencies and public
and private research institutions, as well as companies developing novel targeted therapies for cancer. Universities and public and private
research institutions in the U.S. and Europe are also potential competitors. For example, a Phase 3 M14TIL clinical trial comparing TIL
to standard ipilimumab in patients with metastatic melanoma is currently being conducted in Europe by the Netherlands Cancer Institute,
the Copenhagen University Hospital at Herlev, and the University of Manchester. Results from the M14TIL clinical trial were presented
at the European Society for Medical Oncology Congress in September 2022 and published in the New England Journal of Medicine in
December  2022.  While  these  universities  and  public  and  private  research  institutions  primarily  have  educational  objectives,  they  may
develop  proprietary  technologies  that  lead  to  other  FDA-approved  therapies  or  that  secure  patent  protection  that  we  may  need  for  the
development of our technologies and products.

Due  to  the  promising  clinical  therapeutic  effect  of  competitor  therapies  in  clinical  exploratory  trials,  we  anticipate  substantial
direct competition from other organizations developing advanced T cell therapies targeting patients who have received prior anti-PD-1/-
L1  therapies.  In  particular,  we  expect  to  compete  with  other  new  therapies  for  our  lead  indications  developed  by  companies  such  as
Agenus,  BeyondSpring,  Bristol-Myers  Squibb,  Merck,  Nektar  Therapeutics,  Checkmate  Pharmaceuticals,  Daiichi  Sankyo,  Eisai,
Exelixis, Moderna, Replimune, Regeneron Pharmaceuticals, Pfizer, and Genmab. We also may compete with other TIL cell therapies in
development  by  companies  such  as  Instil  Bio,  Achilles  Therapeutics,  KSQ  Therapeutics,  Obsidian  Therapeutics,  Immatics,  TILT
Biotherapeutics,  WindMIL  Therapeutics,  GRIT  Biotechnology,  Lyell  Immunopharma,  Cellular  Biomedicine  Group,  and  others.
Furthermore, we may compete with therapies based on genetically engineered T cell receptors rendered reactive against tumor-associated
antigens prior to their administration to patients, as well as TIL cell therapies that are designed to be specific to neoantigens, including
products  developed  by  Adaptimmune  Therapeutics,  Alaunos  Therapeutics,  Intima  Bioscience,  Marker  Therapeutics,  Turnstone
Biologics,  Neogene  and  others.  To  date,  these  technologies  have  been  primarily  applicable  to  hematologic  malignancies,  but  their
application in solid tumor indications may create competition with us. We may also face competition from immunotherapy treatments
offered  by  companies  such  as  Amgen,  AstraZeneca,  Bristol-Myers  Squibb,  Merck,  Pfizer,  Regeneron  Pharmaceuticals,  Roche,  and
BioNTech. We may also face competition from novel IL-2 treatments in development by Alkermes, Werewolf, Merck, Sanofi, Neoleukin
Therapeutics and others. Many of these companies and our other current and potential competitors have substantially greater research
and development capabilities and financial, scientific, regulatory, manufacturing, marketing, sales, human resources, and experience than
we  do.  Many  of  our  competitors  have  several  therapeutic  products  that  have  already  been  developed,  approved  and  successfully
commercialized, or are in the process of obtaining regulatory approval for their therapeutic products in the U.S. and internationally. Our
competitors may obtain regulatory approval for their products more rapidly than we may obtain approval for ours, which could result in
competitors establishing a strong market position before we are able to enter the market.

Our  portfolio  includes  our  commercial  products  Amtagvi™  and  Proleukin®  as  well  as  our  pipeline  of  investigational  TIL  cell
therapies. Currently, there are numerous companies that are developing various alternate treatments for advanced melanoma, NSCLC and
other solid tumor cancers that we are seeking to address, including patients that have progressed after prior treatment with checkpoint
inhibitors and chemotherapy. Accordingly, our TIL cell therapies face significant competition from multiple companies. Even with the
regulatory approval for Amtagvi™, the availability and price of our competitors’ products could limit the demand and the price we are
able to charge for our therapies.

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

Our  commercial  success  may  depend  in  part  on  our  ability  to  obtain  and  maintain  patent  and  other  proprietary  protection  for
commercially  important  technology,  inventions  and  know-how  related  to  our  business;  defend  and  enforce  our  patents;  preserve  the
confidentiality of our trade secrets; and operate without infringing the valid enforceable patents and proprietary rights of third parties.

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Our ability to stop third parties from making, using, selling, offering to sell or importing our products may depend on the extent to which
we have rights under valid and enforceable patents or trade secrets that cover these activities. With respect to both licensed and company-
owned intellectual property, we cannot be sure that patents will be granted 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 may rely, in some circumstances, on trade secrets to protect our technology. However, trade secrets can be difficult to protect.

We  seek  to  protect  our  proprietary  technology  and  processes,  in  part,  by  entering  into  confidentiality  agreements  with  our
employees,  consultants,  scientific  advisors  and  contractors.  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. To the extent that our consultants, contractors or collaborators use intellectual property owned by others in
their work for us, disputes may arise as to the rights in related or resulting know-how and inventions.

Intellectual Property

We aim to lead in the field of T cell-based immunotherapy by building and augmenting the patent rights for our proprietary TIL
technology platform, which we have developed internally and licensed from third parties. Intellectual property is of importance in our
field  and  in  biotechnology  generally.  We  seek  to  protect  and  enhance  proprietary  technology,  inventions,  and  improvements  that  are
commercially important to the development of our business by seeking, maintaining, and defending patent rights. We also plan to rely on
regulatory protection afforded through Orphan Drug Designation, or ODD, available regulatory exclusivities and patent term extensions
where available. To achieve this objective, our strategic focus has been to develop our own intellectual property, while also identifying
and licensing patents from third parties that provide protection and serve as an optimal platform to enhance our intellectual property and
technology base. We expect to further develop our patent portfolio as a strategic focus in 2024.

We  have  established  a  leading  intellectual  property  portfolio  developed  internally  and  licensed  from  third  parties.  We  currently
own  more  than  60  U.S.  patents  related  to  TIL  cell  therapy,  including  patents  directed  to  compositions  and  methods  of  treatment  in  a
broad range of cancers, such as U.S. Patent Nos. 10,130,659; 10,166,257; 10,272,113; 10,363,273; 10,398,734; 10,420,799; 10,463,697;
10,517,894; 10,537,595; 10,639,330; 10,646,517; 10,653,723; 10,695,372; 10,894,063; 10,905,718; 10,918,666; 10,925,900; 10,933,094;
10,946,044; 10,946,045; 10,953,046; 10,953,047; 11,007,225; 11,007,226; 11,013,770; 11,026,974; 11,040,070; 11,052,115; 11,052,116;
11,058,728; 11,083,752; 11,123,371; 11,141,438; 11,168,303; 11,168,304; 11,179,419; 11,202,803; 11,202,804; 11,220,670; 11,241,456;
11,254,913; 11,266,694; 11,273,180; 11,273,181; 11,291,687; 11,304,979; 11,304,980; 11,311,578; 11,337,998; 11,344,579; 11,344,580;
11,344,581; 11,351,197; 11,351,198; 11,351,199; 11,364,266; 11,369,637; 11,384,337; 11,433,097; 11,517,592; 11,529,372 ; 11,541,077;
11,713,446; 11,819,517; and 11,866,688. More than 40 of these patents are related to our Gen 2 TIL manufacturing processes and have
terms that we anticipate will extend to January 2038, not including any patent term extensions or adjustments that may be available. Our
owned  and  licensed  intellectual  property  portfolio  also  includes  patents  and  patent  applications  relating  to  TIL,  marrow  infiltrating
lymphocytes,  or  MIL,  and  peripheral  blood  lymphocyte,  or  PBL,  therapies;  frozen  tumor-based  TIL  technologies;  remnant  TIL  and
digest TIL compositions, methods and processes; methods of manufacturing TIL, MIL, and PBL therapies; the use of costimulatory and
T  cell  modulating  molecules  in  TIL  cell  therapy  and  manufacturing;  stable  and  transient  genetically-modified  TIL  cell  therapies,
including genetic knockouts of immune checkpoints; cytokine-tethered TIL cell therapies; methods of using ICIs in combination with
TIL cell therapies; TIL selection technologies; and methods of treating patient subpopulations.

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Government Regulations

The FDA and other regulatory authorities at federal, state, and local levels, as well as in foreign countries, extensively regulate,
among  other  things,  the  research,  development,  testing,  manufacture,  quality  control,  import,  export,  safety,  effectiveness,  labeling,
packaging,  storage,  distribution,  record  keeping,  approval,  advertising,  promotion,  marketing,  post-approval  monitoring,  and  post-
approval reporting of biologics such as those we are developing. We, along with our third-party contractors, will be required to navigate
the  various  preclinical,  clinical  and  commercial  approval  and  post-approval  requirements  of  the  governing  regulatory  agencies  of  the
countries  in  which  we  wish  to  conduct  studies  or  seek  approval  or  licensure  of  our  product  candidates.  The  process  of  obtaining
regulatory approvals and the subsequent compliance with appropriate federal, state, local, and foreign statutes and regulations require the
expenditure of substantial time and financial resources.

Biologic  products  are  regulated  by  the  FDA  under  a  combination  of  the  federal  Food,  Drug,  and  Cosmetic  Act,  or  FDCA,  and
Public  Health  Services  Act,  or  PHSA,  and  the  FDA’s  implementing  regulations.  Failure  to  comply  with  regulatory  requirements  may
result  in  significant  regulatory  actions.  Such  actions  may  include  refusal  to  approve  pending  applications,  license  suspension  or
revocation,  withdrawal  of  an  approval,  imposition  of  a  clinical  hold  or  termination  of  clinical  trials,  warning  letters,  untitled  letters,
modification of promotional materials or labeling, provision of corrective information, imposition of post-market requirements, including
the need for additional testing, imposition of distribution or other restrictions under a Risk Evaluation and Mitigation Strategy, or REMS,
product  recalls,  product  seizures  or  detentions,  refusal  to  allow  imports  or  exports,  total  or  partial  suspension  of  production  or
distribution, FDA debarment, injunctions, fines, consent decrees, corporate integrity agreements, debarment from receiving government
contracts  and  new  orders  under  existing  contracts,  exclusion  from  participation  in  federal  and  state  healthcare  programs,  restitution,
disgorgement, or civil or criminal penalties, including fines and imprisonment, and adverse publicity, among other adverse consequences.

The  process  required  by  the  FDA  before  biologic  product  candidates  may  be  marketed  in  the  U.S.  generally  involves  the

following:

● completion  of  preclinical  laboratory  tests  and  animal  studies  performed  in  accordance  with  the  FDA’s  current  Good

Laboratory Practices, or cGLP, regulation, as well as manufacturing development and formulation studies;

● submission to the FDA of an investigational new drug application, or IND, which must become effective before clinical trials

may begin and must be updated annually or when significant changes are made;

● approval by an independent Institutional Review Board, or IRB, or ethics committee at each clinical site or centrally, before

the clinical trial is begun;

● performance  of  adequate  and  well-controlled  human  clinical  trials,  in  accordance  with  the  FDA’s  current  Good  Clinical
Practices, or cGCP, regulation, to establish the safety, purity, and potency of the proposed biologic product candidate for its
intended purpose;

● preparation of and submission to the FDA of a BLA, after completion of pivotal clinical trial(s);
● satisfactory completion of an FDA Advisory Committee review, if applicable;
● a determination by the FDA within 60 days of its receipt of a BLA to file the application for review;
● satisfactory completion of an FDA pre-approval inspection of the manufacturing facility or facilities at which the proposed
product is produced to assess compliance with cGMP, and to assure that the facilities, methods and controls are adequate to
preserve the biological product’s continued safety, purity and potency, and of selected clinical sites to assess compliance with
cGCPs; and

● FDA review and approval of the BLA to permit commercial marketing of the product for particular indications for use in the

U.S., which must be updated periodically when changes are made.

The  testing  and  approval  process  requires  substantial  time,  effort  and  financial  resources,  and  we  cannot  be  certain  that  any
approvals  for  our  product  candidates  will  be  granted  on  a  timely  basis,  if  at  all.  Prior  to  beginning  the  first  clinical  trial  with  a  new
product  candidate,  we  must  submit  an  IND  to  the  FDA.  An  IND  is  a  request  for  authorization  from  the  FDA  to  administer  an
investigational  new  drug  product  to  humans.  The  central  focus  of  an  IND  submission  is  on  the  general  investigational  plan  and  the
protocol(s) for clinical trials. The IND also includes results of animal and in vitro studies assessing the toxicology, pharmacokinetics,
pharmacology,  and  pharmacodynamic  characteristics  of  the  product;  chemistry,  manufacturing,  and  controls  information;  and  any
available human data or literature to support the use of the investigational product. An IND must become effective before human clinical
trials may begin. The IND automatically becomes effective 30 days after receipt by the FDA, unless the FDA, within that initial 30-day
time period, raises concerns or questions about the proposed clinical trial. In such a case, the IND may be placed on clinical hold and the
IND sponsor, and the FDA must resolve any outstanding concerns or questions before the clinical trial can begin. Clinical holds also

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may be imposed by the FDA at any time before or during clinical trials due to safety concerns or non-compliance. Submission of an IND
therefore may or may not result in FDA authorization to begin a clinical trial.

Human immunotherapy products are a new category of therapeutics. Because this is a relatively new and expanding area of novel
therapeutic  interventions,  there  can  be  no  assurance  as  to  the  length  of  the  clinical  trial  period,  the  number  of  patients  the  FDA  will
require to be enrolled in the clinical trials in order to establish the safety, efficacy, purity and potency of immunotherapy products, or that
the data generated in these clinical trials will be acceptable to the FDA to support marketing approval.

Clinical  trials  involve  the  administration  of  the  investigational  product  to  human  subjects  under  the  supervision  of  qualified
investigators in accordance with cGCPs, which include the requirement that all research subjects provide their informed consent for their
participation in any clinical trial. Clinical trials are conducted under protocols detailing, among other things, the objectives of the clinical
trial,  the  parameters  to  be  used  in  monitoring  safety  and  the  effectiveness  criteria  to  be  evaluated,  and  a  statistical  analysis  plan.  A
separate submission to the existing IND must be made for each successive clinical trial conducted during product development and for
any  subsequent  protocol  amendments.  Investigators  must  also  provide  certain  information  to  the  clinical  trial  sponsors  to  allow  the
sponsors to make certain financial disclosures to the FDA.

Furthermore, an independent IRB for each site proposing to conduct the clinical trial or centrally must review and approve the
plan for any clinical trial, its informed consent documentation and processes, and any subject communications, before the clinical trial
begins  at  that  site,  and  upon  amendment  of  the  clinical  trial  protocol,  and  must  monitor  the  clinical  trial  until  completed.  An  IRB
considers,  among  other  things,  whether  the  risks  to  individuals  participating  in  the  clinical  trials  are  minimized  and  are  reasonable  in
relation to anticipated benefits and whether the planned human subject protections are adequate. Informed consent must be received from
each clinical trial subject prior to participation in a clinical trial. Progress reports detailing the results of the clinical trials must also be
submitted at least annually to the FDA and the IRB and more frequently if serious adverse events or other significant safety information
is found.

Regulatory authorities, the IRB, or the sponsor may suspend a clinical trial at any time on various grounds, including a finding
that  the  subjects  are  being  exposed  to  an  unacceptable  health  risk,  that  the  clinical  trial  is  not  being  conducted  in  accordance  with
regulatory or IRB requirements, or that the clinical trial is unlikely to meet its stated objectives. Sponsors may also discontinue studies or
development programs for many reasons, including changing business objectives. Some studies also include oversight by an independent
group of qualified experts organized by the clinical trial sponsor, known as a data safety monitoring board, or DSMB, which provides
recommendations and assessments for whether or not a clinical trial should move forward at designated check points based on access to
certain data from the clinical trial. Following a review by a DSMB, the clinical trial may be halted if there is an unacceptable safety risk
for subjects or on other grounds, such as failure to demonstrate efficacy. There are also requirements governing the reporting of ongoing
clinical  trials  and  clinical  trial  results  to  public  registries.  For  instance,  we  are  required  to  register  certain  clinical  trials  and  post  the
results of certain completed clinical trials on a government-sponsored database, ClinicalTrials.gov, within specified timeframes, and also
to certify to FDA our compliance with these requirements when we make FDA submissions. Failure to make required ClinicalTrials.gov
submissions,  submitting  false  or  misleading  information  to  ClinicalTrials.gov,  or  making  false  certifications  to  FDA  could  result  in
enforcement actions, including civil money penalties and adverse publicity.

For purposes of BLA approval, human clinical trials are typically conducted in three sequential phases that may overlap. Although
these  are  the  typical  phases  for  progression,  and  characteristics  of  the  phases  of  a  clinical  development  program,  certain  expedited
programs allow for variations that could support a marketing application based on surrogate endpoints, intermediate clinical endpoints, or
single-arm as opposed to comparative or placebo-controlled studies.

● Phase 1 - The investigational product is initially introduced into healthy human subjects or patients with the target disease or
condition.  These  studies  are  designed  to  test  the  safety,  dosage  tolerance,  absorption,  metabolism  and  distribution  of  the
investigational product in humans, the side effects associated with increasing doses, and, if possible, to gain early evidence on
effectiveness.

● Phase 2 - The investigational product is administered to a limited patient population with a specified disease or condition to
evaluate  the  preliminary  efficacy,  optimal  dosages  and  dosing  schedule  and  to  identify  possible  adverse  side  effects  and
safety  risks.  Multiple  Phase  2  clinical  trials  may  be  conducted  to  obtain  information  prior  to  beginning  larger  and  more
expensive Phase 3 clinical trials.

● Phase  3  -  The  investigational  product  is  administered  to  an  expanded  patient  population  in  adequate  and  well-controlled
studies to further evaluate dosage, to provide statistically significant evidence of clinical efficacy and to further test for safety,
generally at multiple geographically dispersed clinical trial sites. These clinical trials are intended to establish the overall

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risk/benefit relationship of the investigational product and to provide an adequate basis for product approval. Typically, two
Phase 3 studies are required by the FDA for product approval.

● Phase 4 - In some cases, the FDA may require, or companies may voluntarily pursue, additional clinical trials after a product
is approved to gain more information about the product, known as post-approval requirements or commitments, respectively.
These so-called Phase 4 studies may be made a condition to approval of the BLA.

Additional types of data may also help to support a BLA, such as real-world evidence and patient experience data. Phase 1, Phase
2 and Phase 3, and Phase 4 testing, if applicable, may not be completed successfully within a specified period, if at all, and there can be
no assurance that the data collected will support FDA approval or licensure of the product. Concurrent with clinical trials, companies
may complete additional animal studies and develop additional information about the biological characteristics of the product candidate
and  must  finalize  a  process  for  manufacturing  the  product  in  commercial  quantities  in  accordance  with  cGMP  requirements.  The
manufacturing process must be capable of consistently producing quality batches of the product candidate and, among other things, must
develop methods for testing the identity, strength, quality and purity of the final product, or for biologics, the safety, purity and potency.
Additionally, appropriate packaging must be selected and tested, and stability studies must be conducted to demonstrate that the product
candidate does not undergo unacceptable deterioration over its shelf life and manufacturing processes must be validated.

The  manufacture  of  investigational  biologics  for  the  conduct  of  human  clinical  trials  is  subject  to  cGMP  requirements.
Investigational biologics and active ingredients imported into the U.S. are also subject to regulation by the FDA relating to their labeling
and distribution. Further, the export of investigational products outside of the U.S. is subject to regulatory requirements of the importing
country as well as U.S. export requirements under the FDCA. Additional U.S. and foreign laws and regulations may also be applicable to
the handling, import, export, and transportation of biological materials, including tissue samples.

During  the  development  of  a  new  therapeutic,  a  sponsor  may  be  able  to  request  a  Special  Protocol  Assessment,  or  SPA,  the
purpose  of  which  is  to  reach  an  agreement  with  the  FDA  on  the  Phase  3  clinical  trial  protocol  design  and  analysis  that  will  form  the
primary basis of product approval and an efficacy claim, as well as preclinical carcinogenicity trials and stability studies. An SPA may
only  be  modified  with  the  agreement  of  the  FDA  and  the  clinical  trial  sponsor,  or  if  the  director  of  the  FDA  reviewing  division
determines that a substantial scientific issue essential to determining the safety or efficacy of the product was identified after the testing
began. An SPA is intended to provide assurance that, in the case of clinical trials, if the agreed upon clinical trial protocol is followed, the
clinical trial endpoints are achieved, and there is a favorable risk-benefit profile, the data may serve as the primary basis for an efficacy
claim in support of a BLA. However, SPA agreements are not a guarantee of approval of a product candidate or any permissible claims
about  the  product  candidate.  In  particular,  SPAs  are  not  binding  on  the  FDA  if,  among  other  reasons,  previously  unrecognized  public
health concerns arise during the performance of the clinical trial, other new scientific concerns regarding the product candidate’s safety
or efficacy arise, or if the sponsoring company fails to comply with the agreed upon clinical trial protocol.

In  addition,  under  the  Pediatric  Research  Equity  Act,  or  PREA,  a  BLA  or  supplement  to  a  BLA  for  a  new  active  ingredient,
indication,  dosage  form,  dosage  regimen,  or  route  of  administration,  must  contain  data  that  are  adequate  to  assess  the  safety  and
effectiveness of the product for the claimed indications in all relevant pediatric subpopulations, and to support dosing and administration
for each pediatric subpopulation for which the product is safe and effective. Also, under the FDA Reauthorization Act of 2017, beginning
in  2020,  sponsors  submitting  applications  for  product  candidates  intended  for  the  treatment  of  adult  cancer  which  are  directed  at
molecular targets that the FDA determines to be substantially relevant to the growth or progression of pediatric cancer must submit, with
the application, reports from molecularly targeted pediatric cancer investigations designed to yield clinically meaningful pediatric clinical
trial data, using appropriate formulations, to inform potential pediatric labeling. The FDA may, on its own initiative or at the request of
the applicant, grant deferrals for submission of some or all pediatric data until after approval of the product for use in adults, or full or
partial waivers from the pediatric data requirements. Orphan products are also exempt from PREA requirements.

The FDA also may require submission of REMS, to ensure that the benefits of the biologic outweigh the risks. The REMS plan
could  include  medication  guides,  physician  communication  plans,  and  elements  to  assure  safe  use,  such  as  restricted  distribution
methods,  patient  registries,  or  other  risk  minimization  tools.  An  assessment  of  the  REMS  must  also  be  conducted  at  set  intervals.
Following product approval, a REMS may also be required by the FDA if new safety information is discovered, and the FDA determines
that a REMS is necessary to ensure that the benefits of the biologic outweigh the risks.

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BLA Approval and Post-Approval Requirements

BLA Submission and Review by the FDA

Assuming successful completion of all required testing in accordance with all applicable regulatory requirements, the results of
product development, nonclinical studies and clinical trials are submitted to the FDA as part of a BLA requesting approval to market the
product  for  one  or  more  indications.  The  BLA  must  include  all  relevant  data  available  from  pertinent  preclinical  and  clinical  studies,
including  negative  or  ambiguous  results  as  well  as  positive  findings,  together  with  detailed  information  relating  to  the  product’s
chemistry, manufacturing, controls, and proposed labeling, among other things. Data can come from company-sponsored clinical studies
intended to test the safety and effectiveness of a use of the product, or from a number of alternative sources, including studies initiated by
investigators.  The  submission  of  a  BLA  requires  payment  of  a  substantial  user  fee  to  the  FDA,  under  PDUFA,  and  the  sponsor  of  an
approved BLA is also subject to annual program fees. These fees are typically increased annually. A waiver of user fees may be obtained
under certain limited circumstances.

Once a BLA has been submitted, the FDA has sixty days to determine whether it will accept the application for filing. The FDA
accepts applications for filing if it determines that the application is substantially complete to permit a substantive review. The FDA may
request additional information rather than accept a BLA for filing. In this event, the application must be resubmitted with the additional
information. The resubmitted application is also 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.

The  FDA’s  goal  is  to  review  the  application  within  ten  months  after  it  accepts  the  application  for  filing,  or,  if  the  application
relates  to  a  serious  or  life-threatening  indication  and,  if  approved,  the  product  would  provide  a  significant  improvement  in  safety  and
efficacy, six months after the FDA accepts the application for filing, which is referred to as Priority Review. The review process is often
significantly extended if the FDA requests additional information or clarification. The FDA reviews a BLA to determine, among other
things, whether a product is safe, pure and potent and the facility in which it is manufactured, processed, packed, or held meets standards
designed to assure the product’s continued safety, purity and potency. There are numerous FDA personnel assigned to review different
aspects of a BLA, and uncertainties can be presented by their ability to exercise judgment and discretion during the review process. The
development and provision of additional data and information requested by FDA during review of a BLA may be time consuming and
expensive.

The  FDA  may  convene  an  advisory  committee  to  provide  clinical  insight  on  application  review  questions.  Before  approving  a
novel biologic, the FDA must either refer that biologic to an external advisory committee or provide in an action letter, a summary of the
reasons  why  the  FDA  did  not  refer  the  product  candidate  to  an  advisory  committee.  An  advisory  committee  is  typically  a  panel  that
includes  clinicians  and  other  experts,  which  review,  evaluate,  and  make  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.

Before approving a BLA, the FDA will typically inspect the facility or facilities where the product is manufactured. The FDA will
not  approve  an  application  unless  it  determines  that  the  manufacturing  processes  and  facilities  are  in  compliance  with  cGMP
requirements and adequate to assure consistent commercial production of the product within required specifications. Additionally, before
approving a BLA, the FDA will typically inspect one or more clinical sites to ensure compliance with cGCP.

If the FDA determines that the application, manufacturing process or manufacturing facilities are not acceptable, it will outline the
deficiencies  in  the  submission  and  often  will  request  additional  testing,  clinical  trials,  application  modifications,  or  information  in  a
complete response letter, or CRL. A CRL indicates that the review cycle for the application is complete, and that the application is not
ready for approval. If a CRL is issued, the applicant may either: resubmit the BLA, addressing all the deficiencies identified in the letter;
withdraw  the  application;  or  request  an  opportunity  for  a  hearing.  Notwithstanding  the  submission  of  any  requested  additional
information, the FDA ultimately may decide that the application does not satisfy the regulatory criteria for approval. Data obtained from
clinical trials are not always conclusive and the FDA may interpret data differently than an applicant interprets the same data.

If  the  FDA  finds  that  a  BLA  is  approvable,  the  FDA  may  issue  an  approval  letter.  An  approval  letter  authorizes  commercial
marketing of the product with specific prescribing information for specific indications. However, even if the FDA approves a product, it
may  limit  the  approved  indications  for  use  of  the  product,  require  that  contraindications,  warnings,  or  precautions  be  included  in  the
product labeling, including a boxed warning, require that post-approval studies, including Phase 4 clinical trials, be conducted to further
assess a product’s safety and efficacy after approval, require testing and surveillance programs to monitor the product after

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commercialization, or impose other conditions, including distribution restrictions or other risk management mechanisms under a REMS
which can materially affect the potential market and profitability of the product. The FDA may also not approve label statements that are
necessary for successful commercialization and marketing.

If  compliance  with  the  pre-and  post-marketing  regulatory  standards  are  not  maintained  or  if  problems  occur  after  the  product
reaches  the  marketplace,  the  FDA  may  also  withdraw  the  product  approval.  Further,  should  new  safety  information  arise,  additional
testing, product labeling, or FDA notification may be required.

A sponsor may seek approval of its product candidate under programs designed to accelerate the FDA’s review and approval of
new drugs and biological products that meet certain criteria. Specifically, new drugs and biological 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. For a Fast Track designation, the FDA may consider sections of the BLA for review on a rolling basis before the
complete application is submitted if relevant criteria are met. Fast Track-designated products are also eligible for more frequent FDA
interactions. A Fast Track-designated product candidate may also qualify for Priority Review, under which the FDA sets the target date
for  FDA  action  on  the  BLA  at  six  months  after  the  FDA  accepts  the  application  for  filing.  Priority  Review  is  granted  when  there  is
evidence  that  the  proposed  product  would  be  a  significant  improvement  in  the  safety  or  effectiveness  of  the  treatment,  diagnosis,  or
prevention of a serious condition. If criteria are not met for Priority Review, the application is subject to the standard FDA review period
of  10  months  after  the  FDA  accepts  the  application  for  filing.  Priority  Review  designation  does  not  change  the  scientific/medical
standard for approval or the quality of evidence necessary to support approval.

Under  the  Accelerated  Approval  Program,  the  FDA  may  approve  a  BLA  on  the  basis  of  either  a  surrogate  endpoint  that  is
reasonably likely to predict clinical benefit, or on a clinical endpoint that can be measured earlier than irreversible morbidity or mortality,
that  is  reasonably  likely  to  predict  an  effect  on  irreversible  morbidity  or  mortality  or  other  clinical  benefit,  taking  into  account  the
severity, rarity, or prevalence of the condition and the availability or lack of alternative treatments. To qualify for Accelerated Approval,
the product must be intended to treat a serious condition and must generally provide a meaningful advantage over available therapies.
Post-marketing studies or completion of ongoing studies after marketing approval are required to verify the biologic’s clinical benefit in
relationship to the surrogate endpoint or ultimate outcome in relationship to the clinical benefit. If this clinical trial is not conducted, if it
fails to verify the benefit, if other evidence demonstrates that the product is not safe, pure or potent, or if the applicant disseminates false
or  misleading  promotional  material,  the  FDA  may  withdraw  approval  of  the  application  on  an  expedited  basis.  Sponsors  of  products
under the Accelerated Approval Pathway must further submit promotional materials to the FDA before dissemination.

In addition, the Food and Drug Administration Safety and Innovation Act, or FDASIA, which was enacted and signed into law in
2012, established the new Breakthrough Therapy Designation, or BTD. A sponsor may seek FDA designation of its product candidate as
a Breakthrough Therapy if the product candidate is intended, alone or in combination with one or more other drugs or biologics, to treat a
serious or life-threatening disease or condition and preliminary clinical evidence indicates that the therapy may demonstrate substantial
improvement over existing therapies on one or more clinically significant endpoints, such as substantial treatment effects observed early
in  clinical  development.  Sponsors  may  request  the  FDA  to  designate  a  Breakthrough  Therapy  at  the  time  of  or  any  time  after  the
submission of an IND, but ideally before an end-of-Phase 2 meeting with the FDA. If the FDA designates a Breakthrough Therapy, it
may take actions appropriate to expedite the development and review of the application, which may include holding meetings with the
sponsor and the review team throughout the development of the therapy; providing timely advice to, and interactive communication with,
the sponsor regarding the development of the drug to ensure that the development program to gather the nonclinical and clinical data
necessary  for  approval  is  as  efficient  as  practicable;  involving  senior  managers  and  experienced  review  staff,  as  appropriate,  in  a
collaborative,  cross-disciplinary  review;  assigning  a  cross-disciplinary  project  lead  for  the  FDA  review  team  to  facilitate  an  efficient
review  of  the  development  program  and  to  serve  as  a  scientific  liaison  between  the  review  team  and  the  sponsor;  and  considering
alternative clinical trial designs when scientifically appropriate, which may result in smaller clinical trials or more efficient clinical trials
that require less time to complete and may minimize the number of patients exposed to a potentially less efficacious treatment. BTD also
allows the sponsor to file sections of the BLA for review on a rolling basis.

Through the 21st Century Cures Act, or Cures Act, Congress also established another expedited program, called a Regenerative
Medicine Advanced Therapy, or RMAT, designation. The Cures Act directs the FDA to facilitate an efficient development program for
and expedite review of RMATs. To qualify for this program, the product must be a cell therapy, therapeutic tissue engineering product,
human cell and tissue product, or a combination of such products, and not a product solely regulated as a human cell and tissue product.
The product must be intended to treat, modify, reverse, or cure a serious or life-threatening disease or condition, and preliminary clinical
evidence  must  indicate  that  the  product  has  the  potential  to  address  an  unmet  need  for  such  disease  or  condition.  Advantages  of  the
RMAT designation include all the benefits of the Fast Track and breakthrough therapy designation programs, including early interactions

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with  the  FDA.  These  early  interactions  may  be  used  to  discuss  potential  surrogate  or  intermediate  endpoints  to  support  accelerated
approval.

Post-Approval Requirements

Any  products  for  which  we  receive  FDA  approvals  are  subject  to  continuing  regulation  by  the  FDA,  including,  among  other
things, record-keeping requirements, reporting of adverse experiences with the product and deviations, annual reporting and monitoring
and providing the FDA with updated safety and efficacy information, product sampling and distribution requirements, certain electronic
records and signature requirements, fulfilling post-marketing clinical trial and REMS commitments, and complying with FDA promotion
and advertising requirements, which include, among other things, standards for direct-to-consumer advertising, restrictions on promoting
products for uses or in patient populations that are not described in the product’s approved uses or otherwise consistent with the FDA-
approved  product  labeling  (known  as  “off-label  use”),  limitations  on  industry-sponsored  scientific  and  educational  activities,  rules
regarding  communication  of  health  care  economic  information  regarding  biopharmaceutical  products  to  payors  and  formularies,  and
requirements for promotional activities involving the internet. Although physicians may prescribe legally available products for off-label
use, if they deem such use to be appropriate in their professional medical judgment, manufacturers may not market or promote such off-
label uses. In the past several years, certain court decisions have impacted FDA’s enforcement activity regarding off-label promotion in
light of First Amendment considerations; however, there are still significant risks in this area, in part due to the potential for False Claims
Act exposure.

In  addition,  quality  control  and  manufacturing  procedures  must  continue  to  conform  to  applicable  manufacturing  requirements
after approval to ensure the long-term stability of the product. cGMP regulations require among other things, quality control and quality
assurance  as  well  as  the  corresponding  maintenance  of  records  and  documentation  and  the  obligation  to  investigate  and  correct  any
deviations from cGMP. Manufacturers and other entities involved in the manufacture and distribution of approved products are required
to register their establishments and list their products with the FDA and certain state agencies and are subject to periodic unannounced
inspections  by  the  FDA  and  certain  state  agencies  for  compliance  with  cGMP  and  other  applicable  laws.  Accordingly,  manufacturers
must continue to expend time, money, and effort in the areas of production and quality control to maintain cGMP compliance. Discovery
of problems with a product after approval may result in restrictions on a product, manufacturer, or holder of an approved BLA, including,
among  other  things,  withdrawal  of  approval,  recall  or  withdrawal  of  the  product  from  the  market.  In  addition,  changes  to  the
manufacturing  process  are  strictly  regulated,  and  depending  on  the  significance  of  the  change,  may  require  prior  FDA  approval  or
notification before being implemented. Other types of changes to the approved product, such as adding new indications and claims to the
product labeling, are also subject to further FDA review and approval.

Commercial products must meet the requirements of the Drug Supply Chain Security Act, or DSCSA, which imposes obligations
on manufacturers of prescription biopharmaceutical products for commercial distribution, regulating the distribution of the products at
the  federal  level,  and  sets  certain  standards  for  federal  or  state  registration  and  compliance  of  entities  in  the  supply  chain,  including
manufacturers and repackagers, wholesale distributors, third-party logistics providers, and dispensers. The DSCSA preempts previously
enacted state laws and the pedigree requirements of the Prescription Drug Marketing Act, or PDMA. Trading partners within the drug
supply chain must now ensure certain product tracing requirements are met that they are doing business with other authorized trading
partners;  and  they  are  required  to  exchange  transaction  information,  transaction  history,  and  transaction  statements.  Product  identifier
information, an aspect of the product tracing scheme, is required. The DSCSA requirements, development of standards, and the system
for product tracing have been and will continue to be phased in over a period of years, with the FDA indicating that it would permit
certain exemptions and exclusions, and exercise enforcement discretion on certain aspects of the law due to the COVID-19 pandemic,
although this situation may continue to evolve. The distribution of product samples continues to be regulated under the PDMA, and some
states also impose regulations on drug sample distribution.

As  previously  mentioned,  the  FDA  may  also  require  Phase  4  testing  and  surveillance  to  monitor  the  effects  of  an  approved
product. Discovery of previously unknown problems with a product or the failure to comply with applicable FDA requirements can have
negative  consequences,  including  adverse  publicity,  judicial  or  administrative  enforcement,  warning  letters  from  the  FDA,  mandated
corrective  advertising  or  communications  with  doctors,  and  civil  or  criminal  penalties,  among  others.  Newly  discovered  or  developed
safety  or  effectiveness  data  may  require  changes  to  a  product’s  approved  labeling,  including  the  addition  of  new  warnings  and
contraindications,  and  may  require  the  implementation  of  other  risk  management  measures.  Also,  new  government  requirements,
including  those  resulting  from  new  legislation,  may  be  established,  or  the  FDA’s  policies  may  change,  which  could  delay  or  prevent
regulatory approval of our products under development.

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Regulatory Designations

The FDA has granted ODD for lifileucel in the U.S. to treat malignant melanoma stages IIB-IV and for the treatment of cervical
cancer with a tumor size of greater than 2 cm in diameter; Fast Track and RMAT designations for lifileucel to treat advanced metastatic
melanoma; Fast Track and BTD for lifileucel to treat metastatic cervical cancer; and Fast Track designation for lifileucel in combination
with pembrolizumab for the treatment of ICI naïve metastatic melanoma.

Orphan Drug Designations

During 2015, we received ODD for lifileucel in the U.S. to treat malignant melanoma stages IIB-IV, and in 2018, we received an
ODD for lifileucel for the treatment of cervical cancer with a tumor size of greater than 2 cm in diameter. If approved, an ODD provides
seven years of market exclusivity in the U.S., which means that the FDA may not approve any other applications, including a full BLA,
to market the same biologic, as sameness is defined in the FDA’s regulations, for the same indication for seven years, subject to certain
limited exceptions. However, an ODD does not convey any advantage in, or shorten the duration of, the regulatory review or approval
process.  The  benefits  and  limitations  of  ODD  are  described  in  more  detail  under  the  Government  Regulations  section  in  this  Annual
Report on Form 10-K.

Fast Track Designations

In  August  2017,  we  announced  that  the  FDA  had  granted  Fast  Track  designation  for  lifileucel  for  the  treatment  of  advanced
metastatic melanoma. In February 2019, we announced that the FDA had granted Fast Track designation for lifileucel in the treatment of
metastatic cervical cancer. Additionally, in November 2021, we announced that the FDA granted Fast Track designation for lifileucel in
combination  with  pembrolizumab  for  the  treatment  of  ICI-naïve  metastatic  melanoma.  The  FDA’s  Fast  Track  process  is  designed  to
facilitate  the  development  and  expedite  the  review  of  drugs  that  treat  serious  conditions  and  fill  an  unmet  medical  need.  Fast  Track
designation  allows  more  frequent  meetings  and  communications  with  the  FDA  to  discuss  the  drug’s  development  plans  and  review
process. The Fast Track designation also allows for the possibility for rolling review of a BLA by FDA, where the FDA may consider
beginning  review  portions  of  a  marketing  application  before  the  full  submission  is  complete,  and  also  potential  eligibility  if  certain
criteria are met for accelerated approval.

Regenerative Medicine Advanced Therapy Designation

In  October  2018,  we  announced  that  the  FDA  had  granted  RMAT  designation  for  lifileucel  for  the  treatment  of  patients  with
metastatic  melanoma.  The  RMAT  designation  is  based  on  data  provided  to  the  FDA  from  our  C-144-01  trial.  RMAT  designation  is
granted for regenerative medicine drugs and allows for increased access to FDA during development. Under this designation, surrogate
endpoints can be used to receive approval for a product, accelerated approval may be granted, and a rolling review of a BLA may be
permitted by FDA.

Breakthrough Therapy Designation

In May 2019, we announced that the FDA had granted BTD for lifileucel for the treatment of patients with metastatic cervical
cancer. The BTD was granted based on data provided to the FDA from our C-145-04 clinical trial. Under a BTD, the FDA may take
actions that help expedite the development and review of the application for a product candidate, including seeking to provide timely
advice  and  interactive  communications  to  the  sponsor  with  intensive  guidance  during  development,  to  help  the  sponsor  design  and
conduct a more efficient development program. Product candidates with BTD may be suitable for alternative clinical trial designs when
scientifically appropriate, which may result in smaller clinical trials or more efficient clinical trials that require less time to complete.
BTD also allows the sponsor to submit portions of the BLA on an ongoing basis for rolling review. In addition, BTD status allows for the
potential to request priority review of our BLA at the time of BLA submission if supported by clinical data. The clinical evidence needed
to support breakthrough designation is preliminary, and the FDA has authority to rescind a BTD if a product candidate no longer meets
the qualifying criteria.

Orphan Drugs

Under the Orphan Drug Act, the FDA may grant ODD to a drug or biologic intended to treat a rare disease or condition, defined as
a  disease  or  condition  with  a  patient  population  of  fewer  than  200,000  individuals  in  the  U.S.,  or  a  patient  population  greater  than
200,000 individuals in the U.S. and when there is no reasonable expectation that the cost of developing and making available the drug

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or biologic in the U.S. will be recovered from sales in the U.S. for that drug or biologic. Additionally, sponsors must present a plausible
hypothesis  for  clinical  superiority  to  obtain  ODD  if  there  is  a  product  already  approved  by  the  FDA  that  is  intended  for  the  same
indication  and  that  is  considered  by  the  FDA  to  be  the  same  product  as  the  already  approved  product.  This  hypothesis  for  clinical
superiority must be demonstrated to obtain orphan exclusivity. ODD must be requested before submitting a BLA. After the FDA grants
ODD, the generic identity of the therapeutic agent and its potential orphan use are disclosed publicly by the FDA.

If a product that has ODD subsequently receives the first FDA approval for a particular active ingredient for the disease for which
it has such designation, the product is entitled to orphan product exclusivity, a seven-year period of marketing exclusivity, which means
that the FDA may not approve any other applications, including a full BLA, to market the same biologic, as sameness is defined in the
FDA’s regulations, for the same indication for seven years, except in limited circumstances, such as a showing of clinical superiority to
the product with orphan drug exclusivity or if the FDA finds that the holder of the orphan drug exclusivity has not shown that it can
assure the availability of sufficient quantities of the orphan drug to meet the needs of patients with the disease or condition for which the
drug was designated. Orphan drug exclusivity does not prevent the FDA from approving a different drug or biologic for the same disease
or  condition,  or  the  same  drug  or  biologic  for  a  different  disease  or  condition.  Among  the  other  benefits  of  ODD  are  tax  credits  for
certain research, opportunities for certain research grant funding, and a waiver of the BLA application fees. The tax credit, however, was
recently limited through Congress’s tax reform efforts. Despite these benefits, the ODD does not convey any advantage in, or shorten the
duration of, the regulatory review or approval process.

A designated orphan drug may not receive orphan drug exclusivity if it is approved for a use that is broader than the indication for
which  it  received  orphan  designation.  In  addition,  orphan  drug  exclusive  marketing  rights  in  the  U.S.  may  be  lost  if  the  FDA  later
determines that the request for designation was materially defective or if the manufacturer is unable to assure sufficient quantities of the
product to meet the needs of patients with the rare disease or condition. The FDA may also approve a product deemed to be the same as
an  approved  orphan  product  for  the  same  orphan  indication,  despite  periods  of  exclusivity,  if  the  new  product  is  demonstrated  to  be
clinically superior to the former product.

We plan to seek ODD for some or all of our other product candidates in specific orphan indications in which there is a medically

plausible basis for the use of such products.

Market and Data Exclusivity and Biosimilars

While under the Biologics Price Competition and Innovation Act of 2009, or BPCIA, the FDA may eventually license products, as
further  described  below,  that  are  biosimilar  to  any  of  our  product  candidates  that  are  approved,  our  products  may  receive  periods  of
regulatory  exclusivity,  separately  from  orphan  drug  exclusivity  for  those  products  with  ODDs,  providing  additional  protection  from
certain forms of competition. For instance, our products may receive 12 years of reference product exclusivity that begins running at the
time of first licensure. During this 12-year time period, the period of marketing exclusivity, the FDA may not make an approval of a
biosimilar  product  effective.  In  addition,  the  FDA  may  not  accept  a  biosimilar  application  until  after  four  years  from  the  date  of  first
licensure, the period of data exclusivity. However, 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 exclusivity period.
The PHSA also includes provisions governing patent litigation over patents that are directed to the reference products. The biosimilar
product  sponsor  and  reference  product  sponsor  may,  but  are  not  required  to,  exchange  certain  patent  and  product  information  for  the
purpose of negotiating and determining the scope of patent litigation, including the patents to be asserted and challenged. 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 under certain circumstances.

The  BPCIA  created  an  abbreviated  approval  pathway  for  biological  products  shown  to  be  highly  similar  to  or  interchangeable
with an FDA-licensed reference biological product. Accordingly, if we receive FDA licensure, we may face competition from biosimilar
products.  Biosimilarity  sufficient  to  reference  a  prior  FDA-approved  product  requires  a  high  similarity  to  the  reference  product
notwithstanding  minor  differences  in  clinically  inactive  components,  and  no  clinically  meaningful  differences  between  the  biological
product and the reference product in terms of safety, purity, and potency. Biosimilarity must be shown through analytical studies, animal
studies,  and  at  least  one  clinical  trial,  absent  a  waiver  by  the  FDA.  There  must  be  no  difference  between  the  reference  product  and  a
biosimilar  in  conditions  of  use,  route  of  administration,  dosage  form,  and  strength.  Further,  a  biosimilar  product  may  be  deemed
interchangeable with a prior approved product if it meets the higher hurdle of demonstrating 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

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switched after one has been previously administered without increasing safety risks or risks of diminished efficacy relative to exclusive
use of the reference biologic.

Pediatric Exclusivity and Patent Term Extension

Pediatric exclusivity is another type of non-patent marketing exclusivity in the U.S. and, if granted, provides for the attachment of
an additional six months of marketing protection to the term of any existing regulatory exclusivity. Under the Best Pharmaceuticals for
Children Act, a six-month exclusivity may be granted if a sponsor submits pediatric data that fairly responds to a written request from the
FDA for such data. The FDA may issue such a written request on its own initiative or at the request of the sponsor. 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, whatever
regulatory  periods  of  exclusivity  that  already  cover  the  product  are  extended  by  six  months.  Pediatric  exclusivity  is  thus  an  “add-on”
exclusivity and is unique in this regard among the various regulatory exclusivities provided by FDA. The FDA can also require pediatric
studies of a drug submitted in a new drug application if the FDA determines that the product is likely to be used in a substantial number
of  pediatric  patients,  or  if  the  product  would  provide  a  meaningful  benefit  in  the  pediatric  population  over  existing  treatments.  This
requirement may be waived in certain circumstances, for example, where the indication does not occur or is not highly prevent in the
pediatric population.

If approved, biologics may also be eligible for periods of U.S. patent term restoration. If granted, patent term restoration extends
the patent life of a single unexpired patent that has not previously been extended, for a maximum of five years. The total patent life of the
product with the extension also cannot exceed fourteen years from the product’s approval date. Subject to the prior limitations, the period
of  the  extension  is  calculated  by  adding  half  of  the  time  from  the  effective  date  of  an  IND  to  the  initial  submission  of  a  marketing
application, and all the time between the submission of the marketing application and its approval. This period may also be reduced by
any  time  that  the  applicant  did  not  act  with  due  diligence.  Whether  any  of  our  product  candidates  will  be  eligible  for  patent  term
restoration is currently unknown. Even if any of our product candidates are found to be eligible for patent term protection, the applicable
authorities may subsequently determine that we are not eligible for such restoration periods.

Additional Biologic 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 U.S. and between states.

After  a  BLA  is  approved,  the  product  may  also  be  subject  to  official  lot  release  as  a  condition  of  approval.  As  part  of  the
manufacturing  process,  the  manufacturer  is  required  to  perform  certain  tests  on  each  lot  of  the  product  before  it  is  released  for
distribution. If the product is subject to official release by the FDA, the manufacturer submits samples of each lot of product to the FDA,
together  with  a  release  protocol  showing  the  results  of  all  the  manufacturer's  tests  performed  on  the  lot.  The  FDA  may  also  perform
certain confirmatory tests on lots of some products before releasing the lots for distribution by the manufacturer.

In  addition,  the  FDA  conducts  laboratory  research  related  to  the  regulatory  standards  on  the  safety,  purity,  potency,  and
effectiveness of biological products. After approval of biologics, manufacturers must address any safety issues that arise, are subject to
recalls or a halt in manufacturing, and are subject to periodic inspection after approval.

Other Healthcare Laws and Compliance Requirements

Our sales, promotion, medical education and other activities following product approval will be subject to regulation by numerous
regulatory  and  law  enforcement  authorities  in  the  U.S.,  and  in  addition  to  the  FDA,  these  entities  may  include  the  Federal  Trade
Commission, the Department of Justice, the Centers for Medicare & Medicaid Services, other divisions of the Department of Health and
Human  Services  and  state  and  local  governments.  Our  promotional  and  scientific/educational  programs  must  comply  with  the  federal
Anti-Kickback Statute, or AKS, the Foreign Corrupt Practices Act, or FCPA, the False Claims Act, or FCA, the Veterans Health Care
Act, physician payment transparency laws, privacy laws, security laws, and additional state laws similar to the foregoing.

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The federal AKS prohibits, among other things, any person or entity, from knowingly and willfully offering, paying, soliciting or
receiving any remuneration, directly or indirectly, overtly or covertly, in cash or in kind, to induce or in return for purchasing, leasing,
ordering  or  arranging  for  the  purchase,  lease  or  order  of  any  item  or  service  reimbursable  under  Medicare,  Medicaid  or  other  federal
healthcare programs, in whole or in part. The term remuneration has been interpreted broadly to include anything of value. The federal
AKS  has  been  interpreted  broadly  to  apply  to  arrangements  between  pharmaceutical  manufacturers  on  the  one  hand  and  prescribers,
purchasers,  and  formulary  managers  on  the  other.  The  term  "remuneration"  includes  kickbacks,  bribes  or  rebates  and  also  has  been
broadly  interpreted  to  include  anything  of  value,  including,  for  example,  gifts,  discounts,  waivers  of  payment,  ownership  interest  and
providing anything at less than its fair market value. Additionally, the intent standard under the federal AKS provides that a person or
entity need not have actual knowledge of the statute or specific intent to violate it in order to have committed a violation. In addition, a
claim including items or services resulting from a violation of the federal AKS constitutes a false or fraudulent claim for purposes of the
federal civil False Claims Act. There are a number of statutory exceptions and regulatory safe harbors protecting some common activities
from  prosecution  or  other  regulatory  sanctions.  The  exceptions  and  safe  harbors  are  drawn  narrowly  and  practices  that  involve
remuneration that may be alleged to be intended to induce prescribing, purchasing or recommending may be subject to scrutiny if they do
not  qualify  for  an  exception  or  safe  harbor.  Failure  to  meet  all  the  requirements  of  a  particular  applicable  statutory  exception  or
regulatory safe harbor does not make the conduct per se illegal under the AKS. Instead, the legality of the arrangement will be evaluated
on a case-by-case basis based on a cumulative review of all its facts and circumstances. Our practices may not in all cases meet all the
criteria for protection under a statutory exception or regulatory safe harbor. The safe harbors are subject to change through legislative and
regulatory action, and we may decide to adjust our business practices or be subject to heightened scrutiny as a result.

The civil monetary penalties statute imposes penalties against any person or entity who, among other things, is determined to have
presented or caused to be presented a claim for payment, or approval to a federal healthcare program that the person knows or should
know is for an item or service that was not provided as claimed or is false or fraudulent.

The FCA imposes liability on persons who, among other things, knowingly present or cause to be presented false or fraudulent
claims  for  payment  to,  or  approval  by  the  federal  government  knowingly  making  or  using,  or  causing  to  be  made  or  used  a  false
statement or record material to a claim to the federal government, or avoiding, decreasing or concealing an obligation to pay money to
the federal government. A claim includes "any request or demand" for money or property presented directly or indirectly to the federal
government. The civil FCA has been or can be used to assert liability on the basis of kickbacks and other improper referrals, improperly
reported  government  pricing  metrics  such  as  Best  Price  and  Average  Manufacturer  Price,  improper  promotion  of  uses  not  expressly
approved by the FDA in a drug’s label, false statements associated with government grants, and allegations of misrepresentations with
respect to services rendered, as well as claims for payment that are inaccurate or fraudulent, that are for services not provided as claimed,
or  for  services  that  are  not  medically  necessary.  FCA  claims  may  be  based  on  noncompliance  with  regulatory  requirements  under  an
implied certification theory if material to the government’s decision to buy or pay for a drug. Intent to deceive is not required to establish
liability under the civil FCA. Civil FCA liability may also be imposed for Medicare or Medicaid overpayments caused by understated
rebate amounts that are not refunded within 60 days of discovering the overpayment, even if the overpayment was not caused by a false
or fraudulent act. Actions under the FCA may be brought by the government or as a qui tam action by a private individual in the name of
the  government.  If  the  government  intervenes  in  a  qui  tam  action,  and  prevails,  the  qui  tam  plaintiff  will  share  in  the  proceeds  from
damages  and  fines  or  settlement  funds.  If  the  government  declines  to  intervene,  the  qui  tam  plaintiff  may  pursue  the  case  alone.
Violations of the FCA can result in significant monetary penalties and treble damages. The government may further prosecute conduct
under the criminal FCA, which prohibits the making or presenting of a claim to the government knowing the claim to be false, fictitious
or  fraudulent.  Unlike  the  civil  FCA,  conviction  requires  proof  of  intent  to  submit  a  false  claim.  In  addition,  federal  AKS  violations
(which may be alleged based on certain marketing practices, including allegations of off-label promotion) implicate the FCA.

The  compliance  and  enforcement  landscape,  and  related  risk,  is  informed  by  government  litigation  and  settlement  precedent,
Advisory Opinions, and Special Fraud Alerts. Our approach to compliance may evolve over time in light of these types of developments.

Additionally,  the  FCPA,  and  similar  worldwide  anti-bribery  laws,  generally  prohibit  companies  and  their  intermediaries  from
making, offering or authorizing improper payments or other items of value, directly or indirectly, to foreign officials, political parties, or
candidates for the purpose of obtaining or retaining business. The FCPA also obligates companies whose securities are listed in the U.S.
to comply with accounting provisions requiring us to maintain books and records that accurately and fairly reflect all transactions of the
corporation,  including  international  subsidiaries,  and  to  devise  and  maintain  an  adequate  system  of  internal  accounting  controls  for
international  operations.  Activities  that  violate  the  FCPA,  even  if  they  occur  wholly  outside  the  U.S.,  can  result  in  criminal  and  civil
fines,  imprisonment,  disgorgement,  oversight,  and  debarment  from  securing  government  contracts.  We  cannot  assure  you  that  our
internal control policies and procedures will protect us from reckless or negligent acts committed by our employees, future distributors,

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partners, collaborators or agents. Violations of these laws, or allegations of such violations, could result in fines, penalties or prosecution
and have a negative impact on our business, results of operations and reputation.

Payment or reimbursement of prescription drugs by Medicaid or Medicare requires manufacturers of the drugs to submit pricing
information  to  the  Centers  for  Medicare  &  Medicaid  Services,  or  CMS.  The  Medicaid  Drug  Rebate  statute  requires  manufacturers  to
calculate  and  report  price  points,  which  are  used  to  determine  Medicaid  rebate  payments  shared  between  the  states  and  the  federal
government  and  Medicaid  payment  rates  for  the  drug.  For  drugs  paid  under  Medicare  Part  B,  manufacturers  must  also  calculate  and
report  their  Average  Sales  Price  or  ASP,  which  is  used  to  determine  the  Medicare  Part  B  payment  rate  for  the  drug.  Drugs  that  are
approved under a BLA or a New Drug Application, or NDA, including 505(b)(2) drugs, are subject to an additional inflation penalty
which  can  substantially  increase  rebate  payments.  In  addition,  for  BLA  and  NDA  drugs,  the  Veterans  Health  Care  Act,  or  VHCA,
requires manufacturers to calculate and report to the Veterans Administration, or VA, a different price called the Non Federal Average
Manufacturing Price, which is used to determine the maximum price that can be charged to certain federal agencies, referred to as the
Federal  Ceiling  Price,  or  FCP.  Like  the  Medicaid  rebate  amount,  the  FCP  includes  an  inflation  penalty.  A  Department  of  Defense
regulation requires manufacturers to provide this discount on drugs dispensed by retail pharmacies when paid by the TRICARE Program.
All these price reporting requirements create the risk of submitting false information to the government, and potential FCA liability.

The  VHCA  also  requires  manufacturers  of  covered  drugs  participating  in  the  Medicaid  program  to  enter  into  Federal  Supply
Schedule contracts with the VA through which their covered drugs must be sold to certain federal agencies at FCP and to report pricing
information.  This  necessitates  compliance  with  applicable  federal  procurement  laws  and  regulations  and  subjects  us  to  contractual
remedies as well as administrative, civil, and criminal sanctions. In addition, the VHCA requires manufacturers participating in Medicaid
to agree to provide different mandatory discounts to certain Public Health Service grantees and other safety net hospitals and clinics.

The federal Health Insurance Portability and Accountability Act of 1996, or HIPAA, which imposes criminal and civil penalties
prohibits, among other actions, 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,
any healthcare benefit program, regardless of whether the payor is public or private third-party, 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. A person or entity
does not need to have actual knowledge of the statute, or the specific intent to violate it, to have committed a violation.

We may also be subject to data privacy and security laws and regulation by both the federal government and the states in which
we  conduct  our  business.  HIPAA,  as  amended  by  the  Health  Information  Technology  and  Clinical  Health  Act,  or  HITECH,  and  their
respective  implementing  regulations,  including  the  final  omnibus  rule  published  on  January  25,  2013,  imposes  specific  requirements
relating  to  the  privacy,  security  and  transmission  of  individually  identifiable  health  information  held  by  covered  entities  and  their
business associates. While we would not be a “covered entity” under HIPAA, it is possible that we may enter into a service or business
arrangement  that  would  cause  us  to  serve  as  a  “business  associates,”  defined  as  a  person  or  entity  that  performs  certain  functions  or
activities that involve the use or disclosure of protected health information in connection with providing a service for or on behalf of, or
provide  services  to,  a  covered  entity.  HITECH  also  increased  the  civil  and  criminal  penalties  that  may  be  imposed  against  covered
entities, business associates and possibly other persons, and gave state attorneys general new authority to file civil actions for damages or
injunctions in federal courts to enforce the federal HIPAA laws and seek attorney’s fees and costs associated with pursuing federal civil
actions. In addition, state laws govern the privacy and security of health information in certain circumstances, many of which differ from
each other in significant ways and may not have the same effect. The Department of Health and Human Services Office of Civil Rights,
or the OCR, has increased its focus on compliance and continues to train state attorneys general for enforcement purposes.

Even  for  entities  that  are  not  deemed  “covered  entities”  or  “business  associates”  under  HIPAA,  according  to  the  U.S.  Federal
Trade Commission, or the FTC, failing to take appropriate steps to keep consumers’ personal information secure constitutes unfair acts
or practices in or affecting commerce in violation of Section 5(a) of the Federal Trade Commission Act, or the FTCA, 15 USC § 45(a).
The FTC expects a company's data security measures to be reasonable and appropriate in light of the sensitivity and volume of consumer
information  it  holds,  the  size  and  complexity  of  its  business,  and  the  cost  of  available  tools  to  improve  security  and  reduce
vulnerabilities. Medical data is considered sensitive data that merits stronger safeguards. The FTC's guidance for appropriately securing
consumers' personal information is similar to what is required by the HIPAA Security Rule.

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In addition to the laws discussed above, we may see more stringent state and federal privacy legislation in 2021 and beyond, as the
increased cyber-attacks during the pandemic have heightened attention data privacy and security in the U.S. and other jurisdictions. We
cannot predict where new legislation might arise, the scope of such legislation, or the potential impact to our business and operations.

Payments  made  to  physicians  and  other  healthcare  providers,  and  other  financial  interests,  have  been  the  subject  of  a  range  of
federal  and  state  laws.  The  federal  physician  payment  transparency  requirements,  sometimes  referred  to  as  the  Physician  Payments
Sunshine Act, or the Sunshine Act, was created under the ACA. The Sunshine Act, among other things, imposes reporting requirements
on drug manufacturers for payments or other transfers of value made by them to physicians and teaching hospitals, as well as ownership
and investment interests held by physicians, other healthcare providers, and their immediate family members. Failure to submit required
information may result in civil monetary penalties of up to an aggregate of $150,000 per year and up to an additional aggregate of $1
million  per  year  for  “knowing  failures,”  for  all  payments,  transfers  of  value  or  ownership  or  investment  interests  that  are  not  timely,
accurately  and  completely  reported  in  an  annual  submission.  The  Sunshine  Act  was  amended  requiring  applicable  manufacturers,  in
2021, to begin tracking payments and transfers of value to physician assistants, nurse practitioners, and other mid-level HCPs as well as
physicians,  with  reporting  relative  to  these  mid-level  practitioners  first  due  in  2022.  Additionally,  certain  states  also  mandate
implementation of commercial compliance programs, impose restrictions on drug manufacturer marketing practices and/or require the
tracking and reporting of gifts, compensation and other remuneration to physicians and other HCPs.

Analogous  state  laws  and  regulations,  such  as  state  anti-kickback  and  false  claims  laws,  and  other  state  laws  addressing  the
pharmaceutical  and  healthcare  industries,  which  may  apply  to  items  or  services  reimbursed  by  any  third-party  payor,  including
commercial  insurers,  and  in  some  cases  may  apply  regardless  of  payor,  i.e.,  even  if  reimbursement  is  not  available.  Some  state  laws
require pharmaceutical companies to comply with the pharmaceutical industry's voluntary compliance guidelines, known as the PhRMA
Code, and the relevant compliance program guidance promulgated by the federal government in addition to requiring drug manufacturers
to report pricing and marketing information, including, among other things, information related to gifts, payments, or other remuneration
to  physicians  and  other  healthcare  providers  or  marketing  expenditures,  state  and  local  laws  that  require  the  registration  of
pharmaceutical sales representatives, and state laws governing the privacy and security of health information and the use of prescriber-
identifiable data in certain circumstances, many of which differ from each other in significant ways and may not have the same effect,
thus complicating compliance efforts. For example, California enacted the California Consumer Privacy Act, or CCPA, which went into
effect on January 1, 2020, and was recently amended and expanded by the California Privacy Rights Act, or CPRA, passed on November
3, 2020. While the majority of the CPRA’s substantive provisions will not take effect until January 1, 2023, the CPRA’s expansion of the
“Right to Know” impacts personal information collected on or after January 1, 2022. Companies must still comply with the CCPA during
the ramp up period before CPRA goes into effect. The CCPA and CPRA, among other things, create new data privacy obligations for
covered companies and provide new privacy rights to California residents, including the right to opt out of certain disclosures of their
information.  The  CCPA  also  created  a  private  right  of  action  with  statutory  damages  for  certain  data  breaches,  thereby  potentially
increasing risks associated with a data breach. It remains unclear what, if any, additional modifications will be made to the CPRA by the
California legislature or how it will be interpreted. Therefore, the effects of the CCPA and CPRA are significant and will likely require us
to modify our data processing practices and may cause us to incur substantial costs and expenses to comply.

To the extent that any of our products are sold in a foreign country, we may be subject to similar foreign laws and regulations,
which may include, for instance, applicable post-marketing requirements, including safety surveillance, anti-fraud and abuse laws, and
implementation of corporate compliance programs and reporting of payments or transfers of value to HCPs.

Because of the breadth of these laws and the narrowness of the statutory exceptions and safe harbors available under such laws, it
is possible that certain business activities could be subject to challenge under one or more of such laws. The scope and enforcement of
each of these laws is uncertain and subject to rapid change in the current environment of healthcare reform, especially in light of the lack
of  applicable  precedent  and  regulations.  Federal  and  state  enforcement  bodies  have  recently  increased  their  scrutiny  of  interactions
between  healthcare  companies  and  healthcare  providers,  which  has  led  to  a  number  of  investigations,  prosecutions,  convictions  and
settlements in the healthcare industry. Ensuring that business arrangements with third parties comply with applicable healthcare laws, as
well  as  responding  to  possible  investigations  by  government  authorities,  can  be  time-  and  resource-consuming  and  can  divert
management's attention from the business.

If our operations are found to be in violation of any of such health regulatory laws described above or any other governmental
laws and regulations that apply to us, we may be subject to penalties, including, without limitation, civil, administrative, and criminal
penalties, damages, fines, disgorgement, the curtailment or restructuring of our operations, exclusion from participation in federal and
state healthcare programs and individual imprisonment, injunctions, private qui tam actions brought by individual whistleblowers in the
name  of  the  government,  as  well  as  additional  reporting  obligations  and  oversight  if  we  become  subject  to  a  corporate  integrity
agreement

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or other agreement to resolve allegations of non-compliance with these laws, any of which could adversely affect our ability to operate
our business and our financial results.

Coverage and Reimbursement

Sales of pharmaceutical products depend significantly on the availability of third-party coverage and reimbursement. Third-party
payors include Medicare, Medicaid, and other government programs at the federal and state level, managed care providers, private health
insurers and other organizations. Third party payors decide which drugs they will pay for on behalf of their beneficiaries and establish
reimbursement levels for health care. Although we currently believe that third-party payors will provide coverage and reimbursement for
our product candidates, if approved, these third-party payors are increasingly challenging the price and examining the cost-effectiveness
of  medical  products  and  services,  with  a  recent  focus  on  prioritization  of  “equivalent,”  less  expensive  alternatives  when  available.  In
addition, significant uncertainty exists as to the reimbursement status of newly approved healthcare products. We may need to conduct
expensive clinical trials to demonstrate the comparative cost-effectiveness of our products. The product candidates that we develop may
not be considered cost-effective. It is time-consuming and expensive for us to seek coverage and reimbursement from third-party payors.
Moreover,  a  payor’s  decision  to  provide  coverage  for  a  drug  product  does  not  imply  that  an  adequate  reimbursement  rate  will  be
approved,  especially  for  product  candidates  such  as  ours,  which  are  used  in  the  inpatient  setting,  usually  resulting  in  no  separate
reimbursement  for  pharmaceuticals.  There  are  additional  pressures  on  pricing  as  a  result  of  other,  peripheral  policies  impacting
reimbursement  across  both  government  and  private  payors.  Non-health  specific  policies  may  impart  downstream  impacts  on  private
insurance reimbursement decision-making. In consideration of these numerous factors, reimbursement may not be available or sufficient
to allow us to sell our products on a competitive and profitable basis.

Medicare is a federally funded program managed by CMS through local contractors that administer coverage and reimbursement
for  certain  healthcare  items  and  services  furnished  to  the  elderly  and  disabled.  Medicare  Part  A  covers  inpatient  hospitalization  and
Medicare Part B covers outpatient medical services. Medicare coverage of drugs and biological products and payment rates to providers
are established by federal law and regulations. Medicaid is an insurance program for certain categories of low-income patients who are
otherwise uninsured and is both federally and state funded and managed by each state. The federal government sets general guidelines
for Medicaid and requires rebates on outpatient drugs and biological products, including those administered by physicians if the cost is
billed separately. Each state creates specific regulations that govern its individual program, including supplemental rebate programs that
prioritize  coverage  for  drugs  on  the  state  Preferred  Drug  List.  Government  laws  and  regulations  also  establish  price  controls  on
prescription  drugs  purchased  by  government  agencies  that  provide  health  care  and  certain  federally  funded  hospital  outpatient
departments and clinics. In the U.S., private health insurers and other third-party payors often provide reimbursement for products and
services  based  on  the  level  at  which  the  government  provides  reimbursement  through  the  Medicare  or  Medicaid  programs  for  such
products  and  services.  These  restrictions  and  limitations  influence  the  purchase  of  healthcare  services  and  products.  In  addition,
government programs like Medicaid include substantial penalties for increasing commercial prices over the rate of inflation which can
affect realization and return on investment. Further, some stakeholders have recently questioned whether the market price of prescription
drugs may be inflated by virtue of the built-in cost imparted by the government rebate model, often negotiated indirectly in exchange for
a coverage determination or formulary placement where relevant.

In the U.S., the European Union, and other potentially significant markets for our product candidates, government authorities and
private third-party payors are increasingly attempting to limit or regulate the price of medical products and services, particularly for new
and  innovative  products  and  therapies,  which  often  has  resulted  in  average  selling  prices  lower  than  they  would  otherwise  be.
Manufacturers frequently must rebate a portion of the prescription price to the third-party payors as a condition of coverage, which can
greatly reduce realization on the sale. Third-party payors are increasingly challenging the price and examining the medical necessity and
cost-effectiveness of medical products and services, in addition to their safety and efficacy, and are developing increasingly sophisticated
methods  of  controlling  healthcare  costs.  They  may  limit  coverage  to  specific  drug  products  on  an  approved  list,  or  formulary,  which
might  not  include  all  the  FDA-approved  drug  products  for  a  particular  indication,  or  they  may  control  costs,  particularly  for  new
expensive  therapies,  by  requiring  prior  authorization  or  imposing  other  restrictions  before  covering  certain  products,  or  they  may
condition payment based on achieving performance metrics. Legislative proposals to reform healthcare or reduce costs under government
programs may result in lower reimbursement for our product candidates or exclusion of our product candidates from coverage.

Achieving favorable CMS coverage and reimbursement is usually a significant gating issue for successful introduction of a new
product, because Medicare and Medicaid can represent a sizeable share of the market and because private payors often rely on the lead of
the  governmental  payors  in  rendering  coverage  and  reimbursement  determinations.  Further,  the  increased  emphasis  on  managed
healthcare in the U.S. and on country and regional pricing and reimbursement controls in the European Union will likely put additional

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pressure  on  product  pricing,  reimbursement,  and  utilization,  which  may  adversely  affect  our  future  product  sales  and  results  of
operations.  These  pressures  can  arise  from  rules  and  practices  of  managed  care  groups,  competition  within  therapeutic  classes,
availability  of  generic  equivalents,  judicial  decisions  and  governmental  laws  and  regulations  related  to  Medicare,  Medicaid,  and
healthcare reform, pharmaceutical coverage and reimbursement policies, and pricing in general. Patients who are prescribed treatments
for their conditions and providers performing the prescribed services generally rely on third-party payors to reimburse all or part of the
associated  healthcare  costs.  Sales  of  our  product  candidates  will  therefore  depend  substantially,  both  domestically  and  abroad,  on  the
extent  to  which  the  costs  of  our  products  will  be  paid  by  health  maintenance,  managed  care,  pharmacy  benefit  and  similar  healthcare
management  organizations,  or  reimbursed  by  government  health  administration  authorities,  such  as  Medicare  and  Medicaid,  private
health insurers, and other third-party payors.

