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uniQure N.V.

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FY2023 Annual Report · uniQure N.V.
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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
OR

For the transition period from                to                

Commission file number: 001-36294

uniQure N.V.
(Exact name of Registrant as specified in its charter)

The Netherlands
(Jurisdiction of incorporation or organization)

Paasheuvelweg 25,
1105 BP Amsterdam, The Netherlands
(Address of principal executive offices) (Zip Code)

+31-20-240-6000
 (Registrant’s telephone number, including area code)

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

Title of Each Class

Ordinary shares, par value €0.05 per share

Trading Symbol(s)
QURE   

Name of Each Exchange on Which Registered
The Nasdaq Stock Market LLC (The Nasdaq Global Select 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 under Section 12(g) of the Act: None

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

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-

T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).   Yes ☒ No ☐

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

Large accelerated filer ☐

Accelerated filer ☒

Non-accelerated filer ☐

Smaller reporting company ☐

Emerging growth company ☐

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

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

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over

financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☒

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

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

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

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

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

The aggregate market value of the voting and non-voting ordinary shares held by non-affiliates of the registrant as of June 30, 2023 was $546.67 million, based on the

closing price reported as of June 30, 2023 on the Nasdaq Global Select Market.

As of February 23, 2024, the registrant had 47,838,275 ordinary shares, par value €0.05, outstanding.

The documents incorporated by reference are as follows:

Portions of the registrant's definitive Proxy Statement for its 2024 Annual Meeting of Shareholders to be filed with the Securities and Exchange Commission no later

than April 29, 2024 and are herein incorporated by reference in Part III of this Annual Report on Form 10-K.

    
Table of Contents

TABLE OF CONTENTS

PART I

SPECIAL CAUTIONARY NOTICE REGARDING FORWARD-LOOKING STATEMENTS
Business

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

Properties
Legal Proceedings

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

PART II

Equity Securities
Reserved

Item 6
Item 7 Management’s Discussion and Analysis of Financial Condition and Results of Operations
Item 7A Quantitative and Qualitative Disclosures About Market Risk
Item 8
Item 9
Item 9A Controls and Procedures
Item 9B Other Information
Item 9C Disclosure Regarding Foreign Jurisdictions that Prevent Inspections

Financial Statements and Supplementary Data
Changes in and Disagreements With Accountants on Accounting and Financial Disclosure

PART III

Item 10 Directors, Executive Officers and Corporate Governance
Item 11
Item 12

Executive Compensation
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

Item 15 Exhibits, Financial Statement Schedules
Item 16

Form 10-K Summary

PART IV

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SPECIAL CAUTIONARY NOTICE REGARDING FORWARD-LOOKING STATEMENTS

This Annual Report on Form 10-K contains “forward-looking statements” as defined under federal securities laws.
Forward-looking statements are based on our current expectations of future events and many of these statements can be
identified using terminology such as “believes,” “expects,” “anticipates,” “plans,” “may,” “will,” “projects,” “continues,”
“estimates,”  “potential,”  “opportunity”  and  similar  expressions.  These  forward-looking  statements  involve  known  and
unknown  risks,  uncertainties  and  other  factors  that  may  cause  our  actual  results,  levels  of  activity,  performance  or
achievements  to  be  materially  different  from  the  information  expressed  or  implied  by  these  forward-looking  statements.
These  forward-looking  statements  include,  without  limitation,  statements  concerning:  our  ability  to  fund  our  future
operations; our financial position, revenues, costs, expenses, uses of cash and capital requirements; our need for additional
financing or the time period for which our existing cash resources will be sufficient to meet our operating requirements; the
success, progress, number, scope, cost, duration, timing or results of our research and development activities, preclinical
and clinical trials, including the timing for initiation or completion of or availability of results from any preclinical studies
and clinical trials or for the submission, review or approval of any regulatory filing; the timing of, and our ability to, obtain
and maintain regulatory approvals for any of our product candidates; the potential benefits that may be derived from any of
our  product  candidates;  our  strategies,  prospects,  plans,  goals,  expectations,  forecasts  or  objectives;  the  success  of  our
collaborations  with  third  parties;  our  ability  to  identify  and  develop  new  product  candidates  and  technologies;  our
intellectual property position; our commercialization, marketing and manufacturing capabilities and strategy; our estimates
regarding future expenses and needs for additional financing; our ability to identify, recruit and retain key personnel; our
financial  performance;  developments  and  projections  relating  to  our  competitors  in  the  industry;  and  our  liquidity  and
working capital requirements.

Although we believe that we have a reasonable basis for each forward-looking statement contained in this Annual
Report  on  Form  10-K,  such  statements  are  only  predictions  based  on  management’s  current  views  and  assumptions  and
involve  risks  and  uncertainties,  and  actual  results  could  differ  materially  from  those  projected  or  implied.  The  most
significant factors known to us that could materially adversely affect our business, operations, industry, financial position
or  future  financial  performance  include,  without  limitation,  the  clinical  results  and  the  development  and  timing  of  our
programs,  which  may  not  support  further  development  of  our  product  candidates;  actions  of  regulatory  agencies,  which
may affect the initiation, timing and progress of clinical trials; our ability to continue to build and maintain the company
infrastructure and personnel needed to achieve our goals; our effectiveness in managing current and future clinical trials
and  regulatory  processes;  the  continued  development  and  acceptance  of  gene  therapies;  our  ability  to  demonstrate  the
therapeutic benefits of our gene therapy candidates in clinical trials; our ability to obtain, maintain and protect intellectual
property; our ability to enforce our patents against infringers and defend our patent portfolio against challenges from third
parties;  our  ability  to  fund  our  operations  and  to  raise  additional  capital  as  needed;  competition  from  others  developing
therapies  for  similar  uses;  the  impact  of  global  economic  uncertainty,  rising  inflation,  rising  interest  rates  or  market
disruptions on our business; as well as those discussed in Part I, Item 1A “Risk Factors” in this Annual Report on Form 10-
K, as well as other factors which may be identified from time to time in our other filings with the Securities and Exchange
Commission (“SEC”), or in the documents where such forward-looking statements appear. You should carefully consider
that information before you make an investment decision.

You  should  not  place  undue  reliance  on  these  forward-looking  statements,  which  speak  only  as  of  the  date  that
they were made. Our actual results or experience could differ significantly from those anticipated in the forward-looking
statements  and  from  historical  results,  due  to  the  risks  and  uncertainties  described  in  this  Annual  Report  on  Form  10-K
including in Part I, Item 1A. “Risk Factors,” as well as others that we may consider immaterial or do not anticipate at this
time. These cautionary statements should be considered in connection with any written or oral forward-looking statements
that we may make in the future or may file or furnish with the SEC. We do not undertake any obligation to release publicly
any revisions to these forward-looking statements after completion of the filing of this Annual Report on Form 10-K to
reflect later events or circumstances or to reflect the occurrence of unanticipated events. All forward-looking statements
attributable to us are expressly qualified in their entirety by these cautionary statements.

In  addition,  with  respect  to  all  our  forward-looking  statements,  we  claim  the  protection  of  the  safe  harbor  for

forward-looking statements contained in the Private Securities Litigation Reform Act of 1995.

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Below is a summary of the principal risks associated with an investment in our ordinary shares speculative or risky. This
summary does not address all of the risks that we face. Additional discussion of the risks summarized in this risk factor
summary and other risks that we face can be found below under the heading “Item 1A. Risk Factors”.

Summary Risk Factors

● We  are  dependent  on  the  success  of  our  lead  product  candidate  in  clinical  development,  AMT-130  for  the
treatment of Huntington’s disease. A failure of AMT-130 in clinical development, challenges associated with its
regulatory  pathway,  or  its  inability  to  demonstrate  sufficient  efficacy  to  warrant  further  clinical  development
could adversely affect our business.

● We have encountered and may encounter future delays in and impediments to the progress of our clinical trials or

fail to demonstrate the safety and efficacy of our product candidates.

● Our progress in early-stage clinical trials may not be predictive of long-term efficacy in late-stage clinical trials,
and our progress in trials for one product candidate may not be predictive of progress in trials for other product
candidates.

● We  may  not  be  successful  in  our  efforts  to  use  our  gene  therapy  technology  platform  to  build  a  pipeline  of

additional product candidates or otherwise leverage our research and technology to remain competitive.

● Our  future  success  depends  on  our  ability  to  retain  key  executives,  technical  staff,  and  other  employees  and  to

attract, retain and motivate qualified personnel.

● Actions  that  we  have  taken  to  restructure  our  business  in  alignment  with  our  strategic  priorities  may  not  be  as

effective as anticipated, may not result in cost savings to us and could disrupt our business.

● Gene therapies are complex, expensive and difficult to manufacture. We could experience capacity, production or
technology transfer challenges that could result in delays in our development or commercialization schedules or
otherwise adversely affect our business.

● We will need to raise additional funding in order to advance the development of our product candidates, which
may not be available on acceptable terms, or at all. Failure to obtain capital when needed may force us to delay,
limit or terminate our product development efforts or other operations which could have a material adverse effect
on our business, financial condition, results of operations and cash flows.

● We had net losses in the years ended December 31, 2023 and 2022, have incurred significant losses in previous
years  and  expect  to  incur  losses  during  the  current  and  over  the  next  several  years  and  may  never  achieve  or
maintain profitability.

● The price of our ordinary shares has been and may in the future be volatile and fluctuate substantially.

● If  we  do  not  achieve  our  projected  development  goals  in  the  timeframes  we  announce  and  expect,  the

commercialization of our product candidates may be delayed and, as a result, our stock price may decline.

● If we are unable to obtain and maintain patent protection for our technology and products, or if the scope of the
patent  protection  is  not  sufficiently  broad,  our  ability  to  successfully  commercialize  our  products  may  be
impaired.

● We  may  become  involved  in  lawsuits  to  protect  or  enforce  our  patents  or  other  intellectual  property,  or  third
parties  may  assert  their  intellectual  property  rights  against  us,  which  could  be  expensive,  time  consuming  and
unsuccessful.

● We rely, and expect to continue to rely, on third parties to conduct, supervise, and monitor our preclinical studies
and clinical trials, and those third parties may not perform satisfactorily, including failing to meet deadlines in the
conduct or completion of such trials or failing to comply with regulatory requirements.

● We  rely  on  third  parties  for  important  aspects  of  our  development  programs.  If  these  parties  do  not  perform
successfully or if we are unable to enter into or maintain key collaborations or other contractual arrangements,
our business could be adversely affected.

● We face substantial competition, and others may discover, develop, or commercialize competing products before

or more successfully than we do.

● Our business development strategy depends on our ability to obtain rights to key technologies through in-licenses
and  support  the  development  of  our  product  pipeline  through  out-licenses,  and  those  efforts  may  not  be
successful.

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● Our business development strategy may not produce the cash flows expected or could result in additional costs

and challenges.

● We  may  be  adversely  affected  by  unstable  market  and  economic  conditions,  such  as  inflation,  which  may

negatively impact our business, financial condition and stock price.

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Unless the context requires otherwise, references in this report to “uniQure,” “Company,” “we,” “us” and “our”

and similar designations refer to uniQure N.V. and our subsidiaries.

Part I

Item 1.  Business.

Overview

We are a leader in the field of gene therapy, seeking to deliver to patients suffering from rare and other devastating
diseases  single  treatments  with  potentially  curative  results.  We  are  advancing  a  focused  pipeline  of  innovative  gene
therapies,  including  our  clinical  candidates  for  the  treatment  of  Huntington’s  disease,  amyotrophic  lateral  sclerosis
(“ALS”), refractory mesial temporal lobe epilepsy (“MTLE”) and Fabry disease. Our internally developed HEMGENIX®,
a gene therapy for the treatment of hemophilia B, has been approved for commercialization by the United States Food and
Drug Administration (the “FDA”) and the European Medicines Agency (“EMA”). The approval of HEMGENIX® follows
more  than  a  decade  of  research  and  clinical  development,  represents  a  major  milestone  in  the  field  of  gene  therapy  and
ushers in a new treatment approach for patients living with hemophilia B. We license HEMGENIX® to CSL Behring LLC
(“CSL Behring”), which is responsible for its commercialization. We are manufacturing HEMGENIX® for CSL Behring
and are entitled to specific milestone payments and royalties on net sales of the product, a portion of which we sold to a
royalty acquisition company in 2023 in exchange for up-front cash.

We believe our validated technology platform and manufacturing capabilities provide us with distinct competitive
advantages, including the potential to reduce development risk, cost, and time to market. We produce our adeno-associated
virus-based  gene  therapies  in  our  own  facilities  with  a  proprietary,  current  good  manufacturing  practices  (“GMP”)  -
compliant  manufacturing  process.  We  believe  our  Lexington,  Massachusetts-based  facility  is  one  of  the  world’s  leading,
most versatile, gene therapy manufacturing facilities.

A summary of our key development programs is provided below:

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Recent Product Candidate Developments

Huntington’s disease program (AMT-130)

AMT-130  is  our  novel  gene  therapy  candidate  for  the  treatment  of  Huntington’s  disease,  which  utilizes  our
proprietary, gene-silencing miQURE platform and incorporates an AAV vector carrying a miRNA specifically designed to
silence the huntingtin gene and the potentially highly toxic exon 1 protein fragment.

We are currently conducting a multi-center randomized, controlled, and blinded Phase I/II clinical trial for AMT-
130 in the U.S. in which 26 patients with early-manifest Huntington’s disease have been enrolled. The low-dose cohort of
this trial includes 10 patients, of which six patients received treatment with AMT-130 and four patients received imitation
surgery. The high-dose cohort includes 16 patients, of which 10 patients received treatment with AMT-130 and six patients
received imitation surgery. Patients in the high-dose cohort that received imitation surgery had the option to cross over after
12 months if they met the inclusion criteria for the study. In July 2022, we began crossing over patients in the high-dose
cohort who received the imitation surgical procedure. Four of the six control patients in the high-dose cohort have been
crossed over to treatment (three patients received the high dose and one patient received the low dose). The remaining two
control  patients  in  the  high-dose  cohort  did  not  meet  all  the  inclusion  criteria  for  the  study  and  were  not  eligible  for
crossover.  All  four  crossover  patients  received  a  short  course  of  immunosuppression  therapy  concurrent  with  the
administration of AMT-130.

We are also conducting an open-label Phase Ib/II study in the EU and the United Kingdom, which has enrolled 13
patients with the same early-manifest criteria for Huntington’s disease as the U.S. study. Six of these patients were treated
with AMT-130 in the initial low-dose cohort and seven patients were treated in the subsequent high-dose cohort.

We completed the enrollment of all 26 patients in the first two cohorts of our Phase I/II clinical trial of AMT-130
in the U.S. in March 2022. In June 2022, we announced initial safety and biomarker data from 10 patients enrolled in the
low-dose cohort of the ongoing U.S. Phase I/II clinical trial of AMT-130. In June 2023, we announced additional interim
data from U.S. Phase I/II clinical trial of AMT-130, including up to 24-month follow-up from the 26 patients enrolled.

In December 2023 we announced updated interim data, including up to 30 months of follow-up from 39 patients
enrolled  in  the  ongoing  U.S.  and  European  Phase  I/II  clinical  trials,  as  described  in  more  detail  below  under  “—Our
Development  of  AMT-130  for  Huntington’s  Disease”.  The  combined  U.S.  and  European  interim  data  were  subject  to  a
September 30, 2023 cut-off date and did not include outcome or biomarker data from the control patients who crossed over
to treatment with AMT-130 following the 12-month core study period.

● AMT-130 was generally well tolerated with a manageable safety profile at both doses. Serious adverse events
(“SAE”)  cases  of  CNS  inflammation  attributable  to  AMT-130  have  improved  with  the  administration  of
glucocorticoids.

● Patients treated with both doses of AMT-130 showed evidence of preserved neurologic function relative to
pre-treatment  baseline  measurements  and  potential  clinical  benefit  relative  to  a  non-concurrent  natural
history cohort, based in each case on certain clinical and functional measurements.

● CSF NfL trends for the low-dose cohort remained below baseline through month 30 and CSF NfL for the

high-dose cohort also further declined and was near baseline at month 18, together suggesting a reduction in
neurodegeneration when compared to an expected increase from baseline in CSF NfL based on natural
history data. Mean changes in Mutant Huntingtin Protein (“mHTT”) levels measured in CSF samples
compared to baseline continued to be variable and impacted by baseline levels near or below the lower limit
of quantification.

● Brain volumetric changes did not appear to be clinically meaningful or associated with protracted increases

in neurodegeneration as measured by NfL.

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Amyotrophic Lateral Sclerosis program (AMT-162)

In January 2023, we announced that we had entered into a global licensing agreement with Apic Bio, Inc. (“Apic
Bio”) for a one-time, intrathecally administered investigational gene therapy for ALS caused by mutations in superoxide
dismutase  1  (“SOD1”),  a  rapidly  progressing,  rare  motor  neuron  disease  that  leads  to  loss  of  everyday  functions  and  is
uniformly fatal (previously known as APB-102). Mutations in the SOD1 gene of ALS account for approximately one-fifth
of  all  inherited  forms  of  this  fatal  disease.  APB-102  is  comprised  of  a  recombinant  AAVrh10  vector  that  expresses  a
miRNA  designed  to  knock  down  the  expression  of  SOD1  with  the  goal  of  slowing  down  or  potentially  reversing  the
progression of ALS in patients with SOD1 mutations.

The FDA has cleared the IND application for APB-102 and has granted Orphan Drug and Fast Track designation.

Other Business Developments

Reorganization

In October 2023, we announced the implementation of a reorganization plan (the “Reorganization”). As a result of
the Reorganization, we discontinued investments in more than half of our then-existing research programs, including AMT-
210 for the treatment of Parkinson’s disease, and certain other technology projects. Following the Reorganization, we are
prioritizing advancing our clinical-stage programs, including referenced in the pipeline graphic above, to clinical proof of
concept.  As a result of the Reorganization, which was completed in December 2023, we eliminated approximately 20% of
our  total  workforce  and  closed  our  research  laboratory  in  Lexington,  Massachusetts.  As  part  of  the  Reorganization  we
consolidated  all  good  manufacturing  practices  (“GMP”)  manufacturing  into  our  Lexington  manufacturing  facility  and
consolidated  process  and  analytical  development  into  our  Amsterdam,  Netherlands  facility.  In  addition,  we  appointed
Richard Porter, Ph.D., who previously served as our Chief Business Officer, to serve as our Chief Business and Scientific
Officer, effective as of October 2023.

Royalty Financing Agreement

In  May  2023,  we  entered  into  a  royalty  purchase  agreement  (the  “Royalty  Purchase  Agreement”)  with  HemB
SPV,  L.P.  (the  “Purchaser”)  for  the  sale  of  a  portion  of  the  royalty  rights  due  to  us  from  CSL  Behring  under  the
commercialization  and  license  agreement  we  entered  into  with  CSL  Behring  in  June  2020  (the  “Commercialization  and
License Agreement”).  Under the terms of the Royalty Financing Agreement, we received an upfront payment of $375.0
million  in  exchange  for  the  Purchaser’s  rights  to  the  lowest  royalty  tier  on  CSL  Behring’s  worldwide  net  sales  of
HEMGENIX® for certain current and future royalties due to us. We are also eligible to receive an additional $25.0 million
milestone  payment  under  the  Royalty  Financing  Agreement  if  2024  net  sales  of  HEMGENIX®  exceed  a  pre-specified
threshold. We retained the rights to all other royalties, as well as contractual milestones totaling up to $1.3 billion, under
the terms of the CSL Behring Agreement. See Note 14, “Royalty Financing Agreement” for additional information on the
terms of the Royalty Purchase Agreement and payments thereunder.

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Our Mission and Strategy

Our mission is to deliver curative, one-time administered genomic medicines that transform the lives of patients.
We  aim  to  build  an  industry-leading,  fully  integrated,  and  global  company  that  leverages  its  technology  and  proprietary
manufacturing platform to deliver these medicines to patients with serious unmet medical needs. Our strategy to achieve
this mission is to:

Advance  the  development  of  AMT-130,  a  potential  one-time  gene-therapy  approach  for  the  treatment  of
Huntington’s  disease.  AMT-130  is  the  first  AAV-based  gene  therapy  that  entered  into  clinical  development  for
Huntington’s  disease.  It  consists  of  an  AAV5  vector  carrying  an  artificial  miRNA  specifically  tailored  to  silence  the
huntingtin  gene  and  leverages  our  proprietary  miQURE™  silencing  technology.  The  therapeutic  goal  of  AMT-130  is  to
inhibit the production of the mutant HTT protein. We enrolled 39 patients into our U.S. Phase I/II and our European Phase
Ib/II  clinical  trials.  We  announced  preliminary  results  from  these  clinical  trials  in  June  2022,  June  2023  and  December
2023. Together, these studies are intended to establish safety, proof of concept, and the optimal dose of AMT-130.

In November 2023 we commenced enrollment of a third cohort to further investigate both doses in combination
with perioperative immune suppression with a focus on evaluating near-term safety. Up to 12 patients will be treated in this
cohort, all of whom will receive AMT-130 using the current, established stereotactic neurosurgical delivery procedure. We
intend  to  use  these  additional  data  from  our  ongoing  clinical  trials  to  define  our  regulatory  and  ongoing  clinical
development strategy for AMT-130.

Advance our pipeline of clinical-stage gene therapy candidates. The INDs for our product candidates AMT-260
for the treatment of MTLE, AMT-162 for the SOD1-ALS, and AMT-191 for the treatment of Fabry disease were accepted
by the FDA in 2023. We have initiated clinical trials for these three programs with the objective of generating initial safety
and tolerability data and generating clinical proof-of concept.

Support  the  commercialization  and  global  expansion  of  HEMGENIX®. HEMGENIX®  is  an  FDA  and  EMA
approved one-time administered gene therapy for the treatment of patients with severe and moderately severe hemophilia
B. In 2020 we licensed the commercial rights to HEMGENIX® to CSL Behring. We will be supplying CSL Behring with
HEMGENIX®  for a number of years.

Prioritize  technology  development  on  next-generation  AAV  capsids  and  novel  cargo  technologies.  We  are
developing technologies that have the potential to augment the safety and efficacy of our product candidates and broaden
the applicability of our gene therapies to a wider range of diseases and patients. These technologies include next-generation
delivery  approaches,  such  as  smart  AAV  capsids  potentially  capable  of  improved  central  nervous  system  (“CNS”)
transduction  and  crossing  the  blood-brain  barrier,  as  well  as  novel  cargo  technologies  such  as  miQURE,  our  one-time
administered gene silencing platform, linkQURE to combine multiple miRNAs to suppress different genes, and goQURE
for simultaneous silencing of a disease gene and replacement with a healthy gene.

Central Nervous System Diseases

Huntington’s Disease

Huntington’s Disease and Market Background

Huntington’s  disease  is  a  severe  genetic  neurodegenerative  disorder  causing  loss  of  muscle  coordination,
behavioral abnormalities, and cognitive decline, often resulting in complete physical and mental deterioration over a 12 to
15-year  period.  The  median  survival  time  after  onset  is  15  to  18  years  (range:  5  to  >25  years).  Huntington’s  disease  is
caused by an inherited defect in a single gene that codes for a protein called Huntingtin (“HTT”). The estimated prevalence
of  Huntington’s  disease  is  three  to  seven  per  100,000  in  the  general  population,  similar  in  men  and  women,  and  it  is
therefore considered a rare disease. Huntington’s disease mutation carriers can be identified decades before onset. There is
currently  no  available  therapy  that  can  delay  onset  or  slow  progression  of  the  disease.  Although  some  symptomatic
treatments are available, they only are transiently effective despite significant side effects.

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Our Development of AMT-130 for Huntington’s Disease

AMT-130  is  our  novel  gene  therapy  candidate  for  the  treatment  of  Huntington’s  disease.  AMT-130  utilizes  our
proprietary, gene-silencing miQURE platform and incorporates an AAV vector carrying a miRNA specifically designed to
silence the huntingtin gene and the potentially highly toxic exon 1 protein fragment.

We are currently conducting a Phase I/II clinical trial for AMT-130 in the U.S. and a Phase Ib/II study in the EU.
Together, these studies are intended to establish safety, proof of concept, and the optimal dose of AMT-130.  AMT-130 has
received  Orphan  Drug  and  Fast  Track  designations  from  the  FDA  and  Orphan  Medicinal  Product  Designation  from  the
EMA.

Our goal for AMT-130 is to develop a gene therapy with the following profile:

(1) one-time  administration  of  disease-modifying  therapy  into  the  striatum,  the  area  of  the  brain  where

Huntington’s disease is known to manifest;

(2) biodistribution of the therapy in both the deep and cortical structures of the brain via transport of the AAV

vector and through secondary exosome-mediated delivery; and

(3) safe, on-target and durable knockdown of HTT and exon 1 HTT.

On March 21, 2022, we announced that we completed the enrollment of all 26 patients in the first two cohorts of
our  randomized,  double-blinded,  Phase  I/II  clinical  trial  of  AMT-130  taking  place  in  the  U.S.  In  the  study,  patients  are
randomized to either treatment with AMT-130 or to an imitation surgical procedure. The treated patients have received a
single administration of AMT-130 using MRI-guided, convection-enhanced stereotactic neurosurgical delivery directly into
the  striatum  (caudate  and  putamen).  The  trial  consists  of  a  blinded  12-month  period  followed  by  unblinded  long-term
follow-up for five years. The lower-dose cohort includes 10 patients, of which six patients received treatment with AMT-
130 and four patients received imitation surgery between June 19, 2020 and April 5, 2021. The higher-dose cohort includes
16  patients,  of  which  10  patients  received  treatment  with  AMT-130  and  six  patients  received  imitation  surgery  between
June 13, 2021 and March 21, 2022. In July 2022, we began crossing over patients in the high-dose cohort who received the
imitation surgical procedure. Four of the six control patients in the high-dose cohort have been crossed over to treatment
(three patients received the high dose and one patient received the low dose). The remaining two control patients in the
high-dose cohort did not meet all the inclusion criteria for the study and were not eligible for crossover. All four crossover
patients received a short course of immunosuppression therapy concurrent with the administration of AMT-130.

On June 23, 2022, we announced that in our open-label, Phase Ib/II study in Europe all six patients in the lower-

dose cohort and five out of the nine patients in the higher-dose cohort had been treated with AMT-130.

On  August  8,  2022,  we  announced  a  voluntary  postponement  of  AMT-130  higher-dose  procedures  due  to
suspected unexpected serious adverse reactions (“SUSARs”) reported in three of the 14 patients that were treated with the
higher  dose  of  AMT-130.  In  October  2022,  after  completing  a  comprehensive  safety  investigation,  the  DSMB
recommended resuming treatment at the higher dose of AMT-130. All three patients have experienced full resolution of the
reported SUSARs. following the investigation we have added additional risk mitigation procedures including closer patient
monitoring during the first two weeks after the administration of AMT-130 and a seven-day, post-surgical in-person visit.
The DSMB recommended that the use of immunosuppression remain at the discretion of the treating physician.

On  June  23,  2022,  we  announced  safety  and  biomarker  data  from  the  10  patients  enrolled  in  the  lower-dose

cohort. At 12 months of follow-up on the patients in the lower-dose cohort:

● AMT-130 was generally well-tolerated with no serious adverse events related to AMT-130 reported in

the treated patients at the lower dose of 6x1012 vector genomes;

● Measurements  of  CSF  NfL  increased  as  expected  following  the  AMT-130  surgical  procedure  and

approached baseline at 12 months;

● Measurements  of  mHTT  protein  in  the  CSF  of  evaluable  treated  patients  showed  potential  decreases

compared to baseline through 12 months

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On June 21, 2023, we announced interim data, including up to 24-month follow-up, from 26 patients enrolled in
the  ongoing  U.S.  Phase  I/II  clinical  trial  of  AMT-130.  Efficacy  and  biomarker  data  from  the  crossover  patients  are  not
included in the following summary.

● AMT-130 continues to be generally well-tolerated across both dose cohorts;

● Patients  treated  with  AMT-130  potentially  show  preserved  function  compared  to  baseline  and  clinical

benefits relative to natural history of the disease;

● NfL in the CSF was below baseline at 24 months in patients treated with the low-dose of AMT-130 and

declining towards baseline at 12 months in patients treated with the high-dose of AMT-130; and

On  December  19,  2023  ,we  announced  updated  interim  data,  including  up  to  30  months  of  follow-up  from  39

patients enrolled in the ongoing U.S. and European Phase I/II clinical trials:

Safety and tolerability

We believe AMT-130 was generally well-tolerated, with a manageable safety profile in patients treated with the
lower dose of 6x1012 vector genomes and the higher dose of 6x1013 vector genomes. The most common adverse events in
the treatment groups were related to the surgical procedure.

There were four serious adverse events (SAE) unrelated to AMT-130 (post-operative delirium, major depression,
suicidal ideation and epistaxis) in the low-dose cohort, six unrelated SAEs in the high-dose cohort (back pain, hypothermia,
post  procedural  hematoma,  post-lumbar  puncture  syndrome  (n=2),  pulmonary  embolism),  and  one  SAE  (deep  vein
thrombosis)  in  the  control  group.  In  addition,  there  were  four  AMT-130-related  SAEs  in  the  high-dose  cohort  (central
nervous  system  inflammation  (n=3),  and  severe  headache  (n=1)  that,  retrospectively,  also  was  attributable  to  central
nervous system inflammation.

Patients  with  symptomatic  central  nervous  system  inflammation  improved  with  glucocorticoid  medication.
Additionally, six high-dose patients have received preoperative steroids with the administration of AMT-130 to reduce the
risk of inflammation.

Exploratory efficacy data

Clinical  and  functional  measurements  for  treated  patients  in  each  dose  cohort  were  compared  to  baseline
measurements,  as  well  as  to  control  patients  (up  to  12  months)  and  a  non-concurrent  criteria-matched  natural  history
cohort.  The  natural  history  cohort  was  developed  by  us  in  collaboration  with  the  Cure  Huntington’s  Disease  Initiative
(CHDI) using the TRACK-HD natural history study of patients with early Huntington’s disease. The cohort includes 31
patients that met our clinical trial inclusion criteria of i) total functional capacity, ii) diagnostic classification level and (iii)
minimum striatal volumes.

● Updated clinical data through 30 months for the low-dose cohort and 18 months for the high-dose show
ongoing  evidence  of  potential  dose-dependent  clinical  benefit  relative  to  the  non-concurrent  criteria-
matched natural history.

● For  patients  receiving  the  high  dose,  neurological  function  as  measured  by  composite  Unified
Huntington’s Disease Rating Scale (“cUHDRS”) and each of its individual components was preserved or
improved at 18 months compared to pre-treatment baseline measurements.

● For patients receiving the low dose, neurological function as measured by Total Motor Score (TMS) and
Total  Functional  Capacity  (TFC)  was  preserved  at  30  months  compared  to  pre-treatment  baseline
measurements.

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● When  compared  to  the  expected  rate  of  decline  from  the  natural  history  cohort,  AMT-130  showed

favorable trends in cUHDRS, TFC and TMS.

-

-

-

cUHDRS:  AMT-130  showed  a  favorable  difference  in  cUHDRS  of  0.39  points  at  30  months  and
1.24 points at 18 months for the low- and high-dose, respectively (baseline values: 14.1 in low-dose
and 14.9 in high-dose).

TFC: AMT-130 showed a favorable difference in TFC of 0.95 points at 30 months in the low-dose
and 0.49 points at 18 months in the high-dose (baseline values: 11.9 in low-dose and 12.2 in high-
dose).

TMS: AMT-130 showed a favorable difference in TMS of 2.80 points at 30 months in the low-dose
and 1.70 points in the high-dose at 18 months (baseline values: 13.3 in low-dose and 12.1 in high-
dose).

Biomarkers and Volumetric Imaging Data

NfL:  Mean  CSF  NfL  for  the  low-dose  cohort  remained  below  baseline  through  month  30  and  was  6.6%  below
baseline.  Mean  CSF  NfL  for  the  high-dose  cohort  also  further  declined  and  is  near  baseline  at  month  18.  These  data
suggest  a  reduction  in  neurodegeneration  when  compared  to  an  expected  increase  from  baseline  in  CSF  NfL  based  on
natural history data. As expected, all patients treated with AMT-130 experienced a transient increase in CSF NfL related to
the  surgical  procedure  that  peaked  at  approximately  one  month  following  the  procedure  and  declined  thereafter.  These
transient increases were not dose dependent.

mHTT: Given AMT-130 is directly administered deep within the brain, the pharmacodynamics of mHTT in the
CSF are not believed to be materially representative of mHTT in the targeted brain regions. Mean changes in mHTT levels
measured in CSF samples compared to baseline continue to be variable and impacted by baseline levels near or below the
lower limit of quantification.

Total Brain Volume: Changes in the total brain volume of patients treated with AMT-130 were observed after the
surgical procedure and trended below natural history. The volumetric changes do not appear to be clinically meaningful or
associated with protracted increases in neurodegeneration as measured by NfL.

In November 2023 we commenced enrollment of a third cohort to further investigate both doses in combination
with perioperative immune suppression with a focus on evaluating near-term safety. Up to 12 patients will be treated in this
cohort, all of whom will receive AMT-130 using the current, established stereotactic neurosurgical delivery procedure.

Temporal Lobe Epilepsy Program (AMT-260)

Temporal Lobe Epilepsy Disease and Market Background

TLE affects approximately 1.0 million people in the U.S. and E.U. alone, of which approximately 0.3 million U.S.
patients are inadequately treated through anti-seizure medications and are considered refractory. 240,000 of U.S. refractory
TLE patients have a lesion in the mesial temporal lobe (hippocampus), which is expressed as sclerosis, atrophy or scarring.
Mesial  TLE  (“MTLE”)  is  often  caused  by  brain  injury,  infections  or  prolonged  febrile  seizures  which  can  lead  to
hyperexcitability  of  the  hippocampus  and  repeated  seizures  which  can  further  damage  the  hippocampus  over  time.
Refractory MTLE patients have a poor quality of life and a reduced lifespan. Surgical treatment for refractory patients is
lobectomy or laser tissue ablation but only 1-2% of eligible patients undergo surgery.

Our Development of AMT-260 for Temporal Lobe Epilepsy

In July 2021, we acquired uniQure France SAS (“uniQure France,” formerly Corlieve Therapeutics SAS) and its
lead program now known as AMT-260 to treat refractory MTLE. AMT-260 is being developed based on exclusive licenses
to certain patents uniQure France SAS obtained following its formation in 2019 from two French research institutions that
continue to collaborate with us.

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AMT-260  is  a  gene  therapy  using  an  AAV9  vector.  The  use  of  AAV9  to  deliver  any  sequence  that  affects  the

expression of the GRIK2 gene in humans has been exclusively licensed from Regenxbio Inc (“Regenxbio”).

AMT-260, employs miRNA silencing technology to target suppression of aberrantly expressed GluK2 containing

kainate receptors in the hippocampus of patients with MTLE.

In October 2021, we presented preclinical data for AMT-260 at the European Society of Gene and Cell Therapy
(“ESGCT”).  AMT-260  reduces  the  expression  of  GluK2  in  cortical  neurons,  reduces  epileptiform  activity  and
hyperlocomotion in a preclinical model of epilepsy and blocks epileptiform discharges in organotypic slices from patients
with MTLE.

In  July  2022,  we  initiated  IND-enabling,  GLP  toxicology  studies  in  non-human  primates  for  our  gene  therapy

candidate in MTLE.

On September 5, 2023 we announced that the FDA had cleared the IND application for AMT-260. The first-in-
human  Phase  I/IIa  clinical  trial  will  be  conducted  in  the  United  States  and  consist  of  two  parts.  The  first  part  is  a
multicenter,  open-label  trial  with  two  dosing  cohorts  of  six  patients  each  to  assess  safety,  tolerability,  and  first  signs  for
efficacy of AMT-260 in patients with refractory MTLE. The second part is expected to be a randomized, controlled trial to
generate proof of concept (“POC”) data.

Amyotrophic Lateral Sclerosis (“ALS”)

ALS Disease and Market Background

ALS  commonly  known  as  Lou  Gehrig’s  disease,  is  a  progressive  and  fatal  neuromuscular  disease  with  the
majority of ALS patients dying within 2 to 5 years of receiving a diagnosis. Familial ALS, a hereditary form of the disease,
accounts for 5-10% of cases, whereas the remaining cases (sporadic ALS) have no clearly defined etiology. ALS affects
persons  of  all  races  and  ethnicities;  however,  persons  of  certain  demographics  (Caucasians,  males,  non-Hispanics  and
persons aged 60 years or older) and those with a family history of ALS are more likely to develop the disease.

ALS affects approximately 17,800 to 31,800 adults in the U.S. and a similar number of adults in Europe. Evidence
from prevalence studies suggests that prevalence and incident rates can vary significantly between regions and ethnicities.
Most  cases  are  sporadic  (“sALS”)  but  approximately  10%  are  found  to  have  a  familial,  i.e.,  dominant  genetic  causation
(“fALS”).  fALS  can  be  caused  by  mutations  in  various  genes  including  chromosome  9  open  reading  frame  72
(“C9ORF72”), SOD1, tyrosyl-DNA phosphodiesterase 2 and others.

The  most  common  genetic  mutation  that  causes  ALS  is  a  G4C2  hexanucleotide  repeat  expansion  in  the
chromosome  9  open  reading  frame  72  (“C9ORF72”)  gene.  The  hexanucleotide  expansion  causes  the  formation  of
ribonucleic  acid  (“RNA”)  aggregates  and  the  production  of  toxic  dipeptides  that  ultimately  lead  to  neuronal  death.  It  is
estimated that there are approximately 600 incident cases per year in the U.S. and Europe.

Another  genetic  mutation  that  causes  ALS  are  pathogenic  mutations  in  the  superoxide  dismutase  enzyme
1(“SOD1”).  SOD1  is  an  enzyme  that  that  is  responsible  for  catalyzing  toxic  superoxide  to  hydrogen  peroxide  and
dioxygen. While the exact mechanism for disease is not known, it is believed that a toxic gain of function in SOD1 results
in oxidative stress and cell death of motor neurons. More than 100 pathogenic SOD-1 have been identified. Mutations are
concentrated in a few regions of the protein. Mutations can be both dominant and recessive. Most common mutations occur
in the D90A, G93A, A4H and D46R genes.

Patients  with  different  mutations  progress  at  different  rates.  It  is  estimated  that  there  are  approximately  300

incident cases per year in the U.S. and Europe.

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Our Development of AMT-162 for ALS – SOD1

On January 31, 2023, we announced that we entered into a global licensing agreement with Apic Bio for a novel,
one-time, intrathecally administered gene therapy for ALS caused by SOD1 mutations (formerly APB-102). The FDA has
cleared  the  IND  for  APB-102  and  has  granted  it  Orphan  Drug  and  Fast  Track  designation.  APB-102  is  comprised  of  a
recombinant AAVrh10 vector that expresses a miRNA designed to knock down the expression of SOD1 with the goal of
slowing down or potentially reversing the progression of ALS in patients with SOD1 mutations.

Our Development of AMT-161 for ALS – C9ORF72

AMT-161 is a one-time, intra cerebrospinal fluid-administered AAV gene therapy that targets the repeat-expanded
C9ORF72 allele to lower toxic RNA aggregates and prevent dipeptide protein formation. AMT-161 uses our miQURE and
linQURE gene silencing technology to target the toxic sense and antisense alleles of C9ORF72 as a potential treatment for
ALS. 

Alzheimer’s Disease (AMT-240)

Alzheimer’s Disease and Market Background

Alzheimer’s  disease  causes  loss  of  memory  and  dementia  and  is  the  most  common  neurodegenerative  disease.
Human  genetic  studies  suggest  that  the  Apolipoprotein  E  (APOE)  gene  is  an  important  factor  in  the  pathogenesis  of
Alzheimer’s  disease.  APOE  consists  of  3  major  isoforms  that  are  structurally  and  functionally  different.  The  APOE4
isoform is associated with earlier onset of Alzheimer’s disease while APOE2 and variants of APOE3 are protective.

Our Development of AMT-240  for Alzheimer’s disease

AMT-240 is our preclinical product candidate for the treatment autosomal dominant Alzheimer’s disease. AMT-
240 is a one-time intra cerebrospinal fluid-administered AAV gene therapy overexpressing a protective APOE variant with
or without a miQure designed to knockdown the toxic APOE4 variant. It is initially targeted as a treatment for autosomal
dominant Alzheimer’s disease patients but may be effective for a broader population of patients.

Liver-directed diseases

Hemophilia B (HEMGENIX® or etranacogene dezaparvovec)

Hemophilia B Disease and Market Background

Hemophilia  B  is  a  rare,  lifelong  bleeding  disorder  caused  by  a  single  gene  defect,  resulting  in  insufficient
production of factor IX, a protein primarily produced by the liver that helps blood clots form. Treatments for moderate to
severe hemophilia B include prophylactic infusions of factor IX replacement therapy to temporarily replace or supplement
low levels of blood-clotting factor and, while these therapies are effective, those with hemophilia B must adhere to strict,
lifelong infusion schedules. They may also still experience spontaneous bleeding episodes as well as limited mobility, joint
damage  or  severe  pain  as  a  result  of  the  disease.  For  appropriate  patients,  HEMGENIX®  allows  people  living  with
hemophilia B to produce their own factor IX, which can lower the risk of bleeding.

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CSL Behring collaboration

On  June  24,  2020,  we  entered  into  the  CSL  Behring  Agreement  pursuant  to  which  CSL  Behring  received

exclusive global rights to HEMGENIX®. The transaction became fully effective on May 6, 2021.

Unless earlier terminated as described below, the CSL Behring Agreement will continue on a country-by-country
basis until expiration of the royalty term in a country. The royalty term expires in a country on the later of (a) 15 years after
the  first  commercial  sale  of  the  Product  in  such  country,  (b)  expiration  of  regulatory  exclusivity  for  the  Product  in  such
country and (c) expiration of all valid claims of specific licensed patents covering the Product in such country. Either we or
CSL Behring may terminate the CSL Behring Agreement for the other party’s material breach if such breach is not cured
within a specified cure period. In addition, if CSL Behring fails to commercialize the Product in any of a group of major
countries  for  an  extended  period  of  time  following  the  first  regulatory  approval  of  the  Product  in  any  of  such  group  of
countries (other than due to certain specified reasons) and such failure has not been cured within a specified cure period,
then  we  may  terminate  the  CSL  Behring  Agreement.  CSL  Behring  may  also  terminate  the  CSL  Behring  Agreement  for
convenience.

In  March  and  April  2022,  we  received  the  total  $55.0  million  owed  to  us  by  CSL  Behring  related  to  CSL

Behring’s submissions of marketing applications for HEMGENIX® in the EU in March 2022 and the U.S. in April 2022.

In July 2023 we collected a $100.0 million payment from CSL Behring following the first sale of the Product in

the U.S in June 2023.

We  and  CSL  Behring  also  entered  into  a  development  and  commercial  supply  agreement,  pursuant  to  which,
among other things, we will supply the Product to CSL Behring. We are contractually obligated to supply the Product until
such time that these capabilities are transferred to CSL Behring or its designated contract manufacturing organization. On
September 6, 2022, CSL Behring notified us of its intent to transfer manufacturing technology in the coming years related
to HEMGENIX® to a third-party contract manufacturer designated by CSL Behring.

Fabry disease program (AMT-191)

Fabry Disease and Market Background

Fabry  disease  is  a  progressive,  inherited,  multisystemic  lysosomal  storage  disease  characterized  by  specific
neurological,  cutaneous,  renal,  cardiovascular,  cochleo-vestibular,  and  cerebrovascular  manifestations.  Fabry  disease  is
caused by a defect in a gene that encodes for a protein called α-galactosidase A (“GLA”). The GLA protein is an essential
enzyme  required  to  breakdown  globotriaosylsphingosine  (“Gb3”)  and  lyso-globotriaosylsphingosine  (“lyso-Gb3”).  In
patients living with Fabry disease, Gb3 and lyso-Gb3 accumulate in various cells throughout the body causing progressive
clinical  signs  and  symptoms  of  the  disease.  Current  treatment  options,  which  consist  of  bi-weekly  intravenous  enzyme
replacement therapy, typically have no therapeutic benefit in patients with advanced renal or cardiac disease. Studies have
also shown that a majority of male patients develop antibodies that inhibit the GLA protein and interfere with therapeutic
efficacy.

Fabry disease has two major disease phenotypes: the type 1 “classic” and type 2 “later-onset” subtypes. Both lead
to  renal  failure,  and/or  cardiac  disease,  and  early  death.  Type  1  males  have  little  or  no  functional  a-Gal  A  enzymatic
activity  (<1%  of  normal  mean)  and  marked  accumulation  of  GL-3/Gb3  and  related  glycolipids  in  capillaries  and  small
blood  vessels  which  cause  the  major  symptoms  in  childhood  or  adolescence.  In  contrast,  males  with  the  type  2  “later-
onset” phenotype (previously called cardiac or renal variants) have residual a-Gal A activity, lack GL-3/Gb3 accumulation
in capillaries and small blood vessels, and do not manifest the early manifestations of type 1 males. They experience an
essentially  normal  childhood  and  adolescence.  They  typically  present  with  renal  and/or  cardiac  disease  in  the  third  to
seventh decades of life. Most type 2 later-onset patients have been identified by enzyme screening of patients in cardiac,
hemodialysis, renal transplant, and stroke clinics and recently by newborn screening. Fabry disease occurs in all racial and
ethnic populations and affects males and females. It is estimated that type 1 classic Fabry disease affects approximately one
in 40,000 males and approximately one in 20,000 females. The type 2 later-onset phenotype is more frequent, and in some
populations may occur as frequently as about 1 in 1,500 to 4,000 males.

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Our Development of AMT-191 for Fabry Disease

In September 2020, we selected a lead gene therapy candidate (AMT-191) for the treatment of Fabry disease. The
lead  candidate  is  a  one-time  administered  AAV5  gene  therapy  incorporating  the  GLA  transgene  under  control  of  our
proprietary strong liver-specific promoter.

In  October  2021,  we  presented  preclinical  data  for  AMT-191  at  the  ESGCT,  confirming  efficiency  and  cross
correction  in  a  Fabry  mouse  model,  with  increased  gamma-linolenic  acid  in  the  liver,  kidney,  heart,  and  brain  and
normalized lysoglobotriaosylceramide-3 levels in main target organs.

On November 29, 2023 we announced that the FDA had cleared the IND application for AMT-191 and the first-
in-human Phase I/IIa clinical trial will be conducted in the United States. The multicenter, open-label clinical trial consists
of two dose-escalating cohorts of three patients each to assess safety, tolerability, and efficacy of AMT-191 in patients with
Fabry disease. Three patients will be dosed in the initial dose. If no dose-limiting toxicology is identified, the dose will be
escalated. If dose-limiting toxicology occurs in one of the three initial patients, three additional patients will be enrolled at
the same dose level. If no additional patients in the cohort experience a dose-limiting toxicology, the dose will be escalated.
Assessments will be made at three- and six-months post-treatment.  

New Technology Development

We are seeking to develop next-generation technologies with the goal of further improving the potential of AAV-
based gene therapies to treat patients suffering from debilitating diseases. We are focused on innovative technologies across
each of the key components of an AAV-based gene therapy, including: (i) the capsid, or the outer viral protein shell that
encloses  the  target  deoxyribonucleic  acid  (“DNA”);  (ii)  the  cargo,  including  the  transgene  or  therapeutic  gene,  and
promoters, or the DNA sequence that drives the expression of the transgene; and (iii) administration techniques.

We  dedicate  significant  effort  to  designing  and  screening  novel  AAV  capsids  with  the  potential  for  (i)  higher
biological potency; (ii) improved biodistribution including greater cell transduction and increased cellular specificity; (iii)
enhanced  safety;  and  (iv)  manufacturing  efficiency.  We  believe  we  have  significant  expertise  in  vector  engineering  and
have created promising genetically engineered capsids using both rational and directed evolution approaches.

We have also demonstrated the ability to deliver engineered DNA constructs that can silence or suppress disease-
causing genes. Our miQURE gene silencing platform, based on exclusively licensed technology from Cold Spring Harbor
Laboratory (“CSHL”), is designed to degrade mutated genes without off-target toxicity and induce silencing of the mutated
gene  in  the  entire  target  organ  through  secondary  exosome-mediated  delivery.  miQURE-based  gene  therapy  candidates,
such as AMT-130, incorporate proprietary, therapeutic miRNA constructs that can be delivered using AAVs to potentially
provide  long-lasting  activity.  Preclinical  studies  of  miQURE-based  gene  therapies  have  demonstrated  several  important
advantages,  including  enhanced  tissue-specificity,  improved  nuclear  and  cytoplasmic  gene  lowering  and  no  off-target
effects  associated  with  impact  to  the  cellular  miRNA  or  messenger  RNA  transcriptome.  The  existing  miQURE  gene
silencing strategy was expanded by linking several miRNA molecules in a single construct, resulting in the new linQURE
platform.

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Commercial-Scale Manufacturing Capabilities

The ability to reliably produce our products and product candidates at a high quality and at commercial scale is
critical to the development of our AAV-based gene therapies. With the exception of AMT-260 and AMT-162, we produce
our  gene  therapies  either  at  our  Amsterdam,  the  Netherlands  facility  (the  “Amsterdam  Facility”)  or  our  commercially
licensed  Lexington,  Massachusetts-based  manufacturing  facility  (the  “Lexington  Facility”)  using  our  proprietary
baculovirus  expression  vector  system.  We  believe  our  integrated  manufacturing  and  process  development  capabilities
provide us several potential advantages, including:

(1) Know-how.  Since  our  founding  in  1998,  we  have  invested  heavily  in  developing  optimized  processes,  methods
and  formulations  to  reliably  and  reproducibly  manufacture  AAV-based  gene  therapies  at  commercial  scale.
During  this  time,  we  have  accumulated  significant  internal  experience  and  knowledge  of  the  underlying
manufacturing technology and critical quality attributes of our products. These learnings have been essential in
developing a modular, third generation manufacturing platform that can be used to produce all our future gene
therapy products.