As  a  result  of  the  above,  we  may  need  to  conduct  expensive  pharmacoeconomic  studies  in  order  to  demonstrate  the  medical
necessity and cost-effectiveness of our products, in addition to the costs required to obtain FDA approvals. Our product candidates may
not be considered medically necessary or cost-effective. A payor’s decision to provide coverage for a drug product does not imply that an
adequate reimbursement rate will be approved. Adequate third-party reimbursement may not be available to ensure acceptance and use of
our products and product candidates or enable us to maintain price levels sufficient to realize an appropriate return on our investment in
drug development. Legislative and regulatory proposals to reform healthcare or reduce costs under government insurance programs may
result  in  lower  reimbursement  for  our  products  and  product  candidates  or  exclusion  of  our  products  and  product  candidates  from
coverage.  The  cost  containment  measures  that  healthcare  payors  and  providers  are  instituting  and  any  healthcare  reform  could
significantly reduce our revenues from the sale of any approved product candidates. We cannot provide any assurances that we will be
able to obtain and maintain third-party coverage or adequate reimbursement for our product candidates in whole or in part.

Healthcare Reform

The  U.S.  and  some  foreign  jurisdictions  are  considering  or  have  enacted  a  number  of  legislative  and  regulatory  proposals  to
change the healthcare system in ways that could affect our ability to sell our products profitably. Among policy makers and payors in the
U.S. and elsewhere, there is significant interest in promoting changes in healthcare systems with the stated goals of containing healthcare
costs, improving quality and/or expanding access. In the U.S., the pharmaceutical industry has been a particular focus of these efforts and
has been significantly affected by major federal and state legislative initiatives.

In addition, other legislative and regulatory changes have been proposed and adopted since the ACA was enacted. These changes
include aggregate reductions to Medicare payments to providers of up to 2% per fiscal year, starting in 2013, which will remain in effect
through 2025 unless additional Congressional action is taken. In January 2013, the American Taxpayer Relief Act of 2012, which, among
other  things,  further  reduced  Medicare  payments  to  several  providers,  including  hospitals  and  cancer  treatment  centers,  increased  the
statute  of  limitations  period  for  the  government  to  recover  overpayments  to  providers  from  three  to  five  years.  In  2017,  CMS
promulgated a rule reducing Medicare Part B reimbursement to hospitals for drugs purchased under the 340B program by 30%. Although
hospital trade associations filed a lawsuit challenging the regulation, the final rule is now in effect.

In recent years, there have been and continue to be proposals by the federal government, state governments, regulators, and third-
party payors to control these costs and, more generally, to reform the U.S. health care system. Certain of these proposals could limit the
prices we are able to charge for our products or the amounts of reimbursement available for our products. These laws and future laws
may result in additional reductions in Medicare and other healthcare funding, which could have a material adverse effect on customers
for our product candidates, if approved, and, accordingly, our financial operations.

Any  reduction  in  reimbursement  from  Medicare  or  other  government-funded  programs  may  result  in  a  similar  reduction  in
payments from private payors. The implementation of cost containment measures or other healthcare reforms may prevent us from being
able to generate revenue, attain profitability or commercialize our drugs.

The cost of pharmaceuticals continues to generate substantial governmental and third-party payor interest and states have begun to
take  action  to  increase  transparency  in  drug  pricing  through  mandatory  reporting  requirements.  We  expect  that  the  pharmaceutical
industry  will  experience  pricing  pressures  due  to  the  trend  toward  managed  healthcare,  the  increasing  influence  of  managed  care
organizations, and additional legislative proposals. Our results of operations could be adversely affected by current and future healthcare
reforms.  While  we  cannot  predict  whether  any  proposed  cost-containment  measures  will  be  adopted  or  otherwise  implemented  in  the
future, the announcement or adoption of these proposals could have a material adverse effect on our ability to obtain adequate prices for
our product candidates and operate profitably.

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Foreign Regulation

In  addition  to  regulations  in  the  U.S.,  we  will  be  subject  to  a  variety  of  foreign  regulations  governing  clinical  trials  and
commercial  sales  and  distribution  of  our  products  to  the  extent  we  choose  to  develop  or  sell  any  products  outside  of  the  U.S.  The
approval process varies from country to country and the time may be longer or shorter than that required to obtain FDA approval. The
requirements governing the conduct of clinical trials, product licensing, pricing and reimbursement vary greatly from country to country.

In the EU and the United Kingdom, member states require both regulatory clearances by the national competent authority and a
favorable  ethics  committee  opinion  prior  to  the  commencement  of  a  clinical  trial.  Under  the  EU  regulatory  systems,  marketing
authorization applications may be submitted under either a centralized or decentralized procedure. The centralized procedure provides for
the grant of a single marketing authorization that is valid for all EU member states. It is compulsory for medicines produced by certain
biotechnological processes. Because our products are produced in that way, we would be subject to the centralized process. Under the
centralized  procedure,  pharmaceutical  companies  submit  a  single  marketing  authorization  application  to  the  European  Medicines
Agency. Once granted by the European Commission, a centralized marketing authorization is valid in all EU member states, as well as
the  European  Economic  Area  countries.  By  law,  a  company  can  only  start  to  market  a  medicine  once  it  has  received  a  marketing
authorization.

Employees and Human Capital Management

As of December 31, 2023, we had 557 employees, 425 of whom were engaged in research and development activities and 132 of
whom  were  engaged  in  general  and  administrative  support  activities.  None  of  our  employees  are  subject  to  a  collective  bargaining
agreement.  Our  employees  are  highly  skilled,  and  many  hold  advanced  degrees.  Most  of  our  employees  have  experience  with  the
development  of  cell  therapies.  We  consider  our  relationship  with  our  employees  to  be  good.  Our  future  performance  depends
significantly upon the continued service of our key scientific, technical and senior management personnel and our continued ability to
attract and retain highly skilled employees. We provide our employees with competitive salaries and bonuses, opportunities for equity
ownership, development programs that enable continued learning and growth, career opportunities, and a robust employment package
that promotes well-being across all aspects of their lives. In addition to salaries, these programs include potential annual discretionary
bonuses,  stock  awards,  Employee  Stock  Purchase  Plan,  a  401(k)  plan,  healthcare  and  insurance  benefits,  health  savings  and  flexible
spending  accounts,  paid  time  off,  family  leave,  and  flexible  work  schedules,  among  other  benefits.  We  may  take  further  actions,  in
compliance with all appropriate government regulations, that we determine to be in the best interest of our employees.

Available Information

We  maintain  a  website  at  www.iovance.com  and  make  available  there,  free  of  charge,  our  periodic  reports  filed  with  the  U.S.
Securities  and  Exchange  Commission,  or  SEC,  as  soon  as  is  reasonably  practicable  after  filing.  The  SEC  maintains  a  website  at
http:/www.sec.gov that contains reports, proxy and information statements, and other information regarding issuers such as us that file
electronically with the SEC.

Item 1A.

Risk Factors

The  risks  described  below  may  not  be  the  only  ones  relating  to  our  company.  Additional  risks  that  we  currently  believe  are
immaterial may also impair our business operations. Our business, financial conditions and future prospects and the trading price of our
common  stock  could  be  harmed  as  a  result  of  any  of  these  risks.  Investors  should  also  refer  to  the  other  information  contained  or
incorporated  by  reference  in  this  Annual  Report  on  Form  10-K,  including  our  financial  statements  and  related  notes,  and  our  other
filings from time to time with the SEC.

Risk Factors Summary

Our business is subject to a number of risks and uncertainties, including those risks discussed at length below. These risks include,
among others, the brief bulleted list of our principal risk factors set forth below that make an investment in our company speculative or
risky. You are encouraged to carefully review our full discussion of the material risk factors relevant to an investment in our business,
which follows the brief bulleted list of our principal risk factors set forth below:

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Risks Related to Our Business:

● We have a history of operating losses; we expect to continue to incur losses and we may never be profitable;
● We may need additional financing to fund our operations and complete the development of our various product candidates and
commercialization  of  our  products,  and  if  we  are  unable  to  obtain  such  financing,  we  may  be  unable  to  complete  the
development of our product candidates and commercialization of our products. Raising additional capital may cause dilution to
our existing stockholders, restrict our operations or require us to relinquish rights to our technologies or product candidates;
● The  manufacture  of  our  products  and  product  candidates  is  complex,  and  we  may  encounter  difficulties  in  production,
particularly with respect to process development, quality control, or scaling-up of our manufacturing capabilities. If we, or any
of our third-party manufacturers encounter such difficulties, our ability to provide supply of our product candidates for clinical
trials or our products for patients could be delayed or stopped, or we may be unable to maintain a commercially viable cost
structure;

● Cell-based  therapies  and  biologics  rely  on  the  availability  of  biological  raw  materials  (including  live  cells),  chemicals  and
agents used for manufacturing, reagents, specialized equipment, and other specialty materials, which may not be available to us
on  acceptable  terms  or  at  all.  For  each  of  these,  we  rely  or  may  rely  on  treatment  sites,  limited  manufacturers,  sole  source
vendors, or a limited number of vendors, which could impair our ability to manufacture and supply our products;

● Because  our  current  products  represent,  and  our  other  potential  product  candidates  will  represent  novel  approaches  to  the
treatment of disease, there are many uncertainties regarding the development, the market acceptance, third-party reimbursement
coverage and the commercial potential of our product candidates;

● No assurance can be given that the Gen 2 manufacturing process or other processes we have selected will be FDA-compliant or

more efficient and will lower the cost to manufacture TIL products;

● We face significant competition from other biotechnology and pharmaceutical companies and from non-profit institutions;
● Our projections regarding the market opportunities for our products and product candidates may not be accurate, and the actual

market for our products and product candidates may be smaller than we estimate;

● We may be unable to establish effective marketing and sales capabilities or enter into agreements with third parties to market
and sell our products and product candidates, if they are approved, and as a result, we may be unable to generate significant
product revenues;

● If our products or product candidates do not achieve broad market acceptance, the revenues that we generate from their sales

will be limited;

● Our products and product candidates may face competition sooner than anticipated;
● As a condition of approval, the FDA may require that we implement various post-marketing requirements and conduct post-
marketing studies, any of which would require a substantial investment of time, effort, and money, and which may limit our
commercial prospects;

● We will need to grow the size and capabilities of our organization, and we may experience difficulties in managing this growth;
● We  may  rely  on  third  parties  to  perform  many  essential  services  for  any  products  that  we  commercialize,  including  services
related  to  distribution,  government  price  reporting,  customer  service,  accounts  receivable  management,  cash  collection,  and
adverse event reporting. If these third parties fail to perform as expected or to comply with legal and regulatory requirements,
our ability to commercialize our current or future products will be significantly impacted and we may be subject to regulatory
sanctions;

● We may be unable to successfully or sufficiently expand our manufacturing capacity to meet demand for our products;
● We  depend  on  the  success  of  our  product  candidates  and  cannot  guarantee  that  these  product  candidates  will  successfully

complete development, receive regulatory approval, or be successfully commercialized;

● Development of a product candidate intended for use in combination with an already approved product may present more or

different challenges than development of a product candidate for use as a single agent;

● A Fast Track product designation, BTD, or other designation to facilitate product candidate development may not lead to faster
development  or  a  faster  regulatory  review  or  approval  process,  and  it  does  not  increase  the  likelihood  that  our  product
candidates will receive marketing approval;

● While lifileucel has received ODD for melanoma stages IIB-IV and for cervical cancer patients with tumors greater than 2 cm,
there is no guarantee that we will be able to maintain this designation, receive these designations for any of our other product
candidates, or receive or maintain any corresponding benefits, including periods of exclusivity;

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● We may encounter substantial delays in our clinical trials or may not be able to conduct our clinical trials on the timelines we
expect and we may be required to conduct additional clinical trials or modify current or future clinical trials based on feedback
we receive from the FDA;

● It may take longer and cost more to complete our clinical trials than we project, or we may not be able to complete them at all;
● Our clinical trials may fail to demonstrate adequately the safety and efficacy of our product candidates, which would prevent or

delay regulatory approval and commercialization;

● We are required to pay substantial royalties and lump sum benchmark payments under our license or acquisition agreements
with the NIH, Moffitt, Novartis, Clinigen, and Cellectis, and we must meet certain milestones to maintain our license rights;
● We rely on and collaborate with governmental, academic, and corporate partners or agencies to approve, improve, and develop
TIL  cell  therapies  for  new  indications  for  use  in  combination  with  other  therapies  and  to  evaluate  new  TIL  manufacturing
methods,  the  results  of  which,  because  the  manufacturing  processes  are  not  within  our  control,  and  may  be  incorrect  or
unreliable;

● Our  business  could  be  adversely  affected  by  the  effects  of  health  epidemics,  including  the  COVID-19  pandemic,  in  regions
where  we  or  third  parties  on  which  we  rely  have  significant  manufacturing  facilities,  concentrations  of  clinical  trial  sites  or
other business operations. The COVID-19 pandemic could materially affect our operations, including at our headquarters in San
Carlos, California and at our manufacturing facility in Philadelphia, Pennsylvania, which have previously been subject to state
executive  orders  and  shelter-in-place  orders,  and  at  our  clinical  trial  sites,  as  well  as  the  business  or  operations  of  our  other
manufacturers, contract research organizations, or CROs, or other third parties with whom we conduct business;

● We  are  currently  operating  in  a  period  of  economic  uncertainty  and  capital  markets  disruption,  which  has  been  significantly
impacted by geopolitical instability, ongoing military conflicts between Russia and Ukraine and Israel and Hamas and record
inflation.  Our  business,  financial  condition  and  results  of  operations  could  be  materially  adversely  affected  by  any  negative
impact  on  the  global  economy  and  capital  markets  resulting  from  the  conflict  in  Ukraine  and  the  Middle  East,  geopolitical
tensions or record inflation;

● Climate change or legal, regulatory or market measures to address climate change may negatively affect our business, results of

operations, cash flows and prospects; and

● Environmental, social and governance matters may impact our business and reputation.

Risks Related to Government Regulation:

● We are subject to extensive regulation, which can be costly, time consuming and can subject us to unanticipated delays; even
after  obtaining  regulatory  approval  for  some  of  our  products  and/or  product  candidates,  those  products  and/or  product
candidates may still face regulatory difficulties;

● The FDA regulatory approval process is lengthy and time-consuming, and we may experience significant delays in the clinical

development and regulatory approval of our product candidates;

● Obtaining  and  maintaining  regulatory  approval  of  our  product  candidates  in  one  jurisdiction  does  not  mean  that  we  will  be

successful in obtaining regulatory approval of our product candidates in other jurisdictions;

● Coverage and reimbursement may be limited or unavailable in certain market segments for our product candidates, which could

make it difficult for us to sell our product candidates profitably; and

● Governments outside the U.S. tend to impose strict price controls, which may adversely affect our revenues, if any.

The  summary  risk  factors  described  above  should  be  read  together  with  the  text  of  the  full  risk  factors  below  in  this  section
entitled “Risk Factors”  and  the  other  information  set  forth  in  this  Annual  Report  on  Form  10-K,  including  our  consolidated  financial
statements and the related notes, as well as in other documents that we file with the SEC. The risks summarized above or described in
full below are not the only risks that we face. Additional risks and uncertainties not precisely known to us or that we currently deem to be
immaterial may also materially adversely affect our business, financial condition, results of operations and future growth prospects.

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Risks Related to Our Business

Risks Related to Our Financial Position and Need for Additional Capital

We have a history of operating losses; we expect to continue to incur losses and we may never be profitable.

We are a commercial-stage biopharmaceutical company pioneering a transformational approach to treating cancer by harnessing
the  human  immune  system’s  ability  to  recognize  and  destroy  diverse  cancer  cells  using  therapies  personalized  for  each  patient.  Until
recently, we did not have products approved for commercial sale and have not generated significant revenue from operations. With the
closing of the acquisition of the worldwide rights to Proleukin® in May 2023, we began to have commercial sales. As of December 31,
2023, we had an accumulated deficit of $2.0 billion. In addition, during the year ended December 31, 2023, we incurred a net loss of
$444.0 million. While we are beginning the commercial launch of our product, Amtagvi™, we do not expect to generate any meaningful
product sales until later in 2024. We expect to incur significant additional operating losses in the future as we expand our development
and clinical trial activities in support of demonstrating the effectiveness of our products.

Our ability to achieve long-term profitability is dependent upon obtaining regulatory approvals for our products and successfully
commercializing  our  products  alone  or  with  third  parties.  However,  our  operations  may  not  be  profitable  even  if  any  of  our  products
under development are successfully developed and produced and thereafter commercialized.

We may need additional financing to fund our operations and complete the development of our various product candidates and
commercialization of our products, and if we are unable to obtain such financing, we may be unable to complete the development of
our  product  candidates  and  commercialization  of  our  products.  Raising  additional  capital  may  cause  dilution  to  our  existing
stockholders, restrict our operations or require us to relinquish rights to our technologies or product candidates.

Our operations have consumed substantial amounts of cash since inception. From our inception to December 31, 2023, we have an
accumulated deficit of $2.0 billion. In addition, our research and development and our operating costs have also been substantial and are
expected to increase. For example, in October 2018, we closed an underwritten public offering of our common stock. The net proceeds
from the offering, after deducting the underwriting discounts and commissions and other offering expenses payable by us, were $236.7
million. In June 2020, we closed another underwritten offering of our common stock. The net proceeds from the offering, after deducting
the underwriting discounts and commissions and other offering expenses payable by us, were $567.0 million. In July 2023, we closed
another underwritten offering of our common stock. The net proceeds from the offering, after deducting the underwriting discounts and
commissions and other offering expenses payable by us, were $161.5 million. In February 2021, we entered into an open market sale
agreement,  or  the  2021  Sale  Agreement,  with  Jefferies  LLC,  or  Jefferies,  which  provided  for  the  sale  of  up  to  $350.0  million  of  our
common  stock  from  time  to  time,  which  was  subsequently  increased  to  $500.0  million  in  November  2022  upon  the  execution  of  an
updated open market sale agreement, or the 2022 Sale Agreement, with Jefferies. In June 2023, we entered into a new open market sale
agreement, or the 2023 Sale Agreement, with Jefferies, which superseded the 2022 Sale Agreement and provided for the sale of up to
$450.0  million  of  our  common  stock  from  time  to  time.  As  of  December  31,  2023,  we  had  $346.3  million  in  cash,  cash  equivalents,
investments, and restricted cash ($114.9 million of cash and cash equivalents, $165.0 million in short-term investments, and restricted
cash of $66.4 million).

Accordingly, based on the funds we have available as of the date these consolidated financial statements are issued, which include
estimated  net  proceeds  (after  deducting  underwriting  and  other  offering  expenses)  of  approximately  $197.1  million  from  the  public
offering  of  our  common  stock  completed  on  February  22,  2024,  we  believe  that  we  have  sufficient  capital  to  fund  our  anticipated
operating expenses and capital expenditures as planned for at least the next twelve months following the issuance of our consolidated
financial  statements  included  in  this  Annual  Report  on  Form  10-K.  However,  in  order  to  complete  the  development  of  our  current
product candidates, and in order to effect our business plan, including establishing our own manufacturing facility, we anticipate that we
will  have  to  spend  more  than  the  funds  currently  available  to  us.  Furthermore,  changing  circumstances  may  cause  us  to  increase  our
spending  significantly  faster  than  we  currently  anticipate,  and  we  may  require  additional  capital  for  the  further  development  of  our
product candidates and commercialization of our products and may need to raise additional funds sooner if we choose to expand more
rapidly than we presently anticipate. Moreover, our fixed expenses such as rent, minimum payments to our contract manufacturers, and
other contractual commitments, including those for our research collaborations, are substantial and are expected to increase in the future.

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We will need to obtain additional financing to fund our future operations, including completing the development of our product
candidates  and  commercialization  of  our  products.  Our  future  funding  requirements  will  depend  on  many  factors,  including,  but  not
limited to:

● progress, timing, scope and costs of our clinical trials, including the ability to timely initiate clinical sites, enroll subjects and

manufacture TIL for treatment for patients in our ongoing, planned and potential future clinical trials;

● time and cost necessary to obtain regulatory approvals that may be required by regulatory authorities to execute clinical trials

or commercialize our product;

● our ability to successfully commercialize our product candidates, if approved;
● our ability to have clinical and commercial product successfully manufactured consistent with FDA and European Medicines

Agency, or EMA, regulations;

● amount of sales and other revenues from product candidates that we may commercialize, if any, including the selling prices

for such potential products and the availability of adequate third-party coverage and reimbursement for patients;

● sales  and  marketing  costs  associated  with  commercializing  our  products,  if  approved,  including  the  cost  and  timing  of

building our marketing and sales capabilities;

● cost of building, staffing and validating our own manufacturing facility in the U.S.;
● terms  and  timing  of  our  current  and  any  potential  future  collaborations,  licensing  or  other  arrangements  that  we  have

established or may establish;

● cash requirements of any future acquisitions or the development of other product candidates;
● costs of operating as a public company;
● time and cost necessary to respond to technological, regulatory, political and market developments;
● costs of filing, prosecuting, defending and enforcing any patent claims and other intellectual property rights; and
● costs  associated  with  any  potential  business  or  product  acquisitions  (such  as  the  acquisition  of  Proleukin®),  strategic

collaborations, licensing agreements or other arrangements that we may establish.

Unless  and  until  we  can  generate  a  sufficient  amount  of  revenue,  we  may  finance  future  cash  needs  through  public  or  private
equity  offerings,  license  agreements,  debt  financings,  collaborations,  strategic  alliances  and  marketing  or  distribution  arrangements.
Additional funds may not be available when we need them on terms that are acceptable to us, or at all. We have no committed source of
additional capital and if we are unable to raise additional capital in sufficient amounts or on terms acceptable to us, we may be required
to delay or reduce the scope of or eliminate one or more of our research or development programs or our commercialization efforts. Our
current  license  and  collaboration  agreements  may  also  be  terminated  if  we  are  unable  to  meet  the  payment  obligations  under  those
agreements. As a result, we may seek to access the public or private capital markets whenever conditions are favorable, even if we do not
have an immediate need for additional capital at that time.

To the extent that we raise additional capital through the sale of equity or convertible debt securities, your ownership interest will
be diluted, and the terms may include liquidation or other preferences that adversely affect your rights as a stockholder. The incurrence of
indebtedness would result in increased fixed payment obligations and could involve certain restrictive covenants, such as limitations on
our  ability  to  incur  additional  debt,  limitations  on  our  ability  to  acquire  or  license  intellectual  property  rights  and  other  operating
restrictions that could adversely impact our ability to conduct our business. If we raise additional funds through strategic partnerships and
alliances  and  licensing  arrangements  with  third  parties,  we  may  have  to  relinquish  valuable  rights  to  our  technologies  or  product
candidates, or grant licenses on terms unfavorable to us.

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Subject to various spending levels approved by our Board of Directors, our management will have broad discretion in the use
of the net proceeds from our capital raises, including our July 2023, June 2020, October 2018 and January 2018 public offerings and
the proceeds from sales pursuant to our “at-the-market” sale agreement with Jefferies LLC, and may not use them effectively.

Our management will have discretion in the application of the net proceeds from our capital raises, including our July 2023, June
2020, October 2018, and January 2018 public offerings, and the proceeds from sales pursuant to the 2023 Sale Agreement with Jefferies,
which  provides  for  the  sale  of  up  to  $450.0  million  of  our  common  stock  from  time  to  time,  and  our  stockholders  will  not  have  the
opportunity as part of their investment decision to assess whether the net proceeds from our capital raises are being used appropriately.
You  may  not  agree  with  our  decisions,  and  our  use  of  the  proceeds  from  our  capital  raises  may  not  yield  any  return  to  stockholders.
Because of the number and variability of factors that will determine our use of the net proceeds from our capital raises, their ultimate use
may  vary  substantially  from  their  currently  intended  use.  Our  failure  to  apply  the  net  proceeds  of  our  capital  raises  effectively  could
compromise our ability to pursue our growth strategy and we might not be able to yield a significant return, if any, on our investment of
those net proceeds. Stockholders will not have the opportunity to influence our decisions on how to use our net proceeds from our capital
raises. Pending their use, we may invest the net proceeds from our capital raises in interest and non-interest-bearing cash accounts, short-
term, investment-grade, interest-bearing instruments and U.S. government securities. These temporary investments are not likely to yield
a significant return.

The use of our net operating loss carryforwards and research tax credits may be limited.

Our  net  operating  loss  carryforwards  and  any  future  research  and  development  tax  credits  may  expire  and  not  be  used.  As  of
December  31,  2023,  we  had  U.S.  federal  net  operating  loss  carryforwards  of  approximately  $1.2  billion.  Our  net  operating  loss
carryforwards arising in taxable years ending on or prior to December 31, 2017, will begin expiring in 2027 if we have not used them
prior to that time. Net operating loss carryforwards arising in taxable years ending after December 31, 2017, are no longer subject to
expiration under the Internal Revenue Code of 1986, as amended, or the Code. Additionally, our ability to use any net operating loss and
credit carryforwards to offset taxable income or tax, respectively, in the future will be limited under Sections 382 and 383 of the Code,
respectively, if we have a cumulative change in ownership of more than 50% within a three-year period.

Prior  to  December  31,  2023,  we  experienced  multiple  ownership  changes.  As  a  result,  the  federal  and  state  carryforwards
associated  with  the  net  operating  loss  and  credit  deferred  tax  assets  were  reduced  by  the  amount  of  tax  attributes  estimated  to  expire
during  their  respective  carryforward  periods.  In  addition,  since  we  will  need  to  raise  substantial  additional  funding  to  finance  our
operations, we may undergo further ownership changes in the future. Any such annual limitation may significantly reduce the utilization
of the net operating loss carryforwards and research tax credits before they expire. Depending on our future tax position, limitation of our
ability to use net operating loss carryforwards in states in which we are subject to income tax could have an adverse impact on our results
of operations and financial condition.

Recently  enacted  tax  reform  legislation  in  the  U.S.,  changes  to  existing  tax  laws,  or  challenges  to  our  tax  positions  could

adversely affect our business and financial condition.

In recent years, various tax legislations were signed into law. On December 22, 2017, the Tax Cuts and Jobs Act of 2017, or the

Tax Act, was signed into law, making significant changes to the Internal Revenue Code.

On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security Act, or the CARES Act, was enacted in response to the
COVID-19 pandemic. Certain provisions of the CARES Act amend or suspend certain provisions of the Tax Act. For example, the tax
relief measures under the CARES Act for businesses include a five-year net operating loss carryback, suspension of annual deduction
limitation of 80% of taxable income from net operating losses generated in a tax year beginning after December 31, 2017, changes in the
deductibility  of  interest,  acceleration  of  alternative  minimum  tax  credit  refunds,  payroll  tax  relief,  and  a  technical  correction  to  allow
accelerated  deductions  for  qualified  improvement  property.  On  June  15,  2020,  Assembly  Bill  85  was  passed  in  California  which
suspended the use of net operating losses and limited the use of credits for certain corporations. Changes to existing federal and state tax
laws could adversely impact our business, results of operations and financial position as the impact of recent tax legislation is uncertain.  

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In  addition,  U.S.  federal,  state  and  local  tax  laws  are  extremely  complex  and  subject  to  various  interpretations.  Although  we
believe that our tax estimates and positions are reasonable, including our decision to build the iCTC at the Navy Yard in Philadelphia in
order to take advantage of the site’s designation as a Keystone Opportunity Zone, Keystone Opportunity Expansion Zone, or Keystone
Opportunity  Improvement  Zone,  or  collectively  a  KOZ,  which  allows  incentives  for  business  development,  as  well  as  certain  other
financial  incentives  provided  by  the  Commonwealth  of  Pennsylvania,  the  City  of  Philadelphia  and  the  Philadelphia  Industrial
Development Corporation, there can be no assurance that our tax positions will not be challenged by relevant tax authorities or that we
would be successful in any such challenge. Further, challenges to the site's designation as a KOZ or broader challenges to Pennsylvania's
KOZ program could result in the revocation of the site’s designation as a KOZ and the attendant tax advantages associated with such
designation. If we are unsuccessful in such a challenge, or if the site’s status as a KOZ is revoked, the relevant tax authorities may assess
additional  taxes,  which  could  result  in  adjustments  to,  or  impact  the  timing  or  amount  of,  taxable  income,  deductions  or  other  tax
allocations, which may adversely affect our results of operations and financial position.

Risks Related to the Manufacturing and Commercialization of Our Products and Product Candidates

Even though our lead product Amtagvi™ is approved and commercialized, we may not become profitable.

Our lead product, Amtagvi™, is initially targeting a small population of refractory patients that suffer from metastatic melanoma.
Even  with  FDA  approval  of  Amtagvi™,  and  even  if  we  obtain  significant  market  share,  because  the  potential  target  population  for
Amtagvi™ in refractory patients may be small, we may never achieve profitability without obtaining regulatory approval for additional
indications. The FDA often approves new therapies initially only for use in patients with relapsed or refractory metastatic disease. We
expect  to  initially  seek  approval  of  our  product  candidates  in  this  setting  and  are  currently  conducting  clinical  trials  on  these  patient
populations. Since Proleukin® is an established product and there are competing products in development, the success of Proleukin® is
closely tied to Amtagvi™ and use with other cell therapies. An approval for a marketed product, such as Proleukin®, may be withdrawn
by  the  FDA  or  another  regulatory  agency  and  disrupt  both  Proleukin®  and  Amtagvi™  because  of  their  codependency.  Additionally,
Proleukin®  revenues  are  dependent  upon  continued  use  in  manufacturing  and  clinical  settings  by  Iovance  and  other  cell  therapy
companies.

The  manufacture  of  our  products  and  product  candidates  is  complex,  and  we  may  encounter  difficulties  in  production,
particularly with respect to process development, quality control, or scaling-up of our manufacturing capabilities. If we, or any of our
third-party manufacturers encounter such difficulties, our ability to provide supply of our product candidates for clinical trials or our
products for patients could be delayed or stopped, or we may be unable to maintain a commercially viable cost structure.

Our products and product candidates are biologics and the process of manufacturing our products is complex, highly regulated and
subject  to  multiple  risks.  The  manufacture  of  our  products  and  product  candidates  involves  complex  processes,  including  harvesting
tumor  fragments  from  patients,  isolating  the  T-cells  from  the  tumor  fragments,  multiplying  the  T-cells  to  obtain  the  desired  dose,  and
ultimately  infusing  the  T-cells  back  into  a  patient.  The  complexities  of  manufacturing  cell  therapy  products  require  extensive
collaboration  with  treatment  centers  including  the  provision  of  patient  tumor  tissue  for  manufacture.  Manufacturing  is  dependent  on
many  factors  including  quality  of  the  patient  tumor  tissue,  treatment  center  training,  and  unique  factors  specific  to  autologous  cell
therapy manufacturing that can jeopardize the product approval, launch, scale, and capacity. As a result of the complexities, the cost to
manufacture  biologics  is  generally  higher  than  traditional  small  molecule  chemical  compounds,  and  the  manufacturing  process  is  less
reliable and is more difficult to reproduce. Our manufacturing process will be susceptible to product loss or failure due to logistical issues
associated with the collection of tumor fragments, or starting material, from the patient, shipping such material to the manufacturing site,
shipping  the  final  product  back  to  the  patient,  and  infusing  the  patient  with  the  product,  manufacturing  issues  associated  with  the
differences  in  patient  starting  material,  interruptions  in  the  manufacturing  process,  contamination,  equipment  failure,  assay  failures,
improper  installation  or  operation  of  equipment,  vendor  or  operator  error,  inconsistency  in  cell  growth,  meeting  pre-specified  release
criteria, and variability in product characteristics. Even minor deviations from normal manufacturing processes could result in reduced
production yields, product defects, and other supply disruptions. If for any reason we lose a patient’s starting material, or later-developed
product  at  any  point  in  the  process,  or  if  any  product  does  not  meet  the  applicable  specifications,  the  manufacturing  process  for  that
patient  will  need  to  be  restarted,  including  resection  of  the  proper  amount  of  tumor  fragment,  and  the  resulting  delay  may  adversely
affect that patient’s outcome. If microbial, viral, environmental or other contaminations are discovered in our product candidates or in the
manufacturing facilities in which our product candidates are made, such manufacturing facilities may need to be closed for an extended
period of time to investigate and remedy the contamination.

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Because  our  products  and  product  candidates  are  manufactured  specifically  for  each  individual  patient,  we  will  be  required  to
maintain a chain of identity and chain of custody with respect to the patient’s tumor as it moves from the patient to the manufacturing
facility, through the manufacturing process, and back to the patient. Maintaining such chains of identity and chains of custody is difficult
and complex, and failure to do so could result in adverse patient outcomes, loss of product, or regulatory action including withdrawal of
our products from the market. Further, as product candidates are developed through preclinical studies to late-stage clinical trials towards
approval  and  commercialization,  it  is  common  that  various  aspects  of  the  development  program,  such  as  manufacturing  methods,  are
altered along the way to optimize processes and results. Such changes carry the risk that they will not achieve these intended objectives,
and  any  of  these  changes  could  cause  our  product  candidates  to  perform  differently  and  affect  the  results  of  planned  clinical  trials  or
other future clinical trials or otherwise necessitate the conduct of additional studies.

Currently, our products and product candidates are manufactured using processes developed or modified by us or by our third-
party research institution collaborators that we may not intend to use for more advanced clinical trials or commercialization. Gen 2 is the
FDA-approved, commercial manufacturing process for Amtagvi™ and has been selected for all ongoing and future company-sponsored
clinical trials. Although we believe Gen 2 is a commercially viable process, there are risks associated with scaling to the level required
for  advanced  clinical  trials  or  commercialization,  including,  among  others,  cost  overruns,  potential  problems  with  process  scale-up,
process reproducibility, stability issues, lot consistency, and timely availability of raw materials. As a result of these challenges, we may
experience delays in our clinical development and/or commercialization plans. Furthermore, we may ultimately be unable to reduce the
cost  of  goods  for  our  product  candidates  to  levels  that  will  allow  for  an  attractive  return  on  investment  if  and  when  those  product
candidates are commercialized.

In  May  2019  we  entered  into  a  lease  agreement  to  build  a  commercial-scale  manufacturing  facility,  the  iCTC,  in  Philadelphia,
Pennsylvania  for  commercial  and  clinical  production  of  autologous  TIL  products,  including  our  product  Amtagvi™.  The  iCTC  is
currently manufacturing TIL for our ongoing clinical trials and preparing to provide commercial supply upon potential BLA approval; as
of  the  end  of  2021,  we  had  completed  the  commissioning  activities  at  the  iCTC  and  successfully  initiated  manufacturing  of  clinical
batches  of  lifileucel  and  LN-145,  representing  our  first  internally  manufactured  TIL  product,  as  we  continue  our  launch  readiness
activities to supply commercial TIL upon potential BLA approval. We expect our manufacturing facility will provide us with enhanced
control of material supply for both clinical trials and the commercial market, enable the more rapid implementation of process changes,
and allow for better long-term margins. We have built capacity to potentially treat thousands of cancer patients annually. However, we
may  not  be  successful  in  finalizing  the  development  of  our  own  manufacturing  facility  or  capability.  We  may  establish  multiple
manufacturing facilities as we expand our commercial footprint to multiple geographies, which may lead to regulatory delays or prove
costly.  Even  if  we  are  successful,  our  manufacturing  capabilities  could  be  affected  by  cost-overruns,  unexpected  delays,  equipment
failures, labor shortages, natural disasters, power failures, and numerous other factors that could prevent us from realizing the intended
benefits of our manufacturing strategy and have a material adverse effect on our business.

The  manufacture  of  cell  therapy  products  requires  significant  expertise  and  capital  investment,  including  the  development  of
advanced  manufacturing  techniques  and  process  controls.  Manufacturers  of  cell  therapy  products  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,  local  and  foreign  regulations.  The  FDA  may  take  a  restrictive  approach  when  regulating  cell  therapy
manufacturing facilities that could result in delays, product release challenges, shortages, or capacity restraints.

Our  current  manufacturing  strategy  involves  the  use  of  CMOs  in  conjunction  with  the  manufacturing  capacity  at  the  iCTC.
Currently our products and product candidates are also manufactured by WuXi and previously by Moffitt. Additionally, we partner with
American Red Cross, or ARC, to leverage their GMP approved facilities and operate our own facility to produce feeder cells for TIL
manufacturing. The process for manufacturing TIL is heavily reliant on the supply of biological raw materials and maintaining a GMP
facility capable of supplying our manufacturing facilities with quality cells to make the final product. There are only a limited number of
these  types  of  facilities  and  sources  for  the  materials  needed  by  TIL  cell  therapy  manufacturers.  The  iCTC  and  our  CMO  are  aseptic
manufacturing  facilities  that  operate  clean  rooms  for  the  production  of  TIL  cell  therapies,  which  are  subject  to  contamination,  labor,
occupational safety, regulatory, climate, and environmental risks that could interfere with production. Any problems or delays we or our
CMOs experience in preparing for commercial scale manufacturing of a product, product candidate, or component thereof may result, in
the case of product candidates, a delay in the FDA approval thereof or, in the case of products, may impair our ability to manufacture
commercial  quantities  or  such  quantities  at  an  acceptable  cost,  which  could  result  in  the  delay,  prevention,  or  impairment  of  clinical
development of our product candidates and commercialization of our products and could adversely affect our business. Furthermore, if
we or our commercial manufacturers fail to deliver the required commercial quantities of our product candidates on a timely basis and at
reasonable costs, we would likely be unable to meet demand for our products and we would lose potential revenues.

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Moreover,  should  we  continue  to  use  CMOs,  we  may  not  succeed  in  maintaining  our  relationships  with  our  current  CMO  or
establishing relationships with additional or alternative CMOs. Our products and 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. If our CMOs should cease manufacturing for us, we
would  experience  delays  in  obtaining  sufficient  quantities  of  our  product  candidates  for  clinical  trials  and,  if  approved,  commercial
supply. Further, our CMOs may breach, terminate, or not renew these agreements. If we were to need to find alternative manufacturing
facilities  it  would  significantly  impact  our  ability  to  develop,  obtain  regulatory  approval  for  or  market  our  product  candidates,  if
approved.  The  commercial  terms  of  any  new  arrangement  could  be  less  favorable  than  our  existing  arrangements  and  the  expenses
relating to the transfer of necessary technology and processes could be significant.

Reliance on third-party manufacturers entails exposure to risks to which we would not be subject if we manufactured the product

candidate ourselves, including:

● inability to negotiate manufacturing and quality agreements with third parties under commercially reasonable terms;
● reduced  day-to-day  control  over  the  manufacturing  process  for  our  product  candidates  as  a  result  of  using  third-party

manufacturers for all aspects of manufacturing activities;

● reduced control over the protection of our trade secrets and know-how from misappropriation or inadvertent disclosure;

● termination  or  nonrenewal  of  manufacturing  agreements  with  third  parties  in  a  manner  or  at  a  time  that  may  be  costly  or

damaging to us or result in delays in the development or commercialization of our products and/or product candidates;

● disruptions to the operations of our third-party manufacturers or suppliers caused by conditions unrelated to our business or

operations, including the bankruptcy of the manufacturer or supplier.

● international or multi-national activities that are related to business activities outside of our scope, but may have an impact on
a CMO’s ability to conduct business in a manner consistent with governmental or our regulatory and ethical standards; and

● our  ability  to  synchronize  operations  and  standards  to  ensure  that  all  aspects  of  manufacturing  are  consistent  without

deviations across facilities.

In addition, the manufacturing process and facilities for any products that we may develop at the iCTC and or our CMOs is subject
to  FDA  and  foreign  regulatory  authority  approval  processes,  and  we  or  our  CMOs  will  need  to  meet  all  applicable  FDA  and  foreign
regulatory  authority  requirements,  including  cGMP,  on  an  ongoing  basis.  The  cGMP  requirements  include  quality  control,  quality
assurance,  and  the  maintenance  of  records  and  documentation.  The  FDA  and  other  regulatory  authorities  enforce  these  requirements
through facility inspections. Manufacturing facilities must submit to pre-approval inspections by the FDA that will be conducted after we
submit our marketing applications, including our BLAs, to the FDA. Manufacturers are also subject to continuing regulatory oversight by
FDA and other regulatory authorities, including inspections following marketing approval. Further, we, in cooperation with our CMOs,
must supply all necessary chemistry, manufacturing, and control documentation for a pre-approval inspection in support of a BLA on a
timely basis. There is no guarantee that we or our CMOs will be able to successfully pass all aspects of a pre-approval inspection by the
FDA or other foreign regulatory authorities.

Our manufacturing facilities or our CMOs’ manufacturing facilities may be unable to comply with our specifications, cGMP, 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 product candidate that may not be
detectable in final product testing. If we or our CMOs are unable to reliably produce products to specifications acceptable to the FDA or
other regulatory authorities, or in accordance with the strict regulatory requirements, we may not obtain or maintain the approvals we
need  to  commercialize  such  products.  Even  after  obtaining  regulatory  approval,  in  the  case  of  our  products,  and  even  if  we  obtain
regulatory approval, in the case of our product candidates, there is no assurance that either we or our CMOs will be able to manufacture
the approved product to specifications acceptable to the FDA or other regulatory authorities, to produce it in sufficient quantities to meet
the requirements for the potential launch of the product, or to meet potential future demand. Deviations from manufacturing requirements
may further 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 us or third parties with whom we contract could materially harm our business.

Even  to  the  extent  we  use  and  continue  to  use  CMOs,  we  are  ultimately  responsible  for  the  manufacture  of  our  products  and
product candidates. A failure to comply with these requirements may result in regulatory enforcement actions against our manufacturers
or us, including fines and civil and criminal penalties, which could result in imprisonment, suspension or restrictions of production,

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injunctions,  delay  or  denial  of  product  approval  or  supplements  to  approved  products,  clinical  holds  or  termination  of  clinical  trials,
warning  or  untitled  letters,  regulatory  authority  communications  warning  the  public  about  safety  issues  with  the  biologic,  refusal  to
permit the import or export of the products, product seizure, detention, or recall, operating restrictions, suits under the civil False Claims
Act, corporate integrity agreements, consent decrees, or withdrawal of product approval.

Any of these challenges could delay completion of clinical trials, require bridging clinical trials or the repetition of one or more
clinical trials, increase clinical trial costs, delay approval of our product candidate, impair commercialization efforts, increase our cost of
goods, and have an adverse effect on our business, financial condition, results of operations, and growth prospects.

Cell-based  therapies  and  biologics  rely  on  the  availability  of  biological  raw  materials  (including  live  cells),  chemicals  and
agents used for manufacturing, reagents, specialized equipment, and other specialty materials, which may not be available to us on
acceptable terms or at all. For each of these we rely or may rely on treatment sites, limited manufacturers, sole source vendors or a
limited number of vendors, which could impair our ability to manufacture and supply our products.

Manufacturing our products and product candidates requires live cells among other biological raw materials, chemicals and agents
used for manufacturing. Many reagents, which are substances used in our manufacturing processes to bring about chemical or biological
reactions, and other specialty materials and equipment, some of which are manufactured or supplied by small companies with limited
resources and experience to support commercial biologics production. We currently depend on a limited number of vendors for certain
materials  and  equipment  used  in  the  manufacture  of  our  product  candidates.  Some  of  these  suppliers  may  not  have  the  capacity  to
support clinical trials and commercial products manufactured under cGMP by biopharmaceutical firms or may otherwise be ill-equipped
to support our needs. We also do not have supply contracts with many of these suppliers and may not be able to obtain supply contracts
with  them  on  acceptable  terms  or  at  all.  Accordingly,  we  may  experience  delays  in  receiving  key  materials  and  equipment  to  support
clinical or commercial manufacturing.

For  each  of  these  biological  raw  materials  (including  live  cells),  chemicals  and  agents  used  for  manufacturing,  reagents,
equipment, and materials, we rely and may in the future rely on treatment sites, limited manufacturers, sole source vendors or a limited
number of vendors. An inability to continue to source product from any of these suppliers, which could be due to a number of issues,
including regulatory actions or requirements affecting the supplier, adverse financial or other strategic developments experienced by a
supplier, labor disputes or shortages, unexpected demands, or quality issues, could adversely affect our ability to satisfy demand for our
product candidates, which could adversely and materially affect our product sales and operating results or our ability to conduct clinical
trials, either of which could significantly harm our business.

As we continue to develop and scale our manufacturing process, we expect that we will need to obtain rights to and supplies of
certain materials and equipment to be used as part of that process. We may not be able to obtain rights to such materials on commercially
reasonable terms, or at all, and if we are unable to alter our process in a commercially viable manner to avoid the use of such materials or
find a suitable substitute, it would have a material adverse effect on our business. Even if we are able to alter our process so as to use
other materials or equipment, such a change may lead to a delay in our clinical development and/or commercialization plans. If such a
change occurs for product candidate that is already in clinical testing, the change may require us to perform both ex vivo comparability
studies and to collect additional data from patients prior to undertaking more advanced clinical trials.

Because  our  current  products  represent,  and  our  other  potential  product  candidates  will  represent  novel  approaches  to  the
treatment  of  disease,  there  are  many  uncertainties  regarding  the  development,  the  market  acceptance,  third-party  reimbursement
coverage and the commercial potential of our product candidates.

Human immunotherapy products are a new category of therapeutics. Because this is a relatively new and expanding area of novel
therapeutic interventions, there are many uncertainties related to development, marketing, reimbursement, and the commercial potential
for our product candidates. There can be no assurance as to the length of the clinical trial period, the number of patients the FDA will
require to be enrolled in the clinical trials in order to establish the safety, efficacy, purity and potency of immunotherapy products, or that
the data generated in these clinical trials will be acceptable to the FDA to support marketing approval. The FDA may take longer than
usual  to  come  to  a  decision  on  any  BLA  that  we  submit  and  may  ultimately  determine  that  there  is  not  enough  data,  information,  or
experience  with  our  product  candidates  to  support  an  approval  decision.  The  FDA  may  also  require  that  we  conduct  additional  post-
marketing  studies  or  implement  risk  management  programs,  such  as  REMS  until  more  experience  with  our  product  candidates  is
obtained. Finally, after increased usage, we may find that our product candidates do not have the intended effect or have unanticipated
side effects, potentially jeopardizing initial or continuing regulatory approval and commercial prospects.

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We  may  also  find  that  the  manufacture  of  our  product  candidates  is  more  difficult  than  anticipated,  resulting  in  an  inability  to
produce a sufficient amount of our product candidates for our clinical trials or, if approved, commercial supply. Moreover, because of the
complexity  and  novelty  of  our  manufacturing  process,  there  are  only  a  limited  number  of  manufacturers  who  have  the  capability  of
producing our product candidates. Should any of our contract manufacturers no longer produce our product candidates, it may take us
significant time to find a replacement, if we are able to find a replacement at all.

There is no assurance that the approaches offered by our products will gain broad acceptance among doctors or patients or that
governmental  agencies  or  third-party  medical  insurers  will  be  willing  to  provide  reimbursement  coverage  for  proposed  product
candidates. Moreover, we do not have verifiable internal marketing data regarding the potential size of the commercial market for our
product candidates, nor have we obtained current independent marketing surveys to verify the potential size of the commercial markets
for  our  current  product  candidates  or  any  future  product  candidates.  Since  our  current  product  candidates  and  any  future  product
candidates  will  represent  novel  approaches  to  treating  various  conditions,  it  may  be  difficult,  in  any  event,  to  accurately  estimate  the
potential revenues from these product candidates. Accordingly, we may spend significant capital trying to obtain approval for product
candidates that have an uncertain commercial market. The market for any products that we successfully develop will also depend on the
cost of the product.

Cell based therapies may take longer to attain insurance coverage, and although we may apply for special government programs
and  prepare  the  market  for  product  approval,  there  is  no  way  to  ensure  that  healthcare  providers,  insurance  companies,  or  other  third
parties will reimburse our product at an expeditious rate. Even if we obtain insurance coverage for our product from payors, coverage at
treatment  centers  will  require  payment  for  the  total  cost  of  care  which  involves  surgery,  conditioning  chemotherapy,  as  well  as  other
staffing  and  hospitalization  needs.  This  will  require  coordination  between  authorized  treatment  centers  and  other  payors  including
government payors that may only cover a portion of charges. If our treatment centers do not successfully obtain coverage in time, there
may be a slow uptake or variable or limited access, if at all, to our therapies.

We do not yet have sufficient information to reliably estimate what it will cost to commercially manufacture our current product
candidates,  and  the  actual  cost  to  manufacture  these  products  could  materially  and  adversely  affect  the  commercial  viability  of  these
products. Our goal is to reduce the cost of manufacturing and providing our therapies. However, unless we can reduce those costs to an
acceptable  amount,  we  may  never  be  able  to  develop  a  commercially  viable  product.  If  we  do  not  successfully  develop  and
commercialize  products  based  upon  our  approach  or  find  suitable  and  economical  sources  for  materials  used  in  the  production  of  our
products, we will not become profitable, which would materially and adversely affect the value of our common stock.

Our  TIL  cell  therapies  and  our  other  therapies  may  be  provided  to  patients  in  combination  with  other  agents  provided  by  third
parties. The cost of such combination therapy may increase the overall cost of therapy and may result in issues regarding the allocation of
reimbursements between our therapy and the other agents, all of which may affect our ability to obtain reimbursement coverage for the
combination therapy from governmental or private third-party medical insurers.

No assurance can be given that the Gen 2 manufacturing process or other processes we have selected will be FDA-compliant

or more efficient and will lower the cost to manufacture TIL products.

We have developed and are developing improved methods for generating and selecting autologous TILs, and methods for large-
scale production of autologous TILs that are in accord with current cGMP procedures. We have developed a new and more efficient TIL
manufacturing process that we believe can be more efficient and cost effective, and in a more automated manner than previous processes.
The production and control of the physical and/or chemical attributes of our products in a cGMP facility is subject to many uncertainties
and  difficulties.  As  a  novel  therapy,  TIL  manufacturing  and  product  release  is  complex  and  must  evolve  with  both  industry-wide
autologous cell therapy challenges and new regulatory requirements that may result in delays and unexpected denials. We have never
manufactured our adoptive cell therapy product candidate on a commercial scale, nor have our partners. As a result, we cannot give any
assurance that the Gen 2 process or any future process that we select will be a manufacturing process that can produce our products in
compliance  with  the  applicable  regulatory  requirements,  at  a  cost  or  in  quantities  necessary  to  make  them  commercially  viable.
Moreover,  we  and  our  third-party  manufacturers  will  have  to  continually  adhere  to  current  cGMP  regulations  enforced  by  the  FDA
through  its  facilities  inspection  program.  If  our  facilities  or  any  of  the  facilities  of  these  manufacturers  cannot  demonstrate  adequate
assurance of compliance with FDA standards during a pre-approval inspection, the FDA approval of our products will not be granted. In
complying  with  cGMP  and  foreign  regulatory  requirements,  we  and  any  of  our  third-party  manufacturers  will  be  obligated  to  expend
time, money and effort in production, record-keeping and quality control to assure that our products meet applicable specifications and
other requirements. If we or any of our third-party manufacturers fail to comply with these requirements, we may be subject to regulatory
action. No assurance can be given that we will be able to develop such a manufacturing process, or that our partners will thereafter be
able to establish and operate such a production facility.

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Our business entails a significant risk of product liability. If product liability lawsuits are brought against us, whether or not
meritorious,  we  may  incur  substantial  liabilities  and  may  be  required  to  limit  or  halt  commercialization  of  our  products  and/or
product candidates.

We face an inherent risk of product liability as a result of the clinical testing and manufacture of our product candidates for human
trials, and we currently face an even greater risk as we commercialize products and engage in the quality testing and release of products.
For example, we may be sued if our products and/or product candidates cause, are perceived, or alleged to cause injury or are found to be
otherwise  unsuitable  during  clinical  testing,  manufacturing,  marketing,  or  sale,  whether  or  not  trial  participants  or  patients  are
predisposed to adverse outcomes. Furthermore, if physicians and/or hospitals are not sufficiently trained in the use of our products or
therapies, whether clinical or commercialized, they may misuse or ineffectively use our products or related products for our therapies,
which  may  result  in  unsatisfactory  patient  outcomes  or  patient  injury.  Any  such  product  liability  claims  may  include  allegations  of
defects  in  manufacturing,  defects  in  design,  defects  in  quality  control  measures,  a  failure  to  warn  of  dangers  inherent  in  the  product,
negligence,  strict  liability,  and/or  a  breach  of  warranties.  Claims  could  also  be  asserted  under  state  consumer  protection  acts.  Large
judgements  have  also  been  awarded  in  class  action  lawsuits  based  on  therapeutics  that  had  unanticipated  side  effects.  If  we  cannot
successfully  defend  ourselves  against  product  liability  claims,  we  may  incur  substantial  liabilities  or  be  required  to  limit  or  halt
commercialization  of  our  products  and/or  product  candidates.  Even  a  successful  defense  would  require  significant  financial  and
management resources. Regardless of the merits or eventual outcome, liability claims may result in:

● decreased or interrupted demand for our products and/or product candidates;
● injury to our reputation;
● withdrawal of clinical trial participants or sites and potential termination of clinical trial sites or entire clinical programs;
● initiation  of  investigations  by  regulators  (including  investigation  of  the  safety  and  effectiveness  of  our  products,  our
manufacturing  processes  and  facilities,  or  our  marketing  programs),  refusal  to  approve  marketing  applications  or
supplements, warnings, and withdrawal or other limitations on product approvals;

● costs to prepare for and defend the related litigation;
● a diversion of management’s time and our resources;
● substantial monetary awards to clinical trial participants or patients;
● product recalls, withdrawals, or restrictions on labeling, marketing, or promotions;
● loss of revenue;
● significant negative media attention;
● decrease in the price of our stock and overall value of our company;
● exhaustion of our available insurance coverage and our capital resources; and/or
● the delay or inability to commercialize our product candidates or achieve adequate revenue from our products.

Our  inability  to  obtain  sufficient  product  liability  insurance  at  an  acceptable  cost  and/or  scope  of  coverage  to  protect  against
potential  product  liability  claims  could  prevent  or  inhibit  the  commercialization  of  products  we  develop,  alone  or  with  corporate
collaborators. Our insurance policies may also have various exclusions and/or deductibles, and we may be subject to a product liability or
bodily injury claim for which we have no coverage or for which the insurance carrier disputes the scope of coverage. Furthermore, any
product liability claim brought against us, with or without merit, could result in the increase of our product liability insurance rates or the
inability to secure coverage in the future. Although we currently have product liability insurance that we believe is appropriate for our
stage of development, we may need to obtain higher levels to cover marketing any of our approved products.  In addition, we may have
to  pay  amounts  awarded  by  a  court  or  negotiated  in  a  settlement  that  exceed  our  coverage  limitations  or  that  are  not  covered  by  our
insurance, and we may not have, or be able to obtain, sufficient capital to pay such amounts. We anticipate that we will need to increase
our insurance coverage as we commence additional clinical trials and as we commercialize product candidates that have been or may be
approved.  If  we  determine  that  it  is  prudent  to  increase  our  product  liability  coverage,  we  may  be  unable  to  obtain  such  increased
coverage on acceptable terms, or at all. The market for insurance coverage is increasingly expensive, and the costs of insurance coverage
will increase as our clinical programs and commercialization efforts increase in size. Furthermore, even if our agreements with corporate
collaborators entitle us to indemnification against product liability losses, such indemnification may not be available or adequate should
any claim arise.

Any claims against us, regardless of their merit, could severely harm our financial condition, strain our management and other
resources, adversely affect or eliminate the prospects for commercialization or sales of a product that is the subject of any such claim,
and could have a material adverse effect on our business, financial condition, results of operations, and growth prospects.

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We face significant competition from other biotechnology and pharmaceutical companies and from non-profit institutions.

Competition in the field of cancer therapy is intense and is accentuated by the rapid pace of technological development. Research
and discoveries by others may result in breakthroughs which may render our products obsolete even before they generate any revenue.
There  are  products  that  are  approved  and  currently  under  development  by  others  that  could  compete  with  the  products  that  we  are
developing.  Many  of  our  potential  competitors  have  substantially  greater  research  and  development  capabilities  and  approval,
manufacturing, marketing, financial and managerial resources and experience than we do. Our competitors may:

● develop safer, more convenient or more effective immunotherapies and other therapeutic products;
● develop therapies that are less expensive or have better reimbursement from private or public payors;
● reach the market more rapidly, reducing the potential sales of our products; or
● establish superior proprietary positions.

Due  to  the  promising  clinical  therapeutic  effect  of  competitor  therapies  in  clinical  exploratory  trials,  we  anticipate  substantial
direct  competition  from  other  organizations  developing  advanced  T-cell  therapies  targeting  patients  who  have  received  prior  anti-PD-
1/PD-L1 therapies. In particular, we expect to compete with other new therapies for our lead indications developed by companies such as
Agenus,  BeyondSpring,  Bristol-Myers  Squibb,  Merck,  Nektar  Therapeutics,  Checkmate  Pharmaceuticals,  Daiichi  Sankyo,  Eisai,
Exelixis, Moderna, OncoSec Medical, Replimune, Regeneron Pharmaceuticals, Pfizer, and Genmab. We also may compete with other
TIL  cell  therapies  in  development  by  companies  such  as  Instil  Bio,  Achilles  Therapeutics,  KSQ  Therapeutics,  Obsidian  Therapeutics,
Immatics, TILT Biotherapeutics, WindMIL Therapeutics, GRIT Biotechnology, Lyell Immunopharma, Cellular Biomedicine Group, and
others. We also may compete with therapies based on genetically engineered T-cell receptors rendered reactive against tumor-associated
antigens prior to their administration to patients, as well as TIL cell therapies that are designed to be specific to neoantigens, including
products  developed  by  Adaptimmune  Therapeutics,  Alaunos  Therapeutics,  Intima  Bioscience,  Marker  Therapeutics,  Turnstone
Biologics,  Neogene,  and  others.  To  date,  these  technologies  have  been  primarily  applicable  to  hematologic  malignancies,  but  their
application in solid tumor indications may create competition with us. We may also face competition from immunotherapy treatments
offered  by  companies  such  as  Amgen,  AstraZeneca,  Bristol-Myers  Squibb,  Merck,  Pfizer,  Regeneron  Pharmaceuticals,  Roche,  and
BioNTech.  We  may  also  face  competition  from  novel  IL-2  treatments  in  development  by  Alkermes,  Werewolf,  Nektar  Therapeutics,
Merck,  Sanofi,  Neoleukin  Therapeutics  and  others.  Many  of  these  companies  and  our  other  current  and  potential  competitors  have
substantially greater research and development capabilities and financial, scientific, regulatory, manufacturing, marketing, sales, human
resources,  and  experience  than  we  do.  Many  of  our  competitors  have  several  therapeutic  products  that  have  already  been  developed,
approved and successfully commercialized, or are in the process of obtaining regulatory approval for their therapeutic products in the
U.S. and internationally. Our competitors may obtain regulatory approval for their products more rapidly than we may obtain approval
for ours, which could result in competitors establishing a strong market position before we are able to enter the market.

Universities  and  public  and  private  research  institutions  in  the  U.S.  and  Europe  are  also  potential  competitors.  For  example,  a
Phase 3 M14TIL clinical trial comparing TIL to standard ipilimumab in patients with metastatic melanoma is currently being conducted
in Europe by the Netherlands Cancer Institute, the Copenhagen County Herlev University Hospital, and the University of Manchester.
Results  from  the  M14TIL  clinical  trial  were  presented  at  the  European  Society  for  Medical  Oncology  Congress  in  September  2022.
While these universities and public and private research institutions primarily have educational objectives, they may develop proprietary
technologies that lead to other FDA approved therapies or that secure patent protection that we may need for the development of our
technologies and products.

Our lead product Amtagvi™ is an approved therapy for the treatment of metastatic melanoma and a candidate for the treatment of
other cancers. Currently, there are numerous companies that are developing various alternate treatments for melanoma and other cancers,
including patients that have progressed after prior treatment with checkpoint inhibitors and chemotherapy. Accordingly, Amtagvi™ faces
significant  competition  in  the  melanoma  and  other  cancer  treatment  space  from  multiple  companies.  Even  after  obtaining  regulatory
approval  for  Amtagvi™,  the  availability  and  price  of  our  competitors’  products  could  limit  the  demand  and  the  price  we  are  able  to
charge  for  our  therapies.  We  may  not  be  able  to  implement  our  business  plan  if  the  acceptance  of  our  products  is  inhibited  by  price
competition or the reluctance of physicians to switch from other methods of treatment to our product, or if physicians switch to other new
therapies, drugs or biologic products or choose to reserve our product for use in limited circumstances.

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

Our  projections  regarding  the  market  opportunities  for  our  products  and  product  candidates  may  not  be  accurate,  and  the

actual market for our products and product candidates may be smaller than we estimate.

Our projections of both the number of people who have the advanced cancers we are targeting as well as the subset of people with
metastatic  or  unresectable  cancers  and  who  have  the  potential  to  benefit  from  treatment  with  our  products  or  product  candidates  are
based on our beliefs and estimates. These estimates have been derived from a variety of sources, including scientific literature, surveys of
clinics, patient foundations, or market research by third parties, and may prove to be incorrect. Further, new studies or approvals of new
therapeutics may change the estimated incidence or prevalence of these cancers. The number of patients may turn out to be lower than
expected. Additionally, the potentially addressable patient population for our products and product candidates may be limited or may not
be  amenable  to  treatment  with  our  products  or  product  candidates  and  may  also  be  limited  by  the  cost  of  our  treatments  and  the
reimbursement  of  those  treatment  costs  by  third-party  payors.  For  instance,  we  expect  Amtagvi™  to  initially  target  a  small  patient
population  that  suffers  from  metastatic  melanoma.  Even  if  we  obtain  significant  market  share  for  our  products  or  product  candidates,
because  the  potential  target  populations  are  small,  we  may  never  achieve  profitability  without  obtaining  regulatory  approval  for
additional indications.

We may be unable to establish effective marketing and sales capabilities or enter into agreements with third parties to market
and sell our products and product candidates, if they are approved, and as a result, we may be unable to generate significant product
revenues.

We  currently  have  a  small  commercial  team  focused  on  our  commercial  strategy,  but  we  do  not  have  a  large  commercial
infrastructure for the marketing, sale, and distribution of biopharmaceutical products. In order to commercialize our products, we must
build our marketing, sales, and distribution capabilities or make arrangements with third parties to perform these services, which will
take  time  and  require  significant  financial  expenditures  and  we  may  not  be  successful  in  doing  so.  Even  if  we  are  able  to  effectively
establish a sales force and develop a marketing and sales infrastructure, our sales force and marketing teams may not be successful in
commercializing our current or future product candidates. To the extent we rely on third parties to commercialize any products for which
we obtain regulatory approval, we would have less control over their sales efforts, and could be held liable if they failed to comply with
applicable legal or regulatory requirements.

In addition to marketing our product, we will need to establish authorized treatment centers that will be able to obtain patients
from the broader community and provide access to our therapies. Even if we are able to obtain approval for a product candidate, we may
not be able to approve enough treatment centers for the provision of our product to a broad patient population. Additionally, certain areas
do not have hospitals with the facilities to safely administer our therapy. Accordingly, we may only be able to launch our products with a
limited number of treatment centers, which could ultimately reduce the uptake of our products. Although we have a team allocated to
authorize and monitor our treatment centers, substantial resources and investment from us and each treatment center may be required.
Additionally,  the  treatment  center  onboarding  process  can  be  complicated  and  requires  extensive  training,  technical  equipment,  and
coordination  of  processes.  Once  authorized,  treatment  centers  will  be  required  to  ensure  that  their  training,  facilities,  and  treatment
capabilities are adequately maintained.

We have limited prior experience in the marketing, sale, and distribution of biopharmaceutical products, and there are significant
risks  involved  in  the  building  and  managing  of  a  commercial  infrastructure.  The  establishment  and  development  of  commercial
capabilities, including a comprehensive healthcare compliance program, to market any products we may develop will be expensive and
time  consuming  and  could  delay  any  product  launch,  and  we  may  not  be  able  to  successfully  develop  this  capability.  We,  or  our
collaborators,  will  have  to  compete  with  other  pharmaceutical  and  biotechnology  companies  to  recruit,  hire,  train,  manage,  and  retain
marketing, sales and commercial support personnel. In the event we are unable to develop a commercial infrastructure, we may not be
able to commercialize our current or future product candidates, which would limit our ability to generate product revenues. Factors that
may inhibit our efforts to commercialize our current or future products and product candidates and generate significant product revenues
include:

● if  the  COVID-19  pandemic  continues  or  reoccurs  it  may  negatively  impact  our  ability  to  establish  commercial  operations,

educate and interact with healthcare professionals, and successfully launch our product on a timely basis;

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● the inability of sales personnel to obtain access to physicians or persuade adequate numbers of physicians to prescribe our

current or future product candidates;

● our inability to effectively oversee a geographically dispersed sales and marketing team;
● the costs and time associated with the initial and ongoing training of sales and marketing personnel on legal and regulatory

compliance matters and monitoring their actions;

● an inability to secure adequate coverage and reimbursement by government and private health plans;
● the clinical indications for which the products are approved and the claims that we may make for the products;
● limitations or warnings, including distribution or use restrictions, contained in the products’ approved labeling;
● any distribution and use restrictions imposed by the FDA or to which we agree as part of a mandatory REMS or voluntary

risk management plan;

● liability for sales or marketing personnel who fail to comply with the applicable legal and regulatory requirements;
● the lack of complementary products to be offered by sales personnel, which may put us at a competitive disadvantage relative

to companies with more extensive product lines; and

● unforeseen  costs  and  expenses  associated  with  creating  an  independent  sales  and  marketing  organization  or  engaging  a

contract sales organization.

If our products or product candidates do not achieve broad market acceptance, the revenues that we generate from their sales

will be limited.

Until the closing of the Proleukin® acquisition in May 2023, we had never commercialized a product candidate for any indication.
Even after our products and product candidates are approved by the appropriate regulatory authorities for marketing and sale, they may
not  gain  acceptance  among  physicians,  patients,  third-party  payors,  and  others  in  the  medical  community.  If  any  product  or  product
candidate for which we obtain regulatory approval does not gain an adequate level of market acceptance, we may not generate significant
product revenues or become profitable. Market acceptance of our products and product candidates by the medical community, patients,
and  third-party  payors  will  depend  on  a  number  of  factors,  some  of  which  are  beyond  our  control.  For  example,  physicians  are  often
reluctant to switch their patients and patients may be reluctant to switch from existing therapies even when new and potentially more
effective or safer treatments enter the market.

Efforts  to  educate  the  medical  community  and  third-party  payors  on  the  benefits  of  our  products  and  product  candidates  may
require significant resources and may not be successful. If any of our products or product candidates does not achieve an adequate level
of market acceptance, we may not generate significant revenues and we may not become profitable. The degree of market acceptance of
any of our products and product candidates will depend on a number of factors, including:

● the efficacy of our products and product candidates;
● the prevalence and severity of adverse events associated with such products or product candidates;
● the clinical indications for which the products are approved and the approved claims that we may make for the products;
● limitations  or  warnings  contained  in  the  approved  product’s  FDA-required  labeling,  including  potential  limitations  or

warnings for such products that may be more restrictive than other competitive products;

● changes in the standard of care for the targeted indications for such products and product candidates;
● the relative difficulty of administration of such products and product candidates;
● cost of treatment versus economic and clinical benefit in relation to alternative treatments or therapies;
● the  availability  of  adequate  coverage  or  reimbursement  by  third  parties,  such  as  insurance  companies  and  other  healthcare

payors, and by government healthcare programs, including Medicare and Medicaid;

● the extent and strength of our marketing and distribution of such products and product candidates;
● the safety, efficacy, and other potential advantages over, and availability of, alternative treatments already used or that may

later be approved for any of our intended indications;

● distribution and use restrictions imposed by the FDA with respect to such products and product candidates or to which we

agree as part of a mandatory risk evaluation and mitigation strategy or voluntary risk management plan;
● the timing of market introduction of such products and product candidates, as well as competitive products;
● our ability to offer such products and product candidates for sale at competitive prices;
● the willingness of the target patient population to try new therapies and of physicians to prescribe these therapies;
● the extent and strength of our third-party manufacturer and supplier support;
● the approval of other new products for the same indications;
● adverse publicity about the product or favorable publicity about competitive products; and

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● potential product liability claims.

Our efforts to educate the medical community and third-party payors on the benefits of our products and product candidates may
require  significant  resources  and  may  never  be  successful.  Even  if  the  medical  community  accepts  that  our  products  and  product
candidates  are  safe  and  effective  for  their  approved  indications,  physicians  and  patients  may  not  immediately  be  receptive  to  such
products or product candidates and may be slow to adopt them as an accepted treatment of the approved indications. If our current or
future products and product candidates are approved but do not achieve an adequate level of acceptance among physicians, patients, and
third-party payors, we may not generate meaningful revenues from our product candidates, and we may not become profitable.

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

The  enactment  of  the  BPCIA  created  an  abbreviated  pathway  for  the  approval  of  biosimilar  and  interchangeable  biological
products.  The  abbreviated  regulatory  pathway  establishes  legal  authority  for  the  FDA  to  review  and  approve  biosimilar  biologics,
including the possible designation of a biosimilar as “interchangeable” based on its similarity to an existing brand product. Under the
BPCIA, the FDA cannot make an approval of an application for a biosimilar product effective until 12 years after the original branded
product was approved under a BLA. Certain changes, however, 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  12-year  exclusivity
period.

Our products and product candidates may qualify for the BPCIA’s 12-year period of exclusivity. However, there is a risk that the
FDA  will  not  consider  our  products  and product  candidates  to  be  reference  products  for  competing  products,  potentially  creating  the
opportunity  for  biosimilar  competition  sooner  than  anticipated.  Additionally,  this  period  of  regulatory  exclusivity  does  not  block
companies pursuing regulatory approval via their own traditional BLA, rather than via the abbreviated pathway. Changes may also be
made to this exclusivity period as a result of future legislation as there has been ongoing efforts to reduce the period of exclusivity. Even
if we receive a period of BPCIA exclusivity for our first licensed product, if subsequent products do not include a modification to the
structure of the product that impacts safety, purity, or potency, we may not receive additional periods of exclusivity for those products.
Moreover,  the  extent  to  which  a  biosimilar,  once  approved,  will  be  substituted  for  any  one  of  our  reference  products  in  a  way  that  is
similar to traditional generic substitution for non-biological products is not yet clear, and will depend on a number of marketplace and
regulatory factors that are still developing. Medicare Part B encourages use of biosimilars by paying the provider the same percentage of
the reference product, average sale price, or ASP as a mark-up, regardless of which product is reimbursed. It is also possible that payors
will give reimbursement preference to biosimilars even over reference biologics absent a determination of interchangeability.