(2) Flexibility.  Controlling  cGMP  allows  us  to  rapidly  adapt  our  production  schedule  to  meet  the  needs  of  our
business. With the exception of AMT-260 and AMT-162 programs, we do not rely on contract manufacturers, nor
do  we  require  costly  and  time-consuming  technology  transfers  to  third  parties.  Our  facility  is  designed  to
commercially supply multiple products and is flexibly designed to accommodate expansion and scale up as our
needs change.

(3) Faster Path to Market. We believe our manufacturing platform enables us to rapidly produce new products for
clinical  investigation,  minimize  time  between  clinical  phases  and  complete  scale-up  as  product  candidates
advance into late-stage development and commercialization.

(4) Scalability. We have demonstrated our manufacturing process is reproducible at volumes ranging from 2 liters to
500 liters and believe it is possible to achieve higher scale production with our insect-cell, baculovirus system.

(5) Low Cost of Goods. We believe that our ability to scale production has the potential to significantly reduce unit
costs.  Our  manufacturing  process  only  utilizes  disposable  components,  which  enables  faster  change-over  times
between batches and avoid costs associated with cleaning and sterilization. Additionally, our production system
does not require the use of plasmids, which can be a costly raw material.

Our Intellectual Property

We  strive  to  protect  the  proprietary  technologies  that  we  believe  are  important  to  our  business,  including  by
seeking  and  maintaining  patent  protection  in  the  U.S.,  Europe,  and  other  countries  for  novel  components  of  our  gene
therapies,  the  chemistries  of  and  processes  for  manufacturing  these  gene  therapies,  the  use  of  these  components  in  gene
therapies,  our  technology  platform,  and  other  inventions  and  related  technology.  We  also  rely  on  trade  secrets,  security
measures and careful monitoring of our proprietary information to protect aspects of our business that are not amenable to,
or that we do not consider appropriate for, patent protection.

We  expect  that  our  probability  of  success  will  be  significantly  enhanced  by  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, maintain our licenses to use intellectual property owned by third parties, preserve
the  confidentiality  of  our  trade  secrets  and  operate  without  infringing  the  valid  and  enforceable  patents  and  other
proprietary  rights  of  third  parties.  We  also  rely  on  know-how,  continuing  technological  innovation  and  in-licensing
opportunities to develop, strengthen and maintain our proprietary position in the field of AAV-based gene therapies.

In  some  cases,  we  are  dependent  on  the  patented  or  proprietary  technology  of  third  parties  to  develop  and
commercialize  our  products.  We  must  obtain  licenses  from  such  third  parties  on  commercially  reasonable  terms,  or  our
business could be harmed, possibly materially. For example, we license from third parties essential parts of the therapeutic
gene cassettes as well as the principal AAV vectors we use and key elements of our manufacturing process. We anticipate
that we will require licenses to additional technology in the future.

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Because most patent applications throughout the world are confidential for 18 months after the earliest claimed
priority date, and since the publication of discoveries in the scientific and patent literature often lags actual discoveries, we
cannot  be  certain  that  we  were  the  first  to  invent  or  file  applications  for  the  inventions  covered  by  our  pending  patent
applications. Moreover, we may have to participate in post-grant proceedings in the patent offices of the U.S. or foreign
jurisdictions, such as oppositions, reexaminations, or interferences, in which the patentability or priority of our inventions
are challenged. Such proceedings could result in substantial cost, even if the eventual outcome is favorable to us. For more
information regarding the risks related to our intellectual property, please see Item 1A., Risk factors—Risks Related to Our
Intellectual Property, in this Annual Report on Form 10-K.

Our  intellectual  property  portfolio  consists  of  owned  and  in-licensed  patents,  copyrights,  licenses,  trademarks,

trade secrets and other intellectual property rights.

Patent Portfolio

Our  gene  therapy  programs  are  protected  by  patents  and  patent  applications  directed  to  various  aspects  of  our
technology. For example, our gene therapy programs are protected by patents and patent applications with composition of
matter or method of use claims that cover the therapeutic gene, the promoter, the viral vector capsid, or other specific parts
of  these  technologies.  We  also  seek  protection  of  core  aspects  of  our  manufacturing  process,  particularly  regarding  our
baculovirus expression system for AAV vectors in insect cells. In addition, we have filed manufacturing patent applications
with  claims  directed  to  alternative  compositions  of  matter  and  manufacturing  processes  to  seek  better  protection  from
competitors.

We file the initial patent applications for our commercially important technologies in both Europe and the U.S.
For the same technologies, we typically file international patent applications under the PCT within one year. We also may
seek, usually on a case-by-case basis, local patent protection in Canada, Australia, Japan, China, India, Israel, South Africa,
New Zealand, South Korea, and Eurasia, as well as South American jurisdictions such as Brazil and Mexico.

As  of  December  31,  2023,  our  intellectual  property  portfolio  included  123  issued  patents  (including  30  U.S.
patents and 14 patents granted by the European Patent Office (“EPO”)) and 129 pending patent applications (including 23
U.S. patent applications and 31 EPO patent applications).  These patents relate to a variety of technologies including our
product candidates that are in development and our manufacturing and technology platform.

Our Patent Portfolio Related to Our Key Development Programs

Hemophilia B program (HEMGENIX®)

We own a patent family, including patents and patent applications, directed to the use of the Padua mutation in
human Factor IX (“hFIX”) for gene therapy in etranacogene dezaparvovec. CSL Behring received exclusive global rights
to  etranacogene  dezaparvovec  pursuant  to  the  CSL  Behring  Agreement  and  is  responsible  for  the  prosecution  and
enforcement  of  the  underlying  patent  portfolio  pursuant  to  its  obligations  thereunder.  See  “Liver-directed  diseases—
Hemophilia B (HEMGENIX® or etranacogene dezaparvovec)” for more information on the CSL Behring collaboration.

Huntington’s disease program (AMT-130)

We own three patent families directed to gene therapy treatment of Huntington’s disease, including with AMT-130
and  its  formulation.  This  miQURE  gene  silencing  technology  platform  is  designed  to  degrade  disease-causing  genes
without off-target toxicity and induce silencing of the entire target organ through secondary exosome-mediated delivery.

Temporal Lobe Epilepsy (AMT-260)

We co-own three patent families directed to gene therapy treatment of TLE, including with AMT-260 of which the
other owners have exclusively licensed their rights to us. Additionally, we are the exclusive licensee to two other patent
families directed to the Gluk2/Gluk5 antagonists and their use in TLE.

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Amyotrophic Lateral Sclerosis (AMT-162)

We have obtained an exclusive license to two patent families directed to gene therapy treatment of ALS, including

AMT-162.

Fabry’s Disease (AMT-191)

We  own  a  patent  family  directed  to  potent  liver-specific  promoters  including  the  promoter  present  in  our  gene
therapy treatment of Fabry product AMT-191. Additionally, we own a patent family directed to the formulation of AMT-
191 for intravenous infusion.

Licenses

We  have  obtained  exclusive  or  non-exclusive  rights  from  third  parties  under  a  range  of  patents  and  other
technology  that  we  use  in  our  product  and  development  programs,  as  described  below.  Our  agreements  with  these  third
parties generally grant us a license to make, use, sell, offer to sell, and import products covered by the licensed patent rights
in exchange for our payment of some combination of an upfront amount, annual fees, royalties, a percentage of amounts
we  receive  from  our  licensees  and  payments  upon  the  achievement  of  specified  development,  regulatory  or  commercial
milestones. Some of the agreements specify the extent of the efforts we must use to develop and commercialize licensed
products. The agreements generally expire upon expiration of the last-to-expire valid claim of the licensed patents. Each
licensor may terminate the applicable agreement if we materially breach our obligations and fail to cure the breach within a
specified cure period.

Licensed Technology Used for Multiple Programs

We are exploiting technology from third-party sources described below in more than one of our programs.

Cold Spring Harbor Laboratory

In 2015, we entered into a license agreement with CSHL in which CSHL granted to us an exclusive, sublicensable
license to develop and commercialize certain of CSHL’s patented RNAi-related technology for use in connection with the
treatment  or  prevention  of  Huntington’s  disease.  We  expanded  the  scope  of  the  license  agreement  with  CSHL  in  2018
beyond Huntington’s disease to include the diagnosis, treatment, or prevention of all CNS diseases in the field. Under the
amended license agreement CSHL granted to us an exclusive license to develop and commercialize therapeutic products
for the additional disease classifications in the field of liver diseases, neuromuscular diseases, and cardiovascular diseases,
and we have subsequently added such products to our pipeline.

Under this license agreement, as amended, annual fees, development milestone payments and future single-digit
royalties on net sales of a licensed product are payable to CSHL. The standard 20-year patent term for the licensed patents
expires in 2031.

Protein Sciences

In 2016, we revised our existing license contract with Protein Sciences Corporation for the use of its expresSF+
insect  cell  line  and  associated  technology  for  human  therapeutic  and  prophylactic  uses  (except  influenza)  to  provide  us
with a royalty free, perpetual right and license to the technology in the field of AAV-based gene therapy.

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Technology Used for Specific Development Programs

Hemophilia B program (HEMGENIX®)

Padua

In  April  2017,  we  entered  into  an  Assignment  and  License  Agreement  with  Dr.  Simioni  (the  “Padua
Assignment”).  Pursuant  to  the  Padua  Assignment,  we  acquired  from  Dr.  Simioni  all  rights,  title  and  interest  in  a  patent
family  covering  the  variant  of  the  FIX  gene,  carrying  an  R338L  mutation  (FIX-Padua;  “Padua  IP”).  Under  the  Padua
Assignment, we have also licensed certain know-how included in the Padua IP. We provided Dr. Simioni with an initial
license  fee  and  reimbursement  of  past  expenses.  Under  the  agreement,  additional  payments  may  come  due  upon  the
achievement  of  certain  milestone  events  related  to  the  development  of  the  Padua  IP  or  as  royalties  on  a  percentage  of
certain  revenues.  We  have  granted  a  license  of  the  Padua  IP  back  to  Dr.  Simioni  for  therapeutic  or  diagnostic  use  of  a
modified Factor IX protein (other than in connection with gene therapy) and any application for non-commercial research
purposes.  We  have  agreed  to  indemnify  Dr.  Simioni  for  claims  arising  from  our  research,  development,  manufacture,  or
commercialization of any product making use of the Padua IP, subject to certain conditions. The Padua Assignment will
remain  in  effect,  unless  otherwise  terminated  pursuant  to  the  terms  of  the  Padua  Assignment,  until  the  later  of  (i)  the
expiration date of the last of the patents within the Padua IP and (ii) the expiration of the payment obligations under the
Padua Assignment.

St. Jude Children’s Research Hospital

In 2008, we entered into a license agreement with St. Jude Children’s Research Hospital (“St. Jude”), which we
amended in 2012. Under this license agreement, St. Jude has granted us an exclusive license, with a right to sublicense, to
patent rights relating to expression of hFIX in gene therapy vectors, to make, import, distribute, use, and commercialize
products  containing  hFIX  covered  by  a  valid  patent  claim  in  the  field  of  gene  therapy  for  treatment  or  prophylaxis  of
hemophilia B. In addition, we have a first right of negotiation regarding any patent applications that are filed by St. Jude
for  any  improvements  to  the  patent  rights  licensed  to  us.  The  U.S.  patent  rights  will  expire  in  2028  and  the  European
patents will expire in 2025.

We  have  agreed  to  pay  St.  Jude  a  royalty  equal  to  a  low  single-digit  percentage  of  net  sales  by  us  or  our
sublicensees  of  products  covered  by  the  licensed  patent  rights,  and  a  portion  of  certain  amounts  we  receive  from
sublicensees ranging from a mid-single digit to a mid-teen double-digit percentage of such amounts. With respect to our
collaboration with CSL Behring, we have agreed with St. Jude on an apportionment of certain amounts we receive from
CSL Behring as sublicensing revenue that is equivalent to a low-single digit percentage of such amounts.

The  agreement  will  remain  in  effect  until  no  further  payment  is  due  relating  to  any  licensed  product  under  this
agreement or either we or St. Jude exercise our rights to terminate it. St. Jude may terminate the agreement in specified
circumstances  relating  to  our  insolvency.  We  may  terminate  the  agreement  for  convenience  at  any  time  subject  to  a
specified notice period.

Temporal Lobe Epilepsy (AMT-260)

Regenxbio

In  June  2020,  uniQure  France  SAS  entered  into  an  agreement,  subsequently  amended  in  June  2021,  with
Regenxbio  for  an  exclusive  (in  the  field  of  using  AAV9  to  expression  of  the  GRIK2  gene  in  humans  (the  “Field”)),
sublicensable,  royalty-bearing,  worldwide  license  under  Regenxbio’s  interest  in  EU  patent  application  19185533.7  (the
“Foreground Patents”) and related patents, as well as patents covering inventions developed during the collaboration and
certain  patents  and  know-how  relating  to  AAV9.  The  license  also  includes  non-exclusive  rights  to  exploit  the  licensed
Foreground  Patents  and  certain  related  patents  know-how  developed  in  collaboration  pursuant  to  the  license  agreement
outside  the  Field.  The  license  also  includes  retained  and  license  back  rights  that  permit  Regenxbio  and  its  upstream
licensors  to  exploit  for  any  research,  development,  commercialization,  or  other  purposes  certain  patents,  inventions  and
know-how (other than the Foreground Patents) subject to or created pursuant to the license agreement.

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Payment obligations under the agreement provide for royalty payments on net sales in the mid-single digit to low-
double  digits,  and  milestone  payments  to  Regenxbio  in  the  mid-tens  of  millions  of  dollars  related  to  clinical  trials,
commercialization, and net sales. The agreement also calls for sublicense fees in the low-double digit range. The royalty is
paid  on  sales  of  license  products  using  any  of  licensed  patents  or  know-how  for  as  long  as  the  agreement  is  in  effect.
Royalty  and  milestone  payments  may  continue  to  be  owed  under  the  license  following  termination  of  the  agreement  if
licensed  products  are  sold  following  termination  of  the  license.  Under  the  agreement,  uniQure  France  SAS  has  certain
diligence  obligations  and  Regenxbio  has  certain  obligations  related  to  the  pre-clinical  development  of  manufacturing
technology.

Inserm Transfert

In January 2020, uniQure France SAS entered into license agreement with Inserm Transfert SA (also acting as a
delegate  for  the  French  National  Institute  of  Health  and  Medical  Research)  and  La  societe  SATT  Aquitaine  (the
counterparties collectively referred to as “Inserm Transfert”). Under the license agreement, uniQure France SAS is granted
an  exclusive,  sublicensable,  royalty-bearing,  worldwide  license  under  European  Patent  (“EP”)  patent  application
13306265.3 in the field of the prevention and treatment of epilepsy, and in Inserm Transfert’s share in EP patent application
19185533.7 (which is co-owned by Regenxbio) in the field of all human use. uniQure France SAS also is granted a non-
exclusive, sublicensable, royalty-bearing, worldwide license under certain know-how in the fields that may be developed
by Inserm pursuant to the agreements. Under the agreements, Inserm retains certain rights for teaching, academic and/or
research purposes.

Payment obligations under the agreements include a royalty on the net sales of license products in the low single
digits, milestone payments associated with clinical trial and regulatory approval milestones of multiple licensed products
totaling in the low-single digit millions of Euros. The agreement also calls for sublicense fees in the low to mid double-
digit  range  depending  on  the  timing  of  such  sublicense.  The  obligation  to  pay  royalties  extends  until  the  later  of  the
expiration of the patent rights, any regulatory exclusivity period, and 10 years from the first commercial sale of a licensed
product.

Amyotrophic Lateral Sclerosis (AMT-162)

Apic Bio

In January 2023, we announced that we had entered into a global licensing agreement with Apic Bio for a one-
time, intrathecally administered investigational gene therapy for ALS caused by mutations in SOD-1, pursuant to which we
acquired an exclusive global license (including a sublicense of rights granted to Apic Bio pursuant to an exclusive license
agreement  with  a  certain  U.S.-based  academic  institution)  to  Apic  Bio’s  rights  under  certain  licensed  technology  to
develop,  manufacture,  and  commercialize  any  product  incorporating  a  licensed  construct  (including  APB-102,  certain
constructs expressing a SOD1-targeting microRNA or AAV that codes for a microRNA that silences SOD1 expression), in
any  dosage  strength,  formulation,  concentration  or  method  of  delivery  in  the  applicable  field.  We  made  an  initial  cash
payment  of  $10.0  million  to  Apic  Bio.  In  addition,  we  will  pay  Apic  Bio  up  to  $43.0  million  in  milestones  upon
achievement of regulatory approvals in the U.S. and Europe and pre-specified annual net sales, and a tiered royalty on net
sales ranging from the mid-single digits to low double digits.

Trade Secrets

In  addition  to  patents  and  licenses,  we  rely  on  trade  secrets  and  know-how  to  develop  and  maintain  our
competitive  position.  For  example,  significant  aspects  of  the  process  by  which  we  manufacture  our  gene  therapies  are
based on unpatented trade secrets and know-how. We seek to protect our proprietary technology and processes and obtain
and  maintain  ownership  of  certain  technologies,  in  part,  through  confidentiality  agreements  and  invention  assignment
agreements with our employees, consultants, scientific advisors, contractors and commercial collaborator. We also seek to
preserve the integrity and confidentiality of our data, trade secrets and know-how by maintaining physical security of our
premises and physical and electronic security of our information technology systems.

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Trademarks

We  have  a  number  of  material  registered  trademarks,  including  “uniQure”,  that  we  have  registered  in  various
jurisdictions  including  the  U.S.  and  the  EU.  We  may  seek  trademark  protection  for  other  product  candidates  and
technologies as and when appropriate.

Competition

The biotechnology and pharmaceutical industries, including in the gene therapy field, are characterized by rapidly
advancing  technologies,  intense  competition,  and  a  strong  emphasis  on  intellectual  property.  We  face  substantial
competition  from  many  different  sources,  including  large  and  specialty  pharmaceutical  and  biotechnology  companies,
academic research institutions and governmental agencies and public and private research institutions.

We face worldwide competition from larger pharmaceutical companies, specialty pharmaceutical companies and
biotechnology  firms,  universities  and  other  research  institutions  and  government  agencies  that  are  developing  and
commercializing  pharmaceutical  products.  Our  key  competitors  focused  on  developing  therapies  in  various  indications,
include  among  others,  Pfizer,  Freeline  Therapeutics,  Intellia  Therapeutics,  Sangamo  Biosciences,  Voyager  Therapeutics,
Passage  Bio,  Roche,  PTC  Therapeutics,  Prilenia  Therapeutics,  CombiGene,  Caritas  Therapeutics,  Alnylam,  Wave  Life
Sciences, Bayer AG (AskBio), Amicus Therapeutics, 4D Molecular Therapeutics, Sanofi, Idorsia, Amicus, Spark, Takeda,
Chiesi,  CANbridge,  Abeona,  Annexon,  Vico,  Alexion  (AZ),  Neurona,  Combigene,  NeuExcell,  EpiBlok,  Biogen,  ionis,
Eisai and Lexeo,

We  also  compete  with  existing  standards  of  care,  therapies,  and  symptomatic  treatments,  as  well  as  any  new

therapies and novel technologies,  that may become available in the future for the indications we are targeting.

Many of our current or potential competitors, either alone or with their collaborators, have significantly greater
financial resources and expertise in research and development, manufacturing, preclinical testing, conducting clinical trials
regulatory  affairs,  and  marketing  approved  products  than  we  do.  Mergers  and  acquisitions  in  the  pharmaceutical,
biotechnology and gene therapy industries may result in even more resources being concentrated among a smaller number
of  our  competitors.  Smaller  or  early-stage  companies  may  also  prove  to  be  significant  competitors,  particularly  through
collaborative arrangements with large and established companies. These competitors also 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.

The key competitive factors affecting the success of all our programs are likely to be their efficacy, safety, convenience,
price, and the availability of reimbursement from government and other third-party payers. We also believe that, due to the
small size of the patient populations in the orphan indications we target, being first to market will be a significant
competitive advantage. We believe that our advantages in vector and manufacturing technology will enable us to reach
market in a number of indications ahead of our competitors, and to potentially capture the markets in these indications
either by being first or in those markets with larger populations having a differentiated product.

Government Regulation and Reimbursement

Government  authorities  in  the  U.S.,  EU  and  other  countries  extensively  regulate,  among  other  things,  the
approval,  research,  development,  nonclinical  and  clinical  testing,  manufacture  (including  any  manufacturing  changes),
packaging, storage, recordkeeping, labeling, advertising, promotion, distribution, marketing, post-approval monitoring and
reporting, reimbursement, and import and export of pharmaceutical products, biological products, and medical devices. We
believe  that  all  our  product  candidates  will  be  regulated  as  biological  products,  or  biologics,  and  in  particular,  as  gene
therapies, and will be subject to such requirements and regulations under U.S. and foreign laws. For other countries outside
of the U.S. and the EU, marketing approval and pricing and reimbursement requirements vary from country to country. If
we  fail  to  comply  with  applicable  regulatory  requirements,  we  may  be  subject  to,  among  other  things,  civil  penalties,
refusal  to  approve  pending  applications,  suspension  or  withdrawal  of  regulatory  approvals,  product  recalls,  seizure  of
products, operating restrictions, and criminal prosecution.

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Regulation in the United States

In  the  U.S.,  the  FDA  regulates  biologics  under  the  Public  Health  Service  Act  (“PHSA”)  and  the  Federal  Food,
Drug,  and  Cosmetic  Act  (“FDCA”)  and  regulations  and  guidance  implementing  these  laws.  These  laws  and  regulatory
guidance are continually evolving. By example, various actions have been taken by the U.S. Congress and President over
recent  years  with  respect  to  drug  shortage  prevention  and  reporting,  supply  chain  security,  and  the  promotion  of  U.S.
domestic  manufacturing.  The  FDA  also  continually  issues  nonbinding  guidance  documents  that  provide  the  FDA’s
interpretation of its laws and regulations, as well as the FDA’s approach to scientific issues and questions.

Obtaining  regulatory  approvals  and  ensuring  compliance  with  applicable  statutes  and  regulatory  requirements
entails the expenditure of substantial time and financial resources, including payment of user fees for applications to the
FDA. All our current product candidates are subject to regulation by the FDA as biologics. An applicant seeking approval
to market and distribute a new biologic in the U.S. must typically undertake the following:

● completion  of  nonclinical  laboratory  tests,  animal  studies  and  formulation  studies  in  compliance  with  the

FDA’s current Good Laboratory Practice regulations;

● submission to the FDA of an IND application which allows human clinical trials to begin unless the FDA

objects within 30 days; the sponsor of an IND or its legal representative must be based in the U.S.;

● approval by an independent institutional review board (“IRB”) and, for some studies, Institutional Biosafety

Committee (“IBC”) before each clinical trial may be initiated;

● performance  of  adequate  and  well-controlled  human  clinical  trials  in  accordance  with  the  FDA’s  cGCP  to
establish  substantial  evidence  of  the  safety  and  efficacy  for  the  proposed  biological  product  for  each
indication;

● preparation and submission to the FDA of a Biologics License Application (“BLA”);

● satisfactory  completion  of  one  or  more  FDA  inspections  or  remote  regulatory  assessments  of  the
manufacturing  facility  or  facilities  at  which  the  product,  or  components  thereof,  are  produced  to  assess
compliance with cGMP requirements and to assure that the facilities, methods, and controls are adequate to
preserve  the  product’s  identity,  strength,  quality,  and  purity,  as  well  as  selected  clinical  trial  sites  and
investigators to determine cGCP compliance;

● approval of the BLA by the FDA, in consultation with an FDA advisory committee, if deemed appropriate by

the FDA; and

● compliance  with  any  post-approval  commitments,  including  Risk  Evaluation  and  Mitigation  Strategies

(“REMS”), and post-approval studies required by the FDA.

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Human Clinical Studies in the United States under an IND

Before initiating clinical studies in the U.S. or under an IND, investigational product sponsors must first complete
nonclinical  studies.  Nonclinical  studies  include  laboratory  evaluation  of  chemistry,  pharmacology,  toxicity,  and  product
formulation, as well as animal studies to assess potential safety and efficacy. Such studies must generally be conducted in
accordance with the FDA’s GLPs.

Clinical trials involve the administration of the investigational biologic to human subjects under the supervision of
qualified investigators in accordance with current GCP requirements, which includes requirements for informed consent,
study conduct, and IRB review and approval. Special clinical trial ethical considerations also must be considered if a study
involves  children.  A  protocol  for  each  clinical  trial  and  any  subsequent  protocol  amendments  must  be  submitted  to  the
FDA as part of an IND. Sponsors will be required to provide the FDA with diversity action plans. INDs include nonclinical
study  reports,  together  with  manufacturing  information,  analytical  data,  any  available  clinical  data,  or  literature,  and
proposed clinical study protocols among other things. A clinical trial may not proceed in the U.S. unless and until an IND
becomes effective, which is 30 days after its receipt by the FDA. The FDA may raise concerns or questions related to one
or  more  components  of  an  IND  and  place  the  IND  on  clinical  hold  if  during  its  review  the  FDA  determines  that  study
subjects would be exposed to significant risk of illness or injury. In such a case, the IND sponsor and the FDA must resolve
any outstanding concerns before the clinical trial can begin. Clinical holds also may be imposed by the FDA at any time
before or during trials due to safety concerns or non-compliance.

The protocol and informed consent documents, as well as other subject communications must also be approved by
an IRB that continues to oversee that trial. In the case of gene therapy studies, an IBC at the local level may also review
and maintain oversight over the particular study, in addition to the IRB. The FDA, an IRB, and IBC, or the sponsor may
suspend or terminate a clinical trial at any time on various grounds, including a finding that the research subjects are being
exposed to an unacceptable health risk or that research requirements are not being met.

Additionally,  some  clinical  trials  are  overseen  by  an  independent  group  of  qualified  experts  organized  by  the
clinical trial sponsor that regularly reviews accumulated data and advises the study sponsor regarding the continuing safety
of the trial. This group may also review interim data to assess the continuing validity and scientific merit of the clinical
trial.  This  group  receives  special  access  to  unblinded  data  during  the  clinical  trial  and  may  advise  the  sponsor  to  halt,
pause, or otherwise modify the clinical trial.

Information about certain clinical trials, including results, must be submitted within specific timeframes for listing
on  the  ClinicalTrials.gov  website.  Sponsors  or  distributors  of  investigational  products  for  the  diagnosis,  monitoring,  or
treatment  of  one  or  more  serious  diseases  or  conditions  must  also  have  a  publicly  available  policy  on  evaluating  and
responding  to  requests  for  expanded  access.  Investigators  must  also  provide  certain  information  to  the  clinical  trial
sponsors to allow the sponsors to make certain financial disclosures to the FDA.

Subsequent clinical protocols and amendments must also be submitted to an active IND but are not subject to the
30-day review period imposed on an original IND. 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. There is a risk that once a new protocol or amendment is submitted to an active IND there may be an
extended  period  before  the  FDA  may  comment  or  provide  feedback.  This  may  result  in  a  need  to  modify  an  ongoing
clinical trial to incorporate this feedback or even a clinical hold of the trial. There is also risk that FDA may not provide
comments or feedback but may ultimately disagree with the design of the study once a BLA is submitted.

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

● Phase I: The biological product is initially introduced into healthy human subjects or patients with the target
disease or condition and tested for safety, dosage tolerance, absorption, metabolism, distribution, excretion
and, if possible, to gain an early understanding of its effectiveness.

● Phase II: The biological product is administered to a limited patient population to further identify possible
adverse  effects  and  safety  risks,  to  preliminarily  evaluate  the  efficacy  of  the  product  for  specific  targeted
diseases and to determine dosage tolerance and optimal dosage.

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

Recent legislation further established a new program that may be used to facilitate future marketing applications

and development programs following a first product approval. Specifically, the Consolidated Appropriations Act, 2023
established a program whereby a platform technology that is incorporated within or utilized by an approved drug or
biologic product may be designated as a platform technology, provided that certain conditions are met, in which case
development and approval of subsequent products using such technology may be expedited.

In addition, under the Pediatric Research Equity Act (the “PREA”), a BLA or BLA supplement 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. 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 the PREA requirements.

The manufacture of investigational drugs and biologics for the conduct of human clinical trials is subject to cGMP

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

Concurrent with clinical trials, companies usually complete additional nonclinical animal studies and must also

develop additional information about the chemistry and physical characteristics of the product candidate as well as 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, manufacturers must develop methods for testing the identity, strength, quality, potency, and purity of the final
product. 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.

Regulation and FDA Guidance Governing Gene Therapy Products

The  FDA  has  and  continues  to  issue  various  guidance  documents  with  respect  to  the  development  and
commercialization of gene therapies. These include guidance on, among other things, the proper preclinical and nonclinical
assessment  of  gene  therapies;  the  chemistry,  manufacturing,  and  controls;  the  design  and  conduct  of  clinical  trials;  the
design and analysis of shedding studies for virus or bacteria based gene therapies; the proper design of tests to measure
product potency in support of an IND or BLA application; and measures to observe delayed adverse effects in subjects and
patients who have been exposed to gene therapies via long-term follow-up with associated regulatory reporting. The FDA
has  also  issued  guidance  on  the  development  of  gene  therapies  for  the  treatment  of  neurodegenerative  diseases,  rare
diseases, and hemophilia, as such products may face special challenges.

Certain  gene  therapy  studies  are  also  subject  to  the  National  Institutes  of  Health’s  Guidelines  for  Research
Involving Recombinant DNA Molecules, (“NIH Guidelines”). The NIH Guidelines include the review of the study by an
IBC.  The  IBC  assesses  the  compliance  of  the  research  with  the  NIH  Guidelines,  assesses  the  safety  of  the  research  and
identifies any potential risk to public health or the environment.

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Compliance with cGMP Requirements

Manufacturers of biologics must comply with applicable cGMP regulations, including quality control and quality
assurance  and  maintenance  of  records  and  documentation.  Manufacturers  and  others  involved  in  the  manufacture  and
distribution of such products must also register their establishments with the FDA and certain state agencies and provide
the  FDA  a  list  of  products  manufactured  at  the  facilities.  Recently,  the  information  that  must  be  submitted  to  the  FDA
regarding manufactured products was expanded through the Coronavirus Aid, Relief, and Economic Security, or CARES,
Act to include the volume of drugs produced during the prior year. Establishments may be subject to periodic unannounced
inspections  and  remote  regulatory  assessments  by  government  authorities  to  ensure  compliance  with  cGMPs  and  other
laws. Discovery of non-compliance may result in the FDA placing restrictions on a product, manufacturer, or holder of an
approved  BLA,  and  may  extend  to  requiring  withdrawal  of  the  product  from  the  market,  recall,  shutdown,  enforcement
letters,  among  other  consequences.  Noncompliance  with  the  applicable  manufacturing  requirements  may  also  require
costly  corrective  and  preventative  actions.  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
production of the product within required specifications.

FDA Programs to Expedite Product Development

The  FDA  has  several  programs  to  expedite  product  development,  including  fast  track  designation  and
breakthrough therapy designation. These are outlined in specific FDA guidance. Under the fast track program, the sponsor
of  a  biologic  candidate  may  request  the  FDA  to  designate  the  product  for  a  specific  indication  as  a  fast  track  product
concurrent with or after the filing of the IND for the product candidate. To be eligible for a fast track designation, the FDA
must  determine  that  a  product  candidate  is  intended  to  treat  a  serious  or  life-threatening  disease  or  condition  and
demonstrates the potential to address an unmet medical need. This may be demonstrated by clinical or nonclinical data. If
granted, the benefits include greater interactions with the FDA and potentially rolling review of sections of the BLA. In
some cases, a fast track product may be eligible for accelerated approval or priority review.

Moreover, under the provisions of the Food and Drug Administration Safety and Innovation Act, enacted in 2012,
a sponsor can request designation of a product candidate as a breakthrough therapy. A breakthrough therapy is defined as a
product  that  is  intended,  alone  or  in  combination  with  one  or  more  other  products,  to  treat  a  serious  or  life-threatening
disease or condition, and preliminary clinical evidence indicates that the product may demonstrate substantial improvement
over existing therapies on one or more clinically significant endpoints, such as substantial treatment effects observed early
in clinical development. Products designated as breakthrough therapies are potentially eligible for rolling review, as well as
intensive guidance on an efficient development program beginning as early as Phase I trials, and a commitment from the
FDA to involve senior managers and experienced review staff in a proactive collaborative, cross disciplinary review.

Biologics studied for their safety and effectiveness in treating serious or life-threatening illnesses and that provide
meaningful  therapeutic  benefit  over  existing  treatments  may  receive  accelerated  approval,  which  means  the  FDA  may
approve the product based upon a surrogate endpoint that is reasonably likely to predict clinical benefit, or on a clinical
endpoint that can be measured earlier than irreversible morbidity or mortality, that is reasonably likely to predict an effect
on irreversible morbidity or mortality or other clinical benefit, taking into account the severity, rarity, or prevalence of the
condition and the availability or lack of alternative treatments. A biologic candidate approved on this basis is subject to
rigorous post-marketing compliance requirements, including the completion of Phase 4 or post-approval clinical trials to
confirm the effect on the clinical endpoint. By the date of approval of an accelerated approval product, FDA must specify
the  conditions  for  the  required  post  approval  studies,  including  enrollment  targets,  the  study  protocol,  milestones,  and
target completion dates. FDA may also require that the confirmatory Phase 4 studies be commenced prior to FDA granting
a product accelerated approval. Reports on the progress of the required Phase 4 confirmatory studies must be submitted to
FDA every 180 days after approval. Failure to conduct required post-approval studies, or confirm a clinical benefit during
post-marketing studies, will allow the FDA to withdraw the drug or biologic from the market on an expedited basis using a
statutorily  defined  streamlined  process.  Failure  to  conduct  the  required  Phase  4  confirmatory  studies  or  to  conduct  such
studies with due diligence, as well as failure to submit the required update reports can subject a sponsor to penalties. All
promotional materials for drug or biologic candidates approved under accelerated regulations are subject to prior review by
the  FDA.  In  recent  years,  the  accelerated  approval  pathway  has  come  under  significant  FDA  and  public  scrutiny.
Accordingly,  the  FDA  may  be  more  conservative  in  granting  accelerated  approval  or,  if  granted,  may  be  more  apt  to
withdrawal approval if clinical benefit is not confirmed.

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Even  if  a  product  qualifies  for  one  or  more  of  these  programs,  the  FDA  may  later  decide  that  the  product  no
longer  meets  the  conditions  for  qualification  or  decide  that  the  time  period  for  FDA  review  or  approval  will  not  be
shortened.

Submission of a BLA

The  results  of  the  nonclinical  and  clinical  studies,  together  with  detailed  information  relating  to  the  product’s
chemistry, manufacture, controls, and proposed labeling, among other things, are submitted to the FDA as part of a BLA
requesting  a  license  to  market  the  product  for  one  or  more  indications.  The  submission  of  a  BLA  is  subject  to  an
application  user  fee,  though  products  with  orphan  designation  are  exempt  from  the  BLA  filing  fee.  The  sponsor  of  an
approved  BLA  is  also  subject  to  annual  program  user  fees.  Orphan  products  may  also  be  exempt  from  program  fees
provided that certain criteria are met. These fees are typically increased annually. Under the Prescription Drug User Fee
Act (“PDUFA”) the FDA has agreed to specified performance goals in the review of BLAs.

Most  such  applications  are  meant  to  be  reviewed  within  ten  months  from  the  filing  acceptance  date  (typically
60 days after date of filing), and most applications for priority review products are meant to be reviewed within six months
of the filing acceptance date (typically 60 days after date of filing). Priority review designation may be assigned to product
candidates  that  are  intended  to  treat  serious  conditions  and,  if  approved,  would  provide  significant  improvements  in  the
safety or effectiveness of the treatment, diagnosis, or prevention of the serious condition.

The FDA may refuse to file an application and request additional information. In this event, the application must
be refiled with the additional information. The refiled application is also subject to assessment of content before the FDA
accepts  it  for  review.  Once  the  submission  is  accepted,  the  FDA  begins  an  in-depth  substantive  review.  The  FDA  will
assign a date for its final decision for the product (the “PDUFA action date”) but can extend this date to complete review of
a  product  application  or  to  consider  additional  information  submitted  during  the  application  review  period.  The  PDUFA
action date is only a goal, thus, the FDA does not always meet its PDUFA dates.

The FDA may also refer certain applications to an advisory committee. Before approving a product candidate for
which no active ingredient (including any ester or salt of active ingredients) has previously been approved by the FDA, the
FDA must either refer that product candidate 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.  The  FDA  may  also  refer  other
product  candidates  to  an  advisory  committee  if  the  FDA  believes  that  the  advisory  committee’s  expertise  would  be
beneficial. 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.

The FDA reviews applications to determine, among other things, whether a product candidate meets the agency’s
approval standards and whether the manufacturing methods and controls are adequate to assure and preserve the product’s
identity, strength, quality, potency, and purity. Before approving a marketing application, the FDA typically will inspect or
conduct remote regulatory assessments of 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,  including  contract
manufacturers  and  subcontractors,  are  in  compliance  with  cGMP  requirements  and  adequate  to  assure  consistent
production of the product within required specifications. Additionally, before approving a marketing application the FDA
will inspect or conduct remote regulatory assessments of one or more clinical trial sites to assure compliance with good
clinical practices (“GCPs”).

After  evaluating  the  marketing  application  and  all  related  information,  including  the  advisory  committee
recommendation, if any, and inspection and remote regulatory inspection reports regarding the manufacturing facilities and
clinical  trial  sites,  the  FDA  may  issue  an  approval  letter  or  a  complete  response  letter.  An  approval  letter  authorizes
commercial marketing of the biological product with specific prescribing information for specific indications. A complete
response  letter  generally  outlines  the  deficiencies  in  the  submission  and  may  require  substantial  additional  testing  or
information  for  the  FDA  to  reconsider  the  application.  Even  with  submission  of  this  additional  information,  the  FDA
ultimately  may  decide  that  the  application  does  not  satisfy  the  regulatory  criteria  for  approval.  If  and  when  those
deficiencies have been addressed to the FDA’s satisfaction in a resubmission of the BLA, the FDA will issue an approval
letter. Many drug applications receive complete response letters from the FDA during their first cycle of FDA review.

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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  boxed  warnings;  require  that
post-approval studies, including Phase 4 clinical trials and trials to ensure that population representative data is collected,
be conducted to further assess a biologic’s efficacy and safety after approval; or require testing and surveillance programs
to monitor the product after commercialization. The FDA may prevent or limit further marketing of a product based on the
results of post-market studies or surveillance programs. The FDA may also not approve label statements that are necessary
for successful commercialization and marketing.

In addition to the above conditions of approval, the FDA also may require submission of a REMS to ensure that
the  benefits  of  the  product  candidate  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 product outweigh the risks. In guidance, FDA stated that during the review of a
BLA  for  a  gene  therapy,  it  will  assess  whether  a  REMS  is  necessary.  Several  gene  therapy  products  that  have  been
approved  by  FDA  have  required  substantial  REMS,  which  included  requirements  for  dispensing  hospital  and  clinic
certification, training, adverse event reporting, documentation, and audits and monitoring conducted by the sponsor, among
other  conditions.  REMS,  such  as  these,  can  be  expensive  and  burdensome  to  implement,  and  burdensome  for  hospitals,
clinics, and healthcare providers to comply with.

Biosimilars and Exclusivity

The Biologics Price Competition and Innovation Act of 2009 (“BPCIA”) which amended the PHSA authorized
the  FDA  to  approve  biosimilars  under  Section  351(k)  of  the  PHSA.  Under  the  BPCIA,  a  manufacturer  may  apply  for
licensure  of  a  biologic  product  that  is  biosimilar  to  or  interchangeable  with  a  previously  approved  biological  product  or
reference  product.  For  the  FDA  to  approve  a  biosimilar  product,  it  must  find  that  it  is  highly  similar  to  the  reference
product  notwithstanding  minor  differences  in  clinically  inactive  components  and  that  there  are  no  clinically  meaningful
differences  between  the  reference  product  and  proposed  biosimilar  product  in  safety,  purity  or  potency.  A  finding  of
interchangeability requires that a product is determined to be biosimilar to the reference product, and that the product can
be expected to produce the same clinical results as the reference product and, for products administered multiple times, the
biologic and the reference biologic may be switched after one has been previously administered without increasing safety
risks or risks of diminished efficacy relative to exclusive use of the reference biologic.

An application for a biosimilar product may not be submitted to the FDA until four years following approval of
the  reference  product,  and  it  may  not  be  approved  until  12  years  following  approval  of  the  reference  product.  These
exclusivity  provisions  only  apply  to  biosimilar  companies  and  not  companies  that  rely  on  their  own  data  and  file  a  full
BLA.  Moreover,  this  exclusivity  is  not  without  limitation.  Certain  changes  and  supplements  to  an  approved  BLA,  and
subsequent applications filed by the same sponsor, manufacturer, licensor, predecessor in interest, or other related entity do
not qualify for the twelve-year exclusivity period. Further, the twelve-year exclusivity period in the U.S. for biologics has
been controversial and may be shortened in the future.

The  PHSA  also  includes  provisions  to  protect  reference  products  that  have  patent  protection.  The  biosimilar
product  sponsor  and  reference  product  sponsor  may  exchange  certain  patent  and  product  information  for  the  purpose  of
determining  whether  there  should  be  a  legal  patent  challenge.  Based  on  the  outcome  of  negotiations  surrounding  the
exchanged  information,  the  reference  product  sponsor  may  bring  a  patent  infringement  suit  and  injunction  proceedings
against  the  biosimilar  product  sponsor.  The  biosimilar  applicant  may  also  be  able  to  bring  an  action  for  declaratory
judgment concerning the patent.

The  FDA  maintains  a  list  of  approved  biological  products,  which  is  commonly  referred  to  as  the  Purple  Book.
This list includes product names, the date of licensure, and any periods of regulatory exclusivity. Following the exchange
of  patent  information  between  the  biosimilar  and  reference  product  sponsor,  the  reference  product  sponsor  must  also
provide the exchanged patent information and patent expiry dates to the FDA. The FDA then publishes this information in
the Purple Book.

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

Orphan Drug Exclusivity

Under  the  Orphan  Drug  Act  of  1983,  the  FDA  may  designate  a  biological  product  as  an  orphan  drug  if  it  is
intended  to  treat  a  rare  disease  or  condition  that  affects  fewer  than  200,000  individuals  in  the  U.S.,  or  more  in  cases  in
which there is no reasonable expectation that the cost of developing and making a biological product available in the U.S.
for treatment of the disease or condition will be recovered from sales of the product. Additionally, sponsors must present a
plausible hypothesis for clinical superiority to obtain orphan drug designation if there is a product already approved by the
FDA that is considered by the FDA to be the same as the already approved product and is intended for the same indication.
This hypothesis must be demonstrated to obtain orphan exclusivity. With respect to gene therapies, the FDA has issued a
specific guidance on how the agency interprets its sameness regulations. Specifically, whether two products are deemed to
be  the  same  by  the  FDA  will  depend  on  the  products’  transgene  expression,  viral  vectors  groups  and  variants,  and
additional product features that may contribute to therapeutic effect. Minor product differences will not, generally, result in
a finding that two products are different and there are some factors that FDA will consider on a case-by-case basis. Any of
the FDA sameness determinations could impact our ability to receive approval for our product candidates and to obtain or
retain orphan drug exclusivity.

If a product with orphan designation receives the first FDA approval, it may be granted seven years of marketing
exclusivity,  which  means  that  the  FDA  may  not  approve  any  other  applications  for  the  same  product  for  the  same
indication  for  seven  years,  unless  clinical  superiority  is  demonstrated.  Competitors  may  receive  approval  of  different
products for the indication for which the orphan product has exclusivity and may obtain approval for the same product but
for  a  different  indication.  Notably,  a  2021  judicial  decision,  Catalyst  Pharms.,  Inc.  v.  Becerra,  14  F.  4th  1299  (11th  Cir
2021), challenged and reversed an FDA decision on the scope of orphan product exclusivity for the drug, Firdapse. Under
this decision, orphan drug exclusivity for Firdapse blocked approval of another company’s application for the same drug
for  the  entire  disease  or  condition  for  which  orphan  drug  designation  was  granted,  not  just  the  disease  or  condition  for
which approval was received. In a January 2023 Federal Register notice, however, FDA stated that it intends to continue to
apply its regulations tying the scope of orphan-drug exclusivity to the uses or indications for which a drug is approved. The
exact scope of orphan drug exclusivity will likely be an evolving area.

Orphan  drug  designation  does  not  change  the  FDA’s  standard  for  product  approval.    The  FDA’s  regulations,
however,  provide  flexibility  in  meeting  such  approval  standards  such  that  the  FDA  may  exercise  scientific  judgment  in
determining the kind and quantity of data required for approval and during development programs.  Per guidance issued by
the  FDA  in  2023,  “[t]his  flexibility  extends  from  the  early  stages  of  development  to  the  design  of  adequate  and  well-
controlled  clinical  investigations  required  to  demonstrate  effectiveness  to  support  marketing  approval  and  to  establish
safety data needed for the intended use.” The FDA states that it “is committed to helping sponsors create successful drug
development programs that address the particular challenges posed by each disease.”

Pediatric Exclusivity

Under  the  Pediatric  Research  Equity  Act  of  2003,  pediatric  exclusivity  provides  for  the  attachment  of  an
additional six months of marketing protection to the term of any existing regulatory exclusivity in the US, including orphan
exclusivity  and  reference  biologic  exclusivity.  This  six-month  exclusivity  may  be  granted  if  the  FDA  issues  a  written
request to the sponsor for the pediatric study, the sponsor submits a final study report after receipt of the written request
and meets the terms and timelines in the FDA’s written request.

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Regenerative Advanced Therapy Designation

The 21st  Century  Cures  Act  became  law  in  December  2016  and  created  a  new  program  under  Section  3033  in
which  the  FDA  has  authority  to  designate  a  product  as  a  regenerative  medicine  advanced  therapy  (“RMAT”).  A  drug  is
eligible  for  a  RMAT  designation  if:  1)  it  is  a  regenerative  medicine  therapy  which  is  a  cell  therapy,  therapeutic  tissue
engineering product, human cell and tissue product, or any combination product using such therapies or products, except
those products already regulated under Section 361 of the PHSA; 2) the drug is intended to treat, modify, reverse, or cure a
serious or life-threatening disease or condition; and 3) preliminary clinical evidence indicates that the drug has the potential
to  address  unmet  medical  needs  for  such  disease  or  condition.  A  RMAT  designation  request  must  be  made  with  the
submission  of  an  IND  or  as  an  amendment  to  an  existing  IND.  FDA  will  determine  if  a  product  is  eligible  for  RMAT
designation within 60 days of submission. Advantages of the RMAT designation include all the benefits of the fast track
and breakthrough therapy designation programs, including early interactions with the FDA. These early interactions may
be used to discuss potential surrogate or intermediate endpoints to support accelerated approval. In 2019 the FDA stated in
guidance that human gene therapies, including genetically modified cells, that lead to a sustained effect on cells or tissues,
may meet the definition of a regenerative therapy.

FDA Regulation of Companion Diagnostics and Other Combination Products

We may seek to develop companion diagnostics for use in identifying patients that we believe will respond to our
gene therapies. Similarly, our product candidates may require delivery devices. A biologic product may be regulated as a
combination product if it is intended for use in conjunction with a medical device, such as a drug delivery device or an in
vitro diagnostic device. For combination products, the biologic and device components must, when used together, be safe
and effective and the product labeling must reflect their combined use. In some cases, the medical device component may
require  a  separate  premarket  submission.  Moreover,  clinical  trial  sponsors  using  investigational  devices  in  their  studies
must comply with FDA’s investigational device exemption regulations. If the device component (e.g., in vitro diagnostic
device)  is  not  packaged  with  the  drug  component  and  authorized  by  the  FDA  as  a  combination  product,  or  approved  or
cleared  as  a  medical  device,  the  device  component  must  comply  with  the  FDA  general  controls  applicable  to  a  medical
device,  including  establishment  registration,  device  listing,  device  labeling,  unique  device  identifier,  quality  system
regulation, medical device reporting, and reporting of corrections and removals requirements.  If the device component is
packaged  with  the  drug  component  (e.g.,  drug  delivery  device),  then  only  certain  FDA  general  controls  applicable  to  a
medical device will apply (assuming the manufacturer’s quality system complies with the cGMPs).

If  the  safety  or  effectiveness  of  a  biologic  product  is  dependent  on  the  results  of  a  diagnostic,  the  FDA  may
require that the in vitro companion diagnostic device and biologic product be contemporaneously authorized by the FDA,
with  labeling  that  describes  the  use  of  the  two  products  together.  The  type  of  premarket  submission  required  for  a
companion diagnostic device will depend on the FDA device classification. A premarket approval (“PMA”), application is
required for high-risk devices classified as Class III; a 510(k) premarket notification is generally required for moderate risk
devices classified as Class II. A de novo request may be used for novel devices not previously classified by the FDA (and
hence  are  automatically  Class  III)  but  are  low  or  moderate  risk  (due  to  the  application  of  special  controls)  and  thus  are
classified  as  Class  II.  Except  in  some  limited  circumstances,  the  FDA  generally  will  not  approve  a  biologic  that  is
dependent  upon  the  use  of  a  companion  diagnostic  device  if  the  device  is  not  contemporaneously  FDA-approved  or  -
cleared.  It’s  also  possible  that  an  in  vitro  diagnostic  device  could  be  subject  to  FDA  enforcement  discretion  from
compliance  with  the  FDCA  if  it  meets  the  definition  of  a  Laboratory  Developed  Test  (“LDT”).    Recent  regulatory  and
legislative proposals, however, may cause the FDA to actively regulate LDTs.

Post-approval Requirements

Any products manufactured or distributed pursuant to the FDA approvals are subject to pervasive and continuing
regulation  by  the  FDA,  including,  among  other  things,  requirements  related  to  manufacturing,  recordkeeping,  and
reporting, including adverse experience reporting, deviation reporting, shortage reporting, and periodic reporting, product
sampling and distribution, advertising, marketing, promotion, certain electronic records and signatures, and post-approval
obligations imposed as a condition of approval, such as Phase 4 clinical trials, REMS, and surveillance to assess safety
and effectiveness after commercialization.

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After approval, most changes to the approved product, such as adding new indications or other labeling claims,
are  subject  to  prior  FDA  review  and  approval.  There  also  are  continuing  annual  program  user  fee  requirements  for
approved products, excluding orphan products provided that certain criteria are met. Regulatory authorities may withdraw
product  approvals,  require  label  modifications,  or  request  product  recalls,  among  other  actions,  if  a  company  fails  to
comply  with  regulatory  standards,  if  it  encounters  problems  following  initial  marketing,  or  if  previously  unrecognized
problems are subsequently discovered.

Changes to the manufacturing process are strictly regulated and often require prior FDA approval or notification
before  being  implemented.  In  fact,  in  2023,  the  FDA  issued  a  guidance  specifically  on  demonstrating  product
comparability, and the management and reporting of manufacturing changes for investigational and licensed cellular and
gene  therapy  products.  FDA  regulations  also  require  investigation  and  correction  of  any  deviations  from  cGMP  and
specifications and impose reporting and documentation requirements upon the sponsor and any third-party manufacturers
that  the  sponsor  may  decide  to  use.  Accordingly,  manufacturers  must  continue  to  expend  time,  money,  and  effort  in
production and quality control to maintain cGMP compliance.

The FDA also strictly regulates marketing, labeling, advertising, and promotion of products that are placed on the
market. A company can make only those advertising and promotional claims relating to a product that are consistent with
the  label  approved  by  the  FDA.  Physicians,  in  their  independent  professional  medical  judgment,  may  prescribe  legally
available  products  for  unapproved  indications  that  are  not  described  in  the  product’s  labeling  and  that  differ  from  those
tested  and  that  have  been  approved  by  the  FDA.  Biopharmaceutical  companies,  however,  are  required  to  promote  their
products  only  for  the  approved  indications  and  in  a  manner  that  is  consistent  with  the  provisions  of  the  approved  label.
Companies  must  also  provide  adequate  balancing  information  on  a  product’s  risks  in  its  advertising  and  promotional
pieces.  In 2023, the FDA took a few actions in the advertising and promotional spaces, including issuing a final rule and a
guidance on risk and efficacy disclosures in direct-to-consumer advertising, and a guidance on communication of off-label
scientific  information  about  approved  products.  The  FDA  and  other  agencies  actively  enforce  the  laws  and  regulations
prohibiting the promotion of off-label uses, and a company that is found to have improperly promoted off-label uses may
be subject to significant liability, including, but not limited to, criminal fines and civil penalties under the FDCA and False
Claims Act, exclusion from participation in federal healthcare programs, mandatory compliance programs under corporate
integrity  agreements,  suspension  and  debarment  from  government  procurement  and  non-procurement  programs,  and
refusal of orders under existing government contracts.

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

Later  discovery  of  previously  unknown  problems  with  a  product,  including  adverse  events  of  unanticipated
severity or frequency, or with manufacturing processes, or failure to comply with regulatory requirements before or after
approval, may result in significant regulatory actions. Such actions may include refusal to approve pending applications,
license or approval suspension or revocation, imposition of a clinical hold or termination of clinical trials, warning letters,
untitled  letters,  cyber  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,  consent  decrees,  corporate  integrity
agreements, suspension and debarment from government procurement and non-procurement programs, refusal of orders
under  existing  government  contracts,  exclusion  from  participation  in  federal  and  state  healthcare  programs,  restitution,
disgorgement, civil penalties, criminal prosecution, including fines and imprisonment, and adverse publicity, among other
adverse consequences.

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Additional Controls for Biologics

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.

Patent Term Restoration

If approved, biologic products may also be eligible for periods of U.S. patent term restoration. If an application for
patent  term  restoration  is  timely  filed  with  the  U.S.  Patent  and  Trademark  Office  and  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 complete 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.

Anti-Kickback Provisions and other Fraud and Abuse Requirements

The federal Anti-Kickback Statute is a criminal statute that prohibits, among other things, knowingly and willfully
offering, paying, soliciting, or receiving 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 healthcare item or service
reimbursable  under  Medicare,  Medicaid  or  other  federally  financed  healthcare  programs,  in  whole  or  in  part.  The  term
“remuneration” has been interpreted broadly to include anything of value. The Anti-Kickback Statute has been interpreted
to apply to arrangements between biopharmaceutical industry members on the one hand and prescribers, purchasers, and
formulary managers on the other. The Beneficiary Inducement Civil Monetary Penalties Law imposes similar restrictions
on  interactions  between  the  biopharmaceutical  industry  and  federal  healthcare  program  beneficiaries.  There  are  certain
statutory  exceptions  and  regulatory  safe  harbors  to  the  Anti-Kickback  Statute  protecting  some  common  activities  from
prosecution.  The  exceptions  and  safe  harbors  are  drawn  narrowly,  and  practices  that  involve  remuneration  that  may  be
alleged to be intended to induce or reward prescribing, purchases, or recommendations 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 Anti-Kickback Statute. Instead, the
legality  of  the  arrangement  will  be  evaluated  on  a  case-by-case  basis  based  on  a  cumulative  review  of  all  its  facts  and
circumstances.

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Several courts have interpreted the statute’s intent requirement to mean that if any one purpose of an arrangement
involving  remuneration  is  to  induce  or  reward  referrals  of  federal  healthcare  program  business,  including  purchases  of
products  paid  by  federal  healthcare  programs,  the  statute  has  been  violated.  The  Patient  Protection  and  Affordable  Care
Act,  of  2010,  as  amended,  (the  “ACA”)  modified  the  intent  requirement  under  the  Anti-Kickback  Statute  to  a  stricter
standard, such that a person or entity no longer needs to have actual knowledge of the statute or specific intent to violate it
to have committed a violation. In addition, the ACA also provided that a violation of the federal Anti-Kickback Statute is
grounds for the government or a whistleblower to assert that a claim for reimbursement submitted to a federal healthcare
program for payment of items or services resulting from such violation constitutes a per se false or fraudulent claim for
purposes  of  the  federal  civil  False  Claims  Act.  The  Department  of  Health  and  Human  Services  (“HHS”)  promulgated  a
regulation in November 2020 with respect to the safe harbors that is effective in two phases. First, the regulation excludes
from  the  definition  of  “remuneration”  limited  categories  of  (a)  Pharmacy  Benefit  Manager  (“PBM”)  rebates  or  other
reductions in price to a plan sponsor under Medicare Part D or a Medicaid Managed Care Organization plan reflected in
point-of-sale reductions in price and (b) PBM service fees. Second, the regulation expressly provides that rebates to plan
sponsors under Medicare Part D, either directly to the plan sponsor under Medicare Part D or indirectly through a PBM,
will not be protected under the Anti-Kickback Statute discount safe harbor. The Inflation Reduction Act of 2022 extended a
moratorium on the implementation, administration or enforcement of this final rule until January 1, 2032.

The federal civil False Claims Act prohibits any person from knowingly presenting, or causing to be presented, a
false or fraudulent claim for payment to, or approval by, the federal government, knowingly making, using, or causing to
be made or used a false record or statement material to a false or fraudulent claim to the federal government, 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 to the U.S. government. The civil False Claims Act has been used to assert liability on the
basis  of  kickbacks  and  other  improper  referrals,  improperly  reported  government  pricing  metrics  such  as  Best  Price  or
Average Manufacturer Price, improper use of Medicare provider or supplier numbers when detailing a provider of services,
improper  promotion  of  off-label  uses  not  expressly  approved  by  the  FDA  in  a  product’s  label,  and  allegations  as  to
misrepresentations with respect to products, contract requirements, and services rendered. In addition, private payers have
been filing follow-on lawsuits alleging fraudulent misrepresentation, although establishing liability and damages in these
cases  is  more  difficult  than  under  the  FCA.  Intent  to  deceive  is  not  required  to  establish  liability  under  the  civil  False
Claims Act. Rather, a claim may be false for deliberate ignorance of the truth or falsity of the information provided or for
acts in reckless disregard of the truth or falsity of that information. Civil False Claims Act actions may be brought by the
government  or  may  be  brought  by  private  individuals  on  behalf  of  the  government,  called  “qui  tam”  actions.  If  the
government decides to intervene in a qui tam action and prevails in the lawsuit, the individual will share in the proceeds
from any damages, penalties or settlement funds. If the government declines to intervene, the individual may pursue the
case  alone.  The  civil  FCA  provides  for  treble  damages  and  a  civil  penalty  for  each  false  claim,  such  as  an  invoice  or
pharmacy  claim  for  reimbursement,  which  can  aggregate  into  tens  and  even  hundreds  of  millions  of  dollars.  For  these
reasons,  since  2004,  False  Claims  Act  lawsuits  against  biopharmaceutical  companies  have  increased  significantly  in
volume and breadth, leading to several substantial civil and criminal settlements, as much as $3.0 billion, regarding certain
sales practices and promoting off label uses. Civil False Claims Act liability may further be imposed for known Medicare
or Medicaid overpayments, for example, overpayments caused by understated rebate amounts, that are not refunded within
60  days  of  the  identification  the  overpayment,  even  if  the  overpayment  was  not  caused  by  a  false  or  fraudulent  act.  In
addition, civil judgment for violating the FCA may result in exclusion from federal healthcare programs, suspension and
debarment from government procurement and non-procurement programs, and refusal of orders under existing government
contracts. The majority of states also have statutes similar to the federal Anti-Kickback Statute and civil False Claims Act,
which  apply  to  items  and  services  reimbursed  under  Medicaid  and  other  state  programs,  or,  in  several  states,  apply
regardless of the payer.

The  government  may  further  prosecute  conduct  constituting  a  false  claim  under  the  criminal  False  Claims  Act.
The criminal False Claims Act prohibits the making or presenting of a claim to the government knowing such claim to be
false, fictitious, or fraudulent and, unlike the civil False Claims Act, requires proof of intent to submit a false claim.

The Civil Monetary Penalties Law is another potential statute under which biopharmaceutical companies may be
subject to enforcement. Among other things, the civil monetary penalties statue imposes fines against any person who is
determined to have knowingly presented, or caused to be presented, claims 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.

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Payment  or  reimbursement  of  prescription  therapeutics  by  Medicaid  or  Medicare  requires  sponsors  to  submit
certified pricing information to Centers of Medicare and Medicaid Services (“CMS”). The Medicaid Drug Rebate statute
requires sponsors to calculate and report price points, which are used to determine Medicaid manufacturer rebate payments
shared between the states and the federal government and Medicaid payment rates for certain therapeutics. For therapeutics
paid under Medicare Part B, sponsors must also calculate and report their Average Sales Price, which is used to determine
the  Medicare  Part  B  payment  rate.  In  addition,  therapeutics  covered  by  Medicaid  are  subject  to  an  additional  inflation
penalty  which  can  substantially  increase  rebate  payments.  For  certain  products,  including  those  approved  under  a  BLA
(including  biosimilars),  the  Veterans  Health  Care  Act  (the  “VHCA”)  requires  sponsors  to  calculate  and  report  to  the
Department of Veterans Affairs (“VA”) a different price called the Non-Federal Average Manufacturer Price, which is used
to determine the maximum price that can be charged to certain federal agencies, referred to as the Federal Ceiling Price
(“FCP”).  Like  the  Medicaid  rebate  amount,  the  FCP  includes  an  inflation  penalty.  A  Department  of  Defense  regulation
requires  sponsors  to  provide  this  discount  on  therapeutics  dispensed  by  retail  pharmacies  when  paid  by  the  TRICARE
Program.  All  these  price  reporting  requirements  create  risk  of  submitting  false  information  to  the  government,  potential
FCA liability and exclusion from certain of these programs.

The  VHCA  also  requires  sponsors  of  covered  therapeutics  participating  in  the  Medicaid  program  to  enter  into
Federal Supply Schedule contracts with the VA through which their covered therapeutics must be sold to certain federal
agencies  at  FCP.  This  necessitates  compliance  with  applicable  federal  procurement  laws  and  regulations,  including
submission  of  commercial  sales  and  pricing  information,  and  subjects  companies  to  contractual  remedies  as  well  as
administrative, civil, and criminal sanctions. In addition, the VHCA requires sponsors participating in Medicaid to agree to
provide different mandatory discounts to certain Public Health Service grantees and other safety net hospitals and clinics
under  the  340B  program  based  on  the  sponsor’s  reported  Medicaid  pricing  information.  The  340B  program  has  its  own
regulatory  authority  to  impose  sanctions  for  non-compliance,  adjudicate  overcharge  claims  against  sponsors  by  the
purchasing entities, and impose civil monetary penalties for instances of overcharging.

The federal Health Insurance Portability and Accountability Act of 1996, (“HIPAA”), also created federal criminal
statutes  that  prohibit,  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, a healthcare benefit program, regardless of whether the payor is public or
private, in connection with the delivery or payment for healthcare benefits, knowingly and willfully embezzling or stealing
from a healthcare benefit program, willfully obstructing a criminal investigation of a healthcare 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. Additionally, the ACA amended the intent requirement of certain of these criminal statutes under HIPAA so that a
person  or  entity  no  longer  needs  to  have  actual  knowledge  of  the  statute,  or  the  specific  intent  to  violate  it,  to  have
committed a violation.

In  addition,  as  part  of  the  ACA,  the  federal  government  enacted  the  Physician  Payment  Sunshine  Act.
Manufacturers of drugs, biologics and devices for which payment is available under Medicare, Medicaid, or the Children’s
Health  Insurance  Program  (with  certain  exceptions)  are  required  to  annually  report  to  CMS  certain  payments  and  other
transfers  of  value  made  to  or  at  the  request  of  covered  recipients,  which  are  physicians  (as  defined  under  the  Social
Security Act), physician assistants, nurse practitioners, clinical nurse specialists, certified registered nurse anesthetists and
certified  nurse  midwifes  licensed  in  the  U.S.  and  U.S.  teaching  hospitals,  as  well  as  ownership  and  investment  interests
held  by  physicians  and  members  of  their  immediate  family.  Payments  made  to  principal  investigators  and  research
institutions at teaching hospitals for clinical trials are also included within this law. Reported information is made publicly
available by CMS. Failure to submit required information may result in civil monetary penalties. If not preempted by this
federal  law,  several  states  currently  also  require  reporting  of  marketing  and  promotion  expenses,  as  well  as  gifts  and
payments  to  healthcare  professionals  and  organizations.  State  legislation  may  also  prohibit  gifts  and  various  other
marketing related activities or require the public posting of information. Certain states also require companies to implement
compliance programs.

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Further, we may be subject to data privacy and security regulation by both the federal government and the states in
which  we  conduct  our  business.  HIPAA,  as  amended  by  the  Health  Information  Technology  for  Economic  and  Clinical
Health  Act,  (“HITECH  Act”),  and  their  respective  implementing  regulations  impose  certain  requirements  on  covered
entities relating to the privacy, security, and transmission of certain individually identifiable health information known as
protected  health  information.  Among  other  things,  the  HITECH  Act,  and  its  implementing  regulations,  made  HIPAA’s
security  standards  and  certain  privacy  standards  directly  applicable  to  business  associates,  defined  as  persons  or
organizations,  other  than  members  of  a  covered  entity’s  workforce,  that  create,  receive,  maintain,  or  transmit  protected
health  information  on  behalf  of  a  covered  entity  for  a  function  or  activity  regulated  by  HIPAA.  The  HITECH  Act  also
strengthened  the  civil  and  criminal  sanctions  that  may  be  imposed  against  covered  entities,  business  associates,  and
individuals, and gave state attorneys general new authority to file civil actions for damages or injunctions in federal courts
to enforce the federal HIPAA laws and seek attorneys’ fees and costs associated with pursuing federal civil actions. HIPAA
privacy rules governing disclosures of protected health information by covered entities for research purposes may apply to
gene  therapy  studies.  In  addition,  other  federal  and  state  laws,  such  as  the  California  Consumer  Privacy  Act  and  state
security  breach  notification  laws,  may  govern  the  privacy  and  security  of  health  and  other  information  in  certain
circumstances, many of which differ from each other in significant ways, thus complicating compliance efforts.

Many states have also adopted laws similar to each of the above federal laws, which may be broader in scope and
apply  to  items  or  services  reimbursed  by  any  third-party  payor,  including  commercial  insurers.  Certain  state  laws  also
regulate sponsors’ use of prescriber-identifiable data. Certain states also require implementation of commercial compliance
programs  and  compliance  with  the  pharmaceutical  industry’s  voluntary  compliance  guidelines  and  the  applicable
compliance program guidance promulgated by the federal government, or otherwise restrict payments or the provision of
other items of value that may be made to healthcare providers and other potential referral sources; impose restrictions on
marketing practices; or require sponsors to track and report information related to payments, gifts, and other items of value
to  physicians  and  other  healthcare  providers  and  entities.  Recently,  states  have  enacted  or  are  considering  legislation
intended to make drug prices more transparent and deter significant price increases that impose reporting requirements on
biopharmaceutical  companies.  These  laws  may  affect  our  future  sales,  marketing,  and  other  promotional  activities  by
imposing administrative and compliance burdens. Such laws also typically impose significant civil monetary penalties for
each instance of reporting noncompliance that can quickly aggregate into the tens of millions of dollars.

If our operations are found to be in violation of any of the laws or regulations described above or any other laws
that apply to us, we may be subject to penalties or other enforcement actions, including significant civil monetary penalties,
damages,  criminal  fines,  disgorgement,  imprisonment,  exclusion  from  participation  in  government  healthcare  programs,
corporate integrity agreements, suspension and debarment from government procurement and non-procurement programs,
refusal of orders under existing government contracts, reputational harm, diminished profits and future earnings, and the
curtailment or restructuring of our operations, any of which could adversely affect our business.

U.S. Foreign Corrupt Practices Act

The U.S. Foreign Corrupt Practices Act, to which we are subject, imposes certain recordkeeping requirements and
prohibits  corporations  and  individuals  from  engaging  in  certain  activities  to  obtain  or  retain  business  or  to  influence  a
person working in an official capacity. It is illegal to pay, offer to pay or authorize the payment of anything of value to any
foreign  government  official,  government  staff  member,  political  party,  or  political  candidate  in  an  attempt  to  obtain  or
retain business or to otherwise influence a person working in an official capacity.

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Coverage, Pricing and Reimbursement

The  containment  of  healthcare  costs  has  become  a  priority  of  federal,  state,  and  foreign  governments,  and  the
prices  of  drugs  have  been  a  focus  in  this  effort.  Third-party  payers  and  independent  non-profit  healthcare  research
organizations such as the Institute for Clinical and Economic Review are also increasingly challenging the prices charged
for medical products and services and examining the medical necessity, budget-impact, and cost-effectiveness of medical
products and services, in addition to their safety and efficacy. If these third-party payers do not consider a product to be
cost-effective  compared  to  other  available  therapies  and/or  the  standard  of  care,  they  may  not  cover  the  product  after
approval as a benefit under their plans or, if they do, measures including prior authorization and step-throughs could be
required, manufacturer rebates may be negotiated or required and/or the level of payment may not be sufficient to allow a
company  to  sell  its  products  at  a  profit.  The  U.S.  federal  and  state  governments  and  foreign  governments  have  shown
significant  interest  in  implementing  cost  containment  programs  to  limit  the  growth  of  government-paid  healthcare  costs,
including price controls, restrictions on coverage and reimbursement and requirements for substitution of generic products
for  branded  prescription  drugs.  In  this  regard,  for  example,  on  November  27,  2020,  CMS  issued  an  interim  final  rule
implementing a Most Favored Nation payment model under which reimbursement for certain Medicare Part B drugs and
biologicals will be based on a price that reflects the lowest per capital Gross Domestic Product-adjusted (“GDP-adjusted”)
price of any non-U.S. member country of the Organization for Economic Co-operation and Development (“OECD”) with a
GDP  per  capita  that  is  at  least  sixty  percent  of  the  U.S.  GDP  per  capita.  While  this  rule  now  has  been  rescinded,
government  negotiation  of  certain  Medicare  drug  pricing  continues  to  be  the  focus  of  recent  proposed  legislation.  The
Budget  Control  Act  of  2011,  among  other  things,  created  measures  for  spending  reductions  by  Congress.  Failure  of  the
Joint Select Committee on Deficit Reduction to reach required deficit reduction goals triggered the legislation’s automatic
reduction to several government programs. This includes aggregate reductions of Medicare payments to providers up to 2%
per fiscal year. While President Biden previously signed legislation to eliminate this reduction through the end of 2021, a
1%  payment  adjustment  was  implemented  from  April  1  –  June  30,  2022,  and  a  2%  payment  adjustment  took  effect
beginning  July  1,  2022.  Adoption  of  additional  healthcare  reform  controls  and  measures  and  tightening  of  restrictive
policies in jurisdictions with existing controls and measures, could limit payments for pharmaceuticals.

As a result, the marketability of any product which receives regulatory approval for commercial sale may suffer if
the  government  and  third-party  payers  choose  to  provide  low  coverage  and  reimbursement.  In  addition,  an  increasing
emphasis on managed care in the U.S. has increased and will continue to increase the pressure on drug pricing. Decisions
regarding whether to cover any of our products, the extent of coverage and amount of reimbursement to be provided are
made on a plan-by-plan basis. Further, no uniform policy for coverage and reimbursement exists in the U.S., and coverage
and  reimbursement  can  differ  significantly  from  payor  to  payor.  Coverage  policies,  third  party  reimbursement  rates  and
drug  pricing  regulation  may  change  at  any  time.  In  particular,  the  ACA  contains  provisions  that  may  reduce  the
profitability of drug products, including, for example, increased rebates for drugs sold to Medicaid programs, extension of
Medicaid  rebates  to  Medicaid  managed  care  plans,  mandatory  discounts  for  certain  Medicare  Part  D  beneficiaries  and
annual fees based on pharmaceutical companies’ share of sales to federal healthcare programs. Multiple other current and
proposed legislative and regulatory efforts require and likely will in the future require payment of increased manufacturer
rebates and implement mechanisms to reduce drug prices. Even if favorable coverage and reimbursement status is attained
for one or more products that receive regulatory approval, less favorable coverage policies and reimbursement rates may be
implemented in the future.

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Regulation in the European Union

Product  development,  the  regulatory  approval  process  and  safety  monitoring  of  medicinal  products  and  their
manufacturers in the European Union proceed broadly in the same way as they do in the U.S. Therefore, many of the issues
discussed above apply similarly in the context of the European Union. In addition, drugs are subject to the extensive price
and  reimbursement  regulations  of  the  various  EU  member  states.  The  Clinical  Trial  Regulation  EU  536/2014  (“CTR”),
which replaced the Clinical Trials Directive 2001/20/EC, as amended (“CTD”), on January 31, 2022, provides a system for
the approval of clinical trials in the European Union. The CTR is directly applicable in all member states without the need
for  national  implementation.  Whilst,  for  trials  conducted  in  only  one  country,  approval  has  to  be  obtained  from  the
competent national authority of an EU member state in which the clinical trial is to be conducted before cross-border trials
within the EU, it is possible to make a single harmonized electronic submission and have a single assessment process for
clinical  trials  conducted  in  multiple  member  states.  Furthermore,  a  clinical  trial  may  only  be  started  after  a  competent
ethics committee has issued a favorable opinion on the Clinical Trial Application (“CTA”), which must be supported by an
investigational medicinal product dossier with supporting information prescribed by the CTR and corresponding national
laws  of  the  member  states  and  further  detailed  in  applicable  guidance  documents.  In  the  case  of  Advanced  Therapy
Investigational Medical Products (“ATIMPs”) consisting of or containing Genetically Modified Organisms (“GMOs”), as
is the case for our products, an additional approval for the environmental and biosafety aspects of the use and release of the
GMO  is  required  by  the  GMO  competent  authorities  and  GMO  directives  have  been  implemented  in  different  ways  by
Member  States;  either  following  the  directive  for  “Contained  use”  (Directive  2009/41/EC)  or  “deliberate  release”
(Directive 2001/18/EC). As a consequence, in some EU member states the GMO application must be approved before the
CTA is submitted, in some after approval of the CTA, and in some, in parallel.

The sponsor of a clinical trial, or its legal representative, must be based in the European Economic Area (“EEA”).
European regulators and ethics committees also require the submission of adverse event reports during a study and a copy
of the final study report. Under the CTR, member states may dispense with the requirement for a legal representative for a
non-EU resident sponsor provided there is a contact person based in the EEA.

Under  the  CTR,  the  introduction  of  a  new  databased  called  the  Clinical  Trial  Information  System  (“CTIS”),
requires sponsors to upload and submit all data, including initial clinical trial application data and documentation, to the
CTIS,  with  such  data  being  publicly  available,  with  few  exceptions.  This  means  data  transparency  throughout  the
development process with the onus on sponsors to protect patient confidentiality at the point of submission.

Marketing approval

Marketing  approvals  under  the  European  Union  regulatory  system  may  be  obtained  through  a  centralized  or
decentralized procedure. The centralized procedure results in the grant of a single marketing authorization that is valid for
all 27 EU member states. Pursuant to Regulation (EC) No 726/2004, as amended, the centralized procedure is mandatory
for drugs developed by means of specified biotechnological processes, and advanced therapy medicinal products as defined
in  Regulation  (EC)  No  1394/2007,  as  amended.  Drugs  for  human  use  containing  a  new  active  substance  for  which  the
therapeutic  indication  is  the  treatment  of  specified  diseases,  including  but  not  limited  to  acquired  immune  deficiency
syndrome, neurodegenerative disorders, auto-immune diseases and other immune dysfunctions, as well as drugs designated
as  orphan  drugs  pursuant  to  Regulation  (EC)  No  141/2000,  as  amended,  also  fall  within  the  mandatory  scope  of  the
centralized  procedure.  Because  of  our  focus  on  gene  therapies,  which  fall  within  the  category  of  advanced  therapy
medicinal products (“ATMPs”) and orphan indications, our products and product candidates will need to go through the
centralized procedure.

In the marketing authorization application (“MAA”) the applicant must properly and sufficiently demonstrate the
quality, safety, and efficacy of the drug. Guidance on the factors that the EMA will consider in relation to the development
and  evaluation  of  ATMPs  have  been  issued  and  include,  among  other  things,  the  nonclinical  studies  required  to
characterize  ATMPs;  the  manufacturing  and  control  information  that  should  be  submitted  in  a  MAA;  and  post-approval
measures  required  to  monitor  patients  and  evaluate  the  long-term  efficacy  and  potential  adverse  reactions  of  ATMPs.
Although these guidelines are not legally binding, we believe that our compliance will effectively be necessary to gain and
maintain approval for any of our product candidates. The maximum timeframe for the evaluation of an MAA under the
centralized procedure is 210 days after receipt of a valid application subject to clock stops during which the applicant deals
with EMA questions.

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Market access can be expedited through the grant of conditional authorization for a medicine that may fulfil unmet
needs which may be granted provided that the benefit-risk balance of the product is positive. The benefit-risk balance is
likely  to  be  positive  if  the  applicant  can  provide  comprehensive  data  and  the  benefit  to  public  health  of  the  medicinal
product's  immediate  availability  on  the  market  outweighs  the  risks  due  to  need  for  further  data.  Such  authorizations  are
valid for one year and can be renewed annually. The holder will be required to complete specific obligations (ongoing or
new  studies,  and  in  some  cases  additional  activities)  with  a  view  to  providing  comprehensive  data  confirming  that  the
benefit-risk balance is positive. Once comprehensive data on the product have been obtained, the marketing authorization
may be converted into a standard marketing authorization (not subject to specific obligations). Initially, this is valid for 5
years, but can be renewed for unlimited validity. Applicants for conditional authorizations can benefit from early dialogue
with  EMA  through  scientific  advice  or  protocol  assistance  and  discuss  their  development  plan  well  in  advance  of  the
submission of a marketing-authorization application. Other stakeholders (e.g., health technology assessment bodies) can be
included.

In addition, the priority medicines (“PRIME”) scheme for medicines that may offer a major therapeutic advantage
over existing treatments, or benefit patients without treatment options based on early clinical data, is intended to support
the development of medicines that target an unmet medical need. This voluntary scheme is based on enhanced interaction
and  early  dialogue  with  developers  of  promising  medicines,  to  optimize  development  plans  and  speed  up  evaluation  so
these medicines can reach patients earlier. Early dialogue and scientific advice also ensure that patients only participate in
trials designed to provide the data necessary for an application, making the best use of limited resources.

The  European  Union  also  provides  for  a  system  of  regulatory  data  and  market  exclusivity.  According  to
Article 14(11) of Regulation (EC) No 726/2004, as amended, and Article 10 of Directive 2001/83/EC, as amended, upon
receiving  marketing  authorization,  new  chemical  entities  approved  on  the  basis  of  complete  independent  data  package
benefit from eight years of data exclusivity and an additional two years of market exclusivity. Data exclusivity prevents
regulatory  authorities  in  the  European  Union  from  referencing  the  innovator’s  data  to  assess  a  generic  (abbreviated)
application  during  the  eight-year  period  from  when  the  first  placement  of  the  product  on  the  EEA  market.  During  the
additional two-year period of market exclusivity, a generic marketing authorization can be submitted, and the innovator’s
data may be referenced, but no generic medicinal product can be marketed until the expiration of the market exclusivity.
The  overall  ten-year  period  will  be  extended  to  a  maximum  of  eleven  years  if,  during  the  first  eight  years  of  those  ten
years,  the  marketing  authorization  holder  obtains  an  authorization  for  one  or  more  new  therapeutic  indications  which,
during  the  scientific  evaluation  prior  to  their  authorization,  are  held  to  bring  a  significant  clinical  benefit  in  comparison
with existing therapies. Even if a compound is considered to be a new chemical entity and the innovator can gain the period
of data exclusivity, another company nevertheless could also market another version of the drug if such company obtained
marketing authorization based on an MAA with a complete independent data package of pharmaceutical test, preclinical
tests, and clinical trials. The EMA has also issued guidelines for a comprehensive comparability exercise for biosimilars,
and  for  specific  classes  of  biological  products.  Under  European  Commission  proposals  for  revisions  to  the  EU’s
pharmaceutical legislation, the standard period of data protection may be reduced from eight to six years, but this may be
extended by up to four years if particular criteria are fulfilled: i.e., two additional years if the new product is available in all
EU Member States; an additional six months if the product addresses an unmet medical need; an additional six months for
new  chemical  entities  where  the  supporting  clinical  trials  use  an  evidence-based  comparator  based  on  EMA  scientific
advice;  and  an  additional  year  if,  during  the  data  protection  period  following  authorization,  the  marketing  authorization
(“MA”)  holder  receives  an  authorization  for  an  additional  therapeutic  indication  for  which  there  is  a  significant  clinical
benefit  in  comparison  with  existing  therapies  (replacing  the  additional  year  of  marketing  protection  available  under  the
current  regime).    The  additional  period  of  marketing  exclusivity  protection  (described  above)  will  remain  as  two  years
following  the  expiry  of  the  data  protection  period.  These  proposals  will  be  subject  to  continuing  discussion  so  it  is  not
certain when and in what form the new legislation will be adopted.

Under  Regulation  (EC)  No  141/2000  article  3  as  amended  (Orphan  Drug  Regulation,  (“ODR”))  a  product  can
benefit  from  orphan  drug  status  if  it  is  intended  for  the  diagnosis,  prevention,  or  treatment  of  a  life-threatening  or
chronically debilitating condition affecting not more than five in 10,000 people in the European Community (EC) when the
application is made. The principal benefit of such status is 10 years’ market exclusivity once they are approved preventing
the  subsequent  approval  of  similar  medicines  with  similar  indications  although  this  may  be  reduced  to  six  years  under
certain  circumstances  including  if  the  product  is  sufficiently  profitable  not  to  justify  maintenance  of  market  exclusivity.
Under the proposed new legislation, other than for orphan drugs addressing a high unmet medical need, the current 10-year
period would be reduced to nine years. These periods may be extended by one year if either: the new product is available in
all  EU  member  states;  or  at  least  two  years  before  the  expiry  of  the  orphan  exclusivity  period,  the  orphan  MA  holder
obtains an MA for one or more further therapeutic indications for a different orphan condition.

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Additional rules apply to medicinal products for pediatric use under Regulation (EC) No 1901/2006, as amended.
Potential  incentives  include  a  six-month  extension  of  any  supplementary  protection  certificate  granted  pursuant  to
Regulation (EC) No 469/2009, however not in cases in which the relevant product is designated as an orphan medicinal
product pursuant to the ODR. Instead, medicinal products designated as orphan medicinal product may enjoy an extension
of the ten-year market exclusivity period granted under Regulation (EC) No 141/2000, as amended, to twelve years subject
to the conditions applicable to orphan drugs. The proposed new legislation will retain the 6-month SPC extension but  there
would be an explicit obligation to place an authorized product with a pediatric indication on the market in every member
state where the adult presentation is marketed.  Additionally, the current separate reward of two years market exclusivity
for pediatric indications of orphan products would no longer apply under the proposed legislation.

Manufacturing and promotion

Pursuant  to  European  Commission  Directive  2003/94/EC  as  transposed  into  the  national  laws  of  the  member
states, the manufacturing of investigational medicinal products and approved drugs is subject to a separate manufacturer’s
license and must be conducted in strict compliance with cGMP requirements, which mandate the methods, facilities, and
controls used in manufacturing, processing, and packing of drugs to assure their safety and identity. Manufacturers must
have  at  least  one  qualified  person  permanently  and  continuously  at  their  disposal.  The  qualified  person  is  ultimately
responsible  for  certifying  that  each  batch  of  finished  product  released  onto  the  market  has  been  manufactured  in
accordance with cGMP and the specifications set out in the marketing authorization or investigational medicinal product
dossier.  cGMP  requirements  are  enforced  through  mandatory  registration  of  facilities  and  inspections  of  those  facilities.
Failure  to  comply  with  these  requirements  could  interrupt  supply  and  result  in  delays,  unanticipated  costs,  and  lost
revenues,  and  subject  the  applicant  to  potential  legal  or  regulatory  action,  including  but  not  limited  to  warning  letters,
suspension of manufacturing, seizure of product, injunctive action, or possible civil and criminal penalties.

Advertising

In  the  European  Union,  the  promotion  of  prescription  medicines  is  subject  to  intense  regulation  and  control,
including a prohibition on direct-to-consumer advertising. All medicines advertising must be consistent with the product’s
approved  summary  of  products  characteristics,  factual,  accurate,  balanced  and  not  misleading.  Advertising  of  medicines
pre-approval or off-label is prohibited. Some jurisdictions require that all promotional materials for prescription medicines
be subjected to either prior internal or regulatory review & approval.

Other Regulatory Requirements

A holder of a marketing authorization for a medicinal product is legally obliged to fulfill several obligations by
virtue of its status as a marketing authorization holder (“MAH”). The MAH can delegate the performance of related tasks
to third parties, such as distributors or marketing collaborators, provided that this delegation is appropriately documented
and the MAH maintains legal responsibility and liability.

The obligations of an MAH include:

● Manufacturing and Batch Release. MAHs should guarantee that all manufacturing operations comply with
relevant laws and regulations, applicable good manufacturing practices, with the product specifications and
manufacturing conditions set out in the marketing authorization and that each batch of product is subject to
appropriate release formalities.

● Pharmacovigilance. MAHs  are  obliged  to  establish  and  maintain  a  pharmacovigilance  system,  including  a
qualified  person  responsible  for  oversight,  to  submit  safety  reports  to  the  regulators  and  comply  with  the
good pharmacovigilance practice guidelines adopted by the EMA.

● Advertising and Promotion. MAHs  remain  responsible  for  all  advertising  and  promotion  of  their  products,
including promotional activities by other companies or individuals on their behalf and in some cases, must
conduct internal or regulatory pre-approval of promotional materials.

● Medical Affairs/Scientific Service. MAHs are required to disseminate scientific and medical information on

their medicinal products to healthcare professionals, regulators, and patients.

● Legal  Representation  and  Distributor  Issues.  MAHs  are  responsible  for  regulatory  actions  or  inactions  of

their distributors and agents.

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● Preparation,  Filing  and  Maintenance  of  the  Application  and  Subsequent  Marketing  Authorization.  MAHs
must  maintain  appropriate  records,  comply  with  the  marketing  authorization’s  terms  and  conditions,  fulfill
reporting obligations to regulators, submit renewal applications and pay all appropriate fees to the authorities.

We may hold any future marketing authorizations granted for our product candidates in our own name or appoint
an affiliate or a collaborator to hold marketing authorizations on our behalf. Any failure by an MAH to comply with these
obligations  may  result  in  regulatory  action  against  an  MAH  and  ultimately  threaten  our  ability  to  commercialize  our
products.

Reimbursement

In  the  European  Union,  the  pricing  and  reimbursement  mechanisms  by  private  and  public  health  insurers  vary
largely  by  country  and  even  within  countries.  In  respect  of  the  public  systems,  reimbursement  for  standard  drugs  is
determined  by  guidelines  established  by  the  legislature  or  responsible  national  authority.  Some  jurisdictions  operate
positive  and  negative  list  systems  under  which  products  may  only  be  marketed  once  a  reimbursement  price  has  been
agreed. Other member states allow companies to determine the prices for their medicines but monitor and control company
profits  and  may  limit  or  restrict  reimbursement  and  can  include  retrospective  rebates  to  the  government.  The  downward
pressure on healthcare costs in general, particularly prescription drugs, has become very intense. As a result, increasingly
high barriers are being erected to the entry of new products and some of EU countries require the completion of studies that
compare the cost-effectiveness of a particular product candidate to currently available therapies to obtain reimbursement or
pricing approval. Special pricing and reimbursement rules may apply to orphan drugs.

Inclusion of orphan drugs in reimbursement systems tend to focus on the medical usefulness, need, quality and
economic  benefits  to  patients  and  the  healthcare  system  as  for  any  drug.  Acceptance  of  any  medicinal  product  for
reimbursement  may  come  with  cost,  use  and  often  volume  restrictions,  which  again  can  vary  by  country.  In  addition,
results-based  rules  or  agreements  on  reimbursement  may  apply.  Recently,  a  process  has  been  formalized  that  allows
sponsors  to  receive  parallel  advice  from  EMA  and  relevant  national  health  technology  assessment  (“HTA”)  bodies  for
pivotal clinical studies designed to support marketing approval. This process was followed for etranacogene dezaparvovec.

Orphan Drug Regulation

We have been granted orphan drug exclusivity for etranacogene dezaparvovec for the treatment of hemophilia B
as  well  as  for  AMT-130  for  the  treatment  of  Huntington’s  disease  subject  to  the  conditions  applicable  to  orphan  drug
exclusivity in the European Union. Regulation (EC) No 141/2000, as amended, states that a drug will be designated as an
orphan drug if its sponsor can establish:

● that it is intended for the diagnosis, prevention or treatment of a life-threatening or chronically debilitating
condition  affecting  not  more  than  five  in  ten  thousand  persons  in  the  community  when  the  application  is
made,  or  that  it  is  intended  for  the  diagnosis,  prevention  or  treatment  of  a  life-threatening,  seriously
debilitating or serious and chronic condition in the European Union and that without incentives it is unlikely
that the marketing of the drug in the European Union would generate sufficient return to justify the necessary
investment; and

● that there exists no satisfactory method of diagnosis, prevention, or treatment of the condition in question that
has  been  authorized  in  the  European  Union  or,  if  such  method  exists,  that  the  drug  will  be  of  significant
benefit to those affected by that condition.

Regulation (EC) No 847/2000 sets out further provisions for implementation of the criteria for designation of a
drug as an orphan drug. An application for the designation of a drug as an orphan drug must be submitted at any stage of
development of the drug before filing of a marketing authorization application.

If an EU-wide community marketing authorization in respect of an orphan drug is granted pursuant to Regulation
(EC)  No  726/2004,  as  amended,  the  European  Union  and  the  member  states  will  not,  for  a  period  of  10  years,  accept
another application for a marketing authorization, or grant a marketing authorization or accept an application to extend an
existing marketing authorization, for the same therapeutic indication, in respect of a similar drug.

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This period may however be reduced to six years if, at the end of the fifth year, it is established, in respect of the
drug concerned, that the criteria for orphan drug designation are no longer met, in other words, when it is shown on the
basis  of  available  evidence  that  the  product  is  sufficiently  profitable  not  to  justify  maintenance  of  market  exclusivity.
Notwithstanding the foregoing, a marketing authorization may be granted, for the same therapeutic indication, to a similar
drug if:

● the  holder  of  the  marketing  authorization  for  the  original  orphan  drug  has  given  its  consent  to  the  second

applicant;

● the holder of the marketing authorization for the original orphan drug is unable to supply sufficient quantities

of the drug; or

● the second applicant can establish in the application that the second drug, although similar to the orphan drug

already authorized, is safer, more effective, or otherwise clinically superior.

Regulation (EC) No 847/2000 lays down definitions of the concepts similar drug and clinical superiority, which
concepts  have  been  expanded  upon  in  subsequent  European  Commission  guidance.  Other  incentives  available  to  orphan
drugs in the European Union include financial incentives such as a reduction of fees or fee waivers and protocol assistance.
Orphan  drug  designation  does  not  shorten  the  duration  of  the  regulatory  review  and  approval  process.  Note  the  above
proposed legislation would, if implemented, impact orphan protection in the future.

Human Capital Resources

As of December 31, 2023, we had a total of 480 employees, 239 of whom are based in The Netherlands, 221 in
the U.S. and 20 in other European countries. The split of employees between operations, clinical development, pre-clinical
and technology and general and administrative functions are included below:

Operations
Clinical development
Pre-clinical development and technology
General and administrative
Total

December 31, 
2023

December 31, 
2022

258
60
64
98
480

279
43
89
90
501

As of December 31, 2023, 170 of our employees had an M.D. or Ph.D. degree, or the foreign equivalent. During
2017,  we  established  a  works  council  in  the  Netherlands.  None  of  our  employees  are  subject  to  collective  bargaining
agreements or other labor organizations. We believe that we have good relations with all our employees and with the works
council in the Netherlands.

Our values are to:
● Be passionate about the patient;
● Act with integrity and respect;
● Take ownership and act with urgency;
● Collaborate for success;
● Innovate every day; and
● Focus relentlessly on quality.

Our people are a critical component in our continued success. We strive to maximize the potential of our human
capital resources by creating a respectful, rewarding and inclusive work environment that enables our employees to further
our values. Development of our culture is reflected as part of our annual corporate goals. We invest in numerous learning
opportunities focused on individual, management and team development and other initiatives to support our employees and
build  our  culture.  In  2021  we  initiated  activities  to  coordinate  our  various  ongoing  activities  and  initiatives  within  an
environmental, social and governance (“ESG”) framework.

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Additional Information

uniQure B.V. (the “Company”) was incorporated on January 9, 2012 as a private company with limited liability
(besloten vennootschap met beperkte aansprakelijkheid) under the laws of the Netherlands. We are a leader in the field of
gene  therapy  and  seek  to  deliver  to  patients  suffering  from  rare  and  other  devastating  diseases  single  treatments  with
potentially curative results. Our business was founded in 1998 and was initially operated through our predecessor company,
Amsterdam Molecular Therapeutics Holding N.V (“AMT”). In 2012, AMT undertook a corporate reorganization, pursuant
to which uniQure B.V. acquired the entire business and assets of AMT and completed a share-for-share exchange with the
shareholders  of  AMT.  Effective  February  10,  2014,  in  connection  with  the  initial  public  offering,  we  converted  into  a
public company with limited liability (naamloze vennootschap) and changed its legal name from uniQure B.V. to uniQure
N.V.

We  are  registered  in  the  trade  register  of  the  Dutch  Chamber  of  Commerce  (Kamer  van  Koophandel)  under
number  54385229.  Our  headquarters  are  in  Amsterdam,  the  Netherlands,  and  its  registered  office  is  located  at
Paasheuvelweg 25, Amsterdam 1105 BP, the Netherlands and its telephone number is +31 20 240 6000.

Our  website  address  is  www.uniqure.com.  We  make  available  free  of  charge  through  our  investor  website  our
annual reports on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K, proxy statements for our
meetings of shareholders, and any amendments to these reports, as soon as reasonably practicable after we electronically
file such material with, or furnish such material to, the SEC. The SEC maintains a website at www.sec.gov that contains
reports, proxy and information statements and other information regarding uniQure and other issuers that file electronically
with the SEC.

We currently announce material information to our investors and others using filings with the SEC, press releases,
public conference calls, webcasts, or our investor relations website (uniqure.com/investors-media). Also available through
our  website’s  “Investors  &  Newsroom:  Corporate  Governance”  page  are  charters  for  the  Audit,  Compensation  and
Nominating and Corporate Governance committees of our board of directors (the “Board”), along with a copy of our Code
of Business Conduct and Ethics, available at uniqure.com/investors-media/corporate-governance. The information on our
website is not part of, nor shall it be deemed to be incorporated by reference into, this Annual Report on Form 10-K or any
other filings with the SEC.  

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Item 1A.  Risk Factors.

An investment in our ordinary shares involves a high degree of risk. You should carefully consider the following
information about these risks, together with the other information appearing elsewhere in this Annual Report on Form 10-
K,  including  our  financial  statements  and  related  notes  thereto,  before  deciding  to  invest  in  our  ordinary  shares.  We
operate  in  a  dynamic  and  rapidly  changing  industry  that  involves  numerous  risks  and  uncertainties.  The  risks  and
uncertainties described below are not the only ones we face. Other risks and uncertainties, including those that we do not
currently  consider  material,  may  impair  our  business.  If  any  of  the  risks  discussed  below  actually  occur,  our  business,
financial condition, operating results, or cash flows could be materially adversely affected. This could cause the value of
our securities to decline, and you may lose all or part of your investment.

Risks Related to the Development of Our Product Candidates

We  are  dependent  on  the  success  of  our  lead  product  candidate  in  clinical  development,  AMT-130  for  the
treatment  of  Huntington’s  disease.  A  failure  of  AMT-130  in  clinical  development,  challenges  associated  with  its
regulatory  pathway,  or  its  inability  to  demonstrate  sufficient  efficacy  to  warrant  further  clinical  development  could
adversely affect our business.

We have invested a significant portion of our development efforts and financial resources in the development of
our lead clinical product candidate, AMT-130. In December 2023, we announced updated interim data from our ongoing
Phase I/II clinical trials of AMT-130, including 30 months of follow-up data from the 39 patients then enrolled in our trials
in the U.S. and in Europe. We also announced our plans to continue enrollment in a third cohort to investigate AMT-130 in
combination with perioperative immune suppression to evaluate near-term safety, along with our plans to initiate regulatory
interactions with the FDA and EMA to discuss the interim data and strategies for ongoing development of AMT-130.

There are numerous factors that could impede or otherwise negatively impact our further development of AMT-
130, including, but not limited to, patient safety issues, our failure to demonstrate sufficient clinical efficacy or durability
of  response  data  to  warrant  further  development,  delays  in  our  ability  to  enroll  patients  or  challenges  with  regulatory
authorities.  Any  one  or  combination  of  these  factors  could  force  us  to  halt  or  discontinue  the  ongoing  clinical  trials  of
AMT-130.  Certain  of  these  risk  factors  are  heightened  in  the  context  of  drug  development  for  rare  diseases  like
Huntington’s disease in which non-traditional study designs are utilized to demonstrate efficacy and safety, including open-
label studies, single arm studies, studies utilizing active comparators or natural history data, biomarkers or other forms of
surrogate endpoints, which may be utilized due to the challenges inherent in designing and conducting clinical trials for
severe diseases that progress slowly and that affect small patient populations. For example, in the course of our interactions
with the FDA and EMA, the regulatory authorities may disagree with our interpretation of the interim safety and efficacy
data we have received to date. Since AMT-130 is based on our novel gene therapy technology, we are unable predict how
regulatory  authorities  will  interpret  our  data  or  whether  they  will  agree  with  our  interim  conclusions  or  trial  design  or
whether those data may be utilized in later-stage or registrational trials. We may be required by such regulatory authorities
to conduct additional randomized studies of AMT-130 beyond our existing clinical trials, which would be costly and would
significantly  delay  the  potential  approval  of  AMT-130.  We  may  not  be  able  to  commit  sufficient  capital  to  support
additional clinical studies of AMT-130, in which case we may need to secure a development partner for AMT-130. Such
partnerships may not be available, in which case we may not be able to fully fund the AMT-130 program.

If  AMT-130  fails  in  development  as  a  result  of  any  underlying  problem  with  our  technology,  then  we  may  be
required to discontinue development of other product candidates that are based on the same novel therapeutic approach. We
cannot be certain that AMT-130, or any of our product candidates, will be successful in clinical trials or receive regulatory
approval.  If  we  were  required  to,  or  if  we  chose  to,  discontinue  development  of  AMT-130  or  any  other  future  product
candidates, or if any of them were to fail to receive regulatory approval or achieve sufficient market acceptance, we could
be prevented from or significantly delayed in achieving profitability and our business would be adversely affected.

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We have encountered and may encounter future delays in and impediments to the progress of our clinical trials

or fail to demonstrate the safety and efficacy of our product candidates.

Drug development is expensive, time-consuming, and uncertain as to the outcome. Our product candidates are in
different  stages  of  clinical  or  preclinical  development,  and  there  is  a  significant  risk  of  failure  or  delay  in  each  of  these
programs. We are currently conducting Phase I/II clinical trials in the U.S. and Europe for AMT-130, our investigational
gene therapy for the treatment of Huntington’s disease. We are also advancing three other product candidates into clinical
development  –  AMT-260  for  the  treatment  of  refractory  mesial  temporal  lobe  epilepsy,  AMT-162  for  the  treatment  of
SOD1-ALS and AMT-191 for the treatment of Fabry disease.

We  have  experienced  clinical  setbacks  in  the  past  and  may  experience  setbacks  in  the  future.  For  example,  we
experienced an immaterial but unexpected delay when our clinical trials of HEMGENIX® were placed on clinical hold by
the FDA from December 2020 to April 2021 following a preliminary diagnosis of hepatocellular carcinoma in one patient.
Similarly,  we  experienced  an  unexpected  delay  in  the  enrollment  of  our  Phase  Ib/II  clinical  trial  of  AMT-130  for  the
treatment of Huntington’s disease between July and October 2022 due to our voluntary postponement and comprehensive
safety investigation into suspected unexpected serious adverse reactions in three patients.