We will need to obtain FDA approval of any proposed proprietary branded product names, and any failure or delay associated

with such approval may adversely affect our business.

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

As a condition of approval, the FDA may require that we implement various post-marketing requirements and conduct post-
marketing  studies,  any  of  which  would  require  a  substantial  investment  of  time,  effort,  and  money,  and  which  may  limit  our
commercial prospects.

As a condition of biologic licensing, the FDA is authorized to require that sponsors of approved BLAs implement various post-
market  requirements,  including  REMS  and  Phase  4  studies.  For  example,  we  reached  an  agreement  with  the  FDA  regarding  a
confirmatory trial to support full approval of lifileucel in post-anti-PD-1 advanced melanoma, which we refer to as TILVANCE-301.   We
began  startup  activities  for  the  randomized  Phase  3  TILVANCE-301  trial  in  the  fourth  quarter  of  2022.  If  we  receive  approval  of  our
product  candidates,  the  FDA  may  determine  that  similar  or  additional  post-approval  requirements  are  necessary  to  ensure  that  our
product candidates are safe, pure, and potent. To the extent that we are required to establish and implement any post-approval

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requirements, we will likely need to invest a significant amount of time, effort, and money. Such post-approval requirements may also
limit the commercial prospects of our products and product candidates.

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

Our  operations  are  dependent  upon  the  services  of  our  executives  and  our  employees  who  are  engaged  in  research  and
development.  The  loss  of  the  services  of  our  executive  officers  or  senior  research  personnel  could  delay  our  product  development
programs and our research and development efforts. In order to develop our business in accordance with our business plan, we will have
to hire additional qualified personnel, including in the areas of research, manufacturing, clinical trials management, regulatory affairs,
and sales and marketing. We are continuing our efforts to recruit and hire the necessary employees to support our planned operations in
the near term.

For  example,  we  continue  to  recruit  a  new  Chief  Executive  Officer.  However,  competition  for  qualified  employees  among
companies in the biotechnology and biopharmaceutical industry is intense, and no assurance can be given that we will be able attract,
hire,  retain  and  motivate  the  highly  skilled  employees  that  we  need.  Future  growth  will  impose  significant  added  responsibilities  on
members of management, including:

● identifying, recruiting, integrating, maintaining, and motivating additional employees;
● managing  our  internal  development  efforts  effectively,  including  the  clinical  and  FDA  review  process  for  our  product

candidates, while complying with our contractual obligations to contractors and other third parties; and

● improving our operational, financial and management controls, reporting systems, and procedures.

Our future financial performance and our ability to commercialize our product candidates will depend, in part, on our ability to
effectively manage any future growth, and our management may also have to divert a disproportionate amount of its attention away from
day-to-day activities in order to devote a substantial amount of time to managing these growth activities.

We  currently  rely,  and  for  the  foreseeable  future  will  continue  to  rely,  in  substantial  part  on  certain  independent  organizations,
advisors  and  consultants  to  provide  certain  services.  There  can  be  no  assurance  that  the  services  of  these  independent  organizations,
advisors and consultants will continue to be available to us on a timely basis when needed, or that we can find qualified replacements. In
addition,  if  we  are  unable  to  effectively  manage  our  outsourced  activities  or  if  the  quality,  compliance  or  accuracy  of  the  services
provided by consultants is compromised for any reason, our clinical trials may be extended, delayed, or terminated, and we may not be
able to obtain regulatory approval of our product candidates or otherwise advance our business. There can be no assurance that we will
be able to manage our existing consultants or find other competent outside contractors and consultants on economically reasonable terms,
if at all.

If we are not able to effectively expand our organization by hiring new employees and expanding our groups of consultants and
contractors,  we  may  not  be  able  to  successfully  implement  the  tasks  necessary  to  further  develop  and  commercialize  our  product
candidates and, accordingly, may not achieve our research, development, and commercialization goals on a timely basis, or at all.

We  may  rely  on  third  parties  to  perform  many  essential  services  for  any  products  that  we  commercialize,  including  services
related to distribution, government price reporting, customer service, accounts receivable management, cash collection, and adverse
event reporting. If these third parties fail to perform as expected or to comply with legal and regulatory requirements, our ability to
commercialize our current or future products will be significantly impacted and we may be subject to regulatory sanctions.

We may retain third-party service providers to perform a variety of functions related to the sale and distribution of our current or
future  products,  key  aspects  of  which  will  be  out  of  our  direct  control.  These  service  providers  may  provide  key  services  related  to
distribution,  customer  service,  accounts  receivable  management,  and  cash  collection.  If  we  retain  a  service  provider,  we  would
substantially rely on it as well as other third-party providers that perform services for us, including entrusting our inventories of products
to their care and handling. If these third-party service providers fail to comply with applicable laws and regulations, fail to meet expected
deadlines,  or  otherwise  do  not  carry  out  their  contractual  duties  to  us,  or  encounter  physical  or  natural  damage  at  their  facilities,  our
ability to deliver product to meet commercial demand would be significantly impaired and we may be subject to regulatory enforcement
action.

In  addition,  we  may  engage  third  parties  to  perform  various  other  services  for  us  relating  to  adverse  event  reporting,  safety
database  management,  fulfillment  of  requests  for  medical  information  regarding  our  product  candidates  and  related  services.  If  the
quality or accuracy of the data maintained by these service providers is insufficient, or these third parties otherwise fail to comply with
regulatory requirements related to adverse event reporting, we could be subject to regulatory sanctions.

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Additionally,  we  may  contract  with  a  third-party  to  calculate  and  report  pricing  information  mandated  by  various  government
programs. If a third party fails to timely report or adjust prices as required or errs in calculating government pricing information from
transactional  data  in  our  financial  records,  it  could  impact  our  discount  and  rebate  liability,  and  potentially  subject  us  to  regulatory
sanctions or False Claims Act lawsuits.

We may be unable to successfully or sufficiently expand our manufacturing capacity to meet demand for our products.

As noted above, we have never manufactured our adoptive cell therapy product candidates on a commercial scale, nor have our
partners. We anticipate expanding manufacturing capacity at our iCTC facility and/or at our contract manufacturer, WuXi. Scale-up of
manufacturing may require additional validation studies, including capacity demonstration and/or comparability studies, each of which
are subject to FDA review, potential inspection, and approval. Moreover, current geopolitical tensions with China may impact our ability
to expand manufacturing capacity at our contract manufacturer, WuXi. Recently, the Biden administration has signed multiple executive
orders  regarding  China.  One  particular  executive  order  titled  Advancing  Biotechnology  and  Biomanufacturing  Innovation  for  a
Sustainable, Safe, and Secure American Bioeconomy signed on September 12, 2022 will likely impact the pharmaceutical industry to
encourage U.S. domestic manufacturing of pharmaceutical products. Additionally, there have been Congressional legislative proposals,
such as the recent bill titled the Biosecure Act, to discourage contracting with Chinese companies on the development or manufacturing
of  pharmaceutical  products.  Finally,  in  February  2024,  the  chair  and  ranking  member  of  the  House  Select  Committee  on  the  Chinese
Communist  Party,  Representatives  Mike  Gallagher  and  Raja  Krishnamoorthi,  respectively,  along  with  Senators  Gary  Peters  and  Bill
Haggerty  sent  a  letter  to  the  Biden  administration  requesting  that  both  WuXi  AppTec  Co.,  Ltd.,  WuXi’s  parent  company,  and  the
affiliated WuXi Biologics be added to the Department of Defense’s Chinese Military Companies List (1260H list), the Department of
Commerce’s  Bureau  of  Industry  and  Security  Entity  List,  and  the  Department  of  Treasury’s  Non-SDN  Chinese  Military-Industrial
Complex Companies List. While the Biden administration has yet to take action on this letter, adding either or both previously mentioned
WuXi entities on any or all of the aforementioned lists could materially impact our MSA with WuXi.

Regardless, any expansion of our manufacturing capability will also require us to invest substantial additional funds to hire and
retain  the  technical  personnel  who  have  the  necessary  manufacturing  experience.  As  a  result,  we  may  not  be  able  to  successfully  or
sufficiently increase the manufacturing capacity for our product candidates or modify our manufacturing processes. If we are unable to
successfully  increase  the  manufacturing  capacity  for  a  product  candidate  (as  a  result  of  lack  of  approval  from,  or  capacity  limitations
imposed by, the FDA, or otherwise), the resulting capacity limitations could have a material adverse effect on our results of operations
and  financial  condition.  In  addition,  if  we  are  unable  to  successfully  or  sufficiently  increase  the  manufacturing  capacity  at  the  iCTC
facility to meet demand in a timely or economic manner, or at all, we may be dependent upon the performance and capacity of third-party
manufacturers.  Accordingly,  we  face  risks  of  capacity  limitations  of,  difficulties  with,  increased  costs  of,  and  interruptions  in
performance by third-party manufacturers, the occurrence of which could negatively impact the availability, launch, and/or sales of our
products in the future, as well as on our results of operations and financial condition.

Risks Related to the Development of Our Product Candidates

We  depend  on  the  success  of  our  product  candidates  and  cannot  guarantee  that  these  product  candidates  will  successfully

complete development, receive regulatory approval, or be successfully commercialized.

We currently have two products approved for commercial sale. We have invested a significant portion of our efforts and financial
resources in the development of our current product and/ or product candidates, including Amtagvi™, LN-145, IOV-4001, IOV-2001,
and  IOV-3001,  and  expect  that  we  will  continue  to  invest  heavily  in  our  current  product  candidates,  as  well  as  in  any  future  product
candidates we may develop. Our business depends on the successful development and commercialization of our product candidates. Our
ability to generate revenues in the future is substantially dependent on our ability to develop, obtain regulatory approval for, and then
successfully  commercialize  our  product  candidates.  We  currently  generate  no  revenue  from  the  sale  of  any  products  that  are  in
development, and we may never be able to develop or commercialize these potential products.

Our  product  candidates  will  require  additional  clinical  and  non-clinical  development,  regulatory  approval,  commercial
manufacturing arrangements, establishment of a commercial organization, significant marketing efforts, and further investment before we
generate any revenue from product sales. We cannot assure you that we will meet our timelines for our current or future clinical trials,
which  may  be  delayed  or  not  completed  for  a  number  of  reasons,  including  the  negative  impact  of  the  COVID-19  pandemic.
Additionally, the costs associated with development of cell therapy products may be significant due to the length of treatment and the
supportive therapies provided to the patient during the treatment process. Supportive therapies may impact costs and patient viability and
may potentially limit availability.

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We are not permitted to market or promote any of our product candidates before we receive regulatory approval from the FDA or
comparable  foreign  regulatory  authorities,  and  we  may  never  receive  such  regulatory  approval  for  many  of  our  product  candidates  or
regulatory approval that will allow us to successfully commercialize our product candidates. If we do not receive FDA approval with the
necessary conditions to allow successful commercialization, and then successfully commercialize our product candidates, we will not be
able to generate revenue from those product candidates in the U.S. in the foreseeable future, or at all. Any significant delays in obtaining
approval for and commercializing our product candidates will have a material adverse impact on our business and financial condition.

Our products rely on coordination and collaboration with treatment centers that perform surgical procedures, obtain and provide
lymphodepleting chemotherapy, and deliver other care to patients that are often in poor health as a result of the latter stages of cancer.
This coordination of care is complicated in both the clinical trial setting and the commercial setting. Our treatment centers may not be
able to obtain necessary supplies, such as lymphodepleting chemotherapy agents, because of shortages. If commercialized, our products
will rely heavily on our ability to train centers and the centers’ ability to choose suitable patients and deliver a complex regimen. We may
be reliant on physicians with limited experience with TIL products and the associated regimens. Although we will make efforts to train
hospitals and provide processes that must be followed precisely, there is no way to ensure that all institutions will be able to perform at a
high  level  in  all  aspects  of  the  coordination  of  care.  Patients  may  progress  in  the  course  of  their  disease  or  may  experience  serious
adverse events from our products or supportive regimens while undergoing or awaiting treatment with our therapies.

Prior to our completion of a rolling BLA submission for lifileucel in March 2023 and its acceptance by the FDA in May 2023, we
had not previously submitted a BLA to the FDA, or a similar marketing application to comparable foreign authorities, for any product
candidate,  and  we  cannot  be  certain  that  our  current  or  any  future  product  candidates  will  be  successful  in  clinical  trials  or  receive
regulatory approval. Furthermore, although we have not submitted our BLA with comparisons to existing or more established therapies
and likewise do not expect the FDA to base its determination with respect to product approval on such comparisons, the FDA may factor
these comparisons into its decision whether to approve our TIL cell therapies. The FDA may also consider its approvals of competing
products, which may alter the treatment landscape concurrently with their review of our BLA filings, and which may lead to changes in
the  FDA’s  review  requirements  that  have  been  previously  communicated  to  us  and  our  interpretation  thereof,  including  changes  to
requirements for clinical data or clinical trial design. Such challenges and variabilities could delay approval or necessitate withdrawal of
our BLA filings.

Our  product  candidates  are  susceptible  to  the  risks  of  failure  inherent  at  any  stage  of  product  development,  including  the
appearance of unexpected adverse events or failure to achieve primary endpoints in clinical trials. Further, our product candidates may
not receive regulatory approval even if they are successful in clinical trials.

If approved for marketing by applicable regulatory authorities, our ability to generate revenues from our product candidates will

depend on our ability to:

● price  our  product  candidates  competitively  such  that  third-party  and  government  reimbursement  leads  to  broad  product

adoption;

● prepare a broad network of clinical sites for administration of our product;
● train and monitor sites for product delivery and consistent flow of appropriate patients;
● create market demand for our product candidates through our own marketing and sales activities, and any other arrangements to

promote these product candidates that we may otherwise establish;

● receive  regulatory  approval  for  the  targeted  patient  population(s)  and  claims  that  are  necessary  or  desirable  for  successful

marketing;

● obtain the necessary regulatory approvals to deliver the therapies to a sufficiently sized patient population;
● effectively commercialize our products;
● manufacture product candidates through CMOs or in our own manufacturing facility in sufficient quantities and at acceptable

quality and manufacturing cost to meet commercial demand at launch and thereafter;

● establish  and  maintain  agreements  with  wholesalers,  distributors,  pharmacies,  and  group  purchasing  organizations  on

commercially reasonable terms;

● maintain patent and trade secret protection and regulatory exclusivity for our product candidates;
● launch commercial sales of our product candidates;

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● maintain compliance with applicable laws, regulations, and guidance specific to commercialization, including interactions with
health  care  professionals,  patient  advocacy  groups,  and  communication  of  health  care  economic  information  to  payors  and
formularies;

● achieve market acceptance of our product candidates by patients, the medical community, and third-party payors;
● achieve appropriate reimbursement for our product candidates;
● obtain payor coverage at rates that will enable the market to adopt our product and enable sites to deliver the entire therapy to

patients;

● partner with third party logistics providers that will successfully distribute our products;
● maintain a distribution and logistics network capable of product storage within our specifications and regulatory guidelines, and

further capable of timely product delivery to commercial clinical sites;

● effectively compete with other therapies or competitors; and
● following launch, ensure that our product will be used as directed and that additional unexpected safety risks will not arise.

Development of a product candidate intended for use in combination with an already approved product may present more or

different challenges than development of a product candidate for use as a single agent.

We are currently developing lifileucel as part of a regimen which uses IL-2. We and our collaborators are also clinical trialing TIL
cell therapy along with other products, such as pembrolizumab, ipilimumab and nivolumab. The development of product candidates for
use in combination with another product may present challenges. For example, the FDA may require us to use more complex clinical
trial designs, in order to evaluate the contribution of each product and product candidate to any observed effects. It is possible that the
results of these clinical trials could show that any positive results are attributable to the already approved product. Moreover, following
product  approval,  the  FDA  may  require  that  products  used  in  conjunction  with  each  other  be  cross  labeled  for  combined  use.
Additionally,  the  FDA  review  process  can  be  more  complicated  for  combination  products,  and  may  result  in  delays,  particularly  if
complex therapeutics are involved. To the extent that we do not have rights to already approved products, this may require us to work
with another company to satisfy such a requirement. Moreover, developments related to the already approved products may impact our
clinical trials for the combination as well as our commercial prospects should we receive marketing approval. Such developments may
include changes to the approved product’s safety or efficacy profile, changes to the availability of the approved product, and changes to
the standard of care.

A Fast Track product designation, BTD, or other designation to facilitate product candidate development may not lead to faster
development or a faster regulatory review or approval process, and it does not increase the likelihood that our product candidates will
receive marketing approval.

We were granted Fast Track designation by the FDA for lifileucel in metastatic melanoma and metastatic cervical cancer, as well
as for lifileucel in combination with pembrolizumab in advanced melanoma. We were granted BTD for lifileucel for metastatic cervical
cancer and RMAT designation for lifileucel in advanced melanoma. We may seek Fast Track or Breakthrough designation for other of
our current or future product candidates. Receipt of a designation to facilitate product candidate development is within the discretion of
the FDA. Accordingly, 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 the FDA procedures and does not assure ultimate marketing
approval by the FDA. In addition, the FDA may later decide that the products no longer meet the designation conditions.

While lifileucel has received ODD for melanoma stages IIB-IV and for cervical cancer patients with tumors greater than 2 cm,
there  is  no  guarantee  that  we  will  be  able  to  maintain  this  designation,  receive  these  designations  for  any  of  our  other  product
candidates, or receive or maintain any corresponding benefits, including periods of exclusivity.

We received ODD in the U.S. for lifileucel to treat malignant melanoma stages IIB-IV and cervical cancer patients with tumors
greater than 2 cm. We may also seek ODD for our other product candidates, as appropriate. ODD, however, may be lost if the indication
for which we develop our designated product candidates does not meet the orphan criteria. Moreover, following product approval, orphan
exclusivity may be lost if the FDA determines, among other reasons, that the request for designation was materially defective or if the
manufacturer is unable to assure sufficient quantity of the product to meet the needs of patients with the rare disease or condition. Even if
we obtain orphan exclusivity, that exclusivity may not effectively protect the product from competition because different products can be
approved  for  the  same  condition  and  the  same  product  can  be  approved  for  different  conditions.  Even  after  an  orphan  product  is
approved, the FDA can subsequently approve a product containing the same principal molecular features for the same

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condition if the FDA concludes that the later product is clinically superior in that it is shown to be safer or more effective or makes a
major contribution to patient care.

Moreover, the FDA may grant ODDs to multiple of the same products for the same indication. If another sponsor receives FDA
approval for an ODD-designated product that is the same as our product candidates and intended for the same indication before we do,
we would be prevented from launching our product in the U.S. for this indication for a period of at least 7 years. In response to a court
decision  regarding  the  plain  meaning  of  the  exclusivity  provision  of  the  Orphan  Drug  Act,  the  FDA  may  undertake  a  reevaluation  of
aspects of its orphan drug regulations and policies. We do not know if, when, or how the FDA may change the orphan drug regulations
and policies, and it is uncertain how any changes might affect our business. Depending on what changes the FDA may make to its orphan
drug regulations and policies, our business, financial condition, results of operations, and prospects could be harmed.

Risks Related to Clinical Trials

We may face risks due to the need to rely on third parties, including clinical trial sites.

We are heavily reliant on third parties to conduct our clinical trials. We have a limited history of conducting clinical trials and have
no  experience  as  a  company  in  filing  and  supporting  the  applications  necessary  to  gain  marketing  approvals.  Securing  marketing
approval requires the submission of extensive preclinical and clinical data and supporting information to regulatory authorities for each
therapeutic  indication  to  establish  the  product  candidate’s  safety,  purity,  and  potency  for  that  indication.  Securing  marketing  approval
also requires the submission of information about the product manufacturing process to, and inspection of manufacturing facilities and
clinical trial sites by, applicable regulatory authorities. Clinical testing is expensive and can take many years to complete, and its outcome
is inherently uncertain. Failure can occur at any time during the clinical trial process. As a result of the COVID-19 pandemic, institutions
and research sites that currently conduct clinical trials may not be able to return to normal clinical trial operations for some time or may
no longer choose to participate in studies in the future. Furthermore, clinical trials may be delayed or otherwise may be more difficult to
execute in the future.

We have recruited a team that has experience with clinical trials and in the development of preclinical assets for translation into
clinical  trials;  however,  we  as  a  company  have  limited  experience  completing  pivotal  clinical  trials  for  cell  therapy  products  or
developing preclinical immunotherapy products. In part because of this lack of experience, we cannot be certain that our ongoing pivotal
clinical trials will be completed on time, if at all, will progress according to our plans or expectations, or that our planned clinical trials
will be initiated or initiated in a timely manner, progress according to our plans or expectations, or be completed on time, if they are
completed at all.

Large-scale  clinical  trials  require  significant  financial  and  management  resources,  and  reliance  on  third-party  clinical
investigators,  CROs,  CMOs,  or  consultants.  Relying  on  third-party  clinical  investigators,  CROs,  or  CMOs  may  force  us  to  encounter
delays and challenges that are outside of our control. In addition to manufacturing TIL at the iCTC, we rely on a CMO in the U.S. and
Europe to manufacture TIL for use in our clinical trials and commercial use upon approval. We may not be able to demonstrate sufficient
comparability between products manufactured at different facilities to allow for inclusion of the clinical results from patients treated with
products from these different facilities, or with our own manufacturing facility, in our product registrations, or to allow for use of the
iCTC at the time of launch. Further, our CMOs may not be able to manufacture TIL or otherwise fulfill their obligations to us because of
interruptions to their business, including the loss of their key staff or interruptions to their raw material supply.

We  rely  on  third  party  CROs  and  clinical  trial  sites  to  conduct,  supervise,  and  monitor  our  clinical  trials  for  our  product
candidates. We expect to continue to rely on third parties, such as CROs, clinical data management organizations, medical institutions,
independent  review  organizations  and  clinical  investigators,  to  conduct  our  clinical  trials.  While  we  have  agreements  governing  their
activities, we have limited influence over their actual performance and control only certain aspects of their activities. The failure of these
third parties to successfully carry out their contractual duties or meet expected deadlines could substantially harm our business because
we may be delayed in completing or unable to complete the clinical trials required to support future approval of our product candidates,
or  we  may  not  obtain  marketing  approval  for  or  commercialize  our  product  candidates  in  a  timely  manner  or  at  all.  Moreover,  these
agreements might terminate for a variety of reasons, including a failure to perform by the third parties. If we need to enter into alternative
arrangements, that could delay our product development activities and adversely affect our business.

Our reliance on these third parties for development activities will reduce our control over these activities. Nevertheless, we are
responsible for ensuring that each of our studies is conducted in accordance with the applicable protocol, legal, regulatory, and scientific
standards and our reliance on the CROs, clinical trial sites, and other third parties do not relieve us of these oversight responsibilities. For
example, we will remain responsible for ensuring that each of our clinical trials is conducted in accordance with the general

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investigational  plan  and  protocols  for  the  clinical  trial  and  for  ensuring  that  our  preclinical  studies  are  conducted  in  accordance  with
Good  Laboratory  Practices,  or  GLPs,  as  appropriate.  Moreover,  the  FDA  and  comparable  foreign  regulatory  authorities  require  us  to
comply with Good Clinical Practices, or 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 clinical trial participants are protected.
Regulatory authorities enforce these requirements through periodic inspections (including pre-approval inspections upon completion of a
BLA filing with the FDA) of clinical trial sponsors, clinical investigators, clinical trial sites and certain third parties including CMOs. If
we, our CROs, clinical trial sites, or other third parties fail to comply with applicable GCPs, or other regulatory requirements, we or they
may be subject to enforcement or other legal actions, the clinical data generated in our clinical trials may be deemed unreliable and the
FDA or comparable foreign regulatory authorities may require us to perform additional clinical trials. We cannot assure you that upon
inspection  by  a  given  regulatory  authority,  such  regulatory  authority  will  determine  that  any  of  our  clinical  trials  comply  with  GCP
regulations.

In addition, our clinical trials must be conducted with product candidates that were produced under cGMP. Our failure to comply
or our CMOs’ failure to comply with these regulations may require us to repeat clinical trials, which would delay the regulatory approval
process. We also are required to register certain clinical trials and post the results of certain completed clinical trials on a government
sponsored  database,  ClinicalTrials.gov,  within  specified  timeframes.  Failure  to  do  so  could  result  in  enforcement  actions  and  adverse
publicity.

In addition, our clinical trials must be conducted with product candidates that were produced under cGMP. Our failure to comply
or our CMOs’ failure to comply with these regulations may require us to repeat clinical trials, which would delay the regulatory approval
process. We also are required to register certain clinical trials and post the results of certain completed clinical trials on a government
sponsored  database,  ClinicalTrials.gov,  within  specified  timeframes.  Failure  to  do  so  could  result  in  enforcement  actions  and  adverse
publicity.

Our CROs, clinical trial sites, and other third parties may also have relationships with other entities, some of which may be our
competitors,  for  whom  they  may  also  be  conducting  clinical  trials  or  other  therapeutic  development  activities  that  could  harm  our
competitive position. In addition, these third parties are not our employees, and except for remedies available to us under our agreements
with  them,  we  cannot  control  whether  or  not  they  devote  sufficient  time  and  resources  to  our  ongoing  clinical,  non-clinical,  and
preclinical programs. If these third parties do not successfully carry out their contractual duties, meet expected deadlines or conduct our
clinical trials in accordance with regulatory requirements or our stated protocols, 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, our
clinical  trials  may  be  repeated,  extended,  delayed,  or  terminated  and  we  may  not  be  able  to  obtain,  or  may  be  delayed  in  obtaining,
marketing approvals for our product candidates and will not be able to, or may be delayed in our efforts to, successfully commercialize
our product candidates, or we or they may be subject to regulatory enforcement actions. As a result, our results of operations and the
commercial prospects for our product candidates would be harmed, our costs could increase and our ability to generate revenues could be
delayed. To the extent we are unable to successfully identify and manage the performance of third-party service providers in the future,
our business may be materially and adversely affected.

If any of our relationships with these third parties terminate, we may not be able to enter into alternative arrangements or do so on
commercially reasonable terms. Switching or adding additional contractors involves additional costs and requires management time and
focus. In addition, there is a natural transition period when a new third party commences work. As a result, delays could occur, which
could compromise our ability to meet our desired development timelines. Though we carefully manage our relationships with our third-
party service providers, there can be no assurance that we will not encounter similar challenges or delays in the future or that these delays
or challenges will not have a material adverse impact on our business, financial condition and prospects or results of operations.

We also rely on other third parties to manufacture and ship our products for the clinical trials that we conduct. Any performance
failure  on  the  part  of  these  third  parties  could  delay  clinical  development  or  marketing  approval  of  our  product  candidates  or
commercialization of our product candidates, if approved, producing additional losses and depriving us of potential product revenue.

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We may encounter substantial delays in our clinical trials or may not be able to conduct our clinical trials on the timelines we
expect, and we may be required to conduct additional clinical trials or modify current or future clinical trials based on feedback we
receive from the FDA.

Clinical testing is expensive, time consuming, and subject to uncertainty. We cannot guarantee that any current or future clinical
trials  will  be  conducted  as  planned  or  completed  on  schedule,  if  at  all,  or  that  any  of  our  product  candidates  will  receive  regulatory
approval. We initiated clinical trials in patients with metastatic melanoma, cervical, head and neck and non-small cell lung cancers, and
in other indications in collaboration with third parties. We completed enrollment in the pivotal clinical trial for melanoma, C-144-01, and
in June 2022, we announced that initial Cohort 4 data read by the independent review committee, or IRC, met the primary endpoint in
this clinical trial. In March 2023, we completed submission of our BLA to the FDA for the treatment of adult patients with metastatic
melanoma for approval, and the FDA accepted the BLA in May 2023. We obtained BLA approval on February 16, 2024. We plan to
initiate clinical trials in new indications, and new cohorts in existing clinical trials. Even as these clinical trials progress, issues may arise
that could require us to suspend or terminate such clinical trials or could cause the results of one cohort to differ from a prior cohort. For
example, we may experience slower than anticipated enrollment in our additional pivotal clinical trials, which may consequently delay
BLA submissions to the FDA or permit competitors to obtain approvals that may alter our BLA filing strategy. Additionally, temporary
or permanent clinical holds could be placed on our clinical trials for a variety of reasons. For instance, on December 22, 2023, the FDA
placed  a  clinical  hold  on  the  IOV-LUN-202  trial  in  response  to  a  recently  reported  Grade  5  (fatal)  serious  adverse  event  potentially
related to the non-myeloablative lymphodepletion pre-conditioning regimen, and we have paused enrollment and the LN-145 treatment
regimen  for  new  patients  in  IOV-LUN-202  during  the  clinical  hold.  A  failure  of  one  or  more  clinical  trials  can  occur  at  any  stage  of
testing, and our future clinical studies may not be successful. Events that may prevent successful or timely initiation or completion of
clinical development, or product approval include:

● regulators  or  IRBs  may  not  authorize  us  or  our  investigators  to  commence  a  clinical  trial,  conduct  a  clinical  trial  at  a
prospective clinical trial site, or amend clinical trial protocols, or regulators or IRBs may require that we modify or amend our
clinical trial protocols;

● delays in reaching a consensus or inability to obtain agreement with regulatory agencies on clinical trial design;
● the FDA or comparable foreign regulatory authorities may disagree with our intended indications, clinical trial design 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 may not allow us to use the clinical trial data from a research institution to support an IND if we cannot demonstrate
the comparability of our product candidates with the product candidate used by the relevant research institution in its clinical
trials;

● delays  in  or  failure  to  reach  an  agreement  on  acceptable  terms  with  prospective  CROs  and  clinical  trial  sites,  the  terms  of

which can be subject to extensive negotiation and may vary significantly among different CROs and clinical trial sites;

● delays in obtaining required IRB approval at each clinical trial site;
● imposition  of  a  temporary  or  permanent  clinical  hold,  suspensions  or  terminations  by  regulatory  agencies,  IRBs,  or  us  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  of  the  product  candidate,  or  due  to
findings of undesirable effects caused by a biologically or mechanistically similar therapeutic or therapeutic candidate;

● delays in recruiting suitable patients to participate in our clinical trials;
● delay in adding new investigators or clinical trial sites, or withdrawal of clinical trial sites from a clinical trial;
● delay or change in strategic direction for an indication resulting from differences in results between cohorts in a clinical trial,
such as the previously disclosed preliminary results for the C-145-04 clinical trial and the final patient population and results,
including  differences  in  patient  population,  such  as  differences  that  might  arise  due  to  the  impact  of  the  existing
immunotherapy treatment landscape, or from different interpretations of investigator results by IRC;

● failure by our CROs, clinical trial sites, patients, or other third parties, or us to adhere to clinical trial requirements, including

regulatory, contractual or protocol requirements;

● failure to perform in accordance with the FDA’s cGCP requirements or applicable regulatory guidelines in other countries;
● the number of patients required for clinical trials of our product candidates may be larger than we anticipate or enrollment in
these  clinical  trials  may  be  slower  than  we  anticipate,  potentially  affecting  our  timelines  for  approval  of  our  product
candidates;

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● patients  that  enroll  in  our  studies  may  misrepresent  their  eligibility  or  may  otherwise  not  comply  with  the  clinical  trial
protocol, resulting in the need to drop such patients from the clinical trial, increase the needed enrollment size for the clinical
trial or extend the clinical trial’s duration;

● patients dropping out of a clinical trial;
● occurrence of adverse events associated with the product candidate that are viewed to outweigh its potential benefits;
● changes  in  regulatory  requirements  and  guidance  that  require  amending  or  submitting  new  clinical  protocols  to  regulatory
authorities and IRBs, and which may cause delays in our development programs, or changes to regulatory review times;
● there  may  be  regulatory  questions  or  disagreements  regarding  interpretations  of  data  and  results,  or  new  information  may

emerge regarding our product candidates;

● changes in the standard of care on which a clinical development plan was based, which may require new or additional clinical

trials;

● the cost of clinical trials of our product candidates being greater than we anticipate, or we may have insufficient funds for a

clinical trial or to pay the substantial user fees required by the FDA upon the filing of a BLA;

● clinical  trials  of  our  product  candidates  producing  negative  or  inconclusive  results  may  fail  to  provide  sufficient  data  and
information  to  support  product  approval,  or  our  studies  may  fail  to  reach  the  necessary  level  of  statistical  or  clinical
significance,  which  may  result  in  our  deciding,  or  regulators  requiring  us,  to  conduct  additional  clinical  trials  studies,  or
preclinical studies, or abandon product development programs;

● early results from our clinical trials of our product candidates may be negatively affected by changes in efficacy measures
such as overall response rate and duration of response as more patients are enrolled in our clinical trials or as new cohorts of
our clinical trials are tested, and overall response rate and duration of response may be negatively affected by the inclusion of
unconfirmed responses in preliminary results that we report if such responses are not later confirmed;

● 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;

● there  may  be  changes  to  the  therapeutics  or  their  regulatory  status  which  we  are  administering  in  combination  with  our

product candidates;

● delays in patient enrollment due to the ongoing COVID-19 pandemic;
● the FDA or comparable foreign regulatory authorities may fail to approve or subsequently find fault with the manufacturing

processes or our manufacturing facilities for clinical and future commercial supplies;

● the  FDA  or  comparable  regulatory  authorities  may  take  longer  than  we  anticipate  making  a  decision  on  our  product

candidates;

● transfer of our manufacturing processes to our CMOs or other larger-scale facilities operated by a CMO or by us and delays or

failures by our CMOs or us to make any necessary changes to such manufacturing process;

● our  use  of  different  manufacturing  processes  within  our  clinical  trials,  including  our  Gen  1  and  Gen  2  manufacturing
processes, and any effects that may result from the use of different processes on the clinical data that we have reported and
will report in the future; and

● delays  in  manufacturing,  testing,  releasing,  validating,  or  importing/exporting  sufficient  stable  quantities  of  our  product
candidates  for  use  in  clinical  trials  or  the  inability  to  do  any  of  the  foregoing,  including  as  a  result  of  any  quality  issues
associated with the contract manufacturer.

We also may conduct clinical and preclinical research in collaboration with other academic, pharmaceutical, biotechnology and
biologics entities in which we combine our technologies with those of our collaborators. Such collaborations may be subject to additional
delays because of the management of the clinical trials, contract negotiations, the need to obtain agreement from multiple parties, and the
necessity  of  obtaining  additional  approvals  for  therapeutics  used  in  the  combination  clinical  trials.  These  combination  therapies  will
require additional testing and clinical trials will require additional FDA regulatory approval and will increase our future cost of expenses.

Any  inability  to  successfully  complete  preclinical  and  clinical  development  could  result  in  additional  costs  to  us  or  impair  our
ability to generate revenue. In addition, if we make manufacturing changes to our product candidates, we may be required to, or we may
elect  to,  conduct  additional  studies  to  bridge  our  modified  product  candidates  to  earlier  versions.  These  changes  may  require  FDA
approval or notification, may not have their desired effect, or the FDA may not accept data from prior versions of the product to support
an application, delaying our clinical trials or programs or necessitating additional clinical trials or preclinical studies. For example, while
our first BLA submission includes our Gen 2 manufacturing process, in the future we may seek to commercialize other manufacturing
processes,  such  as  our  Gen  3  manufacturing  process  or  our  PD-1  selected  TIL  manufacturing  process.  We  may  find  that
commercialization  of  these  manufacturing  processes  has  unintended  consequences  that  necessitate  additional  development  and
manufacturing work or additional clinical trials and preclinical studies, or results in non-approval of a BLA.

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Clinical trial delays could shorten any periods during which our products have patent protection and may allow our competitors to
bring products to market before we do, which could impair our ability to successfully commercialize our product candidates and may
harm our business and results of operations.

Regulatory authorities have substantial discretion in the approval process and may refuse to accept any application or may decide
that our data are insufficient for approval and require additional preclinical, clinical or other studies. The number and types of preclinical
studies  and  clinical  trials  that  will  be  required  for  regulatory  approval  also  varies  depending  on  the  product  candidate,  the  disease  or
condition that the product candidate is designed to address, and the regulations applicable to any particular product candidate. Approval
policies,  regulations  or  the  type  and  amount  of  clinical  data  necessary  to  gain  approval  may  change  during  the  course  of  a  product
candidate’s clinical development and may vary among jurisdictions. It is possible that any product candidates we may seek to develop in
the future will never obtain the appropriate regulatory approvals necessary for us or any future collaborators to commence product sales.
Any delay in completing development, obtaining or failure to obtain required approvals could also materially adversely affect our ability
or that of any of our collaborators to generate revenue from any such product candidate, which likely would result in significant harm to
our financial position and adversely impact our stock price.

It may take longer and cost more to complete our clinical trials than we project, or we may not be able to complete them at all.

For budgeting and planning purposes, we have projected the date for the commencement of future clinical trials, and continuation
and completion of our ongoing clinical trials. However, a number of factors, including scheduling conflicts with participating clinicians
and  clinical  institutions,  difficulties  in  identifying  and  enrolling  patients  who  meet  clinical  trial  eligibility  criteria,  and  the  ongoing
COVID-19 pandemic, may cause significant delays. We may not commence or complete clinical trials involving any of our products as
projected or may not conduct them successfully.

We  are  currently  enrolling  seven  company-sponsored  clinical  trials  to  assess  the  overall  safety  and  efficacy  of  Iovance  TIL
monotherapy  and  TIL  combinations  in  patients  with  melanoma,  cervical,  head  and  neck  and  lung  cancers  across  late-line  and  early
treatment  settings,  as  well  as  our  genetically  modified  TIL  cell  therapy  IOV-4001  and  our  peripheral  blood  lymphocyte,  or  PBL,
technology  for  hematological  malignancies.  However,  we  may  experience  difficulties  in  patient  enrollment  in  our  clinical  trials  for  a
variety of reasons. Our ability to enroll or treat patients in our other studies, or the duration or costs of those studies, could be affected by
multiple factors, including, preliminary clinical results, which may include efficacy and safety results from our ongoing Phase 2 studies,
but may not be reflected in the final analyses of these clinical trials.

For example, our current clinical trials utilize an “open-label” trial design. An open-label trial is one where both the patient and
investigator know whether the patient is receiving the test article or either an existing approved drug or placebo, which has the potential
to  create  selection  bias  in  the  investigators.  In  our  Phase  2  open-label  studies,  the  investigators  have  significant  discretion  over  the
selection  of  patient  participants.  Although  preliminary  data  from  certain  clinical  trials  were  generally  positive,  that  data  may  not
necessarily  be  representative  of  interim  or  final  results,  as  new  patients  are  cycled  through  the  applicable  treatment  regimes.  As  the
clinical trials continue, the investigators may prioritize patients with more progressed forms of cancer than the initial patient population,
based  on  the  success  or  perceived  success  of  that  initial  population.  Patients  with  more  progressed  forms  of  cancer  may  be  less
responsive to treatment, and accordingly, interim efficacy data may show a decline in patient response rate or other assessment metrics.
As the trials continue, investigators may shift their approach to the patient population, which may ultimately result in a decline in both
interim  and  final  efficacy  data  from  the  preliminary  data,  or  conversely,  an  increase  in  final  efficacy  data  following  a  decline  in  the
interim efficacy data, as patients with more progressed forms of cancer are cycled out of the clinical trials and replaced by patients with
less advanced forms of cancer. This opportunity for investigator selection bias in our clinical trials as a result of open-label design may
not be adequately handled and may cause a decline in or distortion of clinical trial data from our preliminary results. Depending on the
outcome of our open-label studies, we may need to conduct one or more follow-up or supporting studies in order to successfully develop
our  products  for  FDA  approval.  Many  companies  in  the  biotechnology,  pharmaceutical  and  medical  device  industries  have  suffered
significant setbacks in late-stage clinical trials after achieving positive results in earlier development, and we cannot be certain that we
will not face such setbacks.

Furthermore, the timely completion of clinical trials in accordance with their protocols depends, among other things, on our ability
to  enroll  a  sufficient  number  of  patients  who  remain  in  the  clinical  trial  until  its  conclusion,  including  the  ability  of  us  or  our
collaborators to conduct clinical trials under the constraints of the COVID-19 pandemic. In addition, our clinical trials will compete with
other  clinical  trials  for  product  candidates  that  are  in  the  same  therapeutic  areas  as  our  product  candidates,  and  this  competition  will
reduce the number and types of patients available to us, because some patients who might have opted to enroll in our clinical trials may
instead opt to enroll in a clinical trial being conducted by one of our competitors. Accordingly, we cannot guarantee that the clinical trial
will progress as planned or as scheduled. Delays in patient enrollment may result in increased costs or may affect the timing or

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outcome of our ongoing clinical trial and planned clinical trials, which could prevent completion of these clinical trials and adversely
affect our ability to advance the development of our product candidates.

We expect to rely on medical institutions, academic institutions, or CROs to conduct, supervise or monitor some or all aspects of
clinical  trials  involving  our  products.  We  will  have  less  control  over  the  timing  and  other  aspects  of  these  clinical  trials  than  if  we
conducted them entirely on our own. If we fail to commence or complete, or experience delays in, any of our planned clinical trials, our
stock price and our ability to conduct our business as currently planned could be harmed.

We  currently  anticipate  that  we  will  have  to  rely  on  our  CMO  to  supplement  the  manufacturing  capacity  at  the  iCTC  in
manufacturing our adoptive cell therapy and biologic products for clinical trials. If they fail to commence or complete, or experiences
delays in, manufacturing our adoptive cell therapy and other biologic products, our planned clinical trials will be delayed, which will
adversely affect our stock price and our ability to conduct our business as currently planned.

Clinical trials are expensive, time-consuming and difficult to design and implement, and our clinical trial costs may be higher

than for more conventional therapeutic technologies or drug products.

Clinical  trials  are  expensive  and  difficult  to  design  and  implement,  in  part  because  they  are  subject  to  rigorous  regulatory
requirements. Because our product candidates include candidates based on new cell therapy technologies and manufactured on a patient-
by-patient  basis,  we  expect  that  they  will  require  extensive  research  and  development  and  have  substantial  manufacturing  costs.  In
addition,  costs  to  treat  patients  with  relapsed/refractory  cancer  and  to  treat  potential  side  effects  that  may  result  from  our  product
candidates  can  be  significant.  Some  clinical  trial  sites  may  not  bill,  or  obtain  coverage  from  Medicare,  Medicaid,  or  other  third-party
payors for some or all of these costs for patients enrolled in our clinical trials, and we may be required by those clinical trial sites to pay
such  costs.  Accordingly,  our  clinical  trial  costs  are  likely  to  be  significantly  higher  per  patient  than  those  of  more  conventional
therapeutic technologies or drug products. In addition, our proposed personalized product candidates involve several complex and costly
manufacturing  and  processing  steps,  the  costs  of  which  will  be  borne  by  us.  We  are  also  responsible  for  the  manufacturing  costs  of
products for patients that may have a tumor resection but ultimately do not receive an infusion. Depending on the number of patients that
we ultimately screen and enroll in our clinical trials, and the number of clinical trials that we may need to conduct, our overall clinical
trial costs may be higher than for more conventional treatments.

Our clinical trials may fail to demonstrate adequately the safety and efficacy of our product candidates, which would prevent

or delay regulatory approval and commercialization.

The clinical trials of our product candidates are, and the manufacturing and marketing of our products will be, subject to extensive
and rigorous review and regulation by numerous government authorities in the U.S. and in other countries where we intend to test and
market our product candidates. Before obtaining regulatory approvals for the commercial sale of any of our product candidates, we must
demonstrate through lengthy, complex and expensive preclinical testing and clinical trials that our product candidates are both safe and
effective for use in each target indication. Because our product candidates are subject to regulation as biological drug products, we will
need to demonstrate that they are safe, pure, and potent for use in their target indications. Each product candidate must demonstrate an
adequate  risk  versus  benefit  profile  in  its  intended  patient  population  and  for  its  intended  use.  The  risk/benefit  profile  required  for
product licensure will vary depending on these factors and may include not only the ability to show tumor shrinkage, but also adequate
duration of response, a delay in the progression of the disease, and/or an improvement in survival. For example, response rates from the
use  of  our  product  candidates  may  not  be  sufficient  to  obtain  regulatory  approval  unless  we  can  also  show  an  adequate  duration  of
response. Regulatory authorities may ultimately disagree with our chosen endpoints or may find that our studies or clinical trial results do
not support product approval. Clinical testing is expensive and can take many years to complete, and its outcome is inherently uncertain.
Failure can occur at any time during the clinical trial process. The results of preclinical studies and early clinical trials of our product
candidates  with  small  patient  populations  may  not  be  predictive  of  the  results  of  later-stage  clinical  trials  or  the  results  once  the
applicable clinical trials are completed. Preliminary, single cohort, or top-line results from clinical trials may not be representative of the
final  clinical  trial  results.  The  results  of  studies  in  one  set  of  patients  or  line  of  treatment  may  not  be  predictive  of  those  obtained  in
another and the results in various human clinical trials reported in scientific and medical literature may not be indicative of results we
obtain  in  our  clinical  trials.  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 studies may also reveal unfavorable product
candidate characteristics, including safety concerns.

We  expect  there  may  be  greater  variability  in  results  for  products  processed  and  administered  on  a  patient-by-patient  basis,  as
anticipated for our product candidates, than for “off-the-shelf” products, like many other drugs. There is typically an extremely high rate
of attrition from the failure of product candidates proceeding through clinical trials. Product candidates in later stages of clinical trials

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may fail to show the desired safety and efficacy profile despite having progressed through preclinical studies and initial clinical trials.
Many companies in the biopharmaceutical industry have suffered significant setbacks in advanced clinical trials due to lack of efficacy or
unacceptable safety issues, notwithstanding promising results in earlier clinical trials. Most product candidates that begin clinical trials
are never approved by regulatory authorities for commercialization.

In  some  instances,  there  can  be  significant  variability  in  safety  or  efficacy  results  between  different  clinical  trials  of  the  same
product candidate due to numerous factors, including changes in clinical trial procedures set forth in protocols, differences in the size and
type  of  the  patient  populations,  changes  in  and  adherence  to  the  clinical  trial  protocols  and  the  rate  of  dropout  among  clinical  trial
participants. Our current and future clinical trial results may not be successful. Moreover, should there be a flaw in a clinical trial, it may
not become apparent until the clinical trial is well advanced. Further, because we currently plan to test our product candidates for use
with other oncology products, the design, implementation, and interpretation of the clinical trials necessary for marketing approval may
be more complex than if we were developing our product candidates alone.

In  addition,  even  if  such  clinical  trials  are  successfully  completed,  we  cannot  guarantee  that  the  FDA  or  foreign  regulatory
authorities  will  interpret  the  results  as  we  do,  and  more  clinical  trials  could  be  required  before  we  submit  our  product  candidates  for
approval. To the extent that the results of the clinical trials are not satisfactory to the FDA or foreign regulatory authorities for support of
a marketing application, we may be required to expend significant resources, which may not be available to us, to conduct additional
clinical trials in support of potential approval of our product candidates.

We have reported preliminary results for clinical trials of our product candidates, including TIL for the treatment of metastatic
melanoma, non-small cell lung cancer, cervical cancer, and head and neck cancers. These preliminary results, which include assessments
of efficacy such as ORR, are subject to substantial risk of change due to small sample sizes and may change as patients are evaluated or
as additional patients are enrolled in these clinical trials. These outcomes may be unfavorable, deviate from our earlier reports, and/or
delay or prevent regulatory approval or commercialization of our product candidates, including candidates for which we have reported
preliminary efficacy results. In clinical trials where a staged expansion is expected, such as studies using a Simon’s two stage design,
these outcomes may result in the failure to meet an initial efficacy threshold for the first stage. Furthermore, other measures of efficacy
for these clinical trials and product candidates may not be as favorable.

If  we  encounter  difficulties  enrolling  patients  in  our  clinical  trials,  our  clinical  development  activities  could  be  delayed  or

otherwise adversely affected.

The timely completion of clinical trials in accordance with their protocols depends, among other things, on our ability to enroll a
sufficient number of patients, or similar patients from a Phase 2 clinical trial to a pivotal program, who remain in the clinical trial until its
conclusion. We may experience difficulties or delays in patient enrollment in our clinical trials for a variety of reasons, including:

● the size and nature of the patient population;

● the severity of the disease under investigation;

● the patient eligibility criteria defined in the protocol;

● the size of the clinical trial population required for analysis of the clinical trial’s primary endpoints;

● the proximity of patients to clinical trial sites;

● the design of the clinical trial;

● our ability to recruit clinical trial investigators with the appropriate competencies and experience;

● the efforts to facilitate timely enrollment in clinical trials and the effectiveness of recruiting publicity;

● the patient referral practices of physicians;

● competing clinical trials for similar therapies or other new therapeutics not involving cell-based immunotherapy;

● clinicians’ and patients’ perceptions as to the potential advantages and side effects of the product candidate being studied in
relation to other available therapies, including any new drugs or treatments that may be approved for the indications we are
investigating;

● clinical investigators enrolling patients who do not meet the enrollment criteria, requiring the inclusion of additional patients

in the clinical trial;

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● the ongoing COVID-19 pandemic limiting our access to patients who would otherwise be eligible for enrollment, including
treatment-naïve patients who may be more likely to seek standard of care therapies available at local treatment centers rather
than enroll in a clinical trial at a larger hospital;

● approval of new indications for existing therapies or approval of new therapies in general;

● our ability to obtain and maintain patient consents; and

● the risk that patients enrolled in clinical trials will not complete a clinical trial, return for post-treatment follow-up, or follow
the required clinical trial procedures. For instance, patients, including patients in any control groups, may withdraw from the
clinical trial if they are not experiencing improvement in their underlying disease or condition. Withdrawal of patients from
our clinical trials may compromise the quality of our data.

In addition, our clinical trials will compete with other clinical trials for product candidates that are in the same therapeutic areas as
our product candidates, and this competition will reduce the number and types of patients available to us, because some patients who
might have opted to enroll in our clinical trials may instead opt to enroll in a trial being conducted by one of our competitors. Because
the number of qualified clinical investigators is limited, we expect to conduct some of our clinical trials at the same clinical trial sites that
some of our competitor’s use, which will reduce the number of patients who are available for our clinical trials at such clinical trial sites.
Moreover,  because  our  product  candidates  represent  a  departure  from  more  commonly  used  methods  for  cancer  treatment,  potential
patients and their doctors may be inclined to use conventional therapies, such as chemotherapy and approved immunotherapies, rather
than enroll patients in any future clinical trial. In addition, potential enrollees may opt to participate in other clinical trials because of the
length  of  time  between  the  time  that  their  tumor  is  resected  and  the  TIL  is  infused  back  into  the  patient.  Amendments  to  our  clinical
protocols may affect enrollment in, or results of, our trials, including amendments we have made to further define the patient population
to be studied.

Even if we are able to enroll a sufficient number of patients in our clinical trials, delays in patient enrollment or small population
size may result in increased costs or may affect the timing or outcome of the planned clinical trials, which could prevent completion of
these clinical trials and adversely affect our ability to advance the development of our product candidates.

Our product candidates may cause undesirable side effects or have other properties that could halt their clinical development,

prevent their regulatory approval, limit their commercial potential, or result in significant negative consequences.

Results  of  our  clinical  trials  could  reveal  a  high  and  unacceptable  severity  and  prevalence  of  side  effects  or  unexpected
characteristics.  Undesirable  side  effects  caused  by  our  product  candidates  could  cause  us,  IRBs,  DSMBs,  or  regulatory  authorities  to
interrupt, delay or halt clinical trials and could result in a more restrictive label or the delay or denial of regulatory approval by the FDA
or other comparable foreign regulatory authorities. Even if we were to receive product approval, such approval could be contingent on
inclusion of unfavorable information in our product labeling, such as limitations on the indications for use 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  requirements  for  costly  post  marketing  testing  and
surveillance, or other requirements, including a Risk Evaluation and Mitigations Strategy or REMS, to monitor the safety or efficacy of
the  products,  and  in  turn  prevent  us  from  commercializing  and  generating  revenues  from  the  sale  of  our  current  or  future  product
candidates.

If unacceptable toxicities or side effects arise in the development of our product candidates, we, an IRB, DSMB or the FDA or
comparable foreign regulatory authorities could order us to cease clinical trials, order our clinical trials to be placed on clinical hold, or
deny approval of our product candidates for any or all targeted indications. The FDA or comparable foreign regulatory authorities may
also require additional data, clinical, or preclinical studies should unacceptable toxicities arise. We may need to abandon development or
limit development of that product candidate to certain uses or subpopulations in which the undesirable side effects or other characteristics
are  less  prevalent,  less  severe  or  more  acceptable  from  a  risk/benefit  perspective.  Toxicities  associated  with  our  clinical  trials  and
products may also negatively impact our ability to conduct clinical trials using TIL cell therapy in larger patient populations, such as in
patients that have not yet been treated with other therapies or have not yet progressed on other therapies.

Treatment-related side effects could also affect patient recruitment or the ability of enrolled subjects to complete our clinical trials
or result in potential product liability claims. Such toxicities, which may arise from TIL cell therapy in general, including co-therapies,
may include, for example, thrombocytopenia, chills, anemia, pyrexia, febrile neutropenia, diarrhea, neutropenia, vomiting, hypotension,
and dyspnea. For example, the update in October 2018 from the C-144-01 clinical trial included two grade 5 treatment emergent adverse
events. In addition, failure to manage toxicities, adverse events or side effects and to take recommended or other precautions may result
in deaths or harm to patients. Furthermore, harm to patients may not be appropriately recognized or managed by the treating medical

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staff,  because  treatments  related  to  personalized  cell  therapy  are  not  normally  encountered  in  the  general  patient  population  and  by
medical personnel. Any of these occurrences may harm our business, financial condition and prospects significantly.

We will be unable to commercialize our products if our trials are not successful.

Our  research  and  development  programs  are  at  various  stages  of  clinical  development,  including  several  at  an  early  stage.  We
must  demonstrate  our  products’  safety  and  efficacy  in  humans  through  extensive  clinical  testing.  We  may  experience  numerous
unforeseen events during, or as a result of, the testing process that could delay or prevent commercialization of our products, including
but not limited to the following:

● safety and efficacy results in various human clinical trials reported in scientific and medical literature may not be indicative of

results we obtain in our clinical trials;

● after  reviewing  test  results,  we  or  our  collaborators  may  abandon  projects  that  we  might  previously  have  believed  to  be

promising;

● we, our collaborators or regulators, may suspend or terminate clinical trials if the participating subjects or patients are being

exposed to unacceptable health risks;

● the  effects  our  potential  products  have  may  not  be  the  desired  effects  or  may  include  undesirable  side  effects  or  other

characteristics that preclude regulatory approval or limit their commercial use if approved;

● manufacturers may not meet the necessary standards for the production of the product candidates or may not be able to supply

the product candidates in a sufficient quantity;

● regulatory authorities may find that our clinical trial design or conduct does not meet the applicable approval requirements;

and

● our clinical trials, as well as clinical trials from our competitors, may diminish our anticipated revenues due to overlapping

patient populations, costs and payor coverage, or patient needs.

Clinical testing is very expensive, can take many years, and the outcome is uncertain. It could take as much as 12 months or more
before we learn the results from any clinical trial using our adoptive cell therapy with TIL. The data collected from our clinical trials may
not be sufficient to support approval by the FDA of our TIL-based product candidates for the treatment of solid tumors. The clinical trials
for  our  products  under  development  may  not  be  completed  on  schedule  and  the  FDA  may  not  ultimately  approve  any  of  our  product
candidates for commercial sale. If we fail to adequately demonstrate the safety and efficacy of any product candidate under development,
we may not receive regulatory approval for those products, which would prevent us from generating revenues or achieving profitability.

Risks Related to Third Parties

We may not be able to license new technology from third parties.

An element of our intellectual property portfolio is to license additional rights and technologies from third parties, including the
NIH and others. Our inability to license the rights and technologies that we have identified, or that we may in the future identify, could
have  a  material  adverse  impact  on  our  ability  to  complete  the  development  of  our  products  or  to  develop  additional  products.  No
assurance can be given that we will be successful in licensing any additional rights or technologies from third parties, including the NIH
and  others.  Failure  to  obtain  additional  rights  and  licenses  may  detrimentally  affect  our  planned  development  of  additional  product
candidates and could increase the cost, and extend the timelines associated with our development of such other products.

We are required to pay substantial royalties and lump sum benchmark payments under our license or acquisition agreements

with the NIH, Moffitt, Novartis, Clinigen and Cellectis, and we must meet certain milestones to maintain our license rights.

Under our license or acquisition agreements with the NIH, Moffitt, Novartis, Clinigen and Cellectis for our adoptive cell therapy
and  immunotherapy  technologies,  we  are  currently  required  to  pay  both  substantial  benchmark  payments  and  royalties  to  each  entity
based on our revenues from sales of our products utilizing the licensed or acquired technologies. These payments could adversely affect
the overall profitability for us of any products that we may seek to commercialize under these license agreements. In order to maintain
our license rights under the NIH, Moffitt, Novartis, and Cellectis license agreements, we will need to meet certain specified milestones,
subject to certain cure provisions, in the development of our product candidates, and a milestone payment is required to Clinigen upon
the approval of lifileucel in melanoma. There is no assurance that we will be successful in meeting these milestones on a timely basis, or
at all.

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We  are  dependent  on  third  parties  to  support  our  research,  development,  and  manufacturing  activities  and,  therefore,  are

subject to the efforts of these parties and our ability to successfully collaborate with these third parties.

As a result of our current strategy to outsource most of our manufacturing, we rely very heavily on third parties to perform for us
the manufacturing of our products and/or product candidates. We also license a portion of our technology from others. We intend to rely
upon our contract manufacturers to produce large quantities of materials needed for clinical trials and product commercialization. Third
party  manufacturers  may  not  be  able  to  meet  our  needs  with  respect  to  timing,  quantity,  or  quality.  If  we  are  unable  to  contract  for  a
sufficient  supply  of  needed  materials  on  acceptable  terms,  or  if  we  should  encounter  delays  or  difficulties  in  our  relationships  with
manufacturers,  our  clinical  testing  and/or  commercialization  efforts  may  be  delayed,  thereby  delaying  the  submission  of  products  for
regulatory  approval  or  the  market  introduction  and  subsequent  sales  of  our  products.  Any  such  delay  may  lower  our  revenues  and
potential profitability.

In  addition,  in  order  to  supplement  our  own  efforts  to  improve  TIL  manufacturing  and  develop  TIL  cell  therapies  in  new
indications in clinical trials, we currently work and collaborate with government and academic research institutions, medical institutions,
and  corporate  partners  such  as  the  NCI,  Moffitt,  Cellectis,  Yale  University,  and  Novartis.  We  also  intend  to  continue  to  enter  into
additional  third-party  collaborative  agreements  in  the  future.  However,  we  may  not  be  able  to  successfully  negotiate  any  additional
collaborative arrangements. If established, these relationships may not be scientifically or commercially successful, or may be unable to
enroll  patients,  which  has  occurred  in  one  of  our  prior  collaborations.  The  success  of  these  and  future  collaborations  and  joint
development arrangements may be subject to numerous risks and uncertainties, including the inability or unwillingness of our partners to
perform in the manner, or to the extent anticipated, may also be subject to disagreements regarding the rights, interests, and performance
of  the  counterparties  under  our  licenses  and  development  agreements.  Disagreements  between  parties  to  a  collaboration  arrangement
regarding clinical development and commercialization matters can lead to delays in the development process or commercialization of the
applicable product and/or product candidate and, in some cases, termination of the collaboration arrangement. These disagreements can
be difficult to resolve if neither of the parties has final decision-making authority under the collaboration agreement.

With  regard  to  future  collaboration  efforts,  we  face  significant  competition  in  seeking  appropriate  collaborators.  Our  ability  to
reach a definitive agreement for collaboration will depend, among other things, upon our assessment of the collaborator’s resources and
expertise, the terms and conditions of the proposed collaboration and, an evaluation by the proposed collaborator of a number of similar
or unique factors.

Collaborations with biopharmaceutical companies and other third parties often are terminated or allowed to expire by the other
party.  Any  such  termination  or  expiration  would  adversely  affect  us  financially  and  could  harm  our  business  reputation.  Any
collaboration may pose a number of risks, including the following:

● collaborators may not perform their obligations as expected;
● collaborators  may  not  pursue  development  of  product  candidates  and/or  commercialization  of  products  that  achieve
regulatory approval or may elect not to continue or renew development or commercialization programs based on clinical trial
results,  changes  in  the  collaborators’  strategic  focus  or  available  funding,  or  external  factors,  such  as  an  acquisition,  that
divert resources or create competing priorities;

● collaborators may delay clinical trials, provide insufficient funding for a clinical trial program, stop a clinical trial or abandon
a  product  candidate,  repeat  or  conduct  new  clinical  trials,  or  require  a  new  formulation  of  a  product  candidate  for  clinical
testing;

● collaborators could fail to make timely regulatory submissions for a product candidate;
● collaborators may not comply with all applicable regulatory requirements or may fail to report safety data in accordance with

all applicable regulatory requirements;

● collaborators could independently develop, or develop with third parties, products that compete directly or indirectly with our
products and/or product candidates if the collaborators believe that competitive products are more likely to be successfully
developed or can be commercialized under terms that are more economically attractive than ours;

● products and/or product candidates discovered in collaboration with us may be viewed by our collaborators as competitive
with  their  own  products  and/or  product  candidates,  which  may  cause  collaborators  to  cease  to  devote  resources  to  the
commercialization of our products and/or product candidates;

● a  collaborator  with  marketing  and  distribution  rights  to  one  or  more  of  our  product  candidates  that  achieve  regulatory

approval may not commit sufficient resources to the marketing and distribution of such product candidate or product;

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● disagreements  with  collaborators,  including  disagreements  over  proprietary  rights,  contract  interpretation,  or  the  preferred
course  of  development,  might  cause  delays  or  termination  of  the  research,  development,  or  commercialization  of  products
and/or product candidates, might lead to additional responsibilities for us with respect to products and/or product candidates,
or might result in litigation or arbitration, any of which would be time consuming and expensive;

● collaborators may not properly maintain or defend our intellectual property rights or may use our proprietary information in
such  a  way  as  to  invite  litigation  that  could  jeopardize  or  invalidate  our  intellectual  property  or  proprietary  information  or
expose us to potential litigation;

● collaborators  may  infringe  the  intellectual  property  rights  of  third  parties,  which  may  expose  us  to  litigation  and  potential

liability;

● collaborators may be involved in a business combination, resulting in the decreased emphasis or termination of development

or commercialization of any product candidate subject to the collaboration agreement; and

● termination of a collaboration agreement may make it more difficult to attract new collaborators and our and our products’ or

product candidates’ reputation in the medical, business, and financial communities could be adversely affected.

If any third-party collaborator breaches or terminates its agreement with us or fails to conduct its activities in a timely manner, the
commercialization  of  our  product  candidates  under  development  could  be  delayed  or  blocked  completely.  It  is  possible  that  our
collaborators will change their strategic focus, pursue alternative technologies, or develop alternative products, either on their own or in
collaboration with others, as a means for developing treatments for the diseases targeted by our collaborative programs. The effectiveness
of our collaborators in marketing our products will also affect our revenues and earnings.

Our  collaborators  will  also  be  required  to  comply  with  the  applicable  regulatory  requirements,  and,  as  such,  are  subject  to  the
same risks as we are. If they do not or are not able to comply with these requirements, we may not be able to use the data generated
through their studies to support our future investigational or marketing applications. Collaborator noncompliance may also expose them
and us to regulatory enforcement actions.

No assurance can be given that we will be able to successfully collaborate with our partners as anticipated and that our current or
future collaborations will be completed as contemplated, support the regulatory approval of our current product candidates, or result in
any viable additional products and/or product candidates. For instance, to the extent that these collaborators conduct their studies with
manufacturing processes that are different from ours or with a product that is different from ours, the results generated from their studies
may not be seen in our current or future studies that employ our manufacturing processes, and the results generated from their studies
may not support approval of our product candidates.

If  we  are  unable  to  obtain  or  maintain  suitable  collaborators  on  a  timely  basis,  on  acceptable  terms,  or  at  all,  we  may  have  to
curtail  the  development  of  a  product  candidate,  reduce  or  delay  its  development  program  or  one  or  more  of  our  other  development
programs,  delay  commercialization  of  products  and/or  product  candidates  or  reduce  the  scope  of  any  sales  or  marketing  activities,  or
increase our expenditures and undertake development or commercialization activities at our own expense.

We rely on and collaborate with governmental, academic, and corporate partners or agencies to approve, improve, and develop
TIL cell therapies for new indications for use in combination with other therapies and to evaluate new TIL manufacturing methods,
the results of which, because the manufacturing processes are not within our control, may be incorrect or unreliable.

In  addition  to  our  own  research  and  process  development  efforts,  we  seek  to  collaborate  with  government,  academic  research
institutions and corporate partners to improve TIL manufacturing and to develop TIL cell therapies for new indications. In 2017-2020,
we announced our continued collaborations with Moffitt, MDACC, and others to evaluate new solid tumor and hematologic indications
for TIL cell therapy in clinical trials and preclinical studies as well as, in some cases, new TIL manufacturing approaches. The results of
these collaborations may be used to support our filing with the FDA of INDs to conduct more advanced clinical trials of our product
candidates, or to otherwise analyze or make predictions or decisions with respect to our current or future product candidates. However,
because  the  majority  of  our  collaborations  are  conducted  at  outside  laboratories  and  we  do  not  have  complete  control  over  how  the
studies are conducted or reported or over the manufacturing methods used to manufacture TIL product, the results of such studies, which
we  may  use  as  the  basis  for  our  conclusions,  projections  or  decisions  with  respect  to  our  current  or  future  products  and  product
candidates, may be incorrect or unreliable, or may have a negative impact on us if the results of such studies are imputed to our products
or  proposed  indications,  even  if  such  imputation  is  improper.  For  example,  we  have  entered  into  collaborations  with  Moffitt,  and
MDACC to perform clinical trials using TIL products that differ from our products, but the results of these clinical trials, if negative,
may adversely impact our stock price and our development plans for our products. Additionally, we may use third party data to analyze,
reach conclusions or make predictions or decisions with respect to our product candidates that may be incomplete, inaccurate or

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otherwise unreliable. There may also be delays or other limitations on our activities as a result of the inability of these entities to expedite
our priorities in the product, facility, or regulatory approval process.

Other Risks Related to Our Business

Our current line of business, and the biotechnology industry in which we operate, makes it difficult to evaluate our business

plan and our prospects.

We  have  only  a  limited  operating  history  in  our  current  line  of  business  on  which  a  decision  to  invest  in  our  company  can  be
based. The future of our company currently is dependent upon our ability to implement our business plan, as that business plan may be
modified from time to time by our management and Board of Directors. While we believe that we have a reasonable business plan and
research and development strategy, we have only a limited operating history against which we can test our plans and assumptions, and
investors therefore cannot evaluate the likelihood of our success.

We face the problems, expenses, difficulties, complications, and delays normally associated with a commercial biopharmaceutical
company  with  significant  pre-commercial  assets,  many  of  which  are  beyond  our  control.  Accordingly,  our  prospects  should  be
considered  in  light  of  the  risks,  expenses,  and  difficulties  frequently  encountered  in  the  establishment  of  a  new  business  developing
technologies in an industry that is characterized by a number of market entrants and intense competition. Because of our size and limited
resources,  we  may  not  possess  the  ability  to  successfully  overcome  many  of  the  risks  and  uncertainties  frequently  encountered  by
commercial  biopharmaceutical  companies  with  significant  pre-commercial  assets  involved  in  the  rapidly  evolving  field  of
immunotherapy.  We  also  face  the  risks  associated  with  the  shift  from  development  to  commercialization  of  new  products  based  on
innovative technologies. There can be no assurance that we will be successful in developing our business.

Our internal computer systems, or those used by our contract research organizations or other contractors or consultants, may

fail or suffer security breaches.

Despite the implementation of security measures, our internal computer systems and those of our contract research organizations
and  other  contractors  and  consultants  are  vulnerable  to  damage  from  computer  viruses,  unauthorized  and  authorized  access,  natural
disasters,  terrorism,  war  and  telecommunication  and  electrical  failures.  If  such  an  event  was  to  occur  and  cause  interruptions  in  our
operations, it could result in a disruption of our drug development programs. For example, the loss of clinical trial data from completed
or ongoing clinical trials for a product candidate could result in delays in our regulatory approval efforts and significantly increase our
costs to recover or reproduce the data. To the extent that any disruption or security breach were to result in a loss of or damage to our
data  or  applications,  or  inappropriate  disclosure  of  confidential  or  proprietary  information,  we  could  incur  liability  and  the  further
development of any product candidates could be delayed.

We maintain a specialized information technology system for tracking chain of custody and chain of identity for TIL cell therapy
patients.  Like  other  autologous  cell  therapies,  this  is  extremely  important  for  patient  safety  and  is  a  requirement  outlined  in  our  BLA
submission. This requires us to store and maintain patient specific health information. The risks associated with storing patient health and
personal data may increase cyber threats and regulatory accountability and scrutiny. Although we have industry-standard secure systems
and maintain privacy controls, there is a possibility that incidents compromising this information can occur. In addition to the regulatory
and civil litigation risks, failure to maintain this data correctly could result in loss of patients or impair our ability to deliver patient care.

We are dependent on information technology, systems, infrastructure and data.

We are dependent upon information technology systems, infrastructure and data. The multitude and complexity of our computer
systems make them inherently vulnerable to service interruption or destruction, malicious intrusion and random attack. Likewise, data
privacy  or  cybersecurity  breaches  by  third  parties,  employees,  contractors  or  others  may  pose  a  risk  that  sensitive  data,  including  our
intellectual  property,  trade  secrets  or  personal  information  of  our  employees,  patients,  or  other  business  partners  may  be  exposed  to
unauthorized persons or to the public. Cyberattacks are increasing in their frequency, sophistication and intensity. The Russia-Ukraine
conflict may also increase cybersecurity risks on a global basis. Cyberattacks could include the deployment of harmful malware, denial-
of-service,  ransomware,  social  engineering  and  other  means  to  affect  service  reliability  and  threaten  data  confidentiality,  privacy,
integrity  and  availability.  Our  business  and  technology  partners  face  similar  risks,  and  any  security  breach  of  their  systems  could
adversely  affect  our  security  posture.  While  we  have  invested,  and  continue  to  invest,  in  the  protection  of  our  data  and  information
technology  infrastructure,  there  can  be  no  assurance  that  our  efforts,  or  the  efforts  of  our  partners  and  vendors,  will  prevent  service
interruptions,  or  identify  breaches  in  our  systems,  that  could  adversely  affect  our  business  and  operations  and/or  result  in  the  loss  of
critical or sensitive information, which could result in financial, legal, business or reputational harm to us. In addition, our liability

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insurance  may  not  be  sufficient  in  type  or  amount  to  cover  us  against  claims  related  to  security  breaches,  cyberattacks  and  other
cybersecurity related breaches.