A failure of one or more clinical trials can occur at any stage and for a variety of reasons that we cannot predict
with  accuracy  and  that  are  out  of  our  control.  Events  that  may  prevent  successful  or  timely  completion  of  clinical
development, as well as product candidate approval, include, but are not limited to:

● occurrence of serious adverse events associated with a product candidate that are viewed to outweigh its potential

benefits;

● insufficient number of patients treated with the product candidate or study period for assessing the effectiveness

of the product candidate insufficient in length to assess potential clinical development;

● failures or delays in reaching agreement with regulatory agencies on study design, particularly with respect to our

novel gene therapies for which regulatory pathways remain untested;

● failures or delays in hiring sufficient personnel with the requisite expertise to execute multiple clinical programs

simultaneously;

● failures or delays in reaching agreement on acceptable terms with clinical research organizations (“CROs”) and

clinical trial sites;

● failures or delays in patient recruiting into clinical trials or in the addition of new investigators;
● delays in receiving regulatory authorization to conduct our clinical trials or a regulatory authority decision that

the clinical trial should not proceed;

● failures or delays in obtaining or failure to obtain required IRB and IBC approval at each clinical trial site;
● requirements  of  regulatory  authorities,  IRBs,  or  IBCs  to  modify  a  study  in  such  a  way  that  it  makes  the  study

impracticable to conduct;

● regulatory authority requirements to perform additional or unanticipated clinical trials or testing;
● changes in standards of care which may necessitate the modification of our clinical trials or the conduct of new

trials;

● regulatory authority refusal to accept data from foreign clinical study sites;
● disagreements with regulatory authorities regarding our study design, including endpoints, our chosen indication,
our chosen bases for comparison as it relates to clinical efficacy, our interpretation of data from preclinical studies
and clinical trials or a finding that a product candidate’s benefits do not outweigh its safety risks;

● recommendations from DSMBs to discontinue, pause, or modify the trial;
● imposition of a clinical hold by regulatory agencies after an inspection of our clinical trial operations or trial sites;
● suspension  or  termination  of  clinical  research  for  various  reasons,  including  noncompliance  with  regulatory
requirements  or  a  finding  that  the  participants  are  being  exposed  to  unacceptable  health  risks,  undesirable  side
effects,  or  other  unexpected  characteristics  (alone  or  in  combination  with  other  products)  of  the  product
candidate, or due to findings of undesirable effects caused by a chemically or mechanistically similar therapeutic
or therapeutic candidate;

● failure by CROs, other third parties or us to adhere to clinical trial requirements or otherwise properly manage the
clinical  trial  process,  including  meeting  applicable  timelines,  properly  documenting  case  files,  including  the
retention of proper case files, and properly monitoring and auditing clinical sites;

● failure  of  sites  or  clinical  investigators  to  perform  in  accordance  with  Good  Clinical  Practice  or  applicable

regulatory guidelines in other countries;

● failure of patients to abide by clinical trial requirements;

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● delays  or  deviations  in  the  testing,  validation,  manufacturing,  and  delivery  of  our  product  candidates  to  the

clinical sites;

● delays in having patients complete participation in a study or return for post-treatment follow-up;
● clinical trial sites or patients dropping out of a study;
● the number of patients required for clinical trials of our product candidates being larger than we anticipate;
● clinical  trials  producing  negative  or  inconclusive  results,  or  our  studies  failing  to  reach  the  necessary  level  of
statistical  significance,  requiring  that  we  conduct  additional  clinical  trials  or  abandon  product  development
programs;

● interruptions  in  manufacturing  clinical  supply  of  our  product  candidates  or  issues  with  manufacturing  product

candidates that meet the necessary quality requirements;

● unanticipated clinical trial costs or insufficient funding, including paying substantial application user fees;
● emergence of new information about or impacting our product candidates or the field of gene therapy;
● with respect to the product candidates for which we manufacture drug product in-house, determinations that there

are issues with our manufacturing facility or process; or

● changes  in  regulatory  requirements  and  guidance,  as  well  as  new,  revised,  postponed,  or  frozen  regulatory
requirements  (such  as  the  EU  Clinical  Trials  Regulation),  that  require  amending  or  submitting  new  clinical
protocols, undertaking additional new tests or analyses, or submitting new types or amounts of clinical data.

Before obtaining marketing approval from regulatory authorities for the sale of our product candidates, we must
conduct extensive clinical trials to demonstrate the safety and efficacy of the product candidates in humans. Such trials and
regulatory  review  and  approval  take  many  years.  It  is  impossible  to  predict  when  or  if  any  of  our  clinical  trials  will
demonstrate that product candidates are effective or safe in humans.

If the results of our clinical trials are inconclusive, or fail to meet the level of statistical significance required for
regulatory  approval  or  if  there  are  safety  concerns,  concerns  around  durability  of  response  or  other  adverse  events
associated with our product candidates, we may:

● be delayed in or altogether prevented from obtaining marketing approval for our product candidates;
● obtain approval for indications or patient populations that are not as broad as intended or desired;
● obtain  approval  with  labeling  that  includes  significant  use  or  distribution  restrictions,  safety  warnings,  labeling

statements or contraindications;

● be subject to changes in the way our products are administered;
● be  required  to  perform  additional  clinical  trials  to  support  approval  or  be  subject  to  additional  post-marketing

testing requirements;

● have regulatory authorities withdraw their approval of the product or impose restrictions on its distribution in the

form of a modified risk evaluation and mitigation strategy;

● be subject to legal action or other challenges; or
● experience damage to our reputation.

Because of the nature of the gene therapies we are developing, regulators may also require us to demonstrate long-

term gene expression, clinical efficacy, and safety, which may require additional or longer clinical trials for which we may
not be able to meet the regulatory authorities’ standards.

Our ability to recruit patients for our clinical trials is heavily reliant on third parties, such as clinical trial sites.
Clinical trial sites may not have the adequate infrastructure established to handle the administration of our gene therapy
products,  related  surgeries  or  other  means  of  product  administration,  or  may  have  difficulty  finding  eligible  patients  to
enroll into a clinical trial, which may delay or impede our planned trials.  In addition, we or any of our collaborators may
not be able to locate and enroll enough eligible patients to participate in these trials as required by the FDA, the EMA or
similar regulatory authorities outside the U.S. and the European Union. This may result in our failure to initiate or continue
clinical  trials  for  our  product  candidates  or  may  cause  us  to  abandon  one  or  more  clinical  trials  altogether.  Because  our
programs are focused on the treatment of patients with rare or orphan or ultra-orphan diseases, our ability to enroll eligible
patients in these trials may be limited or slower than we anticipate considering the small patient populations involved and
the  specific  age  range  required  for  treatment  eligibility  in  some  indications.  In  addition,  our  potential  competitors,
including  major  pharmaceutical,  specialty  pharmaceutical  and  biotechnology  companies,  academic  institutions  and
governmental agencies and public and private research institutions, may seek to develop competing therapies, which would
further limit the small patient pool available for our studies. Also, patients may be reluctant to enroll in gene therapy trials

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where there are other therapeutic alternatives available or that may become available for various reasons, including, but not
limited to, uncertainty about the safety or effectiveness of a new therapeutic such as a gene therapy and the possibility that
treatment with a gene therapy therapeutic could preclude future gene therapy treatments due to the formation of antibodies
following and in response to the treatment.

Any inability to successfully initiate or complete preclinical and clinical development could result in additional
costs to us or impair our ability to receive marketing approval, to generate revenues from product sales or obtain regulatory
and  commercialization  milestones  and  royalties.  In  addition,  if  we  make  manufacturing  or  formulation  changes  to  our
product  candidates,  including  changes  in  the  vector  or  manufacturing  process  used,  we  may  need  to  conduct  additional
studies  to  bridge  our  modified  product  candidates  to  earlier  versions.  It  is  also  possible  that  any  such  manufacturing  or
formulation changes may have an adverse impact on the performance of the product candidate. Clinical trial delays could
also shorten any periods during which we may have the exclusive right to commercialize our product candidates or allow
our competitors to bring products to market before we do, which could impair our ability to successfully commercialize our
product candidates and may materially harm our business, financial condition, and results of operations.

Our  progress  in  early-stage  clinical  trials  may  not  be  predictive  of  long-term  efficacy  in  late-stage  clinical
trials, and our progress in trials for one product candidate may not be predictive of progress in trials for other product
candidates.

Our  product  candidates  may  fail  to  show  the  required  level  of  safety  and  efficacy  in  later  stages  of  clinical
development  despite  having  successfully  advanced  through  initial  clinical  studies.  For  example,  the  results  from  early
clinical trials of AMT-130, our product candidate targeting Huntington’s disease, may not be predictive of the results of
later-stage  trials.  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  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. Moreover, should there be an issue with the design of any of our
clinical trials, our results may be impacted. We may not discover such a flaw until the clinical trial is at an advanced stage.
Changes  to  product  candidates,  whether  as  a  result  of  regulatory  feedback  or  changes  in  clinical  trial  procedures  and
protocols, may also impact their performance in subsequent studies.

A number of companies in the pharmaceutical and biotechnology industries have suffered significant setbacks in
later-stage  clinical  trials  even  after  achieving  promising  results  in  early-stage  clinical  trials.  If  a  larger  population  of
patients does not experience positive results during our clinical trials, if the results are not reproducible or if our products
show diminishing activity over time, our product candidates may not receive approval from the FDA, EMA or comparable
regulatory  authorities.  Data  obtained  from  preclinical  and  clinical  activities  are  subject  to  varying  interpretations,  which
may delay, limit, or prevent regulatory approval. In addition, we may encounter regulatory delays or rejections because of
many  factors,  including  changes  in  regulatory  policy  during  the  period  of  product  development.  Failure  to  confirm
favorable  results  from  earlier  trials  by  demonstrating  the  safety  and  effectiveness  of  our  products  in  later-stage  clinical
trials with larger patient populations could have a material adverse effect on our business, financial condition, and results of
operations.

Interim  or  preliminary  data  from  studies  or  trials  announced  or  published  from  time  to  time  may  change  as
more data become available and are subject to audit and verification procedures that could result in material changes in
the final data. 

From  time  to  time,  we  publicly  disclose  interim  or  preliminary  data  from  preclinical  studies  and  clinical  trials,
which are based on a preliminary analysis of then-available data, and the results and related findings and conclusions are
subject  to  change  following  a  more  comprehensive  review  of  the  data,  the  particular  study,  or  trial.  We  also  make
assumptions, estimations, calculations, and conclusions as part of our preliminary or interim analyses of data, and we may
not have received or had the opportunity to evaluate all data at that time. As a result, the interim or preliminary data that we
report may differ from future results of the same studies, or different conclusions or considerations may qualify such results
once additional data have been received and fully evaluated. Interim or preliminary data also remain subject to audit and
verification procedures that may result in the final data being materially different from the preliminary data we previously
published. As a result, preliminary or interim data should be viewed with caution until the final data are available. 

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From time to time, we also disclose interim data from our preclinical studies and clinical trials. For example, in
December 2023, we announced updated interim data from our ongoing Phase I/II clinical trial of AMT-130, along with our
expectation  that  we  will  present  additional  clinical  updates  with  respect  to  AMT-130  in  the  future.  Interim  data  from
clinical trials that we may complete are subject to the risk that one or more of the clinical outcomes may materially change
as patient enrollment continues and more patient data become available. Significant differences between interim data and
final data could seriously harm our business. 

Third  parties,  including  regulatory  agencies,  may  not  accept  or  agree  with  our  assumptions,  estimates,
calculations, conclusions, or analyses or may interpret or weigh the importance of data differently, which could impact the
value of the particular program, the approvability or commercialization of the particular product candidate or product and
our company in general. For example, we plan to initiate regulatory interactions in the first half of 2024 to discuss the U.S.
and European data from our ongoing Phase I/II clinical trial of AMT-130 and potential strategies for ongoing development
of  AMT-130.  These  regulatory  authorities  may  not  agree  with  the  assumptions,  estimates,  calculations,  conclusions  or
analyses underlying the interim data from our ongoing clinical trial of AMT-130 or any of our future proposals regarding
the ongoing development of AMT-130. Even if the data supporting such regulatory interactions are suggestive of clinical
responses,  the  durability  of  response  may  not  be  sustained  over  time  or  may  not  be  sufficient  to  support  regulatory
approval.

In addition, the information we choose to publicly disclose regarding a particular study or clinical trial is based on
what  is  typically  extensive  information,  and  you  or  others  may  not  agree  with  what  we  determine  is  the  material  or
otherwise  appropriate  information  to  include  in  our  disclosure.  Any  information  we  determine  not  to  disclose  may
ultimately  be  deemed  significant  by  you  or  others  with  respect  to  future  decisions,  conclusions,  views,  activities  or
otherwise regarding a particular product candidate or our business. If the preliminary or interim data that we report differ
from final results, or if others, including regulatory authorities, disagree with the conclusions reached, our ability to obtain
approval for, and commercialize, product candidates may be harmed, which could seriously harm our business. 

We  are  making  use  of  exploratory  biomarkers  and  other  data  that  are  not  scientifically  validated,  and  our

reliance on these data may lead us to direct our resources inefficiently.

We  are  making  use  of  experimental  biological  markers,  or  biomarkers,  in  an  effort  to  facilitate  our  drug
development and to optimize our clinical trials. Biomarkers are proteins or other substances which can serve as an indicator
of  specific  cell  processes  or  as  evidence  of  a  patient’s  biological  response  to  drug  product  administration.  For  example,
with respect to our ongoing clinical trials of AMT-130, we are measuring NfL in cerebrospinal fluid (“CSF”) as a potential
indicator of neurodegeneration, as well as the pharmacodynamics of mHTT in CSF and changes in total brain volume of
patients treated with AMT-130.

While we believe that these biomarkers and data may serve useful purposes for us, including in the evaluation of
whether our product candidates are having their intended effects through their assumed mechanisms of action, improving
patient  selection  and  monitoring  patient  compliance  with  trial  protocols,  these  biomarkers  and  data  have  not  been
scientifically validated and are considered experimental as used in our trials. If our understanding and use of biomarkers is
inaccurate or flawed, or if our reliance on specific biomarkers such as NfL and mHTT is otherwise misplaced, then we may
fail to realize any benefits from using these data and may also be led to invest time and financial resources inefficiently in
attempting to develop inappropriate drug candidates.

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We  may  not  be  successful  in  our  efforts  to  use  our  gene  therapy  technology  platform  to  build  a  pipeline  of

additional product candidates or otherwise leverage our research and technology to remain competitive.

An element of our strategy is to use our gene therapy technology platform to expand our product pipeline and to
progress our product candidates through preclinical and clinical development ourselves or together with collaborators. To
date, we have only been successful in obtaining regulatory approval for one product, HEMGENIX®, our gene therapy for
the treatment of hemophilia B, which was approved for commercialization by the FDA and the EMA in November 2022
and February 2023, respectively. AMT-130 is our investigational gene therapy candidate for the treatment of Huntington’s
disease that utilizes our proprietary, gene-silencing miQURE platform and incorporates an AAV vector carrying a miRNA
specifically  designed  to  silence  the  huntingtin  gene  and  the  potentially  highly  toxic  exon  1  protein  fragment,  which  is
currently  in  ongoing  Phase  I/II  studies  in  the  U.S.  and  Europe.  In  addition  to  AMT-130,  we  are  also  developing  other
investigational gene therapies, including AMT-260 for the treatment of MTLE, AMT-162 for the treatment of SOD1 ALS
and AMT-191 for the treatment of Fabry’s disease. Although we currently have a pipeline of programs at various stages of
development, including an approved product, we may not be able to identify or develop product candidates that are safe
and  effective.  Even  if  we  are  successful  in  continuing  to  build  our  pipeline,  the  potential  product  candidates  that  we
identify may not be suitable for clinical development.

Research  programs  to  identify  new  product  candidates  require  substantial  technical,  financial,  and  human
resources. Due to the significant resources required for the development of our product candidates, we must decide which
product  candidates  to  pursue  and  advance  and  the  resources  to  allocate  to  each.  For  example,  as  a  result  of  the
Reorganization, we discontinued investments in certain of our prior research and development programs, including AMT-
210 for the treatment of Parkinson’s disease, and certain other technology projects, prioritizing instead our early clinical-
stage programs, including AMT-130, AMT-260, AMT-162 and AMT-191.

Our  decisions  concerning  the  allocation  of  research,  development,  collaboration,  management,  and  financial
resources toward particular product candidates, including the decisions stemming from our Reorganization, may not lead to
the development of any viable commercial product and may divert resources away from better opportunities. We or any
collaborators may focus our efforts and resources on potential programs or product candidates that ultimately prove to be
unsuccessful.  If  we  do  not  continue  to  successfully  develop  and  commercialize  product  candidates  based  upon  our
technology, we may face difficulty in obtaining product revenues in future periods, which could result in significant harm
to our business, results of operations and financial position and materially adversely affect our share price.

Our  business  development  strategy  depends  on  our  ability  to  obtain  rights  to  key  technologies  through  in-
licenses  and  support  the  development  of  our  product  pipeline  through  out-licenses,  and  those  efforts  may  not  be
successful.

We may expand our product pipeline from time to time through strategic transactions that involve in-licensing the
rights to key technologies, including those related to gene delivery, genes, and gene cassettes. For example, in July 2021,
we acquired uniQure France (formerly Corlieve Therapeutics SAS) and its lead program, now known as AMT-260, to treat
refractory  MTLE.  AMT-260  is  being  developed  based  on  exclusive  licenses  to  certain  patents  uniQure  France  obtained
from  two  French  research  institutions  that  continue  to  collaborate  with  us.  uniQure  France  also  obtained  an  exclusive
license from Regenxbio, Inc. to use AAV9 in connection with the delivery of any sequence that affects the expression of
the GRIK2 gene in humans. Notwithstanding efforts to expand our product pipeline, the cost of drug development is high
as is the rate of failure in the drug development process. In order to fund the development of some of our existing product
candidates,  we  may  seek  to  out-license  some  of  our  product  candidates  or  technologies  to  other  pharmaceutical  or
biotechnology companies or other third parties. The aim of such out-licensing would be generate non-dilutive funds in the
form  of  up-front  or  milestone  payments  or  royalties.  Such  decisions  will  be  taken  on  a  case-by-case  basis,  as  the
opportunity arises or is required.

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The future success of our business will depend in significant part on our business development efforts with respect
to existing and future product candidates, including our ability to in-license or otherwise acquire the rights to additional
product  candidates  or  technologies,  particularly  through  our  collaborations  with  academic  research  institutions,  and  our
ability to out-license product candidates and technologies for which collaboration with external parties forms a part of our
business  strategy.  However,  we  may  be  unable  to  in-license  or  acquire  the  rights  to  any  such  product  candidates  or
technologies from third parties on acceptable terms or at all. The in-licensing and acquisition of gene therapy technologies
is  a  competitive  area,  and  many  more  established  companies  are  also  pursuing  strategies  to  license  or  acquire  product
candidates  or  technologies  that  we  may  consider  attractive.  These  established  companies  may  have  a  competitive
advantage over us due to their size, cash resources and greater clinical development and commercialization capabilities. In
addition, companies that perceive us to be competitors may be unwilling to license rights to us. Furthermore, we may be
unable to identify suitable product candidates or technologies within our areas of focus. If we are unable to successfully
obtain rights to suitable product candidates or technologies, our business, financial condition, and prospects could suffer.

Similarly,  there  is  no  guarantee  that  we  will  generate  product  candidates  that  are  suitable  for  out  licensing  or
attractive  to  potential  collaborators,  and  even  if  we  do,  there  is  no  guarantee  that  we  will  be  successful  in  identifying
potential licensees and successfully negotiating such collaborations on agreeable terms if and when required. Any failure
with respect to our business development efforts may materially affect our ability to finance our business and support the
development of our product pipeline.  

Negative public opinion and increased regulatory scrutiny of gene therapy and genetic research may damage
public perception of our product candidates or adversely affect our ability to conduct our business or obtain marketing
approvals for our product candidates.

Gene  therapy  remains  a  novel  technology.  Our  technology  utilizes  vectors  derived  from  viruses,  which  may  be
perceived as unsafe or may result in unforeseen adverse events. Public perception may be influenced by claims that gene
therapies are unsafe, and gene therapies may not ultimately gain the acceptance of the public or the medical community.
The risk of cancer remains a concern for gene therapy, and we cannot guarantee that patients treated in any of our planned
or future clinical studies will not develop cancer as a result of being treated with our product candidates. In addition, there
is  the  potential  risk  of  delayed  adverse  events  following  exposure  to  gene  therapy  products  due  to  persistent  biological
activity of the genetic material or other components of products used to carry the genetic material.

Public and medical community adoption of any of our gene therapies will depend on other factors, including the
ease of administration in comparison to other therapeutics and the extent to which our therapies are successful in slowing
disease progression if not acting as a cure for the disease. For example, the need for lengthy and complex surgeries for the
administration of a product candidate may impact the acceptance of a product. In particular, our success will depend upon
physicians who specialize in the treatment of genetic diseases targeted by our products prescribing treatments that involve
the use of our products in lieu of, or in addition to, existing treatments with which they are familiar and for which greater
clinical data may be available.

More restrictive government regulation of gene therapies or negative public opinion may have an adverse effect
on  our  business,  financial  condition,  results  of  operations  and  prospects  and  may  delay  or  impair  the  development  and
commercialization  of  our  product  candidates  or  demand  for  any  products  we  may  develop.  For  example,  earlier  gene
therapy trials led to several well-publicized adverse events, including cases of leukemia and death seen in other trials using
other vectors.

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Serious  adverse  events  in  our  clinical  trials,  or  other  clinical  trials  involving  gene  therapy  products  or  our
competitors’  products,  even  if  not  ultimately  attributable  to  the  relevant  product  candidates,  and  the  resulting  publicity,
could result in increased government regulation, unfavorable public perception, potential regulatory delays in the testing or
approval  of  our  product  candidates,  stricter  labeling  requirements  for  those  product  candidates  that  are  approved  and  a
decrease  in  demand  for  any  products  for  which  we  obtain  marketing  approval.  A  small  number  of  patients  have
experienced  serious  adverse  events  during  our  clinical  trials  of  AMT-060  (HEMGENIX®),  etranacogene  dezaparvovec
(AMT-061), and AMT-130. However, adverse events in our clinical trials or those conducted by third parties (even if not
ultimately attributable to our product candidates), and the resulting publicity, could result in delay, a hold or termination of
our clinical trials, increased governmental regulation, unfavorable public perception, failure of the medical community to
accept  and  prescribe  gene  therapy  treatments,  potential  regulatory  delays  in  the  testing  or  approval  of  our  product
candidates, stricter labeling requirements for those product candidates that are approved and a decrease in demand for any
such  product  candidates.  If  any  of  these  events  should  occur,  it  may  have  a  material  adverse  effect  on  our  business,
financial condition, and results of operations.

Certain of our product candidates may require medical devices for product administration and/or diagnostics,
resulting in our product candidates being deemed combination products or otherwise being dependent upon additional
regulatory approvals. This may result in the need to comply with additional regulatory requirements. If we are unable to
meet these regulatory requirements, we may be delayed or not be able to obtain product approval.

Certain  of  our  product  candidates  require  medical  devices  for  administration,  such  as  AMT-130  and  AMT-260,
each of which requires a stereotactic, magnetic resonance imaging guided catheter. Other of our product candidates may
also require the use of a companion diagnostic device to confirm the presence of specific genetic or other biomarkers. In
addition, certain of our product candidates, including AMT-130 and AMT-260, may require the use of immunosuppressive
agents to reduce the inflammatory responses associated with administration.

It is possible that our product candidates would be deemed to be combination products, potentially necessitating
compliance with the FDA’s investigational device regulations, separate marketing application submissions for the medical
device component, a demonstration that our product candidates are safe and effective when used in combination with the
medical devices, cross-labeling with the medical device, and compliance with certain of the FDA’s device regulations. If
we are not able to comply with the FDA’s device regulations, if we are not able to effectively partner with the applicable
medical device manufacturers, if we or any partners are not able to obtain any required FDA clearances or approvals of the
applicable medical devices, or if we are not able to demonstrate that our product candidates are safe and efficacious when
used  with  the  applicable  medical  devices,  we  may  be  delayed  in  or  may  never  obtain  FDA  approval  for  our  product
candidates, which would materially harm our business.

Moreover,  certain  of  our  delivery  modalities,  such  as  direct  delivery  of  product  candidates  to  the  brain,  may
require  significant  time  and  physician  ability  and  skill.  If  physicians  are  not  able  to  effectively  deliver  our  product
candidates to the applicable site of action or if delivery modalities are too difficult, or if there is reluctance to administer
immunosuppressive agents that are outside of the standard of care to treat immune responses from the administration of our
therapies, we may never be able to obtain approval for our product candidates, may be delayed in obtaining approval, or,
following approval, physicians may not adopt our product candidates, any of which may materially harm our business.

Risks Related to Our Manufacturing

Our  manufacturing  facilities  are  subject  to  significant  government  regulations  and  approvals.  If  we  fail  to

comply with these regulations or maintain these approvals, our business could be materially harmed.

With the exception of AMT-260 and AMT-162, we produce our gene therapies at our Lexington Facility using a
proprietary  baculovirus  expression  vector  system.  Our  Lexington  Facility,  where  we  manufacture  HEMGENIX®,  is
subject to ongoing regulation and periodic inspection by the FDA, EU member state, and other regulatory bodies to ensure
compliance  with  cGMP  and  other  requirements.  Any  failure  to  follow  and  document  our  adherence  to  such  cGMP
regulations or other regulatory requirements may lead to significant delays in the availability of products for commercial
sale  or  clinical  study,  may  result  in  the  termination  of  or  a  hold  on  a  clinical  study,  or  may  delay  or  prevent  filing  or
approval of marketing applications for our products.

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Failure to comply with applicable regulations could also result in the FDA, EU member state, or other applicable

authorities taking various actions, including:

● levying fines and other civil penalties;
● imposing consent decrees or injunctions;
● requiring us to suspend or put on hold one or more of our clinical trials;
● suspending or withdrawing regulatory approvals;
● delaying or refusing to approve pending applications or supplements to approved applications;
● requiring us to suspend manufacturing activities or product sales, imports or exports;
● requiring  us  to  communicate  with  physicians  and  other  customers  about  concerns  related  to  actual  or  potential

safety, efficacy, and other issues involving our products;

● mandating or recommending product recalls or seizing products;
● imposing operating restrictions; or
● seeking criminal prosecutions, among other outcomes.

Poor  control  of  production  processes  can  also  lead  to  the  introduction  of  adventitious  agents  or  other
contaminants, or to inadvertent changes in the properties or stability of a product candidate that may not be detectable in
final product testing and that could have an adverse effect on clinical studies, or patient safety or efficacy. Moreover, if our
manufacturing facility is not able to meet regulatory requirements, we may need to implement costly and time-consuming
remedial actions. Any of the foregoing could materially harm our business, financial condition, and results of operations.

Moreover, if we are not able to manufacture a sufficient amount of our product candidates for clinical studies or
eventual  commercialization,  or  if  we  are  unable  to  manufacture  sufficient  supply  of  HEMGENIX®  consistent  with  our
manufacturing  and  supply  obligations  to  CSL  Behring,  our  development  programs  and  commercial  prospects  will  be
harmed. If we cannot produce an adequate amount of our drug substance and product in compliance with the applicable
regulatory requirements, we may need to contract with a third party to do so, in which case third party manufacturers may
not be available to us on favorable terms or at all. The addition of a new manufacturer may also require FDA, EMA, EU,
and other regulatory authority approvals, which we may not be able to obtain.

Gene therapies are complex, expensive and difficult to manufacture. We could experience capacity, production
or  technology  transfer  challenges  that  could  result  in  delays  in  our  development  or  commercialization  schedules  or
otherwise adversely affect our business.

Our proprietary manufacturing process leveraging insect cells and baculoviruses to produce to AAV-based gene
therapies  is  highly  complex  and  is  regularly  subject  to  variation  or  production  difficulties.  Issues  with  any  of  our
manufacturing  processes,  even  minor  deviations  from  our  standard  processes,  could  result  in  insufficient  yield,  product
deficiencies  or  manufacturing  failures  that  result  in  adverse  patient  reactions,  lot  failures,  insufficient  inventory,  product
recalls and product liability claims. Additionally, we may not be able to scale up some or all our manufacturing processes
as necessary and on our desired timelines to meet the demands of our clinical product pipeline, which may result in delays
in regulatory approvals, inability to produce sufficient amounts of clinical or commercial product, or otherwise adversely
affect our business.

Factors  common  to  the  manufacturing  process  associated  with  most  biologics  and  drugs  could  also  cause
production interruptions for us, including, without limitation, raw materials shortages and other supply chain challenges,
raw material failures, limited control over pricing of raw materials, growth media failures, equipment malfunctions, costs
associated  with  servicing  real  property  lease  and  other  contractual  obligations,  facility  contamination,  labor  problems,
natural disasters, disruption in utility services, public health crises, terrorist activities, war or cases of force majeure and
acts  of  God  that  are  beyond  our  control.  We  also  may  encounter  problems  in  hiring  and  retaining  the  experienced  and
specialized personnel needed to operate our manufacturing facilities, processes and testing, which could result in delays in
our production or difficulties in maintaining compliance with applicable regulatory requirements.

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We  manufacture  HEMGENIX®  at  our  Lexington  Facility  which  is  optimized  to  meet  our  commercial
manufacturing and supply obligations pursuant to the CSL Behring collaboration. This optimization and dedicated capacity
for HEMGENIX® could limit our ability to manufacture other product candidates or components thereof to support our
development programs or those of third parties. The manufacturing of HEMGENIX® pursuant to our obligations under the
CSL Behring Collaboration is expensive and requires the dedication of significant company resources.  In September 2022,
CSL Behring notified us of its intent to transfer manufacturing technology in the coming years related to HEMGENIX® to
a  third-party  contract  manufacturer  to  be  designated  by  CSL  Behring  in  the  future.  Until  CSL  Behring  identifies  and
designates a new manufacturer capable of supporting the commercial requirements of HEMGENIX®, we will continue to
incur  significant  costs  associated  with  our  manufacturing  and  supply  obligations.  Following  such  transfer,  we  may
experience challenges in adapting our Lexington Facility to meet the manufacturing and supply needs for products other
than HEMGENIX® as a result of excess capacity or our ability to adapt to new processes, among other challenges. Any
problems or limitations with respect to our manufacturing processes or facilities, including our existing commercial supply
and  manufacturing  obligations  to  CSL  Behring,  could  make  us  a  less  attractive  collaborator  for  academic  research
institutions  and  other  parties,  which  could  limit  our  access  to  additional  attractive  development  programs  or  sources  of
capital, result in delays in our clinical development or marketing schedules and materially harm our business.

We currently rely and expect to continue to rely on third parties to conduct product manufacturing for certain

of our product candidates, and these third parties may not perform satisfactorily.

We  currently  rely,  and  expect  to  continue  to  rely,  on  third  parties  for  the  production  of  some  of  our  preclinical
study and planned clinical trial materials and, therefore, we can control only certain aspects of their activities. The facilities
used by us and our contract manufacturers to manufacture certain of our product candidates must be reviewed by the FDA
pursuant to inspections that will be conducted after we submit a BLA to the FDA. We do not control the manufacturing
process of, and are completely dependent on, our contract manufacturing partners for compliance with the cGMP for the
manufacture  of  our  products  and  product  candidates  that  are  not  manufactured  in  house.  If  we  or  our  contract
manufacturers  cannot  successfully  manufacture  material  that  conforms  to  our  specifications  and  the  strict  regulatory
requirements of the FDA or other regulatory bodies, we will not be able to obtain and/or maintain regulatory approval for
our products manufactured by third parties. In addition, we have no control over the ability of our contract manufacturers
to  maintain  adequate  quality  control,  quality  assurance  and  qualified  personnel.  If  the  FDA  or  a  comparable  foreign
regulatory authority does not approve these facilities for the manufacture of our product candidates or if it withdraws any
such  approval  in  the  future,  we  may  need  to  find  alternative  third-party  manufacturers,  which  may  not  be  available  and
which would significantly impact our ability to develop, obtain regulatory approval for or market our product candidates, if
approved. 

Our use of viruses, chemicals and other potentially hazardous materials requires us to comply with regulatory

requirements and exposes us to significant potential liabilities.

Our development and manufacturing processes involve the use of viruses, chemicals, other potentially hazardous
materials and produce waste products. Accordingly, we are subject to national, federal, state, and local laws and regulations
in the U.S. and the Netherlands governing the use, manufacture, distribution, storage, handling, treatment, and disposal of
these  materials.  In  addition  to  ensuring  the  safe  handling  of  these  materials,  we  are  subject  to  increased  safeguards  and
security measures for many of these agents, including controlling access and screening of entities and personnel who have
access  to  them,  and  establishing  a  comprehensive  national  database  of  registered  entities.  In  the  event  of  an  accident  or
failure to comply with environmental, occupational health and safety and export control laws and regulations, we could be
held liable for damages that result, and any such liability could exceed our assets and resources, and could result in material
harm to our business, financial condition, and results of operations.

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Our  resources  might  be  adversely  affected  if  we  are  unable  to  validate  our  manufacturing  processes  and

methods or develop new processes and methods to meet our product supply needs and obligations.

The manufacture of our AAV gene therapies is complex and requires significant expertise. Even with the relevant
experience and expertise, manufacturers of gene therapy products often encounter difficulties in production, particularly in
scaling out and validating initial production and ensuring that the product meets required specifications. These problems
include difficulties with production costs and yields, quality control, including stability and potency of the product, quality
assurance  testing,  operator  error,  shortages  of  qualified  personnel,  as  well  as  compliance  with  strictly  enforced  federal,
state,  and  foreign  regulations.  In  the  past,  we  have  manufactured  certain  batches  of  product  candidates  intended  for
nonclinical, clinical and process validation purposes that have not met all our pre-specified quality parameters. To meet our
expected future production needs and our regulatory filing timelines for gene therapy product candidates, we will need to
complete the validation of our manufacturing processes and methods for each program, and we may need to develop and
validate new or larger scale manufacturing processes and methods. If we are unable to consistently manufacture our gene
therapy  product  candidates  or  any  approved  products  in  accordance  with  our  pre-specified  quality  parameters  and
applicable regulatory standards, it could adversely impact our ability to validate our manufacturing processes and methods,
to meet our production needs, to file a BLA or other regulatory submissions, to develop our other proprietary programs, to
conserve our cash, or to receive financial payments pursuant to our agreements with third parties.

Risks Related to Regulatory Approval of Our Products

We cannot predict when or if we will obtain marketing approval to commercialize our product candidates.

The development and commercialization of our product candidates, including their design, testing, manufacture,
safety, efficacy, purity, recordkeeping, labeling, storage, approval, advertising, promotion, sale, and distribution, are subject
to comprehensive regulation by the FDA and other regulatory agencies in the U.S., the EMA, and other regulatory agencies
of  the  member  states  of  the  European  Union,  and  similar  regulatory  authorities  in  other  jurisdictions.  Failure  to  obtain
marketing  approval  for  a  product  candidate  in  a  specific  jurisdiction  will  prevent  us  from  commercializing  the  product
candidate in that jurisdiction and our ability to generate revenue will be materially impaired.

The  process  of  obtaining  marketing  approval  for  our  product  candidates  in  the  U.S.,  the  European  Union,  and
other  countries  is  expensive  and  may  take  many  years,  if  approval  is  obtained  at  all.  Changes  in  marketing  approval
policies  during  the  development  period,  changes  in  or  the  enactment  of  additional  statutes  or  regulations,  or  changes  in
regulatory review for each submitted product application, may cause delays in the approval or rejection of an application.
Regulatory authorities may also be delayed in completing their review of any marketing applications submitted by us or
our  partners.  Regulatory  authorities  have  substantial  discretion  in  the  approval  process  and  may  refuse  to  accept  any
application,  may  decide  that  our  data  are  insufficient  for  approval,  may  require  additional  preclinical,  clinical,  or  other
studies and may not complete their review in a timely manner. Further, any marketing approval we ultimately obtain may
be for only limited indications or be subject to stringent labeling or other restrictions or post-approval commitments that
render the approved product not commercially viable.

The risks associated with the marketing approval process are heightened by the status of our products as gene

therapies.

We  believe  that  all  our  current  product  candidates  will  be  viewed  as  gene  therapy  products  by  the  applicable
regulatory authorities. While there are several gene therapy product candidates under development in the U.S., the FDA
has  only  approved  a  limited  number  of  gene  therapy  products,  to  date.  Accordingly,  regulators  like  the  FDA  may  have
limited experience with the review and approval of marketing applications for gene therapy products, which may adversely
affect the approval prospects for our product candidates.

Both the FDA and the EMA have demonstrated caution in their regulation of gene therapy treatments, and ethical
and  legal  concerns  about  gene  therapy  and  genetic  testing  may  result  in  additional  regulations  or  restrictions  on  the
development and commercialization of our product candidates that are difficult to predict. The FDA and the EMA have
issued  various  guidance  documents  pertaining  to  gene  therapy  products,  which  will  likely  be  applicable  to  our  product
candidates prior to our obtaining regulatory approval in the U.S. or the EU. The close regulatory scrutiny of gene therapy
products may result in delays and increased costs and may ultimately lead to the failure to obtain approval for any gene
therapy product. Experiences with existing gene therapies, including any emergent adverse effects, could also impact how
the  FDA  and  the  EMA  view  our  products  and  product  candidates,  making  it  harder  to  obtain  or  maintain  regulatory
approvals.

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Regulatory requirements affecting gene therapy have changed frequently and continue to evolve, and agencies at
both  the  U.S.  federal  and  state  level,  as  well  as  congressional  committees  and  foreign  governments,  have  sometimes
expressed interest in further regulating biotechnology. In the U.S., there have been a number of changes relating to gene
therapy  development.  By  example,  FDA  issued  a  number  of  guidance  documents,  and  continues  to  issue  guidance
documents, on human gene therapy development, one of which was specific to human gene therapy for hemophilia, one
that  was  specific  to  neurodegenerative  diseases,  and  another  of  which  was  specific  to  rare  diseases.  Moreover,  the
European  Commission  conducted  a  public  consultation  in  early  2013  on  the  application  of  EU  legislation  that  governs
advanced therapy medicinal products, including gene therapy products, which could result in changes in the data we need
to  submit  to  the  EMA  for  our  product  candidates  to  gain  regulatory  approval  or  change  the  requirements  for  tracking,
handling and distribution of the products which may be associated with increased costs. In addition, divergent scientific
opinions among the various bodies involved in the review process may result in delays, require additional resources, and
ultimately result in rejection.

The FDA, EMA, and other regulatory authorities will likely continue to revise and further update their approaches
to gene therapies in the coming years. These regulatory agencies, committees and advisory groups and the new regulations
and  guidelines  they  promulgate  may  lengthen  the  regulatory  review  process,  require  us  to  perform  additional  studies,
increase our development costs, lead to changes in regulatory positions and interpretations, delay or prevent approval and
commercialization of our product candidates or lead to significant post-approval limitations or restrictions. Delay or failure
to obtain, or unexpected costs in obtaining, the regulatory approval necessary to bring a potential product to market could
decrease our ability to generate sufficient product revenues to maintain our business.

We may use certain specialized pathways to develop our product candidates or to seek regulatory approval. We
may not qualify for these pathways, or such pathways may not ultimately speed the time to approval or result in product
candidate approval.

We  have  obtained  and  may  in  the  future  seek  one  or  more  fast-track  designations,  breakthrough  therapy
designation, RMAT designation, PRIME scheme access or priority review designation for our product candidates. A fast-
track product designation is designed to facilitate the clinical development and expedite the review of drugs intended to
treat  a  serious  or  life-threatening  condition  and  which  demonstrate  the  potential  to  address  an  unmet  medical  need.  A
breakthrough therapy is defined as a drug that is intended, alone or in combination with one or more other drugs, to treat a
serious  or  life-threatening  disease  or  condition,  where  preliminary  clinical  evidence  indicates  that  the  drug  may
demonstrate  substantial  improvement  over  existing  therapies  on  one  or  more  clinically  significant  endpoints,  such  as
substantial  treatment  effects  observed  early  in  clinical  development.  An  RMAT  designation  is  designed  to  accelerate
approval  for  regenerative  advanced  therapies.  Priority  review  designation  is  intended  to  accelerate  the  FDA  marketing
application  review  timeframe  for  drug  products  that  treat  a  serious  condition  and  that,  if  approved,  would  provide  a
significant  improvement  in  safety  or  effectiveness.  PRIME  is  a  scheme  provided  by  the  EMA,  similar  to  the  FDA’s
breakthrough therapy designation, to enhance support for the development of medicines that target an unmet medical need.

For  drugs  and  biologics  that  have  been  designated  as  fast  track  products,  RMAT,  or  breakthrough  therapies,  or
granted access to the PRIME scheme, interaction and communication between the regulatory agency and the sponsor of the
trial can help to identify the most efficient path for clinical development. Sponsors of fast-track products, RMAT products,
or breakthrough therapies may also be able to submit marketing applications on a rolling basis, meaning that the FDA may
review portions of a marketing application before the sponsor submits the complete application to the FDA, if the sponsor
pays the user fee upon submission of the first portion of the marketing application and the FDA approves a schedule for the
submission  of  the  remaining  sections.  For  products  that  receive  a  priority  review  designation,  the  FDA’s  marketing
application review goal is shortened to six months, as opposed to ten months under standard review.

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Designation as a fast-track product, breakthrough therapy, RMAT, PRIME, or priority review product is within the
discretion  of  the  regulatory  agency.  Accordingly,  even  if  we  believe  one  of  our  product  candidates  meets  the  relevant
criteria, the agency may disagree and instead determine not to make such a designation. 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 drugs
considered for approval under conventional regulatory procedures and does not assure ultimate marketing approval by the
agency. In addition, the FDA may later decide that the products no longer meet the applicable conditions for qualification
as either a fast-track product, RMAT, or a breakthrough therapy or, for priority review products, decide that the period for
FDA review or approval will not be shortened. Moreover, in the U.S., the FDA expects that sponsors with products under
these  programs  will  be  prepared  for  a  more  rapid  pace  of  development,  including  with  respect  to  manufacturing  or  any
combination medical devices, such as companion diagnostics.  If we are unable to meet these expectations, we may not be
able to fully avail ourselves of certain advantages of these programs.

Biologics studied for their safety and effectiveness in treating serious or life-threatening illnesses and that provide
meaningful therapeutic benefit over existing treatments may receive accelerated approval by the FDA, meaning the agency
may approve the product candidate based upon a surrogate endpoint that is reasonably likely to predict clinical benefit, or
on a clinical endpoint that is reasonably likely to predict an effect on irreversible morbidity or mortality or other clinical
benefit.  Even  if  we  do  qualify  for  accelerated  approval,  we  may  be  unsuccessful  in  meeting  post-marketing  compliance
requirements,  or  fail  to  conduct  required  post-approval  studies,  or  to  confirm  a  clinical  benefit  during  post-marketing
studies, which could result in the FDA withdrawing our product from the market. In recent years, the accelerated approval
pathway has come under significant FDA and public scrutiny. Accordingly, it is uncertain whether the FDA may be more
conservative  in  granting  accelerated  approval  or,  if  granted,  more  apt  to  withdraw  approval  if  clinical  benefit  is  not
confirmed. There is no guarantee that regulatory interactions with FDA or comparable foreign authorities will result in our
ability to avail ourselves of any specialized approval pathways for our product candidates.

Our failure to obtain or maintain orphan product exclusivity for any of our product candidates for which we
seek  this  status  could  limit  our  commercial  opportunity,  and  if  our  competitors  are  able  to  obtain  orphan  product
exclusivity before we do, we may not be able to obtain approval for our competing products for a significant period.

Regulatory authorities in some jurisdictions, including the U.S. and the European Union, may designate drugs for
relatively  small  patient  populations  as  orphan  drugs.  While  certain  of  our  product  candidates,  including  AMT-130  have
received orphan drug designation, there is no guarantee that we will be able to receive such designations in the future. The
FDA  may  grant  orphan  designation  to  multiple  sponsors  for  the  same  compound  or  active  molecule  and  for  the  same
indication.  If  another  sponsor  receives  FDA  approval  for  such  product  before  we  do,  we  would  be  prevented  from
launching our product in the U.S. for the orphan indication for a period of at least seven years unless we can demonstrate
clinical superiority.

Moreover, while orphan drug designation neither shortens the development or regulatory review time, nor gives
the product candidate advantages in the regulatory review or approval process, generally, if a product with an orphan drug
designation subsequently receives the first marketing approval for the relevant indication, the product is entitled to a period
of market exclusivity, which precludes the FDA or the EMA from approving another marketing application for the same
drug for the same indication for that period. The FDA and the EMA, however, may subsequently approve a similar drug or
same drug, in the case of the U.S., for the same indication during the first product’s market exclusivity period if the FDA or
the  EMA  concludes  that  the  later  drug  is  clinically  superior  in  that  it  is  shown  to  be  safer  or  more  effective  or  makes  a
major contribution to patient care. Orphan exclusivity in the U.S. also does not prevent the FDA from approving another
product that is considered to be the same as our product candidates for a different indication or a different product for the
same orphan indication. If another product that is the same as ours is approved for a different indication, it is possible that
third-party  payors  will  reimburse  for  products  off-label  even  if  not  indicated  for  the  orphan  condition.  Moreover,  in  the
U.S. the exact scope of orphan drug exclusivity is currently uncertain and evolving due to a recent court decision.

Orphan  drug  exclusivity  may  be  lost  if  the  FDA  or  the  EMA  determines  that  the  request  for  designation  was
materially defective, or if the manufacturer is unable to assure sufficient quantity of the drug to meet the needs of patients
with the rare disease or condition or if the incidence and prevalence of patients who are eligible to receive the drug in these
markets  materially  increase.  The  inability  to  obtain  or  failure  to  maintain  adequate  product  exclusivity  for  our  product
candidates could have a material adverse effect on our business prospects, results of operations and financial condition.

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Our focus on developing gene therapies makes it difficult to determine the availability and utility of the orphan
drug regime to our product candidates. Regulatory criteria with respect to orphan products are evolving, especially in gene
therapy. By example, in the U.S., whether two gene therapies are considered to be the same for the purpose of determining
clinical  superiority  was  updated  via  a  final  guidance  document  specific  to  gene  therapies,  and  depends  on  a  number  of
factors, including the expressed transgene, the vector, and other product or product candidate features. Depending on the
products, whether two products are ultimately considered to be the same may be determined by FDA on a case-by-case
basis,  making  it  difficult  to  make  predictions  regarding  when  the  FDA  might  be  able  to  make  an  approval  of  a  product
effective and whether periods of exclusivity will effectively block competitors seeking to market products that are the same
or similar to ours for the same intended use. Accordingly, whether any of our gene therapies will be deemed to be the same
as another product or product candidate is uncertain.

As  appropriate,  we  intend  to  seek  available  periods  of  regulatory  exclusivity  for  our  product  candidates.
However, there is no guarantee that we will be granted these periods of regulatory exclusivity or that we will be able to
maintain these periods of exclusivity.

The  FDA  grants  product  sponsors  certain  periods  of  regulatory  exclusivity,  during  which  the  agency  may  not
approve,  and  in  certain  instances,  may  not  accept,  certain  marketing  applications  for  competing  drugs.  For  example,
biologic  product  sponsors  may  be  eligible  for  twelve  years  of  exclusivity  from  the  date  of  approval,  seven  years  of
exclusivity for drugs that are designated to be orphan drugs, and/or a six-month period of exclusivity added to any existing
exclusivity period for the submission of FDA requested pediatric data. While we intend to apply for all periods of market
exclusivity that we may be eligible for, there is no guarantee that we will be granted any such periods of market exclusivity.
By  example,  regulatory  authorities  may  determine  that  our  product  candidates  are  not  eligible  for  periods  of  regulatory
exclusivity  for  various  reasons,  including  a  determination  by  the  FDA  that  a  BLA  approval  does  not  constitute  a  first
licensure of the product. Additionally, under certain circumstances, the FDA may revoke the period of market exclusivity.
Thus, there is no guarantee that we will be able to maintain a period of market exclusivity, even if granted. In the case of
orphan designation, other benefits, such as tax credits and exemption from user fees may be available. If we are not able to
obtain or maintain orphan drug designation or any period of market exclusivity to which we may be entitled, we could be
materially  harmed,  as  we  will  potentially  be  subject  to  greater  market  competition  and  may  lose  the  benefits  associated
with  programs.  It  is  also  possible  that  periods  of  exclusivity  will  not  adequately  protect  our  product  candidates  from
competition. For instance, even if we receive twelve years of exclusivity from the FDA, other applicants will still be able to
submit and receive approvals for versions of our product candidates through a full BLA.

If  we  do  not  obtain  or  maintain  periods  of  market  exclusivity,  we  may  face  competition  sooner  than  otherwise
anticipated. For instance, in the U.S., this could mean that a competing biosimilar product may be able to apply to the FDA
and obtain approval either as a biosimilar to one of our products or even as an interchangeable product. This may require
that  we  undertake  costly  and  time-consuming  patent  litigation,  to  the  extent  available,  or  defend  actions  brought  by  the
biosimilar applicant for declaratory judgment. If a biosimilar product does enter the market, it is possible that it could be
substituted for one of our product candidates, especially if it is available at a lower price.

It  is  also  possible  that,  at  the  time  we  obtain  approval  of  our  product  candidates,  regulatory  laws  and  policies
around exclusivities may have changed. For instance, there have been efforts to decrease the U.S. period of exclusivity to a
shorter timeframe. Future proposed budgets, international trade agreements and other arrangements or proposals may affect
periods of exclusivity.

If  any  of  our  product  candidates  receive  regulatory  approval,  we  and/or  our  partners  will  be  subject  to
extensive  regulatory  requirements.  Failure  to  fulfill  and  comply  with  the  applicable  regulatory  requirements  could
result in regulatory enforcement actions that would be detrimental to our business.