Our  business  could  be  adversely  affected  by  the  effects  of  health  epidemics,  including  the  COVID-19  pandemic,  in  regions
where  we  or  third  parties  on  which  we  rely  have  significant  manufacturing  facilities,  concentrations  of  clinical  trial  sites  or  other
business operations. The COVID-19 pandemic could materially affect our operations, including at our headquarters in San Carlos,
California, at our manufacturing facility in Philadelphia, Pennsylvania, which have previously been subject to state executive orders
and shelter-in-place orders, and at our clinical trial sites, as well as the business or operations of our other manufacturers, contract
research organizations, or CROs, or other third parties with whom we conduct business.

Our  business  could  be  adversely  affected  by  health  epidemics  in  regions  where  we  have  offices,  manufacturing  facilities,
concentrations of clinical trial sites or other business operations, and could cause significant disruption in the operations of clinical trial
sites, third party manufacturers and CROs upon whom we rely. For example, starting in December 2019, a novel strain of coronavirus, or
COVID-19, was reported to have surfaced in Wuhan, China and spread to multiple countries, including the U.S. and several European
countries. In March 2020, the World Health Organization declared COVID-19 a global pandemic and the U.S. declared the COVID-19
pandemic a national emergency. Similarly, during that time, the State of California declared a state of emergency related to the spread of
the  COVID-19  pandemic  and  the  health  officers  of  six  San  Francisco  Bay  Area  counties,  including  San  Mateo  County  where  our
headquarters in San Carlos is located, issued shelter-in-place orders. In addition, on March 19, 2020, the Governor of California and the
State  Public  Health  Officer  and  Director  of  the  California  Department  of  Public  Health  ordered  all  individuals  living  in  the  State  of
California  to  stay  at  their  place  of  residence  for  an  indefinite  period  of  time  (subject  to  certain  exceptions  to  facilitate  authorized
necessary activities) to mitigate the impact of the COVID-19 pandemic. Throughout 2020 and 2021, similar executive orders were issued
by state and local governments, and states of emergency had been declared at the state and local level in most jurisdictions throughout
the  U.S.  As  recently  as  April  2022,  ports  and  airports  in  Shanghai,  China  have  been  closed  due  to  another  outbreak  of  COVID-19,
resulting in a lockdown of the city and disruption to export and import activities. In the U.S., many of these executive orders have been
rescinded, however, the Company remains vigilant and continues to monitor the ongoing COVID-19 pandemic closely to determine if
additional actions are required.

Quarantines, shelter-in-place and similar government orders, or the perception that such orders, shutdowns or other restrictions on
the conduct of business operations could occur, related to the COVID-19 pandemic or other infectious diseases could impact personnel at
third-party  manufacturing  facilities  in  the  U.S.  and  other  countries,  or  the  availability  or  cost  of  materials,  which  would  disrupt  our
supply chain. In addition, our clinical trials may be affected by the COVID-19 pandemic. Clinical site initiation, patient enrollment and
patient monitoring may be delayed due to prioritization of hospital resources toward the COVID-19 pandemic. Some sites may no longer
be available to see patients for clinical trials. Some patients may not be able to comply with clinical trial protocols if quarantines impede
patient movement or interrupt healthcare services. Patients may also miss follow-up visits after receiving our therapies during our clinical
trials, which may or may not be rectified by future patient visits and which may result in the exclusion of data from such patients from
the  clinical  trial  data.  Similarly,  our  ability  to  recruit  and  retain  patients  and  principal  investigators  and  site  staff  who,  as  healthcare
providers,  may  have  heightened  exposure  to  the  virus  that  causes  the  COVID-19  pandemic  and  adversely  impact  our  clinical  trial
operations. The COVID-19 pandemic may also affect our ability to recruit treatment-naïve patients into our clinical trials, because those
patients may be more likely to seek standard of care therapies available at local treatment centers rather than enroll in a clinical trial at a
larger hospital.

We  continue  to  monitor  the  impact,  if  any,  of  the  COVID-19  pandemic  on  our  current  and  future  operations,  including  our
regulatory  filing  timelines  and  strategy  as  well  as  our  preparation  for  commercial  launch.  Despite  the  wide-spread  availability  of
COVID-19  vaccines,  it  is  unclear  the  extent  to  which  the  COVID-19  pandemic  (including  future  variants)  will  impact  our  business,
results of operations, financial condition and our future strategic plans as future developments of the outbreak are highly uncertain and
cannot be predicted. New information is constantly emerging concerning the severity of COVID-19 and the actions to contain COVID-
19 or treat its impact, among others. As the COVID-19 pandemic continues for an extended period of time, any restrictions regarding
travel  and  face  to  face  interactions  or  constraints  on  resources,  either  by  us  or  our  contractors,  including  our  CMOs,  may  negatively
impact our regulatory strategy or commercial launch preparations. The COVID-19 pandemic may also impact the FDA and their ability
to  timely  review  our  regulatory  filings  and  conduct  the  pre-approval  inspections  necessary  for  ultimate  approval  of  BLA.  We  cannot
predict at this time whether and how FDA operations may be impacted at relevant times for our planned regulatory submissions.

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Our failure to comply with international data protection laws and regulations could lead to government enforcement actions

and significant penalties against us, and adversely impact our operating results.

European Union, or EU, member states and other foreign jurisdictions, including Switzerland, the United Kingdom and Canada,
have adopted data protection laws and regulations which impose significant compliance obligations on us. Moreover, the collection and
use of personal health data in the EU, which was formerly governed by the provisions of the EU Data Protection Directive, was replaced
with  the  EU  General  Data  Protection  Regulation,  or  the  GDPR,  in  May  2018.  The  GDPR,  which  is  wide-ranging  in  scope,  imposes
several  requirements  relating  to  the  consent  of  the  individuals  to  whom  the  personal  data  relates,  the  information  provided  to  the
individuals,  the  security  and  confidentiality  of  the  personal  data,  data  breach  notification  and  the  use  of  third-party  processors  in
connection with the processing of personal data.

The GDPR also imposes strict rules on the transfer of personal data out of the EU to the U.S., provides an enforcement authority
and imposes large penalties for noncompliance, including the potential for fines of up to €20 million or 4% of the annual global revenues
of  the  noncompliant  company,  whichever  is  greater.  The  GDPR  requirements  apply  not  only  to  third-party  transactions,  but  also  to
transfers of information between us and our subsidiaries. The implementation of the GDPR has increased our responsibility and liability
in relation to personal data that we process, including in clinical trials, and we may in the future be required to put in place additional
mechanisms to ensure compliance with the GDPR, which could divert management’s attention and increase our cost of doing business.
In addition, new regulation or legislative actions regarding data privacy and security (together with applicable industry standards) may
increase our costs of doing business. If we fail to comply with the data protection laws in any EU member country or other jurisdiction,
the data protection authority of such country or other jurisdiction may, in addition to fines, impose sanctions on us, which may include a
prohibition that prevents us from transferring and/or processing personal data of data subjects from such country or other jurisdiction for
a duration determined by the sanctioning authority. Our inability to transfer and/or process personal data of data subjects could preclude
us from conducting clinical trials of our products in the EU member country or other jurisdiction for the duration of the sanction. Our
inability to conduct clinical trials in the EU member country or other jurisdiction for the duration of the sanction may delay and increase
the cost of development of our products, with a material adverse effect on our business. In this regard, we expect that there will continue
to  be  new  proposed  laws,  regulations  and  industry  standards  relating  to  privacy  and  data  protection  in  the  U.S.,  the  EU  and  other
jurisdictions, and we cannot determine the impact such future laws, regulations and standards may have on our business.

Our failure to comply with state and/or national data protection laws and regulations could lead to government enforcement

actions and significant penalties against us, and adversely impact our operating results.

There  are  numerous  other  laws  and  legislative  and  regulatory  initiatives  at  the  federal  and  state  levels  addressing  privacy  and
security  concerns,  and  some  state  privacy  laws  apply  more  broadly  than  the  Health  Insurance  Portability  and  Accountability  Act,  or
HIPAA, and associated regulations. For example, California recently enacted legislation, the California Consumer Privacy Act, or CCPA,
which went into effect January 1, 2020, and was recently amended and expanded by the California Privacy Rights Act, or CPRA, which
will  take  effect  on  January  1,  2023.  The  CCPA  and  CPRA,  among  other  things,  create  new  data  privacy  obligations  for  covered
companies  and  provides  new  privacy  rights  to  California  residents,  including  the  right  to  opt  out  of  certain  disclosures  of  their
information.  The  CCPA  also  created  a  private  right  of  action  with  statutory  damages  for  certain  data  breaches,  thereby  potentially
increasing risks associated with a data breach.

Although the law includes limited exceptions, including for certain information collected as part of clinical trials as specified in
the  law,  it  may  regulate  or  impact  our  processing  of  personal  information  depending  on  the  context.  It  remains  unclear  what,  if  any,
additional modifications will be made to the CPRA by the California legislature or how it will be interpreted. Therefore, the effects of the
CCPA and CPRA are significant and will likely require us to modify our data processing practices and may cause us to incur substantial
costs and expenses to comply.

If  we  engage  in  future  acquisitions  or  strategic  partnerships,  this  may  increase  our  capital  requirements,  dilute  our

stockholders, cause us to incur debt or assume contingent liabilities, and subject us to other risks.

We  may  evaluate  various  acquisitions  and  strategic  partnerships,  including  licensing  or  acquiring  complementary  products,
intellectual  property  rights,  technologies,  or  businesses.  Any  potential  acquisition  or  strategic  partnership  may  entail  numerous  risks,
including:

● increased operating expenses and cash requirements;
● the assumption of additional indebtedness or contingent liabilities;
● the issuance of our equity securities;

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● assimilation  of  operations,  intellectual  property  and  products  of  an  acquired  company  or  product,  including  difficulties

associated with integrating new personnel;

● the diversion of our management’s attention from our existing product programs and initiatives in pursuing such a strategic

merger or acquisition;

● retention of key employees, the loss of key personnel, and uncertainties in our ability to maintain key business relationships;
● risks  and  uncertainties  associated  with  the  other  party  to  such  a  transaction,  including  the  prospects  of  that  party  and  their

existing products or product candidates and regulatory approvals; and

● our inability to generate revenue from acquired technology and/or products sufficient to meet our objectives in undertaking

the acquisition or even to offset the associated acquisition and maintenance costs.

Depending  on  the  size  and  nature  of  future  strategic  acquisitions,  we  may  acquire  assets  or  businesses  that  require  us  to  raise
additional capital or to operate or manage businesses in which we have limited experience. Making larger acquisitions that require us to
raise  additional  capital  to  fund  the  acquisition  will  expose  us  to  the  risks  associated  with  capital  raising  activities.  Acquiring  and
thereafter operating larger new businesses will also increase our management, operating and reporting costs and burdens. In addition, if
we undertake acquisitions, we may issue dilutive securities, assume or incur debt obligations, incur large one-time expenses and acquire
intangible assets that could result in significant future amortization expense. Moreover, we may not be able to locate suitable acquisition
opportunities and this inability could impair our ability to grow or obtain access to technology or products that may be important to the
development of our business. In addition, even if we are able to pursue certain strategic acquisition opportunities, we cannot guarantee
that such acquisitions may completed in a timely manner, if at all, or that all conditions necessary to consummate such transactions will
be satisfied, including the receipt of all required regulatory approvals.

We are currently operating in a period of economic uncertainty and capital markets disruption, which has been significantly
impacted  by  geopolitical  instability,  ongoing  military  conflicts  between  Russia  and  Ukraine  and  Israel  and  Hamas  and  record
inflation. Our business, financial condition and results of operations could be materially adversely affected by any negative impact on
the global economy and capital markets resulting from the conflicts in Ukraine and the Middle East, geopolitical tensions or record
inflation.

U.S. and global markets are experiencing volatility and disruption following the escalation of geopolitical tensions and the start of
the military conflict between Russia and Ukraine. On February 24, 2022, a full-scale military invasion of Ukraine by Russian troops was
reported. Although the length and impact of the ongoing military conflict is highly unpredictable, the conflict in Ukraine could lead to
market disruptions, including significant volatility in commodity prices, credit and capital markets, as well as supply chain interruptions,
which has led to record inflation globally. We are continuing to monitor inflation, the situation in Ukraine and global capital markets and
assessing the potential impacts on our business.

The  global  economy  has  been,  and  may  continue  to  be,  negatively  impacted  by  Russia’s  invasion  of  Ukraine.  As  a  result  of
Russia’s invasion of Ukraine, the U.S., the European Union, the United Kingdom, and other G7 countries, among other countries, have
imposed substantial financial and economic sanctions on certain industry sectors and parties in Russia. Broad restrictions on exports to
Russia  have  also  been  imposed.  These  measures  include:  (i)  comprehensive  financial  sanctions  against  major  Russian  banks;  (ii)
additional  designations  of  Russian  individuals  with  significant  business  interests  and  government  connections;  (iii)  designations  of
individuals and entities involved in Russian military activities; and (iv) enhanced export controls and trade sanctions limiting Russia’s
ability  to  import  various  goods.  Russian  military  actions  and  the  resulting  sanctions  could  continue  to  adversely  affect  the  global
economy and financial markets and lead to instability and lack of liquidity in capital markets, potentially making it more difficult for us
to obtain additional funds.

In addition, on October 7, 2023, Hamas militants and members of other terrorist organizations infiltrated Israel’s southern border
from the Gaza Strip and conducted a series of terror attacks on civilian and military targets. Thereafter, Hamas launched extensive rocket
attacks  on  Israeli  population  and  industrial  centers  located  along  the  Israeli  border  with  the  Gaza  Strip.  Shortly  following  the  attack,
Israel’s security cabinet declared war against Hamas and launched an aerial bombardment of various targets within the Gaza Strip. The
Israeli government subsequently called for the evacuation of over one million residents of the northern part of the Gaza Strip and began a
ground invasion of the Gaza Strip. It is possible that other terrorist and/or regional organizations will join the hostilities as well, including
Hezbollah in Lebanon, and Palestinian military organizations in the West Bank, resulting in a widening of the conflict. The intensity and
duration of Israel’s current war against Hamas is difficult to predict as are such war’s economic implications on the global economy.

There are also current geopolitical tensions with China. Recently, the Biden administration has signed multiple executive orders

regarding China. One particular executive order titled Advancing Biotechnology and Biomanufacturing Innovation for a Sustainable,

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Safe, and Secure American Bioeconomy signed on September 12, 2022 will likely impact the pharmaceutical industry to encourage U.S.
domestic manufacturing of pharmaceutical products. Moreover, there have been Congressional legislative proposals, such as the recent
bill titled the Biosecure Act, to discourage contracting with Chinese companies on the development or manufacturing of pharmaceutical
products.  Any  additional  executive  action,  legislative  action  or  potential  sanctions  with  China  could  materially  impact  our  current
manufacturing partners and our agreements with them, including our MSA with WuXi. For example, in February 2024, the chair and
ranking  member  of  the  House  Select  Committee  on  the  Chinese  Communist  Party,  Representatives  Mike  Gallagher  and  Raja
Krishnamoorthi, respectively, along with Senators Gary Peters and Bill Haggerty sent a letter to the Biden administration requesting that
both  WuXi  AppTec  Co.,  Ltd.,  WuXi’s  parent  company,  and  the  affiliated  WuXi  Biologics  be  added  to  the  Department  of  Defense’s
Chinese  Military  Companies  List  (1260H  list),  the  Department  of  Commerce’s  Bureau  of  Industry  and  Security  Entity  List,  and  the
Department  of  Treasury’s  Non-SDN  Chinese  Military-Industrial  Complex  Companies  List.  While  the  Biden  administration  has  yet  to
take  action  on  this  letter,  adding  either  or  both  previously  mentioned  WuXi  entities  on  any  or  all  of  the  aforementioned  lists  could
materially impact our MSA with WuXi.

Although our business has not been materially impacted by the ongoing military conflicts between Russia and Ukraine or Israel
and Hamas, geopolitical tensions, or record inflation to date, it is impossible to predict the extent to which our operations, or those of our
suppliers and manufacturers, will be impacted in the short and long term, or the ways in which the conflict may impact our business. The
extent and duration of the conflicts in Ukraine and the Middle East, geopolitical tensions, record inflation, sanctions and resulting market
disruptions are impossible to predict, but could be substantial. Any such disruptions may also magnify the impact of other risks described
herein.

We are exposed to fluctuations in currency exchange rates that could negatively impact our financial results and cash flows.

With  the  acquisition  of  Proleukin®  in  May  2023,  a  portion  of  our  business  will  be  conducted  outside  the  United  States.
Furthermore, we are required to make certain future payments under the Proleukin® acquisition agreement that are denominated in non-
US  dollars,  including  a  milestone  payment  to  Clinigen  upon  the  approval  of  lifileucel  in  melanoma  as  well  as  future  deferred
consideration and earnout payments based on Proleukin® sales. As such, we face exposure to adverse movements in foreign currency
exchange rates, including movements in foreign currency for the future milestone payment. These exposures may change over time as
business practices evolve, and they could have a material adverse impact on our results of operations, financial position, and cash flows.
Our primary exposure to movements in foreign currency exchange rates currently relates to non-U.S. dollar denominated sales in Europe,
the United Kingdom, and Asia, and non-U.S. dollar denominated operating expenses and certain assets and liabilities in our operating
subsidiaries.

Climate change or legal, regulatory or market measures to address climate change may negatively affect our business, results

of operations, cash flows and prospects.

We  believe  that  climate  change  has  the  potential  to  negatively  affect  our  business  and  results  of  operations,  cash  flows  and
prospects.  We  are  exposed  to  physical  risks  (such  as  extreme  weather  conditions  or  rising  sea  levels),  risks  in  transitioning  to  a  low-
carbon economy (such as additional legal or regulatory requirements, changes in technology, market risk and reputational risk) and social
and human effects (such as population dislocations and harm to health and well-being) associated with climate change. These risks can
be either acute (short-term) or chronic (long-term).

The adverse impacts of climate change include increased frequency and severity of natural disasters and extreme weather events
such as hurricanes, tornados, wildfires (exacerbated by drought), flooding, and extreme heat. Extreme weather and sea-level rise pose
physical  risks  to  our  facilities  as  well  as  those  of  our  suppliers.  Such  risks  include  losses  incurred  as  a  result  of  physical  damage  to
facilities,  loss  or  spoilage  of  inventory,  and  business  interruption  caused  by  such  natural  disasters  and  extreme  weather  events.  Other
potential  physical  impacts  due  to  climate  change  include  reduced  access  to  high-quality  water  in  certain  regions  and  the  loss  of
biodiversity,  which  could  impact  future  product  development.  These  risks  could  disrupt  our  operations  and  supply  chains,  which  may
result in increased costs.

New legal or regulatory requirements may be enacted to prevent, mitigate, or adapt to the implications of a changing climate and
its  effects  on  the  environment.  These  regulations,  which  may  differ  across  jurisdictions,  could  result  in  us  being  subject  to  new  or
expanded carbon pricing or taxes, increased compliance costs, restrictions on greenhouse gas emissions, investment in new technologies,
increased carbon disclosure and transparency, upgrade of facilities to meet new building codes, and the redesign of utility systems, which
could increase our operating costs, including the cost of electricity and energy used by us. Our supply chain would likely be subject to
these same transitional risks and would likely pass along any increased costs to us.

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Environmental, social and governance matters may impact our business and reputation.

Governmental  authorities,  non-governmental  organizations,  customers,  investors,  external  stakeholders  and  employees  are
increasingly sensitive to environmental, social and governance, or ESG, concerns, such as diversity and inclusion, climate change, water
use, recyclability or recoverability of packaging, and plastic waste. This focus on ESG concerns may lead to new requirements that could
result in increased costs associated with developing, manufacturing and distributing our products. Our ability to compete could also be
affected  by  changing  customer  preferences  and  requirements,  such  as  growing  demand  for  more  environmentally  friendly  products,
packaging  or  supplier  practices,  or  by  failure  to  meet  such  customer  expectations  or  demand.  While  we  strive  to  improve  our  ESG
performance,  we  risk  negative  stockholder  reaction,  including  from  proxy  advisory  services,  as  well  as  damage  to  our  brand  and
reputation, if we do not act responsibly, or if we are perceived to not be acting responsibly in key ESG areas, including equitable access
to medicines and vaccines, product quality and safety, diversity and inclusion, environmental stewardship, support for local communities,
corporate governance and transparency, and addressing human capital factors in our operations. If we do not meet the ESG expectations
of our investors, customers and other stakeholders, we could experience reduced demand for our products, loss of customers, and other
negative impacts on our business and results of operations.

Risks Related to Government Regulation

We are subject to extensive regulation, which can be costly, time consuming and can subject us to unanticipated delays; even
after obtaining regulatory approval for some of our products and/or product candidates, those products and/or product candidates
may still face regulatory difficulties.

Our  products,  potential  products,  cell  processing  and  manufacturing  activities,  are  subject  to  comprehensive  regulation  by  the
FDA  in  the  U.S.  and  by  comparable  authorities  in  other  countries.  The  process  of  obtaining  FDA  and  other  required  regulatory
approvals,  including  foreign  approvals,  is  expensive  and  often  takes  many  years  and  can  vary  substantially  based  upon  the  type,
complexity  and  novelty  of  the  products  involved.  In  addition,  regulatory  agencies  may  lack  experience  with  our  technologies  and
products,  which  may  lengthen  the  regulatory  review  process,  increase  our  development  costs  and  delay  or  prevent  their
commercialization.

Prior to Amtagvi™, no adoptive cell therapy using TIL had been approved for marketing by the FDA. Consequently, there is no
precedent for the successful commercialization of products based on our technologies. In addition, we have had only limited experience
in filing and pursuing applications necessary to gain regulatory approvals, which may impede our ability to obtain timely FDA approvals,
if at all. We have completed the process for FDA approval for one adoptive cell therapy product. We will not be able to commercialize
any of our potential products until we obtain FDA approval, and so any delay in obtaining, or inability to obtain, FDA approval would
harm our business.

If we fail to comply with regulatory requirements at any stage, whether before or after marketing approval is obtained, we may
face  a  number  of  regulatory  consequences,  including  refusal  to  approve  pending  applications,  license  suspension  or  revocation,
withdrawal of an approval, imposition of a clinical hold or termination of clinical trials, warning letters, untitled letters, modification of
promotional materials or labeling, provision of corrective information, imposition of post-market requirements, including the need for
additional testing, imposition of distribution or other restrictions under a REMS, product recalls, product seizures or detentions, refusal to
allow imports or exports, total or partial suspension of production or distribution, FDA debarment, injunctions, fines, consent decrees,
corporate integrity agreements, debarment from receiving government contracts, and new orders under existing contracts, exclusion from
participation  in  federal  and  state  healthcare  programs,  restitution,  disgorgement,  or  civil  or  criminal  penalties,  including  fines  and
imprisonment, and adverse publicity, among other adverse consequences. Additionally, we may not be able to obtain the labeling claims
necessary or desirable for the promotion of our products or product candidates. We may also be required to undertake post-marketing
trials.  In  addition,  if  we  or  others  identify  side  effects  after  any  of  our  adoptive  cell  therapies  are  on  the  market,  or  if  manufacturing
problems occur, regulatory approval may be withdrawn, and reformulation of our products may be required.

The FDA regulatory approval process is lengthy and time-consuming, and we may experience significant delays in the clinical

development and regulatory approval of our product candidates.

We completed our first submission of a rolling BLA to the FDA for lifileucel in March 2023. The FDA accepted our BLA for
AmtagviTM  for  patients  with  advanced  melanoma  in  May  2023  and  granted  lifileucel  Priority  Review.  The  FDA  originally  assigned
November 25, 2023 as the target action date for a decision under PDUFA, however, the FDA recently reassigned February 24, 2024 as
the  revised  target  action  date.  A  BLA  must  include  extensive  preclinical  and  clinical  data  and  supporting  information  to  establish  the
product candidate’s safety and effectiveness for each desired indication. Our BLA submissions and expected timelines for our product
candidates are based on our interpretation of communications received from the FDA to date regarding each product candidate and are

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subject to revision if additional communications are received from the FDA. As such, we may experience delays with FDA approval of
additional BLAs.

We have announced our intention to conduct registrational trials for both advanced NSCLC and cervical cancer with our LN-145
and lifileucel product candidates, respectively. These trials, which we refer to as IOV-LUN-202 Cohorts 1 and 2 in the case of advanced
NSCLC and C-145-04 Cohort 2 in the case of cervical cancer, are currently underway and have been the subject of formal FDA meetings
and communications. For instance, on December 22, 2023, the FDA placed a clinical hold on the IOV-LUN-202 trial in response to a
recently  reported  Grade  5  (fatal)  serious  adverse  event  potentially  related  to  the  non-myeloablative  lymphodepletion  pre-conditioning
regimen, and we have paused enrollment and the LN-145 treatment regimen for new patients in IOV-LUN-202 during the clinical hold.
Our current beliefs regarding the registration pathway for the lifileucel and LN-145 product candidates in these indications are based on
our interpretation of communications with the FDA to date and our efforts to address such communications, which may be incorrect. Our
statements  that  the  clinical  trial  may  support  a  BLA  submission  also  assume  that  our  as-adjusted  clinical  trial  has  addressed  the
additional requests and feedback by the FDA. Further, enrollment in these clinical trials may need to be further adjusted based on future
feedback  from  the  FDA,  changes  in  the  competitive  environment,  or  other  regulatory  agency  input.  Protocol  revisions  may  have  an
adverse  effect  on  the  results  reported  to  date.  Changes  to  implement  an  independent  review  committee  and  assay  validation  and
implementation, and the data within these clinical trials may not ultimately be supportive of product approval, all of which could result in
significant  delays  to  our  currently  anticipated  timeline  for  development  and  approval  of  lifileucel  and  LN-145  product  candidates  or
prevent their approval.  

A BLA must also include significant information regarding the chemistry, manufacturing and controls for the product. We expect
the  novel  nature  of  our  product  candidates  to  create  further  challenges  in  obtaining  regulatory  approval.  For  example,  the  FDA  has
limited experience with commercial development of cell therapies for cancer. We may also not be able to successfully utilize the BTD
designation  we  have  received  for  metastatic  cervical  cancer  to  successfully  complete  the  development  and  commercialization  of
AmtagviTM  for  such  indication.  We  may  not  be  able  to  reach  agreement  with  the  FDA  on  an  interpretation  of  outcomes  from  our
meetings, including meetings we have held with the FDA in relation to our C-145-04 clinical trial and future meetings. In addition, as
previously  disclosed,  Iovance  began  startup  activities  for  a  confirmatory  Phase  3  clinical  trial,  TILVANCE-301,  of  lifileucel  in
combination with pembrolizumab in frontline metastatic melanoma in late 2022. The FDA previously granted Fast Track Designation for
lifileucel in combination with pembrolizumab for the treatment of immune checkpoint inhibitor naïve metastatic melanoma. However,
the regulatory approval pathway for our product candidates may be uncertain, complex, expensive and lengthy, and approval may not be
obtained.  

We  may  also  experience  delays,  including  delays  arising  from  the  need  to  increase  enrollment,  in  completing  planned  clinical

trials for a variety of reasons, including delays related to:

● the availability of financial resources to commence and complete the planned clinical trials;
● reaching  agreement  on  acceptable  contract  terms  with  prospective  CROs  and  clinical  trial  sites,  the  terms  of  which  can  be

subject to extensive negotiation and may vary significantly among different CROs and clinical trial sites;

● obtaining approval at each clinical trial site by an independent IRB, or central IRB;
● recruiting suitable patients to participate in a clinical trial;
● having patients complete a clinical trial or return for post-treatment follow-up;
● clinical trial sites deviating from clinical trial protocol or dropping out of a clinical trial;
● adding new clinical trial sites;
● manufacturing sufficient quantities of qualified materials under cGMP and applying them on a subject-by-subject basis for

use in clinical trials; or

● timely implementing or validating changes to our manufacturing or quality control processes and methods needed to address

FDA feedback.

We could also encounter delays if there are unresolved ethical issues associated with physicians enrolling patients in clinical trials
of our product candidates in lieu of prescribing existing treatments that have established safety and efficacy profiles. Further, a clinical
trial may be suspended or terminated by us, the IRBs for the institutions in which such clinical trials are being conducted by the FDA or
other regulatory authorities, or recommended for suspension or termination by DSMBs due to a number of factors, including failure to
conduct the clinical trial in accordance with regulatory requirements or our clinical protocols, inspection of the clinical trial operations or
clinical trial site by the FDA or other regulatory authorities resulting in the imposition of a clinical hold, including as a result of genetic
editing  methods,  unforeseen  safety  issues  or  adverse  side  effects,  failure  to  demonstrate  a  benefit  from  using  a  product  candidate,
changes in governmental regulations or administrative actions or lack of adequate funding to continue the clinical trial. If we experience

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termination  of,  or  delays  in  the  completion  of,  any  clinical  trial  of  our  product  candidates,  the  commercial  prospects  for  our  product
candidates will be harmed, and our ability to generate product revenue will be delayed. In addition, any delays in completing our clinical
trials will increase our costs, slow down our product development and approval process and jeopardize our ability to commence product
sales and generate revenue.

Obtaining and maintaining regulatory approval of our product candidates in one jurisdiction does not mean that we will be

successful in obtaining regulatory approval of our product candidates in other jurisdictions.

In order to market and sell our products outside the U.S., we or our third-party collaborators may be required to obtain or maintain
separate  marketing  approvals  and  comply  with  numerous  and  varying  regulatory  requirements.  Obtaining  and  maintaining  regulatory
approval of our product candidates in one jurisdiction does not guarantee that we will be able to obtain or maintain regulatory approval in
any  other  jurisdiction,  while  a  failure  or  delay  in  obtaining  regulatory  approval  in  one  jurisdiction  may  have  a  negative  effect  on  the
regulatory approval process in others. Approval policies and requirements may vary among jurisdictions. For example, even if the FDA
grants  marketing  approval  of  a  product  candidate,  comparable  regulatory  authorities  in  foreign  jurisdictions  must  also  approve  the
manufacturing, marketing and promotion of the product candidate in those countries. Approval procedures vary among jurisdictions and
can  involve  requirements  and  administrative  review  periods  different  from,  and  greater  than,  those  in  the  U.S.,  including  additional
preclinical studies or clinical trials as clinical studies conducted in one jurisdiction may not be accepted by regulatory authorities in other
jurisdictions. In many jurisdictions outside the U.S., a product candidate must be approved for reimbursement before it can be approved
for  sale  in  that  jurisdiction.  In  some  cases,  the  price  that  we  intend  to  charge  for  our  products  is  also  subject  to  approval.  We  or  our
collaborators may not be able to file for regulatory approval of our product candidates in international jurisdictions or obtain approvals
from  regulatory  authorities  outside  the  U.S.  on  a  timely  basis,  if  at  all.  The  FDA  or  other  regulatory  agencies  may  also  withdraw
approval for previously approved products.

We  may  also  submit  marketing  applications  in  other  countries.  Regulatory  authorities  in  jurisdictions  outside  of  the  U.S.  have
requirements for approval of product candidates with which we must comply prior to marketing in those jurisdictions. Obtaining foreign
regulatory approvals and compliance with foreign regulatory requirements could result in significant delays, difficulties and costs for us
and could delay or prevent the introduction of our products in certain countries. If we fail to comply with the regulatory requirements in
international markets and/or receive applicable marketing approvals, our target market will be reduced and our ability to realize the full
market potential of our product candidates will be harmed.

We  are,  and  if  we  receive  regulatory  approval  of  our  product  candidates,  will  continue  to  be  subject  to  ongoing  regulatory
obligations and continued regulatory review, which may result in significant additional expense and we may be subject to penalties if
we fail to comply with regulatory requirements or experience unanticipated problems with our product candidates.

Any regulatory approvals that we receive for our product candidates will require ongoing surveillance to monitor the safety and
efficacy  of  the  product  candidate.  The  FDA  may  also  require  a  REMS  to  approve  our  product  candidates,  which  could  entail
requirements  for  a  medication  guide,  physician  communication  plans  or  additional  elements  to  ensure  safe  use,  such  as  restricted
distribution  methods,  patient  registries  and  other  risk  minimization  tools.  The  FDA  may  also  require  post-approval  Phase  4  studies.
Moreover, the FDA and comparable foreign regulatory authorities will continue to closely monitor the safety profile of any product even
after approval. If the FDA or comparable foreign regulatory authorities become aware of new safety information after approval of any of
our product candidates, they may withdraw approval, require labeling changes or establishment of a REMS or similar strategy, impose
significant restrictions on a product’s indicated uses or marketing, or impose ongoing requirements for potentially costly post-approval
studies or post-market surveillance. Any such restrictions could limit sales of the product.

In  addition,  we,  our  contractors,  and  our  collaborators  are  and  will  remain  responsible  for  FDA  compliance,  including
requirements  related  to  product  design,  testing,  clinical  trials  and  preclinical  studies  approval,  manufacturing  processes  and  quality,
labeling, packaging, distribution, adverse event and deviation reporting, storage, advertising, marketing, promotion, sale, import, export,
submissions  of  safety  and  other  post-marketing  information  and  reports  such  as  deviation  reports,  establishment  registration,  product
listing, annual user fees, and recordkeeping for our product candidates.

We and any of our collaborators, including our contract manufacturers, could be subject to periodic unannounced inspections by
the  FDA  to  monitor  and  ensure  compliance  with  regulatory  requirements.  Application  holders  must  further  notify  the  FDA,  and
depending on the nature of the change, obtain FDA pre-approval for product and manufacturing changes. The cost of compliance with
post-approval regulations may have a negative effect on our operating results and financial condition.

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Later discovery of previously unknown problems with our product candidates, including adverse events of unanticipated severity
or frequency, that the product is less effective than previously thought, problems with our third-party manufacturers or manufacturing
processes, or failure to comply with regulatory requirements, may result in, among other things:

● restrictions on the marketing, distribution, or manufacturing of our product candidates, withdrawal of the product from the

market, or voluntary or mandatory product recalls;

● restrictions  on  the  labeling  of  our  product  candidates,  including  required  additional  warnings,  such  as  black  box  warnings,

contraindications, precautions, and restrictions on the approved indication or use;

● modifications to promotional pieces;
● changes to product labeling or the way the product is administered;
● liability for harm caused to patients or subjects;
● fines, restitution, disgorgement, warning letters, untitled letters, or holds on or termination of clinical trials;
● refusal  by  the  FDA  to  approve  pending  applications  or  supplements  to  approved  applications  filed  by  us  or  suspension  or

revocation of license approvals;

● product seizure or detention, or refusal to permit the import or export of our product candidates;
● injunctions or the imposition of civil or criminal penalties, including imprisonment;
● FDA debarment, debarment from government contracts, and refusal of future orders under existing contracts, exclusion from

federal healthcare programs, consent decrees, or corporate integrity agreements;

● regulatory  authority  issuance  of  safety  alerts,  Dear  Healthcare  Provider  letters,  press  releases,  or  other  communications

containing warnings or other safety information about the biologic;

● FDA restrictions on manufacturing or distribution if there is an inability to trace the source of a problem due to the nature of

cell therapy;

● withdrawal of regulatory approvals for the Proleukin® product;
● reputational harm; or
● the product becoming less competitive.

Any  of  these  events  could  further  have  other  material  and  adverse  effects  on  our  operations  and  business  and  could  adversely

impact our stock price and could significantly harm our business, financial condition, results of operations, and prospects.

The  FDA’s  and  other  regulatory  authorities’  policies  may  change,  and  additional  government  regulations  may  be  enacted  that
could  prevent,  limit  or  delay  regulatory  approval  of  our  product  candidates.  We  cannot  predict  the  likelihood,  nature  or  extent  of
government  regulation  that  may  arise  from  future  legislation  or  administrative  action,  either  in  the  U.S.  or  abroad.  If  we  are  slow  or
unable to adapt to changes in existing requirements or the adoption of new requirements or policies, or if we are not able to maintain
regulatory  compliance,  we  may  lose  any  marketing  approval  that  we  may  have  obtained,  be  subject  to  other  regulatory  enforcement
action, and we may not achieve or sustain profitability.

If  we  fail  to  comply  with  federal  and  state  healthcare  and  promotional  laws,  including  fraud  and  abuse  and  information
privacy  and  security  laws,  we  could  face  substantial  penalties  and  our  business,  financial  condition,  results  of  operations,  and
prospects could be adversely affected.

As a biopharmaceutical company, we are subject to many federal and state healthcare laws, including the federal AKS, the federal
civil and criminal FCA, the civil monetary penalties statute, the Medicaid Drug Rebate statute and other price reporting requirements, the
Veterans Health Care Act of 1992, the federal Health Insurance Portability and Accountability Act of 1996 (as amended by the Health
Information Technology for Economics and Clinical Health Act), the Foreign Corrupt Practices Act of 1977, the Patient Protection and
Affordable Care Act of 2010, and similar state laws. Even though we do not and will not control referrals of healthcare services or bill
directly to Medicare, Medicaid, or other third-party payors, certain federal and state healthcare laws and regulations pertaining to fraud
and abuse and patients’ rights are and will be applicable to our business. If we do not comply with all applicable fraud and abuse laws,
we may be subject to enforcement by both the federal government and the states in which we conduct our business.

Laws and regulations require calculation and reporting of complex pricing information for prescription drugs, and compliance will
require us to invest in significant resources and develop a price reporting infrastructure or depend on third parties to compute and report
our  drug  pricing.  Pricing  reported  to  CMS  must  be  certified.  Non-compliant  activities  expose  us  to  FCA  risk  if  they  result  in
overcharging agencies, underpaying rebates to agencies, or causing agencies to overpay providers.

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If we or our operations are found to be in violation of any federal or state healthcare law, or any other governmental regulations
that apply to us, we may be subject to penalties, including civil, criminal, and administrative penalties, damages, fines, disgorgement,
debarment  from  government  contracts,  refusal  of  orders  under  existing  contracts,  exclusion  from  participation  in  U.S.  federal  or  state
health  care  programs,  corporate  integrity  agreements,  and  the  curtailment  or  restructuring  of  our  operations,  any  of  which  could
materially  adversely  affect  our  ability  to  operate  our  business  and  our  financial  results.  If  any  of  the  physicians  or  other  healthcare
providers or entities with whom we expect to do business, including our collaborators, is found not to be in compliance with applicable
laws, they may be subject to criminal, civil, or administrative sanctions, including but not limited to, exclusions from participation in
government healthcare programs, which could also materially affect our business.

In  particular,  if  we  are  found  to  have  impermissibly  promoted  any  of  our  product  candidates,  we  may  become  subject  to
significant liability and government fines. We, and any of our collaborators, must comply with requirements concerning advertising and
promotion for any of our product candidates for which we or they obtain marketing approval. Promotional communications with respect
to  therapeutics  are  subject  to  a  variety  of  legal  and  regulatory  restrictions  and  continuing  review  by  the  FDA,  Department  of  Justice,
Department of Health and Human Services’ Office of Inspector General, state attorneys general, members of Congress, and the public.
When the FDA or comparable foreign regulatory authorities issue regulatory approval for a product candidate, the regulatory approval is
limited to those specific uses and indications for which a product is approved. If we are not able to obtain FDA approval for desired uses
or  indications  for  our  products  and  product  candidates,  we  may  not  market  or  promote  our  products  for  those  indications  and  uses,
referred to as off-label uses, and our business may be adversely affected. We further must be able to sufficiently substantiate any claims
that we make for our products including claims comparing our products to other companies’ products and must abide by the FDA’s strict
requirements regarding the content of promotion and advertising.

While physicians may choose to prescribe products for uses that are not described in the product’s labeling and for uses that differ
from  those  tested  in  clinical  trials  and  approved  by  the  regulatory  authorities,  we  are  prohibited  from  marketing  and  promoting  the
products  for  indications  and  uses  that  are  not  specifically  approved  by  the  FDA.  These  off-label  uses  are  common  across  medical
specialties  and  may  constitute  an  appropriate  treatment  for  some  patients  in  varied  circumstances.  Regulatory  authorities  in  the  U.S.
generally do not restrict or regulate the behavior of physicians in their choice of treatment within the practice of medicine. Regulatory
authorities do, however, restrict communications by biopharmaceutical companies concerning off-label use.

The FDA and other agencies actively enforce the laws and regulations regarding product promotion, particularly those prohibiting
the  promotion  of  off-label  uses,  and  a  company  that  is  found  to  have  improperly  promoted  a  product  may  be  subject  to  significant
sanctions. The federal government has levied large civil and criminal fines against companies for alleged improper promotion and has
enjoined several companies from engaging in off-label promotion. The FDA has also requested that companies enter into consent decrees
of permanent injunctions under which specified promotional conduct is changed or curtailed. Thus, we and any of our collaborators will
not be able to promote any products we develop for indications or uses for which they are not approved.

In the U.S., engaging in the impermissible promotion of our products, following approval, for off-label uses can also subject us to
false claims and other litigation under federal and state statutes, including fraud and abuse and consumer protection laws, which can lead
to  civil  and  criminal  penalties  and  fines,  agreements  with  governmental  authorities  that  materially  restrict  the  manner  in  which  we
promote or distribute therapeutic products and do business through, for example, corporate integrity agreements, suspension or exclusion
from participation in federal and state healthcare programs, and debarment from government contracts and refusal of future orders under
existing contracts. These false claims statutes include the federal civil False Claims Act, which allows any individual to bring a lawsuit
against a biopharmaceutical company on behalf of the federal government alleging submission of false or fraudulent claims or causing
others to present such false or fraudulent claims, for payment by a federal program such as Medicare or Medicaid. If the government
decides  to  intervene  and  prevails  in  the  lawsuit,  the  individual  will  share  in  the  proceeds  from  any  fines  or  settlement  funds.  If  the
government declines to intervene, the individual may pursue the case alone. These False Claims Act lawsuits against manufacturers of
drugs and biologics have increased significantly in volume and breadth, leading to several substantial civil and criminal settlements, up
to  $3.0  billion,  pertaining  to  certain  sales  practices  and  promoting  off-label  uses.  In  addition,  False  Claims  Act  lawsuits  may  expose
manufacturers to follow-on claims by private payors based on fraudulent marketing practices. This growth in litigation has increased the
risk that a biopharmaceutical company will have to defend a false claim action, pay settlement fines or restitution, as well as criminal and
civil penalties, agree to comply with burdensome reporting and compliance obligations, and be excluded from Medicare, Medicaid, or
other federal and state healthcare programs. If we or our future collaborators do not lawfully promote our approved products, if any, we
may  become  subject  to  such  litigation  and,  if  we  do  not  successfully  defend  against  such  actions,  those  actions  may  have  a  material
adverse effect on our business, financial condition, results of operations and prospects.

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Although an effective compliance program can mitigate the risk of investigation and prosecution for violations of these laws, the
risks  cannot  be  entirely  eliminated.  Moreover,  achieving  and  sustaining  compliance  with  applicable  federal  and  state  fraud  laws  may
prove  costly.  Any  action  against  us  for  violation  of  these  laws,  even  if  we  successfully  defend  against  it,  could  cause  us  to  incur
significant legal expenses and divert our management’s attention from the operation of our business.

Coverage  and  reimbursement  may  be  limited  or  unavailable  in  certain  market  segments  for  our  product  candidates,  which

could make it difficult for us to sell our product candidates profitably.

In both domestic and foreign markets, sales of our product candidates, if approved, depend on the availability of coverage and
adequate  reimbursement  from  third-party  payors.  Such  third-party  payors  include  government  health  programs  such  as  Medicare  and
Medicaid, managed care providers, private health insurers, and other organizations. In addition, because our product candidates represent
new approaches to the treatment of cancer, we cannot accurately estimate the potential revenue from our product candidates.

Patients who are provided medical treatment for their conditions generally rely on third-party payors to reimburse all or part of the
costs associated with their treatment. Obtaining coverage and adequate reimbursement from governmental healthcare programs, such as
Medicare and Medicaid, and commercial payors is critical to new product acceptance.

Government  authorities  and  third-party  payors  decide  which  drugs  and  treatments  they  will  cover  and  the  amount  of
reimbursement.  Coverage  decisions  may  depend  upon  clinical  and  economic  standards  that  disfavor  new  drug  products  when  more
established  or  lower  cost  therapeutic  alternatives  are  already  available  or  subsequently  become  available.  If  reimbursement  is  not
available, or is available only to limited levels, our product candidates may be competitively disadvantaged, and we, or our collaborators,
may  not  be  able  to  successfully  commercialize  our  product  candidates.  Even  if  coverage  is  provided,  the  approved  reimbursement
amount may not be high enough to allow us, or our collaborators, to establish or maintain a market share sufficient to realize a sufficient
return  on  our  or  their  investments.  Alternatively,  securing  favorable  reimbursement  terms  may  require  us  to  compromise  pricing  and
prevent us from realizing an adequate margin over cost. Reimbursement by a third-party payor may depend upon a number of factors,
including, but not limited to, the third-party payor’s determination that use of a product is:

● a covered benefit under its health plan;
● safe, effective and medically necessary;
● appropriate for the specific patient;
● cost-effective; and
● neither experimental nor investigational.

Obtaining coverage and reimbursement approval of a product from a government or other third-party payor is a time-consuming
and costly process that could require us to provide to the payor supporting scientific, clinical and cost-effectiveness data for the use of
our products. Even if we obtain coverage for a given product, the resulting reimbursement payment rates might not be adequate for us to
achieve or sustain profitability or may require co-payments that patients find unacceptably high. Moreover, the factors noted above have
continued to be the focus of policy and regulatory debate that has, thus far, shown the potential for movement towards permanent policy
changes; this trend is apt to continue, and may result in more or less favorable impacts on pricing. Patients are unlikely to use our product
candidates  unless  coverage  is  provided,  and  reimbursement  is  adequate  to  cover  a  significant  portion  of  the  cost  of  our  product
candidates.

In the U.S., no uniform policy of coverage and reimbursement for products exists among third-party payors. Therefore, coverage
and reimbursement for products can differ significantly from payor to payor. As a result, the coverage determination process is often a
time-consuming and costly process that will require us to provide scientific and clinical support for the use of our product candidates to
each payor separately, with no assurance that coverage and adequate reimbursement will be obtained.

Prices  paid  for  a  drug  also  vary  depending  on  the  class  of  trade.  Prices  charged  to  government  customers  are  subject  to  price
controls, including ceilings, and private institutions obtain discounts through group purchasing organizations. Net prices for drugs may
be further reduced by mandatory discounts or rebates required by government healthcare programs and demanded by private payors. It is
also  not  uncommon  for  market  conditions  to  warrant  multiple  discounts  to  different  customers  on  the  same  unit,  such  as  purchase
discounts to institutional care providers and rebates to the health plans that pay them, which reduces the net realization on the original
sale.

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In  addition,  federal  programs  impose  penalties  on  manufacturers  of  drugs  marketed  under  an  NDA  or  BLA,  in  the  form  of
mandatory additional rebates and/or discounts if commercial prices increase at a rate greater than the Consumer Price Index-Urban, and
these rebates and/or discounts, which can be substantial, may impact our ability to raise commercial prices. Regulatory authorities and
third-party  payors  have  attempted  to  control  costs  by  limiting  coverage  and  the  amount  of  reimbursement  for  particular  medications,
which  could  affect  our  ability  or  that  of  our  collaborators  to  sell  our  product  candidates  profitably.  These  payors  may  not  view  our
products, if any, as cost-effective, and coverage and reimbursement may not be available to our customers, or those of our collaborators,
or may not be sufficient to allow our products, if any, to be marketed on a competitive basis. Cost control initiatives could cause us, or
our collaborators, to decrease, discount, or rebate a portion of the price we, or they, might establish for products, which could result in
lower than anticipated product revenues. If the realized prices for our products, if any, decrease or if governmental and other third-party
payors do not provide adequate coverage or reimbursement, our prospects for revenue and profitability will suffer. Moreover, the recent
and  ongoing  series  of  congressional  hearings  relating  to  drug  pricing  has  presented  heightened  attention  to  the  biopharmaceutical
industry, creating the potential for political and public pressure, while the potential for resulting legislative or policy changes presents
uncertainty.

Assuming coverage is approved, the resulting reimbursement payment rates might not be adequate. If payors subject our product
candidates to maximum payment amounts or impose limitations that make it difficult to obtain reimbursement, providers may choose to
use  therapies  which  are  less  expensive  when  compared  to  our  product  candidates.  Additionally,  if  payors  require  high  copayments,
beneficiaries  may  decline  prescriptions  and  seek  alternative  therapies.  We  may  need  to  conduct  post-marketing  studies  in  order  to
demonstrate the cost-effectiveness of any future products to the satisfaction of hospitals and other target customers and their third-party
payors. Such studies might require us to commit a significant amount of management time and financial and other resources. Our future
products might not ultimately be considered cost-effective. Adequate third-party coverage and reimbursement might not be available to
enable us to maintain price levels sufficient to realize an appropriate return on investment in product development.

Third-party  payors,  whether  domestic  or  foreign,  or  governmental  or  commercial,  are  developing  increasingly  sophisticated
methods of controlling healthcare costs. In addition, third-party payors are requiring higher levels of evidence of the benefits and clinical
outcomes of new technologies and are challenging the prices charged. We, and our collaborators, cannot be sure that coverage will be
available  for  any  product  candidate  that  we,  or  they,  commercialize  and,  if  available,  that  the  reimbursement  rates  will  be  adequate.
Further,  the  net  reimbursement  for  drug  products  may  be  subject  to  additional  reductions  if  there  are  changes  to  laws  that  presently
restrict imports of drugs from countries where they may be sold at lower prices than in the U.S. An inability to promptly obtain coverage
and  adequate  payment  rates  from  both  government-funded  and  private  payors  for  any  our  product  candidates  for  which  we  obtain
marketing  approval  could  have  a  material  adverse  effect  on  our  operating  results,  our  ability  to  raise  capital  needed  to  commercialize
products, and our overall financial condition.

There  have  been,  and  likely  will  continue  to  be,  legislative  and  regulatory  proposals  at  the  federal  and  state  levels  directed  at
broadening the availability of healthcare and containing or lowering the cost of healthcare. We cannot predict the initiatives that may be
adopted in the future. The continuing efforts of the government, insurance companies, managed care organizations and other payors of
healthcare services to contain or reduce costs of healthcare and/or impose price controls may adversely affect:

● the demand for our product candidates if we obtain regulatory approval;
● our ability to set a price that we believe is fair for our products;
● our ability to generate revenue and achieve or maintain profitability;
● the level of taxes that we are required to pay; and
● the availability of capital.

Any reduction in reimbursement from Medicare or other government programs may result in a similar reduction in payments from
private payors, which may adversely affect our future profitability. A particular challenge for our product candidates arises from the fact
that they will primarily be used in an inpatient setting. Inpatient reimbursement generally relies on stringent packaging rules that may
mean  that  there  is  no  separate  payment  for  our  product  candidates.  Additionally,  data  used  to  set  the  payment  rates  for  inpatient
admissions  is  usually  several  years  old  and  would  not  take  into  account  all  of  the  additional  therapy  costs  associated  with  the
administration of our product candidates. If special rules are not created for reimbursement for immunotherapy treatments such as our
product candidates, hospitals might not receive enough reimbursement to cover their costs of treatment, which will have a negative effect
on their adoption of our product candidates.

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We  are  subject  to  new  legislation,  regulatory  proposals,  and  healthcare  payor  initiatives  that  may  increase  our  costs  of

compliance, and adversely affect our ability to market our products, obtain collaborators, and raise capital.

In the U.S. and some foreign jurisdictions, there have been a number of legislative and regulatory changes and proposed changes
regarding  the  healthcare  system  that  could  prevent  or  delay  marketing  approval  of  our  product  candidates,  restrict  or  regulate  post-
approval activities, and affect our ability, or the ability of our collaborators, to profitably sell any products for which we obtain marketing
approval. We expect that current laws, as well as other healthcare reform measures that may be adopted in the future, may result in more
rigorous coverage criteria and in additional downward pressure on the price that we, or our collaborators, may receive for any approved
products.

Since enactment of the Patient Protection and Affordable Care Act, as amended, or the ACA, in 2010, in both the U.S. and certain
foreign  jurisdictions,  there  have  been  a  number  of  legislative  and  regulatory  changes  to  the  health  care  system  that  could  impact  our
ability  to  sell  our  products  profitably.  In  August  2011,  the  Budget  Control  Act  of  2011,  among  other  things,  created  measures  for
spending reductions by Congress. A Joint Select Committee on Deficit Reduction, tasked with recommending a targeted deficit reduction
of at least $1.2 trillion for the years 2013 through 2021, was unable to reach required goals, thereby triggering the legislation’s automatic
reduction to several government programs. This includes aggregate reductions of Medicare payments to providers up to 2% per fiscal
year, which went into effect on April 1, 2013, and were to remain in effect until 2024. The Bipartisan Budget Act of 2015 extended the
2% sequestration to 2025. In January 2013, the American Taxpayer Relief Act of 2012, or ATRA, was approved which, among other
things,  reduced  Medicare  payments  to  several  providers,  with  primary  focus  on  the  hospital  outpatient  setting  and  ancillary  services,
including hospitals, imaging centers and cancer treatment centers, and increased the statute of limitations period for the government to
recover overpayments to providers from three to five years. On January 20, 2017, the Trump administration signed an Executive Order
directing  federal  agencies  with  authorities  and  responsibilities  under  the  ACA  to  waive,  defer,  grant  exemptions  from,  or  delay  the
implementation of any provision of the ACA that would impose a fiscal or regulatory burden on states, individuals, healthcare providers,
health  insurers,  or  manufacturers  of  pharmaceuticals  or  medical  devices,  and,  for  that  reason,  some  final  regulations  have  yet  to  take
effect.  In  December  2017,  Congress  repealed  the  individual  mandate  for  health  insurance  required  by  the  ACA  and  could  consider
further legislation to repeal other elements of the ACA. At the end of 2017, CMS promulgated regulations that reduce the amount paid to
hospitals  for  outpatient  drugs  purchased  under  the  340B  program,  and  some  states  have  enacted  transparency  laws  requiring
manufacturers to report information on drug prices and price increases. In June 2021, the Supreme Court issued its opinion in California
v. Texas, upholding the constitutionality of the ACA.

Additional federal and state healthcare reform measures may be adopted in the future that may result in more rigorous coverage
criteria, increased regulatory burdens and operating costs, decreased net revenue from our pharmaceutical products, decreased potential
returns from our development efforts, and additional downward pressure on the price that we receive for any approved drug. There is
also an increasing focus on the price of drugs, both at the state and federal levels, and it is likely that additional pricing controls will be
enacted and could harm our business, financial condition and results of operations. For instance, states such as California have begun
enacting transparency laws aimed at curbing drug price increases and with the change in administration it is possible that President Biden
may  issue  executive  orders  with  the  potential  to  change  a  number  of  prior  executive  branch  actions  on  drug  pricing.  We  continue  to
monitor the potential impact of proposals and recently enacted legislation to lower prescription drug costs at the federal and state level.
For example, the Inflation Reduction Act, or the IRA, was signed into law in August 2022 by President Biden, which makes significant
changes to how drugs are covered and paid for under the Medicare program, including the creation of financial penalties for drugs whose
prices rise faster than the rate of inflation, redesign of the Medicare Part D program to require manufacturers to bear more of the liability
for certain drug benefits, and government price-setting for certain Medicare Part D drugs, starting in 2026, and Medicare Part B drugs
starting  in  2028.  We  are  evaluating  what  effect,  if  any,  the  IRA  may  have  on  our  business.  Any  reduction  in  reimbursement  from
Medicare  or  other  government  healthcare  programs  may  result  in  a  similar  reduction  in  payments  from  private  payors.  The
implementation of cost containment measures or other healthcare reforms may prevent us from being able to generate revenue, attain
profitability or commercialize our products.

Legislative and regulatory proposals may also be made to expand post-approval requirements and restrict sales and promotional
activities for drugs. We cannot be sure whether additional legislative changes will be enacted, or whether the FDA regulations, guidance,
or interpretations will be changed, or what the impact of such changes on the marketing approvals of our product candidates, if any, may
be. In addition, increased scrutiny by Congress of the FDA’s approval process may significantly delay or prevent marketing approval, as
well as subject us to more stringent product labeling and post-marketing testing and other requirements.

In addition, there have been a number of other policy, legislative and regulatory proposals aimed at changing the pharmaceutical
industry. The U.S. government, state legislatures and foreign governmental entities have shown significant interest in implementing cost
containment programs to limit the growth of government-paid healthcare costs, including price controls, restrictions on reimbursement

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and coverage and requirements for substitution of generic products for branded prescription drugs. Adoption of government controls and
measures and tightening of restrictive policies in jurisdictions with existing controls and measures, could exclude or limit our product
candidates  from  coverage  and  limit  payments  for  pharmaceuticals.  We  continue  to  monitor  the  potential  impact  of  these  and  other
proposals to lower prescription drug costs at the federal and state level.

At  the  state  level,  legislatures  have  increasingly  passed  legislation  and  implemented  regulations  designed  to  control
pharmaceutical  and  biological  product  pricing,  including  price  or  patient  reimbursement  constraints,  discounts,  restrictions  on  certain
product access and marketing cost disclosure and transparency measures, and, in some cases, designed to encourage importation from
other countries and bulk purchasing.

We  are  unable  to  predict  the  future  course  of  federal  or  state  healthcare  legislation  in  the  U.S.  directed  at  broadening  the
availability of healthcare and containing or lowering the cost of healthcare. The ACA and any further changes in the law or regulatory
framework  that  reduce  our  revenue  or  increase  our  costs  could  also  have  a  material  and  adverse  effect  on  our  business,  financial
condition and results of operations.

Governments outside the U.S. tend to impose strict price controls, which may adversely affect our revenues, if any.

In international markets, reimbursement and health care payment systems vary significantly by country, and many countries have
instituted  price  ceilings  on  specific  products  and  therapies.  In  some  countries,  particularly  the  countries  of  the  EU  and  the  United
Kingdom,  the  pricing  of  prescription  pharmaceuticals  is  subject  to  governmental  control.  In  these  countries,  pricing  negotiations  with
governmental  authorities  can  take  considerable  time  after  the  receipt  of  marketing  approval  for  a  product.  To  obtain  coverage  and
reimbursement or pricing approval in some countries, we may be required to conduct a clinical trial that compares the cost-effectiveness
of our product candidate to other available therapies. There can be no assurance that our products will be considered cost-effective by
third-party payors, that an adequate level of reimbursement will be available, or that the third-party payors’ reimbursement policies will
not  adversely  affect  our  ability  to  sell  our  products  profitably.  If  reimbursement  of  our  products  is  unavailable  or  limited  in  scope  or
amount, or if pricing is set at unsatisfactory levels, our business could be harmed, possibly materially.

Our  employees,  independent  contractors,  consultants,  commercial  partners  and  vendors  may  engage  in  misconduct  or  other

improper activities, including noncompliance with regulatory standards and requirements.

We  are  exposed  to  the  risk  of  employee  fraud  or  other  illegal  activity  by  our  employees,  independent  contractors,  consultants,
commercial partners and vendors. Misconduct by these parties could include intentional, reckless and/or negligent conduct that fails to:
comply  with  the  laws  of  the  FDA  and  other  similar  foreign  regulatory  bodies,  provide  true,  complete  and  accurate  information  to  the
FDA  and  other  similar  foreign  regulatory  bodies,  comply  with  manufacturing  standards  we  have  established,  comply  with  healthcare
fraud and abuse laws in the U.S. and similar foreign fraudulent misconduct laws, or report financial information or data accurately or to
disclose  unauthorized  activities  to  us.  If  we  obtain  FDA  approval  of  any  of  our  product  candidates  and  begin  commercializing  those
products in the U.S., our potential exposure under such laws will increase significantly, and our costs associated with compliance with
such laws are also likely to increase. These laws may impact, among other things, our current activities with principal investigators and
research  patients,  as  well  as  proposed  and  future  sales,  marketing  and  education  programs.  In  particular,  the  promotion,  sales  and
marketing of healthcare items and services, as well as certain business arrangements in the healthcare industry, are subject to extensive
laws designed to prevent fraud, kickbacks, self-dealing and other abusive practices. These laws and regulations may restrict or prohibit a
wide range of pricing, discounting, marketing and promotion, structuring and commission(s), certain customer incentive programs and
other  business  arrangements  generally.  Activities  subject  to  these  laws  also  involve  the  improper  use  of  information  obtained  in  the
course of patient recruitment for clinical trials.

We have adopted a Code of Conduct and Ethics, but it is not always possible to identify and deter employee misconduct, and the
precautions  we  take  to  detect  and  prevent  inappropriate  conduct  may  not  be  effective  in  controlling  unknown  or  unmanaged  risks  or
losses or in protecting us from governmental investigations or other actions or lawsuits stemming from a failure to comply with such
laws or regulations. Efforts to ensure that our business arrangements will comply with applicable healthcare laws may involve substantial
costs. It is possible that governmental and enforcement authorities will conclude that our, or our employees’, consultants’, collaborators’,
contractors’,  or  vendors’  business  practices  may  not  comply  with  current  or  future  statutes,  regulations  or  case  law  interpreting
applicable  fraud  and  abuse  or  other  healthcare  laws  and  regulations.  If  any  such  actions  are  instituted  against  us,  and  we  are  not
successful  in  defending  ourselves  or  asserting  our  rights,  those  actions  could  have  a  significant  impact  on  our  business,  including  the
imposition of civil, criminal and administrative penalties, damages, disgorgement, monetary fines, possible exclusion from participation
in  Medicare,  Medicaid  and  other  federal  healthcare  programs,  contractual  damages,  reputational  harm,  diminished  profits  and  future
earnings, compliance agreements, withdrawal of product approvals, and curtailment of our operations, among other things, any of which
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adversely affect our ability to operate our business and our results of operations. In addition, the approval and commercialization of any
of  our  product  candidates  outside  the  U.S.  will  also  likely  subject  us  to  foreign  equivalents  of  the  healthcare  laws  mentioned  above,
among other foreign laws.

Risks Related to Our Intellectual Property

We  may  be  involved  in  lawsuits  to  protect  or  enforce  our  patents  or  the  patents  of  our  licensors,  or  lawsuits  accusing  our

products of patent infringement, which could be expensive, time-consuming and unsuccessful.

Competitors may infringe the patents of our licensors. To counter infringement or unauthorized use, we may be required to file
infringement claims, which can be expensive and time-consuming. In addition, in an infringement proceeding, a court may decide that
one or more of our patents is not valid or is unenforceable or may refuse to stop the other party from using the technology at issue on the
grounds that our patents do not cover the technology in question. An adverse result in any litigation or defense proceedings could put one
or more of our patents at risk of being invalidated, held unenforceable, or interpreted narrowly and could put our patent applications at
risk  of  not  issuing.  Defense  of  these  claims,  regardless  of  their  merit,  would  involve  substantial  litigation  expense  and  would  be  a
substantial diversion of employee resources from our business. In the event of a successful claim of infringement against us, we may be
enjoined from manufacturing, use, and marketing our products, or may have to pay substantial damages, including treble damages and
attorneys’ fees for willful infringement, obtain one or more licenses from third parties, pay royalties or redesign our infringing products,
which may be impossible or require substantial time and monetary expenditure.

Periodic  maintenance  fees  on  any  issued  patent  are  due  to  be  paid  to  the  U.S.  Patent  and  Trademark  Office,  or  USPTO,  and
foreign patent agencies in several stages over the lifetime of the patent. The USPTO and various foreign governmental patent agencies
require compliance with several procedural, documentary, fee payment and other similar provisions during the patent application process.
While an inadvertent lapse can in many cases be cured by payment of a late fee or by other means in accordance with the applicable
rules,  there  are  situations  in  which  noncompliance  can  result  in  abandonment  or  lapse  of  the  patent  or  patent  application,  resulting  in
partial or complete loss of patent rights in the relevant jurisdiction. Noncompliance events that could result in abandonment or lapse of a
patent  or  patent  application  include,  but  are  not  limited  to,  failure  to  respond  to  official  actions  within  prescribed  time  limits,  non-
payment of fees and failure to properly legalize and submit formal documents. In such an event, our competitors might be able to enter
the market, which would have a material adverse effect on our business.

We may incur substantial costs as a result of litigation or other proceedings relating to patent and other intellectual property

rights.

The cost to us of any litigation or other proceeding relating to intellectual property rights, even if resolved in our favor, could be
substantial. Some of our competitors may be better able to sustain the costs of complex patent litigation because they have substantially
greater resources. If there is litigation against us, we may not be able to continue our operations.

Should  third  parties  file  patent  applications  or  be  issued  patents  claiming  technology  also  used  or  claimed  by  us,  we  may  be
required to participate in interference proceedings in the USPTO to determine priority of invention. We may be required to participate in
interference proceedings involving our issued patents and pending applications. We may be required to cease using the technology or to
license rights from prevailing third parties as a result of an unfavorable outcome in an interference proceeding. A prevailing party in that
case may not offer us a license on commercially acceptable terms.

Issued patents covering our product candidates could be found invalid or unenforceable if challenged in court or the USPTO.

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,  as  applicable,  is  invalid  and/or
unenforceable. In patent litigation in the U.S., defendant counterclaims alleging invalidity and/or unenforceability are commonplace, and
there are numerous grounds upon which a third party can assert invalidity or unenforceability of a patent. Third parties may also raise
similar claims before administrative bodies in the U.S. or abroad, even outside the context of litigation. Such mechanisms include re-
examination,  post  grant  review,  and  equivalent  proceedings  in  foreign  jurisdictions  (e.g.,  opposition  proceedings).  For  example,  on
November 24, 2021, an opposition proceeding was initiated in the European Patent Office against our European Patent No. 3601533 B1.
This opposition proceeding, or any similar proceedings that may arise in the U.S. or foreign jurisdictions, could result in revocation 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 we, our patent counsel and the patent examiner were unaware during prosecution. If a defendant or third

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party were to prevail on a legal assertion of invalidity and/or unenforceability, we would lose at least part, and perhaps all, of the patent
protection on our product candidates. Such a loss of patent protection could have a material adverse impact on our business.

If we are unable to protect our proprietary rights, we may not be able to compete effectively or operate profitably.

Our success is dependent in part on maintaining and enforcing the patents and other proprietary rights that we have licensed and
may develop, and on our ability to avoid infringing the proprietary rights of others. Certain of our intellectual property rights are licensed
from  another  entity,  and  as  such  the  preparation  and  prosecution  of  these  patents  and  patent  applications  was  not  performed  by  us  or
under our control. Furthermore, patent law relating to the scope of claims in the biotechnology field in which we operate is still evolving
and, consequently, patent positions in our industry may not be as strong as in other more well-established fields. The patent positions of
biotechnology companies can be highly uncertain and involve complex legal and factual questions for which important legal principles
remain unresolved. No consistent policy regarding the breadth of claims allowed in biotechnology patents has emerged to date.

The issuance of a patent is not conclusive as to its validity or enforceability and it is uncertain how much protection, if any, will be
given to the patents we have licensed from the NIH, Moffitt, or MDACC if any of these parties, or we, attempt to enforce the patents
and/or  if  they  are  challenged  in  court  or  in  other  proceedings,  such  as  oppositions,  which  may  be  brought  in  foreign  jurisdictions  to
challenge the validity of a patent. A third party may challenge the validity or enforceability of a patent after its issuance by the Patent
Office. It is possible that a competitor may successfully challenge our patents or that a challenge will result in limiting their coverage.
Moreover,  the  cost  of  litigation  to  uphold  the  validity  of  patents  and  to  prevent  infringement  can  be  substantial.  If  the  outcome  of
litigation is adverse to us, third parties may be able to use our patented invention without payment to us. Moreover, it is possible that
competitors may infringe our patents or successfully avoid the patented technology through design innovation. To stop these activities,
we may need to file a lawsuit. These lawsuits are expensive and would consume time and other resources, even if we were successful in
stopping the violation of our patent rights. In addition, there is a risk that a court would decide that our patents are not valid and that we
do not have the right to stop the other party from using the inventions. There is also the risk that, even if the validity of our patents were
upheld,  a  court  would  refuse  to  stop  the  other  party  on  the  grounds  that  its  activities  are  not  covered  by,  that  is,  do  not  infringe,  our
patents.

Should third parties file patent applications, or be issued patents claiming technology also used or claimed by our licensor(s) or by
us in any future patent application, we may be required to participate in interference proceedings in the USPTO to determine priority of
invention for those patents or patent applications that are subject to the first-to-invent law in the U.S., or may be required to participate in
derivation proceedings in the USPTO for those patents or patent applications that are subject to the first-inventor-to-file law in the U.S.
We may be required to participate in such interference or derivation proceedings involving our issued patents and pending applications.
We may be required to cease using the technology or to license rights from prevailing third parties as a result of an unfavorable outcome
in  an  interference  proceeding  or  derivation  proceeding.  A  prevailing  party  in  that  case  may  not  offer  us  a  license  on  commercially
acceptable terms.

We  cannot  prevent  other  companies  from  licensing  most  of  the  same  intellectual  properties  that  we  have  licensed  or  from

otherwise duplicating our business model and operations.

Certain intellectual properties that we are using to develop TIL-based cancer therapy products were licensed to us by the NIH. The
issued  or  pending  patents  that  the  NIH  licensed  to  us  are  exclusive,  and  specific  with  respect  to  melanoma,  breast,  HPV-associated,
bladder and lung cancers. No assurance can be given that the NIH has not previously licensed, or that the NIH hereafter will not license
to other biotechnology companies some or all of the non-exclusive technologies available to us under the NIH License Agreement. In
addition, one pending U.S. patent application in the NIH License Agreement is not owned solely by the NIH. No assurance can be given
that NIH’s co-owner of the certain pending U.S. patent application in the NIH License Agreement has not previously licensed, or that the
co-owner thereafter will not license, to other biotechnology companies some or all of the technologies available to us. Co-ownership of
these intellectual properties will create issues with respect to our ability to enforce the intellectual property rights in courts and will create
issues with respect to the accountability of one entity with respect to the other.