Following any regulatory approval, the FDA and the EMA may impose certain post-approval requirements related
to a product. Specifically, any approved products will be subject to continuing and comprehensive regulation concerning
the  product’s  design,  testing,  manufacture,  safety,  efficacy,  recordkeeping,  labeling,  storage,  approval,  advertising,
promotion, sale, and distribution. Regulatory authorities may also require post-marketing testing, known as Phase 4 testing,
a risk evaluation and mitigation strategy, and surveillance to monitor the effects of an approved product or place conditions
on an approval that could restrict the distribution or use of the product. Failure to comply with any of these requirements
could result in regulatory, administrative, or other enforcement action, which would be detrimental to our business.

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For instance, the FDA and other government agencies closely regulate the post-approval marketing and promotion
of  approved  products,  including  off-label  promotion,  industry-sponsored  scientific  and  educational  activities,  and  on  the
Internet and social media. Approved products may be marketed only for the approved indications and in accordance with
the  provisions  of  the  approved  labeling.  Failure  to  comply  with  regulatory  promotional  standards  could  result  in  actions
being brought against us by these agencies.

Moreover, if a company obtains FDA approval for a product via the accelerated approval pathway, the company
would be required to conduct a post-marketing confirmatory trial to verify and describe the clinical benefit in support of
full  approval.  FDA  can  require  that  this  confirmatory  trial  be  commenced  prior  to  FDA  granting  a  product  accelerated
approval.  An  unsuccessful  post-marketing  study  or  failure  to  complete  such  a  study  could  result  in  the  expedited
withdrawal of the FDA’s marketing approval for a product using a statutorily defined streamlined process.

Changes  to  some  of  the  conditions  established  in  an  approved  application,  including  changes  in  labeling,
indications, manufacturing processes or facilities, may require a submission to and approval by the FDA or the EMA, as
applicable, before the change can be implemented. A New Drug Application (“NDA”)/BLA or MAA supplement for a new
indication typically requires clinical data similar to that in the original application. The applicable regulatory authorities
would review such supplement using similar procedures and actions as in reviewing NDAs/BLAs and MAAs.  

Adverse event reporting and submission of periodic reports is required following marketing approval. Regulatory
authorities may withdraw product approvals or request product recalls, as well as impose other enforcement actions, if a
company fails to comply with regulatory standards, if it encounters problems following initial marketing, or if previously
unrecognized problems are subsequently discovered.

In addition, the manufacture, testing, packaging, labeling, and distribution of products after approval will need to
continue  to  conform  to  cGMPs.  Drug  and  biological  product  manufacturers,  including  us,  and  certain  of  their
subcontractors  are  subject  to  periodic  unannounced  inspections  by  the  FDA  or  the  EMA  for  compliance  with  cGMPs.
Accordingly, manufacturers must continue to expend time, money, and effort in the areas of production and quality control
to maintain compliance with cGMPs. In addition, prescription drug manufacturers in the U.S. must comply with applicable
provisions  of  the  Drug  Supply  Chain  Security  Act  and  provide  and  receive  product  tracing  information,  maintain
appropriate licenses, ensure they only work with other properly licensed entities and have procedures in place to identify
and  properly  handle  suspect  and  illegitimate  products.    If  we  or  any  of  our  contractors  are  unable  to  comply  with  the
requirements that are applicable to drug manufacturers, we or they may be subject to regulatory enforcement, or may need
to conduct a recall or take other corrective actions, which could result in material harm to us or our products.

Where we partner with third parties for the development, approval, and marketing of a product, such third parties
will be subject to the same regulatory obligations as we will. However, as we will not control the actions of the applicable
third parties, we will be reliant on them to meet their contractual and regulatory obligations. Accordingly, actions taken by
any of our partners could materially and adversely impact our business.

Risks Related to Commercialization

If  we,  or  our  commercial  partners,  are  unable  to  successfully  commercialize  our  product  candidates  or

experience significant delays in doing so, our business could be materially harmed.

Our  ability  to  generate  revenues  from  our  product  candidates  will  depend  on  the  successful  development  and
eventual commercialization of our product candidates. The success of our product candidates will depend on many factors,
including:

● successful completion of preclinical studies and clinical trials, and other work required by regulators;
● receipt and maintenance of marketing approvals from applicable regulatory authorities;
● obtaining  and  maintaining  patent  and  trade  secret  protection  and  non-patent,  exclusivities  for  our  product

candidates;

● maintaining regulatory approvals using our manufacturing facility in Lexington, Massachusetts;
● launch and commercialization of our products, if approved, whether alone or in collaboration with others;
● identifying and engaging effective distributors or resellers on acceptable terms in jurisdictions where we plan to

utilize third parties for the marketing and sales of our product candidates;

● acceptance of our products, if approved, by patients, the medical community, and third-party payers;
● effectively competing with existing therapies and gene therapies based on safety and efficacy profiles;

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● the strength of our marketing and distribution;
● the achievement optimal pricing based on durability of expression, safety, and efficacy;
● the ultimate content of the regulatory authority approved label, including the approved clinical indications, and

any limitations or warnings;

● any distribution or use restrictions imposed by regulatory authorities;
● the interaction of our products with any other medicines that patients may be taking or the restriction on the use

of our products with other medicines;

● the standard of care at the time of product approval;
● the relative convenience and ease of administration of our products;
● obtaining healthcare coverage and adequate reimbursement of our products;
● any price concessions, rebates, or discounts we may need to provide;
● complying  with  any  applicable  post-approval  commitments  and  requirements,  and  maintaining  a  continued

acceptable overall safety profile; and

● obtaining  adequate  reimbursement  for  the  total  patient  population  and  each  subgroup  to  sustain  a  viable

commercial business model in U.S. and EU markets.

Even  if  our  product  candidates  are  approved,  they  may  be  subject  to  limitations  that  make  commercialization
difficult. There may be limitations on the indicated uses and populations for which the products may be marketed. They
may also be subject to other conditions of approval, may contain significant safety warnings, including boxed warnings,
contraindications,  and  precautions,  may  not  be  approved  with  label  statements  necessary  or  desirable  for  successful
commercialization,  or  may  contain  requirements  for  costly  post-market  testing  and  surveillance,  or  other  requirements,
including  the  submission  of  a  risk  evaluation  and  mitigation  strategy  (“REMS”)  to  monitor  the  safety  or  efficacy  of  the
products.  Failure  to  achieve  or  implement  any  of  the  above  elements  could  result  in  significant  delays  or  an  inability  to
successfully commercialize our product candidates, which could materially harm our business.

The  affected  populations  for  our  gene  therapies  may  be  smaller  than  we  or  third  parties  currently  project,

which may affect the size of our addressable markets.

Our projections of the number of people who have the diseases we are seeking to treat, as well as the subset of
people with these diseases who have the potential to benefit from treatment with our therapies, are estimates based on our
knowledge  and  understanding  of  these  diseases  and  may  change.  The  total  addressable  market  opportunities  for  these
therapies  will  depend  upon  many  factors,  including  the  diagnosis  and  treatment  criteria  included  in  the  final  label,  if
approved  for  sale  in  specified  indications,  acceptance  by  the  medical  community,  patient  consent,  patient  access  and
product pricing and reimbursement, among other factors.

Prevalence  estimates  are  frequently  based  on  information  and  assumptions  that  are  not  exact  and  may  not  be
appropriate, and the methodology is forward-looking and speculative. For example, the addressable markets for certain of
our AAV-based gene therapies may be impacted by the prevalence of neutralizing antibodies to the capsids, which are an
integral component of our gene therapy constructs. Patients that have pre-existing antibodies to a particular capsid might
not be eligible for administration of a gene therapy that includes this particular capsid.  Moreover, neutralizing antibodies
may  be  developed  by  a  patient  following  administration  of  the  product,  which  may  render  the  patient  ineligible  for
subsequent  dosing.  The  use  of  such  data  to  support  addressable  market  estimates  involves  risks  and  uncertainties  and  is
subject to change based on various factors. Our estimates may prove to be incorrect and new studies and information may
change the estimated incidence or prevalence of the diseases we seek to address. The number of patients with the diseases
we are targeting may turn out to be lower than expected or may not be otherwise amenable to treatment with our products,
reimbursement may not be sufficient to sustain a viable business for all sub-populations being studied, or new patients may
become increasingly difficult to identify or access, any of which could adversely affect our results of operations and our
business.

Any approved gene therapy we seek to offer may fail to achieve the degree of market acceptance by physicians,

patients, third party payers and others in the medical community necessary for commercial success.

Doctors may be reluctant to accept gene therapy as a treatment option or, where available, choose to continue to
rely  on  existing  treatments.  The  degree  of  market  acceptance  of  any  of  our  product  candidates  that  receive  marketing
approval in the future will depend on many factors, including:

● the efficacy and potential advantages of our therapies compared with alternative treatments;

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● our  ability  to  convince  payers  of  the  long-term  cost-effectiveness  of  our  therapies  and,  consequently,  the

availability of third-party coverage and adequate reimbursement;

● the  cost  of  treatment  with  gene  therapies,  including  ours,  in  comparison  to  traditional  chemical  and  small

molecule treatments;

● the limitations on use and label requirements imposed by regulators;
● the convenience and ease of administration of our gene therapies compared with alternative treatments;
● the willingness of the target patient population to try new therapies, especially a gene therapy, and of physicians

to administer these therapies;

● the strength of marketing and distribution support;
● the prevalence and severity of any side effects;
● limited access to site of service that can perform the product preparation and administer the infusion; and
● any restrictions by regulators on the use of our products.

A  failure  to  gain  market  acceptance  for  any  of  the  above  reasons,  or  any  reasons  at  all,  by  a  gene  therapy  for
which we receive regulatory approval would likely hinder our ability to recapture our substantial investments in that and
other gene therapies and could have a material adverse effect on our business, financial condition, and results of operation.

If  the  market  opportunities  for  our  product  candidates  are  smaller  than  we  believe  they  are,  our  product

revenues may be adversely affected, and our business may suffer.

We  focus  our  research  and  product  development  on  treatments  for  severe  genetic  and  orphan  diseases.  Our
understanding of both the number of people who have these diseases, as well as the subset of people with these diseases
who have the potential to benefit from treatment with our product candidates, are based on estimates. These estimates may
prove to be incorrect and new studies may reduce the estimated incidence or prevalence of these diseases. The number of
patients  in  the  U.S.,  the  EU  and  elsewhere  may  turn  out  to  be  lower  than  expected,  may  not  be  otherwise  amenable  to
treatment  with  our  products  or  patients  may  become  increasingly  difficult  to  identify  and  access,  any  of  which  could
adversely affect our business, financial condition, results of operations and prospects.

Further, there are several factors that could contribute to making the actual number of patients who receive other
potential products less than the potentially addressable market. These include the lack of widespread availability of, and
limited  reimbursement  for,  new  therapies  in  many  underdeveloped  markets.  Further,  the  severity  of  the  progression  of  a
disease  up  to  the  time  of  treatment,  especially  in  certain  degenerative  conditions,  could  diminish  the  therapeutic  benefit
conferred by a gene therapy. Lastly, certain patients’ immune systems might prohibit the successful delivery of certain gene
therapy products to the target tissue, thereby limiting the treatment outcomes.

Ethical,  legal,  and  social  issues  associated  with  genetic  testing  may  reduce  demand  for  any  gene  therapy

products for which we obtain marketing approval.

Prior to receiving certain gene therapies, patients may be required to undergo genetic testing. Genetic testing has
raised  concerns  regarding  the  appropriate  utilization  and  the  confidentiality  of  information  provided  by  genetic  testing.
Genetic tests for assessing a person’s likelihood of developing a chronic disease have focused public attention on the need
to  protect  the  privacy  of  patient’s  underlying  genetic  information.  For  example,  concerns  have  been  expressed  that
insurance carriers and employers may use these tests to discriminate based on genetic information, resulting in barriers to
the  acceptance  of  genetic  tests  by  consumers.  This  could  lead  to  governmental  authorities  restricting  genetic  testing  or
calling for limits on or regulating the use of genetic testing, particularly for diseases for which there is no known cure. Any
of these scenarios could decrease demand for any products for which we obtain marketing approval.

If we, or our commercial partners, obtain approval to commercialize any of our product candidates outside of

the U.S., a variety of risks associated with international operations could materially adversely affect our business.

We expect that we will be subject to additional risks in commercializing any of our product candidates outside the

U.S., including:

● different regulatory requirements for approval of drugs and biologics in foreign countries;
● reduced protection for intellectual property rights;
● unexpected  changes  in  tariffs,  trade  barriers  and  regulatory  requirements  which  may  make  it  more  difficult  or

expensive to export or import products and supplies to or from the U.S.;

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● economic weakness, including inflation, or political instability in particular foreign economies and markets;
● compliance with tax, employment, immigration, and labor laws for employees living or traveling abroad;
● foreign currency fluctuations, which could result in increased operating expenses and reduced revenues, and other

obligations incident to doing business in another country;

● workforce uncertainty in countries where labor unrest is more common than in the U.S.;
● production  shortages  resulting  from  any  events  affecting  raw  material  supply  or  manufacturing  capabilities

abroad; and

● business  interruptions  resulting  from  geopolitical  actions,  including  war  and  terrorism  or  natural  disasters

including earthquakes, typhoons, floods, and fires.

We face substantial competition, and others may discover, develop, or commercialize competing products before

or more successfully than we do.

The  development  and  commercialization  of  new  biotechnology  and  biopharmaceutical  products,  including  gene
therapies, is highly competitive. We may face intense competition with respect to our current and future product candidates
from  large  and  specialty  pharmaceutical  companies  and  biotechnology  companies  worldwide,  who,  like  us,  currently
market  and  sell  products  or  are  pursuing  the  development  of  products  for  the  treatment  of  rare  diseases.  Potential
competitors  also  include  academic  institutions,  government  agencies  and  other  public  and  private  research  organizations
that  conduct  research,  seek  patent  protection,  and  establish  collaborative  arrangements  for  research,  development,
manufacturing, and commercialization. In recent years, there has been a significant increase in commercial and scientific
interest and financial investment in gene therapy as a therapeutic approach, which has intensified the competition in this
area.

We face worldwide competition from larger pharmaceutical companies, specialty pharmaceutical companies and
biotechnology  firms,  universities  and  other  research  institutions  and  government  agencies  that  are  developing  and
commercializing  pharmaceutical  products.  Our  key  competitors  focused  on  developing  therapies  in  various  indications,
include  among  others,  Pfizer,  Freeline  Therapeutics,  Intellia  Therapeutics,  Sangamo  Biosciences,  Voyager  Therapeutics,
Passage  Bio,  Roche,  PTC  Therapeutics,  Prilenia  Therapeutics,  CombiGene,  Caritas  Therapeutics,  Alnylam,  Wave  Life
Sciences, Bayer AG (AskBio), Amicus Therapeutics, 4D Molecular Therapeutics, Sanofi, Idorsia, Amicus, Spark, Takeda,
Chiesi,  CANbridge,  Abeona,  Annexon,  Vico,  Alexion  (AZ),  Neurona,  Combigene,  NeuExcell,  EpiBlok,  Biogen,  ionis,
Eisai and Lexeo.

Our  commercial  opportunity  could  be  reduced  or  eliminated  if  our  competitors  develop  and  commercialize
products that are safer, more effective, have fewer or less severe side effects, are more convenient or are less expensive
than  the  products  that  we  develop.  Our  competitors  also  may  obtain  FDA,  EMA,  or  other  regulatory  approval  for  their
products more rapidly than we do, which could result in our competitors establishing a strong market position before we
are able to enter the market. A competitor approval may also prevent us from entering the market if the competitor receives
any regulatory exclusivities that block our product candidates. Because we expect that gene therapy patients may generally
require  only  a  single  administration,  we  believe  that  the  first  gene  therapy  product  to  enter  the  market  for  a  particular
indication will likely enjoy a significant commercial advantage and may also obtain market exclusivity under applicable
orphan drug regimes.

Many  of  the  companies  with  which  we  are  competing  or  may  compete  in  the  future  have  significantly  greater
financial resources and expertise than we do in research and development, manufacturing, preclinical testing, conducting
clinical  trials,  obtaining  regulatory  approvals,  and  marketing  approved  products.  Moreover,  actions  taken  in  connection
with  the  Reorganization  to  streamline  our  product  portfolio  may  hamper  our  ability  to  remain  competitive.  Mergers  and
acquisitions in the pharmaceutical and biotechnology industries may result in more resources being concentrated among a
smaller number of our competitors. Smaller and other 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,  establishing  clinical  trial  sites  and  patient
registration for clinical trials, as well as in acquiring technologies complementary to, or necessary for, our programs.

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Risks Related to Our Dependence on Third Parties

We  rely,  and  expect  to  continue  to  rely,  on  third  parties  to  conduct,  supervise,  and  monitor  our  preclinical
studies and clinical trials, and those third parties may not perform satisfactorily, including failing to meet deadlines in
the conduct and completion of such trials or failing to comply with regulatory requirements.

We  rely  on  third  parties,  study  sites,  and  others  to  conduct,  supervise,  and  monitor  our  preclinical  and  clinical
trials  for  our  product  candidates  and  do  not  currently  plan  to  independently  conduct  clinical  or  preclinical  trials  of  any
other potential product candidates. We expect to continue to rely on third parties, such as CROs, clinical data management
organizations,  medical  and  scientific  institutions,  and  clinical  and  preclinical  investigators,  to  conduct  our  preclinical
studies and clinical trials.

While we have agreements governing the activities of such third parties, we have limited influence and control
over  their  actual  performance  and  activities.  For  instance,  our  third-party  service  providers  are  not  our  employees,  and
except  for  remedies  available  to  us  under  our  agreements  with  such  third  parties  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  preclinical  studies  or  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 trials may be repeated, extended, delayed, or terminated, we may not be able to obtain, or may be
delayed  in  obtaining,  marketing  approvals  for  our  product  candidates,  we  may  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. Our third-party service providers may also have relationships with other entities, some of which may be
our competitors, for whom they may also be conducting trials or other therapeutic development activities that could harm
our competitive position.

Our  reliance  on  these  third  parties  for  development  activities  reduces  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 third parties does not relieve us of our regulatory
responsibilities. For example, we will remain responsible for ensuring that each of our trials is conducted in accordance
with  the  general  investigational  plan  and  protocols  for  the  trial.  We  must  also  ensure  that  our  preclinical  trials  are
conducted  in  accordance  with  GLPs,  as  appropriate.  Moreover,  the  FDA  and  comparable  foreign  regulatory  authorities
require us to comply with GCPs for conducting, recording, and reporting the results of clinical trials to assure that data and
reported results are credible and accurate and that the rights, integrity, and confidentiality of trial participants are protected.
Regulatory  authorities  enforce  these  requirements  through  periodic  inspections  of  trial  sponsors,  clinical  and  preclinical
investigators, and trial sites. If we or any of our third-party service providers fail to comply with applicable GCPs or other
regulatory requirements, we or they may be subject to enforcement or other legal actions, the data generated in our trials
may be deemed unreliable and the FDA or comparable foreign regulatory authorities may require us to perform additional
studies.

In  addition,  we  will  be  required  to  report  on  certain  financial  interests  of  our  third-party  investigators  if  these
relationships  exceed  certain  financial  thresholds  or  meet  other  criteria.  The  FDA  or  comparable  foreign  regulatory
authorities  may  question  the  integrity  of  the  data  from  those  clinical  trials  conducted  by  investigators  who  may  have
conflicts of interest.

We cannot assure that, upon inspection by a given regulatory authority, such regulatory authority will determine
that  any  of  our  trials  complies  with  the  applicable  regulatory  requirements.  In  addition,  our  clinical  trials  must  be
conducted  with  product  candidates  that  were  produced  under  GMP  conditions.  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 can result in enforcement actions and adverse publicity.

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Agreements  with  third  parties  conducting  or  otherwise  assisting  with  our  clinical  or  preclinical  studies  might
terminate for a variety of reasons, including a failure to perform by the third parties. If any of our relationships with these
third  parties  terminate,  we  may  not  be  able  to  enter  into  arrangements  with  alternative  providers  or  to  do  so  on
commercially  reasonable  terms.  Switching  or  adding  additional  third  parties  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, if we need to enter into alternative arrangements, it could delay our product development activities and adversely
affect our business. Though we carefully manage our relationships with our third parties, there can be no assurance that we
will  not  encounter  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, and results of operations.

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

We  rely  on  third  parties  for  important  aspects  of  our  development  programs.  If  these  parties  do  not  perform
successfully  or  if  we  are  unable  to  enter  into  or  maintain  key  collaborations  or  other  contractual  arrangements,  our
business could be adversely affected.

We have in the past entered into, and expect in the future to enter into, collaborations with other companies and
academic  research  institutions  with  respect  to  important  elements  of  our  development  programs.  Any  collaboration  we
enter into may pose several risks, including the following:

● collaborators  have  significant  discretion  in  determining  the  efforts  and  resources  that  they  will  apply  to  these

collaborations;

● we may have limited or no control over the design or conduct of clinical trials sponsored by collaborators;
● we may be hampered from entering into collaboration arrangements if we are unable to obtain consent from our

licensors to enter into sublicensing arrangements of technology we have in-licensed;

● if any collaborator does not conduct the clinical trials they sponsor in accordance with regulatory requirements or
stated protocols, we will not be able to rely on the data produced in such trials in our further development efforts;

● collaborators may not perform their obligations as expected;
● collaborators may also have relationships with other entities, some of which may be our competitors;
● collaborators may not pursue development and commercialization of any product candidates 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 develop, independently or with third parties, products that compete directly or indirectly with
our products or product candidates, if, for instance, 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;

● our collaboration arrangements may impose restrictions on our ability to undertake other development efforts that

may appear to be attractive to us;

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

● a collaborator with marketing and distribution rights that achieves regulatory approval may not commit sufficient

resources to the marketing and distribution of such product or products;

● disagreements with collaborators, including over proprietary rights, contract interpretation or the preferred course
of development, could cause delays or termination of the research, development or commercialization of product
candidates, lead to additional responsibilities for us, delay or impede reimbursement of certain expenses or 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  rights  or  expose  us  to
potential litigation;

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

potential liability; and

● collaborations  may  in  some  cases  be  terminated  for  the  convenience  of  the  collaborator  and,  if  terminated,  we
could  be  required  to  expend  additional  funds  to  pursue  further  development  or  commercialization  of  the
applicable product or product candidates.

If  any  collaboration  does  not  result  in  the  successful  development  and  commercialization  of  products  or  if  a
collaborator were to terminate an agreement with us, we may not receive future research funding or milestone or royalty
payments under that collaboration, and we may lose access to important technologies and capabilities of the collaboration.
All the risks relating to product development, regulatory approval and commercialization described herein also apply to the
activities of any development collaborators.

Risks Related to Our Intellectual Property

We  rely  on  licenses  of  intellectual  property  from  third  parties,  and  such  licenses  may  not  provide  adequate
rights, may be open to multiple interpretations or may not be available in the future on commercially reasonable terms
or at all, and our licensors may be unable to obtain and maintain patent protection for the technology or products that
we license from them.

We currently are heavily reliant upon licenses of proprietary technology from third parties that are important or
necessary to the development of our technology and products, including technology related to our manufacturing process,
our vector platform, our gene cassettes, and the therapeutic genes of interest we are using. These and other licenses may
not  provide  adequate  rights  to  use  such  technology  in  all  relevant  fields  of  use.  Licenses  to  additional  third-party
technology that may be required for our development programs may not be available in the future or may not be available
on commercially reasonable terms, which could have a material adverse effect on our business and financial condition.

In some circumstances, we may not have the right, or have otherwise given up the right, to control the preparation,
filing and prosecution of patent applications, or to maintain the patents, covering technology that we own or license from
third parties. In addition, some of our agreements with our licensors require us to obtain consent from the licensor before
we  can  enforce  patent  rights,  and  our  licensor  may  withhold  such  consent  or  may  not  provide  it  on  a  timely  basis.
Therefore, we cannot be certain that these patents and applications will be prosecuted and enforced in a manner consistent
with the best interests of our business which may materially impact any revenue that may be due to us in connection with
such  patents.  In  addition,  if  third  parties  who  license  patents  to  us  fail  to  maintain  such  patents,  or  lose  rights  to  those
patents, the rights we have licensed may be reduced or eliminated.

Our intellectual property licenses with third parties may be subject to disagreements over contract interpretation,
which could narrow the scope of our rights to the relevant intellectual property or technology or increase our financial or
other obligations to our licensors. The agreements under which we license intellectual property or technology from third
parties  are  complex,  and  certain  provisions  in  such  agreements  may  be  susceptible  to  multiple  interpretations.  The
resolution of any contract interpretation disagreement that may arise could narrow what we believe to be the scope of our
rights to the relevant intellectual property or technology or increase what we believe to be our financial or other obligations
under the relevant agreement, either of which could have a material adverse effect on our business and financial condition.

If we fail to comply with our obligations in our intellectual property licenses with third parties, we could lose

rights that are important to our business.

Our  licensing  arrangements  with  third  parties  may  impose  diligence,  development  and  commercialization
timelines, milestone payment, royalty, insurance, and other obligations on us. If we fail to comply with these obligations,
our counterparties may have the right to terminate these agreements either in part or in whole, in which case we might not
be  able  to  develop,  manufacture  or  market  any  product  that  is  covered  by  these  agreements  or  may  face  other  penalties
under  the  agreements.  Such  an  occurrence  could  materially  adversely  affect  the  value  of  the  product  candidate  being
developed under any such agreement or may otherwise result in reputational damage to our business. Termination of these
agreements or reduction or elimination of our rights under these agreements may result in our having to negotiate new or
amended agreements with less favorable terms or cause us to lose our rights under these agreements, including our rights to
important intellectual property or technology.

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If we are unable to obtain and maintain patent protection for our technology and products, or if the scope of

the patent protection is not sufficiently broad, our ability to successfully commercialize our products may be impaired.

We rely, in part, upon a combination of forms of intellectual property, including in-licensed and owned patents to
protect our intellectual property. Our success depends in large part on our ability to obtain and maintain this protection in
the U.S., the European Union, and other countries, in part by filing patent applications related to our novel technologies
and product candidates. Our patents may not provide us with any meaningful commercial protection, prevent competitors
from competing with us or otherwise provide us with any competitive advantage. The patents we own currently are and
may  become  subject  to  future  patent  opposition  or  similar  proceedings.  Additionally,  the  patent  prosecution  process  is
expensive, time-consuming, and uncertain, and in certain instances we have chosen, and in the future we may choose, not
to file and prosecute all necessary or desirable patent applications. For example, our defense of certain patent cases in each
of Canada, the United Kingdom, the Netherlands and the U.S. pertaining to licensed rights of etranacogene dezaparvovec
was assumed by CSL Behring on October 11, 2023. These oppositions and future patent oppositions may result in loss of
scope  of  some  claims  or  the  entire  patent  and,  with  respect  to  our  rights  under  the  CSL  Agreement,  could  affect  CSL’s
successful commercialization of HEMGENIX® and, in turn, could negatively impact our financial position. Additionally,
our competitors may be able to circumvent our owned or licensed patents by developing similar or alternative technologies
or products in a non-infringing manner.

Successful  challenges  to  our  patents  may  result  in  loss  of  exclusivity  or  freedom  to  operate  or  in  patent  claims
being narrowed, invalidated, or held unenforceable, in whole or in part, which could limit our ability or the ability of our
licensees to stop others from using or commercializing similar or identical technology and products, or limit the duration of
the patent protection of our technology and products.

It is also possible that we will fail to identify patentable aspects of our research and development output before it
is  too  late  to  obtain  patent  protection.  Additionally,  given  the  amount  of  time  required  for  the  development,  testing  and
regulatory review of new product candidates, patents protecting such candidates might expire before or shortly after such
candidates  are  commercialized.  As  a  result,  our  owned  and  licensed  patent  portfolio  may  not  provide  us  with  sufficient
rights to exclude others from commercializing products similar or identical to ours.

The  patent  position  of  biotechnology  and  pharmaceutical  companies  generally  is  highly  uncertain,  involves
complex legal and factual questions and has in recent years been the subject of much litigation. In addition, the laws of
foreign countries may not protect our rights to the same extent as the laws of the U.S. For example, EU patent law with
respect  to  the  patentability  of  methods  of  treatment  of  the  human  body  is  more  limited  than  U.S.  law.  Publications  of
discoveries  in  the  scientific  literature  often  lag  the  actual  discoveries,  and  patent  applications  in  the  U.S.  and  other
jurisdictions  are  typically  not  published  until  18  months  after  their  priority  date,  or  in  some  cases  at  all.  Therefore,  we
cannot  know  with  certainty  whether  we  were  the  first  to  make  the  inventions  or  that  we  were  the  first  to  file  for  patent
protection  of  the  inventions  claimed  in  our  owned  or  licensed  patents  or  pending  patent  applications.  As  a  result,  the
issuance, scope, validity, enforceability, and commercial value of our patent rights are highly uncertain. Our pending and
future patent applications may not result in patents being issued that protect our technology or products, in whole or in part,
or  which  effectively  prevent  others  from  commercializing  competitive  technologies  and  products.  Changes  in  either  the
patent laws or interpretation of the patent laws in the European Union, the U.S. or other countries may diminish the value
of  our  patents  or  narrow  the  scope  of  our  patent  protection.  Our  inability  to  obtain  and  maintain  appropriate  patent
protection for any one of our products could have a material adverse effect on our business, financial condition, and results
of operations.

We  may  become  involved  in  lawsuits  to  protect  or  enforce  our  patents  or  other  intellectual  property,  or  third
parties  may  assert  their  intellectual  property  rights  against  us,  which  could  be  expensive,  time  consuming  and
unsuccessful.

Competitors may infringe on our owned or licensed patents or other intellectual property. To counter infringement
or  unauthorized  use,  we  may  be  required  to  file  infringement  claims,  which  can  be  expensive  and  time  consuming.  An
adverse result in any litigation proceeding could put one or more of our patents at risk of being invalidated, maintained in a
more narrowly amended form or interpreted narrowly.

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Even  if  resolved  in  our  favor,  litigation  or  other  legal  proceedings  relating  to  intellectual  property  claims  may
cause  us  to  incur  significant  expenses,  increase  our  operating  losses,  reduce  available  resources,  and  could  distract  our
technical and management personnel from their normal responsibilities. In addition, there could be public announcements
of the results of hearings, motions or other interim proceedings or developments, which could have an adverse effect on the
price of our ordinary shares.

Third parties may initiate legal proceedings alleging that we are infringing their intellectual property rights, the
outcome  of  which  would  be  uncertain  and  could  have  a  material  adverse  effect  on  the  success  of  our  business.  For
example, outside of the U.S. two of the patents we own are subject to patent opposition. If these or future oppositions are
successful or if we are found to otherwise infringe a third party's intellectual property rights, we could be required to obtain
a license from such third party to continue developing and marketing our products and technology. We may not be able to
obtain the required license on commercially reasonable terms or at all. Even if we could obtain a license, it could be non-
exclusive, thereby giving our competitors access to the same technologies licensed to us. We could be forced, including by
court  order,  to  cease  commercializing  the  infringing  technology  or  product  or  otherwise  to  cease  using  the  relevant
intellectual property. In addition, we could be found liable for monetary damages, including treble damages and attorneys’
fees if we are found to have willfully infringed a patent. A finding of infringement could prevent us from commercializing
our product candidates or force us to cease or materially modify some of our business operations, which could materially
harm our business. Claims that we have misappropriated the confidential information or trade secrets of third parties could
have a similar negative impact on our business.

In addition, legal proceedings relating to intellectual property claims, with or without merit, are unpredictable and
generally  expensive  and  time-consuming  and  is  likely  to  divert  significant  resources  from  our  core  business,  including
distracting  our  technical  and  management  personnel  from  their  normal  responsibilities.  Furthermore,  because  of  the
substantial amount of discovery required in connection with intellectual property litigation, there is a risk that some of our
confidential information could be compromised by disclosure during this type of litigation.

For example, we are aware of patents or patent applications owned by third parties that relate to some aspects of
our  programs  that  are  still  in  development.  In  some  cases,  because  we  have  not  determined  the  final  methods  of
manufacture,  the  method  of  administration  or  the  therapeutic  compositions  for  these  programs,  we  cannot  determine
whether rights under such third-party positions will be needed. In addition, in some cases, we believe that the claims of
these patents are invalid or not infringed or will expire before commercialization. However, if such patents are needed and
found to be valid and infringed, we could be required to obtain licenses, which might not be available on commercially
reasonable  terms,  or  to  cease  or  delay  commercializing  certain  product  candidates,  or  to  change  our  programs  to  avoid
infringement.

If we are unable to protect the confidentiality of our proprietary information and know-how, the value of our

technology and products could be adversely affected.

In  addition  to  seeking  patent  protection,  we  also  rely  on  other  proprietary  rights,  including  protection  of  trade
secrets, know-how and confidential and proprietary information. To maintain the confidentiality of our trade secrets and
proprietary information, we enter into confidentiality agreements with our employees, consultants, collaborators and other
third  parties  who  have  access  to  our  trade  secrets.  Our  agreements  with  employees  also  provide  that  any  inventions
conceived  by  the  individual  while  rendering  services  to  us  will  be  our  exclusive  property.  However,  we  may  not  obtain
these agreements in all circumstances, and individuals with whom we have these agreements may not comply with their
terms.  The  assignment  of  intellectual  property  rights  may  not  be  self-executing,  or  the  assignment  agreements  may  be
breached, and we may be forced to bring claims against third parties, or defend claims that they may bring against us, to
determine the ownership of what we regard as our intellectual property. In addition, in the event of unauthorized use or
disclosure of our trade secrets or proprietary information, these agreements, even if obtained, may not provide meaningful
protection,  particularly  for  our  trade  secrets  or  other  confidential  information.  To  the  extent  that  our  employees,
consultants,  or  contractors  use  technology  or  know-how  owned  by  third  parties  in  their  work  for  us,  disputes  may  arise
between us and those third parties as to the rights in related inventions.

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Adequate remedies may not exist in the event of unauthorized use or disclosure of our confidential information
including a breach of our confidentiality agreements. Enforcing a claim that a party illegally disclosed or misappropriated a
trade secret is difficult, expensive, and time consuming, and the outcome is unpredictable. In addition, some courts in and
outside  of  the  U.S.  are  less  willing  or  unwilling  to  protect  trade  secrets.  If  any  of  our  trade  secrets  were  to  be  lawfully
obtained or independently developed by a competitor or other third party, we would have no right to prevent them from
using  that  technology  or  information  to  compete  with  us.  The  disclosure  of  our  trade  secrets  or  the  independent
development  of  our  trade  secrets  by  a  competitor  or  other  third  party  would  impair  our  competitive  position  and  may
materially harm our business, financial condition, results of operations, stock price and prospects.

Our reliance on third parties may require us to share our trade secrets, which could increase the possibility that

a competitor will discover them or that our trade secrets will be misappropriated or disclosed.

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

In addition, these agreements typically restrict the ability of our collaborators, advisors, and consultants to publish
data  potentially  relating  to  our  trade  secrets.  Our  academic  collaborators  typically  have  rights  to  publish  data,  if  we  are
notified in advance and may delay publication for a specified time to secure our intellectual property rights arising from the
collaboration.  In  other  cases,  publication  rights  are  controlled  exclusively  by  us,  although  in  some  cases  we  may  share
these rights with other parties. We also conduct joint research and development programs that may require us to share trade
secrets  under  the  terms  of  our  research  and  development  partnerships  or  similar  agreements.  Some  courts  inside  and
outside  the  U.S.  are  less  willing  or  unwilling  to  protect  trade  secrets.  If  any  of  our  trade  secrets  were  to  be  lawfully
obtained or independently developed by a competitor, we would have no right to prevent them, or those with whom they
communicate, from using that technology or information to compete with us.

Intellectual property rights do not necessarily address all potential threats to our competitive advantage. 

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

● others may be able to make gene therapy products that are similar to our product candidates or utilize similar gene

therapy technology but that are not covered by the claims of the patents that we own or have licensed;

● we or our licensors or future collaborators might not have been the first to make the inventions covered issued

patents or pending patent applications that we own or have licensed;

● we or our licensors or future collaborators might not have been the first to file patent applications covering certain

of our inventions;

● others may independently develop similar or alternative technologies or duplicate any of our technologies without

infringing our intellectual property rights;

● it is possible that our pending patent applications will not lead to issued patents;
● issued patents that we own or have licensed may be held invalid or unenforceable, as a result of legal challenges

by our competitors;  

● our  competitors  might  conduct  activities  in  countries  where  we  do  not  have  patent  rights  and  then  use  the
information  learned  from  such  activities  to  develop  competitive  products  for  sale  in  our  major  commercial
markets;

● we may not develop additional proprietary technologies that are patentable; and
● the patents of others may have an adverse effect on our business.

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The occurrence of any of these events could seriously harm our business.

Risks Related to Pricing and Reimbursement

We  and  our  commercial  partner  face  uncertainty  related  to  insurance  coverage  of,  and  pricing  and

reimbursement for, HEMGENIX® and other product candidates for which we may receive marketing approval.

We  anticipate  that  the  cost  of  treatment  using  our  product  candidates  will  be  significant.  We  expect  that  most
patients and their families will not be capable of paying for our products themselves. There will be no commercially viable
market  for  our  product  candidates  without  reimbursement  from  third  party  payers,  such  as  government  health
administration authorities, private health insurers and other organizations. Even if there is a commercially viable market, if
the level of third-party reimbursement is below our expectations, most patients may not be able to afford treatment with our
products and our revenues and gross margins will be adversely affected, and our business will be harmed.

Government  authorities  and  other  third-party  payers,  such  as  private  health  insurers  and  health  maintenance
organizations,  decide  for  which  medications  they  will  pay  and,  subsequently,  establish  reimbursement  levels.
Reimbursement systems vary significantly by country and by region, and reimbursement approvals must be obtained on a
country-by-country  basis.  Government  authorities  and  third-party  payers  have  attempted  to  control  costs  by  limiting
coverage and the amount of reimbursement for particular medications and procedures and negotiating or requiring payment
of  manufacturer  rebates.  Increasingly,  third  party  payers  require  drug  companies  to  provide  them  with  predetermined
discounts from list prices, are exerting influence on decisions regarding the use of particular treatments and are limiting
covered indications.

Moreover, payment methodologies may be subject to changes in healthcare legislation and regulatory initiatives.
For example, the Center for Medicare & Medicaid Innovation at the Centers for Medicare & Medicaid Services (“CMS”)
may  develop  new  payment  and  delivery  models,  such  as  bundled  payment  models.  In  addition,  recently  there  has  been
heightened governmental scrutiny over the manner in which manufacturers set prices for their marketed products, which
has  resulted  in  several  U.S.  Congressional  inquiries  and  proposed  and  enacted  federal  and  state  legislation  designed  to,
among other things, bring more transparency to drug pricing, reduce the cost of prescription drugs under government payor
programs,  and  review  the  relationship  between  pricing  and  manufacturer  patient  assistance  programs.  Most  recently,  on
August 16, 2022, the Inflation Reduction Act of 2022, or IRA, was signed into law. Among other things, the IRA requires
manufacturers of certain drugs to engage in price negotiations with Medicare (with the maximum fair prices for the first
year  of  the  negotiation  program  being  initially  applicable  in  2026),  with  prices  that  can  be  negotiated  subject  to  a  cap;
imposes  rebates  for  certain  drugs  under  Medicare  Part  B  and  Medicare  Part  D  to  penalize  price  increases  that  outpace
inflation  (first  due  in  2023);  and  replaces  the  Part  D  coverage  gap  discount  program  with  a  new  discounting  program
(beginning in 2025). We expect that additional U.S. federal healthcare reform measures will be adopted in the future, any
of  which  could  limit  the  amounts  that  the  U.S.  federal  government  will  pay  for  healthcare  products  and  services,  which
could  result  in  reduced  demand  for  our  product  candidates  or  additional  pricing  pressures  and  could  seriously  harm  our
business. 

Individual  states  in  the  U.S.  have  also  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. Legally mandated price controls on payment
amounts  by  third-party  payors  or  other  restrictions  could  seriously  harm  our  business.  In  addition,  regional  healthcare
authorities and individual hospitals are increasingly using bidding procedures to determine what pharmaceutical products
and which suppliers will be included in their prescription drug healthcare programs. This could reduce the ultimate demand
for our product candidates or put pressure on our product pricing. Furthermore, there has been increased interest by third-
party  payors  and  governmental  authorities  in  reference  pricing  systems  and  publication  of  discounts  and  list  prices.
Prescription  drugs  and  biological  products  that  are  in  violation  of  these  requirements  will  be  included  on  a  public  list.
These  reforms  could  reduce  the  ultimate  demand  for  our  product  candidates  or  put  pressure  on  our  product  pricing  and
could seriously harm our business. 

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In  the  EU,  similar  political,  economic,  and  regulatory  developments  may  affect  our  ability  to  profitably
commercialize  our  product  candidates,  if  approved.  In  addition  to  continuing  pressure  on  prices  and  cost  containment
measures,  legislative  developments  at  the  EU  or  member  state  level  may  result  in  significant  additional  requirements  or
obstacles  that  may  increase  our  operating  costs.  The  delivery  of  healthcare  in  the  EU,  including  the  establishment  and
operation of health services and the pricing and reimbursement of medicines, is almost exclusively a matter for national,
rather than EU, law and policy. National governments and health service providers have different priorities and approaches
to  the  delivery  of  health  care  and  the  pricing  and  reimbursement  of  products  in  that  context.  In  general,  however,  the
healthcare budgetary constraints in most EU member states have resulted in restrictions on the pricing and reimbursement
of  medicines  by  relevant  health  service  providers.  Coupled  with  ever-increasing  EU  and  national  regulatory  burdens  on
those wishing to develop and market products, this could prevent or delay marketing approval of our product candidates,
restrict or regulate post-approval activities and affect our ability to commercialize our product candidates, if approved. In
markets  outside  of  the  U.S.  and  EU,  reimbursement  and  healthcare  payment  systems  vary  significantly  by  country,  and
many countries have instituted price ceilings on specific products and therapies. 

We cannot predict the likelihood, nature or extent of government regulation that may arise from future legislation
or administrative or judicial action in the U.S., the EU, or any other jurisdiction. If we or any third parties we may engage
are slow or unable to adapt to changes in existing requirements or the adoption of new requirements or policies, or if we or
such third parties are not able to maintain regulatory compliance, our product candidates may lose any regulatory approval
that may have been obtained and we may not achieve or sustain profitability.

The pricing review period and pricing negotiations for new medicines take considerable time and have uncertain
results.  Pricing  review  and  negotiation  usually  begin  only  after  the  receipt  of  regulatory  marketing  approval,  and  some
authorities  require  approval  of  the  sale  price  of  a  product  before  it  can  be  marketed.  In  some  markets,  particularly  the
countries  of  the  European  Union,  prescription  pharmaceutical  pricing  remains  subject  to  continuing  direct  governmental
control and to drug reimbursement programs even after initial approval is granted and price reductions may be imposed.
Prices of medical products may also be subject to varying price control mechanisms or limitations as part of national health
systems if products are considered not cost-effective or where a drug company’s profits are deemed excessive. In addition,
pricing  and  reimbursement  decisions  in  certain  countries  can  lead  to  mandatory  price  reductions  or  additional
reimbursement  restrictions  in  other  countries.  Because  of  these  restrictions,  any  product  candidates  for  which  we  may
obtain marketing approval may be subject to price regulations that delay or prohibit our or our partners’ commercial launch
of the product in a particular jurisdiction. In addition, we or any collaborator may elect to reduce the price of our products
to  increase  the  likelihood  of  obtaining  reimbursement  approvals.  If  countries  impose  prices  which  are  not  sufficient  to
allow us or any collaborator to generate a profit, we or any collaborator may refuse to launch the product in such countries
or withdraw the product from the market. If pricing is set at unsatisfactory levels, or if the price decreases, our business
could be harmed, possibly materially. If we fail to obtain and sustain an adequate level of coverage and reimbursement for
our products by third party payers, our ability to market and sell our products could be adversely affected and our business
could be harmed.

Due  to  the  generally  limited  addressable  market  for  our  target  orphan  indications  and  the  potential  for  our

therapies to offer therapeutic benefit in a single administration, we face uncertainty related to our product candidates.

The relatively small market size for orphan indications and the potential for long-term therapeutic benefit from a
single  administration  present  challenges  to  pricing  review  and  negotiation  of  our  product  candidates  for  which  we  may
obtain  marketing  authorization.  Most  of  our  product  candidates  target  rare  diseases  with  relatively  small  patient
populations.  If  we  are  unable  to  obtain  adequate  levels  of  reimbursement  relative  to  these  small  markets,  our  ability  to
support  our  development  and  commercial  infrastructure  and  to  successfully  market  and  sell  our  product  candidates  for
which we may obtain marketing approval could be adversely affected.

We also anticipate that many or all our gene therapy product candidates may provide long-term, and potentially
curative  benefit,  with  a  single  administration.  This  is  a  different  paradigm  than  that  of  many  other  pharmaceutical
therapies,  which  often  require  an  extended  course  of  treatment  or  frequent  administration.  As  a  result,  governments  and
other payers may be reluctant to provide the significant level of reimbursement that we seek at the time of administration of
our  gene  therapies  or  may  seek  to  tie  reimbursement  to  clinical  evidence  of  continuing  therapeutic  benefit  over  time.
Additionally, there may be situations in which our product candidates will need to be administered more than once, which
may further complicate the pricing and reimbursement for these treatments. In addition, considering the anticipated cost of
these therapies, governments and other payers may be particularly restrictive in making coverage decisions. These factors
could limit our commercial success and materially harm our business.

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Risks Related to Our Financial Position and Need for Additional Capital

We had net losses in the years ended December 31, 2023 and 2022, have incurred significant losses in previous
years and expect to incur losses during the current and over the next several years and may never achieve or maintain
profitability.

We had a net loss of $308.5 million in the year ended December 31, 2023, and a net loss of $126.8 million in the
year ended December 31, 2022. We incurred  a gain of 329.6 million in year ended December 31, 2021; however, such gain
was primarily attributable to one-time license revenue from CSL Behring. We have incurred significant losses in the years
prior to 2021. As of December 31, 2023, we had an accumulated deficit of $890.4 million. In the past, we have financed
our operations primarily through the sale of equity securities and convertible debt, venture loans, upfront payments from
our collaboration partners and, to a lesser extent, subsidies and grants from governmental agencies and fees for services.
We expect to finance our operations in 2024 and into the second quarter of 2027 primarily from our existing cash, cash
equivalents,  and  cash  resources.  We  have  devoted  substantially  all  our  financial  resources  and  efforts  to  research  and
development, including preclinical studies and clinical trials. We expect to continue to incur significant expenses and losses
over  the  next  several  years,  and  our  net  losses  may  fluctuate  significantly  from  quarter  to  quarter  and  year  to  year.  We
anticipate that we will continue to incur net losses for the foreseeable future as we:

● continue  to  fund  AMT-130  in  its  ongoing  clinical  trials  and  advance  our  other  product  candidates  into  clinical

development;

● incur the costs associated with the manufacturing of preclinical, clinical and commercial supplies of our product

candidates;

● seek regulatory approvals for any product candidates that successfully complete clinical trials;
● maintain, expand and protect our intellectual property portfolio;
● hire additional personnel to support our business;
● enhance our operational, financial and management information systems and personnel; and
● incur legal, accounting and other expenses operating as a public company.

While  we  expect  that,  as  a  result  of  the  Reorganization,  we  will  realize  some  cost  savings  and  reduce  our
operating expenses, we may never succeed in materially reducing our operating expenses and, even if we do, may never
generate revenues that are sufficient to achieve or sustain profitability. Even if we do achieve profitability, we may not be
able to sustain or increase profitability on a quarterly or annual basis. Our failure to become and remain profitable would
depress the value of our company and could impair our ability to raise capital, expand our business, maintain our research
and development efforts, diversify our product offerings, or even continue our operations.

We will need to raise additional funding in order to advance the development of our product candidates, which
may not be available on acceptable terms, or at all. Failure to obtain capital when needed may force us to delay, limit or
terminate  our  product  development  efforts  or  other  operations  which  could  have  a  material  adverse  effect  on  our
business, financial condition, results of operations and cash flows.

We  expect  to  incur  significant  expenses  in  connection  with  our  ongoing  activities  and  we  will  need  to  obtain
substantial  additional  funding  in  order  to  fund  the  development  of  our  product  pipeline  and  support  our  continuing
operations.  In  addition,  we  have  based  our  estimate  of  our  financing  requirements  on  assumptions  that  may  prove  to  be
wrong, and we could use our capital resources sooner than we currently expect.

Adequate capital may not be available to us when needed or may not be available on acceptable terms. Our ability
to  obtain  additional  debt  financing  may  be  limited  by  covenants  we  have  made  under  our  2023  Amended  Facility  with
Hercules  and  our  pledge  to  Hercules  of  substantially  all  our  assets  as  collateral.  Our  ability  to  obtain  additional  equity
financing may be limited by our shareholders’ willingness to approve the issuance of additional share capital. If we raise
additional capital through the sale of equity or convertible debt securities, our shareholders’ ownership interest could be
diluted,  and  the  terms  of  these  securities  may  include  liquidation  or  other  preferences  that  adversely  affect  the  rights  of
holders of our ordinary shares.

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If  we  raise  additional  funds  through  collaborations,  strategic  alliances,  marketing,  distribution,  or  licensing
arrangements  with  third  parties,  we  may  have  to  issue  additional  equity,  relinquish  valuable  rights  to  our  technologies,
future revenue streams, products, or product candidates, or grant licenses on terms that may not be favorable to us. If we
are unable to raise capital when needed or on attractive terms, we could be forced to delay, reduce, or further eliminate our
research and development programs or any future commercialization efforts, which would have a negative impact on our
financial condition, results of operations and cash flows.

Our existing and any future indebtedness could adversely affect our ability to operate our business.

As of December 31, 2023, we had $100.0 million of outstanding principal of borrowings under the 2023 Amended
Facility, which we are required to repay in full in January 2027. We might not be able to finance our operations into the
second quarter of 2027 from our existing cash, cash equivalents, and cash resources if we are not able to refinance the 2023
Amended Facility prior to the January 2027 maturity date. We could in the future incur additional debt obligations beyond
our borrowings from Hercules. Our existing loan obligations, together with other similar obligations that we may incur in
the future, could have significant adverse consequences, including:

● requiring us to dedicate a portion of our cash resources to the payment of interest and principal, reducing money
available  to  fund  working  capital,  capital  expenditures,  research  and  development  and  other  general  corporate
purposes;

● increasing our vulnerability to adverse changes in general economic, industry and market conditions;
● subjecting us to restrictive covenants that may reduce our ability to take certain corporate actions or obtain further

debt or equity financing;

● limiting  our  flexibility  in  planning  for,  or  reacting  to,  changes  in  our  business  and  the  industry  in  which  we

compete; and

● placing us at a disadvantage compared to our competitors that have less debt or better debt servicing options.

We may not have sufficient funds and may be unable to arrange for additional financing to pay the amounts due
under  our  existing  loan  obligations.  Failure  to  make  payments  or  comply  with  other  covenants  under  2023  Amended
Facility  could  result  in  an  event  of  default  and  acceleration  of  amounts  due.  Under  the  2023  Amended  Facility,  the
occurrence of an event that would reasonably be expected to have a material adverse effect on our business, operations,
assets, or condition is an event of default. If an event of default occurs and the lender accelerates the amounts due, we may
not be able to make accelerated payments, and the lender could seek to enforce security interests in the collateral securing
such indebtedness, which includes substantially all our assets.

Our 2023 Amended Facility bears a variable interest rate with a fixed floor. The U.S. Federal Reserve has raised,
and may in the future further raise, interest rates to combat the effects of recent high inflation. An increase in interest rates
by  the  Federal  Reserve  has  and  could  in  the  future  cause  the  prime  rate  to  increase,  which  has  and  could  in  the  future
increase  our  debt  service  obligations.  Significant  increases  in  such  obligations  could  have  a  negative  impact  on  our
financial  position  or  operating  results,  including  cash  available  for  servicing  our  indebtedness,  or  result  in  increased
borrowing costs in the future

Our business development strategy may not produce the cash flows expected or could result in additional costs

and challenges.

In  July  2021,  we  acquired  uniQure  France  and  its  lead  program,  now  known  as  AMT-260,  targeting  refractory
MTLE, and may, from time to time, enter into strategic transactions consistent with our business development objectives.
Any acquisition or strategic transaction could expose us to unknown liabilities and risks, and we may incur additional costs
and  expenses  necessary  to  address  an  acquired  company’s  failure  to  comply  with  laws  and  governmental  rules  and
regulations. We could incur additional costs related to resources necessary to align our business practices and operations
with that of the acquired company. Moreover, we cannot be sure that the anticipated or intended benefits of any acquisition
or strategic transaction would be realized in a timely manner, if at all.

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Risks Related to Other Legal Compliance Matters

Our relationships with employees, customers and third parties are subject to applicable laws and regulations,
the  non-compliance  of  any  of  which  could  have  a  material  adverse  effect  on  our  business,  financial  condition,  and
results of operations.

Healthcare  providers,  physicians,  other  practitioners,  and  third-party  payers  will  play  a  primary  role  in  the
recommendation and prescription of any products for which we obtain marketing approval. Our future arrangements with
third  party  payers  and  customers  may  expose  us  to  broadly  applicable  anti-bribery  laws,  including  the  Foreign  Corrupt
Practices  Act,  as  well  as  fraud  and  abuse  and  other  U.S.  and  international  healthcare  laws  and  regulations  that  may
constrain  the  business  or  financial  arrangements  and  relationships  through  which  we  would  be  able  to  market,  sell  and
distribute any products for which we obtain marketing approval.

Efforts  to  ensure  that  our  business  arrangements  with  third  parties  will  comply  with  applicable  laws  and
regulations  could  involve  substantial  costs.  If  our  operations,  or  the  activities  of  our  collaborators,  distributors  or  other
third-party agents are found to be in violation of any of these laws or any other governmental regulations that may apply to
us, we may be subject to significant civil, criminal, and administrative penalties, damages, fines, imprisonment, exclusion
from participation in government funded healthcare programs and the curtailment or restructuring of our operations.

Additionally, we are subject to various labor and employment laws and regulations. These laws and regulations
relate to matters such as employment discrimination, wage and hour laws, requirements to provide meal and rest periods or
other  benefits,  family  leave  mandates,  employee  and  independent  contractor  classification  rules,  requirements  regarding
working conditions and accommodations to certain employees, citizenship or work authorization and related requirements,
insurance and workers’ compensation rules, healthcare laws, scheduling notification requirements and anti-discrimination
and anti-harassment laws. Complying with these laws and regulations, including ongoing changes thereto, subjects us to
substantial expense and non-compliance could expose us to significant liabilities. In particular, we are subject to allegations
of Sarbanes-Oxley whistleblower retaliation and employment discrimination and retaliation, and we may in the future be
subject to additional claims of non-compliance with similar or other laws and regulations.

The  costs  associated  with  an  alleged  or  actual  violation  of  any  of  the  foregoing  could  be  substantial  and  could
cause irreparable harm to our reputation or otherwise have a material adverse effect on our business, financial condition,
and results of operations.

We  are  subject  to  laws  governing  data  protection  in  the  different  jurisdictions  in  which  we  operate.  The
implementation of such data protection regimes is complex, and should we fail to fully comply, we may be subject to
penalties that may have an adverse effect on our business, financial condition, and results of operations.

Many  national,  international,  and  state  laws  govern  the  privacy  and  security  of  health  information  and  other
personal and private information. They often differ from each other in significant ways. For instance, the EU has adopted a
comprehensive data protection law called the EU General Data Protection Regulation  that took effect in May 2018. The
UK has, following its exit from the EU, substantially adopted the EU General Data Protection Regulation into its domestic
law through the UK General Data Protection Regulation (collectively with the EU General Data Protection Regulation, and
related EU and UK e-Privacy laws, the “GDPR”).  The GDPR, together with the national legislation of the UK (including
the Data Protection Act 2018) and EU member states governing the processing of personal data, impose strict obligations
and restrictions on the ability to collect, use, analyze and transfer personal information, including health data from clinical
trials and adverse event reporting.

GDPR  obligations  applicable  to  us  may  include,  in  many  circumstances,  obtaining  the  (opt-in)  consent  of  the
individuals  to  whom  the  personal  data  relates;  providing  GDPR-prescribed  data  processing  notices  to  individuals;
complying with restrictions regarding the transfer of personal data out of the EU or the UK (as applicable) (including to the
US);  implementing  and  maintaining  data  protection  policies  and  procedures;  restrictions  regarding  the  use  of  certain
innovative  technologies;  providing  data  security  breach  notifications  to  supervisory  authorities  and  affected  individuals
under tight timescales; and implementing security and confidentiality measures. Supervisory authorities in the different EU
member  states  and  the  UK  may  interpret  the  GDPR  and  national  laws  differently  and  impose  additional  requirements.
Guidance  on  implementation  and  compliance  practices  are  often  updated  or  otherwise  revised.  All  of  this  adds  to  the
complexity of processing personal information and remaining compliant with the GDPR.

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The GDPR allows EU and UK supervisory authorities to impose penalties for non-compliance of up to the greater
of EUR 20.0 million and 4% of annual worldwide gross revenue of the corporate group in question. (There are similar caps
in GBP under the UK GDPR.). Supervisory authorities in the EU and UK may potentially levy such fines directly upon on
the non-compliant entity and/or on the parent company of the non-compliant entity. Supervisory authorities also possess
other wide-ranging powers, including conducting unannounced inspections of our facilities and system (so-called “dawn
raids”), and issuing “stop processing” orders to us. Separate from regulatory enforcement actions, individuals may bring
private actions (including potentially group or representative actions) against us. There is no statutory cap in the GDPR on
the amount of compensation or the damages which individuals may recover.

Overall, the significant costs of GDPR compliance, risk of regulatory enforcement actions and private litigation
under, and other burdens imposed by the GDPR as well as under other regulatory schemes throughout the world related to
privacy  and  security  of  health  information  and  other  personal  and  private  data  could  have  an  adverse  impact  on  our
business, financial condition, and results of operations.

Product liability lawsuits could cause us to incur substantial liabilities and to limit commercialization of our

therapies.

We face an inherent risk of product liability related to the testing of our product candidates in human clinical trials
and in connection with product sales. If we cannot successfully defend ourselves against claims that our product candidates
or  products  or  the  procedures  used  to  administer  them  to  patients  caused  injuries,  we  will  incur  substantial  liabilities.
Regardless of merit or eventual outcome, liability claims may result in:

● decreased demand for any product candidates or products that we develop or sell;
● injury to our reputation and significant negative media attention;
● negative publicity or public opinion surrounding gene therapy;
● withdrawal of clinical trial participants or sites, or discontinuation of development programs;
● significant costs to defend the related litigation;
● substantial monetary awards to trial participants or patients;
● loss of revenue;
● initiation of investigations, and enforcement actions by regulators; and product recalls, withdrawals, revocation of

approvals, or labeling, marketing, or promotional restrictions;

● reduced resources of our management to pursue our business strategy; and
● the inability to further develop or commercialize any products that we develop.

Depending upon the country where the clinical trial is conducted, we currently hold coverages ranging from EUR
500,000 to EUR 10,000,000 per occurrence. Such coverage may not be adequate to cover all liabilities that we may incur.
We  may  need  to  increase  our  insurance  coverage  as  we  expand  our  clinical  trials.  In  addition,  insurance  coverage  is
increasingly expensive. We may not be able to maintain insurance coverage at a reasonable cost or in an amount adequate
to satisfy any liability that may arise. In the event insurance coverage is insufficient to cover liabilities that we may incur, it
could have a material adverse effect on our business, financial condition, and results of operations.

Healthcare  legislative  and  regulatory  reform  measures  may  have  a  material  adverse  effect  on  our  financial

operations.

Our industry is highly regulated and changes in law may adversely impact our business, operations, or financial
results. The Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act,
or  the  PPACA,  is  a  sweeping  measure  intended  to,  among  other  things,  expand  healthcare  coverage  within  the  U.S.,
primarily  through  the  imposition  of  health  insurance  mandates  on  employers  and  individuals  and  expansion  of  the
Medicaid program. Several provisions of the law may affect us and increase certain of our costs.

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In  addition,  other  legislative  changes  have  been  adopted  since  the  PPACA  was  enacted.  These  changes  include
aggregate reductions in Medicare payments to providers of 2% per fiscal year, which went into effect on April 1, 2013,
Congress subsequently has extended the period over which these reductions are in effect. While President Biden previously
signed  legislation  temporarily  to  eliminate  this  reduction  through  the  end  of  2021,  a  1%  payment  adjustment  was
implemented from April 1 – June 30, 2022, and a 2% payment adjustment took effect beginning July 1, 2022. In January
2013,  President  Obama  signed  into  law  the  American  Taxpayer  Relief  Act  of  2012,  which,  among  other  things,  further
reduced Medicare payments to several types of providers and increased the statute of limitations period for the government
to recover overpayments to providers from three to five years. These laws may result in additional reductions in Medicare
and other healthcare funding, which could have a material adverse effect on our customers and, accordingly, our financial
operations.

We anticipate that the PPACA, as well as other healthcare reform measures that may be adopted in the future, may
result  in  more  rigorous  coverage  criteria  and  additional  downward  pressure  on  pricing  and  the  reimbursement  our
customers  may  receive  for  our  products,  and  increased  manufacturer  rebates.  Further,  there  have  been,  and  there  may
continue to be, judicial and Congressional challenges to certain aspects of the PPACA. For example, the U.S. Tax Cuts and
Jobs  Act  of  2017  includes  a  provision  repealing,  effective  January  1,  2019,  the  tax-based  shared  responsibility  payment
imposed by the Affordable Care Act on certain individuals who fail to maintain qualifying health coverage for all or part of
a  year  that  is  commonly  referred  to  as  the  “individual  mandate”.  Additional  legislative  and  regulatory  changes  to  the
PPACA, its implementing regulations and guidance and its policies, remain possible in the 118th U.S. Congress and under
the Biden Administration. However, it remains unclear how any new legislation or regulation might affect the prices we
may obtain for any of our product candidates for which regulatory approval is obtained. Any reduction in reimbursement
from  Medicare  and  other  government  programs  may  result  in  a  similar  reduction  in  payments  from  private  payers.  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.

Our  future  growth  may  depend,  in  part,  on  our  ability  to  penetrate  markets  outside  of  the  U.S.  and  Europe

where we would be subject to additional regulatory burdens and other risks and uncertainties.

Our future profitability may depend, in part, on our ability to commercialize current or future drug candidates in
foreign markets for which we may rely on collaborations with third parties. We are not permitted to market or promote any
of  our  drug  candidates  before  we  receive  regulatory  approval  from  the  applicable  regulatory  authority  in  that  foreign
market. To obtain separate regulatory approval in many other jurisdictions  we  must  comply  with  numerous  and  varying
regulatory  requirements  of  such  jurisdictions  regarding  safety  and  efficacy  and  governing,  among  other  things,  clinical
trials, manufacturing, commercial sales, pricing and distribution of our drug candidates, and we cannot predict success in
these jurisdictions.

Our internal computer systems, or those of our collaborators or other contractors or consultants, may fail or

suffer security breaches, which could result in a material disruption of our product development programs.

Our  internal  computer  systems  and  those  of  our  current  and  any  future  collaborators  and  other  contractors  or
consultants  are  vulnerable  to  damage  from  computer  viruses,  unauthorized  access,  natural  disasters,  terrorism,  war  and
telecommunication and electrical failures. The size and complexity of our information technology systems, and those of
our collaborators, contractors and consultants, and the large amounts of confidential information stored on those systems,
make such systems vulnerable to service interruptions or to security breaches from inadvertent or intentional actions by our
employees, third-party vendors and/or business partners, or from cyber-attacks by malicious third parties. Cyber-attacks are
increasing in their frequency, sophistication, and intensity, and have become increasingly difficult to detect. Cyber-attacks
could  include  the  deployment  of  harmful  malware,  ransomware,  denial-of-service  attacks,  social  engineering,  and  other
means to affect service reliability and threaten the confidentiality, integrity, and availability of information. Cyber-attacks
also could include phishing attempts or e-mail fraud to cause payments or information to be transmitted to an unintended
recipient. Our hybrid remote work policy may increase our vulnerability to such risks.

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While  we  have  experienced  and  addressed  system  failures,  cyber-attacks,  and  security  breaches  in  the  past,  we
have not experienced a system failure, accident, cyber-attack, or security breach that has resulted in a material interruption
in our operations to date. In the future, such events could result in a material disruption of our development programs and
our business operations, whether due to a loss of our trade secrets, data, or other proprietary information or other similar
disruptions.  Additionally,  any  such  event  that  leads  to  unauthorized  access,  use  or  disclosure  of  personal  information,
including  personal  information  regarding  our  patients  or  employees,  could  harm  our  reputation,  cause  us  not  to  comply
with federal and/or state breach notification laws and foreign law equivalents and otherwise subject us to liability under
laws  and  regulations  that  protect  the  privacy  and  security  of  personal  information.  Security  breaches  and  other
inappropriate access can be difficult to detect, and any delay in identifying them may lead to increased harm of the type
described above. We may need to devote significant resources to protect against security breaches or to address problems
caused  by  a  cyber-attack  or  security  breach.  While  we  have  implemented  security  measures  to  protect  our  information
technology systems and infrastructure, there can be no assurance that such measures will prevent service interruptions or
security  breaches  that  could  adversely  affect  our  business  and  the  further  development  and  commercialization  of  our
product and product candidates could be delayed.

See  Part  I,  Item  1C,  Cybersecurity,  in  this  Annual  Report  on  Form  10-K  for  more  information  regarding  our

cybersecurity risk management, strategy and governance.

Climate change as well as corporate responsibility initiatives, including environmental, social and governance

(ESG) matters, may impose additional costs on our business and expose us to new risks.

Greenhouse  gases  may  have  an  adverse  effect  on  global  temperatures,  weather  patterns,  and  the  frequency  and
severity of extreme weather and natural disasters. Such events could have a negative effect on our business. Concern over
the impact of climate change may result in new or additional legislative and regulatory requirements to reduce or mitigate
the effects of climate change on the environment, which could result in increases in taxes, transportation costs and utilities,
among  other  expenses.  Moreover,  natural  disasters  and  extreme  weather  conditions  may  impact  the  productivity  of  our
facilities, the ability of the patients in our clinical trials to maintain compliance with trial protocols or access clinical trial
sites, the operation of our supply chain, or consumer buying patterns. The occurrence of any of these events could have a
material adverse effect on our business.

ESG and sustainability initiatives continue to attract political and social attention have resulted in both existing
and  pending  international  agreements  and  national,  regional,  and  local  legislation,  regulatory  measures,  reporting
obligations and policy changes. There is increasing societal pressure in some of the countries in which we operate to limit
greenhouse gas emissions as well as other global initiatives focused on climate change. These agreements and measures,
including  the  Paris  Climate  Accord,  may  require,  or  could  result  in  future  legislation,  regulatory  measures  or  policy
changes that would require operational changes, taxes, or purchases of emission credits to reduce emission of greenhouse
gases  from  our  operations,  which  may  require  the  that  we  dedicate  additional  resources  toward  compliance  with  these
measures and result in substantial capital expenditures. Furthermore, increasing attention on ESG matters has resulted in
governmental investigations, and public and private litigation, which could increase our costs or otherwise adversely affect
our business or results of operations.

In addition, organizations that provide information to investors on corporate governance and related matters have
developed ratings processes for evaluating companies and investment funds based on ESG and sustainability metrics. Such
ratings  are  used  by  investors  to  inform  their  investment  and  voting  decisions.  Unfavorable  ESG  ratings  may  lead  to
increased negative investor sentiment toward us, which could have a negative impact on the price of our securities and our
access  to  and  costs  of  capital.  In  addition,  investors,  particularly  institutional  investors,  use  these  scores  to  benchmark
companies  against  their  peers  and  if  a  company  is  perceived  as  lagging,  take  actions  to  hold  these  companies  and  their
boards  of  directors  accountable.  Board  diversity  is  an  ESG  topic  that  is,  in  particular,  receiving  heightened  attention  by
investors,  stockholders,  lawmakers  and  listing  exchanges.  Certain  states  have  passed  laws  requiring  companies  to  meet
certain gender and ethnic diversity requirements on their boards of directors. We may face reputational damage in the event
our  corporate  responsibility  initiatives  or  objectives,  do  not  meet  the  standards  set  by  our  investors,  stockholders,
lawmakers, listing exchanges or other constituencies, or if we are unable to achieve an acceptable ESG or sustainability
rating from third-party rating services.

The  effects  of  climate  change  or  any  or  all  of  these  ESG  and  sustainability  initiatives  may  result  in  significant
operational changes and expenditures, reduced demand for our products, cause us reputational harm, and could materially
adversely affect our business, financial condition, and results of operations.

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Risks Related to Employee Matters and Managing Our Growth

Our future success depends on our ability to retain key executives, technical staff, and other employees and to

attract, retain and motivate qualified personnel.

Our future growth and success will depend in large part on our continued ability to attract, retain, manage, and
motivate our employees. The loss of the services of any member of our senior management or the inability to hire or retain
experienced management personnel could adversely affect our ability to execute our business plan and harm our operating
results.  We  are  highly  dependent  on  hiring,  training,  retaining,  and  motivating  key  personnel  to  lead  our  research  and
development, clinical operations, and manufacturing efforts. Although we have entered into employment agreements with
our key personnel, each of them may terminate their employment on short notice. We do not maintain key person insurance
for any of our senior management or employees.

The  loss  of  the  services  of  our  key  employees  could  impede  the  achievement  of  our  research  and  development
objectives  and  seriously  harm  our  ability  to  successfully  implement  our  business  strategy.  Furthermore,  replacing  senior
management  and  key  employees  may  be  difficult  and  may  take  an  extended  period  because  of  the  limited  number  of
individuals  in  our  industry  with  the  breadth  and  depth  of  skills  and  experience  required  to  successfully  develop  gene
therapy products.

The  competition  for  qualified  personnel  in  the  pharmaceutical  field  is  intense,  and  there  is  a  limited  pool  of
qualified potential employees to recruit. Due to this intense competition, we may be unable to continue to attract and retain
the qualified personnel necessary for the development of our business or to recruit suitable replacement personnel. If we
are unable to continue to attract and retain high quality personnel, our ability to pursue our business may be harmed and
our growth strategy may be limited.

Additionally, we are reliant on our employees, contractors, consultants, vendors, and other parties with whom we
have relationships to behave ethically and within the requirements of the law. The failure of any employee or other such
third parties to act within the bounds of the applicable laws, regulations, agreements, codes and other requirements, or any
misconduct or illegal actions or omissions by such persons, could materially damage our business.

Actions that we have taken to restructure our business in alignment with our strategic priorities may not be as

effective as anticipated, may not result in cost savings to us and could disrupt our business.

In  October  2023,  we  commenced  the  Reorganization  to  reprioritize  our  portfolio  of  development  candidates,
conserve financial resources and better align our workforce with current business needs. We may encounter challenges in
the execution of these efforts, and these challenges could impact our financial results.

Although we believe that these actions will reduce operating costs, we cannot guarantee that the Reorganization
will achieve or sustain the targeted benefits, or that the benefits, even if achieved, will be adequate to meet our long-term
expectations. As a result of the Reorganization, we will incur additional costs in the near term, including cash expenditures
for employee transition, notice period and severance payments, employee benefits, and related facilitation costs. Additional
risks associated with the continuing impact of the Reorganization include employee attrition beyond our intended reduction
in force and adverse effects on employee morale (which may also be further exacerbated by actual or perceived declining
value of equity awards), diversion of management attention, adverse effects to our reputation as an employer (which could
make it more difficult for us to hire and retain new employees in the future), potential understaffing and potential failure or
delays  to  meet  development  targets  due  to  the  loss  of  qualified  employees  or  other  operational  challenges.  If  we  do  not
realize the expected benefits of our restructuring efforts on a timely basis or at all, our business, results of operations and
financial condition could be adversely affected.

The price of our ordinary shares has been and may in the future be volatile and fluctuate substantially.

Risks Related to Our Ordinary Shares

Our share price has been and may in the future be volatile. From the start of trading of our ordinary shares on the
Nasdaq Global Select Market on February 4, 2014 through February 23, 2024 the sale price of our ordinary shares ranged
from a high of $82.49 to a low of $4.72. The closing price on February 23, 2024, was $6.32 per ordinary share.

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In recent years, the stock market in general and the market for shares of smaller biopharmaceutical companies in
particular have experienced significant price and volume fluctuations that have often been unrelated or disproportionate to
changes in the operating performance of the companies whose stock is experiencing those price and volume fluctuations.
The market price for our ordinary shares may be influenced by many factors, including:

● the success of competitive products or technologies;
● results of clinical trials of our product candidates or those of our competitors;
● public perception and market reaction to our interim data from clinical trials;
● public perception of gene therapy;
● interactions with the FDA on the design of our clinical trials and regulatory endpoints;
● regulatory delays and greater government regulation of potential products due to adverse events;
● regulatory or legal developments in the EU, the U.S., and other countries;
● developments or disputes concerning patent applications, issued patents or other proprietary rights;
● the recruitment or departure of key personnel;
● changes to our business, including pipeline reprioritizations and restructurings;
● the level of expenses related to any of our product candidates or clinical development programs;
● the results of our efforts to discover, develop, acquire or in-license additional product candidates or products;
● actual or anticipated changes in estimates as to financial results, development timelines or recommendations by

securities analysts;

● variations in our financial results or those of companies that are perceived to be similar to us;
● changes in the structure of healthcare payment systems;
● market conditions in the pharmaceutical and biotechnology sectors;
● mergers, acquisitions, licensing, and collaboration activity among our peer companies in the pharmaceutical and

biotechnology sectors;

● general economic, industry and market conditions; and
● the other factors described in this “Risk Factors” section.

Following periods of such volatility in the market price of a company’s securities, securities class action litigation
has often been brought against that company. Because of the potential volatility of our stock price, we may become the
target of securities litigation in the future. In addition, notwithstanding protective provisions in our articles of association
and  available  to  us  under  Dutch  corporate  law,  market  volatility  may  lead  to  increased  shareholder  activism  if  we
experience a market valuation that activist investors believe is not reflective of the intrinsic value of our ordinary shares.
Activist campaigns that contest or conflict with our strategic direction or seek changes in the composition of our board of
directors could have an adverse effect on our operating results and financial condition. Securities litigation or shareholder
activism could result in substantial costs and divert management’s attention and resources from our business.

Our directors, executive officers, and major shareholders, if they choose to act together, will continue to have a

significant degree of control with respect to matters submitted to shareholders for approval.

Our directors, executive officers and major shareholders holding more than 5% of our outstanding ordinary shares,
in the aggregate, beneficially own approximately 26.6% of our issued shares (including such shares to be issued in relation
to  exercisable  options  to  purchase  ordinary  shares)  as  of  December  31,  2023.  As  a  result,  if  these  shareholders  were  to
choose to act together, they may be able, as a practical matter, to control many matters submitted to our shareholders for
approval, as well as our management and affairs. For example, these persons, if they choose to act together, could control
the election of the board of directors and the approval of any merger, consolidation, or sale of all or substantially all our
assets. These shareholders may have interests that differ from those of other of our shareholders and conflicts of interest
may arise.

Provisions of our articles of association or Dutch corporate law might deter acquisition bids for us that might

be considered favorable and prevent or frustrate any attempt to replace our board.

Under  Dutch  law,  various  protective  measures  are  possible  and  permissible  within  the  boundaries  set  by  Dutch
statutory  and  case  law.  Certain  provisions  of  our  articles  of  association  may  make  it  more  difficult  for  a  third  party  to
acquire control of us or effect a change in our board. These provisions include:

● the staggered three-year terms of our non-executive directors as a result of which only approximately one-third of

our non-executive directors may be subject to election or re-election in any one year;

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● a provision that our directors may only be dismissed or suspected at a general meeting of shareholders by a two-

thirds majority of votes cast representing more than half of our outstanding ordinary shares;

● a  provision  that  our  executive  directors  may  only  be  appointed  upon  binding  nomination  of  the  non-executive
directors, which can only be overruled by the general meeting of shareholders with a two-thirds majority of votes
cast representing at least 50% of our outstanding ordinary shares; and

● a requirement that certain matters, including an amendment of our articles of association, may only be brought to

our shareholders for a vote upon a proposal by our board.

Moreover, according to Dutch corporate law, our board can invoke a cooling-off period of up to 250 days in the
event of an unsolicited takeover bid or certain shareholder activism. During a cooling-off period, our general meeting of
shareholders  would  not  be  able  to  dismiss,  suspend  or  appoint  directors  (or  amend  the  provisions  in  our  articles  of
association dealing with those matters) except at the proposal of our board.

We do not expect to pay dividends in the foreseeable future.

We  have  not  paid  any  dividends  since  our  incorporation.  Even  if  future  operations  lead  to  significant  levels  of
distributable profits, we currently intend those earnings, if any, will be reinvested in our business and that dividends will
not be paid until we have an established revenue stream to support continuing dividends. Accordingly, shareholders cannot
rely  on  dividend  income  from  our  ordinary  shares  and  any  returns  on  an  investment  in  our  ordinary  shares  will  likely
depend entirely upon any future appreciation in the price of our ordinary shares.

If we fail to maintain an effective system of internal controls, we may be unable to accurately report our results
of operations or prevent fraud or fail to meet our reporting obligations, and investor confidence and the market price of
our ordinary shares may be materially and adversely affected.

If we fail to maintain the adequacy of our internal control over financial reporting, we may not be able to conclude
on an ongoing basis that we have effective internal control over financial reporting. If we fail to maintain effective internal
control over financial reporting, we could experience material misstatements in our financial statements and fail to meet
our reporting obligations, which would likely cause investors to lose confidence in our reported financial information. This
could in turn limit our access to capital markets, harm our results of operations, and lead to a decline in the trading price of
our ordinary shares. Additionally, ineffective internal control over financial reporting could expose us to increased risk of
fraud or misuse of corporate assets and subject us to potential delisting from The Nasdaq Global Select Market, regulatory
investigations and civil or criminal sanctions. Our reporting and compliance obligations may place a significant strain on
our management, operational and financial resources, and systems for the foreseeable future.

We have in the past qualified and in the future may qualify as a passive foreign investment company, which

may result in adverse U.S. federal income tax consequences to U.S. holders.

A  corporation  organized  outside  the  U.S.  generally  will  be  classified  as  a  passive  foreign  investment  company
(“PFIC”)  for  U.S.  federal  income  tax  purposes  in  any  taxable  year  in  which  at  least  75%  of  its  gross  income  is  passive
income or on average at least 50% of the gross value of its assets is attributable to assets that produce passive income or are
held to produce passive income. Passive income for this purpose generally includes dividends, interest, royalties, rents and
gains  from  commodities  and  securities  transactions.  Based  on  our  average  value  of  our  gross  assets,  our  cash  and  cash
equivalents as well as the price of our ordinary shares, we expect to be classified as a PFIC for U.S. federal income tax for
2023.  Our  status  in  any  taxable  year  will  depend  on  our  assets  and  activities  in  each  year,  and  because  this  is  a  factual
determination made annually after the end of each taxable year, there can be no assurance that we will continue to qualify
as  a  PFIC  in  future  taxable  years.  The  market  value  of  our  assets  may  be  determined  in  large  part  by  reference  to  the
market price of our ordinary shares, which is likely to fluctuate, and may fluctuate considerably given that market prices of
biotechnology companies have been especially volatile. If we were considered a PFIC for the current taxable year or any
future  taxable  year,  a  U.S.  holder  would  be  required  to  file  annual  information  returns  for  such  year,  whether  the  U.S.
holder  disposed  of  any  ordinary  shares  or  received  any  distributions  in  respect  of  ordinary  shares  during  such  year.  In
certain circumstances a U.S. holder may be able to make certain tax elections that would lessen the adverse impact of PFIC
status;  however,  to  make  such  elections  the  U.S.  holder  will  usually  have  to  have  been  provided  information  about  the
company by us, and we do not intend to provide such information.

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The  U.S.  federal  income  tax  rules  relating  to  PFICs  are  complex.  U.S.  holders  are  urged  to  consult  their  tax
advisors  with  respect  to  the  purchase,  ownership  and  disposition  of  our  shares,  the  possible  implications  to  them  of  us
being  treated  as  a  PFIC  (including  the  availability  of  applicable  election,  whether  making  any  such  election  would  be
advisable in their particular circumstances) as well as the federal, state, local and foreign tax considerations applicable to
such holders in connection with the purchase, ownership, and disposition of our shares.

Any U.S. or other foreign judgments may be difficult to enforce against us in the Netherlands.

Although we report as a U.S. domestic filer for SEC reporting purposes, we are organized and existing under the
laws of the Netherlands. Some of the members of our board and senior management reside outside the U.S. In addition, a
significant portion of our assets are located outside the U.S. As a result, it may not be possible for shareholders to effect
service of process within the U.S. upon such persons or to enforce judgments against them or us in U.S. courts, including
judgments predicated upon the civil liability provisions of the federal securities laws of the U.S. In addition, it is not clear
whether a Dutch court would impose civil liability on us or any of our Board members in an original action based solely
upon the federal securities laws of the U.S. brought in a court of competent jurisdiction in the Netherlands.

The  U.S.  and  the  Netherlands  currently  do  not  have  a  treaty  providing  for  the  reciprocal  recognition  and
enforcement of judgments, other than arbitration awards, in civil and commercial matters. Consequently, a final judgment
for  payment  given  by  a  court  in  the  U.S.,  whether  or  not  predicated  solely  upon  U.S.  securities  laws,  would  not
automatically  be  recognized  or  enforceable  in  the  Netherlands.  To  obtain  a  judgment  which  is  enforceable  in  the
Netherlands, the party in whose favor a final and conclusive judgment of the U.S. court has been rendered will be required
to file its claim with a court of competent jurisdiction in the Netherlands. Such party may submit to the Dutch court the
final judgment rendered by the U.S. court. If and to the extent that the Dutch court finds that the jurisdiction of the U.S.
court has been based on grounds which are internationally acceptable and that proper legal procedures have been observed,
the Dutch court will, in principle, give binding effect to the judgment of the U.S. court, unless such judgment contravenes
principles  of  public  policy  of  the  Netherlands.  Dutch  courts  may  deny  the  recognition  and  enforcement  of  punitive
damages  or  other  awards.  Moreover,  a  Dutch  court  may  reduce  the  amount  of  damages  granted  by  a  U.S.  court  and
recognize  damages  only  to  the  extent  that  they  are  necessary  to  compensate  actual  losses  or  damages.  Enforcement  and
recognition  of  judgments  of  U.S.  courts  in  the  Netherlands  are  solely  governed  by  the  provisions  of  the  Dutch  Civil
Procedure Code.

Therefore U.S. shareholders may not be able to enforce against us or our board members or senior management
who are residents of the Netherlands or countries other than the U.S. any judgments obtained in U.S. courts in civil and
commercial matters, including judgments under the U.S. federal securities laws.

The rights and responsibilities of our shareholders and directors are governed by Dutch law and differ in some

important respects from the rights and responsibilities of shareholders under U.S. law.

We are a public company (naamloze vennootschap) organized under the laws of the Netherlands and our corporate
affairs are governed by our articles of association and by the laws governing companies incorporated in the Netherlands.
The rights of our shareholders and the responsibilities of members of our board under Dutch law are different than under
the laws of some U.S. jurisdictions. In the performance of their duties, our board members are required by Dutch law to
consider  the  interests  of  uniQure,  its  shareholders,  its  employees,  and  other  stakeholders  and  not  only  those  of  our
shareholders  (as  would  be  required  under  the  law  of  most  U.S.  jurisdictions).  As  a  result  of  these  considerations,  it  is
possible  that  some  of  these  parties  will  have  interests  that  are  different  from,  or  in  addition  to,  your  interests  as  a
shareholder,  and  our  directors  may  take  actions  that  would  be  different  than  those  that  would  be  taken  by  a  company
organized under the law of some U.S. jurisdictions.

In  addition,  in  accordance  with  our  articles  of  association,  approval  of  our  shareholders  is  required  before  our
board of directors can authorize the issuance of our ordinary shares in an equity financing. Our shareholders’ reluctance to
approve such further issuances of ordinary shares could adversely affect our ability to raise capital and fund development
programs and continued operations. There can be no assurance that Dutch law will not change in the future or that it will
serve to protect investors in a similar fashion afforded under corporate law principles in the U.S., which could adversely
affect the rights of investors.

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We  may  be  adversely  affected  by  unstable  market  and  economic  conditions,  such  as  inflation,  which  may

negatively impact our business, financial condition and stock price.

Market conditions such as inflation, volatile energy costs, geopolitical issues, war, unstable global credit markets
and  financial  conditions  could  lead  to  periods  of  significant  economic  instability,  diminished  liquidity  and  credit
availability,  diminished  expectations  for  the  global  economy  and  expectations  of  slower  global  economic  growth  going
forward.  Our  business  and  operations  may  be  adversely  affected  by  such  instability,  including  any  such  inflationary
fluctuations, economic downturns, volatile business environments and continued unstable or unpredictable economic and
market conditions. Inflation in particular has the potential to adversely affect our liquidity, business, financial condition,
and results of operations by increasing our overall cost structure. The existence of inflation in the economy has resulted in,
and may continue to result in, higher interest rates and capital costs, shipping costs, supply shortages, increased costs of
labor, weakening exchange rates and other similar effects. As a result of inflation, we have experienced, and may continue
to experience, cost increases across our business. Although we may take measures to mitigate the impact of this inflation, if
these measures are not effective our business, financial condition, results of operations and liquidity could be materially
adversely  affected.  Even  if  such  measures  are  effective,  there  could  be  a  difference  between  the  timing  of  when  these
beneficial actions impact our results of operations and when cost inflation is incurred.

Any such volatility and disruptions may have adverse consequences on us or the third parties on whom we rely. If
economic and market conditions deteriorate or do not improve, it may make any future financing efforts more difficult to
complete, more costly and more dilutive to our shareholders. Additionally, due to our volatile industry and industry-wide
declining stock values, investors may seek to pursue non-biotech investments with steadier returns. Failure to secure any
necessary  financing  in  a  timely  manner  or  on  favorable  terms  could  have  a  material  adverse  effect  on  our  operations,
financial condition or stock price or could require us to delay or abandon development or commercialization plans.

If  securities  or  industry  analysts  cease  to  publish  or  publish  inaccurate  or  unfavorable  research  about  our

business, our share price and trading volume could decline.

The trading market for our common shares depends in part on the research and reports that securities or industry
analysts publish about us or our business. If one or more of the analysts who cover us downgrades our common shares or
publishes  inaccurate  or  unfavorable  research  about  our  business,  our  share  price  may  decline.  If  one  or  more  of  these
analysts ceases coverage of our company or fails to publish reports on us regularly, demand for our shares could decrease,
which might cause our share price and trading volume to decline.

If we do not achieve our projected development and financial goals in the timeframes we announce and expect,

the commercialization of our product candidates may be delayed and, as a result, our stock price may decline.

We  estimate  the  timing  of  the  accomplishment  of  various  scientific,  clinical,  regulatory,  and  other  product
development goals, along with financial and other business-related milestones. From time to time, we publicly announce
the expected timing of some of these milestones along with guidance as to our cash runway. These milestones may include
the commencement or completion of scientific studies, clinical trials, the submission of regulatory filings and interactions
with  regulatory  authorities,  and  approval  timelines  for  commercial  sales.  All  these  milestones  are  based  on  a  variety  of
assumptions that may prove to be untrue. The timing of our actual achievement of these milestones can vary dramatically
compared to our estimates, in many cases for reasons beyond our control. If we do not meet these milestones, including
those that are publicly announced, the development and commercialization of our products may be delayed, our business
could suffer reputational harm and, as a result, our stock price may decline.

.

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Item 1B.  Unresolved Staff Comments.

None.

Item 1C.  Cybersecurity.

Cybersecurity Risk Management and Strategy

We recognize the importance of assessing, identifying, and managing material risks associated with cybersecurity
threats,  as  such  term  is  defined  in  Item  106(a)  of  Regulation  S-K.  These  risks  include,  among  other  things,  operational
risks, the risk of intellectual property theft, fraud, harm to employees or third parties with which we conduct business and
violation of data privacy or security laws.

Identifying and assessing cybersecurity risk is integrated into our overall risk management systems and processes.
Cybersecurity risks related to our business are identified and addressed through a multi-faceted approach that consists of
third-party assessments, testing of our information systems and information technology security. To defend against, detect
and respond to cybersecurity incidents, we, among other things: have enabled regular monitoring of our environment by a
combination  of  external  partners  and  internal  security  tools,  conduct  employee  trainings,  monitor  emerging  laws  and
regulations related to data protection and information security and implement appropriate changes.

Consistent with our cybersecurity risk management policies and controls, we have prepared an incident response
plan with several components, including: (i) engagement of a third party security operations center for regular vulnerability
scanning and technical monitoring of our systems, (ii) detection and analysis of cybersecurity incidents that present risk of
unauthorized  access  to  company  assets,  including  the  escalation  and  triaging  of  incidents  that  present  acute  risks  to  our
business,  (iii)  containment,  eradication  and  data  recovery,  and  (iv)  post-incident  analysis.  Such  incident  responses  are
overseen by leaders from our information technology, finance, legal and compliance teams.

Cybersecurity events and data incidents are evaluated, assessed based on severity and prioritized for response and
remediation. Under our incident response plan and related policies, incidents are evaluated to determine materiality as well
as  operational  and  business  impact  and  reviewed  for  privacy  impact.  Our  team  of  cybersecurity  professionals  then
collaborate  with  technical  and  business  stakeholders  to  further  analyze  the  risk  to  the  company,  and  form  detection,
mitigation and remediation strategies. As part of the above processes, we regularly engage external consultants to assess
our internal cybersecurity programs and compliance with applicable practices and standards.

Cybersecurity Governance

Cybersecurity  is  an  important  part  of  our  risk  management  processes  and  an  area  of  focus  for  our  board  of
directors  and  management  team.  Our  board  of  directors  has  delegated  responsibility  to  the  Audit  Committee  for  the
oversight  of  risks  from  cybersecurity  threats.  Members  of  the  Audit  Committee  receive  regular  updates  from  senior
management,  including  leaders  from  our  information  technology,  legal  and  compliance  teams  regarding  matters  of
cybersecurity.  This  includes  existing  and  new  cybersecurity  risks,  information  on  how  management  is  addressing  and/or
mitigating those risks, cybersecurity incidents (if any) and status on key information security initiatives.

Despite our cybersecurity efforts, we may not be successful in preventing or mitigating a cybersecurity incident
that could have a material adverse effect on our business. For a discussion of cybersecurity risks applicable to us, see Part I,
Item 1A, Risk Factors, under the heading “Our internal computer systems, or those of our collaborators or other contractors
or consultants, may fail or suffer security breaches, which could result in a material disruption of our product development
programs” in this Annual Report on Form 10-K.

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Item 2.  Properties.

We  operate  an  approximately  100,000  square  foot  GMP  qualified  manufacturing  facility  that  we  lease  in
Lexington, Massachusetts, U.S. The lease for the Lexington manufacturing facility, as amended to date, terminates in June
2029 and may be renewed for two subsequent five-year terms. In addition, we also operate approximately 12,000 square
feet  of  multi-use  office  space  in  Lexington,  Massachusetts,  which  is  subject  to  a  lease  that  expires  in  2030  and  may  be
renewed for one subsequent five-year term.

We operate approximately 111,000 square feet (seven floors) of multi-use space in Amsterdam, The Netherlands,
which  is  subject  to  a  lease  that,  as  amended  to  date,  terminates  in  2032  with  an  option  to  extend  the  lease  in  five-year
increments. To date we have entered into subleases with respect to two of the seven floors in the Amsterdam facility. We
sublease an additional approximately 12,000 square feet of space in the Amsterdam facility, which is subject to a lease that
expires in October 2028.

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

available in the future on commercially reasonable terms.

Item 3.  Legal Proceedings.

None.

Item 4.  Mine Safety Disclosures.

Not applicable.

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Part II

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

Our  ordinary  shares  are  listed  on  the  Nasdaq  Global  Select  Market  under  the  symbol  “QURE”.  We  have  never
paid any cash dividends on our ordinary shares, and we do not anticipate paying cash dividends in the foreseeable future.
We anticipate that we will retain all earnings, if any, to support operations and to finance the growth and development of
our business for the foreseeable future.

Unregistered Sales of Equity Securities

During the period covered by this Annual Report on Form 10-K, we have not issued any securities that were not

registered under the Securities Act of 1933, as amended (the “Securities Act”).

Issuer Share Repurchases

We did not make any purchases of our ordinary shares during the period covered by this Annual Report on Form

10-K.

Holders

As  of  February  23,  2024,  there  were  approximately  six  holders  of  record  of  our  ordinary  shares.  The  actual
number of shareholders is greater than this number of record holders, and includes shareholders who are beneficial owners,
but whose shares are held in street name by brokers and other nominees. This number of holders of record also does not
include shareholders whose shares may be held in trust by other entities.

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Share Performance Graph

The following graph compares the performance of our ordinary shares (“QURE”) for the periods indicated with
the performance of the NASDAQ Composite Index (“˄IXIC”) and the Nasdaq biotechnology index (“˄NBI”). This graph
assumes an investment of $100 after market close on December 31, 2018 in each of our ordinary shares, the NASDAQ
Composite  Index,  and  the  NASDAQ  Biotechnology  Index.  Pursuant  to  the  applicable  SEC  rules,  all  values  assume
reinvestment of the full amount of all dividends; however, no dividends have been declared on our ordinary shares to date.
The performance of our ordinary shares shown on the graph below is not necessarily indicative of the future performance
of our ordinary shares.

This graph and related information is not “soliciting material,” is not deemed “filed” with the SEC and, except to
the extent incorporated by reference, is not to be incorporated by reference into any of our filings under the Securities Act,
or  the  U.S.  Securities  Exchange  Act  of  1934,  as  amended  (the  “Exchange  Act”),  whether  made  before  or  after  the  date
hereof and irrespective of any general incorporation language in any such filing.

Item 6.  Reserved

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

The  following  Management’s  Discussion  and  Analysis  of  Financial  Condition  and  Results  of  Operations
(“MD&A”)  is  intended  to  help  the  reader  understand  our  results  of  operations  and  financial  condition.  This  MD&A  is
provided as a supplement to, and should be read in conjunction with, our audited consolidated financial statements and the
accompanying notes thereto and other disclosures included in this Annual Report on Form 10-K, including the disclosures
under “Risk Factors.” Our consolidated financial statements have been prepared in accordance with generally accepted
accounting principles in the U.S. (“U.S. GAAP”) and unless otherwise indicated are presented in U.S. dollars.

Except for the historical information contained herein, the matters discussed in this MD&A may be deemed to be
forward-looking  statements.  Forward-looking  statement  are  only  predictions  based  on  management’s  current  views  and
assumptions and involve risks and uncertainties, and actual results could differ materially from those projected or implied.
We  make  such  forward-looking  statements  pursuant  to  the  safe  harbor  provisions  of  the  Private  Securities  Litigation
Reform Act of 1995 and other federal securities laws. Words such as “may,” “expect,” “anticipate,” “estimate,” “intend,”
and similar expressions (as well as other words or expressions referencing future events, conditions or circumstances) are
intended to identify forward-looking statements.

Overview

We are a leader in the field of gene therapy, seeking to deliver to patients suffering from rare and other devasting
diseases  single  treatments  with  potentially  curative  results.  We  are  advancing  a  focused  pipeline  of  innovative  gene
therapies,  including  our  clinical  candidates  for  the  treatment  of  Huntington’s  disease,  ALS,  refractory  MTLE  and  Fabry
disease.  Our  internally  developed  HEMGENIX®,  a  gene  therapy  for  the  treatment  of  hemophilia  B,  was  approved  for
commercialization by the FDA in November 2022 and by the EMA in February 2023.  In June 2020, we entered into the
Commercialization  and  License  Agreement  to  license  HEMGENIX®  to  CSL  Behring,  which  is  responsible  for  its
commercialization. We are manufacturing HEMGENIX® for CSL Behring and are entitled to specific milestone payments
and royalties on net sales under the Commercialization and License Agreement. In May 2023, we entered into the Royalty
Purchase  Agreement  for  the  sale  of  a  portion  of  the  royalty  rights  due  to  us  from  CSL  Behring  under  the
Commercialization and License Agreement. On October 5, 2023, we announced a Reorganization (see definition below) of
our research and technology programs.

Business Developments

Below is a summary of our recent significant business developments:

Huntington’s disease program (AMT-130)

We are currently conducting a multi-center randomized, controlled, and blinded Phase I/II clinical trial for AMT-
130 in the U.S. in which 26 patients with early-manifest Huntington’s disease have been enrolled. The low-dose cohort of
this trial includes 10 patients, of which six patients received treatment with AMT-130 and four patients received imitation
surgery. The high-dose cohort includes 16 patients, of which 10 patients received treatment with AMT-130 and six patients
received imitation surgery. Patients in the high-dose cohort that received imitation surgery had the option to cross over after
12 months if they met the inclusion criteria for the study. In July 2022, we began crossing over patients in the high-dose
cohort who received the imitation surgical procedure. Four of the six control patients in the high-dose cohort have been
crossed over to treatment (three patients received the high dose and one patient received the low dose). The remaining two
control  patients  in  the  high-dose  cohort  did  not  meet  all  the  inclusion  criteria  for  the  study  and  were  not  eligible  for
crossover.  All  four  crossover  patients  received  a  short  course  of  immunosuppression  therapy  concurrent  with  the
administration of AMT-130.

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We are also conducting an open-label Phase Ib/II study in the EU and the United Kingdom, which has enrolled 13
patients  with  the  same  early-manifest  criteria  for  Huntington’s  disease  as  the  U.S.  study.  Six  patients  were  treated  with
AMT-130 in the initial low-dose cohort and seven patients were treated in the subsequent high-dose cohort.

In November 2023, we began enrolling patients in a third cohort to further investigate both doses in combination
with perioperative immune suppression with a focus on evaluating near-term safety. Up to 12 patients will be treated in this
cohort, all of whom will receive AMT-130 using the current, established stereotactic neurosurgical delivery procedure.

In June 2023, we announced interim data, including up to 24-month follow-up, from 26 patients enrolled in the
ongoing U.S. Phase I/II clinical trial of AMT-130.  In December 2023 we announced updated interim data, including up to
30-month follow-up from the 26 patients enrolled in the ongoing U.S. Phase I/II clinical trial of AMT-130 as well as the 13
patients  enrolled  in  the  European  Phase  Ib/II  trial.    See  “Business  —Our  Development  of  AMT-130  for  Huntington’s
Disease” for further information on these interim data and the ongoing clinical trials of AMT-130.

Amyotrophic lateral sclerosis program (AMT-162)

On January 31, 2023, we announced that we had entered into a global licensing agreement with Apic Bio for a

one-time, intrathecally administered investigational gene therapy for ALS caused by mutations in SOD1.

We made an initial cash payment in February 2023 of $10.0 million to Apic Bio that was recognized as a research
and  development  expense.  We  owe  up  to  $43.0  million  in  milestone  payments  to  Apic  Bio  if  AMT-162  is  approved  for
commercialization in the U.S. and Europe.

Temporal lobe epilepsy program (AMT-260)

AMT-260 is our gene therapy candidate for refractory MTLE. We acquired AMT-260 through our acquisition of
uniQure France SAS in July 2021. In September 2023, following the clearance of an IND for AMT-260 in August 2023,
we paid EUR 10.0 million ($10.6 million) to the former shareholders of uniQure France SAS, to settle a milestone payment
owed in relation to our 2021 acquisition.

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Reorganization

On October 5, 2023, we announced that we are implementing a Reorganization. As a result of the Reorganization,
we  discontinued  investments  in  more  than  half  of  our  research  programs,  including  AMT-210  for  the  treatment  of
Parkinson’s  disease  and  certain  technology  projects.  Following  the  Reorganization,  we  are  prioritizing  advancing  our
clinical-stage programs to clinical proof of concept.