Since  the  NCI,  Moffitt,  MDACC,  and  others  already  use  TIL  cell  therapy  for  the  treatment  of  metastatic  melanoma  and  other
indications,  their  methods  and  data  are  also  available  to  third  parties,  who  may  want  to  enter  into  our  line  of  business  and  compete
against us. Other than the Gen 2 manufacturing process, we currently do not own any exclusive rights on our entire product portfolio that
could  be  used  to  prevent  third  parties  from  duplicating  our  business  plan  or  from  otherwise  directly  competing  against  us.  While
additional technologies that may be developed under our CRADA may be licensed to us on an exclusive basis, no assurance can be given
that our existing exclusive rights and will be sufficient to prevent others from competing with us and developing substantially similar
products.

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The use of our technologies could potentially conflict with the rights of others.

Our potential competitors or others may have or acquire patent rights that they could enforce against us. If they do so, then we
may be required to alter our products, pay licensing fees or cease activities. If our products conflict with patent rights of others, third
parties  could  bring  legal  actions  against  us  or  our  collaborators,  licensees,  suppliers  or  customers,  claiming  damages  and  seeking  to
enjoin  manufacturing,  use  and  marketing  of  the  affected  products.  If  these  legal  actions  are  successful,  in  addition  to  any  potential
liability for damages (including treble damages and attorneys’ fees for willful infringement), we could be required to obtain a license to
continue manufacturing, promoting the use or marketing the affected products. We may not prevail in any legal action and a required
license under the patent may not be available on acceptable terms or at all.

We  have  conducted  extensive  freedom-to-operate,  or  FTO,  analyses  of  the  patent  landscape  with  respect  to  our  lead  product
candidates. Although we continue to undertake FTO analyses of our manufacturing processes, our lead TIL products, and contemplated
future processes and products, because patent applications do not publish for 18 months, and because the claims of patent applications
can  change  over  time,  no  FTO  analysis  can  be  considered  exhaustive.  Furthermore,  patent  and  other  intellectual  property  rights  in
biotechnology remains an evolving area with many risks and uncertainties. As such, we may not be able to ensure that we can market our
product candidates without conflict with the rights of others.

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

products.

As  is  the  case  with  other  cell  therapy  and  biopharmaceutical  companies,  our  success  is  dependent  on  intellectual  property,
particularly patents. Obtaining and enforcing patents in the biopharmaceutical industry involves both technological and legal complexity,
and is therefore costly, time-consuming and inherently uncertain. In addition, the U.S. has recently enacted and is currently implementing
wide-ranging  patent  reform  legislation.  Recent  U.S.  Supreme  Court  rulings  have  narrowed  the  scope  of  patent  protection  available  in
certain circumstances and weakened the rights of patent owners in certain situations. In addition to increasing uncertainty with regard to
our ability to obtain patents in the future, this combination of events has created uncertainty with respect to the value of patents, once
obtained. Depending on decisions by the U.S. Congress, the federal courts, and the USPTO, the laws and regulations governing patents
could change in unpredictable ways that would weaken our ability to obtain new patents or to enforce our existing patents and patents
that we might obtain in the future. While we do not believe that any of the patents owned or licensed by us will be found invalid based on
this  decision,  we  cannot  predict  how  future  decisions  by  the  courts,  the  U.S.  Congress  or  the  USPTO  may  impact  the  value  of  our
patents.

We have limited foreign intellectual property rights and may not be able to protect our intellectual property rights throughout

the world.

We have limited intellectual property rights outside the U.S. 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 U.S.
can be less extensive than those in the U.S. 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  U.S.  Consequently,  we  may  not  be  able  to  prevent  third  parties  from  practicing  our
inventions in all countries outside the U.S., or from selling or importing products made using our inventions in and into the U.S. 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 U.S. 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  biopharmaceutical  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.
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.

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We  may  be  subject  to  claims  that  our  employees,  consultants  or  independent  contractors  have  wrongfully  used  or  disclosed

confidential information of third parties.

We have received confidential and proprietary information from third parties and our employees and contractors. In addition, we
employ individuals who were previously employed at other biotechnology or pharmaceutical companies. We may be subject to claims
that  we  or  our  employees,  consultants  or  independent  contractors  have  inadvertently  or  otherwise  used  or  disclosed  confidential
information of these third parties or our employees’ former employers. Litigation may be necessary to defend against or pursue these
claims. For example, we are currently engaged in litigation involving counterclaims that we have brought relating to theft of certain of
our trade secrets, breach of confidentiality, and related counterclaims. Even if we are successful in resolving these claims, litigation could
result in substantial costs and be a distraction to our management and employees.

Risks Related to Our Securities

Our  officers,  directors  and  principal  stockholders  own  a  substantial  percentage  of  our  stock  and  will  be  able  to  exert

significant control over matters subject to stockholder approval.

Our officers, directors, and principal stockholders currently beneficially own a substantial portion of our outstanding voting stock.
Therefore, these stockholders have the ability and may continue to have the ability to influence our corporate decision making. Given
current ownership levels, these stockholders may be able to determine some or all matters requiring stockholder approval. For example,
these  stockholders,  acting  together,  may  be  able  to  control  or  influence  elections  of  directors,  amendments  to  our  certificate  of
incorporation or bylaws, or approval of any merger, sale of assets, or other major corporate transaction. This level of control may prevent
or discourage unsolicited acquisition proposals or offers for our common stock that you may believe are in your best interest as one of
our stockholders.

Our stock price may be volatile, and our stockholders’ investment in our stock could decline in value.

The market price of our common stock is likely to be volatile and could fluctuate widely in response to many factors, including

but not limited to:

● volatility and instability in the capital markets due to the COVID-19 pandemic;
● announcements  of  the  results  of  clinical  trials  by  us,  our  collaborators,  or  our  competitors,  or  negative  developments  with

respect to similar products, including those being developed by our collaborators;

● developments with respect to patents or proprietary rights;
● announcements of technological innovations by us or our competitors;
● announcements of new products or new contracts by us or our competitors;
● actual or anticipated variations in our operating results due to the level of development expenses and other factors;
● changes in financial estimates by equities research analysts and whether our earnings meet or exceed such estimates;
● conditions and trends in the pharmaceutical, biotechnology and other industries;
● receipt, or lack of receipt, of funding in support of conducing our business;
● regulatory developments within, and outside of, the U.S.;
● litigation or arbitration;
● general volatility in the financial markets;
● general economic, political and market conditions and other factors; and
● the occurrence of any of the risks described in this Annual Report on Form 10-K.

You may experience future dilution as a result of future equity offerings or other equity issuances.

We may have to raise additional capital in the future. To raise additional capital, we may in the future offer additional shares of our
common stock or other securities convertible into or exchangeable for our common stock at prices that may be lower than the current
price per share of our common stock. In addition, investors purchasing shares or other securities in the future could have rights superior
to  existing  stockholders.  The  price  per  share  at  which  we  sell  additional  shares  of  our  common  stock,  or  securities  convertible  or
exchangeable  into  common  stock,  in  future  transactions  may  be  higher  or  lower  than  the  price  per  share  paid  by  investors  in  prior
offerings. Any such issuance could result in substantial dilution to our existing stockholders.

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Future sales of our common stock in the public market could cause our stock price to fall.

Our stock price could decline as a result of sales of a large number of shares of our common stock or the perception that these
sales  could  occur.  These  sales,  or  the  possibility  that  these  sales  may  occur,  also  might  make  it  more  difficult  for  us  to  sell  equity
securities in the future at a time and at a price that we deem appropriate.

As of December 31, 2023, we had 256,135,715 shares of common stock outstanding. In addition, we had 25,589,659 shares of
common  stock  equivalents  that  would  increase  the  number  of  common  stock  outstanding  if  these  instruments  were  exercised  or
converted to purchase common stock based on vesting requirements of stock options and common stock issuable through purchases of
employee  stock  purchase  plan,  or  upon  the  conversion  of  preferred  stock.  The  issuance  and  subsequent  sale  of  the  shares  underlying
these common stock equivalents could depress the trading price of our common stock. On June 10, 2019, our certificate of incorporation
was amended to increase the number of authorized shares of our common stock, from 150,000,000 shares to 300,000,000 shares, which
was approved by our stockholders on that date. On June 16, 2023, our certificate of incorporation was amended to increase the number of
authorized shares of our common stock from 300,000,000 to 500,000,000 shares, which amendment was approved by our stockholders
on June 6, 2023.

In  addition,  in  the  future,  we  may  issue  additional  shares  of  common  stock  or  other  equity  or  debt  securities  convertible  into
common stock in connection with a financing, acquisition, litigation settlement, employee arrangements or otherwise. For example, in
July  2023,  we  issued  23,000,000  shares  of  common  stock  in  connection  with  an  underwritten  public  offering,  and  we  may  offer
additional shares under our automatic shelf registration statement in the future. Future issuances may result in substantial dilution to our
existing stockholders and could cause our stock price to decline.

If equities or industry analysts do not publish research or reports about our company, or if they issue adverse or misleading

opinions regarding us or our stock, our stock price and trading volume could decline.

Although we have research coverage by equities analysts, if coverage is not maintained, the market price for our stock may be
adversely affected. Our stock price also may decline if any analyst who covers us issues an adverse or erroneous opinion regarding us,
our business model, our intellectual property or our stock performance, or if our clinical trials and operating results fail to meet analysts’
expectations.  If  one  or  more  analysts  cease  coverage  of  us  or  fail  to  regularly  publish  reports  on  us,  we  could  lose  visibility  in  the
financial markets, which could cause our stock price or trading volume to decline and possibly adversely affect our ability to engage in
future financings.

If we fail to maintain an effective system of internal control over financial reporting, we may not be able to accurately report
our financial results. As a result, we could become subject to sanctions or investigations by regulatory authorities and/or stockholder
litigation, which could harm our business and have an adverse effect on our stock price.

As  a  public  reporting  company,  we  are  subject  to  various  regulatory  requirements,  including  the  Sarbanes-Oxley  Act  of  2002,
which requires our management to assess and report on our internal controls over financial reporting. Nevertheless, in future years, our
testing, or the subsequent testing by our independent registered public accounting firm, may reveal deficiencies in our internal controls
that we would be required to remediate in a timely manner to be able to comply with the requirements of Section 404 of the Sarbanes-
Oxley Act each year. If we are not able to comply with the requirements of Section 404 of the Sarbanes-Oxley Act each year, we could
be subject to sanctions or investigations by the SEC, Nasdaq or other regulatory authorities which would require additional financial and
management resources and could adversely affect the market price of our common stock. In addition, material weaknesses in our internal
controls could result in a loss of investor confidence in our financial reports.

We are, and in the future may be, subject to federal or state securities or related legal actions that could adversely affect our

results of operations and our business.

Federal and state securities and related legal actions may result in substantial costs and divert our management’s attention from
other business concerns, which could seriously harm our business or affect our reputation. We may not be successful in defending future
claims and cannot provide assurance that insurance proceeds will be sufficient to cover any costs or liability under such claims.

For example, on December 11, 2020, a purported stockholder derivative complaint was filed by plaintiff Leo Shumacher against
us, as nominal defendant, and then current directors, as defendants, in the Court of Chancery in the State of Delaware, or the Court. The
complaint  alleges  breach  of  fiduciary  duty  and  a  claim  for  unjust  enrichment  in  connection  with  alleged  excessive  compensation  of
certain of our non-executive directors and seeks unspecified damages on behalf of our company. The parties have agreed to a proposed

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settlement,  which  was  submitted  to  the  Court  on  June  15,  2022.  The  parties  continue  to  work  toward  settlement  after  a  hearing  on
November 17, 2022, where the Court required additional steps to be taken by the parties before it will determine whether final approval
will be given to the settlement. The outcome of this and other future litigation is uncertain.

Our  Board  of  Directors  could  issue  one  or  more  additional  series  of  preferred  stock  without  stockholder  approval  with  the

effect of diluting existing stockholders and impairing their voting and other rights.

Our certificate of incorporation, as amended, authorizes the issuance of up to 50,000,000 shares of “blank check” preferred stock
(of  which  only  17,000  shares  were  issued  as  Series  A  Convertible  Preferred  Stock  and  11,500,000  shares  were  issued  as  Series  B
Convertible  Preferred  Stock)  with  designations,  rights  and  preferences  as  may  be  determined  from  time  to  time  by  our  Board  of
Directors.  Our  Board  of  Directors  is  empowered,  without  stockholder  approval,  to  issue  one  or  more  series  of  preferred  stock  with
dividend, liquidation, conversion, voting or other rights which could dilute the interest of, or impair the voting power of, our common
stockholders. The issuance of a series of preferred stock could be used as a method of discouraging, delaying or preventing a change in
control. For example, it would be possible for our Board of Directors to issue preferred stock with voting or other rights or preferences
that could impede the success of any attempt to effect a change in control of our company.

We do not anticipate paying cash dividends for the foreseeable future, and therefore investors should not buy our stock if they

wish to receive cash dividends.

We have never declared or paid any cash dividends or distributions on our common stock. We currently intend to retain our future
earnings to support operations and to finance expansion and, therefore, we do not anticipate paying any cash dividends on our common
stock in the foreseeable future.

Provisions in our corporate charter documents and under Delaware law may prevent or frustrate attempts by our stockholders
to change our management and hinder efforts to acquire a controlling interest in us, and the market price of our common stock may
be lower as a result.

There are provisions in our certificate of incorporation, as amended, and amended and restated bylaws that may make it difficult
for a third party to acquire, or attempt to acquire, control of our company, even if a change in control was considered favorable by you
and other stockholders. For example, our Board of Directors has the authority to issue up to 38,483,000 additional shares of preferred
stock and to fix the price, rights, preferences, privileges, and restrictions of the preferred stock without any further vote or action by our
stockholders. The issuance of shares of preferred stock may delay or prevent a change in control transaction. As a result, the market price
of our common stock and the voting and other rights of our stockholders may be adversely affected. An issuance of shares of preferred
stock may result in the loss of voting control to other stockholders.

In  addition,  we  are  subject  to  the  anti-takeover  provisions  of  Section  203  of  the  Delaware  General  Corporation  Law,  which
regulates corporate acquisitions by prohibiting Delaware corporations from engaging in specified business combinations with particular
stockholders of those companies. These provisions could discourage potential acquisition proposals and could delay or prevent a change
in control transaction. They could also have the effect of discouraging others from making tender offers for our common stock, including
transactions  that  may  be  in  your  best  interests.  These  provisions  may  also  prevent  changes  in  our  management  or  limit  the  price  that
investors are willing to pay for our stock.

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

Our certificate of incorporation, as amended, provides that, subject to limited exceptions, the Court of Chancery of the State of
Delaware shall, to the fullest extent permitted by law, be the sole and exclusive forum for (1) any derivative action or proceeding brought
on our behalf, (2) any action asserting a claim of breach of a fiduciary duty owed by any of our directors, officers, employees or agents to
us or our stockholders, creditors or other constituents, (3) any action asserting a claim against us arising pursuant to any provision of the
Delaware  General  Corporation  Law,  our  certificate  of  incorporation,  as  amended,  or  our  amended  bylaws,  or  (4)  any  other  action
asserting a claim against us that is governed by the internal affairs doctrine. Any person or entity purchasing or otherwise acquiring any
interest  in  shares  of  our  capital  stock  shall  be  deemed  to  have  notice  of  and  to  have  consented  to  the  provisions  of  our  certificate  of
incorporation described above. This choice of forum provision may limit a stockholder’s ability to bring a claim in a judicial forum that it
finds favorable for disputes with us or our directors, officers, or other employees, which may discourage such lawsuits against us and our
directors, officers, and employees. Further, this choice of forum provision does not preclude or contract the scope of exclusive

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federal or concurrent jurisdiction for any actions brought under the Securities Act or the Exchange Act. Section 27 of the Exchange Act
creates exclusive federal jurisdiction over all suits brought to enforce any duty or liability created by the Exchange Act or the rules and
regulations thereunder. As a result, the exclusive forum provision will not apply to suits brought to enforce any duty or liability created
by the Exchange Act or any other claim for which the federal courts have exclusive jurisdiction.

In addition, Section 22 of the Securities Act creates concurrent jurisdiction for federal and state courts over all suits brought to
enforce  any  duty  or  liability  created  by  the  Securities  Act  or  the  rules  and  regulations  thereunder.  As  a  result,  the  exclusive  forum
provision will not apply to suits brought to enforce any duty or liability created by the Securities Act or any other claim for which the
federal  and  state  courts  have  concurrent  jurisdiction.  Accordingly,  our  exclusive  forum  provision  will  not  relieve  us  of  our  duties  to
comply with the federal securities laws and the rules and regulations thereunder, and our stockholders will not be deemed to have waived
our compliance with these laws, rules and regulations.

If a court were to find these provisions of our certificate of incorporation, as amended inapplicable to, or unenforceable in respect
of, one or more of the specified types of actions or proceedings, we may incur additional costs associated with resolving such matters in
other jurisdictions, which could adversely affect our business, results of operations and financial condition. Even if we are successful in
defending against these claims, litigation could result in substantial costs and be a distraction to management and other employees.

Provisions in our amended and restated bylaws could limit our stockholders’ ability to obtain a favorable judicial forum for

disputes with us or our directors, officers or employees.

Our amended and restated bylaws provide that, unless we consent in writing to the selection of an alternative forum, the federal
district courts of the U.S. shall be the exclusive forum for the resolution of any complaint asserting a cause of action under the Securities
Act. This provision limits the ability of our shareholders to bring claims under the Securities Act in any court other than the U.S. federal
courts, which ultimately may disadvantage our shareholders or be cost prohibitive. Notwithstanding the foregoing, there is uncertainty as
to whether a court (other than state courts in the State of Delaware, which have recently upheld the validity of such a provision) would
enforce  such  a  provision  and  whether  investors  can  waive  compliance  with  the  federal  securities  laws  and  the  rules  and  regulations
thereunder. Furthermore, the exclusive forum provision only applies to claims brought under the Securities Act and does not apply to
actions arising under the Exchange Act, which is already subject to federal courts as the exclusive forum.

If a court were to find these provisions of our amended and restated bylaws inapplicable to, or unenforceable in respect of, one or
more  of  the  specified  types  of  actions  or  proceedings,  we  may  incur  additional  costs  associated  with  resolving  such  matters  in  other
jurisdictions,  which  could  adversely  affect  our  business,  results  of  operations  and  financial  condition.  Even  if  we  are  successful  in
defending against these claims, litigation could result in substantial costs and be a distraction to management and other employees.

Item 1B.        Unresolved Staff Comments

None.

Item 1C.        Cybersecurity

We  operate  in  the  biopharmaceutical  sector,  which  is  subject  to  various  cybersecurity  risks  that  could  adversely  affect  our
business,  financial  condition,  and  the  results  of  operations,  including  intellectual  property  theft,  fraud,  extortion,  harm  to  employees,
third party vendors or customers, violation of privacy laws and other litigation and legal risk, and reputational risk.

Risk Management and Strategy

We  have  processes  in  place  for  assessing,  identifying,  and  managing  material  risks  from  cybersecurity  threats,  which  are
integrated  into  our  overall  risk  management  processes.    These  processes  include  identifying  and  assessing  risks  from  cybersecurity
threats associated with the use of third-party service providers, if any. The response to any cybersecurity incident detected or reported is
led by our Computer Security Incident Response Team, or the CSIRT, to assess the nature and magnitude of event and classify severity in
accordance  with  our  internal  policies  and  procedures.  Depending  on  the  severity  of  the  incident,  appropriate  level  of  management
members, including our Chief Executive Officer, Chief Financial Officer, external legal counsel, and certain members of the finance and
investor  relations  organizations,  will  be  notified  and  take  appropriate  actions.  In  addition,  the  Information  Technology,  or  IT,  team
provides  periodic  reports  to  the  Chief  Executive  Officer  and  other  members  of  our  senior  management,  as  appropriate,  and  provides
periodic reports to the Audit Committee of the Board of Directors as needed. These reports include updates on our cyber risks and threats
as well as the status of previously identified and/or reported cybersecurity incidents, if any. We also actively engage with key vendors,

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industry  participants  and  intelligence  and  law  enforcement  communities  as  part  of  continuing  efforts  to  evaluate  and  enhance  the
effectiveness of our information security policies and procedures.

We use various tools and methodologies to assess, identify, and manage material risks from cybersecurity threats that are tested on
a  regular  cadence.  We  also  monitor  and  evaluate  our  cybersecurity  posture  and  performance  on  an  ongoing  basis  through  regular
vulnerability scans, penetration tests and use of threat intelligence feeds. The results of these activities and any key actions are reported at
least once per quarter and more frequently as needed to the Audit Committee of the Board of Directors, our Chief Executive Officer, and
key members of senior management. Our employees are also required to certify their understanding and completion of training for our
cybersecurity policies.

As  of  the  date  of  this  report,  we  are  not  aware  of  any  material  risks  from  cybersecurity  threats,  including  as  a  result  of  any
previous  cybersecurity  incidents,  that  have  materially  affected  our  business  strategy,  results  of  operations,  or  financial  condition.
 However, as discussed under “Risk Factors” in Part I, Item 1A of this Annual Report, cybersecurity threats pose multiple risks to us,
including potentially to our results of operations and financial condition.  Refer to Item 1A – “Our internal computer systems, or those
used  by  our  contract  research  organizations  or  other  contractors  or  consultants,  may  fail  or  suffer  security  breaches”  and  “We  are
dependent  on  information  technology,  systems,  infrastructure  and  data,”  which  are  incorporated  by  reference  into  this  Item  1C.  As
cybersecurity  threats  become  more  sophisticated  and  coordinated,  it  is  reasonably  likely  that  we  will  be  required  to  expend  greater
resources to continue to modify and enhance our protective measures as we pursue our business strategies. 

Governance:

● Board of Directors

The  Audit  Committee  operates  under  a  written  charter  adopted  by  the  Company’s  Board  of  Directors.  The  Audit  Committee
oversees, among other things, a system of internal controls, including internal controls designed to assess, identify, and manage material
risks from cybersecurity threats. The Audit Committee is also responsible for the adequacy and effectiveness of the Company’s internal
controls, including those internal controls that are designed to assess, identify, and manage material risks from cybersecurity threats. For
further information about the Audit Committee’s role in assessing and managing the registrant’s material risks from cybersecurity threats,
see “Risk Management and Strategy,” under this Item 1C.

● Management

Our team of cybersecurity professionals is led by our Vice President, Infrastructure and Security, who along with other members
of  the  IT  team  collectively  over  extensive  experience  in  the  cybersecurity  space  in  both  the  pharmaceutical  and  non-pharmaceutical
sectors,  many  of  whom  have  obtained  professional  security  certifications.  The  IT  team  has  primary  responsibility  for  our  overall
cybersecurity risk management program and supervises both our internal cybersecurity personnel and our retained external cybersecurity
consultants.  For  further  information  about  Management’s  role  in  assessing  and  managing  the  registrant’s  material  risks  from
cybersecurity threats, see “Risk Management and Strategy,” under this Item 1C.

Item 2.          Properties

San Carlos Headquarters Lease

On  February  8,  2021,  we  entered  into  a  lease  agreement,  or  the  New  Headquarters  Lease,  for  laboratories  and  offices  to  be
constructed in Suite 400 of an existing building located at 825 Industrial Road, San Carlos, California, or the Building. Under the New
Headquarters Lease, we lease approximately 49,918 rentable square feet of space in the Building that currently serves as the premises for
our  headquarters.  The  New  Headquarters  Lease,  which  commenced  in  January  2022,  has  an  initial  term  of  120  months.  The  New
Headquarters Lease includes an option to extend the term of the lease for 60 months, exercisable under certain conditions and at a market
rate as described in the New Headquarters Lease.

Commencing 210 days after the Rent Commencement Date as the result of a rent abatement, our monthly base rent under the New
Headquarters  Lease  is  approximately  $0.3  million,  subject  to  an  annual  increase  of  3%.  We  are  also  responsible  for  paying  operating
expenses such as common area maintenance.

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Minimum rental payments under the New Headquarters Lease total $36.7 million for the entire term of the lease, which does not
include rental payments related to our one-time option to extend for an additional five years. In addition, the lessor has provided a tenant
improvement  allowance  of  up  to  $8.2  million,  of  which,  to  date,  we  have  received  reimbursements  associated  with  this  tenant
improvement  allowance  totaling  $8.1  million.  We  do  not  expect  to  receive  any  additional  reimbursements  associated  with  this  tenant
improvement allowance.

Commercial Manufacturing Facility Agreement

On  May  28,  2019,  we  entered  into  a  lease  agreement,  or  the  Commercial  Manufacturing  Facility  Lease,  for  a  build-to-suit
commercial manufacturing facility, laboratories, and offices located in Philadelphia, Pennsylvania. Under the Commercial Manufacturing
Facility Lease, we lease approximately 136,000 rentable square feet of space in a building located at 300 Rouse Boulevard, Philadelphia,
Pennsylvania known as the Iovance Cell Therapy Center, or the iCTC. The construction of the iCTC began in July 2019 and in the third
quarter  of  2021  we  completed  the  commissioning  activities  as  well  as  certain  tenant  improvements.  The  Commercial  Manufacturing
Facility Lease includes an option to extend the term of the lease by giving the landlord prior written notice thereof at least 18 months in
advance of expiration date, exercisable under certain conditions as described in the Commercial Manufacturing Facility Lease, such that
the overall term, when added to the initial term, shall be 359 months.

Our monthly base rent under the Commercial Manufacturing Facility Lease is approximately $0.3 million, subject to an annual
increase of 2% for the first ten years. Commencing on the first day of each lease year thereafter, for the remainder of the lease term,
monthly rent is subject to an annual increase of the greater of 2% or 75% of the average ten-year consumer price index. We are also
responsible for paying operating expenses, such as common area maintenance.

Tampa Lease

Our  research  and  development  facilities  consist  of  8,673  square  feet  in  a  facility  located  at  the  University  of  South  Florida
Research  Park  in  Tampa,  Florida.  These  facilities  are  leased  under  an  agreement  with  a  lease  term  through  December  2024  for
approximately $20,500 a month. In June 2020, we amended the lease agreement to further increase the rentable space to 13,139 square
feet and extend the lease term to June 5, 2025, for approximately $34,500 a month. On December 22, 2021, we entered into a second
amendment  to  lease  an  additional  2,731  square  feet  of  space  through  June  5,  2025,  co-terminus  with  the  existing  leased  space.  Upon
completion of tenant improvements of the premise, lease payments will be approximately $45,000 per month.

Philadelphia Office Lease

On  May  2,  2019,  we  entered  into  an  agreement  to  lease  approximately  1,500  square  feet  of  office  space  in  Philadelphia,
Pennsylvania until July 1, 2019, for a rate of $2,000 a month, and then approximately 4,500 square feet of office space for the remainder
of a three-year term at an initial rate of $11,063 per month, subject to annual increases of 2.5%. On September 1, 2021, we entered into
an agreement to extend the lease term for an additional three years to July 31, 2025, for approximately $11,900 a month, effective as of
June 1, 2022, subject to annual increases of 2.5%.

On August 1, 2020, we entered into an agreement to lease approximately 2,965 square feet of a training facility space in Plymouth

Meeting, Pennsylvania for a twelve-month term at a rate of approximately $6,500 per month.

Netherlands Office Lease

On July 28, 2023, we entered into an agreement to lease a satellite office space in Amsterdam, Netherlands for a twelve-month
term at a rate of approximately 5,400 € per month. Such agreement automatically renews for successive periods unless cancelled with no
less than three months’ notice prior to the end of the current term.

We believe that our existing facilities are adequate to meet our current needs, and that suitable additional alternative spaces will be

available in the future on commercially reasonable terms.

Item 3.          Legal Proceedings

The information in Note 15 to the consolidated financial statements contained in Part III, Item 15 of this Annual Report on Form

10-K is incorporated herein by reference. There are no matters which constitute material pending legal proceedings to which we are a

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party other than those incorporated into this item by reference from Note 11 to our consolidated financial statements for the year ended
December 31, 2023, contained in this Annual Report on Form 10-K.

Item 4.          Mine Safety Disclosures

Not applicable.

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

PART II

Market Information

Our common stock is traded on The Nasdaq Global Market under the symbol “IOVA.”

Stockholders

As of December 31, 2023, there were approximately 17 holders of record of our common stock.

Dividends

We have never declared or paid any cash dividends on our common stock or any other securities. We anticipate that we will retain
all available funds and any future earnings, if any, for use in the operation of our business and do not anticipate paying cash dividends in
the  foreseeable  future.  Payment  of  future  cash  dividends,  if  any,  will  be  at  the  discretion  of  the  Board  of  Directors  after  considering
various factors, including our financial condition, operating results, current and anticipated cash needs.

Under the terms of our Series A Convertible Preferred Stock, we may not declare, pay or set aside any dividends on shares of any
class or series of capital stock (other than dividends on shares of common stock payable in shares of common stock) unless the holders of
our  Series  A  Convertible  Preferred  Stock  first  receive,  or  simultaneously  receive,  an  equal  dividend  on  each  outstanding  share  of
Series A Convertible Preferred Stock.

Under the terms of our Series B Convertible Preferred Stock, holders shall be entitled to receive dividends on shares equal (on an
as-if-converted-to-Common-Stock  basis)  to  and  in  the  same  form  as  dividends  (other  than  dividends  in  the  form  of  common  stock)
actually  paid  on  shares  of  our  Series  A  Convertible  Preferred  Stock,  common  stock  or  other  junior  securities  when,  as  and  if  such
dividends (other than dividends in the form of common stock) are paid on shares of our Series A Convertible Preferred Stock, common
stock or other junior securities. No other dividends shall be paid on shares of Series B Convertible Preferred Stock, and we may not pay
dividends (other than dividends in the form of common stock) on shares of our Series A Convertible Preferred Stock, common stock or
other junior securities unless it simultaneously complies with the previous sentence.

Unregistered Sales of Equity Securities

None.

Repurchases of Common Stock

There were no share repurchases during the year ended December 31, 2023.

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Stock Performance Graph

The following graph illustrates a comparison of the total cumulative stockholder return on our common stock since December 31,
2018, to two indices: the Russell 3000 and the NASDAQ Biotechnology Index. The stockholder return shown in the graph below is not
necessarily indicative of future performance, and we do not make or endorse any predictions as to future stockholder returns.

Equity Compensation Plan Information

Information regarding our equity compensation plans is incorporated by reference from the information in our Proxy Statement for
our 2024 Annual Meeting of Stockholders, which we will file with the SEC within 120 days after the end of the fiscal year to which this
Annual Report on Form 10-K relates.

Item 6.          [Reserved]

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

The following discussion and analysis of our results of operations and financial condition should be read in conjunction with our
financial  statements  and  the  notes  to  those  financial  statements  that  are  included  elsewhere  in  this  report.  Our  discussion  includes
forward-looking  statements  based  upon  current  expectations  that  involve  risks  and  uncertainties,  such  as  our  plans,  objectives,
expectations  and  intentions.  Actual  results  and  the  timing  of  events  could  differ  materially  from  those  anticipated  in  these  forward-
looking statements as a result of a number of factors, including those set forth under the “Business” section and elsewhere in this report.
We  use  words  such  as  “may,”  “will,”  “might,”  “could,”  “would,”  “should,”  “expect,”  “intend,”  “plan,”  “anticipate,”  “believe,”
“estimate,”  “predict,”  “project,”  “aim,”  “potential,”  “continue,”  “ongoing,”  “goal,”  “forecast,”  “guidance,”  “outlook,”  or  the
negative of these terms or other similar expressions to identify forward-looking statements, although not all forward-looking statements
contain these words. All forward-looking statements included in this report are based on information available to us on the date hereof
and, except as required by law, we assume no obligation to update any such forward-looking statements.

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Overview

We are a commercial-stage biopharmaceutical company pioneering a transformational approach to treating cancer by harnessing
the  human  immune  system’s  ability  to  recognize  and  destroy  diverse  cancer  cells  using  therapies  personalized  for  each  patient.  Our
mission  is  to  be  the  global  leader  in  innovating,  developing  and  delivering  tumor  infiltrating  lymphocyte,  or  TIL,  cell  therapies  for
patients  with  solid  tumor  cancers.  With  the  recent  approval  of  our  biologics  license  application,  or  BLA,  we  are  executing  the  U.S.
launch  of  Amtagvi™  (lifileucel),  the  first  product  within  our  autologous  TIL  cell  therapy  platform,  while  also  marketing  Proleukin®
(aldesleukin), an interleukin-2, or IL-2, product used in the Amtagvi™ treatment regimen. Amtagvi™ is a tumor-derived autologous T
cell immunotherapy indicated for the treatment of adult patients with unresectable or metastatic melanoma previously treated with a PD-
1  blocking  antibody,  and  if  BRAF  V600  mutation  positive,  a  BRAF  inhibitor  with  or  without  a  MEK  inhibitor.  This  indication  is
approved under accelerated approval based on an endpoint of overall response rate, or ORR. Continued approval for this indication may
be contingent upon verification and description of clinical benefit in future confirmatory trials. Amtagvi™ is the first and the only one-
time, individualized T cell therapy to receive U.S. Food and Drug Administration, or FDA, approval for a solid tumor cancer. Amtagvi™
and Proleukin® are part of a treatment regimen that also includes lymphodepletion.

Iovance  was  founded  to  build  upon  the  promise  of  TIL  cell  therapy  that  was  previously  demonstrated  in  single-center  clinical
trials at academic centers, including the National Cancer Institute, or the NCI. Our multi-center trials, novel TIL products, manufacturing
processes,  facilities,  and  bioanalytical  platforms  have  transformed  TIL  cell  therapy  into  a  commercially  viable  treatment  which  many
more patients with cancer can access.

We  manufacture  Amtagvi™  and  our  investigational  TIL  cell  therapies  using  a  centralized,  scalable  and  proprietary  22-day
manufacturing  process  which  rejuvenates  and  multiplies  polyclonal  T  cells  unique  to  each  patient  into  the  billions  and  yields  a
cryopreserved, individualized therapy.

Our development pipeline includes multicenter trials of TIL cell therapies in additional treatment settings for solid tumor cancers.
We are investigating TIL monotherapies for patients with later stage disease who were previously treated with standard of care therapies
and TIL combinations with standard of care therapies to potentially improve outcomes in patients who are earlier in their disease. These
trials include two ongoing registrational trials to support a supplementary BLA, or sBLA, of our TIL cell therapies in frontline advanced
melanoma and in advanced non-small cell lung cancer following standard of care chemo-immunotherapy. We are also developing next
generation therapies using TIL, such as genetically modified TIL cell therapy.

Corporate Strategy

Be the global leader in innovating, developing and delivering TIL cell therapy

Our  mission  is  to  be  the  global  leader  in  innovating,  developing  and  delivering  TIL  cell  therapy  for  patients  with  solid  tumor
cancers. We are pioneering this transformational approach to cure cancer by harnessing the human immune system’s ability to recognize
and destroy diverse cancer cells in each patient. Through the U.S. launch of Amtagvi™ and the advancement of our pipeline, we are
committed to continuous innovation in developing TIL cell therapy and optimizing TIL treatment regimens that may extend and improve
life for patients with cancer.

Successfully commercialize our lead product Amtagvi™ for the treatment of post-anti-PD-1 advanced melanoma

Our  top  priority  is  commercialization  of  Amtagvi™  in  the  U.S.  for  the  treatment  of  patients  with  post-anti-PD-1  advanced
melanoma, for which we received FDA approval on February 16, 2024. We have experienced marketing, payer access and distribution
teams  as  well  as  a  sales  force  with  extensive  experience  in  oncology  and  cell  therapy.  Our  medical  affairs  team  is  also  in  the  field
educating key opinion leaders, or KOLs, about Amtagvi™ and TIL cell therapy, as well as presenting and publishing our clinical results.
More than half of the members of our field teams have prior cell therapy experience.

The four primary areas of our Amtagvi™ launch efforts include:

● onboarding of authorized treatment centers, or ATCs, for commercial launch with the goal of activating 50 ATCs within 90

days of the BLA Prescription Drug User Fee Act date of February 24, 2024;

● collaboration with healthcare professionals, or HCPs, who will be administering our product;
● operational excellence in launch execution, commercial manufacturing and delivery of therapy; and
● ongoing and continuous communication with payors about the value of Amtagvi™.

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Prepare for commercial manufacturing to meet forecasted demand

We are the first company to obtain FDA approval for a TIL cell therapy product. We believe that we are the only company in the
U.S.  to  have  a  centralized,  scalable,  and  commercially  viable  TIL  manufacturing  process.  To  date,  more  than  700  patients  have  been
treated with Iovance TIL cell therapy products manufactured using our proprietary processes across multiple indications. Iovance TIL
cell therapies are manufactured for commercial use and clinical trials at our manufacturing facility, the Iovance Cell Therapy Center, or
the iCTC, and by a contract manufacturing organization, or CMO.

We  are  building  capacity  to  treat  several  thousands  of  cancer  patients  annually  at  the  iCTC,  which  is  the  first  centralized  and
scalable  current  Good  Manufacturing  Practice,  or  cGMP,  manufacturing  facility  dedicated  to  producing  TIL.  Located  in  Philadelphia,
Pennsylvania,  the  136,000  square  feet  iCTC  is  also  among  the  largest  cell  therapy  manufacturing  facilities  in  existence.  Additional
expansion  at  the  iCTC  is  under  way  which  will  significantly  increase  this  capacity.  The  proximity  of  the  iCTC  to  multiple  airports
facilitates delivery of TIL cell therapies to treatment centers, with the iCTC expected to cover logistics and delivery of TIL cell therapies
in both North America and Europe. Owning our own facility allows us to control manufacturing capacity and product quality, manage
logistics around supply and delivery, implement process improvement and realize potential cost efficiencies for TIL cell therapies that we
may develop and commercialize. We are also exploring future TIL manufacturing processes, as well as next-generation treatments and
technologies,  which  may  further  streamline  development  timelines  and  costs.  The  iCTC  has  a  flexible  design  that  allows  future
expansion within existing shell space and an option to build on an adjacent lot to support future growth and capacity needs.  

In  2018,  we  began  using  our  Gen  2  TIL  manufacturing  process,  which  reduced  TIL  manufacturing  time  to  22  days  while
producing a cryopreserved TIL product. The Gen 2 process was used to manufacture Amtagvi™ for the clinical trial that supported FDA
approval, and most of our ongoing clinical trials use the Gen 2 process.

Amtagvi™ is approved for commercial manufacturing at the iCTC. In addition, our CMO is approved for additional capacity to
supplement our internal manufacturing. We plan to carefully manage our cost structure and reduce the long-term cost of manufacturing
our products. Details of related agreements are provided in the Research, Development, Manufacturing and License Agreements for TIL
Cell Therapy section of this Annual Report on Form 10-K.

U.S. Commercial Launch of the First TIL Cell Therapy in Advanced Melanoma

Amtagvi™  

Amtagvi™ (lifileucel) was approved by the FDA on February 16, 2024, for the treatment of adult patients with unresectable or
metastatic melanoma previously treated with a PD-1 blocking antibody, and if BRAF V600 mutation positive, a BRAF inhibitor with or
without MEK inhibitor. The approval is based on safety and efficacy results from the C-144-01 clinical trial, a global, multicenter trial
investigating  Amtagvi™  in  patients  with  advanced  melanoma  previously  treated  with  anti-PD-1  therapy  and  targeted  therapy,  where
applicable. We completed the BLA submission in March 2023, which the FDA accepted in May 2023 for Priority Review. Based on the
unmet need in post-anti-PD-1 advanced melanoma, as well as initial clinical data, lifileucel previously received a Regenerative Medicine
Advanced Therapy, or RMAT, designation from the FDA in 2018.

Amtagvi™ is manufactured using a proprietary process to collect and multiply a patient’s unique T cells from a portion of their
tumor. Amtagvi™ returns billions of the patient’s T cells back to the body to fight cancer. ATCs will administer Amtagvi™ to patients as
part of a treatment regimen that includes lymphodepletion and a short course of high-dose Proleukin®  (aldesleukin).

There are three key steps in the Amtagvi™ treatment process.

● Step 1: Sample Collection. At an ATC, a tumor tissue sample of at least 1.5 cm in diameter is removed and collected during

a surgical resection and shipped to an approved, centralized manufacturing facility.

● Step 2: Manufacturing. Patient-specific  TIL  are  manufactured  using  our  commercial  Gen  2  manufacturing  process.  Upon
arrival at the facility, TIL are separated from other cells within the patient’s tumor tissue sample. Over the next 22 days, the
cells  are  multiplied  into  the  billions,  so  they  can  be  returned  to  the  patient  to  fight  cancer  cells.  Upon  completion  of
manufacturing, Amtagvi™ is quality tested to meet specific product release criteria. The final product is cryopreserved and
sent back to the ATC for administration to the patient. Additional details on the Gen 2 manufacturing process are provided in
the Manufacturing Process section of our Annual Report on Form 10-K.

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● Step 3: Treatment Regimen. The patient’s cell therapy treatment begins with a preparative regimen of non-myeloablative
lymphodepletion, or NMA-LD, to suppress the immunosuppressive tumor microenvironment, which we believe will enhance
the efficacy of TIL cell therapy. After NMA-LD, the patient is treated at the ATC with Amtagvi™, followed by a short course
of up to six doses of Proleukin® to promote T cell activity in the body after TIL infusion.

Until now, there were no FDA approved therapies in this treatment setting for advanced melanoma after anti-PD-1 therapy.

Proleukin®

In  May  2023,  we  acquired  the  worldwide  rights  to  Proleukin®  (aldesleukin)  as  well  as  the  manufacturing,  supply,  and
commercialization income generated from such rights and associated operations from Clinigen Holdings Limited, Clinigen Healthcare
Limited, and Clinigen, Inc, which we refer to collectively as Clinigen. Ownership of Proleukin® provides an additional revenue source,
allows Iovance to secure its supply chain and logistics surrounding TIL cell therapy administration and lowers cost of goods and clinical
trial expenses for Proleukin® used with TIL cell therapies.

Proleukin® is an IL-2 product used in the Amtagvi™ treatment regimen. Proleukin® has also received regulatory approvals for
treatment  of  adults  with  metastatic  melanoma  and  metastatic  renal  cell  carcinoma  in  the  United  States.  Proleukin®  is  also  licensed  in
multiple countries around the world for treatment of patients with metastatic renal cell carcinoma and/or metastatic melanoma.

TIL Cell Therapy Clinical Development in Advanced, Metastatic or Unresectable Solid Tumor Cancers

TIL cell therapy is a T cell-based immunotherapy technology platform that leverages patient-specific cells to recognize and attack
diverse cancer cells that are unique to each patient. Unlike other cell therapies that act on a single or small number of shared antigen
targets common to certain tumors, our individualized T cell therapies are polyclonal or designed to target a variety of neoantigens that are
unique to the patient or tumor. We believe this polyclonal cell therapy is potentially applicable to many solid tumor cancers, where the
majority of immune targets are patient-specific. Our TIL cell therapy platform and manufacturing process have been initially validated
through the FDA approval of Amtagvi™. 

We have investigated TIL cell therapy in global, multicenter clinical trials in advanced melanoma, cervical cancer, non-small cell
lung cancer, or NSCLC, and head and neck squamous cell carcinoma, or HNSCC. Through ongoing academic collaborations, as well as
government and other partners, we are investigating the next frontier for TIL cell therapy in other tumor types and treatment settings.

● Frontline Advanced Melanoma: In frontline advanced melanoma patients who are naïve to anti-PD-1 therapy, we are
investigating  lifileucel  in  combination  with  pembrolizumab  in  the  Phase  3  TILVANCE-301  clinical  trial.  TILVANCE-
301 is a randomized Phase 3 clinical trial intended to support registration in advanced frontline melanoma as well as to
serve  as  a  confirmatory  trial  for  full  approval  in  post-anti-PD-1  advanced  melanoma.  TILVANCE-301  is  expected  to
enroll approximately 670 patients and features dual primary endpoints of ORR and progression free survival, or PFS, by
blinded independent review committee.

● Non-Small  Cell  Lung  Cancer:  In  NSCLC,  we  are  investigating  LN-145  TIL  cell  therapy  in  two  clinical  trials  in
NSCLC  patient  populations  with  significant  unmet  need.  IOV-LUN-202  is  a  registrational  clinical  trial  of  LN-145  in
advanced  NSCLC  patients  who  have  progressed  following  chemotherapy  and  anti-PD-1  therapy.  The  IOV-COM-202
trial  in  solid  tumors  also  includes  cohorts  of  NSCLC  patients  treated  with  LN-145  monotherapy  and  combination
therapy.

● Gynecological Cancers: We are planning to initiate a clinical trial for lifileucel TIL cell therapy in endometrial cancer to
potentially address the unmet need for patients previously treated with anti-PD-1 therapy. We also are exploring lifileucel
in advanced cervical cancer in the C-145-04 multicenter Phase 2 clinical trial.

● Next  Generation  TIL  Cell  Therapy:  Our  first  genetically  modified,  PD-1  inactivated  TIL  cell  therapy,  IOV-4001,
entered  a  first-in-human  Phase  1/2  clinical  trial,  IOV-GM1-201,  in  2022  in  patients  with  previously  treated  advanced
melanoma  and  NSCLC.  IOV-4001  utilizes  the  gene-editing  TALEN®  technology,  licensed  from  Cellectis  S.A.,  or
Cellectis, to inactivate the gene coding for the programmed cell death protein-1, or PD-1.

● Additional Solid Tumor Cancers: Iovance TIL cell therapy has been investigated in additional solid tumor cancers in
Iovance-  and  investigator-sponsored  clinical  trials.  LN-145  was  evaluated  as  a  monotherapy  and  in  combination  with
pembrolizumab in the Phase 2 C-145-03 and IOV-COM-202 clinical trials in multiple patient cohorts with metastatic

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HNSCC. Indications studied in investigator sponsored clinical trials supported by Iovance include soft tissue sarcoma,
osteosarcoma,  pancreatic  and  colorectal  cancer,  platinum  resistant  ovarian  cancer,  anaplastic  thyroid  cancer  and  triple
negative breast cancer.

Next-Generation TIL Therapy Product Candidates

Our next-generation technology platforms are designed to optimize outcomes with TIL cell therapy across three key initiatives:

genetic modifications, potency, and new treatment regimens.

● Genetic modifications: We are pursuing several targets for genetic modification that utilize the gene-editing TALEN® platform
licensed  from  the  clinical-stage  biotechnology  company,  Cellectis.  Single-  and  multiple-  knockouts  may  further  harness  the
immune  system  response  to  cancer  and  potentially  increase  the  potency  of  TIL  cell  therapy.  Preclinical  development  is  also
ongoing  with  cytokine-tethered  TIL  products  and  additional  TIL  products  and  TIL-cell  lines  using  transient  and  stable  gene
insertion and inactivation, which may expand and activate TIL to achieve better efficacy while avoiding systemic side effects of
cytokines.

● Potency: We are exploring potential approaches to increase potency of the final TIL product through sorting and selection of
specific TIL, such CD39/69 double-negative TIL, and the use of certain inhibitors or other reagents in TIL expansion cultures.
We have also manufactured and investigated patient cohorts treated with TIL candidate, LN-145-S1, manufactured from TIL
selected for PD-1 expression.  

● New  treatment  regimens:  We  are  exploring  potential  improvements  to  the  TIL  treatment  regimen.  IND-enabling  studies  are
investigating IOV-3001, an antibody cytokine-engrafted protein, or IL-2 analog, which we licensed from Novartis Pharma AG.
in 2020.

Intellectual Property

We  have  established  a  leading  intellectual  property  portfolio  developed  internally  and  licensed  from  third  parties.  We  currently
own  more  than  60  U.S.  patents  related  to  TIL  cell  therapy,  including  patents  directed  to  compositions  and  methods  of  treatment  in  a
broad range of cancers, such as U.S. Patent Nos. 10,130,659; 10,166,257; 10,272,113; 10,363,273; 10,398,734; 10,420,799; 10,463,697;
10,517,894; 10,537,595; 10,639,330; 10,646,517; 10,653,723; 10,695,372; 10,894,063; 10,905,718; 10,918,666; 10,925,900; 10,933,094;
10,946,044; 10,946,045; 10,953,046; 10,953,047; 11,007,225; 11,007,226; 11,013,770; 11,026,974; 11,040,070; 11,052,115; 11,052,116;
11,058,728; 11,083,752; 11,123,371; 11,141,438; 11,168,303; 11,168,304; 11,179,419; 11,202,803; 11,202,804; 11,220,670; 11,241,456;
11,254,913; 11,266,694; 11,273,180; 11,273,181; 11,291,687; 11,304,979; 11,304,980; 11,311,578; 11,337,998; 11,344,579; 11,344,580;
11,344,581; 11,351,197; 11,351,198; 11,351,199; 11,364,266; 11,369,637; 11,384,337; 11,433,097; 11,517,592; 11,529,372 ; 11,541,077;
11,713,446; 11,819,517; and 11,866,688. More than 40 of these patents are related to our Gen 2 TIL manufacturing processes and have
terms that we anticipate will extend to January 2038, not including any patent term extensions or adjustments that may be available. Our
owned  and  licensed  intellectual  property  portfolio  also  includes  patents  and  patent  applications  relating  to  TIL,  marrow-infiltrating
lymphocytes,  or  MIL,  and  peripheral  blood  lymphocyte,  or  PBL,  therapies;  frozen  tumor-based  TIL  technologies;  remnant  TIL  and
digest TIL compositions, methods and processes; methods of manufacturing TIL, MIL, and PBL therapies; the use of costimulatory and
T  cell  modulating  molecules  in  TIL  cell  therapy  and  manufacturing;  stable  and  transient  genetically-modified  TIL  cell  therapies,
including genetic knockouts of immune checkpoints; cytokine-tethered TIL cell therapies; methods of using ICIs in combination with
TIL cell therapies; TIL selection technologies; and methods of treating patient subpopulations.

Components of Operating Results

Revenues

Subsequent to the acquisition of Proleukin® in May 2023, or the Acquisition, we began to sell Proleukin®. Proleukin® is currently
being  used  in  multiple  active  studies  across  multiple  therapeutic  areas  and  indications  and  investigated  alongside  TIL  cell  therapies
within a number of oncology indications. Proleukin® is also part of our regimens of TIL cell therapy, including Amtagvi™ (lifileucel),
and  is  used  in  our  multiple  clinical  trials.  Revenues  for  the  year  ended  December  31,  2023  represents  product  sales  of  Proleukin®
primarily in licensed markets outside of the U.S. To date, there have been no product sales of Proleukin® in the U.S. market.

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With the recent BLA approval, we expect to generate revenues from the sale of our product Amtagvi™. However, such revenues
for Amtagvi™ and Proleukin® may not be material during the 12 months from the date the consolidated financial statements are issued
and this Annual Report on Form 10-K is filed. Our ability to generate revenues in the future will depend on our ability to successfully
execute  the  launch  of  Amtagvi™,  integrate  the  Proleukin®  business  and  market  Proleukin®,  and  complete  the  development  of  our
product candidates and obtain regulatory approval for them.

Costs and Expenses

Cost of sales

Cost of sales includes the cost of Proleukin® inventories and other costs that are directly associated with the purchase and sales of
Proleukin®.  In  addition,  amortization  expense  for  the  fair  value  step-up  of  acquired  Proleukin®  inventory  and  the  acquired  intangible
asset related to the developed technology are included in cost of sales.

Research and development

Research and development expenses include personnel and facility-related expenses, outside contracted services including clinical
trial costs, manufacturing and process development costs, research costs and other consulting services. Research and development costs
are expensed as incurred. Nonrefundable advance payments for goods or services that will be used or rendered for future research and
development  activities  are  deferred  and  amortized  over  the  period  that  the  goods  are  delivered,  or  the  related  services  are  performed,
subject to an assessment of recoverability.

Clinical development costs are a significant component of research and development expenses. We have a history of contracting
with third parties that perform various clinical trial activities on our behalf in connection with the ongoing development of our product
candidates. The financial terms of these contracts are subject to negotiations and may vary from contract to contract and may result in
uneven payment flow. We accrue and expense costs for clinical trial activities performed by third parties based upon estimates of work
completed to date of the individual trial in accordance with agreements established with contract research organizations and clinical trial
sites. The duration, costs and timing of our clinical trials and development of our product candidates will depend on a number of factors
that include, but are not limited to, the number of patients that enroll in the trial, per patient trial costs, number of sites included in the
trial, discontinuation rates of patients, duration of patient follow-up, efficacy and safety profile of the product candidate, and the length of
time required to enroll eligible patients.

We  expect  to  continue  to  incur  research  and  development  expenses  for  the  foreseeable  future  as  we  continue  to  conduct  our
clinical trials for our various product candidates. We expect our research and development expenses to decrease in conjunction with an
expected increase in commercial activities and selling, general and administrative expense due to the approval of AmtagviTM (lifileucel).
However, it is difficult to determine with certainty the duration and completion costs of our current or future preclinical programs and
clinical trials of our product candidates.

Selling, general and administrative

Selling,  general  and  administrative  expenses  consist  primarily  of  salaries  and  other  related  costs,  including  stock-based
compensation,  for  personnel  in  executive,  finance,  procurement,  legal,  investor  relations,  facilities,  business  development,  marketing,
commercial, information technology and human resources functions. Other significant costs include facility costs not otherwise included
in  research  and  development  expenses,  legal  fees  relating  to  corporate  matters  and  intellectual  property,  insurance,  public  company
expenses  relating  to  maintaining  compliance  with  Nasdaq  listing  rules  and  SEC  requirements,  investor  relations  costs,  and  fees  for
accounting and consulting services. General and administrative costs are expensed as incurred, and we accrue for services provided by
third  parties  related  to  the  above  expenses  by  monitoring  the  status  of  services  provided  and  receiving  estimates  from  its  service
providers and adjusting its accruals as actual costs become known.

We  anticipate  selling,  general  and  administrative  expenses  will  increase  as  we  execute  the  launch  of  Amtagvi™  and  market
Proleukin®, as well as execute an expected expansion of the internal general and administrative team to support the overall growth in our
business.

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Interest income, net

Interest income, net results from our interest-bearing cash and investment balances.

Income tax benefit

Income tax benefit pertains to the operations in the United Kingdom and realization of related deferred taxes.

Results of Operations for the Years Ended December 31, 2023 and 2022

Revenue

(in thousands)
Revenue - product sales

Years Ended December 31, 

2023

2022

$

 1,189

$

 — $

Increase (Decrease)
$
 1,189

%

 100 %

Revenue for the year ended December 31, 2023 was $1.2 million and related entirely to product sales of Proleukin® in licensed
markets outside of the U.S following the completion of the acquisition of worldwide rights to Proleukin® in May 2023. To date, there
have been no product sales of Proleukin® in the U.S. market, which at the time of the Acquisition had sufficient Proleukin® inventory in
existing distributors to support U.S. market demand. There was no revenue for the year ended December 31, 2022.

Costs and expenses

The following table summarizes the period-over-period changes in our costs and expenses:

(in thousands)
Cost of sales
Research and development expense
Selling, general and administrative expense

Cost of sales

Years Ended December 31, 

$

2023
 10,755
 344,077
 106,916

$

2022

 —
 294,781
 104,097

Increase 
(Decrease)

$

 10,755
 49,296
 2,819

%
 100 %
 17 %
 3 %

Cost  of  sales  for  the  year  ended  December  30,  2023  was  $10.7  million,  which  consists  of  $1.0  million  cost  of  inventory  and
related inventoriable costs associated with sales of Proleukin® and $9.7 million of amortization expense for the developed technology
intangible asset recorded as part of the Acquisition. No cost of sales was incurred for the year ended December 31, 2022.

Research and development expense

Research and development expense for the year ended December 31, 2023 increased by $49.3 million, or 17%, compared to the
year ended December 31, 2022. The increase was primarily attributable to (i) a $40.0 million increase in payroll and related expenses,
driven  by  increased  hiring  of  research  and  development  employees  to  support  our  manufacturing  at  iCTC  and  clinical  development
activities,  (ii)  a  $10.3  million  increase  in  manufacturing  costs  to  support  the  increased  production  and  qualifying  iCTC  suites  for
commercial manufacturing readiness, (iii) a $7.0 million increase in clinical trial costs driven primarily by the initiation of our Phase 3
TILVANCE-301  clinical  trial,  (iv)  a  $5.9  million  increase  in  facility  and  related  costs,  including  depreciation,  maintenance,
environmental monitoring and other costs primarily related to the iCTC build-out intended to expand manufacturing capacity, and (v) a
$2.4  million  increase  in  other  costs,  including  license  costs  related  to  the  expansion  of  our  information  technology  infrastructure  to
support our clinical activities and research alliance costs. These expenses were partially offset by (i) a $15.3 million decrease in stock-
based compensation expenses, primarily driven by a lower average stock price, and (ii) a $1.0 million decrease in costs associated with
travel and medical affairs activities such as publications and medical conferences.

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Research and development activities are central to our business model. Product candidates in later stage of clinical development
generally  have  higher  development  costs  than  those  in  earlier  stages  of  clinical  development,  primarily  due  to  the  increased  size  and
duration of later-stage clinical trials. We separate our research and development expenses into two broad categories: direct and indirect.
Additionally,  with  respect  to  direct  research  and  development  expenses,  we  further  divide  expenses  into  the  following  sub-categories:
“TIL, including combination therapy,” “Next Generation,” and “Other clinical, preclinical and research programs under development.”
For direct research and development expenses, we track specific project research and development expenses that are directly attributable
to  our  preclinical  and  clinical  development  candidates  that  have  been  selected  for  further  development.  Such  direct  research  and
development  expenses  include  third-party  contract  costs  relating  to  the  manufacturing  of  TILs  as  well  as  preclinical  and  clinical  trial
activities.

All remaining research and development expenses are categorized as indirect research and development expenses. Such indirect

research  and  development  expenses  include  employee  salaries  and  benefits,  stock-based  compensation,  consulting  and  contracted
services  to  supplement  our  in-house  activities,  and  costs  associated  with  our  facilities.  These  expenses  are  not  directly  tied  to  any
individual project and are generally deployed across multiple projects. As such, we do not maintain information regarding those costs
incurred on a project specific basis.

The table below summarizes our research and development expenses by therapeutic area (in thousands):

Direct research and development expense by product candidate

TIL, including combination therapy

Lifileucel
LN-145  
Combination Therapy

Next Generation
Others clinical, preclinical and research programs under development  

Indirect research and development expenses

Personnel related (excluding stock-based compensation)
Stock-based compensation expenses
Contractors and outside services
Office and facilities
Total Research and Development

Selling, general and administrative expense

Years Ended December 31, 
2022
2023

Increase 
(Decrease)

$

%

$

$

 35,487
 41,386
 17,809
 9,987
 16,983

 116,628
 34,926
 20,636
 50,235
 344,077

$

$

 18,489
 34,129
 26,873
 3,895
 17,136

 84,100
 50,242
 14,457
 45,460
 294,781

 16,998
 7,257
 (9,064)
 6,092
 (153)

 32,528
 (15,316)
 6,179
 4,775
 49,296

92%
21%
-34%
156%
-1%

39%
-30%
43%
11%
17%

Selling, general and administrative expense for the year ended December 31, 2023, increased by $2.8 million, or 3%, compared to
the year ended December 31, 2022. The increase was primarily attributable to (i) a $12.6 million increase in payroll and related expenses,
resulting from increases in headcount to support the growth in the overall business and related corporate infrastructure, and  (ii) a $5.0
million  increase  in  professional  fees  and  travel  costs,  including  costs  associated  with  Proleukin®  integration.  These  increases  were
partially offset by (i) a $6.1 million decrease in stock-based compensation expenses, primarily driven by a lower average stock price, (ii)
a  $4.3  million  decrease  in  legal  costs  related  to  intellectual  property  related  matters,  and  (iii)  a  $4.4  million  decrease  in  other  costs,
including marketing, advertising and software license costs. 

Interest income, net

(in thousands)
Interest income, net

Years Ended December 31, 

2023
 13,043      $

$

2022

 2,985      $

Increase (Decrease)
$
 10,058

%  

 337 %

Interest income results from our interest-bearing cash and investment balances. Net interest income increased by $10.1 million, or
337%, primarily due to increases in interest rates as well as a shift in our portfolio to interest bearing investments such as U.S. treasury
securities and money market funds.

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Income tax benefit

(in thousands)
Income tax benefit

Years Ended December 31, 

2023

2022

$

 3,479      $

 —      $

Increase (Decrease)
$
 3,479

%  

 100 %

Income tax benefit for the year ended December 31, 2023 was $3.5 million as a result of the tax benefit from the realization of the
related deferred taxes for operations in the United Kingdom. No benefit or expense was recorded for the year ended December 31, 2022.

Net loss

(in thousands)
Net loss

Years Ended December 31, 

2023

2022

(Increase) Decrease
%
$

$  (444,037)     $  (395,893)     $

 (48,144)

 12 %

Net loss for the year ended December 31, 2023, increased by $48.1 million or 12.0%, compared to the year ended December 31,
2022. The increase in our net loss was due to the continued expansion of our research and development activities, ongoing and newly
initiated  clinical  trials,  and  the  overall  growth  in  our  workforce  and  corporate  infrastructure  as  well  as  our  pre-commercialization
activities for lifileucel. We anticipate that we will continue to incur net losses in the future as we further invest in our clinical and internal
research and development programs as well as the execution of the launch of Amtagvi™, the Proleukin® business integration, and both
clinical and internal development programs.

Results of Operations for the Years Ended December 31, 2022 and 2021

Revenue

No revenue was recorded for the years ended December 31, 2022 and 2021.

Costs and expenses

The following table summarizes the period-over-period changes in our costs and expenses:

(in thousands)
Research and development expense
Selling, general and administrative expense

Research and development expense

Years Ended December 31, 
2022
 294,781
 104,097

2021
 259,039
 83,664

Increase 
(Decrease)

$

 35,742
 20,433

%

 14 %
 24 %

Research and development expense for the year ended December 31, 2022 increased by $35.7 million, or 14%, compared to the
year ended December 31, 2021. The increase was primarily attributable to (i) a $23.9 million increase in payroll and related expenses and
a $9.4 million increase in stock-based compensation expenses, both driven by increased hiring of research and development employees
to support our on-going and planned clinical development activities, (ii) a $16.2 million increase in facility related expenses, including
depreciation expenses associated with the iCTC and the build-out of our new corporate headquarters office, (iii) a $3.5 million increase
in research and research alliance activities due to increased spend in lab supplies and consumables to support preclinical activities, (iv) a
$2.7 million increase in patient advocacy and physician outreach and travel to support our planned commercial launch, and (v) a $2.4
million increase in license costs associated with the expansion of our information technology infrastructure to support our clinical and
manufacturing activities at the iCTC. These increases were partially offset by a $17.4 million decrease in clinical trial costs, including
clinical trial drug costs, and a $5.0 million decrease in manufacturing costs driven by completion of enrollment in pivotal cohorts of our
clinical trials.

We separate our research and development expenses into two broad categories: direct and indirect. Additionally, with respect to
direct research and development expenses, we further divide expenses into the following sub-categories: “TIL, including combination

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therapy,”  “Next  Generation,”  and  “Other  clinical,  preclinical  and  research  programs  under  development.”  For  direct  research  and
development expenses, we track specific project research and development expenses that are directly attributable to our preclinical and
clinical development candidates that have been selected for further development. Such direct research and development expenses include
third-party contract costs relating to the manufacturing of TILs as well as preclinical and clinical trial activities.

All remaining research and development expenses are categorized as indirect research and development expenses. Such indirect
research  and  development  expenses  include  employee  salaries  and  benefits,  stock-based  compensation,  consulting  and  contracted
services  to  supplement  our  in-house  activities,  and  costs  associated  with  our  facilities.  These  expenses  are  not  directly  tied  to  any
individual project and are generally deployed across multiple projects. As such, we do not maintain information regarding those costs
incurred on a project specific basis.

The table below summarizes our research and development expenses by therapeutic area (in thousands):

Direct research and development expense by product candidate

TIL, including combination therapy

Lifileucel
LN-145  
Combination Therapy

Next Generation
Others clinical, preclinical and research programs under development  

Indirect research and development expenses

Personnel related (excluding stock-based compensation)
Stock-based compensation expenses
Contractors and outside services
Office and facilities
Total Research and Development

Selling, general and administrative expense

Years Ended December 31, 
2021
2022

Increase 
(Decrease)

$

%

 18,489
 34,129
 26,873
 3,895
 17,136

 84,100
 50,242
 14,457
 45,460
 294,781

$

 9,453
 35,878
 52,907
 455
 20,623

 61,352
 40,833
 10,782
 26,754
 259,037

$

 9,036
 (1,749)
 (26,034)
 3,440
 (3,487)

 22,748
 9,409
 3,675
 18,706
 35,744

96%
-5%
-49%
756%
-17%

37%
23%
34%
70%
14%

Selling, general and administrative expense for the year ended December 31, 2022, increased by $20.4 million, or 24%, compared
to  the  year  ended  December  31,  2021.  The  increase  was  primarily  attributable  to  (i)  a  $10.0  million  increase  in  payroll  and  related
expenses and a $4.8 million increase in stock-based compensation expenses, both resulting from increases in headcount to support the
growth in the overall business and related corporate infrastructure, (ii) a $3.4 million increase in marketing, advertising and travel related
costs  related  to  branding  awareness  to  support  our  planned  commercial  launch,  (iii)  a  $1.7  million  increase  in  other  costs,  including
professional fees and costs associated with the build-out of our new headquarter office and our information technology infrastructure to
support the continued growth in the overall company, and (iv) a $0.5 million increase in depreciation expenses and facility related costs
associated with the build-out of our new corporate headquarters.

Interest income, net

(in thousands)
Interest income, net

     Years Ended December 31, 

2022
 2,985

$

2021

$

 451

$

Increase (Decrease)
%
 562 %

$
 2,534     

Interest income results from our interest-bearing cash and investment balances. Net interest income increased by $2.5 million, or
562%, primarily due to an increase in interest rates as well as a shift in our portfolio to interest bearing investments such as U.S. treasury
securities and money market funds.

Net loss

(in thousands)
Net loss

96

     Years Ended December 31, 

2022

2021
$ (395,893) $  (342,252) $  (53,641)    

$

 16 %

(Increase) Decrease
%

    
  
    
 
    
    
    
    
 
    
 
    
    
    
    
 
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Net loss for the year ended December 31, 2022, increased by $53.6 million or 16%, compared to the year ended December 31,
2021. The increase in our net loss was due to the continued expansion of our research and development activities, and the overall growth
of our corporate infrastructure.

Liquidity and Capital Resources

We  have  incurred  losses  and  generated  negative  cash  flows  from  operations  since  inception.  Historically,  we  have  funded  our
operations from various public and private offerings of our equity securities, both common stock and preferred stock, from option and
warrant  exercises,  and  from  interest  income.  Since  2017,  our  primary  source  of  funds  has  been  from  the  public  sale  of  our  common
stock.  With  the  recent  approval  of  our  BLA,  we  expect  to  generate  revenue  from  the  sale  of  our  product,  Amtagvi™  (lifileucel).
Furthermore, upon the completion of the closing of the acquisition of the worldwide rights to Proleukin® in the second quarter of 2023,
we began to generate revenue from the sales of Proleukin®. However, such revenues for Amtagvi™ and Proleukin® may not be material
during the 12 months from the date the consolidated financial statements are issued and this Annual Report on Form 10-K is filed. As of
December 31, 2023, we had $346.3 million in cash, cash equivalents, investments, and restricted cash ($114.9 million of cash and cash
equivalents, $165.0 million in short-term investments, and $66.4 million in restricted cash).

We  expect  to  continue  to  incur  significant  expenses  to  support  our  execution  of  the  commercial  launch  of  Amtagvi™,  fund
ongoing  clinical  programs,  including  our  NSCLC  registration  study,  IOV-LUN-202,  and  our  frontline  advanced  melanoma  Phase  3
confirmatory  trial,  TILVANCE-301,  continue  the  development  of  our  pipeline  candidates,  and  for  other  general  corporate  purposes.
Based  on  the  funds  we  have  available  as  of  the  date  our  consolidated  financial  statements  for  the  year  ended  December  31,  2023  are
issued, which include estimated net proceeds (after deducting underwriting and other offering expenses) of approximately $197.1 million
from the public offering of our common stock completed on February 22, 2024, we believe that we have sufficient capital to fund our
anticipated  operating  expenses  and  capital  expenditures  as  planned  for  at  least  the  next  twelve  months  following  the  issuance  of  our
consolidated financial statements included in this Annual Report on Form 10-K.

Corporate Capitalization

As of December 31, 2023, we had outstanding 256,135,715 shares of our $0.000041666 par value common stock, 194 shares of
our $0.001 par value Series A Convertible Preferred Stock, and 2,842,158 shares of our $0.001 par value Series B Convertible Preferred
Stock. The outstanding shares of Series A Convertible Preferred Stock are currently convertible into 97,000 shares of our common stock,
and the outstanding shares of Series B Convertible Preferred Stock are currently convertible into 2,842,158 shares of our common stock.
The  shares  of  Series  A  Convertible  Preferred  Stock  and  Series  B  Convertible  Preferred  Stock  do  not  have  voting  rights  or  accrue
dividends.

On  February  8,  2021,  we  entered  into  an  Open  Market  Sale  Agreement,  or  the  2021  Sale  Agreement,  with  Jefferies  LLC,  or
Jefferies, with respect to an “at the market” offering program, under which we were able to, from time to time, in our sole discretion,
issue and sell through Jefferies, acting as sales agent, up to $350.0 million of shares of our common stock.

On November 18, 2022, we entered into a new Open Market Sale Agreement, or the 2022 Sale Agreement, with Jefferies with
respect to an “at the market” offering program. Under the terms of the 2022 Sale Agreement, we were able to, from time to time, in our
sole discretion, issue and sell up to $500.0 million of shares of our common stock pursuant to the “at the market” offering program. The
2022 Sale Agreement superseded and replaced in its entirety the 2021 Sale Agreement, which was terminated by the Company.

On June 16, 2023, we entered into a new Open Market Sale Agreement, or the 2023 Sale Agreement, with Jefferies with respect to
an “at the market” offering program. Under the terms of the 2023 Sale Agreement, we may, from time to time, in our sole discretion,
issue  and  sell  up  to  $450.0  million  of  shares  of  our  common  stock  pursuant  to  the  “at  the  market”  offering  program.  The  2023  Sale
Agreement superseded and replaced in its entirety the 2022 Sale Agreement, which was terminated by the Company. The issuance and
sale, if any, of shares of our common stock under the 2023 Sale Agreement was or will be made pursuant to a prospectus supplement
dated  June  16,  2023  to  our  Registration  Statement  on  Form  S-3ASR,  which  became  effective  immediately  upon  filing  with  the  U.S.
Securities and Exchange Commission on June 16, 2023. We received $301.7 million in proceeds, net of offering costs, through the sale
of 44,080,226 shares of our common stock during 2023.

On  July  13,  2023,  we  closed  an  underwritten  public  offering  of  23,000,000  shares  of  our  common  stock,  which  included
3,000,000 shares issued pursuant to the exercise of the option granted to the underwriters, at a public offering price of $7.50 per share,
before underwriting discounts and commissions. The total estimated net proceeds to us from the offering, including the exercise of the
option

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by  the  underwriters,  were  $161.5  million  after  deducting  underwriting  discounts  and  commissions  and  estimated  offering  expenses
payable by us.

On February 22, 2024, we closed an underwritten public offering of 23,014,000 shares of our common stock at a public offering
price of $9.15 per share, before underwriting discounts and commissions. The total estimated net proceeds to us from the offering are
expected to be approximately $197.1 million after deducting underwriting discounts and commissions and estimated offering expenses
payable by us.

In the future, we may periodically offer one or more of these securities in amounts, prices and terms to be announced when and if
the  securities  are  offered.  If  any  of  the  securities  covered  by  the  2020  Shelf  Registration  Statement  are  offered  for  sale,  a  prospectus
supplement will be prepared and filed with the SEC containing specific information about the terms of such offering at that time.

Cash Flows

Cash flows from operating, investing and financing activities (in thousands):

Net cash (used in) provided by:
   Operating activities
   Investing activities
   Financing activities
Net increase in cash, cash equivalents and restricted cash
* Excludes effect of exchange rate changes

Operating Activities

Years Ended December 31, 
2022

2021

2023

$  (361,820)
 (155,242)
 462,959
$  (54,103)

$  (292,757)
 256,455
 190,150
$  153,848

$  (227,941)
 132
 239,268
 11,459

$

Net  cash  used  in  operating  activities  represents  cash  disbursements  related  to  all  of  our  activities  other  than  investing  and
financing  activities.  Operating  cash  flow  is  derived  by  adjusting  our  net  loss  for  non-cash  items  and  changes  in  operating  assets  and
liabilities. Net cash used in operating activities for the year ended December 31, 2023 was $361.8 million compared to $292.8 million for
the same period in 2022. The increase of $69.1 million in cash used in operating activities was primarily due to a $48.1 million increase
in net loss related to increased costs in research and development, including the overall expansion of our clinical trials for new TIL cell
therapies  as  well  as  our  pre-commercialization  activities  for  lifileucel,  and  the  overall  growth  in  our  workforce  and  corporate
infrastructure.  In  addition,  it  reflects  a  decrease  in  non-cash  charges  of  $17.3  million  primarily  driven  by  lower  stock-based
compensation expenses and accretion of discount on investments, partially offset by increases in amortization of intangible assets driven
primarily  by  the  amortization  associated  with  the  developed  technology  intangible  asset  acquired  as  part  of  the  Acquisition  and  in
depreciation  expense  resulting  primarily  from  additional  fixed  assets  put  in  service  at  the  iCTC. Further, net cash used by changes in
operating assets and liabilities increased by $27.1 million, driven primarily by cash used for the purchase of Proleukin® inventory as part
of the Acquisition and an increase in lease payments for our lease arrangements, resulting primarily from the full utilization of tenant
improvement allowances offered under our lease agreements during 2022. These increases in the use of cash were partially offset by a
net $23.4 million decrease in cash used, driven by an increase in accounts payable and accrued expenses, which primarily resulted from
the timing of vendor invoicing and related payments.

Net cash used in operating activities for the year ended December 31, 2022, was $292.8 million compared to $227.9 million for
the same period in 2021. The increase of $64.8 million in cash used in operating activities was primarily due to an increase in net loss
driven by increased costs in research and development and pre-commercial activities, which was partially offset by an increase in non-
cash  charges  of  $16.3  million  primarily  driven  by  higher  stock-based  compensation  expenses,  operating  right-of-use  assets  associated
with  our  office  and  manufacturing  facility  as  well  as  embedded  leases,  and  depreciation  expenses,  partially  offset  by  accretion  of
discount on investments. In addition, it reflects a $31.4 million increase in cash used by assets and liabilities driven primarily by changes
in accruals and accounts payable as well as prepaid assets, resulting from the increased workforce, overall growth in the business and
operations, and the timing of vendor invoicing and related payments. These increases were offset by a net increase in our operating lease
liabilities primarily driven by receipts of tenant improvement allowances for our new corporate headquarters office.

Net cash used in operating activities for the year ended December 31, 2021 was $227.9 million compared to $205.1 million for the

same period in 2020. The increase of $22.8 million in cash used in operating activities was primarily due to an increase in net loss

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driven by increased costs in research and development and pre-commercial activities, which was partially offset by an increase in non-
cash charges of $38.3 million primarily driven by higher stock-based compensation expenses, amortization of premiums on investments
and  operating  right-of-use  assets  associated  with  our  office  and  manufacturing  facility  as  well  as  embedded  leases,  and  depreciation
expenses.  In  addition,  it  reflects  a  $5.6  million  reduction  in  our  operating  lease  liabilities  associated  with  payments  on  lease
arrangements, offset by a $16.0 million increase in accruals and accounts payable primarily related to our increased workforce, overall
growth in the business and operations, and the timing of vendor invoicing and related payments.

Investing Activities

Net cash (used in)/provided by investing activities primarily relates to the cash utilized to fund the Acquisition and the purchases
and maturities of our investments and capital expenditures. Net cash used in investing activities for the year ended December 31, 2023
was $155.2 million compared to net cash provided by investing activities of $256.5 million for the same period in 2022. The increase in
cash  used  of  $411.7  million  was  driven  by  the  $212.6  million  payment  for  the  acquisition  of  the  Proleukin®  business,  excluding  the
payment of acquired inventories, which is presented in operating activities, and a $1.9 million increase in capital expenditures, offset by a
$197.2 million net increase in the timing of maturities and purchases of investments.

Net  cash  (used  in)  /  provided  by  investing  activities  primarily  consists  of  purchases,  maturities  of  our  investments  and  capital
expenditures. Net cash provided by investing activities for the year ended December 31, 2022 was $256.5 million compared to net cash
provided  by  investing  activities  of  $0.1  million  for  the  same  period  in  2021.  The  increase  in  cash  provided  by  investing  activities  of
$256.4 million was primarily due to the timing of maturities and purchases of investments and lower capital expenditures in 2022.

Net cash provided by investing activities for the year ended December 31, 2021 was $0.1 million compared to net cash used in
investing activities of $317.9 million for the same period in 2020. The increase in cash provided by investing activities of $318.0 million
was primarily due to the timing of maturities and purchases of investments and lower capital expenditures in 2021.

Financing Activities

Net  cash  provided  by  financing  activities  for  the  year  ended  December  31,  2023  was  $463.0  million  compared  to  net  cash
provided of $190.2 million for the same period in 2022. The increase in net cash provided by financing activities of $272.8 million was
driven by a $273.8 million increase in net proceeds received from sales of common stock pursuant to the June 2023 underwritten public
offering and our “at the market” offering program as well as $0.8 million received from the issuance of common stock under the 2020
Employee Stock Purchase Plan, or the 2020 ESPP. These increases were partially offset by a $1.6 million decrease in proceeds from the
issuance of common stock upon the exercise of stock options.

Net  cash  provided  by  financing  activities  for  the  year  ended  December  31,  2022  was  $190.2  million  compared  to  net  cash
provided of $239.3 million for the same period in 2021. The net cash provided by financing activities during the year ended December
30, 2022, related to $189.5 million net cash proceeds from our “at the market” offering, $1.7 million of cash receipts from the issuance of
common stock under the 2020 ESPP, and $1.6 million of cash receipts from the issuance of common stock upon the exercise of stock
options. This was offset by cash used of $2.6 million for tax payments related to vested RSUs.

Net  cash  provided  by  financing  activities  for  the  year  ended  December  31,  2021  was  $239.3  million  compared  to  net  cash
provided of $576.4 million for the same period in 2020. The net cash provided by financing activities during the year ended December
30,  2021,  related  to  $203.2  million  net  cash  proceeds  from  our  “at  the  market”  offering  and  $33.5  million  of  cash  receipts  from  the
issuance  of  common  stock  upon  the  exercise  of  stock  options.  The  net  cash  provided  by  financing  activities  during  the  year  ended
December 31, 2020, primarily related to $567.0 million net cash proceeds received in the June 2020 public offering and $9.7 million cash
proceeds from issuance of common stock upon exercise of stock options in 2021.

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Contractual Obligations

The following table summarizes our non-cancellable contractual obligations as of December 31, 2023, and the effects that such

obligations are expected to have on our liquidity and cash flows in future periods (in thousands):

Operating lease obligations - facilities
(1)
Purchase obligations (2)

 Total (3)

Total

2024

Payments due by period
2026

2027

2025

2028

     Thereafter

$  116,905
 34,254
$  151,159

$

 8,579
 8,158
$  16,737

$

 8,324
 11,418
$  19,742

$

 7,989
 7,339
$  15,328

$

 8,186
 7,339
$  15,525

$

$

 8,389
 —
 8,389

$  75,438
 —
$  75,438

(1)

Our  operating  lease  obligations  consist  of  obligations  under  non-cancellable  operating  leases  for  our  facilities  in  San  Carlos,  CA,
Philadelphia, PA, and Tampa, FL.
Excluded  from  the  above  are  contractual  obligations  with  a  CMO  for  the  manufacturing  facilities  and  minimum  fixed  commitment  fees
included in our manufacturing contracts, such as personnel, general support fee, and minimum production or material fees. These obligations
met the conditions of embedded leases under Topic ASC 842 and were included in the Operating lease liabilities in the consolidated balance
sheets. However, these contracts are cancellable upon prior notice and as a result, are not included in the above table.

(2) We have purchase obligations of $34.3 million related to manufacturing and supply agreements for Proleukin® under a contract we inherited

as part of the Acquisition.

(3) We acquire assets still in development and enter into research and development arrangements with third parties that often require milestone
and  royalty  payments  to  the  third-party  contingent  upon  the  occurrence  of  certain  future  events  linked  to  the  success  of  the  asset  in
development. Milestone payments may be required, contingent upon the successful achievement of an important point in the development
life-cycle of the pharmaceutical product (e.g., approval of the product for marketing by a regulatory agency). If required by the arrangement,
we  may  have  to  make  royalty  payments  based  upon  a  percentage  of  the  sales  of  the  pharmaceutical  product  in  the  event  that  regulatory
approval  for  marketing  is  obtained.  Because  of  the  contingent  nature  of  these  milestone  payments,  they  are  not  included  in  the  table  of
contractual obligations.
These arrangements may be material individually, and in the event that milestones for multiple products covered by these arrangements were
reached in the same period, the aggregate charge to expense could be material to the results of operations in any one period. In addition, these
arrangements  often  give  us  the  discretion  to  unilaterally  terminate  development  of  the  product,  which  would  allow  us  to  avoid  making
contingent payments.

Off-Balance Sheet Arrangements

As of December 31, 2023 we did not have, and currently do not have, any off-balance sheet arrangements.

Critical Accounting Policies and Significant Judgements and Estimates

Our accounting policies are more fully described in Note 2 of the consolidated financial statements included in this Annual Report
on  Form  10-K.  As  described  in  Note  2,  the  preparation  of  our  consolidated  financial  statements  requires  us  to  make  estimates  and
judgments that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of our
financial  statements  as  well  as  the  reported  revenues  and  expenses  during  the  reported  periods.  We  base  our  estimates  on  historical
experience and on various market-specific and other relevant assumptions that we believe to be reasonable under the circumstances, the
results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from
other  sources.  Estimates  are  assessed  each  period  and  updated  to  reflect  current  information.  Actual  results  may  differ  from  these
estimates under different assumptions or conditions.

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We believe the following critical accounting policies reflect the more significant judgments and estimates used in the preparation

of our consolidated financial statements:

Asset Acquisitions

We  make  certain  judgments  to  determine  whether  transactions  should  be  accounted  for  acquisitions  of  assets  or  business
combinations using the guidance in Accounting Standard Codification, or ASC, Topic 805, Business Combinations by first applying a
screen test to assess if substantially all of the fair value of the gross assets acquired is concentrated in a single identifiable asset or group
of assets. If the screen test is met, the transaction is accounted for as an asset acquisition. If the screen test is not met, further assessment
is required to determine whether we have acquired inputs and processes that have the ability to create outputs, which would meet the
requirements of a business.

If the assets acquired do not constitute a business, we account for asset acquisitions using the cost accumulation and allocation
method. Under this method, the cost of the acquisition, including direct acquisition-related costs, is allocated to the assets acquired on a
relative fair value basis. Goodwill is not recognized in an asset acquisition and any difference between consideration transferred and the
fair value of the net assets acquired is allocated to the identifiable assets acquired based on their relative fair values.

Deferred tax liabilities arising from basis differences in assets acquired are calculated using the simultaneous equations method
under ASC 740, Income Taxes and based on the effective tax rate. The resulting deferred tax liability is recorded against the carrying
amount of the acquired intangible assets on a relative fair value basis.

Contingent consideration in the scope of ASC Topic 815, Derivatives and Hedging, is included in the cost of the asset acquisition
at its acquisition date fair value. Contingent consideration in the scope of ASC Topic 450, Contingencies, is recognized when it is both
probable and reasonably estimable.

Intangible Assets

Our intangible assets are initially measured based on an allocation of the cost of the acquisition to the assets acquired on a relative
fair value basis and are recorded net of accumulated amortization. We amortize the intangible assets on a straight-line basis over their
estimated useful lives.

When contingent consideration is a component of the cost of an asset acquisition, we capitalize the amount of incremental cost
from the contingent consideration related to the intangible asset acquired in the period the underlying contingency is resolved. When this
occurs, we will recognize a cumulative catch-up to reflect amortization on the intangible assets that would have been recognized had the
incremental cost from the contingent consideration been recorded as of the acquisition date.

We  review  intangible  assets  for  impairment  at  least  annually  and  whenever  events  or  changes  in  circumstances  have  occurred
which could indicate that the carrying value of the assets are not recoverable. If such indicators are present, we assess the recoverability
of  affected  assets  by  determining  if  the  carrying  value  of  the  assets  is  less  than  the  sum  of  the  undiscounted  future  cash  flows  of  the
assets. If the assets are found to not be recoverable, we measure the amount of impairment by comparing the carrying value of the assets
to their fair values. We determined that no indicators of impairment existed as of December 31, 2023. No intangible assets existed as of
December 31, 2022.

Revenue Recognition

We recognize revenue from product sales in accordance with ASC 606, Revenue from Contracts with Customers. Under ASC 606,
revenue is recognized when a customer obtains control of promised goods or services in an amount that reflects the consideration which
the entity expects to receive in exchange for those goods or services. To the extent the transaction price includes variable consideration,
we estimate the amount of variable consideration that should be included in the transaction price using the most likely method based on
historical experience as well as applicable information currently available.

Accrued Research and Development Costs

Research  and  development  costs  are  expensed  as  incurred.  Clinical  development  costs  compose  a  significant  component  of
research and development costs. We have a history of contracting with third parties, including CROs, independent clinical investigators,
and  CMOs,  that  perform  various  clinical  trial  activities  on  our  behalf  in  connection  with  the  ongoing  development  of  our  product
candidates. The financial terms of these contracts are subject to negotiations and may vary from contract to contract and may result in

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uneven payment flow. We accrue and expense costs for clinical trial activities performed by third parties based upon the work completed
to date for each clinical trial in accordance with agreements established with CROs, hospitals, and clinical investigators. Accruals for
CROs and CMOs are recorded based on services received and efforts expended pursuant to agreements established with CROs, CMOs,
and other outside service providers. We determine our costs through discussions with internal clinical stakeholders and outside service
providers as to the progress or stage of completion of clinical trials or services and the contracted fee to be paid for such services.

Included  in  our  clinical  development  costs  are  investigator  costs,  which  are  costs  associated  with  treatments  administered  at
clinical sites as required under each clinical trial protocol. Our estimates for clinical investigator costs and timing of expense recognition
will depend on a number of factors that include, but are not limited to, (i) the overall number of patients that enroll in the trial at each
individual site, (ii) the length of clinical trial enrollment period, (iii) discontinuation and completion rates of patients, (iv) duration of
patient safety follow-ups, (v) the number of sites included in the clinical trial, and (vi) the contracted fee of each participating site for
patient  treatment  while  on  clinical  trial,  which  can  vary  greatly  for  several  reasons  including,  but  not  limited  to,  geographic  region,
medical center or physician costs, and overhead costs. In addition, our estimates for per patient trial costs will vary based on a number of
factors that include, but are not limited to, the extent of additional treatments that may be administered by investigators as a result of
patient health status, recoverability of patient costs through insurance carriers of patients, and unanticipated cost of injuries incurred as a
result of the clinical trial treatment. We accrue estimated expenses resulting from obligations under investigator site agreements as the
timing  of  payments  does  not  always  timely  align  with  the  periods  over  which  the  treatments  are  administered  by  the  clinical
investigators. These estimates are typically based on contracted amounts, patient visit data, discussions with internal clinical stakeholders
and outside service providers, and historical look-back analysis of actual payments made to date.

We make judgements and estimates in determining the accrual balance in each reporting period. In the event advance payments
are made to a CRO, CMO, or other outside service provider, the payments are recorded within prepaid expenses and other current assets
and subsequently recognized as research and development expense when the associated services have been performed. As actual costs
become known, we adjust our estimates, liabilities and assets. Inputs used in our determination of estimates discussed above may vary
from actual, which will result in adjustments to research and development expense in future periods.

Recent Accounting Standards

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which
enhances the disclosures of income taxes. ASU 2023-09 is effective for us in our annual reporting for fiscal year 2025 on a prospective
basis.  Early  adoption  and  retrospective  reporting  are  permitted.  We  are  currently  evaluating  the  impact  of  ASU  2023-09  on  our
consolidated financial statements.

In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures,
which enhances the disclosures required for operating segments in annual and interim consolidated financial statements. ASC 2023-07 is
effective  for  us  in  our  annual  reporting  for  fiscal  year  2024  and  for  interim  period  reporting  beginning  in  fiscal  year  2025  on  a
retrospective basis. Early adoption is permitted. We are currently evaluating the impact of ASC 2023-07 on our consolidated financial
statements

Item 7A.         Quantitative and Qualitative Disclosures About Market Risk

Interest Rate Risk

Our exposure to market risk is limited primarily to interest income sensitivity, which is affected by changes in the general level of
U.S. interest rates, particularly because a significant portion of our investments are in interest bearing cash accounts consisting of short-
term debt securities issued by the U.S. government. The primary objective of our investment activities is to preserve principal. We adhere
to  an  investment  policy  that  requires  us  to  limit  amounts  invested  in  securities  based  on  credit  rating,  maturity,  industry  group  and
investment type and issuer, except for securities issued by the U.S. government. We do not have any derivative financial instruments or
foreign currency instruments. As of December 31, 2023, we had $199.0 million invested in marketable securities with a maturity date of
less than one year. As such we believe that we are not exposed to any material market risk. If interest rates had varied by 1% in the year
ended December 31, 2023, the fair value of our investment portfolio would increase or decrease by approximately $0.4 million.

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Inflation Risk

Inflation  has  not  had  a  material  effect  on  our  business,  financial  condition  or  results  of  operations  during  the  years  ended

December 31, 2023, 2022, or 2021.

Foreign currency exchange risk

In addition to our existing foreign operations, we acquired and established newly formed foreign subsidiaries to consummate our
acquisition  of  worldwide  rights  in  Proleukin®  in  the  second  quarter  of  2023.  As  a  result,  our  financial  results  could  be  significantly
affected by factors such as changes in foreign currency exchange rates or weak economic conditions in the foreign markets in which we
distribute Proleukin®.  Our  operating  results  could  be  exposed  to  changes  in  foreign  currency  exchange  rates  between  U.S.  dollar  and
various foreign currencies, the most significant of which is the pound sterling. When the U.S. dollar strengthens against these currencies,
the relative value of sales made in the respective foreign currency decreases. Conversely, when the U.S. dollar weakens against these
currencies, the relative value of such sales increase.

All  of  our  product  sales  during  the  year  ended  December  31,  2023  were  denominated  in  foreign  currencies;  however,  foreign
currency transaction gain was immaterial for the year ended December 31, 2023. No foreign currency exchange risk existed for the year
ended December 31, 2022 or 2021.

Item 8.          Financial Statements and Supplementary Data

Financial  Statements  are  referred  to  in  Item  15,  listed  in  the  Index  to  Financial  Statements  as  a  part  of  this  Annual  Report  on

Form 10-K, and are incorporated herein by this reference.

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

None.

Item 9A.        Controls and Procedures

(a)  Evaluation of Disclosure Controls and Procedures:

We  maintain  disclosure  controls  and  procedures  that  are  designed  to  ensure  that  information  required  to  be  disclosed  in  our
Exchange Act reports is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms
and  that  such  information  is  accumulated  and  communicated  to  our  management,  including  our  Chief  Executive  Officer  and  Chief
Financial Officer, as appropriate, to allow for timely decisions regarding required disclosure. In designing and evaluating the disclosure
controls  and  procedures,  management  recognizes  that  any  controls  and  procedures,  no  matter  how  well  designed  and  operated,  can
provide  only  reasonable  assurance  of  achieving  the  desired  control  objectives,  and  in  reaching  a  reasonable  level  of  assurance,
management is required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

As of the end of the period covered by this Annual Report on Form 10-K, we carried out an evaluation, under the supervision and
with the participation of our management, including our Chief Executive Officer and our Chief Financial Officer, of the effectiveness of
the  design  and  operation  of  our  disclosure  controls  and  procedures.  Based  on  the  foregoing,  our  Chief  Executive  Officer  and  Chief
Financial Officer concluded that our disclosure controls and procedures were effective at the reasonable assurance level.

(b)  Management’s Annual Report on Internal Control Over Financial Reporting:

Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is
defined in Exchange Act Rules 13a-15(f) and 15d-15(f). Under the supervision and with the participation of our management, including
our  Chief  Executive  Officer  and  Chief  Financial  Officer,  we  conducted  an  evaluation  of  the  effectiveness  of  our  internal  control  over
financial reporting as of December 31, 2022, based on the framework in Internal Control—Integrated Framework 2013 issued by the
Committee of Sponsoring Organizations of the Treadway Commission, or COSO. Based on that evaluation, our management concluded
that our internal control over financial reporting was effective as of December 31, 2023.

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The independent registered public accounting firm, Ernst and Young LLP, has issued an audit report on our internal control over

financial reporting. The report on the audit of internal control over financial reporting is included in this Annual Report on Form 10-K.

(c)  Changes in Internal Control Over Financial Reporting:

There has been no change in our internal control over financial reporting during our most recent fiscal quarter that has materially

affected, or is reasonably likely to materially affect, our internal control over financial reporting.

Item 9B.        Other Information

During  the  fourth  quarter  of  2023,  none  of  our  directors  or  executive  officers  adopted  or  terminated  a  Rule  10b5-1  trading
arrangement (as defined in Item 408(a)(1)(i) of Regulation S-K) or adopted or terminated a non-Rule 10b5-1 trading arrangement (as
defined in Item 408(c) of Regulation S-K) for the purchase or sale of securities of the Company, whether or not intended to satisfy the
affirmative defense conditions of Rule 10b5-1(c) of the Exchange Act.

During the fourth quarter of 2023, the Company did not adopt or terminate a Rule 10b5-1 trading arrangement (as defined in Item
408(a)(1)(i) of Regulation S-K) for the purchase or sale of securities of the Company, whether or not intended to satisfy the affirmative
defense conditions of Rule 10b5-1(c) of the Exchange Act.

On  February  16,  2024,  we  received  approval  from  the  FDA  for  Amtagvi™,  a  tumor-derived  autologous  T  cell  immunotherapy
indicated for the treatment of adult patients with unresectable or metastatic melanoma previously treated with a PD-1 blocking antibody,
and if BRAF V600 mutation positive, a BRAF inhibitor with or without a MEK inhibitor. This indication is approved under accelerated
approval based on an endpoint of overall response rate.

On February 22, 2024, we announced the closing of the sale of an aggregate of 23,014,000 shares of our common stock, pursuant
to an underwriting agreement with Jefferies, Barclays Capital Inc., and Goldman Sachs & Co. LLC at a public offering price of $9.15 per
share,  before  underwriting  discounts  and  commissions.  The  total  estimated  net  proceeds  to  us  from  the  offering  are  expected  to  be
approximately $197.1 million after deducting underwriting discounts and commissions and estimated offering expenses payable by us.

PART III

Certain information required by Part III is omitted from this Annual Report on Form 10-K because we will file a definitive Proxy
Statement  for  the  Annual  Meeting  of  Stockholders  pursuant  to  Regulation  14A  of  the  Securities  Exchange  Act  of  1934  (the  Proxy
Statement),  not  later  than  120  days  after  the  end  of  the  fiscal  year  covered  by  this  Annual  Report  on  Form  10-K,  and  the  applicable
information included in the Proxy Statement is incorporated herein by reference.

Item 10.          Directors, Executive Officers, and Corporate Governance

Information required by this Item 10 will be presented in the Proxy Statement “Election of Directors,” “Management Executive
Officers,”  “Section  16(a)  Beneficial  Ownership  Reporting  Compliance”  and  “Board  of  Directors  and  Corporate  Governance,”  and  is
incorporated herein by reference.

Item 11.          Executive Compensation

The  information  required  by  this  Item  is  incorporated  herein  by  reference  to  the  sections  entitled  “Executive  Compensation,”

“Executive Compensation—Compensation Discussion and Analysis” and “Directors’ Compensation” in the Proxy Statement.

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

The information required by this Item is incorporated herein by reference to the sections entitled “Security Ownership of Certain

Beneficial Owners and Management” and “Equity Compensation Plan Information” in the Proxy Statement.

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

The  information  required  by  this  Item  is  incorporated  herein  by  reference  to  the  section  entitled  “Certain  Relationships  and

Related Transactions” in the Proxy Statement.

Item 14.           Principal Accountant’s Fees and Services

Information  required  by  this  Item  is  incorporated  herein  by  reference  to  the  section  of  the  Proxy  Statement  entitled  “Principal

Accountant Fees and Services.”

Item 15.           Exhibits, Financial Statements Schedules

PART IV

The Company’s consolidated financial statements and related notes thereto are listed and included in this Annual Report on Form
10-K beginning on page F-1. The following exhibits are filed with, or are incorporated by reference into, this Annual Report on Form 10-
K.

EXHIBIT INDEX

Exhibit
2.1

3.1

3.2

3.3

3.4

3.5

3.6

3.7

3.8

4.1

4.2

10.1

10.2

10.3

10.4

Description
Plan of Conversion (incorporated herein by reference to Exhibit 2.1 to the Registrant’s Current Report on Form 8-K filed
with the Commission on June 2, 2017).
Articles  of  Conversion  (incorporated  herein  by  reference  to  Exhibit  3.1  to  the  Registrant’s  Current  Report  on  Form  8-K
filed with the Commission on June 2, 2017).
Certificate of Conversion (incorporated herein by reference to Exhibit 3.2 to the Registrant’s Current Report on Form 8-K
filed with the Commission on June 2, 2017).
Certificate of Incorporation (incorporated herein by reference to Exhibit 3.3 to the Registrant’s Current Report on Form 8-
K filed with the Commission on June 2, 2017).
Certificate  of  Designations  of  Rights,  Preferences  and  Privileges  of  Series A  Convertible  Preferred  Stock  (incorporated
herein  by  reference  to  Exhibit  3.4  to  the  Registrant’s  Post-Effective  Amendment  No.  1  to  the  Registration  Statement  on
Form S-3 (file no. 333-214073) filed with the Commission on July 31, 2017).
Certificate  of  Designations  of  Rights,  Preferences  and  Privileges  of  Series  B  Preferred  Stock  (incorporated  herein  by
reference  to  Exhibit  3.5  to  the  Registrant’s  Post-Effective  Amendment  No.  1  to  the  Registration  Statement  on  Form  S-3
(file no. 333-214073 incorporated by reference into file no. 333-212373) filed with the Commission on July 31, 2017).
Certificate  of  Amendment  of  Certificate  of  Incorporation  (incorporated  herein  by  reference  to  Exhibit  3.1  to  the
Registrant’s Current Report on Form 8-K filed with the Commission on June 27, 2017).
Certificate  of  Amendment  of  Certificate  of  Incorporation  (incorporated  herein  by  reference  to  Exhibit  3.1  to  the
Registrant’s Current Report on Form 8 K filed with the Commission on June 11, 2019).
Third Amended and Restated Bylaws (incorporated herein by reference to Exhibit 3.1 to the Registrant’s Current Report on
Form 8-K filed with the Commission on April 29, 2022).
Specimen  of  Stock  Certificate  (incorporated  herein  by  reference  to  Exhibit  4.2  to  the  Registrant’s  Annual  Report  on
Form 10-K filed with the Commission on March 12, 2018).
Description of Securities (incorporated herein by reference to Exhibit 4.3 to the Registrant’s Annual Report on Form 10-K
filed with the Commission on March 6, 2019).
Genesis Biopharma, Inc. 2011 Equity Incentive Plan (incorporated herein by reference to Exhibit 10.3 to the Registrant’s
Current Report on Form 8 K filed with the Commission on October 20, 2011).#
Form of Incentive Stock Option Agreement under the Genesis Biopharma Inc. 2011 Equity Incentive Plan (incorporated
herein  by  reference  to  Exhibit  10.4  to  the  Registrant’s  Annual  Report  on  Form  10-K  filed  with  the  Commission  on
February 25, 2020).#
Form  of  Non-Qualified  Stock  Option  Agreement  under  the  Genesis  Biopharma  Inc.  2011  Equity  Incentive  Plan
(incorporated  herein  by  reference  to  Exhibit  10.5  to  the  Registrant’s  Annual  Report  on  Form  10-K  filed  with  the
Commission on February 25, 2020).#
Lion Biotechnologies, Inc. 2014 Equity Incentive Plan, as amended (incorporated herein by reference to Appendix A to the
Registrant’s Definitive Proxy Statement on Schedule 14A filed with the Commission on July 7, 2016).#

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10.5

10.6

10.7

10.8

10.9

10.10

10.11

10.12

10.13

10.14

10.15

10.16

10.17

10.18

10.19

10.20

10.21

10.22

Form of Incentive Stock Option Agreement under the Lion Biotechnologies, Inc. 2014 Equity Incentive Plan (incorporated
herein  by  reference  to  Exhibit  10.7  to  the  Registrant’s  Annual  Report  on  Form  10-K  filed  with  the  Commission  on
February 25, 2020).#
Form  of  Non-Qualified  Stock  Option  Agreement  under  the  Lion  Biotechnologies,  Inc.  2014  Equity  Incentive  Plan
(incorporated  herein  by  reference  to  Exhibit  10.8  to  the  Registrant’s  Annual  Report  on  Form  10-K  filed  with  the
Commission on February 25, 2020).#
Iovance Biotherapeutics, Inc. 2018 Equity Incentive Plan, as amended (incorporated herein by reference to Exhibit 10.1 to
the Registrant’s Quarterly Report on Form 10-Q filed with the Commission on November 7, 2023).#
Form  of  Incentive  Stock  Option  Agreement  under  the  Iovance  Biotherapeutics,  Inc.  2018  Equity  Incentive  Plan
(incorporated herein by reference to Exhibit 10.10 of Registrant’s Annual Report on Form 10-K filed with the Commission
on February 25, 2020).#
Form  of  Non-Qualified  Stock  Option  Agreement  under  the  Iovance  Biotherapeutics,  Inc.  2018  Equity  Incentive  Plan
(incorporated herein by reference to Exhibit 10.11 of Registrant’s Annual report on Form 10-K filed with the Commission
on February 25, 2020).#
Form of Stock Unit Notice and Stock Unit Agreement under the Iovance Biotherapeutics, Inc. 2018 Equity Incentive Plan,
as  amended  (June  2021  Retention  Equity  Awards)  (incorporated  herein  by  reference  to  Exhibit  10.2  to  the  Registrant’s
Quarterly Report on Form 10-Q filed with the Commission on August 5, 2021).#
Form of Nonqualified Stock Option Award Agreement under the Iovance Biotherapeutics, Inc. 2018 Equity Incentive Plan,
as  amended  (June  2021  Retention  Equity  Awards)  (incorporated  herein  by  reference  to  Exhibit  10.3  to  the  Registrant’s
Current Report on Form 10-Q filed with the Commission on August 5, 2021).#
Iovance Biotherapeutics, Inc. 2020 Employee Stock Purchase Plan (incorporated herein by reference to Exhibit 10.2 to the
Registrant’s Quarterly Report on Form 10-Q filed with the Commission on November 7, 2023).#
Iovance Biotherapeutics, Inc. Amended and Restated 2021 Inducement Plan (incorporated herein by reference to Exhibit
10.13 to the Registrant’s Annual Report on Form 10-K filed with the Commission on February 24, 2022).#**
Form  of  Stock  Option  Grant  Notice  and  Stock  Option  Agreement  under  the  2021  Inducement  Plan  (incorporated  by
reference  to  Exhibit  10.2  to  the  Registrant’s  Current  Report  on  Form  8-K  filed  with  the  Commission  on  September  23,
2021).#
Form  of  Restricted  Stock  Unit  Grant  Notice  and  Restricted  Stock  Unit  Agreement  under  the  2021  Inducement  Plan
(incorporated by reference to Exhibit 10.3 to the Registrant’s Current Report on Form 8-K filed with the Commission on
September 23, 2021).#
Form  of  Deferred  Stock  Unit  Notice  and  Deferred  Stock  Unit  Agreement  under  the  Iovance  Biotherapeutics,  Inc.  2018
Equity Incentive Plan (incorporated by reference to Exhibit 10.2 to the Registrant’s Quarterly Report on Form 10-Q filed
with the Commission on August 4, 2022).#
Patent  License  Agreement  by  and  between  Genesis  Biopharma,  Inc.  and  the  National  Institutes  of  Health  effective
October 5, 2011 (incorporated herein by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K/A filed
with the Commission on December 13, 2011).*
Cooperative Research and Development Agreement for Intramural-PHS Clinical Research, dated August 5, 2011, by and
between the U.S. Department of Health and Human Services, as represented by the National Cancer Institute, and Genesis
Biopharma,  Inc.  (incorporated  herein  by  reference  to  Exhibit  10.1  to  the  Registrant’s  Current  Report  on  Form  8-K/A
(Amendment No. 2) filed with the Commission on November 29, 2011).
Form  of  Director  Stock  Award  Agreement  (incorporated  herein  by  reference  to  Exhibit  10.2  to  the  Registrant’s  Current
Report on Form 8-K filed with the Commission on July 25, 2013).#
Form  of  Registration  Rights  Agreement  by  and  among  Lion  Biotechnologies,  Inc.  and  the  Investors  thereunder
(incorporated  herein  by  reference  to  Exhibit  10.2  to  the  Registrant’s  Current  Report  on  Form  8-K  filed  with  the
Commission on October 31, 2013).
Cooperative Research and Development Agreement for the Development and Evaluation of the NCI Proprietary Adoptive
Cell  Transfer  Immunotherapy  Using  Tumor  Infiltrating  Lymphocytes  in  Patients  with  Metastatic  Melanoma,  Bladder,
Lung, Triple-negative Breast, and HPV-associated Cancers, Utilizing Lion Biotechnologies, Inc.’s Business Development
Expertise  in  Adoptive  Cell  Transfer  Immunotherapy,  executed  by  Lion  Biotechnologies,  Inc.  on  January  22,  2015
(incorporated  herein  by  reference  to  Exhibit  10.1  to  the  Registrant’s  Current  Report  on  Form  8-K  filed  with  the
Commission on January 27, 2015).*
Patent License Agreement, dated February 9, 2015, by and between Lion Biotechnologies, Inc. and the National Institutes
of Health (incorporated herein by reference to Exhibit 10.47 to the Registrant’s Annual Report on Form 10 K filed with the
Commission on March 16, 2015).*

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10.23

10.24

10.25

10.26

10.27

10.28

10.29

10.30

10.31

10.32

10.33

10.34

10.35

10.36

10.37

10.38

10.39

10.40

Patent License Agreement, dated February 10, 2015, by and between Lion Biotechnologies, Inc. and the National Institutes
of Health (incorporated herein by reference to Exhibit 10.46 to the Registrant’s Annual Report on Form 10-K filed with the
Commission on March 16, 2015).*
First Amendment to Patent License Agreement, effective October 2, 2015, by and between Lion Biotechnologies, Inc. and
the National Institutes of Health (incorporated herein by reference to Exhibit 10.47 to the Registrant’s Quarterly Report on
Form 10-Q filed with the Commission on November 6, 2015).*
Amended  and  Restated  Patent  License  Agreement,  by  and  between  Iovance  Biotherapeutics,  Inc.  and  the  National
Institutes of Health (incorporated herein by reference to Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10 Q
filed with the Commission on August 5, 2021).*
Form of Securities Purchase Agreement, dated June 2, 2016, by and among Lion Biotechnologies, Inc. and the Investors
thereunder (incorporated herein by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed with the
Commission on June 3, 2016).
Form of Registration Rights Agreement, dated June 2, 2016, by and among Lion Biotechnologies, Inc. and the Investors
thereunder (incorporated herein by reference to Exhibit 10.2 to the Registrant’s Current Report on Form 8-K filed with the
Commission on June 3, 2016).
Amendment #2 to the Cooperative Research and Development Agreement #02734, dated August 18, 2016, by and between
the  National  Cancer  Institute  and  Lion  Biotechnologies,  Inc.  (incorporated  herein  by  reference  to  Exhibit  10.3  to
Amendment No. 2 to Registrant’s Registration Statement on Form S 1 filed with the Commission on August 31, 2016).
Manufacturing Services Agreement, dated November 23, 2015, by and between WuXi Advanced Therapies, Inc. and Lion
Biotechnologies, Inc. (incorporated herein by reference to Exhibit 10.36 to the Registrant’s Annual Report on Form 10-K
filed with the Commission on March 9, 2017).*
Strategic Alliance Agreement, effective as of April 17, 2017, between Lion Biotechnologies, Inc. and The University of
Texas M.D. Anderson Cancer Center (incorporated herein by reference to Exhibit 10.1 to the Registrant’s Quarterly Report
on Form 10 Q filed with the Commission on August 3, 2017).*
First Amendment to the Strategic Alliance Agreement by and between Iovance Biotherapeutics, Inc. and The University of
Texas M.D. Anderson Cancer Center, effective as of August 2, 2017 (incorporated herein by reference to Exhibit 10.34 to
the Registrant’s Annual Report on Form 10-K filed with the Commission on March 12, 2018).
Second Amendment to the Strategic Alliance Agreement by and between Iovance Biotherapeutics, Inc. and The University
of Texas M.D. Anderson Cancer Center, effective February 16, 2018 (incorporated herein by reference to Exhibit 10.35 to
the Registrant’s Annual Report on Form 10-K filed with the Commission on March 12, 2018).
Executive Employment Agreement, effective as of June 1, 2016, by and between Maria Fardis and Lion Biotechnologies,
Inc.  (incorporated  herein  by  reference  to  Exhibit  10.3  of  the  Registrant’s  Quarterly  Report  on  Form  10  Q  filed  with  the
Commission on August 9, 2016).*#
Severance  Agreement  and  General  Release,  effective  as  of  July  8,  2020,  between  Iovance  Biotherapeutics,  Inc.  and
Timothy Morris (incorporated herein by reference to Exhibit 10.4 to the Registrant’s Quarterly Report on Form 10-Q filed
with the Commission on August 6, 2020).*#
Executive  Employment  Agreement,  effective  as  of  September  30,  2016,  by  and  between  Frederick  G.  Vogt  and  Lion
Biotechnologies, Inc. (incorporated herein by reference to Exhibit 10.32 to the Registrant’s Annual Report on Form 10 K
filed with the Commission on March 12, 2018).#
Executive  Employment  Agreement  effective  as  of  July  18,  2019,  by  and  between  Friedrich-Reinhard  Graf  Finck  von
Finckenstein, M.D. and Iovance Biotherapeutics, Inc. (incorporated herein by reference to Exhibit 10.1 of the Registrant’s
Quarterly Report on Form 10-Q filed with the Commission on August 1, 2019).
Executive Employment Agreement, effective as of December 14, 2020, by and between Jean-Marc Bellemin and Iovance
Biotherapeutics, Inc. (incorporated herein by reference to Exhibit 10.30 of the Registrant’s Annual Report on Form 10-K
filed with the Commission on February 25, 2021).#+
Executive  Employment  Agreement,  effective  as  of  March  15,  2021,  by  and  between  Igor  Bilinsky,  Ph.D.  and  Iovance
Biotherapeutics, Inc. (incorporated herein by reference to Exhibit 10.4 of the Registrant’s Current Report on Form 10-K
filed with the Commission on May 6, 2021).#+
Office  Lease,  effective  as  of  August  4,  2016,  by  and  between  Lion  Biotechnologies,  Inc.  and  Hudson  Skyway  Landing,
LLC  (incorporated  herein  by  reference  to  Exhibit  10.1  of  the  Registrant’s  Current  Report  on  Form  8  K  filed  with  the
Commission on August 8, 2016).
Office  Lease,  effective  as  of  October  19,  2018,  by  and  between  Iovance  Biotechnologies,  Inc.  and  Hudson  Skyway
Landing, LLC (incorporated herein by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8 K filed with
the Commission on October 25, 2018).

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10.41

10.42

10.43

10.44

10.45

10.46

10.47

10.48

10.49

19.1
21.1
23.1
24.1
31.1
31.2
32.1
32.2
97.1
101

104

First  Amendment  to  the  Office  Lease,  effective  as  of  June  19,  2019,  between  Iovance  Biotherapeutics,  Inc.  and  Hudson
Skyway Landing, LLC (incorporated herein by reference to Exhibit 10.1 of the Registrant’s Quarterly Report on Form 10-
Q filed with the Commission on November 4, 2019).
Second Amendment to the Office Lease, effective as of February 8, 2021, by and between Iovance Biotherapeutics, Inc.
and Hudson Skyway Landing, LLC (incorporated herein by reference to Exhibit 10.2 of the Registrant’s Current Report on
Form 8-K filed with the Commission on February 9, 2021).
First Amendment to the Office Lease, effective as of February 8, 2021, by and between Iovance Biotherapeutics, Inc. and
Hudson  Skyway  Landing,  LLC  (incorporated  herein  by  reference  to  Exhibit  10.3  of  the  Registrant’s  Current  Report  on
Form 8-K filed with the Commission on February 9, 2021).
Lease Agreement, effective as of May 28, 2019, by and between Iovance Biotherapeutics, Inc. and 300 Rouse Boulevard,
LLC  (incorporated  herein  by  reference  to  Exhibit  10.1  of  the  Registrant’s  Current  Report  on  Form  8-K  filed  with  the
Commission on June 3, 2019).
First Amendment to the Lease Agreement, effective as of August 20, 2019, between Iovance Biotherapeutics, Inc. and 300
Rouse Boulevard, LLC (incorporated herein by reference to Exhibit 10.2 of the Registrant’s Quarterly Report on Form 10-
Q filed with the Commission on November 4, 2019).
Second Amendment to the Lease Agreement, effective as of June 30, 2020, between Iovance Biotherapeutics, Inc. and 300
Rouse Boulevard, LLC (incorporated herein by reference to Exhibit 10.3 of the Registrant’s Quarterly Report on Form 10-
Q filed with the Commission on August 6, 2020).
Third Amendment to the Lease Agreement, effective as of November 1, 2021, between Iovance Biotherapeutics, Inc. and
300 Rouse Boulevard, LLC (incorporated herein by reference to Exhibit 10.46 to the Registrant’s Annual Report on Form
10-K filed with the Commission on February 24, 2022).
Lease Agreement, effective as of February 8, 2021, by and between Iovance Biotherapeutics, Inc. and ARE-San Francisco
No. 63, LLC (incorporated herein by reference to Exhibit 10.1 of the Registrant’s Current Report on Form 8-K filed with
the Commission on February 9, 2021).
Option Agreement, dated January 23, 2023, by and among Iovance Biotherapeutics, Inc., Iovance Biotherapeutics UK Ltd,
Clinigen Holdings Limited, Clinigen Healthcare Limited, and Clinigen, Inc. (incorporated herein by reference to Exhibit
10.1 of the Registrant’s Current Report on Form 8-K/A filed with the Commission on January 27, 2023).
Iovance Biotherapeutics, Inc. Insider Trading Policy.**
Subsidiaries of the Company.**
Consent of Independent Registered Public Accounting Firm.**
Power of Attorney (included on the signature page of this Annual Report).
Rule 13a-14(a)/15d-14(a) Certification of Chief Executive Officer.**
Rule 13a-14(a)/15d-14(a) Certification of Chief Financial Officer.**
Section 1350 Certification of Chief Executive Officer (furnished herewith).**
Section 1350 Certification of Chief Financial Officer (furnished herewith).**
Iovance Biotherapeutics, Inc. Dodd-Frank Clawback Policy.**
The following financial information from the Annual Report on Form 10-K of Iovance Biotherapeutics, Inc. for the year
ended December 31, 2023, formatted inline XBRL (eXtensible Business Reporting Language): (1) Balance Sheets as of
December 31, 2023 and 2022 (2) Statements of Operations for the years ended December 31, 2023, 2022, and 2021; (3)
Statements of Stockholders’ Equity for the years ended December 31, 2023, 2022, and 2021; (4) Statements of Cash Flows
for the years ended December 31, 2023, 2022, and 2021; and (5) Notes to Financial Statements.
Cover Page Interactive Data File – the cover page interactive date file does not appear in the Interactive Date File because
its XBRL tags are embedded within the Inline XBRL document.

* Certain portions of the Exhibit have been omitted based upon a request for confidential treatment filed by us with the Commission.

The omitted portions of the Exhibit have been separately filed by us with the Commission.

**   Filed herewith.
#
+     Certain portions of the Exhibit have been redacted pursuant to Item 601(b)(10)(iv) of Regulation S-K.

Indicates a management contract or compensatory plan or arrangement.

Item 16.          Form 10-K Summary

We may voluntarily include a summary of information required by Form 10-K under this Item 16. We have elected not to include

such summary information.

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SIGNATURES

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.

Date: February 28, 2024

By:  /s/ Frederick G. Vogt

IOVANCE BIOTHERAPEUTICS, INC.

Name:  Frederick G. Vogt, Ph.D., J.D.
Title:

Interim Chief Executive Officer and President, and
General Counsel

POWER OF ATTORNEY

Know all persons by these presents, that each person whose signature appears below constitutes and appoints Frederick G. Vogt,
and Jean-Marc Bellemin, and each of them, as his or her true and lawful attorneys-in-fact and agents, with full power of substitution and
resubstitution, for him or her and in his or her name, place, and stead, in any and all capacities, to sign any and all amendments to this
Annual  Report,  and  to  file  the  same,  with  all  exhibits  thereto,  and  other  documents  in  connection  therewith,  with  the  Securities  and
Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform
each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he might
or could do in person, hereby ratifying and confirming that all said attorneys-in-fact and agents, or any of them or their or his or her
substitute or substituted, may lawfully do or cause to be done by virtue thereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons

on behalf of the registrant and in the capacities and on the dates indicated.

Signature

    Title

    Date

/s/ Frederick G. Vogt
Frederick G. Vogt, Ph.D., J.D.

Interim Chief Executive Officer and President, and
General Counsel (Principal Executive Officer)

February 28, 2024

/s/ Jean-Marc Bellemin
Jean-Marc Bellemin

/s/ Merrill A. McPeak
Merrill A. McPeak

/s/ Michael Weiser
Michael Weiser, M.D., Ph.D.

/s/ Ryan D. Maynard
Ryan D. Maynard

/s/ Iain Dukes
Iain Dukes, D.Phil.

/s/ Wayne Rothbaum
Wayne Rothbaum

/s/ Athena Countouriotis
Athena Countouriotis, M.D.
/s/ Wendy L. Yarno
Wendy L. Yarno

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

February 28, 2024

Director

Director

Director

Director

Director

Director

Director

109

February 28, 2024

February 28, 2024

February 28, 2024

February 28, 2024

February 28, 2024

February 28, 2024

February 28, 2024

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

IOVANCE BIOTHERAPEUTICS, INC.
Index to Financial Statements

Contents

Report of Independent Registered Public Accounting Firm (PCAOB ID: 42)

Report of Independent Registered Public Accounting Firm (PCAOB ID: 42)

Consolidated Financial Statements

Consolidated Balance Sheets

Consolidated Statements of Operations

Consolidated Statements of Comprehensive Loss

Consolidated Statements of Stockholders’ Equity

Consolidated Statements of Cash Flows

Notes to Consolidated Financial Statements

Page

F-1

F-4

F-5

F-6

F-7

F-8

F-9

F-10

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Stockholders and the Board of Directors of Iovance Biotherapeutics, Inc.

Opinion on the Financial Statements

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

We  also  have  audited,  in  accordance  with  the  standards  of  the  Public  Company  Accounting  Oversight  Board  (United  States)
(PCAOB),  the  Company’s  internal  control  over  financial  reporting  as  of  December  31,  2023,  based  on  criteria  established  in  Internal
Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework)
and our report dated February 28, 2024 expressed an unqualified opinion thereon.

Basis for Opinion

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

We  conducted  our  audits  in  accordance  with  the  standards  of  the  PCAOB.  Those  standards  require  that  we  plan  and  perform  the
audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or
fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to
error  or  fraud,  and  performing  procedures  that  respond  to  those  risks.  Such  procedures  included  examining,  on  a  test  basis,  evidence
regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and
significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our
audits provide a reasonable basis for our opinion.

Critical Audit Matters

The critical audit matters communicated below 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.  The  communication  of  critical
audit  matters  does  not  alter  in  any  way  our  opinion  on  the  consolidated  financial  statements,  taken  as  a  whole,  and  we  are  not,  by
communicating the critical audit matters below, providing separate opinions on the critical audit matters or on the accounts or disclosures
to which they relate.

F-1

Table of Contents

Accrued clinical development costs

Description of the
Matter

During 2023, the Company incurred $344.1 million of research and development expenses and accrued $10.9
million  of  clinical  development  costs  as  of  December  31,  2023.  As  described  in  Note  2  to  the  Financial
Statements, the Company determines accruals for clinical development costs based on the various clinical trial
activities  performed  pursuant  to  contracts  with  third-party  contract  research  organizations  (“CROs”),  which
comprise  a  significant  component  of  the  Company’s  research  and  development  expenses.  Clinical
development costs are accrued and expensed based on the percentage of work completed in accordance with
agreements  established  with  CROs.  The  timing  and  amount  of  payments  required  under  each  individual
arrangement  are  often  different  from  the  pattern  of  costs  actually  incurred.  The  Company  accrues  clinical
development  costs  under  its  contracts  with  third-party  service  providers  based  on  the  progress  or  stage  of
completion of trials or services completed by vendors over the life of the individual trial, number of subjects
enrolled, and number of sites activated.

Auditing management’s accounting for accrued clinical development costs is especially challenging because
the evaluation is dependent on a high volume of data exchanged between third-party service providers, internal
clinical personnel, and the Company’s finance team. Determining accrued amounts is based on an evaluation
of the unique terms and conditions set in each respective CRO agreement. Additionally, due to the duration of
clinical trial activities and the timing of invoices received from third parties, the determination of the accrual
for  services  incurred  requires  management  to  ensure  they  have  complete  and  accurate  information  from
vendors.

How We Addressed
the Matter in Our
Audit

We evaluated the design and tested the operating effectiveness of the Company’s internal control related to the
Company’s accrued clinical development costs processes.

To test accrued clinical development costs, our audit procedures included, among others, testing the accuracy
and completeness of the inputs used in management’s analysis to determine costs incurred. We also inspected
terms  and  conditions  for  selected  CRO  contracts  and  change  orders  and  compared  these  to  the  cost  models
management used in tracking the progress of service agreements. We met with internal clinical personnel to
understand  the  status  of  significant  clinical  activities.  We  evaluated  services  provided  by  third  parties  by
understanding the terms and timeline of significant projects, evaluated management’s determination of work
performed, subjects enrolled, sites activated and costs incurred, and obtained external confirmation of direct
costs incurred, and contracts and change orders executed by the Company for selected CROs as well as key
terms  and  conditions  of  those  contracts.  Further,  we  inspected  selected  invoices  received  from  third  parties
after the balance sheet date and evaluated whether services performed prior to the balance sheet date had been
properly included in costs accrued.

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Table of Contents

Asset acquisition accounting

Description of the
Matter

As described in Note 4 to the Financial Statements, on May 18, 2023, the Company acquired the worldwide
rights  for  the  manufacturing,  supply,  commercialization  and  sale  of  Proleukin®  (aldesleukin)  (the
“Acquisition”).  The  Company  determined  substantially  all  the  fair  value  of  the  acquired  assets  was
concentrated  in  the  acquired  developed  technology  related  to  the  intellectual  property  rights  of  Proleukin®.
Therefore,  the  Company  concluded  the  Acquisition  did  not  meet  the  definition  of  a  business  in  accordance
with  ASC  805  and  was  accounted  for  as  an  asset  acquisition.  Total  Acquisition  consideration  was  $222.7
million, which was allocated among the liabilities assumed and assets acquired, including $232.7 million of
the acquired developed technology intangible asset.

The prospective financial information used in the fair value of the acquired developed technology intangible
asset was derived using internal management estimates. The Company’s most significant assumptions related
to projected revenues.  

Auditing management’s accounting for the Acquisition was especially challenging because of the judgement
involved in developing the prospective financial information used to estimate the fair value of the Proleukin®
acquired intangible asset, which required the use of subjective inputs.

The considerations included assessing whether substantially all the fair value of the gross assets acquired was
concentrated in a single identifiable asset or group of similar identifiable assets. In particular, the fair value of
the  acquired  developed  technology  intangible  asset.  This  required  a  high  degree  of  auditor  judgement,
subjectivity, and effort, including the use of professionals with specialized skill and knowledge, in performing
procedures  to  assess  the  reasonableness  of  management’s  assumptions  of  projected  revenues  used  in
estimating the fair value of the acquired developed technology intangible asset.  

How We Addressed
the Matter in Our
Audit

We obtained an understanding, evaluated the design, and tested the operating effectiveness of controls over the
Company’s processes for estimating the prospective financial information used in determining the fair value of
the acquired developed technology intangible asset.

Our audit procedures also included, but was not limited to, evaluating the methodology used and significant
assumptions discussed above, and testing the completeness and accuracy of the underlying data used by the
Company. We involved our strategy and valuation specialists to assist in assessing the reasonableness of the
methodologies  used  by  management  and  certain  significant  assumptions  related  to  projected  revenue.
Evaluating  the  reasonableness  of  management’s  assumptions  included,  among  others,  consideration  of  (i)
relevant industry forecasts, (ii) consistency with external market research and industry data, and (iii) inquiries
of individuals outside the finance function who are knowledgeable about the revenue forecast. Our procedures
also included testing the completeness and accuracy of the data underlying these estimates and projections.

/s/ Ernst & Young LLP

We have served as the Company’s auditor since 2021.
San Mateo, California
February 28, 2024

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Table of Contents

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Stockholders and the Board of Directors of Iovance Biotherapeutics, Inc.

Opinion on Internal Control Over Financial Reporting

We have audited Iovance Biotherapeutics, Inc.’s internal control over financial reporting as of December 31, 2023, based on criteria
established  in  Internal  Control—Integrated  Framework  issued  by  the  Committee  of  Sponsoring  Organizations  of  the  Treadway
Commission  (2013  framework)  (the  COSO  criteria).  In  our  opinion,  Iovance  Biotherapeutics,  Inc.  (the  Company)  maintained,  in  all
material respects, effective internal control over financial reporting as of December 31, 2023, based on the COSO criteria.

We  also  have  audited,  in  accordance  with  the  standards  of  the  Public  Company  Accounting  Oversight  Board  (United  States)
(PCAOB), the consolidated balance sheets of the Company as of December 31, 2023 and 2022, the related consolidated statements of
operations, comprehensive loss, stockholders’ equity and cash flows for each of the three years in the period ended December 31, 2023,
and the related notes and our report dated February 28, 2024 expressed an unqualified opinion thereon.

Basis for Opinion

The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment
of the effectiveness of internal control over financial reporting included in the accompanying Management’s Annual Report on Internal
Control Over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting
based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the
Company  in  accordance  with  the  U.S.  federal  securities  laws  and  the  applicable  rules  and  regulations  of  the  Securities  and  Exchange
Commission and the PCAOB.  

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit

to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects.

Our  audit  included  obtaining  an  understanding  of  internal  control  over  financial  reporting,  assessing  the  risk  that  a  material
weakness  exists,  testing  and  evaluating  the  design  and  operating  effectiveness  of  internal  control  based  on  the  assessed  risk,  and
performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis
for our opinion.

Definition and Limitations of Internal Control Over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability
of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting
principles.  A  company’s  internal  control  over  financial  reporting  includes  those  policies  and  procedures  that  (1)  pertain  to  the
maintenance  of  records  that,  in  reasonable  detail,  accurately  and  fairly  reflect  the  transactions  and  dispositions  of  the  assets  of  the
company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in
accordance  with  generally  accepted  accounting  principles,  and  that  receipts  and  expenditures  of  the  company  are  being  made  only  in
accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention
or  timely  detection  of  unauthorized  acquisition,  use,  or  disposition  of  the  company’s  assets  that  could  have  a  material  effect  on  the
financial statements.

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

/s/ Ernst & Young LLP

San Mateo, California
February 28, 2024

F-4

    
Table of Contents

IOVANCE BIOTHERAPEUTICS, INC.
Consolidated Balance Sheets
(In thousands, except share and per share information)

ASSETS

Current Assets

Cash and cash equivalents
Trade accounts receivable
Short-term investments
Inventory
Prepaid expenses and other assets
Total Current Assets

Property and equipment, net
Intangible assets, net
Operating lease right-of-use assets
Restricted cash
Long-term assets
Total Assets

LIABILITIES AND STOCKHOLDERS’ EQUITY

Current Liabilities
Accounts payable
Accrued expenses
Operating lease liabilities
Total Current Liabilities

Non-Current Liabilities

Operating lease liabilities – non-current
Deferred tax liabilities
Long-term note payable
Total Non-Current Liabilities
Total Liabilities

Commitments and contingencies

Stockholders’ Equity

Series A Convertible Preferred stock, $0.001 par value; 17,000 shares designated, 194 shares issued and
outstanding as of December 31, 2023 and December 31, 2022
Series B Convertible Preferred stock, $0.001 par value; 11,500,000 shares designated, 2,842,158 shares
issued and outstanding as of December 31, 2023 and December 31, 2022
Common stock, $0.000041666 par value; 500,000,000, and 300,000,000 shares authorized, 256,135,715
and 187,812,072 shares issued and outstanding as of December 31, 2023 and December 31, 2022,
respectively
Accumulated other comprehensive income (loss)
Additional paid-in capital
Accumulated deficit
Total Stockholders’ Equity
Total Liabilities and Stockholders’ Equity

     December 31, 

2023

December 31, 
2022

$

$

$

$

$

$

$

114,888
151
164,979
10,372
17,458
307,848

114,030
229,258
62,515
66,430
270
780,351

33,123
69,406
7,777
110,306

67,085
17,347
1,000
85,432
195,738

231,731
—
240,114
—
7,271
479,116

105,232
—
73,015
6,430
189
663,982

26,603
52,295
12,587
91,485

71,859
—
1,000
72,859
164,344

—  

3

—

3

11
2,526
2,594,448
(2,012,375)
584,613
780,351

$

8
(902)
2,068,867
(1,568,338)
499,638
663,982

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

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Table of Contents

Revenue

Product revenue
Total revenue

Costs and expenses

Cost of sales
Research and development
Selling, general and administrative

Total costs and expenses

Loss from operations
Other income

Interest income, net

Net Loss before income taxes

Income tax benefit

IOVANCE BIOTHERAPEUTICS, INC.
Consolidated Statements of Operations
(In thousands, except per share information)

2023

Years Ended December 31, 
2022

2021

$

$

1,189
1,189

10,755
344,077
106,916
461,748

— $
—

—
—

— $

294,781
104,097
398,878

—
259,039
83,664
342,703

(460,559)

(398,878)

(342,703)

13,043
(447,516)
3,479
(444,037)
(1.89)
235,131

$

$
$

2,985
(395,893)
—
(395,893)
(2.49)
159,259

$

$
$

451
(342,252)
—
(342,252)
(2.23)
153,406

$

$

$

$
$

Net Loss
Net Loss Per Share of Common Stock, Basic and Diluted
Weighted Average Shares of Common Stock Outstanding, Basic and Diluted

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

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Table of Contents

IOVANCE BIOTHERAPEUTICS, INC.
Consolidated Statements of Comprehensive Loss
(in thousands)

Net Loss
Other comprehensive loss:

Unrealized gain/(loss) on investments
Foreign currency translation adjustment

Comprehensive Loss

$

$

2023
(444,037)

Years Ended December 31, 
2022
(395,893)

$

$

940
2,488
(440,609)

(301)

—  
$

(396,194)

$

2021
(342,252)

(620)
—
(342,872)

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

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Table of Contents

Balance - January 1, 2021
Stock-based compensation expense
Common stock issued upon purchase through
employee stock purchase plan
Common stock issued upon exercise of stock
options
Common stock sold in public offering, net of
offering costs
Common stock issued from preferred stock
conversion
Unrealized loss on investments
Net loss
Balance - December 31, 2021
Stock-based compensation expense
Common stock issued upon purchase through
employee stock purchase plan
Vesting of restricted shares issued for services
Tax payments related to shares retired for
vested restricted stock units
Common stock issued upon exercise of stock
options
Unrealized loss on investments
Common stock sold in public offering, net of
offering costs
Net loss
Balance - December 31, 2022
Stock-based compensation expense
Common stock issued upon purchase through
employee stock purchase plan
Vesting of restricted shares issued for services
Tax payments related to shares retired for
vested restricted stock units
Common stock sold in public and/or at the
market offerings, net of offering costs
Common stock issued upon exercise of stock
options
Unrealized gain on investments
Foreign currency cumulative translation
adjustments
Net loss
Balance - December 31, 2023

IOVANCE BIOTHERAPEUTICS, INC.
Consolidated Statements of Stockholders' Equity
(In thousands, except share information)

Series A 
Convertible
Preferred Sock

Series B
Convertible
Preferred Stock

    Shares    Amount     Shares
$ —  

Additional Accumulated other

    Amount    

$

4  

—

—

Paid-In
    Amount     Capital

Common Stock
Shares
146,874,917
—

$

6

$ 1,486,662
69,765

—  

$

94,148

—

1,586

—  

2,822,617

  —  

33,526

3,581,119
—

—

—

—

(738,961)
—
—
2,842,158
—

—
—

—

—
—

—
—
2,842,158
—

—
—

—

—

—
—

194
—

—

—

—

—
—
—
194
—

—
—

—

—
—

—
—
194
—

—
—

—

—

—
—

—
194

—

—

—

—

—
—
—

$ —  

—

—
—

—

—
—

—
—

$ —  

—

—
—

—

—

—
—

—

$ —  

$

$

—

(1)
—
—

3  

—

—
—  

—

—
—

—
—

3  

—

—
—  

—

—

—  
—

Comprehensive
Income

19
—

—

—

—

—
(620)

Accumulated
Deficit
(830,193)

$

Total
Stockholders’
Equity

$
—  

656,498
69,765

—  

1,586

—  

33,526

—  

203,155

—  

—  
—
(342,252)
$ (1,172,445)

$
—  

1
(620)
(342,252)
621,659
84,022

6,474,099

738,961
—
—
157,004,742
—

—

1
—
—
7

$

203,155

1

—  
—
$ 1,794,695
84,022

$

—  

262,701
894,760

—
  —  

1,655
—

(2,649)

1,642

—  

(342,703)

203,579
—

29,788,993
—
187,812,072
—

$

—

—
—

1
—
8

(601)
—

—
—

—

—
(301)

435,459
1,253,465

—
  —  

2,410
—

(454,367)

—  

(2,795)

67,080,226

3

463,278

8,860
—

  —  
—

63
—  

—
—

—

—

—
940

2,488

—  
—  

1,655
—

—  

(2,649)

—  
—

1,642
(301)

—
—  

2,410
—

—  

(2,795)

—

463,281

—  
—  

63
940

189,501
—
$ 2,068,867
62,625

$

—  
—
(902)
—

—
(395,893)
$ (1,568,338)

$
—  

189,502
(395,893)
499,638
62,625

—  

—
2,842,158

$

—
3  

—
256,135,715

$

—
11

—
$ 2,594,448

$

—  

2,526

—
(444,037)
$ (2,012,375)

2,488
(444,037)
584,613

$

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

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IOVANCE BIOTHERAPEUTICS, INC.
Consolidated Statements of Cash Flows
(In thousands)

Cash Flows from Operating Activities
Net loss
Adjustments to reconcile net loss to net cash used in operating activities:

Years Ended December 31, 

2023

2022

2021

$

(444,037)

$

(395,893)

$

(342,252)

Stock-based compensation expense
Unrealized exchange gains
Amortization of intangible assets
Amortization of right of use asset
Depreciation and amortization of property and equipment
Deferred tax benefit
Accretion of discounts and premiums on investments
Loss on write-off of fixed assets
Changes in assets and liabilities:

Prepaid expenses, other assets and long-term assets
Trade accounts receivable
Inventory
Operating lease liabilities
Accounts payable
Accrued expenses and other liabilities

Net cash used in operating activities

Cash Flows from Investing Activities

Maturities of investments
Purchase of investments
Cash paid for acquisition, net of cash acquired
Purchase of property and equipment

Net cash provided by / (used in) investing activities

62,625
70
9,849
11,710
11,568
(3,479)
(3,605)
—

(10,062)
(149)
(10,118)
(10,794)
4,828
19,774
(361,820)

285,583
(205,902)
(212,633)
(22,290)
(155,242)

84,022
—
—
11,825
9,310
—
474
397

(2,130)
—
—
(1,942)
5,883
(4,703)
(292,757) 

522,696
(245,816)
—
(20,425)
256,455  

69,765
—
—
10,869
3,111
—
6,013
—

2,775
—
—
(5,882)
6,976
20,684
(227,941)

762,914
(725,208)
—
(37,574)
132

Cash Flows from Financing Activities

Tax payments related to shares withheld for vested restricted stock units
Proceeds from the issuance of common stock under employee stock purchase
plan
Proceeds from the issuance of common stock upon exercise of options
Proceeds from the issuance of common stock, net
Proceeds from the issuance of debt

Net cash provided by financing activities
   Effect of exchange rate changes
Net increase in cash, cash equivalents and restricted cash
Cash, Cash Equivalents and Restricted Cash Beginning of Period
Cash, Cash Equivalents and Restricted Cash End of Period

Supplemental disclosure of non-cash investing and financing activities:

Fair value of net assets acquired
Net unrealized gain (loss) on investments
Acquisition of property and equipment included in accounts payable and
accrued expenses
Conversion of convertible preferred stock to common stock
Lease liabilities arising from obtaining right-of-use asset from new leases
Lease liabilities arising from obtaining right-of-use asset from lease
modifications

$

$

(2,795)

(2,649)

—

2,410
63
463,281
—
462,959
(2,740)
(56,843)
238,161
181,318

222,637
940

4,062
—
177

1,033

$

$

1,655
1,642
189,502
—
190,150

153,848  
84,313  
238,161  

$

—
(301)

5,985
—
553

15,304

1,586
33,526
203,156
1,000
239,268

11,459
72,854
84,313

—
(620)

12,410
1
17,275

7,800

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

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Table of Contents

IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

NOTE 1. GENERAL ORGANIZATION, BUSINESS AND LIQUIDITY

General Organization and Business

Iovance Biotherapeutics, Inc. (the “Company”) is a commercial-stage biopharmaceutical company pioneering a transformational
approach  to  treating  cancer  by  harnessing  the  human  immune  system’s  ability  to  recognize  and  destroy  diverse  cancer  cells  using
therapies personalized for each patient. The Company’s mission is to be the global leader in innovating, developing and delivering tumor
infiltrating  lymphocyte  (“TIL”)  cell  therapies  for  patients  with  solid  tumor  cancers.  With  the  recent  approval  of  the  biologics  license
application (the “BLA”), the Company is executing the U.S. launch of Amtagvi™ (lifileucel), the first product within its autologous TIL
cell  therapy  platform,  and  Proleukin®  (aldesleukin),  an  interleukin-2  (“IL-2”)  product  used  in  the  Amtagvi™  treatment  regimen.
Amtagvi™  is  a  tumor-derived  autologous  T  cell  immunotherapy  indicated  for  the  treatment  of  adult  patients  with  unresectable  or
metastatic melanoma previously treated with a PD-1 blocking antibody, and if BRAF V600 mutation positive, a BRAF inhibitor with or
without  a  MEK  inhibitor.  This  indication  is  approved  under  accelerated  approval  based  on  overall  response  rate  (“ORR”).  Continued
approval  for  this  indication  may  be  contingent  upon  verification  and  description  of  clinical  benefit  in  future  confirmatory  trials.
 Amtagvi™ is the first and the only one-time, individualized T cell therapy to receive FDA approval for a solid tumor cancer. Amtagvi™
and Proleukin® are part of a treatment regimen that includes lymphodepletion.

The  Company  was  founded  to  build  upon  the  promise  of  TIL  cell  therapy  that  was  previously  demonstrated  in  single-center
clinical  trials  at  academic  centers,  including  the  National  Cancer  Institute  (“NCI”).  The  Company’s  multi-center  trials,  novel  TIL
products, manufacturing processes, facilities, and bioanalytical platforms have transformed TIL cell therapy into a commercially viable
treatment which many more patients with cancer can access.

The Company manufactures Amtagvi™ and its investigational TIL cell therapies using a centralized, scalable and proprietary 22-
day  manufacturing  process  which  rejuvenates  and  multiplies  polyclonal  T  cells  unique  to  each  patient  into  the  billions  and  yields  a
cryopreserved, individualized therapy.