As  a  result  of  the  Reorganization,  we  eliminated  approximately  20%  of  our  total  workforce  and  closed  our
research  laboratory  in  Lexington,  Massachusetts.  We  completed  the  Reorganization  by  the  end  of  fiscal  year  2023  and
incurred costs of approximately $2.5 million for cash expenditures related to employee severance costs. We also incurred
costs associated with the closure of a research laboratory in Lexington and associated fixed assets of which the carrying
values were determined to not be recoverable as of the cease-use date in November 2023. As part of the Reorganization,
we  also  consolidated  all  GMP  manufacturing  into  our  Lexington  manufacturing  facility  and  consolidated  process  and
analytical development into our Amsterdam, Netherlands facility.

As  a  result  of  the  significant  reduction  in  research  activities,  Ricardo  Dolmetsch,  Ph.D.,  departed  as  Chief
Scientific Officer, effective October 4, 2023. Dr. Dolmetsch served as a scientific consultant through the end of the year. In
connection with Dr. Dolmetsch’s transition, the Board of Directors of the Company have appointed Richard Porter, Ph.D.,
our  current  Chief  Business  Officer,  to  serve  as  the  Company’s  Chief  Business  and  Scientific  Officer,  effective  as  of
October 5, 2023.

Financing

Royalty Financing Agreement

On May 12, 2023, we entered into the Royalty Financing Agreement with the Purchaser. Under the terms of the
Royalty Financing Agreement, we received an upfront payment of $375.0 million in exchange for the Purchaser’s rights to
the lowest royalty tier on CSL Behring’s worldwide net sales of HEMGENIX® for certain current and future royalties due
to  us.  We  are  also  eligible  to  receive  an  additional  $25.0  million  milestone  payment  under  the  Royalty  Financing
Agreement if 2024 net sales of HEMGENIX® exceed a pre-specified threshold. The Purchaser will receive 1.85 times the
upfront payment (or $693.8 million) and 1.85 times the $25.0 million milestone payment (if paid) prior to the First Hard
Cap Date or, if such cap is not met, up to 2.25 times the upfront and milestone payment (if paid) through December 31,
2038. If 2024 net sales do not exceed a pre-specified threshold, we will be obligated to pay $25.0 million to the Purchaser
but  only  to  the  extent  that  we  achieve  a  future  sales  milestone  under  the  CSL  Behring  Agreement.  If  such  milestone
payment is not due from CSL Behring, we are not obligated to pay any amounts to the Purchaser.

We retained the rights to all other royalties, as well as contractual milestones totaling up to $1.3 billion, under the

terms of the CSL Behring Agreement.

Hercules amendment

Upon entering into the Royalty Financing Agreement, we and Hercules amended the 2021 Restated Facility on
May 12, 2023. The 2023 Amended Facility extends the maturity date and interest-only period from December 1, 2025 to
January 5, 2027.

Investment in debt securities

In July and September 2023, we invested $272.0 million and EUR 87.0 million (or a total of $366.4 million as of
the investment dates) of our cash and cash equivalents into short-term U.S. and European government bonds that are U.S.
dollar and euro denominated, respectively. Our investment policy requires us to invest in bonds with the highest investment
grade credit rating. As of December 31, 2023, the bonds have remaining maturities ranging from less than one month to
seven months. We classify these bonds as held-to-maturity.

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CSL Behring collaboration

In June 2023, the first sale of HEMGENIX® in the U.S. occurred, and in July 2023 we collected the $100.0

million owed to us under the CSL Behring Agreement.

Financial Highlights

Key components of our results of operations include the following:

2023

Total revenues
Cost of license revenues
Cost of contract manufacturing revenues
Research and development expenses
Selling, general and administrative expenses
Net (loss) / income

2021

Year ended December 31, 
2022
(in thousands)
$  106,483
 (1,254)
 (2,089)
 (197,591)
 (55,059)
 (126,789)

$  524,002
 (24,976)
 —
 (143,548)
 (56,290)
 329,589

$  15,843
 (65)
 (13,563)
 (214,864)
 (74,591)
 (308,478)

As  of  December  31,  2023,  we  had  $617.9  million  in  cash  and  cash  equivalents  and  investment  securities
(December  31,  2022:  $392.8  million  cash  and  cash  equivalents  and  investment  securities).  We  had  a  net  loss  of
$308.5 million in 2023, a net loss of $126.8 million in 2022 and net income of $329.6 million in 2021. As of December 31,
2023, we had an accumulated deficit of $890.4 million (December 31, 2022: $581.9 million).

Compared  to  the  year  ended  December  31,  2023,  we  expect  that  our  research  and  development  expenses  will
decline following the Reorganization, until such time we decide to advance one of our gene therapy product candidates into
late-stage clinical development.

See “Results of Operations” below for a discussion of the detailed components and analysis of the amounts above.

Critical Accounting Policies and Estimates

In preparing our consolidated financial statements in accordance with U.S. GAAP and pursuant to the rules and
regulations promulgated by the SEC we make assumptions, judgments and estimates that can have a significant impact on
our  net  loss/income  and  affect  the  reported  amounts  of  certain  assets,  liabilities,  revenue  and  expenses,  and  related
disclosures. On an ongoing basis, we evaluate our assumptions, estimates and judgments, including those related to what
we  believe  to  be  our  critical  accounting  policies.  Refer  to  Note  2  “Summary  of  significant  accounting  policies”  for  a
summary of our significant accounting policies.

We  base  our  assumptions,  judgments  and  estimates  on  historical  experience  and  various  other  factors  that  we
believe  to  be  reasonable  under  the  circumstances,  the  results  of  which  form  the  basis  for  making  judgments  about  the
carrying values of assets and liabilities that are not clear from other sources. Actual results may differ from these estimates
under  different  assumptions,  judgments  or  estimates.  We  also  discuss  our  critical  accounting  estimates  with  the  Audit
Committee of our Board of Directors.

We consider the following to be our critical accounting estimate:

● Contingent consideration recorded in relation to the uniQure France SAS business combination;

Contingent consideration

On  the  Acquisition  Date  of  uniQure  France  SAS  we  recorded  contingent  consideration  related  to  amounts
potentially payable to uniQure France SAS’s former shareholders. The amounts payable in accordance with the SPA are
contingent upon realization of certain milestones associated with the TLE research program. Contingent consideration was
measured  at  fair  value  at  the  Acquisition  Date  with  changes  in  fair  value  recognized  in  the  consolidated  statements  of
operations in research and development expenses.

Changes in contingent consideration can result from changes in the assumed achievement and timing of estimated

milestones and the discount rate used to estimate the fair value of the liability:

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● We had used discount rates ranging from 14.0% to 14.4% to calculate the contingent consideration as of
December  31,  2022.  As  of  December  31,  2023  we  increased  the  interest  rates  to  a  range  of  15.3%  to
15.6% to reflect increases in market interest rates. An increase in the discount rate reduces the fair value
of the contingent consideration liability whereas a decrease in the discount rate increases the fair market
value of the contingent consideration liability.

● We need to develop an estimate of when a milestone is expected to be achieved. An achievement of a
milestone at a later than currently expected date reduces the fair value of the contingent consideration
liability whereas an achievement at an earlier than currently expected date increases the fair value of the
contingent consideration liability.

● We  initially  recorded  the  contingent  consideration  liability  on  the  Acquisition  Date  assuming  a  40%
probability  of  advancing  the  TLE  research  program  into  clinical  development.  We  developed  this
estimate  using  data  from  an  external  study  regarding  the  average  likelihood  of  advancing  into  clinical
development at a certain stage or preclinical development. For the year ended December 31, 2022, we
had increased the probability to 66.0% following the commencement of toxicology studies for the TLE
program. During the year ended December 31, 2023 we increased the probability to 100.0% following
the clearance of the IND application for AMT-260 in August 2023. The increase in probabilities resulted
in a $14.2 million expense in the year ended December 31, 2023 and a $4.4 million expense in the year
ended  December  31,  2022.  This  also  resulted  in  an  increase  of  the  probability  that  AMT-260  may
advance to late-stage development and commercialization.

The  fair  value  of  the  contingent  consideration  liability  as  of  December  31,  2023  was  $43.0  million  and  as  of
December  31,  2022  was  $35.3  million.  The  increase  was  primarily  driven  by  the  increase  in  the  probability  of  TLE
advancing into clinical development to 100% following the clearance of the IND application for AMT-260 in August 2023.
If  as  of  December  31,  2023  we  had  assumed  TLE  was  certain  (i.e.,  100%  probability)  to  advance  into  late-stage
development and commercialization, then the fair value of the contingent consideration liability would have increased from
$43.0 million to $75.9 million. If as of December 31, 2023 we had assumed that we would discontinue development of the
TLE program, then we could have released the contingent consideration liability to income.

In  prior  periods,  we  have  considered  the  following  to  be  critical  accounting  estimates  but  have  determined  that

these are no longer considered critical for the current year:

● Valuation allowance related to Dutch deferred tax assets; and
● Revenue recognition related to CSL Behring milestones

Valuation allowance related to Dutch deferred tax assets

We are subject to corporate taxes in the Netherlands. We have been incurring net operating losses in accordance

with the corporate tax laws in almost all years since we founded our business.

As of December 31, 2022, the total amount of net operating losses carried forward under the Dutch tax regime
was  $264.0  million  (December  31,  2021:  $228.5  million).  We  have  historically  recorded  a  full  valuation  allowance.  We
evaluate  all  positive  and  negative  evidence  including  future  income  from  the  CSL  Behring  Agreement  in  assessing  the
need for such a full valuation allowance. We concluded that as of December 31, 2022 it is more likely than not that the
remaining deferred tax assets will not be realized. If we would have released the full valuation allowance as of December
31, 2022, then we would have recorded up to $74.5 million of deferred tax income during the year ended December 31,
2022. This is no longer considered a critical accounting estimate as future income from the CSL Behring Agreement is not
expected to result in a taxable profit.

Revenue recognition related to CSL Behring milestones

On    June  24,  2020  (“  Signing  Date”),  we  entered  into  the  CSL  Behring  Agreement.  The  transaction  became

effective on Closing.

As of Closing, we identified two material performance obligations related to the CSL Behring Agreement:

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(i)

(ii)

Sale of the exclusive global rights to the Product (“License Sale”); and

Generate  information  to  support  the  regulatory  approval  of  the  current  and  next  generation  manufacturing
process  of  Product  and  to  provide  any  such  information  generated  to  CSL  Behring  (“Manufacturing
Development”).

We determined that the fixed upfront payment of $450.0 million and the $12.4 million that we received in relation
to  the  certain  reimbursable  activities  to  fulfill  the  transfer  of  global  rights  (“Additional  Covenants”)  in  the  year  ended
December  31,  2021  should  be  allocated  to  the  License  Sale.  In  addition,  we  concluded  that  $255.0  million  of  variable
milestone payments, sales milestone payments and royalties should be allocated to the License Sale performance obligation
as well. We determined that the License Sale was completed on May 6, 2021, when we transferred the license and CSL
Behring  assumed  full  responsibility  for  the  development  and  commercialization  of  the  Product.  Upon  the  Closing,  we
evaluated the amounts of potential payments and the likelihood that the payments will be received. We utilized the most
likely amount method to estimate the variable consideration to be included in the transaction price. Since we cannot control
the  achievement  of  regulatory  and  first  commercial  sales  milestones,  we  concluded  that  all  potential  payments  were
constrained as of Closing. We determined that we would recognize revenue related to these payments, only to the extent
that  it  becomes  probable  that  no  significant  reversal  of  recognized  cumulative  revenue  will  occur  thereafter.  We  will
include  payments  related  to  sales  milestones  in  the  transaction  price  when  their  achievement  becomes  probable,  and  we
will include royalties on the sale of Product once these have been earned.

In  March  and  April  2022,  we  collected  the  $55.0  million  of  variable  milestone  payments  related  to  the
submissions of a BLA and MAA which we had recorded as license revenue in the year ended December 31, 2021. During
the  year  ended  December  31,  2022,  we  recorded  $100.0  million  of  variable  milestone  revenue  related  to  a  first  sale  of
HEMGENIX™ and collected this payment in July 2023. We no longer consider this a critical accounting estimate because
we currently do not expect to recognize any regulatory milestone payments within the next two years. The recognition of
license revenue related to sales milestone payments and royalties does not require significant judgement as we recognize
these as sales of HEMGENIX™ occur.

Recently Adopted Accounting Pronouncements

None.

Results of Operations

The following table presents a comparison of the years ended December 31, 2023, 2022 and 2021.

Year ended December 31, 

Total revenues
Operating expenses:
Cost of revenues
Research and development expenses
Selling, general and administrative expenses
Total operating expenses
Other income
Other expense
(Loss) / income from operations
Non-operating (expense) / income, net
(Loss) / income before income tax benefit
Income tax (expense) / benefit
Net (loss) / income

2023

2021
(in thousands)
$  15,843 $  106,483 $  524,002 $  (90,640) $  (417,519)

2022 vs 2021

2023 vs 2022

2022

 (13,628)
 (214,864)
 (74,591)
 (303,083)
 6,059
 (1,690)
 (282,871)
 (23,686)

 (3,343)
 (197,591)
 (55,059)
 (255,993)
 7,171
 (820)
 (143,159)
 14,900

 (24,976)
 21,633
 (143,548)
 (54,043)
 (56,290)
 1,231
 (224,814)
 (31,179)
 12,306
 (5,135)
 (876)
 56
 310,618
 (453,777)
 22,188
 (7,288)
$ (306,557) $ (128,259) $  332,806
 (461,065)
 4,687
 (3,217)
$ (308,478) $ (126,789) $  329,589 $  (181,689) $  (456,378)

 (10,285)
 (17,273)
 (19,532)     
 (47,090)
 (1,112)
 (870)
 (139,712)
 (38,586)
 (178,298)
 (3,391)

 (1,921)

 1,470

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Revenues and cost of revenues

Our revenues and associated costs for the years ended December 31, 2023, 2022 and 2021 were as follows:

License revenues
Contract manufacturing revenues
Collaboration revenues

Year ended December 31, 

2023

2022

2021

     2023 vs 2022     2022 vs 2021

(in thousands)

$  2,758
 10,835
 2,250

$

100,000
 1,717
 4,766

$

517,400
 —
 6,602

$  (97,242) $
 9,118
 (2,516)

(417,400)
 1,717
 (1,836)

Total revenues

$  15,843

$

106,483

$

524,002

$  (90,640) $

(417,519)

Cost of license revenues

 (65)

 (1,254)

(24,976)

 1,189

 23,722

Cost of contract manufacturing revenues

(13,563)

 (2,089)

 —  (11,474)

 (2,089)

Total cost

CSL Behring

$

(13,628)

$  (3,343) $

(24,976) $  (10,285) $  21,633

Effective on Closing of the CSL Behring Agreement we sold the exclusive global rights to the Product (“License
Sale”). We recognize license revenue in relation to the License Sale when it becomes probable that regulatory and sales
milestone  events  will  be  achieved  as  well  as  when  royalties  on  sales  of  Product  have  been  earned.  We  recognized  $2.8
million,  $100.0  million  and  $517.4  million  of  license  revenue  for  the  years  ended  December  31,  2023,  2022  and  2021,
respectively. We recognized $2.8 million of license revenue in 2023 related to royalty payments owed on HEMGENIX®
sales, when earned. We recognized $100.0 million of license revenue in 2022 related to a milestone payment following the
first sale of HEMGENIX® in the U.S. in 2023, which we considered probable as of December 31, 2022. We recognized
$517.4 million license revenue in 2021 related to the fixed upfront payment of $450.0 million and an additional payment of
$12.4 million we received after the Closing as well as a total of $55.0 million of payments related to milestone payments
owed  on  submission  of  the  MAA  in  March  2022  and  the  BLA  in  April  2022,  which  we  had  considered  probable  as  of
December 31, 2021.

We expense contract fulfillment costs associated with license revenue we receive from CSL Behring, which are
recognized as costs of license revenues. These expenses primarily consist of payments we owe to our licensors in relation
to license payments we receive from CSL Behring. We incurred $0.1 million, $1.3 million and $25.0 million of such cost
in the years ended December 31, 2023, 2022 and 2021, respectively.

We  recognize  collaboration  revenues  associated  with  services  to  CSL  Behring  in  accordance  with  the  CSL
Behring  Agreement.  Collaboration  revenue  related  to  these  contracted  services  is  recognized  when  the  performance
obligations are satisfied. We recognized $2.3 million, $3.0 million and $2.4 million of collaboration revenue for the years
ended  December  31,  2023,  2022  and  2021,  respectively.  The  decrease  in  collaboration  revenue  in  2023  of  $0.7  million
compared to 2022 was primarily related to a reduction in services requested by CSL Behring following the submissions of
the BLA and MAA for HEMGENIX®. The increase in collaboration revenue in 2022 of $0.6 million compared to 2021
was  primarily  related  to  revenues  related  to  full-time-employee  (“FTE”)  recharges  of  $3.0  million  recognized  from  the
CSL Behring Agreement as a result of additional development services that CSL Behring requested from us.

We recognize contract manufacturing revenues related to contract manufacturing HEMGENIX® for CSL Behring.
Contract manufacturing revenues are realized when earned upon sales of HEMGENIX® to CSL Behring. We recognized
$10.8  million  and  $1.7  million  contract  manufacturing  revenues  in  the  year  ended  December  31,  2023  and  2022,
respectively. We did not recognize such revenues in 2021 as we started contract manufacturing activities to supply CSL
Behring with HEMGENIX® following their submission of a BLA and MAA in the spring of 2022.

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We incurred $13.6 million and $2.1 million of cost of contract manufacturing revenues related to the manufacture
of  HEMGENIX®  in  the  years  ended  December  31,  2023  and  2022  respectively,  compared  to  nil  cost  of  contract
manufacturing revenues in the year ended December 31, 2021. Costs of contract manufacturing revenues has increased in
the  year  ended  December  31,  2023  compared  to  the  year  ended  December  31,  2022  due  to  the  increase  in  sales  of
HEMGENIX® and a write-down of inventory that has a cost basis in excess of its expected net realizable value.

BMS

We  recognized  collaboration  revenues  associated  with  certain  pre-clinical  analytical  development  and  process
development  activities  that  were  reimbursable  to  us  by  Bristol-Myers  Squibb  (“BMS”)  under  the  initial  collaboration,
research  and  license  agreements  (“BMS  CLA”)  and  the  amended  agreements  (“amended  BMS  CLA”)  as  well  as  other
related  agreements.  Collaboration  revenue  related  to  these  contracted  services  were  recognized  when  performance
obligations were satisfied. We recognized nil, $1.8 million and $4.2 million of collaboration revenue for the years ended
December 31, 2023, 2022 and 2021, respectively.

Following  the  termination  of  the  amended  BMS  CLA  on  February  22,  2023  we  did  not  recognize  any  further

revenue for services rendered in accordance with the BMS CLA.

Research and development expenses

We expense research and development (“R&D”) expenses as incurred. R&D expenses include costs which relate to
our  primary  activities  of  biopharmaceutical  research  and  development.  Our  R&D  expenses  generally  consist  of  costs
incurred for the development of our target candidates, which include:

● employee-related expenses, including salaries, benefits, travel and share-based compensation expense;
● costs  incurred  for  laboratory  research,  preclinical  and  nonclinical  studies,  clinical  trials,  statistical  analysis  and
report writing, and regulatory compliance costs incurred with clinical research organizations and other third-party
vendors;

● costs incurred to conduct consistency and comparability studies;
● costs incurred for the development and improvement of our manufacturing processes and methods;
● costs  associated  with  research  activities  for  enabling  technology  platforms,  such  as  next-generation  vectors,

promoters and re-administration of gene therapies;

● costs associated with the rendering of collaboration services;
● payments related to identifiable intangible assets without an alternative future use;
● payments  to  our  licensors  for  milestones  that  have  been  achieved  related  to  our  product  candidates,  including

approval of the MAA and BLA for HEMGENIX®;

● facilities, depreciation, and other expenses, which include direct and allocated expenses for rent and maintenance

of facilities, insurance, and other supplies; and

● changes in the fair value of liabilities recorded in relation to our acquisition of uniQure France SAS.

Our research and development expenses primarily consist of costs incurred for the research and development of our

product candidates, which include:

● AMT-130 (Huntington’s disease). We have incurred costs related to preclinical and nonclinical studies of AMT-
130 and have been incurring costs related to our U.S. Phase I/II clinical trial since February 2019. Since 2021,
we have also incurred costs related to our Phase Ib/II clinical trial in Europe;

● AMT-260 (Temporal lobe epilepsy). We have incurred costs related to the preclinical development of AMT-260.

We acquired this program on July 30, 2021;

● AMT-191 (Fabry disease). We have incurred costs related to the preclinical development of AMT-191 for the

treatment of Fabry disease;

● AMT-162 (Amyotrophic Lateral Sclerosis caused by mutations in SOD1) We have incurred costs related to the

acquisition in addition to costs incurred to initiate a Phase I/II clinical trial;

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● Etranacogene dezaparvovec (hemophilia B). We have incurred costs related to the research, development, and
production  of  etranacogene  dezaparvovec  for  the  treatment  of  hemophilia  B.  Up  to  the  Closing  of  the  CSL
Behring Agreement, we incurred costs related to the preparation of a BLA and MAA and for commercialization
of  the  Product.  We  also  incurred  costs  for  manufacturing  development.  After  the  Closing,  CSL  Behring  is
responsible for the clinical and regulatory development and commercialization of the Product;

● Preclinical  research  programs.  We  incurred  costs  related  to  the  research  of  multiple  preclinical  gene  therapy

product candidates with the potential to treat certain rare and other serious medical conditions; and

● Technology platform development and other related research. We incurred significant research and development

costs related to manufacturing and other enabling technologies that are applicable across all our programs.

Our  R&D  expenses  may  vary  substantially  from  period  to  period  based  on  the  timing  of  our  research  and
development activities, including manufacturing campaigns, regulatory submissions, and enrollment of patients in clinical
trials. The successful development of our product candidates is highly uncertain. Estimating the nature, timing, or cost of
the development of any of our product candidates involves considerable judgement due to numerous risks and uncertainties
associated with developing gene therapies, including the uncertainty of:

● the scope, rate of progress and expense of our research and development activities;
● our ability to successfully manufacture and scale-up production;
● clinical trial protocols, speed of enrollment and resulting data;
● the effectiveness and safety of our product candidates; and
● the timing of regulatory approvals.

A change in the outcome of any of these variables with respect to our product candidates that we may develop

could mean a significant change in the expenses and timing associated with the development of such product candidate.

Research  and  development  expenses  for  the  year  ended  December  31,  2023  were  $214.9  million,  compared  to
$197.6  million  and  $143.5  million  for  the  years  ended  December  31,  2022  and  2021,  respectively.  Other  research  and
development  expenses  are  separately  classified  in  the  table  below.  These  are  not  allocated  as  they  are  deployed  across
multiple projects under development.

Amyotrophic lateral sclerosis (AMT-162)
Temporal lobe epilepsy (AMT-260)
Huntington's disease (AMT-130)
Fabry disease (AMT-191)
Etranacogene dezaparvovec (AMT-060/061)
Programs in preclinical development and platform related
expenses
Total direct research and development expenses

2023

2022

Year ended December 31, 
2021
(in thousands)

2023 vs 2022

2022 vs 2021

$  16,039
 13,037
 12,991
 2,659
 (1,336)

$

 — $

 16,199
 19,846
 2,862
 2,474

 — $  16,039
 (3,162)
 913
 (6,855)
 10,529
 (203)
 859
 (3,810)
 8,738

$

 —
 15,286
 9,317
 2,003
 (6,264)

 11,005
$  54,395

 7,157
$  48,538

 7,986
$  29,025

$

 3,848
 5,857

 (829)
$  19,513

Employee and contractor-related expenses
Facility expenses
Disposables
Share-based compensation expense
Fair value changes related to contingent consideration
Other expenses
Impairment related to the Reorganization
Total other research and development expenses

 76,702
 29,490
 13,232
 16,881
 15,895
 6,831
 1,438
$  160,469

 64,935
 23,582
 17,830
 18,402
 7,081
 17,223
 —
$  149,053

 55,725
 18,796
 14,679
 12,822
 6,683
 5,818
 —
$  114,523

 11,767
 5,908
 (4,598)
 (1,521)
 8,814
 (10,392)
 1,438
$  11,416

 9,210
 4,786
 3,151
 5,580
 398
 11,405
 —
$  34,530

Total research and development expenses

$  214,864

$  197,591

$  143,548

$  17,273

$  54,043

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Direct research and development expenses

Amyotrophic Lateral Sclerosis caused by mutations in SOD1 (AMT-162)

On January 31, 2023, we entered into a global licensing agreement with Apic Bio for AMT-162. We have incurred
$10.0 million of expenses related to the acquisition. In addition, we have incurred $6.0 million of costs to initiate a Phase
I/II clinical trial in 2024.

Temporal lobe epilepsy (AMT-260)

In the years ended December 31, 2023, December 31, 2022 and December 31, 2021, we incurred $13.0 million,
$16.2 million and $0.9 million, respectively, expenses for the preclinical development of AMT-260, which we acquired on
July 30, 2021. In August 2023, the FDA cleared our IND application, and we started incurring costs for the preparation of a
Phase I clinical trial. The decrease in development costs in the year ended December 31, 2023 compared to 2022, results
from completing the IND enabling studies, initiated during the year ended December 31, 2022, in the first half of 2023.
The  increase  in  development  cost  in  the  year  ended  December  31,  2022,  compared  to  2021,  related  to  costs  incurred  in
relation  to  the  toxicology  study  we  initiated  during  the  year  as  well  as  the  manufacturing  of  supplies  for  clinical
development.

Huntington disease (AMT-130)

We incurred $13.0 million, $19.8 million and $10.5 million expenses in the years ended December 31, 2023, 2022
and 2021 respectively. Our external costs for the development of AMT-130 were primarily related to the execution of our
Phase I/II(b) clinical trials in the U.S. and in Europe. We enrolled 26 patients into our U.S. clinical trial between June 19,
2020  and  March  21,  2022  and  enrolled  13  patients  into  our  European  clinical  trial  between  June  23,  2022  and  June  21,
2023. The decrease of $6.8 million in external cost in the year ended December 31, 2023 compared to 2022 is a result of
enrolling  less  patients  into  the  clinical  trial  during  2023,  following  completion  of  U.S.  enrollment  in  March  2022.  The
increase of $9.3 million in external cost in the year ended December 31, 2022 compared to 2021 is a result of increased
enrolling  activities  in  2022,  including  cross-over  patients  from  our  U.S.  trial  and  starting  to  enroll  patients  into  our
European trial in 2022, as well as follow-up activities related to patients enrolled in prior periods.

Fabry disease (AMT-191)

In the years ended December 31, 2023, December 31, 2022 and December 31, 2021, we incurred $2.7 million,
$2.9 million and $0.9 million expenses, respectively, primarily related to our preclinical activities. In November 2023, the
FDA  cleared  the  IND  application,  and  we  started  incurring  additional  costs  for  Phase  I/II  clinical  trial  preparation.  The
decrease of $0.2 million in external costs in the year ended December 31, 2023 compared to 2022 is a result of completing
the IND enabling studies by November 2023. The increase of $2.0 million external costs in the year ended December 31,
2022 compared to 2021 is a result of initiating IND-enabling toxicology studies in August 2022.

Etranacogene dezaparvovec (AMT-060/061)

In  the  years  ended  December  31,  2023,  December  31,  2022  and  December  31,  2021,  we  incurred  $1.4  million
income,  $2.5  million  expenses  and  $8.7  million  expenses,  respectively  which  were  primarily  related  to  the  Phase  II
development of the hemophilia B program. After the Closing of the CSL Behring Agreement in May 2021, CSL Behring
was responsible for the clinical and regulatory activities and commercialization of the Product. We managed the existing
trials  on  behalf  of  CSL  Behring  until  such  responsibilities  were  transitioned  to  CSL  Behring  in  December  2022.  Direct
research  and  development  expenses  related  to  clinical  development  incurred  in  the  year  ended  December  31,  2022  and
2021 are presented net of reimbursements due from CSL Behring. In the same periods, we also incurred costs related to the
long-term follow-up of patients in our Phase I/II clinical trial of AMT-060 and our Phase IIb clinical trial of etranacogene
dezaparvovec. These costs are also presented net of reimbursements due from CSL Behring.

The decrease of $3.8 million in externals cost in the year ended December 31, 2023 compared to 2022 is a result
of transitioning the activities to CSL Behring in December 2022 and winding down the support in early 2023. The decrease
of  $6.3  million  external  cost  in  the  year  ended  December  31,  2022  compared  to  2021  is  a  result  of  CSL  Behring  being
responsible from May 2021 onwards.

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Preclinical programs & platform development

In the years ended December 31, 2023, 2022 and 2021 we incurred $11.0 million, $7.2 million and $8.0 million,
respectively,  of  costs  related  to  our  preclinical  activities  associated  with  product  candidates  for  various  other  research
programs and technology innovation projects.

Other research & development expenses

● We  incurred  $76.7  million  in  employee  and  contractor  expenses  in  the  year  ended  December  31,  2023
compared  to  $64.9  million  in  2022  and  $55.7  million  in  2021.  The  increase  in  2023  of  $11.8  million,
compared to 2022, primarily related to the hiring of new personnel and contractors to support our clinical-
stage programs and manufacturing operations as well as incurring $2.2 million in severance costs related to
the Reorganization with no such cost incurred in 2022. Our cost increased in 2022 by $9.2 million compared
to  2021  primarily  as  a  result  of  an  increase  in  personnel  and  contractor  related  expenses  to  support  the
preclinical and clinical trial development of our product candidates;

● We incurred $29.4 million in operating expenses and depreciation expenses related to our rented facilities in
the year ended December 31, 2023 compared to $23.6 million in 2022 and $18.8 million in 2021. Our costs
increased  by  $5.9  million  in  2023  compared  to  2022  as  a  result  of  incurring  additional  operating  and
depreciation  expenses  in  both  our  Lexington  and  Amsterdam  facilities.  The  increase  in  2022  compared  to
2021  of  $4.8  million  primarily  related  to  operating  expenses  and  depreciation  expense  incurred  from
additional sites in Lexington and increased depreciation expense related to the expansion of the Amsterdam
facility in 2021;

● We  incurred  $13.2  million  in  disposables  costs  in  the  year  ended  December  31,  2023  compared  to  $17.8
million in the year ended December 31, 2022 and $14.7 million in the year ended December 31, 2021. The
decrease in 2023 related to the reduction in activities in the second half of 2023 due to our Reorganization.
The  increase  in  2022  related  to  the  expansion  of  our  activities  to  support  the  development  of  our  product
candidates;  

● We  incurred  $16.9  million  in  share-based  compensation  expenses  in  the  year  ended  December  31,  2023
compared  to  $18.4  million  in  2022  and  $12.8  million  in  2021.  The  decrease  in  2023  of  $1.5  million,
compared to 2022, is primarily due to forfeitures as a result of the Reorganization and other severance, and a
decrease  in  the  fair  value  of  awards  granted.  This  was  partially  offset  by  recognizing  compensation  cost
related to performance share units granted in 2021, for which achievement of related performance conditions
was deemed probable during the year ended December 31, 2023. The increase in 2022 compared to 2021 of
$5.6  million  was  primarily  driven  by  the  increase  in  awards  granted,  including  those  to  newly  recruited
personnel as well as an increase in expense related to performance share units that were deemed probable;
● We incurred $15.9 million of expenses for the year ended December 31, 2023 related to an increase in the
fair value of contingent consideration associated with the acquisition of uniQure France SAS, compared to
$7.1 million and $6.7 million for the same periods in 2022 and 2021. The increase in 2023 was primarily due
to an increase in the probability of making future milestone payments following the dosing of the first patient
in Phase I/II clinical trial of AMT-260 after receiving IND acceptance in August 2023;

● We incurred $1.4 million of costs related to the impairment of the Lexington, MA facility right-of-use asset
and related leasehold improvements for the year ended December 31, 2023 compared to nil in prior periods;
and

● We incurred $6.8 million in other expenses in the year ended December 31, 2023 compared to $17.2 million
in 2022 and $5.8 million in 2021. The decrease in costs in 2023 of $10.4 million, compared to 2022, is due to
a decrease in contractual license expenses and a reduction in consultant-related expenses. For the year ended
December  31,  2023  we  incurred  $3.1  million  in  contractual  license  expenses  upon  the  EMA  approval  of
HEMGENIX® in February 2023 while for the year ended December 31, 2022, we incurred $7.0 million of
contractual  license  expense  upon  FDA  approval  of  HEMGENIX®  and  $1.1  million  contractual  license
expense for a valid patent claim granted within the EU. The increase in 2022 compared to 2021 is primarily
related to the contractual license expenses incurred in 2022.

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Selling, general and administrative expenses

Our  general  and  administrative  expenses  consist  principally  of  employee,  office,  consulting,  legal  and  other
professional and administrative expenses. We incurred expenses associated with operating as a public company, including
expenses for personnel, legal, accounting and audit fees, board of directors’ costs, directors' and officers' liability insurance
premiums,  Nasdaq  listing  fees,  expenses  related  to  investor  relations  and  fees  related  to  business  development  and
maintaining  our  patent  and  license  portfolio.  Our  selling  costs  include  employee  expenses  as  well  as  professional  fees
related to the preparation of a commercial launch of HEMGENIX® and advisory fees related to obtaining the CSL Behring
Agreement.

Selling, general and administrative expenses for the year ended December 31, 2023 were $74.6 million, compared

to $55.1 million and $56.3 million for the years ended December 31, 2022 and 2021, respectively.

● We incurred $24.8 million in personnel and contractor expenses in 2023 compared to $21.1 million in 2022
and $16.0 million in 2021. The increase in 2023 of $3.7 million, compared to 2022, and the increase in 2022
of $5.1 million, compared to 2021 was primarily related to the hiring of personnel and contractors to support
our  business  operations.  In  2023,  we  also  incurred  $0.4  million  in  severance  expense  related  to  the
Reorganization;  

● We incurred $17.4 million of share-based compensation expenses in 2023 compared to $15.5 million in 2022
and $12.8 million in 2021. The increase in 2023 compared to 2022 of $1.8 million was primarily related to an
increase in awards granted and from recognizing compensation cost for performance share units granted in
December  2021  that  were  deemed  probable  in  the  year  ended  December  31,  2023  offset  by  a  decrease  in
expense related to a decrease in the fair value of awards granted. The increase in 2022 compared to 2021 of
$2.7  million  was  primarily  related  to  the  increase  in  awards  granted,  including  those  to  newly  recruited
personnel as well as an increase in expense related to performance share units that were deemed probable;
● We incurred $11.7 million in professional fees in 2023 compared to $7.1 million in 2022 and $9.4 million in
2021. We regularly incur accounting, audit and legal fees associated with operating as a public company. In
the  year  ended  December  31,  2023,  we  incurred  additional  costs  in  professional  fees  related  to  our  global
licensing  agreement  with  Apic  Bio,  entering  into  the  Royalty  Purchase  Agreement,  and  other  corporate
initiatives. Additionally, in the year ended December 31, 2021 we incurred professional fees in relation to our
licensing transaction with CSL Behring and our acquisition of uniQure France SAS;

● We incurred $3.8 million, $1.0 million and $5.1 million in financial advisory fees in relation to our licensing
transaction with CSL Behring in the years ended December 31, 2023, December 31, 2022 and December 31,
2021;

● We incurred $3.8 million in intellectual property fees including registration and professional fees in the year
ended December 31, 2023 compared to $1.5 million in 2022 and $2.4 million in 2021. The increase in 2023
compared to 2022 of $2.3 million is mainly related to an increase in professional fees. The decrease in 2022
compared to 2021 of $0.9 million related to a decrease in intellectual property license fees and registration
costs; and

● We incurred $11.6 million in other operating expenses in 2023 compared to $7.9 million in 2022 and $8.2
million in 2021. The increase in 2023 compared 2022 of $3.7 million was primarily a result of an increase in
information technology expenses.

Other items, net

In the year ended December 31, 2023, we recognized $0.8 million in other expense in relation to a reduction in the
fair  market  value  of  our  equity  stake  in  VectorY  B.V.  following  an  October  2023  financing  round.  We  recognized  other
income  of  $0.3  million  and  $3.0  million  related  to  the  equity  stake  for  the  years  ended  December  31,  2022  and  2021,
respectively. We received the equity stake in VectorY B.V. in conjunction with a settlement agreement that the Company
and VectorY B.V. entered into in April 2021.

We  recognized  nil  in  other  income  of  employee  retention  credit  under  the  U.S.  CARES  Act  in  the  year  ended

December 31, 2023, compared to nil and $2.6 million of such income for the same periods in 2022 and 2021, respectively.

In  2023,  we  recognized  $5.0  million  in  income  related  to  payments  received  from  European  authorities  to
subsidize our research and development efforts in the Netherlands compared to $5.6 million in 2022 and $5.3 million in
2021.

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Other income for the years ended December 31, 2023, 2022, and 2021 also includes income from the subleasing

of a portion of our Amsterdam facility. We present expenses related to such income as other expense.

Other non-operating items, net

Our non-operating items, net, for the years ended December 31, 2023, 2022 and 2021 were as follows:

Year ended December 31, 

2023

2022

2021

2023 vs 2022

2022 vs 2021

(in thousands)

Interest income
Interest expense
Foreign currency (losses) / gains, net
Other non-operating gains / (losses)
Total non-operating (expense) / income, net

    $  19,562     $
 (41,557)
 (1,691)
 —
$ (23,686)

 (11,704)
 23,235
 2,760
$  14,900

 609     $

 162     $  18,953     $

 (7,474)
 29,660
 (160)
$ 22,188

 (29,853)
 (24,926)
 (2,760)
$  (38,586)

 447
 (4,230)
 (6,425)
 2,920
$  (7,288)

We  recognize  interest  income  associated  with  our  cash  and  cash  equivalents  and  investment  securities.  We
recognized $19.6 million interest income in 2023, $0.6 million in 2022 and $0.2 million in 2021. Interest income increased
by $19.0 million in 2023 compared to 2022 as a result of earning interest income from investing the proceeds of our May
2023 Royalty Financing Agreement as well as the $100.0 million milestone payment collected from CSL Behring in July
2023 into debt securities. In addition, our interest income in 2023 and 2022 compared to 2021 benefited from an increase in
interest rates on cash on hand. Our interest income increased in 2022 by $0.4 million compared to 2021 primarily due to
the interest income earned on investment securities.

We recognized $41.6 million interest expense in 2023, $11.7 million in 2022 and $7.5 million in 2021. Interest
expense  increased  by  $29.9  million  in  2023  compared  to  2022  due  to  an  increase  in  market  interest  rates  related  to  the
Hercules  debt  as  well  as  the  recognition  of  $26.9  million  of  accrued  interest  expense  related  to  the  Royalty  Financing
Agreement that we entered into in May 2023. Our interest expense in 2022 primarily increased by $4.2 million compared
to 2021 due to an increase in market interest rates in 2022.

We hold monetary items and enter into transactions in foreign currencies, predominantly in euros and U.S. dollars.
We recognize foreign exchange results related to changes in these foreign currencies. In 2023, we recognized a net foreign
currency loss of $1.7 million related to our borrowings from Hercules, the Royalty Financing Agreement and our cash and
cash equivalents and investment securities as well as loans between entities within the uniQure group, compared to a net
gain of $23.2 million in 2022 and a net gain of $29.7 million in 2021.

In 2023, we recognized nil within Other non-operating gains /(losses). In 2022, we recognized a $2.8 million net
gain within Other non-operating gains / (losses) related to a decrease in the fair value market value of a derivative financial
liability  related  to  the  change  of  control  payment  (“CoC-payment”)  compared  to  a  net  loss  of  $0.2  million  in  2021.  We
recorded a net gain in 2022 as no change of control event had occurred as of the February 22, 2023 Termination Date of the
amended BMS CLA. We had recorded a net loss of $0.2 million in 2021 for the increase in the fair market value of the
derivative financial liability related to the CoC-payment.

Income tax

We recognized $1.9 million of deferred tax expense in 2023, compared to $1.5 million of deferred tax income in
2022 and $3.2 million of deferred tax expense in 2021. In 2023, deferred tax expense recorded in the U.S., related to the
consumption of net operating losses, more than offset the deferred tax income recorded as a result of the buildup of net
operating losses by the French entity.

Deferred  tax  income  recorded  in  2022  results  from  deferred  tax  benefits  recorded  related  to  the  buildup  of  net
operating losses by the French entity which are partially offset by deferred tax expense recorded in the U.S. as a result of
the  consumption  of  net  operating  losses.  In  addition,  we  recorded  deferred  tax  expense  resulting  from  the  release  of
valuation allowance for the tax benefit of share issuance costs within the Netherlands in 2022.

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Deferred tax expense recorded in 2021 results from the consumption of net operating tax losses by our U.S. entity
as well as deferred tax expense resulting from the release of valuation allowance for the tax benefit of share issuance costs
within the Netherlands.

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Financial Position, Liquidity and Capital Resources

As  of  December  31,  2023,  we  had  cash  and  cash  equivalents,  restricted  cash  and  investment  securities  of
$621.1 million. Until such time, if ever, as we can generate substantial cash flows from successfully commercializing our
proprietary  product  candidates,  we  expect  to  finance  our  cash  needs  through  a  combination  of  equity  offerings,  debt
financings, collaborations, strategic alliances and marketing, distribution, and licensing arrangements. Based on our current
operating plan, research and development plans and our timing expectations related to the progress of our programs and
following  the  Reorganization,  we  believe  that  our  cash  and  cash  equivalents  and  investment  securities  will  fund  our
operations into second quarter of 2027. We have based this estimate on assumptions that may prove to be wrong, and we
could exhaust our available capital resources sooner than we expect. We expect that we will require additional funding if
we decide to advance AMT-130 for our Huntington’s disease gene therapy program or any of our other product candidates
into  late-stage  clinical  development.  Our  material  cash  requirements  include  the  following  contractual  and  other
obligations:

Debt

As  of  December  31,  2023,  we  had  an  outstanding  loan  amount  owed  to  Hercules  for  an  aggregate  principal
amount of $100.0 million. Future interest payments and financing fees associated with the loan total $47.6 million, with
$13.4 million payable within 12 months. We are contractually required to repay the $100.0 million in full in January 2027.

Leases

We  entered  into  lease  arrangements  for  facilities,  including  corporate,  manufacturing  and  office  space.  As  of
December 31, 2023, we had fixed lease payment obligations of $53.1 million, with $8.3 million payable within 12 months.

Commitments related to acquisition of uniQure France SAS (nominal amounts)

In  relation  to  our  acquisition  of  uniQure  France  SAS,  we  entered  into  commitments  to  make  payments  to  the
former shareholders upon the achievement of certain contractual milestones. The commitments include payments related to
post-acquisition services that we agreed to as part of the transaction. In September 2023, we made a payment of EUR 10.0
million  ($10.6  million)  to  the  former  shareholders  of  uniQure  France  SAS  following  the  FDA’s  clearance  of  the  IND
application  for  AMT-260.  As  of  December  31,  2023,  our  remaining  commitment  amounts  include  a  EUR  30.0  million
($33.1 million) milestone payment due upon treating the first patient in a Phase I/II clinical trial for AMT-260 and EUR
160.0 million ($176.6 million) in potential milestone payments associated with Phase III development and the approvals of
AMT-260  in  the  U.S.  and  European  Union.  The  timing  of  achieving  these  milestones  and  consequently  the  timing  of
payments, as well as whether the milestone will be achieved at all, is generally uncertain. These payments are owed in euro
and have been translated at the foreign exchange rate as of December 31, 2023, of $1.10/€1.00. As of December 31, 2023,
we expect these obligations will become payable between the first half of 2024 and 2031. If and when due, up to 25% of
the milestone payments can be settled with our ordinary shares.

Commitments related to licensors and financial advisors

We have obligations to make future payments to third parties that become due and payable on the achievement of
certain development, regulatory and commercial milestones (such as the start of a clinical trial, filing of a BLA, approval
by the FDA or product launch) or as a result of collecting payments related to our License Sale to CSL Behring. We also
owe payments to a financial advisor related to certain payments we will collect under the CSL Behring Agreement.

The table below summarizes our consolidated cash flow data for the years ended December 31:

Cash, cash equivalents and restricted cash at the beginning of the
period

Net cash used in operating activities
Net cash used in investing activities
Net cash generated from financing activities

Foreign exchange impact
Cash, cash equivalents and restricted cash at the end of period

98

2023

Year ended December 31, 
2022
(in thousands)

2021

$

$

 231,173
 (145,929)
 (205,686)
 362,721
 2,265
 244,544

$

$

 559,353
 (145,060)
 (182,734)
 1,445
 (1,831)
 231,173

$

$

 247,680
 287,959
 (67,387)
 94,858
 (3,757)
 559,353

    
    
    
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We  had  previously  incurred  losses  and  cumulative  negative  cash  flows  from  operations  since  our  business  was
founded  by  our  predecessor  entity  AMT  Holding  N.V.  in  1998,  with  the  exception  of  generating  income  in  2021  after
receiving  the  upfront  payment  upon  Closing  of  the  CSL  Behring  Agreement.  We  continue  to  incur  losses  in  the  current
period. We recorded a net loss of $308.5 million for the year ended December 31, 2023, and net loss of $126.8 million in
2022, and a net income of $329.6 million in 2021. As of December 31, 2023, we had an accumulated deficit of $890.4
million.

Sources of liquidity

From our first institutional venture capital financing in 2006 through the current period, we funded our operations
primarily  through  private  and  public  placements  of  equity  securities,  debt  securities,  payments  from  our  collaboration
partners as well as from selling a portion of royalties due from our collaboration partner CSL Behring. In May 2021, we
received a $462.4 million cash payment due from CSL Behring. We have collected $55.0 million related to CSL Behring’s
global regulatory submissions for etranacogene dezaparvovec in March and April 2022, and $100.0 million in July 2023
related to the first sale milestone of HEMGENIX® in the U.S., and are eligible to receive additional milestone payments,
as well as royalties (to the extent not owed to settle the liability from the Royalty Financing Transaction) on net sales of
HEMGENIX®.

On March 1, 2021, we entered into a Sales Agreement with SVB Leerink LLC (“SVB Leerink”) with respect to an
at-the-market (“ATM”) offering program, under which we, from time to time in our sole discretion, could offer and sell
through SVB Leerink, acting as agent, our ordinary shares, up to an aggregate offering price of $200.0 million. In the year
ended December 31, 2021, we received net proceeds of $29.6 million from the issuance of 921,730 ordinary shares under
the Sales Agreement that took place during March and April of that year. We paid SVB Leerink a commission equal to 3%
of the gross proceeds of the sales price of all ordinary shares sold through it as a sales agent under the Sales Agreement.
We did not issue any ordinary shares under the Sales Agreement for the 12-month periods ended December 31, 2023 and
 December 31, 2022.

On  January  29,  2021,  we  drew  down  $35  million  under  a  facility  agreement  with  Hercules.  We  drew  down  a

further $30 million under our 2021 Restated Facility with Hercules in December 2021.

We and Hercules amended the 2021 Restated Facility on May 12, 2023. The 2023 Amended Facility extends the

maturity date and interest-only period from December 1, 2025 to January 5, 2027.

We are required to repay the entire principal balance of $100.0 million on the maturity date. The interest rate is
adjustable  and  is  the  greater  of  (i)  7.95%  and  (ii)  7.95%  plus  the  prime  rate  less  3.25%  per  annum.  Under  the  2023
Amended  Facility,  we  owe  a  back-end  fee  of  $4.9  million  on  December  1,  2025  and  a  back-end  fee  of  $1.3  million  on
January 5, 2027.

We are subject to certain covenants under the 2023 Amended Facility and may become subject to covenants under
any  future  indebtedness  that  could  limit  our  ability  to  take  specific  actions,  such  as  incurring  additional  debt,  making
capital expenditures, or declaring dividends, which could adversely impact our ability to conduct our business. In addition,
our pledge of assets as collateral to secure our obligations under the 2023 Amended Facility may limit our ability to obtain
debt financing. The 2023 Amended Facility permits us to issue up to $500.0 million of convertible debt.

To the extent we need to finance our cash needs through equity offerings or debt financings, such financing may
be subject to unfavorable terms including without limitation, the negotiation and execution of definitive documentation, as
well as credit and debt market conditions, and we may not be able to obtain such financing on terms acceptable to us or at
all.  If  financing  is  not  available  when  needed,  including  through  debt  or  equity  financings,  or  is  available  only  on
unfavorable terms, we may be unable to meet our cash needs. If we raise additional funds through collaborations, strategic
alliances or marketing, distribution, or licensing arrangements with third parties, we may have to relinquish valuable rights
to our technologies, future revenue streams or product candidates or grant licenses on terms that may not be favorable to
us. If we are unable to raise additional funds through equity or debt financings when needed, we may be required to delay,
limit,  reduce  or  terminate  our  product  development  or  future  commercialization  efforts  or  grant  rights  to  develop  and
market product candidates that we would otherwise prefer to develop and market ourselves, which could have a material
adverse effect on our business, financial conditions, results of operations and cash flows.