The  Company’s  development  pipeline  includes  multicenter  trials  of  TIL  cell  therapies  in  additional  treatment  settings  for  solid
tumor cancers. The Company is investigating TIL monotherapies for patients with later stage disease who were previously treated with
standard  of  care  therapies  and  TIL  combinations  with  standard  of  care  therapies  to  potentially  improve  outcomes  in  patients  who  are
earlier in their disease. These trials two ongoing registrational trials to support a supplementary BLA (“sBLA”), of its TIL cell therapies
in  frontline  advanced  melanoma  and  in  advanced  non-small  cell  lung  cancer  following  standard  of  care  chemo-immunotherapy.  The
Company is also developing next generation therapies using TIL, such as genetically modified TIL cell therapy.

Liquidity

The Company is currently engaged in the development of therapeutics to fight cancer, specifically solid tumors. With the recent
approval  of  the  BLA,  the  Company  expects  to  generate  revenue  from  the  sale  of  its  product  Amtagvi™.  Furthermore,  following  the
acquisition of the worldwide rights to Proleukin® (as discussed below in Note 4 - Proleukin® Acquisition) in the second quarter of 2023,
the Company began to generate revenue from the sales of Proleukin® during the year ended December 31, 2023. However, such revenues
for Amtagvi™ and Proleukin® may not be material during the 12 months from the date the consolidated financial statements are issued
and this Annual Report on Form 10-K is filed. The Company has incurred a net loss of $444.0 million for the year ended December 31,
2023 and used $361.8 million of cash in its operating activities during the year ended December 31, 2023. As of December 31, 2023, the
Company had $346.3 million in cash, cash equivalents, investments, and restricted cash ($114.9 million of cash and cash equivalents,
$165.0 million in short-term investments and $66.4 million in restricted cash).

The Company expects to continue to incur significant expenses to support its execution of the commercial launch of Amtagvi™,
fund ongoing clinical programs, including its NSCLC registration study, IOV-LUN-202, and its frontline advanced melanoma Phase 3
confirmatory trial, TILVANCE-301, continue the development of its pipeline candidates, and for other general corporate purposes. Based
on the funds the Company has available as of the date these consolidated financial statements are issued, which include estimated net
proceeds  (after  deducting  underwriting  and  other  offering  expenses)  of  approximately  $197.1  million  from  the  public  offering  of  its
common  stock  completed  on  February  22,  2024,  the  Company  believes  that  it  has  sufficient  capital  to  fund  its  anticipated  operating
expenses and capital expenditures as planned for at least the next twelve months from the date these consolidated financial statements are
issued.

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Concentrations of Risk

IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The  Company  is  subject  to  credit  risk  from  its  portfolio  of  cash,  cash  equivalents,  trade  accounts  receivable  and  investments.
Under its investment policy, the Company limits amounts invested in securities by credit rating, maturity, industry group, investment type
and  issuer,  except  for  securities  issued  by  the  U.S.  government.  The  Company  does  not  believe  it  is  exposed  to  any  significant
concentrations of credit risk from these financial instruments. The goals of its investment policy are safety and preservation of principal,
diversification of risk, and liquidity of investments sufficient to meet cash flow requirements.

NOTE 2. SUMMARY OF SIGNIFICANT ACCOUNTING PRACTICES

Cash, Cash Equivalents, and Investments

The Company’s cash and cash equivalents include short-term investments with original maturities of three months or less when
purchased. The Company's investments are classified as “available-for-sale.” The Company includes these investments in current assets
or non-current assets in the Consolidated Balance Sheets based on the length of maturity from the reporting date and carries them at fair
value.  Unrealized  gains  and  losses  on  available-for-sale  securities  are  recorded  in  accumulated  other  comprehensive  loss.  Impairment
losses related to credit losses (if any) are recorded as an allowance for credit losses with an offsetting entry to Interest income, net. No
impairment  losses  related  to  credit  losses  were  recognized  for  the  years  ended  December  31,  2023,  2022  and  2021.  The  cost  of  debt
securities  is  adjusted  for  the  amortization  of  premiums  and  accretion  of  discounts  to  maturity.  Such  amortization  and  accretion  are
included in Interest income, net in the consolidated statements of operations. Gains and losses on securities sold are recorded based on
the specific identification method and are included in Interest income, net in the consolidated statements of operations. The Company has
not incurred any realized gains or losses from sales of securities to date. The Company’s investment policy limits investments to certain
types  of  instruments  such  as  certificates  of  deposit,  money  market  instruments,  obligations  issued  by  the  U.S.  government  and  U.S.
government agencies as well as corporate debt securities and commercial paper, and places restrictions on maturities and concentration
by type and issuer, except for securities issued by the U.S. government.

Restricted Cash

The  Company  maintains  a  required  minimum  balance  in  a  segregated  bank  account  in  connection  with  its  letters  of  credit  for
which amounts are restricted as to their use by the Company. Currently, the Company’s letters of credit are primarily comprised of one
for the benefit of the landlord for the Iovance Cell Therapy Center (the “iCTC”) used as a security deposit for the lease in the amount
$5.45  million  (See  Note  14  -  Leases)  and  a  letter  of  credit  for  $0.6  million  for  the  benefit  of  the  landlord  for  the  Company’s  current
headquarters’ lease (See Note 14 - Leases), as well as a letter of credit for $60.0 million, for the future milestone payment as required by
the terms of the Option Agreement for the Proleukin® acquisition (See Note 4 – Proleukin® Acquisition). This letter of credit expires on
May 5, 2024, however, it will be automatically extended, without written agreement, for one-year periods to May in each succeeding
calendar year and the final expiration date will be July 20, 2026. Furthermore, the letter of credit will not be automatically extended if a
thirty-day written notice is provided prior to the annual extension. The letter of credit for $5.45 million originally expired on May 28,
2020,  however,  it  automatically  extends  for  additional  one-year  periods,  without  written  agreement,  to  May  28  in  each  succeeding
calendar year, through at least 60 days after the lease expiration date. Further, on the expiration of the seventh year of the lease, and each
anniversary  date  thereafter,  the  letter  of  credit  may  be  decreased  by  $1.0  million  with  a  minimum  security  deposit  of  $1.5  million
maintained through the end of the lease term. The letter of credit with the landlord for the Company’s current headquarters’ lease expires
on February 1, 2032, however, it will be automatically extended, without written agreement, for one-year periods to February in each
succeeding  calendar  year.  As  of  December  31,  2023  and  December  31,  2022,  Restricted  cash  totaled  $66.4  million  and  $6.4  million,
respectively. This amount has been classified as a non-current asset in the Company’s consolidated balance sheets.

The  following  table  provides  a  reconciliation  of  cash,  cash  equivalents  and  restricted  cash  reported  within  the  consolidated

balance sheets that sum to the total of the same such amounts shown in the consolidated statements of cash flows (in thousands):

Cash and cash equivalents
Restricted cash

Total cash, cash equivalents and restricted cash

2023
114,888
66,430
181,318

$

$

December 31, 
2022
231,731
6,430
238,161

$

$

2021

78,229
6,084
84,313

$

$

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Asset Acquisitions

IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The  Company  evaluates  acquisitions  of  assets  using  the  guidance  in  Accounting  Standard  Codification  (“ASC”)  Topic  805,
Business Combinations (“ASC 805”), to determine whether the transaction should be accounted for as a business combination or asset
acquisition by first applying a screen test to assess if substantially all of the fair value of the gross assets acquired is concentrated in a
single identifiable asset or group of assets. If the screen test is met, the transaction is accounted for as an asset acquisition. If the screen
test is not met, further assessment is required to determine whether the Company has acquired inputs and processes that have the ability
to create outputs, which would meet the requirements of a business.

If the assets acquired do not constitute a business, the Company accounts for asset acquisitions using the cost accumulation and
allocation  method.  Under  this  method,  the  cost  of  the  acquisition,  including  direct  acquisition-related  costs,  is  allocated  to  the  assets
acquired  on  a  relative  fair  value  basis.  Goodwill  is  not  recognized  in  an  asset  acquisition  and  any  difference  between  consideration
transferred and the fair value of the net assets acquired is allocated to the identifiable assets acquired based on their relative fair values.

Deferred tax liabilities arising from basis differences in assets acquired are calculated using the simultaneous equations method
under ASC Topic 740, Income Taxes (“ASC 740”), and based on the effective tax rate. The resulting deferred tax liability is recorded in
the consolidated balance sheet as of December 31, 2023.

Contingent consideration in the scope of ASC Topic 815, Derivatives and Hedging (“ASC 815”), is included in the cost of the
asset acquisition at its acquisition date fair value. Contingent consideration in the scope of ASC Topic 450, Contingencies (“ASC 450”),
is recognized when it is both probable and reasonably estimable.  

Inventory and Cost of Sales

Inventory  is  stated  at  the  lower  of  cost  or  net  realizable  value  on  a  first-in,  first-out  basis.  Cost  includes  amounts  related  to
materials,  labor  and  overhead.  Net  realizable  value  is  the  estimated  selling  price  in  the  ordinary  course  of  business  less  reasonably
predictable costs of completion, disposal and transportation. Inventories presented in the consolidated balance sheet as of December 31,
2023 pertain solely to Proleukin® and include a step-up of the fair value of inventories as a result of the acquisition of the worldwide
rights  to  Proleukin®.  Inventoriable  costs  incurred  such  as  manufacturing  costs  for  the  Company’s  product  candidates,  including
Amtagvi™, are expensed as incurred as research and development expenses prior to regulatory approval. When regulatory approval of a
product is obtained and the approved product is commercially launched, the Company will begin capitalizing manufacturing costs related
to the approved product into inventory.

Cost of sales includes the cost of Proleukin® inventories and other costs that are directly associated with the purchase and sales of
Proleukin®.  In  addition,  amortization  expense  for  the  fair  value  step  up  of  Proleukin®  inventories  and  the  acquired  intangible  assets
related to the developed technology are included in cost of sales in the Company’s consolidated statement of operations.

Trade Accounts Receivable

Trade  accounts  receivable  are  recorded  net  of  allowances  for  product  returns  and  estimated  credit  losses.  The  estimate  of
allowance for credit losses considers factors, including existing contractual payment and the aging of receivable from its customers. To
date, the Company has determined that an allowance for doubtful accounts is not required.  

Intangible Assets

The Company’s intangible assets are initially measured based on an allocation of the cost of the acquisition to the assets acquired
on  a  relative  fair  value  basis  and  are  recorded  net  of  accumulated  amortization.  The  Company  amortizes  the  intangible  assets  on  a
straight-line basis over their estimated useful lives.

When  contingent  consideration  is  a  component  of  the  cost  of  an  asset  acquisition,  the  Company  capitalizes  the  amount  of
incremental cost from the contingent consideration related to the intangible asset acquired in the period the underlying contingency is
resolved. When this occurs, the Company will recognize amortization expense on the incremental cost prospectively from the date the
incremental costs are capitalized.  

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IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The Company reviews intangible assets for impairment at least annually and whenever events or changes in circumstances have
occurred  which  could  indicate  that  the  carrying  value  of  the  assets  are  not  recoverable.  If  such  indicators  are  present,  the  Company
assesses the recoverability of affected assets by determining if the carrying value of the assets is less than the sum of the undiscounted
future  cash  flows  of  the  assets.  If  the  assets  are  found  to  not  be  recoverable,  the  Company  measures  the  amount  of  impairment  by
comparing the carrying value of the assets to their fair values. The Company determined that no indicators of impairment existed as of
December 31, 2023.

Leases

The Company determines if an arrangement includes a lease at inception and thereafter, if modified. Operating leases are included
in its consolidated balance sheets as Operating lease right-of-use assets and Operating lease liabilities as of December 31, 2023 and 2022.
Operating  lease  right-of-use  assets  represent  the  Company’s  right  to  use  an  underlying  asset  for  the  lease  term  and  operating  lease
liabilities  represent  the  Company’s  obligation  to  make  lease  payments  arising  from  the  lease.  Operating  lease  right-of-use  assets  and
liabilities are recognized at the lease commencement date or modification date based on the present value of lease payments over the
lease term. In determining the net present value of lease payments, the Company uses an estimated incremental borrowing rate that is
applicable to the Company based on the information available at the later of the lease commencement or modification date.

The operating lease right-of-use assets also include any lease payments made less lease incentives. The Company’s leases may
include options to extend or terminate the lease, which is considered in the lease term when it is reasonably certain that the Company will
exercise any such options. Lease expense is recognized on a straight-line basis over the expected lease term and recorded in costs and
expenses in the consolidated statements of operations. The Company has elected not to apply the recognition requirements of Accounting
Standards Update (“ASU”) No. 2016-02 and No. 2018-10 (together “Topic 842”) for short-term leases.

For lease agreements entered into by the Company that include lease and non-lease components, such components are generally

accounted for separately.

Property and Equipment, net

Property and equipment are stated at cost, net of accumulated depreciation and amortization. The cost of property and equipment
is  depreciated  or  amortized  on  the  straight-line  method  over  the  following  estimated  useful  lives.  The  depreciation  or  amortization  of
capitalized construction in progress costs, a component of property and equipment, net, begins once the underlying asset is placed into
service and is recognized over the estimated useful lives:

Computer equipment
Computer software
Office furniture and equipment
Lab, process, and validation equipment
Machinery and equipment
Utility equipment
Leasehold improvements

     2 years
5 years
5 years
5 years
5 – 7 years
Lesser of the remaining economic life of the asset or the lease-term
Lesser of the remaining economic life of the asset or the lease-term

Expenditures for maintenance and repairs are charged to operations as incurred while renewals and betterments are capitalized.

Gains and losses on disposals are included within operating expenses in the consolidated statements of operations.

Management assesses the carrying value of property and equipment whenever events or changes in circumstances indicate that the
carrying value may not be recoverable. If there is an indication of impairment, management prepares an estimate of future undiscounted
cash flows expected to result from the use of the asset and its eventual disposition. If these cash flows are less than the carrying amount
of the asset, an impairment loss is recognized to write down the asset to its estimated fair value. For the years ended December 31, 2023,
2022, and 2021, the Company did not recognize any impairments for its property and equipment.

Fair Value Measurements

Under ASC Topic 820, Fair Value Measurements and Disclosures (“ASC 820”), fair value is defined as the price at which an asset

could be exchanged, or a liability transferred in a transaction between knowledgeable, willing parties in the principal or most

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IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

advantageous market for the asset or liability. Where available, fair value is based on observable market prices or parameters or derived
from such prices or parameters. Where observable prices or parameters are not available, valuation models are applied.

Assets  and  liabilities  recorded  at  fair  value  in  the  Company’s  financial  statements  are  categorized  based  upon  the  level  of
judgment associated with the inputs used to measure their fair value. Hierarchical levels directly related to the amount of subjectivity
associated with the inputs to fair valuation of these assets and liabilities, are as follows:

- Level 1—These are investments where values are based on unadjusted quoted prices for identical assets in an active market that

the Company has the ability to access.

- Level 2—These are investments where values are based on quoted market prices in markets that are not active or model derived

valuations in which all significant inputs are observable in active markets.

- Level 3—These are financial instruments where values are derived from techniques in which one or more significant inputs are

unobservable.

The Company’s financial instruments consist of cash, cash equivalents, short-term investments, and long-term notes payable, all

of which are reported at their respective fair value or approximate fair value on its consolidated balance sheets.

A financial instrument’s categorization within the valuation hierarchy is based upon the lowest level of input that is significant to

the fair value measurement. Where quoted prices are available in an active market, securities are classified as Level 1.

When quoted market prices are not available for a specific security, the Company estimates the fair value by using quoted prices
for identical or similar instruments in markets that are not active and model-based valuation techniques for which all significant inputs
are  observable  in  the  market  or  can  be  corroborated  by  observable  market  data  for  substantially  the  full  term  of  the  assets.  Where
applicable,  these  models  project  future  cash  flows  and  discount  the  future  amounts  to  a  present  value  using  market-based  observable
inputs  obtained  from  various  third-party  data  providers,  including  but  not  limited  to,  benchmark  yields,  interest  rate  curves,  reported
trades, broker/dealer quotes, and market reference data. Level 2 assets consist of commercial paper, corporate securities and government
agency securities. Level 2 inputs for the valuations are limited to quoted prices for similar assets or liabilities in active markets and inputs
other than quoted prices that are observable for the asset.

Revenue Recognition

The  Company  recognizes  revenue  from  product  sales  in  accordance  with  ASC  Topic  606,  Revenue  from  Contracts  with
Customers (“ASC 606”). Under ASC 606, revenue is recognized when a customer obtains control of promised goods or services in an
amount  that  reflects  the  consideration  which  the  entity  expects  to  receive  in  exchange  for  those  goods  or  services.  To  the  extent  the
transaction price includes variable consideration, the Company estimates the amount of variable consideration that should be included in
the transaction price using the most likely method based on historical experience as well as applicable information currently available.

Indirect taxes collected from customers and remitted to government authorities that are related to sales of the Company’s products,

primarily in Europe, are excluded from revenues.

Subsequent  to  the  closing  of  the  acquisition  of  Proleukin®  in  May  2023,  the  Company  began  to  sell  Proleukin®  in  licensed
markets outside of the U.S. To date, there have been no product sales from Proleukin® in the U.S. market. Revenue recognized for the
year ended December 31, 2023 was not material to the Company’s consolidated financial statements.

Stock-Based Compensation

The  Company  periodically  grants  stock  options  to  employees  and  non-employees  as  compensation  for  services  rendered.  The
Company  accounts  for  all  stock-based  payment  awards  made  to  employees,  including  the  employee  stock  purchase  plans,  and  non-
employees  in  accordance  with  the  authoritative  guidance  provided  by  the  Financial  Accounting  Standards  Board  (“FASB”)  where  the
value of the award is measured on the date of grant and recognized over the vesting period. Forfeitures are recognized in the period in
which  they  occur.  The  Company  accounts  for  stock  option  grants  to  non-employees  in  a  similar  manner  as  stock  option  grants  to
employees except for the term used in the grant date fair value, therefore no longer requiring a re-measurement at the then-current fair

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IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

values at each reporting date until the shares underlying the options have vested. The non-employee awards that contain a performance
condition that affects the quantity or other terms of the award are measured based on the outcome that is probable.

The fair value of the Company's common stock option grants is estimated using a Black-Scholes option pricing model, which uses
certain  assumptions  related  to  risk-free  interest  rates,  expected  volatility,  expected  term  of  the  common  stock  options,  and  future
dividends.  The  stock-based  compensation  expense  is  recorded  based  upon  the  value  derived  from  the  Black-Scholes  option  pricing
model. The assumptions used in the Black-Scholes option pricing model could affect compensation expense recorded in future periods.

The  Company  issues  restricted  stock  units  (“RSUs”)  from  time  to  time  as  part  of  its  equity  incentive  plans.  The  Company
measures the compensation cost with respect to RSUs issued to employees based upon the estimated fair value of the equity instruments
at the date of the grant, which is recognized as an expense over the period during which an employee is required to provide services in
exchange for the awards. The fair value of RSUs is based on the closing price of the Company’s common stock on the grant date. In
addition  to  RSUs  that  have  time-based  vesting  requirements,  from  time  to  time  the  Company  may  issue  RSUs  that  include  certain
performance vesting criteria based upon the satisfaction of stated objectives (“PRSUs”). The Company measures the compensation cost
with respect to PRSUs issued to employees based upon the estimated fair value of the equity instruments at the date of grant, which is
recognized as an expense over the period that achievement is determined to be probable through the stated service period associated with
the award.

Accrued Research and Development Costs

Research  and  development  costs  are  expensed  as  incurred.  Clinical  development  costs  compose  a  significant  component  of
research and development costs. The Company has a history of contracting with third parties, including contract research organizations
(“CROs”),  independent  clinical  investigators,  and  contract  manufacturing  organizations  (“CMOs”)  that  perform  various  clinical  trial
activities  on  the  Company’s  behalf  in  connection  with  the  ongoing  development  of  the  Company’s  product  candidates.  The  financial
terms of these contracts are subject to negotiations and may vary from contract to contract and may result in uneven payment flow. The
Company accrues and expenses costs for clinical trial activities performed by third parties based upon the work completed to date for
each  clinical  trial  in  accordance  with  agreements  established  with  CROs,  hospitals,  and  clinical  investigators.  Accruals  for  CROs  and
CMOs are recorded based on services received and efforts expended pursuant to agreements established with CROs, CMOs and other
outside service providers. The Company determines its costs through discussions with internal clinical stakeholders and outside service
providers as to the progress or stage of completion of clinical trials or services and the contracted fee to be paid for such services.

Included  in  the  Company’s  clinical  development  costs  are  investigator  costs,  which  are  costs  associated  with  treatments
administered at clinical sites as required under each clinical trial protocol. The Company’s determination of clinical investigator costs
and related timing of expense recognition will depend on a number of factors that include, but are not limited to, (i) the overall number of
patients  that  enroll  in  the  trial  at  each  individual  site,  (ii)  the  length  of  clinical  trial  enrollment  period,  (iii)  discontinuation  and
completion rates of patients, (iv) duration of patient safety follow-ups, (v) the number of sites included in the clinical trial, and (vi) the
contracted fee of each participating site for patient treatment while on clinical trial, which can vary greatly for several reasons including,
but not limited to, geographic region, medical center or physician costs, and overhead costs. In addition, the Company’s estimates for per
patient trial costs will vary based on a number of factors that include, but are not limited to, the extent of additional procedures that may
be administered by investigators as a result of patient health status, recoverability of patient costs through insurance carriers of patients,
and unanticipated cost of injuries incurred as a result of the clinical trial treatment. The Company accrues estimated expenses resulting
from obligations under investigator site agreements as the timing of payments does not always timely align with the periods over which
the treatments are administered by the clinical investigators. These estimates are typically based on contracted amounts, patient visit data,
discussions with internal clinical stakeholders and outside service providers, and historical look-back analysis of actual payments made
to date.

The Company makes judgements and estimates in determining the accrual balance in each reporting period.

In  the  event  advance  payments  are  made  to  a  CRO,  CMO  or  other  outside  service  provider,  the  payments  are  recorded  within
prepaid expenses and other current assets in the Consolidated Balance Sheets and subsequently recognized as research and development
expense in the consolidated statements of operations when the associated services have been performed. As actual costs become known,
the Company adjusts its estimates, liabilities and assets. Inputs used in the determination of estimates discussed above may vary from
actual, which will result in adjustments to research and development expense in future periods.

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IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Selling, general and administrative expense

Selling,  general  and  administrative  expenses  consist  primarily  of  salaries  and  other  related  costs,  including  stock-based
compensation,  for  personnel  in  executive,  finance,  procurement,  legal,  investor  relations,  facilities,  business  development,  marketing,
commercial, information technology and human resources functions. Other significant costs include facility costs not otherwise included
in research and development expenses. Selling, general and administrative costs are expensed as incurred, and the Company accrues for
services provided by third parties related to such expenses by monitoring the status of services provided and receiving estimates from its
service providers and adjusting its accruals as actual costs become known.

Income Taxes

The  Company  accounts  for  income  taxes  using  the  asset  and  liability  method  whereby  deferred  tax  assets  are  recognized  for
deductible temporary differences, and deferred tax liabilities are recognized for taxable temporary differences. Temporary differences are
the differences between the reported amounts of assets and liabilities and their tax bases. Deferred tax assets are reduced by a valuation
allowance when, in the opinion of management, it is more likely than not that some or all of the deferred tax assets will not be realized.
Deferred tax assets and liabilities are adjusted for the effects of changes in tax laws and rates on the date of enactment.

ASC Topic 740, Income Taxes (“ASC 740”), clarifies the accounting for uncertainty in income taxes recognized in an enterprise’s
financial  statements  and  prescribes  a  recognition  threshold  and  measurement  attribute  for  the  financial  statement  recognition  and
measurement of a tax position taken or expected to be taken in a tax return. ASC 740 provides guidance on de-recognition, classification,
interest and penalties, accounting in interim periods, disclosure, and transition. The Company will classify as income tax expense any
interest and penalties. The Company has no material uncertain tax positions for any of the reporting periods presented.

Net Loss per Share

Basic  net  loss  per  share  is  computed  by  dividing  the  net  loss  by  the  weighted  average  number  of  common  shares  outstanding

during the period.

Diluted net loss per share is computed by dividing the net loss by the sum of the weighted average number of shares of common
stock outstanding and the dilutive common stock equivalent outstanding during the period. The Company’s potentially dilutive common
stock  equivalent  shares,  which  include  incremental  common  shares  issuable  upon  (i)  the  exercise  of  outstanding  stock  options,  (ii)
purchases though the 2020 Employee Stock Purchase Plan (the “2020 ESPP”), (iii) vesting of restricted stock units, and (vi) conversion
of preferred stock, are only included in the calculation of diluted net loss per share when their effect is dilutive.

As of December 31, 2023, 2022, and 2021, the following outstanding common stock equivalents have been excluded from the

calculation of net loss per share because their impact would be anti-dilutive.

Stock options
Employee Stock Purchase Plan
Restricted stock units
Series A Convertible Preferred Stock*
Series B Convertible Preferred Stock*

*on an as-converted basis

2023
18,899,849  
296,751
3,453,901
97,000
2,842,158  
25,589,659  

As of December 31, 
2022
15,240,197  
260,859
2,436,764
97,000
2,842,158  
20,876,978  

2021
12,520,865
85,227
1,110,010
97,000
2,842,158
16,655,260

The dilutive effect of potentially dilutive securities would be reflected in diluted earnings per common share by application of the
treasury  stock  method.  Under  the  treasury  stock  method,  an  increase  in  the  fair  market  value  of  the  Company's  common  stock  could
result in a greater dilutive effect from potentially dilutive securities.

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Use of Estimates

IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that
affect  the  reported  amounts  of  assets  and  liabilities  and  disclosure  of  contingent  assets  and  liabilities  at  the  date  of  the  financial
statements and the reported amounts of expenses during the reporting period. Actual results could differ from those estimates. Significant
items subject to such estimates and assumptions include assumptions made in the fair value of intangible assets, inventories acquired as
part  of  the  acquisition  of  Proleukin®,  equity  awards  and  related  stock-based  compensation,  assumptions  used  in  measuring  operating
right-of-use assets and operating lease liabilities, accounting for potential liabilities, including estimates inherent in accruals related to
clinical trials, and the realizability of the Company’s deferred tax assets.

Principles of Consolidation

The accompanying consolidated financial statements include the accounts of Iovance Biotherapeutics, Inc. and its wholly-owned
subsidiaries, Iovance Biotherapeutics Manufacturing LLC, Iovance Biotherapeutics GmbH, and Iovance Biotherapeutics B.V., Iovance
Biotherapeutics UK Ltd and Iovance Biotherapeutics UK SP Ltd (together, the “UK subsidiaries”), and Iovance Biotherapeutics Canada,
Inc. All intercompany accounts and transactions have been eliminated.

Certain prior year amounts in the notes to these consolidated financial statements have been reclassified for consistency with the
current  year  presentation.  These  reclassifications  had  no  effect  on  the  previously  reported  consolidated  balance  sheets,  consolidated
statements  of  operations,  consolidated  statements  of  other  comprehensive  loss,  consolidated  statements  of  stockholder’s  equity  or
consolidated statements of cash flows. 

Foreign Currency Translation

The assets and liabilities of the Company’s subsidiaries whose functional currencies are not in U.S. dollars are translated into U.S.
dollars at the related period-end exchange rate. The U.S. dollar effects that arise from translation of net assets of these subsidiaries at
changing rates are recognized in Accumulated Other Comprehensive Income (Loss) in the consolidated balance sheets. The subsidiaries’
net loss is translated into U.S. dollars by using the average exchange rate for the applicable period. The consolidated financial statements
are presented in U.S. dollars, which is the Company’s reporting currency.

Segment Reporting

The  Company  operates  in  one  segment,  focused  on  developing  and  commercializing  therapies  using  autologous  TIL  for  the

treatment of metastatic melanoma and other solid tumor cancers.

Concentrations

The Company is subject to credit risk from its portfolio of cash, cash equivalents and investments. Under its investment policy, the
Company  limits  amounts  invested  in  such  securities  by  credit  rating,  maturity,  industry  group,  investment  type  and  issuer,  except  for
securities issued by the U.S. government. The Company does not believe it is exposed to any significant concentrations of credit risk
from these financial instruments. The Company maintains cash, cash equivalents and investment balances at four financial institutions.
Management believes that the financial institutions which hold its cash are financially sound and, accordingly, minimal credit risk exists.
As  of  December  31,  2023  and  2022,  respectively,  the  Company’s  cash  balances  were  in  excess  of  insured  limits  maintained  at  the
financial institutions.

Recent Accounting Standards Issued But Not Yet Adopted

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which
enhances  the  disclosures  of  income  taxes.  ASU  2023-09  is  effective  for  the  Company  in  its  annual  reporting  for  fiscal  2025  on  a
prospective  basis.  Early  adoption  and  retrospective  reporting  are  permitted.  The  Company  is  currently  evaluating  the  impact  of  ASU
2023-09 on its consolidated financial statements.

In  November  2023,  the  FASB  issued  ASU  2023-07,  Segment  Reporting  (Topic  280):  Improvements  to  Reportable  Segment
Disclosures,  which  enhances  the  disclosures  required  for  operating  segments  in  annual  and  interim  consolidated  financial  statements.
ASC 2023-07 is effective for the Company in its annual reporting for fiscal year 2024 and for interim period reporting beginning in

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IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

fiscal year 2025 on a retrospective basis. Early adoption is permitted. The Company is currently evaluating the impact of ASC 2023-07
on its consolidated financial statements.

NOTE 3. CASH EQUIVALENTS AND INVESTMENTS

The amortized cost and fair value of cash equivalents and investments as of December 31, 2023 and December 31, 2022 were as

follows (in thousands):

As of December 31, 2023
U.S. treasury securities
Money market funds
Total investments

As of December 31, 2022
U.S. treasury securities
U.S. government agency securities
Corporate securities
Commercial paper
Money market funds
Total investments

Amortized
Cost
164,940
34,053
198,993

Amortized
Cost
118,570
11,272
7,230
148,299
88,001
373,372

$

$

$

$

$

$

$

$

Gross
Unrealized
Gains

Gross
Unrealized
Losses

39
—
39

$

$

— $
—
— $

Gross
Unrealized
Gains

Gross
Unrealized
Losses

— $
—  
—
8
—
8

$

(850)
(7)
—
(53)
—
(910)

$

$

Fair Value

164,979
34,053
199,032

Fair Value

117,720
11,265
7,230
148,254
88,001
372,470

The fair value of cash equivalents and investments as of December 31, 2023 and December 31, 2022 are classified as follows in

the Company’s consolidated balance sheets (in thousands):

Classified as:
Cash equivalents
Short-term investments

Total investments

December 31, 

December 31, 

2023
34,053
164,979
199,032

$

$

$

$

2022
132,356
240,114
372,470

Cash equivalents in the tables above exclude cash demand deposits of $80.8 million and $99.4 million as of December 31, 2023
and 2022, respectively. Unrealized gains and losses are included in accumulated other comprehensive (loss) income, and as of December
31,  2023  and  2022  no  unrealized  losses  on  available-for-sale  securities  have  resulted  from  credit  risk.  All  available-for-sale  securities
held as of December 31, 2023 and December 31, 2022 had contractual maturities of less than one year. No significant available-for-sale
securities  held  as  of  the  periods  presented  have  been  in  a  continuous  unrealized  loss  position  for  more  than  12  months.  To  date,  the
Company has not recorded any impairment charges on its investments.

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IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Recurring Fair Value Measurements

As of December 31, 2023 and 2022, the fair value of the Company’s financial assets that are measured at fair value on a recurring
basis,  which  consist  of  cash  equivalents  and  short-term  and  long-term  investments  classified  as  available-for-sale  securities,  are
categorized in the table below based upon the lowest level of significant input to the valuations (in thousands):

U.S. treasury securities
Money market funds

Total

U.S. treasury securities
U.S. government agency securities
Corporate securities
Commercial paper
Money market funds

Total

$

$

$

$

Assets at Fair Value as of December 31, 2023

Level 1
164,979
34,053
199,032

$

$

Level 2

Level 3

— $
—
— $

— $
—
— $

Assets at Fair Value as of December 31, 2022

Level 1
117,720

$
—  
—
—
88,001
205,721

$

Level 2

Level 3

— $

11,265
7,230
148,254
—
166,749

$

— $
—  
—
—
—
— $

Total
164,979
34,053
199,032

Total
117,720
11,265
7,230
148,254
88,001
372,470

Level  2  assets  consist  of  commercial  paper  and  government  agency  securities.  Level  2  inputs  for  the  valuations  are  limited  to

quoted prices for similar assets or liabilities in active markets and inputs other than quoted prices that are observable for the asset.

NOTE 4. PROLEUKIN® ACQUISITION

On  January  23,  2023,  the  Company  and  its  newly  formed,  wholly  owned  subsidiary,  Iovance  Biotherapeutics  UK  Ltd  (the
“Purchaser”) entered into an Option Agreement (the “Option Agreement”) with Clinigen Holdings Limited, Clinigen Healthcare Limited,
and Clinigen, Inc. (collectively “Clinigen”), a global pharmaceutical services company, pursuant to which the Purchaser would acquire
the worldwide rights for the manufacturing, supply, commercialization and sale of Proleukin® (aldesleukin) (the “Acquisition”).

On  May  18,  2023,  the  Company  completed  the  Acquisition  and  specifically  acquired  (i)  all  issued  and  outstanding  shares  of
Clinigen  SP  Limited  (the  “Target”),  (ii)  the  business  of  the  Target  and  Clinigen  (the  “Proleukin®  Business”)  comprising  the
manufacturing, supply, commercialization and the generation of income from the Product rights and the undertaking of an active role in
the  development,  maintenance  and  exploitation  of  those  rights,  and  (iii)  certain  specified  assets  identified  in  the  Option  Agreement.
Pursuant to the Option Agreement, the Company paid to Clinigen (i) an upfront payment of £166.9 million (or approximately $207.2
million),  including  the  applicable  stamp-tax  payment,  and  (ii)  a  payment  for  certain  inventory  of  £2.4  million  (or  approximately  $3.0
million) using existing cash on hand. The Option Agreement includes potential future contingent payments, as discussed below.  

The  Acquisition  was  accounted  for  as  an  asset  acquisition  because  substantially  all  of  the  fair  value  of  the  acquired  assets  was
concentrated in the acquired developed technology related to the intellectual property rights of Proleukin® and therefore the Acquisition
does not meet the definition of a business in accordance with ASC 805. The Proleukin® Business operations have been included in the
Company’s consolidated financial statements commencing from the acquisition date.

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IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The  following  table  summarizes  the  total  cash  consideration  and  allocated  acquisition  date  fair  values  of  assets  acquired  and

liabilities assumed (in thousands):

Cash
Inventory
Developed technology
Assembled workforce
Deferred tax liability

Total cost of acquisition

$

$

Amounts

35
9,688
232,665
636
(20,352)
222,672

The $222.7 million of total cost of the Acquisition consisted of (i) a $210.2 million of cash payment to Clinigen and (ii) $12.5
million of direct transaction costs incurred by the Company. The Option Agreement additionally provides for contingent cash payments
consisting  of  (i)  a  milestone  payment  of  £41.7  million,  or  approximately  $50.0  million,  upon  first  approval  of  lifileucel  in  advanced
melanoma, (ii) deferred consideration based on double digit rates on global net sales (as defined in the Option Agreement) payable from
the Company to the sellers following the completion of the Acquisition over a deferred consideration term of twelve years, and (iii) after
the deferred consideration term, earnout payments payable from the Company to sellers following the completion of the transaction if
deferred  consideration  payments  are  equal  or  greater  than  the  deferred  consideration  amount  provided  for  in  the  Option  Agreement.
These contingent payments were determined to be within the scope of ASC 450 and will be recognized when they are both probable and
estimable. The recognition criteria have not been met as of the acquisition date or as of December 31, 2023.

The net assets acquired in the Acquisition were recorded by allocating the total cost of the Acquisition to the assets acquired on a

relative fair value basis based on their estimated fair values as of May 18, 2023, which is the date that the Acquisition was completed.

The fair value of the developed technology was estimated using a multi-period excess earnings income approach that discounts
expected cash flows to present value by applying a discount rate that represents the estimated rate that market participants would use to
value the intangible assets. The fair value of the developed technology is being amortized over an expected useful life of 15 years and is
recorded as Cost of Sales in the Company’s consolidated statement of operations.

The fair value of the assembled workforce was estimated using a replacement cost less depreciation method. The fair value of the
assembled workforce is being amortized over an expected useful life of 3 years and is recorded as Selling, General and Administrative
expense in the Company’s consolidated statement of operations.

The fair value of the acquired inventory was determined using the comparative sales method of the market approach, which uses
historical and expected average selling prices of inventory as the base amount to which adjustment for costs to complete for work-in-
process, cost of disposal and reasonable profit allowance are applied. The inventory fair value adjustment is being amortized as cost of
sales as the acquired inventories are sold.

A deferred tax liability was recognized on the temporary differences related to the book and tax basis of the acquired intangible
assets.  The  deferred  tax  liability  and  resulting  adjustment  to  the  carrying  amount  of  the  acquired  intangibles  was  calculated  using  the
simultaneous equations method under ASC 740. The tax rate used is based on the estimated statutory rates in the United Kingdom as this
is where the intangible assets are domiciled.

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IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

NOTE 5. INTANGIBLE ASSETS, NET

The gross carrying amounts and net book value of intangible assets as of December 31, 2023 are as follows (in thousands):

Intangible assets:

Developed technology
Assembled workforce
Total Intangible Assets

Gross carrying
amounts

December 31, 2023
Accumulated
amortization

Intangible assets, net

$

$

238,612 $
652
239,264 $

(9,871) $
(135)
(10,006) $

228,741
517
229,258

* Amounts are translated using the foreign exchange rate as of 12/31/2023.

The Company recognized amortization expense of $9.9 million during the year ended December 31, 2023. Amortization expense
for  the  developed  technology  and  assembled  workforce  is  recorded  in  Cost  of  sales  and  Selling,  general  and  administrative  expense,
respectively, in the consolidated statement of operations for the year ended December 31, 2023. There was no such expense recorded in
the year ended December 31, 2022.

The total estimated amortization of the Company’s intangible assets the years ending December 31, 2024, 2025, 2026, 2027 and

2028 are $16.1 million, $16.1 million, $16.0 million, $15.9 million, and $15.9 million, respectively.

NOTE 6. INVENTORY

Inventory presented in the consolidated balance sheet as of December 31, 2023 pertains solely to Proleukin®. Inventory classified

as work in process are unlabeled vials of Proleukin®.

As of December 31, 2023 and December 31, 2022, inventory consists of the following (in thousands):

Work in process
Finished goods

Total inventory

NOTE 7. REVENUE

December 31, 

2023

December 31, 

2022

$

$

5,749
4,623
10,372

$

$

—
—
—

Product  sales  for  the  year  ended  December  31,  2023  was  $1.2  million  and  represented  sales  of  Proleukin®  made  primarily  in

licensed markets outside of the U.S. To date, there have been no product sales from Proleukin® in the U.S. market.

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IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

NOTE 8. PROPERTY AND EQUIPMENT, NET

Property and equipment, net consists of the following (in thousands):

Leasehold improvements
Lab, process, and validation equipment
Utility equipment
Office furniture and equipment
Computer software
Computer equipment
Machinery and equipment
Construction in progress

Total property and equipment, cost

Less: Accumulated depreciation and amortization

Property and equipment, net

December 31, 
2023

December 31, 
2022

$

$

76,804
23,131
5,990
3,297
7,772
542
306
24,101
141,943
(27,913)
114,030

$

$

74,305
22,136
5,951
2,927
6,736
695
82
9,118
121,950
(16,718)
105,232

Depreciation expense for the years ended December 31, 2023, 2022, and 2021 was approximately $11.6 million, $9.3 million and
$3.1 million, respectively. During the years ended December 31, 2023 and 2022, the Company placed $2.6 million and $27.2 million of
assets related to the iCTC in service, respectively, and initiated depreciation of these assets.

NOTE 9. ACCRUED EXPENSES

Accrued expenses consist of the following (in thousands):

Employee and consultant related expenses
Clinical related
Manufacturing related
Facilities related
Legal and related services
Inventory related
Other accrued expenses
  Total accrued expenses

NOTE 10. STOCKHOLDERS’ EQUITY

Common Stock

December 31, 
2023

December 31, 
2022

$

$

34,814
10,911
10,893
2,437
1,610
2,148
6,593
69,406

$

$

20,188
14,812
4,467
6,510
3,015
—
3,303
52,295

The Company’s certificate of incorporation, as amended, authorizes the issuance of up to 500,000,000 shares of the Company’s
common stock, par value $0.000041666. As of December 31, 2023, 256,135,715 shares of the Company’s common stock were issued
and outstanding.

Public Offerings

On July 13, 2023, the Company closed an underwritten public offering of 23,000,000 shares of the Company’s common stock,
which included 3,000,000 shares of common stock issued pursuant to the exercise of the option granted to the underwriters, at a public
offering  price  of  $7.50  per  share,  before  underwriting  discounts  and  commissions.  The  total  net  proceeds  to  the  Company  from  the
offering,  including  the  exercise  of  the  option  by  the  underwriters,  were  $161.5  million  after  deducting  underwriting  discounts  and
commissions and offering expenses payable by the Company.

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At the Market Offering Program

IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

On November 18, 2022, the Company entered into an Open Market Sale Agreement (the “2022 Sale Agreement”) with Jefferies
LLC (“Jefferies”). Under the terms of the 2022 Sale Agreement, the Company was able to, from time to time, at its sole discretion, issue
and sell through Jefferies, acting as a sales agent, up to $500.0 million of shares of the Company’s common stock. On June 16, 2023, the
Company entered into a new Open Market Sale Agreement (the “2023 Sale Agreement”), which superseded and replaced in its entirety
the 2022 Sale Agreement, which was terminated by the Company. Under the terms of the 2023 Sale Agreement, the Company may, from
time  to  time,  in  its  sole  discretion,  issue  and  sell  through  Jefferies,  acting  as  a  sales  agent,  up  to  $450.0  million  of  shares  of  the
Company’s  common  stock.  The  issuance  and  sale,  if  any,  of  the  shares  of  common  stock  by  the  Company  under  the  2023  Sale
Agreement was or will be made pursuant to a prospectus supplement dated June 16, 2023 to the Company’s Registration Statement on
Form S-3ASR, which became effective immediately upon filing with the SEC on June 16, 2023.

Pursuant to the 2023 Sale Agreement, Jefferies may sell the Common Shares by any method permitted by law deemed to be an “at
the market” offering as defined in Rule 415 of the Securities Act of 1933, as amended. Jefferies will use commercially reasonable efforts
consistent with its normal trading and sales practices to sell the Common Shares from time to time, based upon instructions from the
Company (including any price or size limits or other customary parameters or conditions the Company may impose). The Company will
pay Jefferies a commission of up to 3.0% of the gross sales proceeds of any Common Shares sold through Jefferies under the 2023 Sale
Agreement.

The Company is not obligated to make any sales of Common Shares under the 2023 Sale Agreement. The offering of Common
Shares pursuant to the 2023 Sale Agreement will terminate upon the earlier to occur of (i) the issuance and sale, through Jefferies, of all
Common Shares subject to the 2023 Sale Agreement and (ii) termination of the 2023 Sale Agreement in accordance with its terms.

For the years ended December 31, 2023 and 2022, the Company received $301.7 million and $189.5 million in net proceeds, net
of offering costs, through the sale of 44,080,226 shares and 29,788,993 shares of its common stock through the 2023 Sale Agreement
and/or the 2022 Sale Agreement at a weighted average price per share of $6.99 and $6.52, respectively.

Preferred Stock

The Company’s certificate of incorporation authorizes the issuance of up to 50,000,000 shares of “blank check” preferred stock.
As  of  December  31,  2023,  17,000  shares  were  designated  as  Series  A  Convertible  Preferred  Stock  and  11,500,000  shares  were
designated as Series B Convertible Preferred Stock.

Series A Convertible Preferred Stock

A  total  of  17,000  shares  of  Series  A  Convertible  Preferred  Stock  have  been  authorized  for  issuance  under  the  Company’s
Certificate  of  Designation  of  Preferences  and  Rights  of  Series  A  Convertible  Preferred  Stock.  The  shares  of  Series  A  Convertible
Preferred Stock have a stated value of $1,000 per share and are initially convertible into shares of common stock at a price of $2.00 per
share, subject to adjustment. Each share of Series A Preferred Stock is initially convertible into 500 shares of common stock.

The  Series  A  Convertible  Preferred  Stock  may,  at  the  option  of  each  investor,  be  converted  into  fully  paid  and  non-assessable
shares  of  common  stock.  The  holders  of  shares  of  Series  A  Convertible  Preferred  Stock  do  not  have  the  right  to  vote  on  matters  that
come  before  the  Company’s  stockholders.  In  the  event  of  any  dissolution  or  winding  up  of  the  Company,  proceeds  shall  be  paid  pari
passu  among  the  holders  of  common  stock  and  preferred  stock,  pro  rata  based  on  the  number  of  shares  held  by  each  holder.  The
Company may not declare, pay or set aside any dividends on shares of capital stock of the Company (other than dividends on shares of
common stock payable in shares of common stock) unless the holders of the Series A Convertible Preferred Stock shall first receive an
equal dividend on each outstanding share of Series A Convertible Preferred Stock.

No shares of Series A Convertible Preferred Stock were converted to common stock during the year ended December 31, 2023
and  2022.  As  of  December  31,  2023,  and  2022,  194  shares  of  Series  A  Convertible  Preferred  Stock  (that  are  convertible  into  97,000
shares of common stock) remained outstanding.

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IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Series B Convertible Preferred Stock

A total of 11,500,000 shares of Series B Convertible Preferred Stock are authorized for issuance under the Company’s Series B
Certificate  of  Designation  of  Rights,  Preferences  and  Privileges  of  Series  B  Convertible  Preferred  Stock.  The  shares  of  Series  B
Convertible Preferred Stock have a stated value of $4.75 per share and are convertible into shares of the Company’s common stock at an
initial conversion price of $4.75 per share. Each share of Series B Preferred Stock is initially convertible into 1 share of common stock.

The  Series  B  Convertible  Preferred  Stock  may,  at  the  option  of  each  investor,  be  converted  into  fully  paid  and  non-assessable
shares of common stock. The holders of Series B Convertible Preferred Stock do not have the right to vote on matters that come before
the Company's stockholders. In the event of any dissolution or winding up of the Company, proceeds shall be paid pari passu among the
holders  of  common  stock  and  preferred  stock,  pro  rata  based  on  the  number  of  shares  held  by  each  holder.  Holders  of  Series  B
Convertible  Preferred  Stock  are  entitled  to  dividends  on  an  as-if-converted  basis  in  the  same  form  as  any  dividends  actually  paid  on
shares  of  the  Series  A  Convertible  Preferred  Stock  or  the  Company’s  common  stock.  So  long  as  any  Series  B  Convertible  Preferred
Stock  remains  outstanding,  the  Company  may  not  redeem,  purchase  or  otherwise  acquire  any  material  amount  of  the  Series  A
Convertible Preferred Stock or any securities junior to the Series B Convertible Preferred Stock.

No shares of Series B Convertible Preferred Stock were converted to common stock during the year ended December 31, 2023
and 2022. At December 31, 2023 and 2022, 2,842,158 shares of Series B Preferred Stock (that are convertible into 2,842,158 shares of
common stock) remained outstanding.

Equity Incentive Plans

The  Company  has  multiple  equity  incentive  plans  under  which  it  grants  awards.  As  of  December  31,  2023,  there  are  275,625

shares available to grant under the 2014 Equity Incentive Plan (the “2014 Plan”).  

On  April  22,  2018,  the  Company’s  Board  of  Directors  (the  “Board”)  adopted  the  Iovance  Biotherapeutics,  Inc.  2018  Equity
Incentive Plan (the “2018 Plan”), which was approved by the Company’s stockholders in June 2018. The 2018 Plan as approved initially
authorized the issuance up to an aggregate of 6,000,000 shares of common stock in the form of incentive (qualified) stock options, non-
qualified options, common stock, stock appreciation rights, restricted stock awards, restricted stock units, other stock-based awards, other
cash-based awards or any combination of the foregoing. On June 8, 2020, the Company's stockholders approved an amendment to the
2018 Plan to increase the number of shares available for issuance upon the exercise of stock options under the 2018 Plan from 6,000,000
to  14,000,000  shares,  which  became  effective  immediately.  Additionally,  on  June  10,  2022,  the  Company’s  stockholders  approved  an
amendment to the 2018 Plan to increase the number of shares available for issuance upon the exercise of stock options under the 2018
Plan  from  14,000,000  to  20,700,000  shares,  which  became  effective  immediately.  On  June  6,  2023,  the  Company’s  stockholders
approved an amendment to the 2018 Plan to increase the number of shares available for issuance under the 2018 Plan from 20,700,000 to
29,700,000, which became effective immediately. As of December 31, 2023, 9,906,666 shares of common stock were available for grant
under the Company’s 2018 Plan.

On  September  22,  2021,  the  Board  adopted  the  Iovance  Biotherapeutics,  Inc.  2021  Inducement  Plan  (the  “2021  Inducement
Plan”). The 2021 Inducement Plan provides for the grant of non-qualified options, common stock, stock appreciation rights, restricted
stock awards, restricted stock units, other stock-based awards, other cash-based awards, or any combination of the foregoing. The 2021
Inducement Plan was recommended for approval by the Compensation Committee of the Board (the “Compensation Committee”), and
subsequently approved and adopted by the Board without stockholder approval pursuant to Rule 5635(c)(4) of the rules and regulations
of The Nasdaq Stock Market LLC (the “Nasdaq Listing Rules”).

The  Board  initially  reserved  1,000,000  shares  of  the  Company’s  common  stock  for  issuance  pursuant  to  equity  awards  granted
under the 2021 Inducement Plan, and the 2021 Inducement Plan is administered by the Compensation Committee. On January 12, 2022,
the Compensation Committee approved an amendment to the 2021 Inducement Plan solely to increase the number of shares reserved for
issuance under the 2021 Inducement Plan from 1,000,000 shares of the Company’s common stock to 1,750,000 shares of the Company’s
common stock without stockholder approval pursuant to Rule 5635(c)(4) of the Nasdaq Listing Rules.

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IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

On  March  13,  2023,  the  Compensation  Committee  approved  an  additional  amendment  to  the  2021  Inducement  Plan  solely  to
increase the number of shares reserved for issuance under the 2021 Inducement Plan from 1,750,000 shares of the Company’s common
stock  to  2,250,000  shares  of  the  Company’s  common  stock  without  stockholder  approval  pursuant  to  Rule  5635(c)(4)  of  the  Nasdaq
Listing Rules. In accordance with Rule 5635(c)(4) of the Nasdaq Listing Rules, equity awards under the 2021 Inducement Plan may only
be made to an employee if such employee is granted such equity awards in connection with his or her commencement of employment
with the Company or a subsidiary and such grant is an inducement material to his or her entering into employment with the Company or
such subsidiary. In addition, awards under the 2021 Inducement Plan may only be made to employees who have not previously been an
employee or member of the Board (or any parent or subsidiary of the Company) or following a bona fide period of non-employment of
the employee by the Company (or a parent or subsidiary of the Company). As of December 31, 2023, 349,428 shares of common stock
were available for grant under the Inducement Plan.

Stock Options

A  summary  of  the  status  of  stock  options  as  of  December  31,  2023,  and  the  changes  during  the  three  years  then  ended,  is

presented in the following table:

Outstanding at December 31, 2022
Issued
Exercised
Expired/Cancelled
Outstanding at December 31, 2023
Ending vested and expected to vest at December 31, 2023
Options exercisable at December 31, 2023

Number
of
Options
15,240,197  
5,379,670
(8,860)
(1,711,158)
18,899,849  
18,899,849
12,160,135

$

$
$
$

Weighted
Average
Exercise
Price

Weighted
Average
Remaining
Contract
Life

Aggregate
Intrinsic
Value
(in thousands)

22.45
7.04
7.10
17.01
18.57  
18.57
23.40  

6.75
6.75
5.54

$
$
$

7,065
7,065
1,337

As  of  December  31,  2023,  there  was  $31.7  million  of  total  unrecognized  compensation  expense  related  to  unvested  employee

stock options, which the Company expects to recognize over a remaining weighted average period of 1.84 years.

The weighted average grant date fair value for employee options granted under the Company's stock option plans during the years

ended December 31, 2023, 2022, and 2021 was $4.91, $8.29, and $22.28 per option, respectively.

The aggregate intrinsic value in the table above reflects the total pre-tax intrinsic value (the difference between the Company’s
closing stock price on the last trading day of the year ended December 31, 2023 and the exercise price of the options, multiplied by the
number of in-the-money stock options) that would have been received by the option holders had all option holders exercised their options
on  December  31,  2023.  The  intrinsic  value  of  the  Company’s  stock  options  changes  based  on  the  closing  price  of  the  Company’s
common stock.

The aggregate intrinsic value of stock options exercised during the year ended December 31, 2023, 2022, and 2021 were $0.01

million, $0.04 million, and $21.3 million, respectively.

Employee Stock Purchase Plan

In June 2020, the Company adopted the 2020 ESPP upon its approval by the Company’s shareholders at its Annual Stockholders
Meeting on June 8, 2020. The Company reserved 500,000 shares of its common stock for issuance under the 2020 ESPP. On June 6,
2023,  the  Company's  stockholders  approved  an  amendment  to  the  2020  ESPP  to  increase  the  number  of  shares  reserved  for  issuance
under the 2020 ESPP from 500,000 shares of the Company’s common stock to 1,400,000 shares of the Company’s common stock, which
became effective immediately.

Under  the  2020  ESPP,  employees  of  the  Company  can  purchase  shares  of  our  common  stock  based  on  a  percentage  of  their

compensation subject to certain limits. The purchase price per share is equal to the lower of 85% of the fair market value of its common

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IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

stock on the offering date or the purchase date with a six-month look-back feature. The 2020 ESPP purchases are settled with common
stock from the 2020 ESPP’s previously authorized and available pool of shares.

The compensation expense related to the 2020 ESPP for the years ended December 31, 2023, 2022 and 2021 was $1.2 million,
$1.3  million  and  $1.2  million,  respectively.  Under  the  2020  ESPP,  for  the  years  ended  December  31,  2023  and  2022,  the  Company
received proceeds of $2.4 million for the issuance of 435,459 shares and $1.7 million for the issuance of 262,701 shares, respectively. As
of December 31, 2023, there was $0.6 million of unrecognized compensation cost associated with the 2020 ESPP, which is expected to
be recognized over 5.4 months.

Restricted Stock Units and Performance Restricted Stock Units

In  addition  to  RSUs  that  have  time-based  vesting  requirements,  from  time  to  time  the  Company  may  issue  RSUs  that  include
certain performance vesting criteria based upon the satisfaction of stated objectives (“PRSUs”). Compensation expense related to PRSUs
is based on the grant date fair value of the award and recorded from the period that achievement is determined to be probable through the
stated service period associated with the award. 

Activity for RSUs and PRSUs during the years ended December 31, 2023 and 2022 is presented in the following table:

Outstanding, non-vested as of December 31, 2022

Granted
Vested/Released
Canceled/Forfeited

Outstanding as of December 31, 2023
Ending vested and expected to vest at December 31, 2023

Number
of
RSUs and PRSUs

Weighted
Average
Grant Date
Fair Value

2,436,764
2,729,348
(1,253,465)
(458,746)
3,453,901
3,453,901

$

$
$

14.74
7.19
16.17
9.35
8.97
8.97

As  of  December  31,  2023  and  2022,  there  was  $19.9  million  and  $20.6  million  of  unrecognized  stock-based  compensation
expense associated with unvested RSUs, which the Company expects to recognize over a remaining weighted-average period of 1.65 and
1.72 years, respectively. The aggregate intrinsic value of the unvested RSUs and PRSUs outstanding as of December 31, 2023 and 2022,
was $28.1 million and $14.5 million, respectively.

Stock-Based Compensation

Total  stock-based  compensation  expense  related  to  the  Company’s  stock-based  awards  was  recorded  on  the  consolidated

statements of operations as follows (in thousands):

Research and development
Selling, general and administrative
   Total stock-based compensation expense

2023

Years Ended December 31, 
2022

2021

$

$

34,926
27,699
62,625

$

$

50,242
33,780
84,022

$

$

40,833
28,932
69,765

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IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Total stock-based compensation expense by type of award was as follows (in thousands):

Stock option expense
Restricted stock expense
ESPP expense
   Total stock-based compensation expense

2023

Years Ended December 31, 
2022

2021

$

$

45,340
16,062
1,223
62,625

$

$

58,308
24,436
1,278
84,022

$

$

56,305
12,247
1,213
69,765

The following table summarizes the assumptions relating to options granted pursuant to the Company’s equity incentive plans for

the years ended December 31, 2023, 2022, and 2021:

Assumptions:
Expected term (years)
Expected volatility
Risk-free interest rate
Expected dividend yield

Stock Option
Years Ended December 31, 
2022

2023

2021

5.18 - 5.37

4.94 - 5.12

4.94 - 5.28

ESPP
Years Ended December 31, 
2022

0.50

2021

0.50

2023

0.5

83.63% - 84.21%   73.73% - 83.90%   70.35% - 73.88% 72.96% - 83.36% 73.02% - 137.42% 52.04% - 94.56%

3.59% - 4.60%

1.25% - 4.05%

0.36% - 0.97%

5.38% - 5.40%

1.98% - 4.78%

0.06% - 0.13%

0%

0%

0%

0%

0%

0%

- Expected  Term  (Years)—The  expected  term  of  the  stock  option  grants  was  calculated  based  on  historical  exercises,

cancellations, and forfeitures of stock options and outstanding option shares.

- Expected Volatility —The expected volatility is based on the historical volatility for the Company's stock over a period equal

to the expected terms of the options.

- Risk-Free  Interest  Rate  —The  risk-free  interest  rate  was  based  on  the  market  yield  currently  available  on  United  States

Treasury securities with maturities approximately equal to the option’s expected term.

- Expected Dividend Yield —The Company has never paid dividends and does not expect to pay dividends in the foreseeable

future.

- Forfeiture Rate —The Company recognizes forfeitures as they occur.

Each of the inputs discussed above is subjective and generally requires significant management judgment.

NOTE 11. EMPLOYEE BENEFIT PLAN

The Company maintains a defined contribution plan covering substantially all U.S. employees under Section 401(k) of the Internal
Revenue  Code  of  1986,  as  amended  (the  “IRC”).  The  Company's  matching  contribution  to  the  defined  contribution  plan  was  $4.1
million, $3.0 million, and $2.2 million for the years ended December 31, 2023, 2022 and 2021, respectively.

NOTE 12. INCOME TAXES

The  Company  recorded  an  income  tax  benefit  of  $3.5  million  for  the  year  ended  December  31,  2023,  but  did  not  record  a

provision or benefit for income taxes for the years ended December 31, 2022 or 2021.

Upon  the  completion  of  the  Acquisition  on  May  18,  2023,  a  deferred  tax  liability  of  $20.4  million  was  recognized  on  the
temporary  differences  related  to  the  book  and  tax  basis  of  the  acquired  intangible  assets.  The  deferred  tax  liability  and  resulting
adjustment to the carrying amount of the acquired intangibles was calculated using the simultaneous equations method under ASC 740.
The tax rate used is based on the estimated statutory rates in the United Kingdom as this is where the intangible assets are domiciled.

The Company recorded a tax benefit of $3.5 million for the year ended December 21, 2023, which resulted in an effective tax rate

of 0.78%. The effective tax rate is different from U.S. statutory rate of 21% due to the full valuation allowance against tax losses in

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IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

the U.S. The income tax benefit for the periods presented primarily relates to operations in the United Kingdom and the movement of
deferred tax assets and liabilities.

The significant components of the Company’s net deferred tax assets and liabilities are summarized as follows (in thousands):

As of December 31, 

2023

2022

Deferred income tax assets:

     Net operating loss carryforwards 
     Stock-based compensation 
     Tax credit carryforwards
     Lease liabilities
     Capitalized R&D
     Reserves and accruals

Deferred tax assets before valuation allowance

     Less: valuation allowance
     Net deferred income tax assets

Deferred tax liabilities:
     Right-of-use assets
     Depreciation and amortization 

Net deferred tax assets (liabilities)

$

$

255,639
28,609
58,565
16,024
99,107
6,540
464,484
(446,853)
17,631

(13,381)
(21,597)
(17,347)

$

$

The reconciliation of the effective income tax rate to the U.S. statutory rate is as follows:

Federal statutory tax rate
Orphan drug and research credits
Permanent and other differences
Stock Based Compensation
State tax, net of federal benefit

Valuation allowance
Effective tax rate

2023

Years ended December 31, 
2022

2021

21%
2%  
(1)% 
(1)% 
1%  
22%
(21)%
1%

21%
1%  
(1)% 
(1)% 
1%  
21%
(21)%
0%

225,904
24,920
46,957
18,017
47,755
3,997
367,550
(350,418)
17,132

(15,578)
(1,554)
—

21%
2%
0%
0%
0%
23%
(23)%
0%

The  Company  had  net  operating  loss  carryforwards  (“NOLs”)  for  federal  and  state  income  tax  purposes  of  approximately  $1.2
billion and $180 million, respectively, as of December 31, 2023. $142.4 million of federal NOLs will expire beginning in 2027, while
$1.0 billion generated after the recently enacted tax reform will have an indefinite life under the Tax Cuts and Jobs Act of 2017 (the “Tax
Act”). The state NOLs will expire if unused in years 2030 through 2043.

The Company’s utilization of NOLs is subject to an annual limitation due to ownership changes that have occurred previously or
that  could  occur  in  the  future  as  provided  in  Section  382  of  the  Internal  Revenue  Code  (“Section  382”),  as  well  as  similar  state
provisions. Section 382 limits the utilization of NOLs when there is a greater than 50% change of ownership as determined under the
regulations. Since its formation, the Company has raised capital through the issuance of capital stock and various convertible instruments
which, combined with the purchasing shareholders’ subsequent disposition of these shares, has resulted in multiple ownership changes as
defined by Section 382, and could result in ownership change in the future upon subsequent disposition. The Company’s utilization of
NOLs may also be adversely affected by future changes in federal and state tax laws and regulations.

In assessing the realization of U.S. deferred tax assets, management considers whether it is more likely than not that some portion
or all the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon future generation for
taxable  income  during  the  periods  in  which  temporary  differences  representing  net  future  deductible  amounts  become  deductible.
Management considers the scheduled reversal of deferred tax liabilities, projected future taxable income and tax planning strategies in
making  this  assessment.  After  consideration  of  all  the  information  available,  management  continues  to  maintain  a  full  valuation
allowance against U.S. federal and state net deferred tax assets as it expected to be in a cumulative loss position and does not have

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IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

sufficient positive evidence to support the realizability of its U.S. net deferred tax assets For the years ended December 31, 2023, 2022
and 2021, the change in the valuation allowance was approximately $96.4 million, $82.9 million, and $78.1 million, respectively.  For
the year ended December 31, 2023, the Company recorded approximately $17.3 million of net deferred tax liability from its operation in
the United Kingdom.  The basis difference resulted from acquisition of Proleukin business.

The  Company  evaluated  the  provisions  of  ASC  740  related  to  the  accounting  for  uncertainty  in  income  taxes  recognized  in  an
enterprise’s financial statements. ASC 740 prescribes a comprehensive model for how a company should recognize, present, and disclose
uncertain positions that the Company has taken or expects to take in its tax return. For those benefits to be recognized, a tax position
must  be  more-likely-than-not  to  be  sustained  upon  examination  by  taxing  authorities.  Differences  between  tax  positions  taken  or
expected  to  be  taken  in  a  tax  return  and  the  net  benefit  recognized  and  measured  pursuant  to  the  interpretation  are  referred  to  as
“unrecognized benefits.” A liability is recognized (or amount of net operating loss carry forward or amount of tax refundable is reduced)
for unrecognized tax benefit because it represents an enterprise’s potential future obligation to the taxing authority for a tax position that
was not recognized as a result of applying the provisions of ASC 740.

If applicable, interest costs related to the unrecognized tax benefits are required to be calculated and would be classified as income
tax expenses in the consolidated statements of operations. Penalties would be recognized as a component of “General and Administrative
Expenses” in the consolidated statements of operations.

A  reconciliation  of  the  beginning  and  ending  balances  of  the  unrecognized  tax  benefits  during  the  years  ended  December  31,

2023, 2022 and 2021 is as follows (in thousands):

Unrecognized benefit - beginning of period
Gross decreases - prior period tax positions
Gross increase current period tax positions
Unrecognized benefit - end of period

2023

Years Ended December 31, 
2022

2021

$

$

21,645
—
4,462
26,107

$

$

18,171
—
3,474
21,645

$

$

14,432
(159)
3,898
18,171

No interest or penalties on unpaid tax were recorded during the years ended December 31, 2023, 2022, or 2021. The Company

does not anticipate any significant changes within 12 months of this reporting date of its uncertain tax positions.

The Company files tax returns in the U.S. federal and state jurisdictions. The U.S. federal and U.S. state taxing authorities may
choose to audit tax returns for tax years beyond the statute of limitation period due to significant tax attribute carryforwards from prior
years, making adjustments only to carryforward attributes. The Company is not currently under examination by income tax authorities in
federal, state or other foreign jurisdictions.

The Inflation Reduction Act of 2022 (the “Act”), which includes certain new tax measures, was signed into law in August 2022.
The Act contains two main tax provisions, a new corporate alternative minimum tax imposed on certain corporations meeting average
annual  financial  statement  income  of  more  than  $1  billion  during  a  three-year  tax  period,  and  an  excise  tax  imposed  upon  share
repurchases by certain publicly traded corporations. The Act is effective for tax years beginning after December 31, 2022; however, the
provisions of the Act will not have a material impact on the Company’s consolidated financial statements. The Company will continue to
monitor the effect of the Act and its impact on the Company.

NOTE 13. LICENSES AND AGREEMENTS

National Institutes of Health (the “NIH”) and the National Cancer Institute (the “NCI”)

Cooperative Research and Development Agreement (the “CRADA”)

In  August  2011,  the  Company  signed  a  five-year  CRADA  with  the  NCI  to  work  on  the  development  of  adoptive  cell
immunotherapies  in  multiple  solid  tumor  types,  including  unmodified  TIL  as  a  stand-alone  therapy  or  in  combination,  improved
methods  for  the  generation  and  selection  of  TIL  cell  therapy  with  anti-tumor  reactivity,  and  strategies  for  more  potent  TILs  that  are
designed to destroy metastatic melanoma cells. The CRADA was amended in 2015 and 2016 to, among other things, extend the term of
the CRADA through August 2021, include new indications such as the development of TIL cell therapy for the treatment of patients

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IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

with  bladder,  lung,  triple-negative  breast,  and  Human  Papilloma  Virus  (“HPV”)-associated  cancers,  and  modify  the  focus  on  the
development of unmodified TIL as a stand-alone therapy or in combination. The parties have continued the development of improved
methods  for  the  generation  and  selection  of  TIL  with  anti-tumor  reactivity  in  metastatic  melanoma,  bladder,  lung,  breast,  and  HPV-
associated cancers.

In August 2021, the NCI and the Company entered into a third amendment to the CRADA. The third amendment, among other
things, extended the term of the CRADA by three years to August 2024. The research plan in this amendment includes the evaluation in
clinical  trials  of  strategies  for  development  of  more  potent  TILs,  such  as  selection  of  CD39/69  double  negative  cells  and  the  use  of
certain inhibitors or other reagents in TIL expansion cultures.

Pursuant to the terms of the CRADA, as amended, the Company is required to make quarterly payments of $0.5 million to the
NCI for support of research activities. To the extent the Company licenses patent rights relating to a TIL-based product candidate, the
Company will be responsible for all patent-related expenses and fees, past and future, relating to the TIL-based product candidate. In
addition,  the  Company  may  be  required  to  supply  certain  test  articles,  including  TIL,  grown  and  processed  under  Current  Good
Manufacturing Practice (“cGMP”) conditions, suitable for use in clinical trials. The extended CRADA has a three-year term expiring in
August 2024. The Company or the NCI may unilaterally terminate the CRADA for any reason or for no reason at any time by providing
written  notice  at  least  60  days  before  the  desired  termination  date.  The  Company  recorded  costs  associated  with  the  CRADA  of  $2.0
million for each of the years ended December 31, 2023, 2022 and 2021, respectively, as research and development expenses.

Patent License Agreement Related to the Development and Manufacture of TIL Cell Therapies

The Company entered into an Exclusive Patent License Agreement (the “Patent License Agreement”) with the NIH, an agency of
the  U.S.  Public  Health  Service  within  the  Department  of  Health  and  Human  Services,  in  2011,  as  amended  in  2015.  Pursuant  to  the
Patent  License  Agreement,  as  amended,  the  NIH  granted  the  Company  licenses,  including  exclusive,  co-exclusive,  and  non-exclusive
licenses, to certain technologies relating to autologous tumor infiltrating lymphocyte adoptive cell therapy products for the treatment of
metastatic melanoma, lung, breast, bladder and HPV-positive cancers.

Effective May 6, 2021, the Company entered into an Amended and Restated Patent License Agreement with NIH, which included
the grant of additional exclusive, worldwide patent rights in the indications to interleukin-15 and interleukin-21 cytokine-tethered TIL
technology, and expanded the non-exclusive, worldwide field of use to all cancers. Effective August 1, 2022, the Company entered into a
Second  Amended  and  Restated  Patent  License  Agreement  with  NIH  to  include  additional  exclusive,  worldwide  patent  rights  to  TIL
products expressing interleukin-12, expanded rights to TIL selection technologies previously licensed under the Exclusive Patent License
Agreement below, and additional non-exclusive, worldwide patent rights to certain technologies related to enhancing TIL potency.

The Second Amended and Restated Patent License Agreement requires the Company to pay royalties based on a percentage of net
sales in jurisdictions where patent rights exist, which percentage can fall into a tier that may be less than one percent to mid-single digits
depending  upon  certain  events,  including  the  exclusivity  of  the  rights,  and  the  Company  expects  lower  overall  royalty  payments  as  a
result.  The  Company  also  agreed  to  potential  milestone  payments  on  the  achievement  of  certain  clinical,  regulatory,  and  commercial
sales milestones for each of the indications and other direct costs incurred by the NIH pursuant to the Second Amended and Restated
Patent  License  Agreement.  The  Company  anticipates  making  additional  payments  that  could  range  from  several  hundred  thousand
dollars  to  the  mid-single-digit  millions  of  dollars  in  conjunction  with  certain  development  milestones,  the  approval  of  a  BLA  or  its
foreign equivalent, or the first U.S. and foreign commercial sales of any of our product candidates covered by the Second Amended and
Restated Patent License Agreement. The term of the Second Amended and Restated Patent License Agreement continues until the expiry
of  the  last-to-expire  patent  rights  licensed  thereunder,  and  the  agreement  contains  standard  termination  provisions.  The  Company
recorded milestone costs associated with the Second Amended and Restated Patent License Agreement, specifically for the completion
of  the  first  licensee-sponsored  Phase  2  trial  of  $0.6  million  for  the  year  ended  December  31,  2023.  In  addition,  with  the  approval  of
Amtagvi™, we will be required to remit $1.5 million within 60 days of the approval date in accordance with the requirements of the
Second Amended and Restated Patent License Agreement. No expenses were recorded for the years ended December 31, 2022 and 2021,
respectively.

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IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Exclusive Patent License Agreement Related to TIL Selection

On  February  10,  2015,  the  Company  entered  into  an  exclusive  patent  license  agreement  (the  “Exclusive  Patent  License
Agreement”)  with  the  NIH  under  which  the  Company  received  an  exclusive,  worldwide  license  under  the  selected  TIL  patents.  This
license was superseded and replaced by the Second Amended and Restated Patent License Agreement.

H. Lee Moffitt Cancer Center

Research Collaboration and Clinical Grant Agreements with Moffitt

In June 2020, the Company entered into a Sponsored Research Agreement (the “Research Agreement”) with the H. Lee Moffitt
Cancer  Center  (“Moffitt”),  with  a  term  that  ends  either  upon  completion  of  the  research  thereunder  or  on  July  1,  2022,  whichever  is
sooner.  In  June  2022,  this  agreement  was  extended  until  the  later  of  December  19,  2022  or  a  mutually  acceptable  completion  of  the
Research Agreement, which was expected in mid-2023. In August 2023, this agreement was extended until September 2023, at which
point  it  expired.  In  December  2023,  this  agreement  was  extended  until  the  later  of  November  30,  2024  or  a  mutually  agreed
determination of the completion of the Research Agreement. The Company recorded research and development costs of $0.2 million,
$0.6 million and $0.3 million for each of the years ended December 31, 2023, 2022 and 2021, respectively.

In December 2016, the Company entered into a clinical grant agreement with Moffitt to support an ongoing clinical trial at Moffitt
that  combines  TIL  cell  therapy  with  nivolumab  for  the  treatment  of  patients  with  metastatic  melanoma.  In  June  2017,  the  Company
entered into a second clinical grant agreement with Moffitt to support a new clinical trial at Moffitt that combines TIL cell therapy with
nivolumab for the treatment of patients with non-small cell lung cancer, under which the Company obtained a non-exclusive, royalty-free
license to any new Moffitt inventions made in the performance of the agreement. Under both clinical grant agreements with Moffit, the
Company  has  non-exclusive  rights  to  clinical  data  arising  from  the  respective  clinical  trials,  which  are  now  closed.  No  expense  was
recorded  for  the  years  ended  December  31,  2023,  and  for  the  year  ended  December  31,  2022  and  2021  the  Company  recorded  $0.1
million of research and development costs, in connection with the research collaboration and clinical grant agreements with Moffitt.

Exclusive License Agreements with Moffitt

The  Company  entered  into  a  license  agreement  with  Moffitt  (the  “First  Moffitt  License”),  effective  as  of  June  28,  2014,  under
which the Company received a worldwide license to Moffitt’s rights to patent-pending and patented technologies related to methods for
improving TIL for adoptive cell therapy using toll-like receptor agonists. Unless earlier terminated, the term of the license extends until
the earlier of the expiration of the last issued patent related to the licensed technology or 20 years after the effective date of the license
agreement.

Pursuant  to  the  First  Moffitt  License,  the  Company  paid  an  upfront  licensing  fee  in  the  amount  of  $0.1  million,  which  was
recorded  as  research  and  development  expense.  A  patent  issuance  fee  will  also  be  payable  under  the  First  Moffitt  License,  upon  the
issuance of the first U.S. patent covering the subject technology. In addition, the Company agreed to pay milestone license fees upon
completion  of  specified  milestones,  customary  royalties  based  on  a  specified  percentage  of  net  sales  (which  percentage  is  in  the  low
single digits) and sublicensing payments, as applicable, and annual minimum royalties beginning with the first sale of products based on
the licensed technologies, which minimum royalties will be credited against the percentage royalty payments otherwise payable in that
year.  The  Company  will  also  be  responsible  for  all  costs  associated  with  the  preparation,  filing,  maintenance  and  prosecution  of  the
patent applications and patents covered by the First Moffitt License related to the treatment of any cancers in the U.S., Europe and Japan
and in other countries designated by the Company in agreement with Moffitt. No expenses were recorded for the First Moffitt License for
the years ended December 31, 2023, 2022, and 2021.

The Company entered into a second license agreement with Moffitt effective as of May 7, 2018 (the “Second Moffitt License”),
under which the Company received a license to Moffitt’s rights to patent-pending technologies related to the use of 4-1BB agonists in
conjunction  with  TIL  manufacturing  processes  and  therapies.  Pursuant  to  the  Second  Moffitt  License,  the  Company  paid  an  upfront
licensing  fee  in  the  amount  of  $0.1  million  in  2018.  An  annual  license  maintenance  fee  is  also  payable  commencing  on  the  first
anniversary of the effective date. The Company agreed to pay an annual commercial use payment for each indication for which a first
sale has occurred, which in the aggregate amounts to up to $0.4 million a year. The Company recorded $0.1 million, $0.2 million and
$0.1 million for the years ended December 31, 2023, 2022 and 2021, respectively, as research and development expenses in connection
with this agreement.

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IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The Company subsequently exercised an option to exclusively license Moffitt’s rights to patent pending technologies related to the
use of tumor digests in conjunction with TIL manufacturing processes and therapies and entered into an amended and restated Second
Moffitt License in October 2021 (the “Amended & Restated Second Moffit License”), to include these rights. Pursuant to the Amended
&  Restated  Second  Moffitt  License,  the  Company  paid  an  upfront  licensing  fee  in  the  amount  of  $0.2  million  in  2021,  which  was
recorded  as  research  and  development  expense.  In  addition,  the  Company  agreed  to  pay  an  annual  commercial  use  payment  for  each
indication for which a first sale has occurred for products relating to the use of 4-1BB agonists and for products relating to the use of
tumor digests covered by the license.

The University of Texas M.D. Anderson Cancer Center

Strategic Alliance Agreement

On April 17, 2017, the Company entered into a Strategic Alliance Agreement (the “SAA”) with The University of Texas M.D.
Anderson  Cancer  Center  (“MDACC”)  under  which  the  Company  and  MDACC  agreed  to  conduct  clinical  and  preclinical  research
studies. The Company agreed in the SAA to provide total funding not to exceed approximately $14.2 million for the performance of the
multi-year studies under the SAA, of which approximately $5.3 million has been funded cumulatively through December 31, 2023 and
has  been  recorded  as  research  and  development  expense.  In  return,  the  Company  acquired  all  rights  to  inventions  resulting  from  the
studies  and  has  been  granted  a  non-exclusive,  sub-licensable,  royalty-free,  and  perpetual  license  to  specified  background  intellectual
property  of  MDACC  reasonably  necessary  to  exploit,  including  the  commercialization  thereof.  The  Company  has  also  been  granted
certain rights in clinical data generated by MDACC outside of the clinical trials to be performed under the SAA. The SAA’s term shall
continue in effect until the later of the fourth anniversary of the SAA or the completion or termination of the research and receipt by the
Company of all deliverables due from MDACC thereunder. The Company recorded zero, $0.2 million and $0.5 million associated with
the SAA for the years ended December 31, 2023, 2022 and 2021 as research and development expenses, respectively.

WuXi Advanced Therapies, Inc.

First WuXi Manufacturing and Services Agreement

In November 2016, the Company entered into a three-year manufacturing and services agreement (the “First Wuxi MSA”) with
WuXi Advanced Therapies, Inc. (“WuXi”) pursuant to which WuXi agreed to provide manufacturing and other services, which has since
been amended and assigned to its subsidiary Iovance Biotherapeutics Manufacturing LLC. Under the First WuXi MSA, the Company
entered into two statements of work for two cGMP manufacturing suites to be operated by WuXi for the Company. The terms of one of
these statements of work expired in December 2022.

Second WuXi Manufacturing and Services Agreement

In  October  2022,  the  Company’s  subsidiary  Iovance  Biotherapeutics  Manufacturing  LLC  entered  into  an  additional  three-year
manufacturing and services agreement (the “Second WuXi MSA”) with WuXi and its parent company WuXi Apptec, Co. Ltd pursuant to
which  WuXi  agreed  to  provide  commercial  and  clinical  manufacturing  services  and  related  testing  services.  Under  the  Second  WuXi
MSA, the Company entered into a statement of work for the two cGMP manufacturing suites to be operated by WuXi for the Company.
Both  suites  are  expected  to  be  capable  of  being  used  for  the  commercial  and  clinical  manufacture  of  the  Company’s  products.  The
Second WuXi MSA and its related statement of work will supersede the statements of work under the First WuXi MSA with respect to
commercial and clinical manufacturing and the two manufacturing suites. Certain other statements of work for related services will also
be covered by the Second WuXi MSA. The First WuXi MSA addressed development services provided by WuXi to the Company. Prior
to regulatory approval, or if the Company experiences a material adverse event, the Company may unilaterally terminate the statement of
work for commercial and clinical manufacturing under the Second WuXi MSA at any time by providing written notice of at least 120
days.  Post  regulatory  approval,  the  Company  may  unilaterally  terminate  the  statement  of  work  for  commercial  and  clinical
manufacturing with written notice of 15 month in year 1 of the term, written notice of 9 months in year 2 of the term, and written notice
of 6 months in year 3 of the term. If WuXi fails a pre-licensing inspection and does not address any related issues within 90 days of
receipt of the FDA response letter, the Company may either terminate the statement of work for commercial and clinical manufacturing
under the Second WuXi MSA immediately or shorten the term of this statement of work to June 30, 2024. The Company recorded costs
associated with agreements with WuXi of $17.3 million, $14.2 million, and $17.5 million for the years ended December 31, 2023, 2022,
and 2021 respectively, as research and development expenses.

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Cellectis S.A.

IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

On December 31, 2019, the Company entered into a research collaboration and exclusive worldwide license agreement whereby
the  Company  will  license  gene-editing  technology  from  Cellectis  S.A.  (“Cellectis”),  a  clinical-stage  biopharmaceutical  company,  to
develop TIL cell therapies that have been genetically edited, including a PD-1 inactivated product that the Company refers to as IOV-
4001. Financial terms of the license include annual license payments and development, regulatory and sales milestone payments from the
Company to Cellectis, as well as royalty payments based on net sales of TALEN®-modified TIL products. The Company recorded costs
associated  with  the  license  agreement  with  Cellectis  of  $0.4  million  for  each  of  the  years  ended  December  31,  2023,  2022,  and  2021
respectively as research and development expense.

Novartis Pharma AG

On January 9, 2020, the Company obtained a license from Novartis Pharma AG (“Novartis”) to develop and commercialize an
antibody  cytokine  engrafted  protein,  which  the  Company  refers  to  as  IOV-3001.  Under  the  agreement,  the  Company  paid  an  upfront
payment to Novartis and may pay future milestones related to initiation of patient dosing in various phases of clinical development for
IOV-3001 and approval of the product in the U.S., EU and Japan. Novartis is also entitled to low-to-mid single digit percentage royalties
from commercial sales of the product. The Company recorded costs associated with the license agreement from Novartis of $10.0 million
as research and development expenses for the year ended December 31, 2020. No expenses were recorded for the years ended December
31, 2023 and 2022.

On May 18, 2023, as part of the completion of the Acquisition, the Company inherited two historical asset purchase agreements,
one historical master cell bank license and working cell bank transfer agreement and one historical license agreement from Clinigen with
Novartis AG, Novartis Pharma AG and Novartis Vaccines and Diagnostics, Inc. pursuant to which, among other things, the Company
may be required to make future milestone payments based on net sales (as defined in the relevant underlying agreements) in the United
States  and  the  rest  of  world,  which  includes  any  and  all  sales  outside  of  the  United  States.  The  maximum  amount  of  these  milestone
payments payable under these agreements is $30.0 million upon reaching several certain net sales amounts in the United States and $15.0
million  upon  reaching  several  certain  net  sales  amounts  in  the  rest  of  the  world,  of  which  25%  of  each  milestone  payment  will  be
reimbursed  by  Clinigen  by  deduction  from  the  deferred  consideration  due  under  the  Option  Agreement  in  the  period  such  milestone
payment  is  made.  To  date,  the  net  sales  milestones  have  not  been  achieved,  and,  therefore,  no  payments  were  made  under  these
agreements for the year ended December 31, 2023.

Boehringer Ingelheim Biopharmaceuticals GmbH

On  May  18,  2023  as  part  of  the  completion  of  the  Acquisition,  the  Company  inherited  a  manufacturing  and  supply  agreement
from  Clinigen  with  Boehringer  Ingelheim  Biopharmaceuticals  GmbH  (“BI”)  pursuant  to  which  BI  will  carry  out  the  processing,
manufacturing  and  supply  of  Proleukin®  in  unlabeled  vials.  The  term  of  this  agreement  is  through  October  2025,  with  automatic
renewals for a period of two years unless terminated as permitted by the contract. Under this agreement, the Company must purchase a
minimum number of vials each year at fixed prices determined by vial batch size. The total estimated purchase obligations under this
agreement for the years ending December 31, 2024, 2025, 2026 and 2027, are $8.2 million, $11.4 million, $7.3 million, and $7.3 million,
respectively.

NOTE 14. LEASES

Operating Leases

The  Company  leases  corporate  office  space  in  California,  including  49,918  square  feet  for  its  current  corporate  headquarters’
office  space  in  San  Carlos,  California,  manufacturing,  research  and  development  lab  facilities  and  office  space  in  Philadelphia,
Pennsylvania, including 136,000 square feet of commercial manufacturing and lab space at the iCTC, and research and development lab
facilities in Tampa, Florida. The determination if an arrangement is a lease occurs at inception, and for leases with terms greater than 12
months, the Company records a related right-of-use asset and lease liability at the present value of lease payments over the term. Many
leases include fixed rental escalation clauses, renewal options and/or termination options that are factored into the determination of lease
payments  when  appropriate.  The  Company’s  leases  do  not  provide  an  implicit  rate,  and  thus  the  Company  estimated  the  incremental
borrowing rate in calculating the present value of the lease payments.

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IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The  Company’s  leases  have  remaining  lease  terms  that  range  from  less  than  one  year  to  approximately  20  years.  Some  of  our
leases include one or more options to renew with renewal terms that can extend the lease for additional years, or options to terminate the
leases,  both  at  the  Company’s  discretion.  The  Company’s  leases  may  include  options  to  extend  or  terminate  the  lease,  which  is
considered in the lease term when it is reasonably certain that the Company will exercise any such options. Lease expense for minimum
lease payments is recognized on a straight-line basis based on the fixed components of a lease arrangement.

Variable lease cost is determined based on performance or usage in accordance with the contractual agreements, and not based on

an index or rate. Such costs that are not fixed in nature are recognized as incurred.

The Company also leases certain furniture and equipment that has a lease term of 12 months or less. Since the lease agreement do
not include an option to purchase the underlying asset, the Company elected not to apply the recognition requirements of Topic 842 for
short-term leases, however, the lease costs that pertain to the short-term leases are disclosed in the components of lease costs table below.

Manufacturing Contracts

The  Company  uses  contract  manufacturing  organizations  (collectively  the  “CMOs”  and  each  a  “CMO”)  to  manufacture  and
supply TILs for clinical and commercial purposes. The CMO contractual obligations consist of the use of manufacturing facilities and
minimum fixed commitment fees, such as personnel, general support fees, and minimum production or material fees. In addition to the
minimum fixed commitment fees, the CMO contractual obligations include variable costs such as production and material costs in excess
of the minimum quantity specified in each CMO agreement. During the term of each CMO agreement, the Company has access to and
control of the use of a dedicated suite in each of the CMOs’ facilities for manufacturing activities. The contracts with CMOs generally
contain embedded operating leases based on the fact that the suites are used for the Company’s production are implicitly identified, are
used exclusively by the Company during the contractual term of the arrangements, and the CMOs have no substantive contractual rights
to substitute the facilities used by the Company.

Further, the Company controls the use of the facilities by obtaining all of the economic benefits from the use of the facilities and
direct the use of the facilities throughout the period of use. The terms of the CMO contracts include options to terminate the lease with
advance notice of five to six months. The termination clauses and extension clauses are included in the calculation of the lease term for
each of the CMOs when it is reasonably certain that it will not exercise such options.

For  contracts  with  multiple  deliverables,  Topic  842  requires  the  Company  to  first  identify  a  lease  deliverable  and  non-lease
deliverable included in the arrangements, and then allocate the fixed contractual consideration to the lease deliverable(s) and the non-
lease  deliverable(s)  on  a  relative  standalone  selling  price  basis  to  determine  the  amount  of  operating  lease  right-of-use  assets  and
liabilities. The Company identified the use of a dedicated suite as a single lease deliverable, and related labor services as a single non-
lease  deliverable  in  each  of  the  CMO  arrangements.  Judgment  is  required  to  determine  the  relative  standalone  selling  price  of  each
deliverable as the observable standalone selling prices are not readily available. Therefore, management uses estimates and assumptions
in  determining  relative  standalone  selling  price  of  lease  of  a  suite  and  labor  service  using  information  that  includes  market  and  other
observable inputs to the extent possible.

The balance sheet classification of the Company’s right-of-use asset and lease liabilities was as follows (in thousands):

Operating lease right-of-use assets
Operating lease liabilities

Current portion included in current liabilities
Long-term portion included in non-current liabilities

Total operating lease liabilities

December 31, 
2023

December 31, 
2022

     $

62,515      $

73,015

7,777
67,085
74,862

$

12,587
71,859
84,446

$

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IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The  following  table  summarizes  components  of  lease  expenses,  which  were  included  in  total  expenses  in  the  Company’s
consolidated statements of operations, and other information related to our operating leases as follows (in thousands, except weighted-
average remaining lease terms and discount rates):

Operating lease cost
Variable lease cost
Short-term lease cost

Total lease cost

Other information
Cash paid for amounts included in the measurement of lease liabilities included in
cash flows from operations
Tenant improvement allowance received for amounts included in the measurement of
lease liabilities included in cash flows from operations
Right-of-use assets obtained from entering new leases
Increase in right-of-use assets from lease modifications
Weighted-average remaining lease terms (years)
Weighted-average discount rates

For the Year
Ended
December 31, 2023

For the Year
Ended
December 31, 2022

$

$

$

$
$

17,786
7,629
335
25,750

16,871

—
177
1,033
13.09

$

$

$

$
$

17,657
5,447
154
23,258

14,209

6,432
553
15,304
12.90

7.4 %

7.5 %

As of December 31, 2023, maturities of the Company's operating lease liabilities were as follows (in thousands):

Year Ending December 31,
2024
2025
2026
2027
2028
Thereafter

Total lease payments

Less: Present value adjustment
Operating lease liabilities

Facility

leases

8,579
8,324
7,989
8,186
8,389
75,438
116,905
(46,254)
70,651

$

$

$

$

$

$

CMO
embedded

leases

4,349

$
—  
—  
—  
—  
—  
$

4,349
(138)
4,211

$

Total

12,928
8,324
7,989
8,186
8,389
75,438
121,254
(46,392)
74,862

For its corporate headquarters’ office, the lease agreement includes a tenant improvement allowance of $8.2 million. For the years
ended December 31, 2023 and 2022, the Company has received reimbursements associated with this tenant improvement allowance of
zero  and  $6.4  million,  respectively.  The  Company  does  not  expect  to  receive  additional  reimbursement  associated  with  this  tenant
improvement allowance.  

NOTE 15. LEGAL PROCEEDINGS

Derivative Lawsuit. On December 11, 2020, a purported stockholder derivative complaint was filed by plaintiff Leo Shumacher
against the Company, as nominal defendant, and then current directors, as defendants, in the Court of Chancery in the State of Delaware
(the “Court of Chancery”). The complaint alleges breach of fiduciary duty and a claim for unjust enrichment in connection with alleged
excessive compensation of certain non-executive directors of the Company and seeks unspecified damages on behalf of the Company.
The parties have agreed to a proposed settlement, which was submitted to the Court of Chancery on June 15, 2022. After a hearing on
November  17,  2022,  the  Court  of  Chancery  required  the  parties  to  take  additional  steps  before  it  would  approve  the  settlement.  The
Company, as nominal defendant, and its current directors, as defendants, answered the complaint on Feb. 3, 2023.

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IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Solomon  Capital,  LLC.  On  April  8,  2016,  a  lawsuit  (“the  First  Solomon  Suit”)  titled  Solomon  Capital,  LLC,  Solomon  Capital
401(K)  Trust,  Solomon  Sharbat  and  Shelhav  Raff  v.  Lion  Biotechnologies,  Inc.  was  filed  by  Solomon  Capital,  LLC,  Solomon  Capital
401(k) Trust, Solomon Sharbat and Shelhav Raff (“Solomon Plaintiffs”) against the Company in the Supreme Court of the State of New
York,  County  of  New  York  (index  no.  651881/2016)  (the  “court”).  The  Solomon  Plaintiffs  allege  that,  between  June  and  November
2012, they provided the Company $0.1 million and that they advanced and paid on behalf of the Company an additional $0.2 million.

The  complaint  further  alleges  that  the  Company  agreed  to  (i)  provide  them  with  promissory  notes  totaling  $0.2  million,  plus
interest,  (ii)  issue  a  total  of  1,110  shares  to  the  Solomon  Plaintiffs  (after  the  1-for-100  reverse  split  of  the  Company’s  common  stock
effected in March 2013) (the “Equity Claim”), and (iii) allow the Solomon Plaintiffs to convert the foregoing funds into its securities in
the  next  financing  of  the  Company  on  the  same  terms  offered  to  other  investors,  which  Solomon  Plaintiffs  allege,  should  have  given
them the right to convert their advances and payments into shares of the Company's common stock in the restructuring that took effect in
May  2013.  Based  on  the  foregoing,  the  Solomon  Plaintiffs  allege  causes  for  breach  of  contract  and  unjust  enrichment  and  demand
judgment against the Company in an unspecified amount exceeding $1.5 million, plus interest. On June 3, 2016, the Company filed an
answer  and  counterclaims  in  the  lawsuits.  The  Company  has  asserted  counterclaims  for  fraudulent  inducement,  fraudulent
misrepresentation,  fraudulent  concealment,  breach  of  fiduciary  duty,  and  breach  of  contract,  alleging  principally  that  the  counterclaim
defendants  misrepresented  their  qualifications  and  failed  to  disclose  that  Solomon  Sharbat  was  the  subject  of  an  investigation  by  the
Financial Industry Regulatory Authority (“FINRA”) that resulted in the loss of his FINRA license.

In its counterclaims, the Company is seeking damages in an amount exceeding $0.5 million and an order rescinding any and all
agreements that the Solomon Plaintiffs contend entitled them to obtain shares of Company stock. On May 12, 2020, the court granted the
Company’s  motion  for  summary  judgment  limiting  the  Solomon  Plaintiffs’  damages  for  the  Equity  Claim  to  $47,420.  The  Solomon
Plaintiffs filed a notice of appeal of this summary judgment on June 9, 2020. On July 2, 2020, the court granted the Company’s motion to
dismiss  the  First  Solomon  Suit  for  want  of  prosecution.  On  January  4,  2021,  the  court  granted  the  Solomon  Plaintiffs  motion  for
reconsideration, and reinstituted the case. On January 15, 2021, the Company filed a notice of appeal of the court’s grant of the Solomon
Plaintiffs motion for reconsideration. On May 11, 2021, the Appellate Division upheld the court’s grant of the Solomon Plaintiffs’ motion
for reconsideration of the dismissal of the First Solomon Suit for want of prosecution.

On  September  27,  2019,  the  Solomon  Plaintiffs  filed  a  new  lawsuit  (through  new  legal  counsel)  (“the  Second  Solomon  Suit”)
titled Solomon Capital, LLC, Solomon Capital 401(K) Trust, Solomon Sharbat and Shelhav Raff v. Iovance Biotherapeutics, Inc., f/k/a/
Lion Biotechnologies Inc. f/k/a/ Genesis Biopharma Inc., and Manish Singh in the Supreme Court of the State of New York, County of
New York (index no. 655668/2019). In the Second Solomon Suit, the Solomon Plaintiffs allege that they are third party beneficiaries of a
“finder’s  fee  agreement”  that  prior  management  entered  into  with  a  third  party  unlicensed  entity  in  2012  in  connection  with  seeking
financing, that an agreement or understanding existed between the Company and the plaintiffs that the plaintiffs would be paid fees and
commissions (in cash and stock) if they obtained financing for the Company, and that they directly and indirectly introduced investors to
the Company who invested in the Company, or were willing to invest in the Company. Finally, the Solomon Plaintiffs allege that they
were  promised  a  license  to  use  the  Company’s  technology  in  Israel.  The  plaintiffs  claim  that  the  Company  breached  the  foregoing
understandings, promises and agreements and, as a result, they are entitled to certain damages. The Solomon Plaintiffs also allege that
Manish  Singh,  the  Company’s  former  Chief  Executive  Officer,  committed  fraud  and  took  shares  belonging  to  them.  On  February  18,
2020, the Company filed a removal petition and removed the Second Solomon Suit to the U.S. District Court for the Southern District of
New York (the “District Court”), where the case has been assigned case no. 1:20-cv-1391. On May 22, 2020, the Company moved to
dismiss the Second Solomon Suit for lack of personal jurisdiction. On March 26, 2021, the District Court denied the Company’s motion
to dismiss for lack of personal jurisdiction. The Company filed a response to the complaint in the Second Solomon Suit on April 30,
2021. On May 26, 2021, the Company and Singh filed motions for judgment on the pleadings with respect to the second and third claims
asserted against the Company and all claims asserted against Singh, respectively, in the Second Solomon Suit. On January 5, 2022, the
District  Court  granted  the  Company’s  motions  for  judgement  on  the  pleadings,  dismissing  the  second  and  third  claims  against  the
Company  and  dismissing  all  claims  against  Singh.  On  January  4,  2023,  the  District  Court  granted  in  part  the  Company’s  motion  for
sanctions  against  the  Solomon  Plaintiffs  for  violating  Rule  11  of  the  Federal  Rules  of  Civil  Procedure,  in  a  decision  and  order  that
dismissed  the  Solomon  Plaintiffs’  first  claim  against  the  Company,  denied  the  Solomon  Plaintiffs’  motion  for  leave  to  amend  the
complaint,  and  ordered  the  Solomon  Plaintiffs  to  pay  the  Company’s  attorneys’  fees  incurred  in  connection  with  the  Rule  11  motion.
Following the District Court’s decision and order on the Rule 11 motion, only the Solomon Plaintiffs’ fifth and sixth claims, for unjust
enrichment and indemnification, respectively, remain pending against the Company. On October 26, 2023, the District Court granted the
Company’s  motion  for  summary  judgment  and  dismissed  the  Solomon  Plaintiffs’  fifth  and  sixth  claims.  On  October  27,  2023,  the
District Court entered judgment for the Company and closed the Second Solomon Suit. On November 10, 2023, the Company filed a
motion for attorneys’ fees as the prevailing party in the action. On December 1, 2023, the Solomon Plaintiffs filed a notice of appeal to

F-36

Table of Contents

IOVANCE BIOTHERAPEUTICS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

the  U.S.  Court  of  Appeals  for  the  Second  Circuit,  appealing  the  District  Court’s  orders  (a)  granting  the  motions  for  judgment  on  the
pleadings filed on behalf of Singh and the Company, (b) granting the Company’s Rule 11 motion, (c) denying the Solomon Plaintiffs’
motions to compel discovery and re-open discovery, and (d) granting the Company’s summary judgment motion. On December 22, 2023,
the Company filed a motion for an order requiring the Solomon Plaintiffs to post an appeal bond, to ensure payment of the Company’s
appellate fees and costs should the Company prevail on the appeal.

The Company intends to vigorously defend these complaints and pursue its counterclaims, as applicable. At the current stage of
the litigation, in both the First Solomon Suit and the Second Solomon Suit, it is not possible to estimate the amount or range of possible
loss that might result from an adverse judgment or a settlement of these matters.  

The  Company  has  been  and  may  continue  to  be  involved,  from  time  to  time,  in  legal  proceedings  and  claims  arising  in  the
ordinary  course  of  its  business.  Such  matters  are  subject  to  many  uncertainties  and  outcomes  are  not  predictable  with  assurance.  The
Company accrues amounts, to the extent they can be reasonably estimated, that it believes are adequate to address any liabilities related
to legal proceedings and other loss contingencies that it believes will result in a probable loss. While there can be no assurances as to the
ultimate outcome of any legal proceeding or other loss contingency involving the Company, management does not believe any pending
matter will be resolved in a manner that would have a material adverse effect on its financial position, results of operations or cash flows.

NOTE 16. LONG-TERM NOTE PAYABLE

On January 26, 2021, the Company entered into a Loan Note and accompanying Economic Stimulus Program Loan Agreement
with PIDC – Local Development Corporation, a Pennsylvania nonprofit corporation (the “Lender”), pursuant to which the Lender agreed
to make a loan (the “Job Creation Loan”) to the Company in a principal amount of $1.0 million. The Job Creation Loan will be for a term
of five years starting on February 18, 2021, the date of the issuance of a final certificate of occupancy for the Company’s leased premises
in Philadelphia, Pennsylvania. The Job Creation Loan is unsecured, bears no interest, and will be forgiven by the Lender in the amount of
$2,000 per full-time or “full time equivalent” (defined as two or more part time employees whose working hours total at least 35 hours a
week) employee with an average salary of at least $80,000 (“FT Employees”), up to a maximum amount equal to the amount of the Job
Creation Loan, as calculated based on the average number of FT Employees employed at the Company’s premises during the period of
the 5-year term beginning on the date that is nine months prior to the maturity date and ending on the maturity date. If the Job Creation
Loan is not forgiven in full by the maturity date, the remaining balance of the loan not forgiven will become payable on the maturity
date. The Loan Note includes customary events of default. Upon the occurrence of an event of default, the Lender will have the right to
exercise remedies against the Company, including the right to require immediate payment of all amounts due under the Loan Note.

The  Company  concluded  that  it  is  not  reasonably  assured  that  all  or  a  portion  of  the  loan  will  be  forgiven  as  of  December  31,
2023, and therefore accounted for the Job Creation Loan as debt in accordance with ASC Topic 470, Debt, as opposed to an in-substance
government grant, and classified as a long-term debt in its consolidated balance sheets as of December 31, 2023 and 2022.

NOTE 17. SUBSEQUENT EVENTS

FDA Approval of Amtagvi™ (lifileucel)

On February 16, 2024, the Company announced that the FDA approved Amtagvi™ (lifileucel), a tumor-derived autologous T cell

immunotherapy indicated for the treatment of adult patients with unresectable or metastatic melanoma previously treated with a PD-1
blocking antibody, and if BRAF V600 mutation positive, a BRAF inhibitor with or without a MEK inhibitor. This indication is approved
under accelerated approval based on an endpoint of ORR.

Public Offering

On February 22, 2024, the Company closed the sale of an aggregate of 23,014,000 shares of its common stock, pursuant to an
underwriting agreement with Jefferies, Barclays Capital Inc., and Goldman Sachs & Co. LLC at a public offering price of $9.15 per
share, before underwriting discounts and commissions. The total estimated net proceeds to the Company from the offering are expected
to be approximately $197.1 million after deducting underwriting discounts and commissions and estimated offering expenses payable by
the Company.

F-37

Exhibit 19.1

Iovance Biotherapeutics, Inc.

Insider Trading Policy

I.

INTRODUCTION

It is the policy of Iovance Biotechnologies, Inc. (the “Company”) that its employees and members of its
Board of Directors comply fully with the insider trading securities laws and regulations of the United States, of
the several states, and of foreign jurisdictions, wherever they are applicable.

It is illegal for any person, either personally or on behalf of others, to trade in securities on the basis of
material  nonpublic  information.    It  is  also  illegal  to  communicate  (to  “tip”)  material  nonpublic  information  to
others so that they may trade in securities on the basis of such information.  These illegal activities are commonly
referred to as “insider trading.”  Penalties for insider trading violations include civil fines of up to three times the
profit  gained  or  loss  avoided  by  the  trading,  criminal  fines  of  up  to  $1  million,  and  imprisonment  for  up  to  10
years.   There  may  also  be  liability  to  those  damaged  by  the  trading.   A  company  whose  employee  violates  the
insider trading prohibitions may be liable for a civil fine of up to the greater of $1 million or three times the profit
gained or loss avoided as a result of the employee’s insider trading violation.

II.

SCOPE

This  insider  trading  policy  (this  “Policy”)  covers  all  insiders,  which  includes  all  directors,  officers  and
employees  of  the  Company,  their  family  members  and  any  corporations,  partnerships,  trusts  or  other  entities
owned or controlled by the foregoing persons and any trusts in which such persons are trustees or beneficiaries or
any corporation in which such persons hold more than 20% of the equity or voting rights (collectively referred to
as “Insiders”), and any outsiders whom the Board of Directors, Chief Executive Officer, Chief Financial Officer
or  General  Counsel  may  designate  as  Insiders  because  they  have  or  may  gain  access  to  material  nonpublic
information concerning the Company.  For purposes of this Policy, “family members” include people who live
with Company directors, officers and/or employees, or are financially dependent on Company directors, officers
and/or  employees,  and  also  include  those  whose  transactions  in  securities  are  directed  by  Company  directors,
officers  and/or  employees  or  are  subject  to  the  influence  or  control  of  Company  directors,  officers  and/or
employees.    This  policy  also  applies  to  all  third  party  consultants  engaged  by  the  Company  on  a  direct  or
individual basis (“Consultants”), but does not apply to third party consultants engaged by the Company through a
consultancy  firm  or  other  similar  entity  which  may  be  fairly  characterized  as  routinely  providing  consultancy
services to one or more companies as part of its business model, in which case, any consulting agreement with
such firms shall contain appropriate

insider  trading  provisions  as  approved  by  the  General  Counsel.    The  determination  as  to  whether  this  Policy
applies to any particular consultant will be made by the General Counsel at the time of engaging such consultant’s
services.  Each director, officer, employee and Consultant is personally responsible for the actions of their family
members and other persons with whom they have a relationship who are subject to this Policy, including any pre-
clearances required.

This  Policy  will  be  delivered  to  all  directors,  officers,  employees,  Consultants  and  designated  outsiders
upon  its  adoption  by  the  Company,  and  to  all  new  directors,  officers,  employees,  Consultants  and  designated
outsiders at the start of their employment or relationship with the Company.  Upon first receiving a copy of this
Policy or any revised versions, each Insider, Consultant and designated outsider must sign an acknowledgement
that he or she has received a copy and agrees to comply with this Policy’s terms.  Officers, employees, directors,
certain designated Insiders, Consultants and designated outsiders may be required to certify compliance with this
Policy on an annual basis.

Conduct that violates or does not comply with this statement is outside the scope of employment for the
Company’s employees.  Any employee of the Company who fails to comply with this Policy will be subject to
appropriate disciplinary action, which may include suspension or termination of employment.

III.

POLICY

A.

Definition of Material Nonpublic Information

This Policy, applicable to all personnel, prohibits trading in securities, tipping others who might trade, and
various  other  transactions  depending  on  your  role  with  the  Company  (see  Section  III(C)  –  “Pre-clearance
Procedures for Insiders – Prohibited Transactions for Covered Persons”), when you know of material nonpublic
information.

What information is “material”?

All  information  that  a  reasonable  investor  might  consider  important  in  deciding  to  buy,  sell  or  hold
securities is considered “material.”  Either positive or negative information may be material.  Information that is
likely to affect the price of securities almost always is material. Examples of some types of material information
are:

● information regarding the results of the Company’s research and development activities, including
the results of clinical trials for the Company’s product candidates or the results from pre-clinical
experiments and screenings;

● information regarding the status or pace of enrollment of clinical trials for the Company’s product

candidates;

● information  regarding  the  status  of  regulatory  approval  or  the  regulatory  process  for  any  of  the

Company’s product candidates or products of any of the Company’s collaboration partners;

● negotiating,  obtaining  or  losing  important  contracts,  including,  without  limitation,  licenses  and

strategic alliances with pharmaceutical companies, contract

manufacturing  organizations,  biotechnology  companies,  academic  institutions,  foundations  or
government agencies;

● scientific discoveries, including new product candidates, the mechanism of action of our product

candidates, new formulations of our product candidates, etc.;

● progress  in  obtaining  any  patents  or  other  intellectual  property  rights  and  important  product

developments;

● information regarding the sales, marketing and manufacturing of any of the Company’s products;

● financial results for the quarter or the year and any financial forecasts;

● possible public or private offerings, mergers, acquisitions, joint ventures, collaborations and other

purchases and sales of companies and investments in companies;

● major financial developments or major personnel changes; and

● major litigation developments.

Remember, if your securities transactions become the subject of scrutiny, they will be reviewed after the
fact  with  the  benefit  of  20/20  hindsight.    As  a  result,  in  determining  whether  to  approve  your  transactions  in
Company securities as provided below, we may consider how regulators and others might view your transactions
with hindsight.

If you are unsure whether information of which you are aware is material or nonpublic, you should

consult with the Chief Financial Officer.

What is nonpublic information?

Information is considered to be nonpublic unless it has been effectively disclosed to the public and there
has been adequate time for the market as a whole to digest such information.  Examples of effective disclosure
include public filings by the Company with the U.S. Securities and Exchange Commission (the “SEC”), Company
press  releases,  Company  meetings  with  members  of  the  press  and  the  public  and  Company  conference  calls  on
webcasts that are open to the public.  Generally, no transactions should take place until at least two (2) business
days after the disclosure of material information by the Company.  Further restrictions for Covered Persons (as
defined below) are set forth in Section III(C).

Prohibited transactions.

When  you  know  material  information  about  the  Company  that  has  not  been  made  public,  this  Policy

expressly prohibits the following activities:

● trading in the Company’s securities or derivatives of the Company’s securities;

● transferring  ownership  of  Company’s  securities  or  derivatives  of  the  Company’s  securities  in

exchange for value, including but not limited to monetizing transactions;

● having others trade for you in the Company’s securities or derivatives of the Company’s securities;

● disclosing such information to anyone else who might then trade; and

● assisting anyone in any of the foregoing activities.

For purposes of this policy, a “derivative of the Company’s securities” shall mean any contract or other
right  with  a  value  that  is  based  on  the  value  of  the  Company’s  securities,  including,  but  not  limited  to,  short
positions, such as options to sell the Company’s securities, long positions, such as options to buy the Company’s
securities, and hedging positions.  For purposes of this policy, a “hedging position” is any position that includes
both short and long positions in the Company’s securities.  For purposes of this policy, a “short position”  shall
mean any contract or other right with a value that is based on the value of the Company’s securities and that may
benefit from a decline in the Company’s stock price, such as an option to sell the Company’s securities (a “put
option”).  For purposes of this policy, a “long position” shall mean any contract or other right with a value that is
based  on  the  value  of  the  Company’s  securities  and  that  may  benefit  from  an  increase  in  the  Company’s  stock
price, such as an option to buy the Company’s securities (a “call option”).

Neither you nor anyone acting on your behalf nor anyone who learns the information from you can trade.
  This  prohibition  continues  whenever  and  for  as  long  as  the  information  is  material  and  nonpublic.    The
restrictions in this Policy apply to your spouse, your dependents and other members of your household.  You are
responsible for their compliance with this Policy.

Although  it  is  most  likely  that  any  material  nonpublic  information  you  might  learn  would  be  about  the
Company, these prohibitions also apply to trading in the securities of any company about which you have material
nonpublic information.

B.

Unauthorized Disclosure

As discussed above, the disclosure of material nonpublic information to others can lead to significant legal
difficulties.  Therefore, you should not discuss material nonpublic information about the Company with anyone,
including other employees, except as required in the performance of your regular duties.

In any instance in which such information is disclosed to outsiders, the Company shall take such steps as
are necessary to preserve the confidentiality of the information, including requiring the outsider to agree in writing
to comply with the terms of this Policy and/or to sign a confidentiality agreement.  All inquiries from outsiders
regarding  material  nonpublic 
the  Corporate
Communications & Investor Relations department of the Company.

the  Company  must  be  forwarded 

information  about 

to 

It is important that only specifically designated representatives of the Company discuss the Company and
information  about  the  Company  with  the  news  media,  securities  analysts  and  investors.    Inquiries  of  this  type
received by any employee should be referred to the Corporate Communications & Investor Relations department
of the Company.

The Company strongly discourages all Insiders and Consultants from giving trading advice concerning the
Company to third parties even when the Insiders and Consultants do not possess material nonpublic information
about the Company.

C.

Pre-clearance Procedures for Insiders and Consultants

Insiders  and  Consultants  must  obtain  written  pre-clearance  from  the  Chief  Financial  Officer  before
engaging in any personal transaction in Company securities after complying with the following procedures.  First,
a written request on the form attached hereto for pre-clearance  stating  the  number  of  Company  securities  to  be
purchased  or  sold  and  the  nature  of  the  transaction  (e.g.,  sale  or  purchase  in  the  open  market,  private  sale  or
purchase,  transfer  for  estate  planning  purposes,  charitable  contribution,  etc.)  must  be  submitted  to  the  Chief
Financial  Officer.    The  Chief  Financial  Officer  must  respond  in  writing  by  signing  the  form  or  responding  via
email.  You will generally receive a response within one (1) business day.  Unless a different period is specified,
clearance for sales or purchases on the open market is good only until the close of the stock market on the fifth
(5th) trading day following the day on which you received clearance, excluding the day you receive clearance.  For
purposes of counting the five-trading day period, a trading day is defined as any day in which The Nasdaq Global
Market is open to trading activity, and the first trading day after clearance is received is considered day one.  If
you have not executed your transaction within this period, you must again pre-clear your transaction.

Prohibited Transactions for Covered Persons

The following restrictions apply to all Covered Persons:

● Covered  Persons  who  purchase  Company  securities  may  not  sell  any  Company  securities  of  the

same class for at least six months after the purchase;

● Covered Persons may not sell the Company’s securities short;

● Covered Persons may not buy or sell puts or calls or other derivative securities on the Company’s

securities;

● Covered  Persons  may  not  hold  Company  securities  in  a  margin  account  or  pledge  Company

securities as collateral for a loan; and

● Covered Persons may not enter into hedging or monetization transactions or similar arrangements

with respect to Company securities.

“Covered Persons” include:

● each director of the Company;

● each officer of the Company who has been designated by the Board of Directors as an executive
officer  for  purposes  of  the  reporting  requirements  and  trading  restrictions  of  Section  16  of  the
Securities Exchange Act of 1934, as amended (the “Exchange Act”); and

● any  additional  persons  that  either  the  Board  of  Directors,  the  Chief  Financial  Officer  or  General
Counsel may designate from time to time as being subject to this Policy for Covered Persons by
delivering to such persons a written notice of designation.

Additionally,  in  connection  with  each  transaction  in  the  Company’s  securities,  Covered  Persons  are
required to ensure (i) compliance with SEC Rule 144, if required; and (ii) the preparation of the requisite Forms 3,
4 or 5 to be filed with the SEC.  Our legal counsel will assist you in the preparation and filing of such forms.

D.

Blackout Periods

The  period  beginning  with  the  last  day  of  the  last  calendar  month  of  each  quarter  and  ending  two  (2)
trading  days  following  the  date  of  public  disclosure  of  the  financial  results  for  that  quarter  (the  “Quarterly
Blackout  Period”)  is  a  particularly  sensitive  period  of  time  for  transactions  in  the  Company's  stock  from  the
perspective of compliance with applicable securities laws.  This sensitivity is due to the fact that officers, directors
and certain other employees and consultants will, during that period, often possess material nonpublic information
about the expected financial results for the quarter.  Except as set forth in Section IV, no Covered Person, Insider
or  Consultant  may  trade  in  Company  securities  during  a  Quarterly  Blackout  Period,  although  the  Board  of
Directors or Chief Financial Officer may waive the restriction if it is determined that such person does not possess
material nonpublic information.

The  Chief  Financial  Officer,  in  consultation  with  Company  management,  may,  from  time  to  time,
designate special blackout periods (“Special Blackout Periods” and together with a Quarterly Blackout Period, a
“Blackout Period”) during which trading in Company securities by all Covered Persons, Insiders and Consultants
shall be prohibited.

No Covered Person, Insider or Consultant may disclose to any outside third party that a Special Blackout

Period has been designated.

IV.

A.

EXCEPTIONS

Exception for Pre-approved 10b5-1 Plans

Trades in the Company’s securities that are executed pursuant to a 10b5-1 plan approved in advance by the
Company are not subject to the prohibition on trading on the basis of material nonpublic information contained in
this Policy or to the preclearance restrictions set forth above.

Components of a 10b5-1 Plan

Rule 10b5-1 under the Exchange Act provides an affirmative defense from insider trading liability under
the federal securities laws for trading plans that meet certain requirements.  In general, a 10b5-1 trading plan (a
“10b5-1 plan”) must be entered into before you are aware of

material nonpublic information.  Once the plan is adopted, you must not exercise any influence over the amount of
securities  to  be  traded,  the  price  at  which  they  are  to  be  traded  or  the  date  of  the  trade.    The  plan  must  either
specify (including by formula) the amount, pricing and timing of transactions in advance or delegate discretion on
those matters to an independent third party.

The Company requires that all 10b5-1 plans and any amendments to 10b5-1 plans be approved in writing
in  advance  by  the  Chief  Executive  Officer,  Chief  Financial  Officer  or  General  Counsel.   To  establish  a  10b5-1
plan, you must:

● Be an Insider;

● Contact the Company’s finance team at stockadmin@iovance.com at least 25 business days prior to
the  start  of  the  next  Blackout  Period  to  request  instructions  for  creating  a  10b5-1  plan  with  the
Company’s plan provider; and

● Submit  the  completed  10b5-1  plan  to  the  Company’s  finance  team,  including  all  exhibits  (in
accordance with the instructions provided to you), at least 20 business days prior to the start of the
next  Blackout  Period.  Plans  submitted  to  the  Company’s  finance  team  will  then  be  reviewed  to
ensure compliance with this policy and applicable securities laws.  Any person that submits a 10b5-
1  plan  to  the  Company’s  finance  team  for  review  acknowledges  that  approval  of  such  plan  for
submission to the Company’s plan provider is within the sole discretion of the Company, and that
the Company reserves the right to make any and all changes to the plan or to condition approval of
the plan upon the acceptance of one or more changes to the plan.

10b5-1 plans submitted to the Company’s finance team must be finalized and submitted to the Company’s
plan  provider  at  least  ten  (10)  business  days  prior  to  the  start  of  the  next  Blackout  Period,  and  must  be
countersigned  by  the  Company’s  plan  provider  at  least  one  (1)  business  day  prior  to  the  start  of  such  Blackout
Period (plans that are not submitted to or approved by the Company’s plan provider within this timeframe will not
become effective and will be deemed null and void, even if all of the other conditions of this section are satisfied.
 This applies to plans that are in process but have not yet been fully executed prior to the start of an unscheduled
Special Blackout Period).

Once you receive approval of your 10b5-1 plan, you do not need clearance for any of your trades under
such  plan  pursuant  to  Section  III.C  of  this  policy  (for  purposes  of  this  section,  the  pre-clearance  requirement
specified in Section III.C is deemed satisfied upon review and approval of your 10b5-1 plan by the Company, as
communicated to you by the Chief Financial Officer or General Counsel).

10b5-1  plans  may  only  be  adopted  or  amended  while  the  person  adopting  or  amending  the  plan  is  not

aware of any material nonpublic information and while there is not currently a Blackout Period in effect.

Notwithstanding  the  foregoing,  the  Company  may  withhold  or  condition  pre-clearance  of  any  proposed

10b5-1 plan (each, a “Proposed Plan”) for any reason, in the Company’s sole discretion.  Additionally:

1) The Company will not pre-clear a Proposed Plan if it concludes that the Proposed Plan:

a) Fails to comply with the requirements of Rule 10b5-1, as amended from time to time;

b) Would permit a transaction to occur before the later of (i) 90 days after adoption (including deemed
adoption) of the Proposed Plan or (ii) two (2) business days after disclosure of the issuer’s financial
results  in  a  Form  10-Q  or  Form  10-K  for  the  quarter  in  which  the  Proposed  Plan  was  adopted
(subject to a maximum of 120 days after adoption of the Proposed Plan);

c)

Is established during a Blackout Period, or the Insider is unable to represent to the satisfaction of
the Company that the Insider is not in possession of material nonpublic information regarding the
Company;

d) Lacks  appropriate  mechanisms  to  ensure  that  the  Insider  complies  with  all  rules  and  regulations,
including  Rule  144,  Rule  701,  Form  S-8,  and  Section  16  of  the  Exchange  Act,  applicable  to
securities transactions by the Insider;

e) Does not provide the Company the right to suspend all transactions under the Proposed Plan if the
Company,  in  its  sole  discretion,  deems  such  suspension  necessary  or  advisable,  including
suspensions to comply with any “lock-up” agreement the Company agrees to in connection with a
financing or other similar events;

f) Exposes the Company to liability under any other applicable state or federal rule, regulation or law;

g) Creates any appearance of impropriety;

h) Fails to meet guidelines established by the Company; or

i) Otherwise fails to satisfy the Company for any reason.

2) Any  modifications  to  or  deviations  from  a  10b5-1  Plan  are  deemed  to  be  the  Insider  entering  into  a
new 10b5-1 Plan and, accordingly, require pre-clearance of such modification or deviation at least five
(5) full trading days prior to entry into or modification of the 10b5-1 Plan and be accompanied by a
copy of the plan.

3) Any termination of a 10b5-1 Plan must be immediately reported to the Company’s finance team.  If an
Insider  has  pre-cleared  a  new  10b5-1  Plan  (the  “Second  Plan”)  intended  to  succeed  an  earlier  pre-
cleared  10b5-1  Plan  (the  “First  Plan”),  the  Insider  may  not  affirmatively  terminate  the  First  Plan
without  pre-clearance  at  least  five  (5)  full  trading  days  prior  to  such  termination  because  such
termination is deemed to be entering into the Second Plan.

4) Neither the Company nor any of the Company’s officers, employees or other representatives shall be

deemed, solely by their pre-clearance of a Proposed Plan, to

have represented that it complies with Rule 10b5-1 or to have assumed any liability or responsibility to
the Insider or any other party if the 10b5-1 Plan fails to comply with Rule 10b5-1.

5) Upon entering into or amending a 10b5-1 Plan, the Insider must promptly provide a copy of the plan to
the Company and, upon request, confirm the Company’s planned disclosure regarding the entry into or
termination of a plan (including the date of adoption or termination of the plan, duration of the plan,
and aggregate number of securities to be sold or purchased under the plan.

B.

Exception for Stock Plans, Gifts, and Divorce Decrees

The following are exceptions to Section III of this Policy:

1) Exercise  of  a  stock  option  granted  under  any  of  the  compensation  incentive  plans  approved  by  the
Company  (the  “Stock  Plans”).    Note  that  this  exception  does  not  include  a  subsequent  sale  of  the
shares acquired pursuant to the exercise of the option under the Stock Plans.

2) Acquisition  of  shares  under  any  stock  purchase  plan  approved  by  the  Company.    Note  that  this

exception does not apply to a subsequent sale of the acquired shares.

3) Any  surrender  of  shares  by  the  stockholder  to  the  Company  to  satisfy  the  stockholder’s  tax
withholding obligations as a result of the issuance of shares upon vesting of restricted stock units or
other  equity  awards  granted  under  the  Stock  Plans.    Note  that  this  exception  does  not  include  a
subsequent sale of the shares by the stockholder acquired upon vesting of restricted stock units granted
under the Stock Plans.

4) Bona fide gifts of securities are not deemed to be transactions for the purposes of this Policy.  Whether
a gift is truly bona fide will depend on the facts and circumstances surrounding each gift.  The more
unrelated the donee is to the donor, the more likely the gift would be considered “bona fide” and not a
“transaction.”  For example, gifts to charities, churches and service organizations would clearly not be
“transactions.”    On  the  other  hand,  gifts  to  dependent  children  followed  by  a  sale  of  the  “gift”
securities in close proximity to the time of the gift may imply some economic benefit to the donor and,
therefore, make the gift not bona fide.

5) Any surrender of vested shares by the stockholder pursuant to a final divorce decree and/or settlement

agreement.

V.

ADDITIONAL PROHIBITED TRANSACTIONS

The Company believes it is improper and inappropriate for Company personnel to trade in derivatives of
the Company’s securities.  Therefore, it is the Company’s policy that Covered Persons, Insiders and Consultants
are  prohibited  from  trading  in  derivatives  of  the  Company’s  securities,  which  prohibition  includes,  but  is  not
limited to, trading in short positions, such as put

options, trading in long positions, such as call options, and trading in hedging positions, under any circumstances.

VI.

CONFIDENTIAL INFORMATION

In  addition  to  the  Company’s  Insider  Trading  Policy,  the  Company  has  strict  policies  relating  to
safeguarding the confidentiality of its internal, proprietary information.  You should comply with these policies at
all times.  If you have any questions regarding these policies, please contact the Company’s legal department.

VII. REPORTING OF VIOLATIONS

Any Insider who violates this Policy or any federal or state laws governing insider trading or tipping, or
who knows of such violation by any other Insiders, must report the violation immediately to the Company’s legal
department  by  email  at  legal@iovance.com  or  by  contacting  Fred  Vogt,  General  Counsel,  by  email  at
fred.vogt@iovance.com  or  by  phone  at  610.715.7577.    Upon  learning  of  any  such  violation,  the  Company’s
General  Counsel  and  in-house  legal  department,  in  consultation  with  the  Board  of  Directors,  Chief  Executive
Officer, Chief Financial Officer and the Company’s outside legal counsel, will determine whether the Company
should  release  any  material  nonpublic  information,  or  whether  the  Company  should  report  the  violation  to  the
SEC, Nasdaq, or other appropriate governmental authority.

VIII. QUESTIONS ABOUT THIS POLICY

Compliance by all Covered Persons, Insiders and Consultants with this Policy is of the utmost importance
to  you  and  to  the  Company.    Please  direct  all  inquiries  regarding  this  Policy  to  Jean-Marc  Bellemin,  Chief
Financial Officer of the Company, by email at jean-marc.bellemin@iovance.com or by phone at 650.400.5345.

IX.

AMENDMENT

The Company may amend this Policy from time to time as it deems appropriate.

Your  failure  to  observe  this  Policy  could  lead  to  significant  legal  problems  and  have  other  serious

consequences, including termination of your employment.

ACKNOWLEDGEMENT OF RECEIPT

I hereby acknowledge that I have received a copy of the Iovance Biotherapeutics, Inc., Insider Trading Policy (this
“Policy”)  and  agree  to  comply  with  its  terms.    I  understand  that  violation  of  insider  trading  or  tipping  laws  or
regulations may subject me to severe civil and/or criminal penalties and that violation of the terms of this Policy
may subject me to discipline by Iovance Biotherapeutics, Inc. and its subsidiaries up to and including termination
for cause.

Signed:

Name
(please
print):

Date:

To:

Jean-Marc Bellemin, Chief Financial Officer of Iovance Biotherapeutics, Inc (“Iovance”).

NOTIFICATION OF PROPOSED TRADE

From:
Date:

(Please fill out that which is applicable)

(Name of Insider)

I  hereby notify the Chief  Financial  Officer  that  I  intend  to  exercise  ___________ (number) of options/warrants
(cross  out  the  inapplicable  word)  of  Iovance  common  stock  on  ___________  (date),  on  behalf  of
____________________________ (indicate in whose name the shares will be registered).

I hereby notify the Chief Financial Officer that I intend to buy/sell (cross out the inapplicable word) _________
of
stock 
number 
___________________________ (indicate on whose names the shares will be registered).

___________ 

common 

Iovance 

_(date) 

shares 

behalf 

on 

on 

of 

of 

Nature of the proposed trade: ____________________________________

In connection with the proposed trade, I hereby certify that:

1.

2.

I am not in possession of any “material nonpublic information” concerning Iovance, as defined in
Iovance’s “Insider Trading Policy” (the “Policy”).

To the best of my knowledge, the proposed trade does not violate the trading restrictions of Section
16 of the Securities Exchange Act of 1934, as amended, or Rule 144 of the Securities Act of 1933,
as amended.

I understand that if I trade while possessing such information or in violation of such trading restrictions, I may be
subject  to  severe  civil  and/or  criminal  penalties  and  may  be  subject  to  sanctions  by  Iovance  as  set  forth  in  the
Policy.

Submitted by

(Signature)

(Name)

(Title if signing on behalf of a corporation, partnership or
other such entity)

Reviewed and approved/disapproved by the Chief Financial Officer

Date:

Jean-Marc Bellemin
Chief Financial Officer

Exhibit 21.1

Subsidiaries Of The Company

Iovance Biotherapeutics GmbH, a company formed under the laws of Switzerland.

Iovance Biotherapeutics B.V., a company formed under the laws of The Netherlands.

Iovance Biotherapeutics Manufacturing LLC, a limited liability company formed under the laws of the
Commonwealth of Pennsylvania.

Iovance Biotherapeutics UK Ltd, a limited company formed under the laws of The United Kingdom.

Iovance Biotherapeutics UK SP Ltd, a limited company formed under the laws of The United Kingdom.

Iovance Biotherapeutics Canada Inc., a company formed under the laws of Canada.

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the following Registration Statements:

(1)

(2)

(3)

(4)
(5)

(6)

(7)

Registration Statements (Form S-3 Nos. 333-212373, 333-214073 and 333-272718) of Iovance Biotherapeutics, Inc. and in
the related Prospectuses,
Registration Statement (Form S-8 No. 333-205097) pertaining to the 2011 Equity Incentive Plan of Iovance
Biotherapeutics, Inc.,
Registration Statement (Form S-8 No. 333-214567) pertaining to the 2014 Equity Incentive Plan of Iovance
Biotherapeutics, Inc.,
Registration Statement (Form S-8 No. 333-217638) pertaining to Maria Fardis RSUs of Iovance Biotherapeutics, Inc.,
Registration Statements (Form S-8 Nos. 333-239316, 333-227242, 333-266544 and 333-272602) pertaining to the 2018
Equity Incentive Plan of Iovance Biotherapeutics, Inc.,
Registration Statement (Form S-8 Nos. 333-239317 and 333-272601) pertaining to the 2020 Employee Stock Purchase Plan
of Iovance Biotherapeutics, Inc., and
Registration Statement (Form S-8 Nos. 333-259752, 333-263503 and 333-271810) pertaining to the 2021 Inducement Plan
of Iovance Biotherapeutics, Inc.;

of our reports dated February 28, 2024, with respect to the consolidated financial statements of Iovance Biotherapeutics, Inc. and the
effectiveness of internal control over financial reporting of Iovance Biotherapeutics, Inc. included in this Annual Report (Form 10-K) of
Iovance Biotherapeutics, Inc. for the year ended December 31, 2023.

/s/ Ernst & Young LLP

San Mateo, California
February 28, 2024

  Exhibit 31.1

CERTIFICATION OF PERIODIC REPORT UNDER SECTION 302 OF
THE SARBANES-OXLEY ACT OF 2002

I, Frederick G. Vogt, PhD., J.D., Interim Chief Executive Officer and President, and General Counsel of Iovance Biotherapeutics, Inc.,
certify that:

1.  I have reviewed this Annual Report on Form 10-K of Iovance Biotherapeutics, 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.

5.  The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial
reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the
equivalent functions):

(a)    All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which

are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b)    Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's

internal control over financial reporting.

Date: February 28, 2024

/s/ Frederick G. Vogt, Ph.D., J.D.
Frederick G. Vogt, Ph.D., J.D.
Interim Chief Executive Officer and President, and General Counsel
(Principal Executive Officer)

 Exhibit 31.2

CERTIFICATION OF PERIODIC REPORT UNDER SECTION 302 OF
THE SARBANES-OXLEY ACT OF 2002

I, Jean-Marc Bellemin, Chief Financial Officer of Iovance Biotherapeutics, Inc., certify that:

1.  I have reviewed this Annual Report on Form 10-K of Iovance Biotherapeutics, 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.

5.  The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial
reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the
equivalent functions):

(a)    All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which

are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b)    Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's

internal control over financial reporting.

Date: February 28, 2024

/s/ Jean-Marc Bellemin
Jean-Marc Bellemin
Chief Financial Officer
(Principal Financial Officer & Principal Accounting Officer)

 
 
 
 
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350
AS ADOPTED PURSUANT TO SECTION 906
OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 32.1

I, Frederick G. Vogt, Ph.D., J.D., Interim Chief Executive Officer and President, and General Counsel, of Iovance Biotherapeutics, Inc.
(Company), do hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of
2002, that to the best of my knowledge:

·           the Annual Report on Form 10-K of the Company for the year ended December 31, 2023 (Report) fully complies with the

requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

·           the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations

of the Company for the periods presented therein.

Date: February 28, 2024

/s/ Frederick G. Vogt, Ph.D., J.D.
Frederick G. Vogt, Ph.D., J.D.
Interim Chief Executive Officer and President, and General Counsel
(Principal Executive Officer)

 
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350
AS ADOPTED PURSUANT TO SECTION 906
OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 32.2

I, Jean-Marc Bellemin, Chief Financial Officer of Iovance Biotherapeutics, Inc. (Company), do hereby certify, pursuant to 18 U.S.C.
Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

·          the Annual Report on Form 10-K of the Company for the year ended December 31, 2023 (Report) fully complies with the

requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

·          the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations

of the Company for the periods presented therein.

Date: February 28, 2024

/s/ Jean-Marc Bellemin
Jean-Marc Bellemin
Chief Financial Officer
(Principal Financial Officer & Principal Accounting Officer)

 
IOVANCE BIOTHERAPEUTICS, INC.

DODD-FRANK CLAWBACK POLICY

Exhibit 97.1

Iovance Biotherapeutics, Inc. (the “Company”) has adopted this clawback policy (this
“Policy”) as a supplement to any other clawback policies in effect now or in the future at the 
Company.  To the extent this Policy applies to compensation payable to a person covered by this 
Policy, it shall be the only clawback policy applicable to such compensation and no other clawback 
policy shall apply; provided that, if such other policy provides that a greater amount of such 
compensation shall be subject to clawback, such other policy shall apply to the amount in excess of 
the amount subject to clawback under this Policy.  This Policy shall be interpreted to comply with 
the clawback rules found in 17 C.F.R. §240.10D-1 and the related listing rules of The Nasdaq 
Stock Market LLC (the “Exchange”), and, to the extent this Policy is in any manner deemed to be
inconsistent with such rules, this Policy shall be treated as retroactively amended to be compliant
with such rules.

1.  Definitions.  17 C.F.R. §240.10D-1(d) defines the terms “Executive Officer,” “Financial
Reporting Measures,” “Incentive-Based Compensation,” and “Received.”  As used herein, 
these terms shall have the same meanings as in that regulation, the current versions of which are 
re-stated below, as may be amended from time to time if that regulation is amended:

“Executive Officer” means the Company’s president, principal financial officer, principal
accounting officer (or if there is no such accounting officer, the controller), any vice-president of
the Company in charge of a principal business unit, division, or function (such as sales,
administration, or finance), any other officer who performs a policy-making function, or any other
person who performs similar policy-making functions for the Company.  Executive officers of 
the Company’s parent(s) or subsidiaries are deemed executive officers of the Company if they 
perform such policy making functions for the Company.  Policy-making function is not intended to 
include policy-making functions that are not significant.  

“Financial Reporting Measures” means measures that are determined and presented in
accordance with the accounting principles used in preparing the Company’s financial statements, 
and any measures that are derived wholly or in part from such measures.  Stock price and total 
shareholder return are also Financial Reporting Measures.  A Financial Reporting Measure need 
not be presented within the financial statements or included in a filing with the U.S. Securities and 
Exchange Commission.

“Incentive-Based Compensation” means any compensation that is granted, earned, or vested
based wholly or in part upon the attainment of a Financial Reporting Measure.

“Received” refers to the statement that Incentive-Based Compensation is deemed received in
the Company’s fiscal period during which the Financial Reporting Measure specified in the
Incentive-Based Compensation award is attained, even if the payment or grant of the Incentive-
Based Compensation occurs after the end of that period.

2.  Application of this Policy.  This Policy shall only apply in the event that the Company is 
required to prepare an accounting restatement due to the material noncompliance of the Company 
with any financial reporting requirement under the securities laws, including any required 
accounting restatement to correct an error in previously issued financial statements that is material 
to the previously issued financial statements, or that would result in a material misstatement if the 
error were corrected in the current period or left uncorrected in the current period.  Furthermore, 
this Policy shall only apply to Executive Officers.  Finally, this Policy shall apply to all Incentive-
Based Compensation Received by an Executive Officer on or after October 2, 2023.    

3.  Recovery Period.  The Incentive-Based Compensation subject to clawback is the Incentive-
Based Compensation Received during the three completed fiscal years immediately preceding the 
date that the Company is required to prepare an accounting restatement as described in Section 2 of 
this Policy, provided that the person served as an Executive Officer at any time during the 
performance period applicable to the Incentive-Based Compensation in question.  The date that the 
Company is required to prepare an accounting restatement shall be determined pursuant to 17 
C.F.R. §240.10D-1(b)(1)(ii).

(a)  Notwithstanding the foregoing, this Policy shall only apply if the Incentive-Based 
Compensation is Received (i) while the Company has a class of securities listed on the 
Exchange and (ii) on or after October 2, 2023.

(b)  See 17 C.F.R. §240.10D-1(b)(1)(i) for certain circumstances under which this Policy 
will apply to Incentive-Based Compensation received during a transition period arising due 
to a change in the Company’s fiscal year. 

4.  Erroneously Awarded Compensation.  The amount of Incentive-Based Compensation subject to 
this Policy (“Erroneously Awarded Compensation”) is the amount of Incentive-Based
Compensation Received that exceeds the amount of Incentive Based-Compensation that otherwise
would have been Received had it been determined based on the restated amounts and shall be
computed without regard to any taxes paid.

(a)  For Incentive-Based Compensation based on stock price or total shareholder return, 
where the amount of Erroneously Awarded Compensation is not subject to mathematical 
recalculation directly from the information in an accounting restatement: (i) the amount 
shall be based on a reasonable estimate of the effect of the accounting restatement on the 
stock price or total shareholder return upon which the Incentive-Based Compensation was 
received; and (ii) the Company must maintain documentation of the determination of that 
reasonable estimate and provide such documentation to the Exchange.  

5.  Recoupment.  The Company shall recover reasonably promptly any Erroneously Awarded 
Compensation, except to the extent that the conditions of paragraphs (a), (b), or (c) below apply.  
The Compensation Committee (the “Committee”) of the Board of Directors (the “Board”) of the 
Company shall determine the repayment schedule for each amount of Erroneously Awarded 
Compensation in a manner that complies with this “reasonably promptly” requirement.  Such 

determination shall be consistent with any applicable legal guidance, by the U.S. Securities and 
Exchange Commission, judicial opinion, or otherwise.  The determination of “reasonably 
promptly” may vary from case to case, and the Committee is authorized to adopt additional rules to 
further describe what repayment schedules satisfy this requirement.

(a) Erroneously Awarded Compensation need not be recovered if the direct expense paid to 
a third party to assist in enforcing this Policy would exceed the amount to be recovered and 
the Committee has made a determination that recovery would be impracticable. Before 
concluding that it would be impracticable to recover any amount of Erroneously Awarded 
Compensation based on expense of enforcement, the Company shall make a reasonable 
attempt to recover such Erroneously Awarded Compensation, document such reasonable 
attempt(s) to recover, and provide that documentation to the Exchange.  

(b) Erroneously Awarded Compensation need not be recovered if recovery would violate 
home country law where that law was adopted prior to November 28, 2022.  Before 
concluding that it would be impracticable to recover any amount of Erroneously Awarded 
Compensation based on violation of home country law, the Company shall obtain an 
opinion of home country counsel, acceptable to the Exchange, that recovery would result in 
such a violation and shall provide such opinion to the Exchange. 

(c) Erroneously Awarded Compensation need not be recovered if recovery would likely
cause an otherwise tax-qualified retirement plan, under which benefits are broadly available
to employees of the registrant, to fail to meet the requirements of 26 U.S.C. 401(a)(13) or
26 U.S.C. 411(a) and regulations thereunder.

6.  Sources of Recoupment.  To the extent permitted by applicable law, the Committee may, in its 
discretion, seek recoupment of Erroneously Awarded Compensation from the Executive Officer(s) 
through any means it determines, which may include any of the following sources: (i) prior 
Incentive-Based Compensation payments; (ii) future payments of Incentive-Based Compensation; 
(iii) cancellation of outstanding Incentive-Based Compensation; (iv) direct repayment; and (v) 
non-Incentive-Based Compensation or securities held by the Executive Officer. To the extent 
permitted by applicable law, the Company may offset such amount against any compensation or 
other amounts owed by the Company to the Executive Officer. 

7.  Administration.  This Policy is administered by the Committee.  The Committee shall have full 
and final authority to make any and all determinations required or permitted under this Policy.  
Any determination by the Committee with respect to this Policy shall be final, conclusive and 
binding on all Executive Officers subject to this Policy, unless determined to be an abuse of 
discretion.  The Board may amend this Policy at any time.

8.  No Indemnification. Notwithstanding anything to the contrary in any other policy of the
Company or any agreement between the Company and an Executive Officer, no Executive Officer
shall be indemnified by the Company against the loss of any Erroneously Awarded Compensation.

9.  2018 Equity Incentive Plan, as Amended.  The 2018 Equity Incentive Plan, as amended,
 provides that any award made pursuant to it is subject to (including on a retroactive basis) any
clawback required by applicable law and/or the rules and regulations of the Exchange or any other
securities exchange or inter-dealer quotation service on which the Company’s common stock is
listed or quoted and that such requirements shall be deemed incorporated by reference into all
outstanding award agreements.

10.  Agreement to Policy by Executive Officers.   The Committee shall take reasonable steps to 
inform Executive Officers of this Policy and obtain their agreement to this Policy, which steps may 
constitute the inclusion of this Policy as an attachment to any award that is accepted by the 
Executive Officer or the execution of an acknowledgement and agreement to this Policy by such 
Executive Officer.  

This Policy was adopted by the Board on November 17, 2023.