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Net Cash used in / generated from operating activities

Cash flows from operating activities
Net (loss) / income
Adjustments to reconcile net (loss) /income to net cash (used in) / generated
from operating activities:

Depreciation, amortization and impairment
Amortization of premium/discount on investment securities
Share-based compensation expense
Royalty financing agreement interest expense
Deferred tax expense / (income)
Change in fair value of contingent consideration and derivative financial
instrument, net
Unrealized foreign exchange (gains) / losses, net
Other items, net

Changes in operating assets and liabilities:

Accounts receivable, prepaid expenses, and other current assets and
receivables
Contract asset related to CSL Behring milestone payments
Inventories
Accounts payable
Accrued expenses, other liabilities, and operating leases
Contingent consideration milestone payment

Net cash (used in) / generated from operating activities

2023

Year ended December 31, 
2022
(in thousands)

2021

$ (308,478)

$ (126,789)

$  329,589

 11,900
 (10,917)
 35,093
 26,933
 1,921

 15,895
 (2,206)
 4,721

 8,537
 —
 34,204
 —
 (1,470)

 4,320
 (22,083)
 1,605

 7,299
 —
 25,635

 3,210

 6,843
 (31,335)
 (2,800)

 (1,323)
 100,000
 (6,740)
 (4,169)
 (6,645)
 (1,914)
$ (145,929)

 (4,083)
 (45,000)
 (6,924)
 9,238
 3,385
 —
$ (145,060)

 (3,959)
 (55,000)
 -
 (727)
 9,204
 -
$  287,959

Net cash used in operating activities was $145.9 million for the year ended December 31, 2023, and consisted of a
net  loss  of  $308.5  million  adjusted  for  non-cash  items,  including  depreciation,  amortization  and  impairment  expense  of
$11.9 million, amortization of the premium/discount on investment securities of $10.9 million, share-based compensation
expense of $35.1 million, $26.9 million of interest expense related to the royalty financing agreement, a change in deferred
taxes of $1.9 million, $15.9 million change in the fair value of contingent consideration and unrealized foreign exchange
gains of $2.2 million. Net cash generated from operating activities also included favorable changes in operating assets and
liabilities of $81.1 million. There was a net increase in accounts receivable, prepaid expenses, and other current assets and
receivables of $1.3 million. There was a net decrease in contract assets of $100.0 million related to the collection of the
$100.0 million milestone due from CSL Behring in July 2023. There was an increase in inventory balances of $6.7 million.
There  was  a  net  decrease  in  accounts  payable,  accrued  expenses,  other  liabilities,  and  operating  leases  of  $10.8  million,
primarily  related  to  a  decrease  of  $4.2  million  in  accounts  payable  and  a  decrease  of  $6.6  million  related  to  various
accruals.  Net  cash  used  in  operating  activities  also  includes  a  payment  for  a  contingent  consideration  milestone  of  $1.9
million.

Net cash used in operating activities was $145.1 million for the year ended December 31, 2022, and consisted of a
net loss of $126.8 million adjusted for non-cash items, including depreciation and amortization expense of $8.5 million,
share-based  compensation  expense  of  $34.2  million,  changes  in  the  fair  value  of  contingent  consideration  and  the
derivative financial liability of $4.3 million, unrealized foreign exchange gains of $22.1 million and a change in deferred
taxes of $1.5 million. Net cash generated from operating activities also included unfavorable changes in operating assets
and liabilities of $43.4 million. There was a net increase in accounts receivable, prepaid expenses, and other current assets
and receivables of $4.1 million. There was a net increase in contract assets related to CSL Behring milestone payments of
$45.0 million. The net increase related to $100.0 million recognized as a contract asset in the current period and collection
of $55.0 million of the contract asset related to the CSL milestones of $55.0 million in March 2022 and April 2022. There
was  an  increase  in  inventories  of  $6.9  million  related  to  the  production  of  HEMGENIX®  under  the  CSL  Behring
Agreement.  These  changes  also  relate  to  a  net  increase  in  accounts  payable,  accrued  expenses,  other  liabilities,  and
operating leases of $12.6 million, primarily related to an increase in accounts payable.

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Net  cash  generated  from  operating  activities  was  $288.0  million  for  the  year  ended  December  31,  2021,  and
consisted of net income of $329.6 million adjusted for non-cash items, including depreciation and amortization expense of
$7.3 million, share-based compensation expense of $25.6 million, a change in fair value of contingent consideration of $6.8
million, unrealized foreign exchange gains of $31.3 million, a change in deferred taxes of $3.2 million and other non-cash
items,  net,  of  $2.8  million.  Net  cash  generated  from  operating  activities  also  included  unfavorable  changes  in  operating
assets and liabilities of $50.3 million, which includes $55.0 million recognized as a contract asset related to probable CSL
Behring  milestone  payments.  Additionally,  these  changes  also  related  to  a  net  increase  in  accounts  receivable,  prepaid
expenses,  and  other  current  assets  and  receivables  of  $4.0  million  primarily  related  to  an  increase  in  various  prepaids,
including  those  related  to  clinical  trials,  partially  offset  by  decrease  in  receivables  as  a  result  of  collection  of  the  BMS
milestone  that  was  recorded  as  of  December  31,  2020  and  collection  of  the  CSL  Behring  receivables  recorded  as  of
December  31,  2020  for  expenses  for  which  we  had  a  right  of  reimbursement  and  a  net  increase  in  accounts  payable,
accrued expenses, other liabilities, and operating leases of $8.5 million primarily related to an increase in various accruals
for  goods  received  from  and  services  provided  by  vendors  and  an  increase  in  personnel  accruals. Net income primarily
consisted  of  $462.4  million  license  revenue  recognized  on  Closing  and  $55.0  million  license  revenue  related  to  CSL
Behring’s global regulatory submissions for etranacogene dezaparvovec that occurred in March and April 2022 and were
considered probable on December 31, 2021.

Net cash used in investing activities

In 2023, we used $205.7 million in our investing activities compared to $182.7 million in 2022 and $67.4 million

in 2021.

Investment in investment securities
Proceeds from maturity of investment securities
Build out of Amsterdam site
Build out of Lexington site
Acquisition of uniQure France SAS, net of cash acquired
Net cash used in investing activities

2023

Year ended December 31, 
2022
(in thousands)

2021

$  (366,439) $  (163,146) $

 167,907
 (3,389)
 (3,765)
 —

 —
 (11,904)
 (5,784)
 (1,900)

$  (205,686) $  (182,734) $

 —
 —
 (12,412)
 (5,026)
 (49,949)
 (67,387)

In the years ended December 31, 2023 and 2022, we invested $366.4 million and $163.1 million, respectively, of
our cash on hand into euro and dollar denominated government bonds. We made no such investments in 2021. In the year
ended December 31, 2023 we received $167.9 million in proceeds from the maturing of investments securities.

In 2023, we invested $3.4 million in the build out of our Amsterdam site compared to $11.9 million in 2022 and
$12.4 million in 2021. Our investments in 2023 and 2022 related to investments into equipment while in 2021 investments
primarily related to the construction of additional laboratories to support the expansion of our research and development
activities as well as the construction of a cleanroom designed to be capable of manufacturing cGMP materials at a 500-liter
scale.

In 2023, we invested $3.8 million in our facility in Lexington compared to $5.8 million in 2022 and $5.0 million
in  2021.  Our  investments  in  2023  are  a  result  of  improvements  made  to  the  lease  facility  and  investment  in  office  and
laboratory equipment.

We paid EUR 1.8 million ($1.9 million) to acquire the remaining outstanding shares of uniQure France SAS in
February, July and September 2022. We paid EUR 42.1 million ($49.9 million), net of EUR 2.8 million ($3.3 million) of
cash acquired, during the year ended December 31, 2021 to acquire 97.7% of the outstanding ordinary shares of uniQure
France SAS on July 30, 2021.

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Net cash generated from financing activities

Cash flows from financing activities
Proceeds from Royalty Financing Agreement, net of debt issuance costs
Contingent consideration milestone payment
Proceeds from issuance of shares related to employee stock option and
purchase plans
Proceeds from loan increment, net of debt issuance costs
Proceeds from issuance of ordinary shares, net of issuance costs
Repayment of debt assumed through the acquisition of uniQure France SAS
Net cash generated from financing activities

2023

Year ended December 31, 
2022
(in thousands)

2021

$  370,062
 (7,649)

$

$

 -
 -

 -
 -

 308
 -
 -
 -
$  362,721

$

 1,445
 -
 -
 -
 1,445

$

 2,798
 64,067
 29,565
 (1,572)
 94,858

In June 2023, we received $370.1 million net proceeds from the Royalty Financing Agreement.

In September 2023, following the FDA’s clearance of the IND application for AMT-260, we made a payment of
$10.6 million to the former shareholders of uniQure France SAS based on contractually defined milestones. $9.6 million of
this  payment  related  to  a  contingent  consideration  of  which  $7.6  million  was  classified  as  cash  flows  from  financing
activities and $1.9 million was classified as a net cash flow used in operating activities.

In 2023, we received $0.3 million from the exercise of options to purchase ordinary shares issued in accordance

with our share incentive plans, compared to $1.4 million in 2022 and $2.8 million in 2021.

In January 2021, we received $34.6 million net proceeds from the 2021 Amended Facility and in December 2021
we received $29.5 million net proceeds from the 2021 Restated Facility for combined net proceeds of $64.1 million (nil in
2023 and 2022).

We received net proceeds of $29.6 million associated with our ATM offering in March and April 2021. No such

proceeds were received in 2023 or 2022.

Upon the acquisition of uniQure France SAS, uniQure France SAS held loans with an outstanding amount equal

to EUR 1.4 million ($1.6 million). During the year ended December 31, 2021, the loans were repaid in their entirety.

Funding requirements

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

●  contractual milestone payments and royalties we might be owed in accordance with the CSL Behring 

Agreement;

● earnout payments we might owe the former shareholders of uniQure France SAS, which are subject to the

achievement of specific development and regulatory milestones;

● the scope, timing, results, and costs of our current and planned clinical trials, including those for AMT-130 in

Huntington’s disease;

● the scope, obligations and restrictions on our business related to our existing equity, debt or royalty

monetization financings and underlying agreements;

● the extent to which we acquire or in-license other businesses, products, product candidates or technologies;
● the amount and timing of revenue, if any, we receive from manufacturing products for CSL Behring;
● the scope, timing, results and costs of preclinical development and laboratory testing of our additional product

candidates;

● the need for additional resources and related recruitment costs to support the preclinical and clinical

development of our product candidates;

● the need for any additional tests, studies, or trials beyond those originally anticipated to confirm the safety or

efficacy of our product candidates and technologies;

● the cost, timing and outcome of regulatory reviews associated with our product candidates;

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● our ability to enter into collaboration arrangements in the future;
● the costs and timing of preparing, filing, expanding, acquiring, licensing, maintaining, enforcing, and

prosecuting patents and patent applications, as well as defending any intellectual property-related claims; and

● the costs associated with maintaining quality compliance and optimizing our manufacturing processes,
including the operating costs associated with our Lexington, Massachusetts manufacturing facility.

Item 7A.  Quantitative and Qualitative Disclosures About Market Risk.

We  are  exposed  to  a  variety  of  financial  risks  in  the  normal  course  of  our  business,  including  market  risk
(including  currency,  price,  and  interest  rate  risk),  credit  risk  and  liquidity  risk.  Our  overall  risk  management  program
focuses  on  preservation  of  capital  and  the  unpredictability  of  financial  markets  and  has  sought  to  minimize  potential
adverse effects on our financial performance and position.

Market Risk

Currency risk

We are exposed to foreign exchange risk arising from various currencies, primarily with respect to the U.S. dollar
and euro and to a lesser extent to the British pound and the Swiss Franc. As our U.S. operating entity primarily conducts its
operations in U.S. dollars, its exposure to changes in foreign currency is insignificant. Similarly, the exposure to changes in
foreign currencies of our Swiss and French entities are insignificant as well.

Our Dutch entities hold significant amounts of U.S. dollars in cash and cash equivalents and investment securities,
have debt and interest obligations to Hercules denominated in U.S. dollars, generate collaboration revenue denominated in
U.S.  dollars,  receive  services  from  vendors  denominated  in  U.S.  dollars  and  occasionally  British  Pounds  and  fund  the
operations  of  our  U.S.  operating  entity  in  U.S.  dollars.  Foreign  currency  denominated  account  receivables  and  account
payables are short-term in nature (generally 30 to 45 days).

Variations  in  exchange  rates  will  impact  earnings  and  other  comprehensive  income  or  loss.  On  December  31,
2023, if the euro had weakened 10% against the U.S. dollar with all other variables held constant, pre-tax loss for the year
would have been $6.0 million higher (December 31, 2022: pre-tax loss $20.4 million lower), and other comprehensive loss
would have been $0.3 million higher (December 31, 2022: $24.4 million higher). Conversely, if the euro had strengthened
10% against the U.S. dollar with all other variables held constant, pre-tax loss for the year would have been $6.0 million
lower (December 31, 2022: pre-tax loss $20.4 million higher), and other comprehensive loss would have been $2.6 million
lower (December 31, 2022: $32.1 million lower).

We  strive  to  mitigate  foreign  exchange  risk  through  holding  sufficient  funds  in  euro  and  dollars  to  finance

budgeted cash flows for generally 18 months.

The sensitivity in other comprehensive income to fluctuations in exchange rates primarily relates to the translation

of the net assets of our Dutch entities from their functional currency euro into our reporting currency U.S. dollar.

Price risk

The  market  prices  for  the  provision  of  preclinical  and  clinical  materials  and  services,  as  well  as  external

contracted research, may vary over time.

The commercial prices of any of our products or product candidates are currently uncertain.

We are not exposed to commodity price risk.

We do not hold investments classified as available-for-sale or at fair value through profit or loss; therefore, we are

not exposed to equity securities price risk.

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Interest rate risk

Our interest rate risk arises from short- and long-term debt and investment securities.

In June 2013, we entered into the Hercules Agreement, which was last amended in May 2023, under which our
borrowings bear interest at a variable rate with a fixed floor. Long-term debt issued at fixed rates expose us to fair value
interest rate risk. As of December 31, 2023, the loan bore an interest rate of 13.2%.

As  of  December  31,  2023,  if  interest  rates  on  borrowings  had  been  1.0%  higher  with  all  other  variables  held
constant, pre-tax earnings for the year would have been $1.0 million lower (2022: $1.0 million lower; 2021: $0.7 million
lower.)

We invest in government debt in accordance with our investment policy. We are exposed to interest rate risk as
market interest rates could differ from the interest rates that we fix at the time of acquiring these investment securities. As
we intend to hold these to maturity, we do not recognize changes in the fair value of our investment which are caused by
changes in market interest rates.

This means that a change in prevailing interest rates may cause the fair value of the investment to fluctuate. For
example, if we hold a security that was issued at a fixed interest rate at the then-prevailing rate and the prevailing interest
rate later rises, the fair value of our investment will probably decline.

The duration of all of our investment securities held as of December 31, 2023, was between one to seven months.
Due to the relatively short-term nature of these financial instruments and our ability and intention to hold these investments
to maturity, we believe there is no material exposure to interest rate risk.

Credit Risk

Credit risk is managed on a consolidated basis. Credit risk arises from cash and cash equivalents and deposits with
banks  and  financial  institutions,  outstanding  receivables  and  committed  transactions  with  collaboration  partners  and
security deposits paid to landlords. We currently have no wholesale debtors other than CSL Behring.

We deposited funds as security to our landlord related to our facility in Amsterdam. We also deposited funds to the

provider of our U.S. corporate credit cards. The deposits are neither impaired nor past due.

Our  cash  and  cash  equivalents  include  bank  balances,  demand  deposits  and  other  short-term  highly  liquid
investments (with maturities of less than three months at the time of purchase) that are readily convertible into a known
amount of cash and are subject to an insignificant risk of fluctuation in value. Restricted cash includes deposits made in
relation to facility leases. We also have short-term investment securities in U.S. and European government bonds maturing
within one to seven months. Our investment policy requires us to invest in U.S. and European government bonds with the
highest  investment  credit  rating.  Due  to  the  high  credit  quality  of  our  counterparties,  we  believe  there  is  no  material
exposure to credit risk in our portfolio of investment securities.

Liquidity Risk

Based on our current operating plan, research and development plans and our timing expectations related to the
progress of our programs and following the Reorganization, we believe that our cash and cash equivalents and investment
securities will fund our operations into the second quarter of 2027. We have based this estimate on assumptions that may
prove to be wrong, and we could exhaust our available capital resources sooner than we expect. We expect that we will
require additional funding if we decide to advance AMT-130 for our Huntington’s disease gene therapy program or any of
our  other  product  candidates  into  late-stage  clinical  development.  The  table  below  analyzes  our  financial  liabilities  in
relevant maturity groupings based on the length of time until the contractual maturity date, as of the balance sheet date.
Disclosed  in  the  table  below  are  the  contractual  undiscounted  cash  flows.  Balances  due  within  12  months  equal  their
carrying value as the impact of discounting is not significant.

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At December 31, 2023
Long-term debt
Accounts payable, accrued expenses and
other current liabilities
Commitments related to acquisition of
uniQure France SAS (maximum nominal
amounts)(1)
Total
At December 31, 2022
Long-term debt
Accounts payable, accrued expenses and
other current liabilities
Commitments related to acquisition of
uniQure France SAS (maximum nominal
amounts)(1)
Total

Undefined

Less than
1 year

Between
1 - 3 years
(in thousands)

Between
3 - 5 years

Over 5 years

$

 — $

 13,420

$

 134,150

$

 — $

 —  

 37,120

 —  

 —  

 209,707
$  209,707

$

 —  
$

 50,540

 —  
$

 134,150

 —  
 — $

 —

 —

 —
 —

$

 14,870

 129,622

 41,555

 214,070
$  214,070

$

 56,425

$

 129,622

$

 — $

 —

(1)  Payments are due in EUR and have been translated at the foreign exchange rate as of December 31, 2023, of $1.10 / €1.00

In  relation  to  our  acquisition  of  uniQure  France  SAS,  we  entered  into  commitments  to  make  payments  to  the
former shareholders upon the achievement of certain contractual milestones. The commitments include payments related to
post-acquisition services that we agreed to as part of the transaction. The timing of achieving these milestones, as well as
whether the milestone will be achieved at all, and consequently the timing of payments is generally uncertain. We expect
these obligations will become payable between 2024 and 2031, with the next milestone expected to be settled within the
next year. If and when due, up to 25% of the milestone payments can be settled with our ordinary shares.

Item 8.  Financial Statements and Supplementary Data.

The information required by this Item 8 is included in Part IV, Item 15, and is incorporated by reference.

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

None.

Item 9A.  Controls and Procedures.

Evaluation of Disclosure Controls and Procedures

Our  management,  with  the  participation  of  our  chief  executive  officer  (“CEO”,  our  principal  executive  officer)
and chief financial officer (“CFO”, our principal financial officer), evaluated the effectiveness of our disclosure controls
and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) as of December 31, 2023. Based on
such evaluation, our CEO and CFO have concluded that as of December 31, 2023, our disclosure controls and procedures
were effective.

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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  defined  in  Rules  13a-15(f)  and  15d-15(f)  under  the  Exchange  Act.  This  rule  defines  internal  control  over
financial  reporting  as  a  process  designed  by,  or  under  the  supervision  of,  a  company’s  chief  executive  officer  and  chief
financial officer and effected by our board of directors, management and other personnel, to provide reasonable assurance
regarding  the  reliability  of  financial  reporting  and  the  preparation  of  financial  statements  for  external  purposes  in
accordance with generally accepted accounting principles and includes those policies and procedures that (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 our assets that could have a material effect on the financial statements.

We  assessed  the  effectiveness  of  our  internal  control  over  financial  reporting  as  of  December  31,  2023.  This
assessment was performed under the direction and supervision of our CEO and CFO and based on criteria established in
Internal  Control  -  Integrated  Framework  (2013)  issued  by  the  Committee  of  Sponsoring  Organizations  of  the  Treadway
Commission (“COSO”). Our management’s assessment of the effectiveness of our internal control over financial reporting
included  testing  and  evaluating  the  design  and  operating  effectiveness  of  our  internal  controls.  In  our  management’s
opinion, we have maintained effective internal control over financial reporting as of December 31, 2023, based on criteria
established in the COSO 2013 framework.

Our  independent  registered  public  accounting  firm,  which  has  audited  the  consolidated  financial  statements
included in this Annual Report on Form 10-K, has also issued an audit report on the effectiveness of our internal control
over financial reporting as of December 31, 2023. Their report is filed within this Annual Report on Form 10-K.

Inherent Limitations of Internal Controls

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

Changes in internal control over financial reporting

During the fourth quarter of 2023, there were no changes in our internal control over financial reporting (as defined
in  Rule  13a-15(f)  under  the  Exchange  Act)  that  materially  affected,  or  are  reasonably  likely  to  materially  affect,  our
internal control over financial reporting.  

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Item 9B.  Other Information

Trading Arrangements

During  the  three  months  ended  December  31,  2023,  none  of  our  directors  or  officers  informed  us  of  the  adoption,
modification or termination of a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,”  as  each
term is defined in Item 408(a) of Regulation S-K.

Amendments to Code of Ethics

On February 27, 2024, our Board approved certain amendments to our Code of Business Conduct and Ethics (as amended,
the “Code”) upon the recommendation of the Audit Committee of the Board. The Code was approved and adopted by the
Board as part of its ordinary course and recurring review of our corporate codes and policies and applies to our employees,
directors and officers. The amendments to the Code did not relate to or result in any waiver, explicit or implicit, of any
provision of the Code in effect prior to the amendment.

The  amendments  to  the  Code  update,  clarify  and,  in  certain  cases,  enhance  provisions  of  the  Code  including,  but  not
limited  to,  the  reporting  of  actual  or  possible  violations  of  the  Code,  the  scope  of  matters  that  are  reportable  under  the
Code, the scope of the Audit Committee’s oversight regarding concerns and complaints involving allegations of fraud or
violations of applicable law or regulation, and enforcement and compliance procedures with respect to alleged violations of
the Code.

The above description of the Code does not purport to be complete and is qualified in its entirety by reference to the full
text  of  the  Code,  a  copy  of  which  is  filed  as  Exhibit  14.1  to  this  Annual  Report  on  Form  10-K  and  available  on  the
Investors & Media subpage of our website at www.uniqure.com under the “Corporate Governance” link. Information on
our website shall not be deemed incorporated by reference into, or to be a part of, this Annual Report on Form 10-K.

Item 9C.  Disclosure Regarding Foreign Jurisdictions that Prevent Inspections

None.

Item 10.  Directors, Executive Officers and Corporate Governance

Part III

The information required by this item is incorporated by reference from our Proxy Statement for our 2024 annual
meeting of shareholders, which we will file within 120 days of December 31, 2023, or will be included in an amendment to
this Annual Report on Form 10-K.

Item 11.  Executive Compensation

The information required by this item is incorporated by reference from our Proxy Statement for our 2024 annual
meeting of shareholders, which we will file within 120 days of December 31, 2023, or will be included in an amendment to
this Annual Report on Form 10-K.

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

The information required by this item is incorporated by reference from our Proxy Statement for our 2024 annual
meeting of shareholders, which we will file within 120 days of December 31, 2023, or will be included in an amendment to
this Annual Report on Form 10-K.

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

The information required by this item is incorporated by reference from our Proxy Statement for our 2024 annual
meeting of shareholders, which we will file within 120 days of December 31, 2023, or will be included in an amendment to
this Annual Report on Form 10-K.

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Item 14.  Principal Accounting Fees and Services

The information required by this item is incorporated by reference from our Proxy Statement for our 2024 annual
meeting of shareholders, which we will file within 120 days of December 31, 2023, or will be included in an amendment to
this Annual Report on Form 10-K.

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Item 15.  Exhibits, Financial Statements Schedules

Exhibits, Financial Statements Schedules

Part IV

(a)

Financial Statements. The following consolidated financial statements of uniQure N.V. are filed as part
of this report:

Report of Independent Registered Public Accounting Firm – KPMG Accountants N.V.
Consolidated Balance Sheets as of December 31, 2023 and 2022
Consolidated Statements of Operations and Comprehensive Loss for the Years Ended December 31, 2023, 2022

and 2021

Consolidated Statements of Shareholders’ Equity for the Years Ended December 31, 2023, 2022 and 2021
Consolidated Statements of Cash Flows for the Years Ended December 31, 2023, 2022 and 2021
Notes to Consolidated Financial Statements for the Years Ended December 31, 2023, 2022 and 2021

Page

111
113

114
115
116
117

(b)

(c)

Financial  Statements  Schedules.  Financial  Statement  Schedules  have  been  omitted  because  of  the
absence of conditions under which they are required or because the required information, where material,
is shown in the financial statements or notes.

Other Exhibits.  The  Exhibit  Index  immediately  preceding  the  signature  page  of  this  Annual  Report  on
Form 10-K is incorporated herein by reference.

Item 16.  Form 10-K Summary

Not applicable.

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INDEX TO CONSOLIDATED FINANCIAL STATEMENTS
FOR THE YEARS ENDED DECEMBER 31, 2023, 2022 AND 2021

Report of Independent Registered Public Accounting Firm - KPMG Accountants N.V., Amstelveen, The

Netherlands (PCAOB ID 1012)

Consolidated Balance Sheets as of December 31, 2023 and 2022
Consolidated Statements of Operations and Comprehensive Loss for the Years Ended December 31, 2023, 2022

and 2021

Consolidated Statements of Shareholders’ Equity for the Years Ended December 31, 2023, 2022 and 2021
Consolidated Statements of Cash Flows for the Years Ended December 31, 2023, 2022 and 2021
Notes to Consolidated Financial Statements

Page

111
113

114
115
116
117

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Report of Independent Registered Public Accounting Firm

To the Shareholders and Board of Directors
uniQure N.V.:

Opinions on the Consolidated Financial Statements and Internal Control Over Financial Reporting

We have audited the accompanying consolidated balance sheets of uniQure N.V. and subsidiaries (the Company) as

of December 31, 2023 and 2022, the related consolidated statements of operations and comprehensive loss, shareholders’
equity, and cash flows for each of the years in the three-year period ended December 31, 2023, and the related notes
(collectively, the consolidated financial statements). We also have audited the Company’s internal control over financial
reporting as of December 31, 2023, based on criteria established in Internal Control – Integrated Framework (2013) issued
by the Committee of Sponsoring Organizations of the Treadway Commission.

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the
financial position of the Company as of December 31, 2023 and 2022, and the results of its operations and its cash flows
for  each  of  the  years  in  the  three  year-period  ended  December  31,  2023,  in  conformity  with  U.S.  generally  accepted
accounting principles. Also in our opinion, the Company maintained, in all material respects, effective internal control over
financial  reporting  as  of  December  31,  2023  based  on  criteria  established  in  Internal  Control  –  Integrated  Framework
(2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

Basis for Opinions

The Company’s management is responsible for these consolidated financial statements, 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  consolidated  financial  statements  and  an  opinion  on  the
Company’s internal control over financial reporting based on our audits. We are a public accounting firm registered with
the  Public  Company  Accounting  Oversight  Board  (United  States)  (PCAOB)  and  are  required  to  be  independent  with
respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the
Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan
and  perform  the  audits  to  obtain  reasonable  assurance  about  whether  the  consolidated  financial  statements  are  free  of
material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was
maintained in all material respects.

Our audits of the consolidated financial statements included performing procedures to assess the risks of material
misstatement  of  the  consolidated  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 consolidated 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  consolidated  financial
statements. Our audit of internal control over financial reporting included obtaining an understanding of internal control
over  financial  reporting,  assessing  the  risk  that  a  material  weakness  exists,  and  testing  and  evaluating  the  design  and
operating  effectiveness  of  internal  control  based  on  the  assessed  risk.  Our  audits  also  included  performing  such  other
procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our
opinions.

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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.

Critical Audit Matters

Critical audit matters are matters arising from the current period audit of the consolidated 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  consolidated  financial  statements  and  (2)  involved  our  especially  challenging,  subjective,  or
complex judgments. We determined that there are no critical audit matters.

/s/ KPMG Accountants N.V.

We have served as the Company’s auditor since 2019.

Amstelveen, the Netherlands
February 28, 2024

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uniQure N.V.

CONSOLIDATED BALANCE SHEETS

December 31, 
2023

December 31, 
2022

(in thousands, except share and per share amounts)

Current assets
Cash and cash equivalents
Current investment securities
Accounts receivable and contract asset
Inventories, net
Prepaid expenses
Other current assets and receivables
Total current assets
Non-current assets
Property, plant and equipment, net
Non-current investment securities
Operating lease right-of-use assets
Intangible assets, net
Goodwill
Deferred tax assets, net
Other non-current assets
Total non-current assets
Total assets
Current liabilities
Accounts payable
Accrued expenses and other current liabilities
Current portion of contingent consideration
Current portion of operating lease liabilities
Total current liabilities
Non-current liabilities
Long-term debt
Liability from royalty financing agreement
Operating lease liabilities, net of current portion
Contingent consideration, net of current portion
Deferred tax liability, net
Other non-current liabilities
Total non-current liabilities
Total liabilities
Commitments and contingencies
Shareholders' equity
Ordinary shares, €0.05 par value: 80,000,000 shares authorized as of
December 31, 2023 and December 31, 2022 and 47,833,830 and 46,968,032
ordinary shares issued and outstanding as of December 31, 2023 and
December 31, 2022, respectively
Additional paid-in-capital
Accumulated other comprehensive loss
Accumulated deficit
Total shareholders' equity
Total liabilities and shareholders' equity

$

$

$

$

$

$

$

241,360
376,532
4,193
12,024
15,089
2,655
651,853

46,548
—
28,789
60,481
26,379
12,276
5,363
179,836
831,689

6,586
30,534
28,211
8,344
73,675

101,749
394,241
28,316
14,795
7,543
3,700
550,344
624,019

228,012
124,831
102,376
6,924
11,817
2,814
476,774

50,532
39,984
32,726
58,778
25,581
14,528
6,061
228,190
704,964

10,984
30,571
25,982
8,382
75,919

102,791
—
31,719
9,334
8,257
935
153,036
228,955

2,883
1,148,749
(53,553)
(890,409)
207,670
831,689

$

2,838
1,113,393
(58,291)
(581,931)
476,009
704,964

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

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CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS AND INCOME

uniQure N.V.

License revenues
Contract manufacturing revenues
Collaboration revenues
Total revenues
Operating expenses:
Cost of license revenues
Cost of contract manufacturing revenues
Research and development expenses
Selling, general and administrative expenses
Total operating expenses
Other income
Other expense
(Loss) / income from operations
Interest income
Interest expense
Foreign currency (losses) / gains, net
Other non-operating gains / (losses), net
(Loss) / income before income tax (expense) / benefit
Income tax (expense) / benefit
Net (loss) / income
Other comprehensive income / (loss):
Foreign currency translation gains / (losses), net
Defined benefit pension loss, net of taxes
Total comprehensive (loss) / income
Earnings per ordinary share - basic
Basic net (loss) / income per ordinary share
Earnings per ordinary share - diluted
Diluted net (loss) / income per ordinary share
Weighted average shares - basic
Weighted average shares - diluted

2023

Year ended December 31, 
2022
(in thousands, except share and per share amounts)
517,400
$
—
6,602
524,002

100,000 $
1,717
4,766
106,483

2,758
10,835
2,250
15,843

2021

$

(65)
(13,563)
(214,864)
(74,591)
(303,083)
6,059
(1,690)
(282,871)
19,562
(41,557)
(1,691)
—
(306,557) $
(1,921)
(308,478) $

(1,254)
(2,089)
(197,591)
(55,059)
(255,993)
7,171
(820)
(143,159)
609
(11,704)
23,235
2,760
(128,259)$
1,470
(126,789)$

(24,976)
—
(143,548)
(56,290)
(224,814)
12,306
(876)
310,618
162
(7,474)
29,660
(160)
332,806
(3,217)
329,589

6,874
(2,136)
(303,740) $

(29,435)
—

(156,224)$

(38,763)
—
290,826

(6.47) $

(2.71)$

7.17

(6.47) $

(2.71)$

47,670,986
47,670,986

46,735,045
46,735,045

7.04
45,986,467
46,840,972

$

$

$

$

$

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

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uniQure N.V.

CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY

Ordinary shares

Additional
paid-in

Accumulated
other

comprehensive Accumulated 

No. of shares       Amount             capital            income / (loss)     

deficit

Total
shareholders’
equity

Balance at December 31, 2020
Income for the period
Other comprehensive loss
Issuance of ordinary shares
Income tax benefit of past share issuance
cost
Exercises of share options
Restricted and performance share units
distributed during the period
Share-based compensation expense
Issuance of ordinary shares relating to
employee stock purchase plan
Balance at December 31, 2021
Loss for the period
Other comprehensive loss
Income tax benefit of past share issuance
cost
Exercises of share options
Restricted and performance share units
distributed during the period
Share-based compensation expense
Issuance of ordinary shares relating to
employee stock purchase plan
Balance at December 31, 2022
Loss for the period
Other comprehensive income, net
Exercises of share options
Restricted and performance share units
distributed during the period
Share-based compensation expense
Issuance of ordinary shares relating to
employee stock purchase plan
Balance at December 31, 2023

(in thousands, except share and per share amounts)
$

44,777,799
—
—
921,730

$ 2,711
—
—
55

$ 1,016,018
—
—
29,509

9,907
—
(38,763)

$ (784,731) $ 243,905
329,589
(38,763)
29,564

329,589
—

241,496

352,886
—

15

21
—

3,047
2,638

(21)
25,635

—

—
—

—

—
—

3,047
2,653

—
25,635

4,724
46,298,635
—
—

—
$ 2,802
—
—

146
$ 1,076,972
—
—

—
152,356

505,799
—

—
8

27
—

808
1,272

(27)
34,204

11,242
46,968,032
—
—
14,070

1
$ 2,838
—
—
1

164
$ 1,113,393
—
—
129

$

$

—

—

146
(28,856) $ (455,142) $ 595,776
(126,789)
(126,789)
(29,435)
—

—
(29,435)

—
—

—
—

—
—

—
—

808
1,280

—
34,204

—

—

165
(58,291) $ (581,931) $ 476,009
(308,478)
(308,478)
4,738
—
130
—

—
4,738
—

832,530
—

43
—

(43)
35,093

—
—

—
—

—
35,093

19,198
47,833,830

1
$ 2,883

177
$ 1,148,749

$

—

178
(53,553) $ (890,409) $ 207,670

—

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

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uniQure N.V.

CONSOLIDATED STATEMENTS OF CASH FLOWS

Cash flows from operating activities
Net (loss) / income
Adjustments to reconcile net (loss) / income to net cash (used in) / generated
from operating activities:

Depreciation, amortization and impairment
Amortization of premium/discount on investment securities
Share-based compensation expense
Royalty financing agreement interest expense
Deferred tax expense / (income)
Changes in fair value of contingent consideration and derivative financial
instrument, net
Unrealized foreign exchange gains, net
Other items, net

Changes in operating assets and liabilities:

Accounts receivable, prepaid expenses, and other current assets and
receivables
Contract asset related to CSL Behring milestone payments
Inventories
Accounts payable
Accrued expenses, other liabilities, and operating leases
Contingent consideration milestone payment

Net cash (used in) / generated from operating activities
Cash flows from investing activities
Investment in debt securities
Proceeds on maturity of debt securities
Purchases of property, plant, and equipment
Acquisition of uniQure France SAS, net of cash acquired
Net cash used in investing activities
Cash flows from financing activities
Proceeds from issuance of ordinary shares
Share issuance costs from issuance of ordinary shares
Proceeds from royalty financing agreement
Payment of debt issuance costs
Repayment of debt acquired through acquisition of uniQure France SAS
Proceeds from loan increment, net of debt issuance costs
Proceeds from issuance of ordinary shares related to employee stock option
and purchase plans
Contingent consideration milestone payment
Net cash generated from financing activities
Currency effect on cash, cash equivalents and restricted cash
Net increase / (decrease) in cash, cash equivalents and restricted cash
Cash, cash equivalents and restricted cash at beginning of period
Cash, cash equivalents and restricted cash at the end of period
Cash and cash equivalents
Restricted cash related to leasehold and other deposits
Total cash, cash equivalents and restricted cash
Supplemental cash flow disclosures:
Cash paid for interest
Non-cash decrease in accounts payables and accrued expenses and other
current liabilities related to purchases of property, plant, and equipment

2023

Year ended December 31, 
2022
(in thousands)

2021

$ (308,478)

$ (126,789)

$ 329,589

11,900
(10,917)
35,093
26,933
1,921

15,895
(2,206)
4,721

(1,323)
100,000
(6,740)
(4,169)
(6,645)
(1,914)
(145,929)

(366,439)
167,907
(7,154)
-
(205,686)

-
-
374,350
(4,288)
-
-

8,537
-
34,204
-
(1,470)

4,320
(22,083)
1,605

(4,083)
(45,000)
(6,924)
9,238
3,385
-
(145,060)

(163,146)
-
(17,688)
(1,900)
(182,734)

-
-
-
-
-
-

7,299
-
25,635
-
3,210

6,843
(31,335)
(2,800)

(3,959)
(55,000)
-
(727)
9,204
-
287,959

-
-
(17,438)
(49,949)
(67,387)

30,899
(1,334)
-
-
(1,572)
64,067

308
(7,649)
362,721
2,265
13,371
231,173
$ 244,544
$ 241,360
3,184
$ 244,544

1,445
-
1,445
(1,831)
(328,180)
559,353
$ 231,173
$ 228,012
3,161
$ 231,173

2,798
-
94,858
(3,757)
311,673
247,680
$ 559,353
$ 556,256
3,097
$ 559,353

$ (16,878)

$

(513)

$

$

(9,247)

(964)

$

$

(6,539)

1,488

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

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uniQure N.V.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1.

General business information

uniQure  (the  “Company”)  was  incorporated  on  January  9,  2012  as  a  private  company  with  limited  liability
(besloten vennootschap met beperkte aansprakelijkheid) under the laws of the Netherlands. The Company is a leader in the
field of gene therapy and seeks to deliver to patients suffering from rare and other devastating diseases single treatments
with  potentially  curative  results.  The  Company’s  business  was  founded  in  1998  and  was  initially  operated  through  its
predecessor company, Amsterdam Molecular Therapeutics Holding N.V (“AMT”). In 2012, AMT undertook a corporate
reorganization, pursuant to which uniQure B.V. acquired the entire business and assets of AMT and completed a share-for-
share exchange with the shareholders of AMT. Effective February 10, 2014, in connection with its initial public offering,
the Company converted into a public company with limited liability (naamloze vennootschap) and changed its legal name
from uniQure B.V. to uniQure N.V.

The Company is registered in the trade register of the Dutch Chamber of Commerce (Kamer van Koophandel) in
Amsterdam, the Netherlands under number 54385229. The Company’s headquarters are in Amsterdam, the Netherlands,
and its registered office is located at Paasheuvelweg 25, Amsterdam 1105 BP, the Netherlands and its telephone number is
+31 20 240 6000. The Company’s website address is www.uniqure.com.

The  Company’s  ordinary  shares  are  listed  on  the  Nasdaq  Global  Select  Market  and  trade  under  the  symbol

“QURE.”

2.

Summary of significant accounting policies

2.1         Basis of preparation

The  Company  prepared  its  consolidated  financial  statements  in  compliance  with  generally  accepted  accounting
principles  in  the  United  States  (“U.S.  GAAP”).  Any  reference  in  these  notes  to  applicable  guidance  is  meant  to  refer  to
authoritative U.S. GAAP as found in the Accounting Standards Codification (“ASC”) and Accounting Standards Update
(“ASU”) of the Financial Accounting Standards Board (“FASB”).

The  consolidated  financial  statements  have  been  prepared  under  the  historical  cost  convention,  except  for

derivative financial instruments and contingent consideration, which are recorded at fair value through profit or loss.

The consolidated financial statements are presented in United States (“U.S.”) dollars ($), except where otherwise
indicated. Transactions denominated in currencies other than U.S. dollars are presented in the transaction currency with the
U.S. dollar amount included in parenthesis, converted at the foreign exchange rate as of the transaction date.

The  consolidated  financial  statements  presented  have  been  prepared  on  a  going  concern  basis  based  on  the
Company’s  cash  and  cash  equivalents  as  of  December  31,  2023  and  the  Company’s  budgeted  cash  flows  for  the  twelve
months following the issuance date.

2.2         Use of estimates

The preparation of consolidated financial statements, in conformity with U.S. GAAP and Securities and Exchange
Commission  (“SEC”)  rules  and  regulations,  requires  management  to  make  estimates  and  assumptions  that  affect  the
reported  amounts  of  assets  and  liabilities,  disclosure  of  contingent  assets  and  liabilities  at  the  date  of  the  consolidated
financial  statements  and  reported  amounts  of  revenues  and  expenses  during  the  reporting  period.  Estimates  and
assumptions are primarily made in relation to contingent consideration related to the acquisition of uniQure France SAS,
the treatment of revenue to be recognized under the commercialization and license agreement entered into (“CSL Behring
Agreement”) between the Company and CSL Behring LLC (“CSL Behring”), and the assessment of a valuation allowance
on the Company’s deferred tax assets in the Netherlands. If actual results differ from the Company’s estimates, or to the
extent these estimates are adjusted in future periods, the Company’s results of operations could either benefit from, or be
adversely affected by, any such change in estimate.

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2.3         Accounting policies

The principal accounting policies applied in the preparation of these consolidated financial statements are set out

below. These policies have been consistently applied to all the years presented, unless otherwise stated.

2.3.1      Consolidation

The  consolidated  financial  statements  comprise  the  financial  statements  of  the  Company  and  its  subsidiaries.
Subsidiaries are all entities over which the Company has a controlling financial interest either through variable interest or
through voting interest. Currently, the Company has no involvement with variable interest entities.

Inter-company  transactions,  balances,  income,  and  expenses  on  transactions  between  uniQure  entities  are
eliminated in consolidation. Profits and losses resulting from inter-company transactions that are recognized in assets are
also  eliminated.  Accounting  policies  of  subsidiaries  have  been  changed  where  necessary  to  ensure  consistency  with  the
policies adopted by the Company.

2.3.2      Current versus non-current classification

The Company presents assets and liabilities in the consolidated balance sheets based on current and non-current

classification.

The term current assets is used to designate cash and other assets, or resources commonly identified as those that
are reasonably expected to be realized in cash or sold or consumed during the normal operating cycle of the business. The
Company’s normal operating cycle is twelve months. All other assets are classified as non-current.

The term current liabilities is used principally to designate obligations whose liquidation is reasonably expected to
require  the  use  of  existing  resources  properly  classifiable  as  current  assets,  or  the  creation  of  other  current  liabilities.
Current liabilities are expected to be settled in the normal operating cycle. The Company classifies all other liabilities as
non-current.

Deferred tax assets and liabilities are classified as non-current assets and liabilities, if any.

2.3.3      Foreign currency translation

The functional currency of the Company and each of its entities (except for uniQure Inc. and Corlieve AG) is the
euro (€). This represents the currency of the primary economic environment in which the entities operate. The functional
currency of uniQure Inc. is the U.S. dollar ($) and the functional currency of Corlieve AG is the Swiss Franc (CHF). The
consolidated financial statements are presented in U.S. dollars.

Foreign  currency  transactions  are  measured  and  recorded  in  the  functional  currency  using  the  exchange  rates
prevailing  at  the  dates  of  the  transactions.  Foreign  exchange  gains  and  losses  resulting  from  the  settlement  of  such
transactions and from the re-measurement of monetary assets and liabilities denominated in foreign currencies at exchange
rates prevailing at balance sheet date are recognized in profit and loss.

Upon consolidation, the assets and liabilities of foreign operations are translated into the functional currency of
the  shareholding  entity  at  the  exchange  rates  prevailing  at  the  balance  sheet  date;  items  of  income  and  expense  are
translated  at  monthly  average  exchange  rates.  The  consolidated  assets  and  liabilities  are  translated  from  uniQure  N.V.’s
functional currency, euro, into the reporting currency U.S. dollar at the exchange rates prevailing at the balance sheet date;
items of income and expense are translated at monthly average exchange rates. Issued capital and additional paid-in capital
are translated at historical rates with differences to the balance sheet date rate recorded as translation adjustments in other
comprehensive  income  /  loss.  The  exchange  differences  arising  on  translation  for  consolidation  are  recognized  in
“accumulated  other  comprehensive  income  /  loss”.  On  disposal  of  a  foreign  operation,  the  component  of  other
comprehensive income / loss relating to that foreign operation is recognized in profit or loss.

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2.3.4      Fair value measurement

The Company measures certain assets and liabilities at fair value, either upon initial recognition or for subsequent
accounting or reporting. ASC 820, Fair Value Measurements and Disclosures requires disclosure of methodologies used in
determining the reported fair values and establishes a hierarchy of inputs used when available. The three levels of the fair
value hierarchy are described below:

● Level 1 - Valuations based on unadjusted quoted prices in active markets for identical assets or liabilities that

the Company can access at the measurement date.

● Level 2 - Valuations based on quoted prices for similar assets or liabilities in markets that are not active or

models for which the inputs are observable, either directly or indirectly.

● Level 3 - Valuations that require inputs that reflect the Company’s own assumptions that are both significant

to the fair value measurement and are unobservable.

To the extent that valuation is based on models or inputs that are less observable or unobservable in the market,
the determination of fair value requires more judgment. Accordingly, the degree of judgment exercised by the Company in
determining fair value is greatest for instruments categorized as Level 3. A financial instrument’s level within the fair value
hierarchy is based on the lowest level of any input that is significant to the fair value measurement.

Items measured at fair value on a recurring basis include financial instruments and contingent consideration (Note
7, “Fair value measurement”). The carrying amount of cash and cash equivalents, accounts receivable from licensing and
collaboration  partners,  other  assets,  accounts  payable,  accrued  expenses  and  other  current  liabilities  reflected  in  the
consolidated balance sheets approximate their fair values due to their short-term maturities.

2.3.5

uniQure France SAS transaction

On  June  21,  2021,  we  entered  into  a  share  and  purchase  agreement  (“SPA”)  to  acquire  all  of  the  outstanding
ordinary  shares  of  uniQure  France  SAS  (formerly  Corlieve  Therapeutics  SAS),  a  privately  held  French  gene  therapy
company  (“uniQure  France  SAS  Transaction”).  On  July  30,  2021  (“Acquisition  Date”),  the  Company  acquired  uniQure
France SAS. The Company evaluated the uniQure France SAS transaction as to whether or not the transaction should be
accounted for as a business combination or asset acquisition. Refer to Note 3 “uniQure France SAS transaction” for further
detail.

a. Goodwill

Goodwill  represents  the  excess  of  the  fair  value  of  the  consideration  transferred  over  the  fair  value  of  the  net
assets assumed in a business combination. Goodwill is not amortized but is evaluated for impairment on an annual basis
and between annual tests if the Company becomes aware of any events occurring or changes in circumstances that would
more likely than not reduce the fair value of the reporting unit below its carrying amount. As of December 31, 2023, 2022
and 2021, the Company has not recognized any impairment charges related to goodwill.

Refer to Note 3 “uniQure France SAS transaction” for further detail.

b. Acquired research and development

The Company identified various licenses that combined with the results of the research and development activities
conducted in relation to its target candidate for the treatment of temporal lobe epilepsy (“AMT-260”) since incorporation of
uniQure  France  SAS  in  2019  constitute  an  In-process  research  and  development  intangible  asset  (“IPR&D  Intangible
Asset”).  The  IPR&D  Intangible  Asset  is  considered  to  be  indefinite-lived  until  the  completion  or  abandonment  of  the
associated research and development efforts and is not amortized. If and when development is completed, which generally
occurs  when  regulatory  approval  to  market  a  product  is  obtained,  the  associated  asset  would  be  deemed  finite-lived  and
would then be amortized based on its respective useful life at that point in time. For the years ended December 31, 2023,
2022 and 2021, the Company has not recognized any impairment charges related to the IPR&D Intangible Asset.

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In case of abandonment, the IPR&D Intangible Asset will be written-off. In accordance with ASC 350, Intangibles
– Goodwill and Other, the Company tests indefinite-lived intangible assets for impairment on an annual basis and between
annual tests if the Company becomes aware of any events occurring or changes in circumstances that would indicate the
fair value of the IPR&D Intangible Asset is below its carrying amount.

Refer to Note 3 “uniQure France SAS transaction” for further detail.

c. Contingent consideration

Each reporting period, the Company revalues the contingent consideration obligations associated with the uniQure
France SAS transaction to their fair value and records changes in the fair value within research and development expenses.
Changes  in  contingent  consideration  obligations  result  from  changes  in  assumptions  regarding  the  probabilities  of
achieving the relevant milestones, or probability of success (“POS”), the estimated timing of achieving such milestones,
and the interest rate to discount the payments. Payments of portions of contingent consideration initially recorded as of the
acquisition  date  are  recorded  as  cash  flows  from  financing  activities,  and  payments,  or  the  portion  of  the  milestone
payments  representing  changes  in  the  fair  value  of  contingent  consideration  subsequent  to  the  initial  recognition  are
recorded as cash flows from operating activities.

Refer to Note 3 “uniQure France SAS transaction” for further detail.

2.3.6      Notes to the consolidated statements of cash flows

The consolidated statements of cash flows have been prepared using the indirect method. The cash disclosed in
the  consolidated  statements  of  cash  flows  is  comprised  of  cash  and  cash  equivalents  and  restricted  cash.  Cash  and  cash
equivalents include bank balances, demand deposits and other short-term highly liquid investments (with maturities of less
than three months at the time of purchase) that are readily convertible into a known amount of cash and are subject to an
insignificant risk of fluctuation in value.

Cash  flows  denominated  in  foreign  currencies  have  been  translated  at  the  average  exchange  rates.  Exchange
differences, if any, affecting cash and cash equivalents are shown separately in the consolidated statements of cash flows.
Interest paid and received, and income taxes are included in net cash (used in) provided by operating activities.

2.3.7      Segment information

Operating  segments  are  identified  as  a  component  of  an  enterprise  for  which  separate  discrete  financial
information  is  available  for  evaluation  by  the  chief  operating  decision  maker,  or  decision-making  group,  in  making
decisions  on  how  to  allocate  resources  and  assess  performance.  The  Company  views  its  operations  and  manages  its
business  as  one  operating  segment,  which  comprises  the  discovery,  development,  and  commercialization  of  innovative
gene therapies.

2.3.8      Net (loss) / income per share

The Company follows the provisions of ASC 260, Earnings Per Share. In accordance with these provisions, net
(loss) / income per share is calculated by dividing net (loss) / income by the weighted average number of ordinary shares
outstanding during the period.

Diluted net (loss) / income per share reflects the dilution that would occur if share options or warrants to issue
ordinary shares were exercised, performance or restricted share units were distributed, or shares under the employee share
purchase plan were issued. However, potential ordinary shares are excluded if their effect is anti-dilutive.

Refer to Note 21 “Basic and diluted earnings per share” for further information.

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2.3.9      Impairment of long-lived assets

Long-lived  assets,  which  include  property,  plant,  and  equipment  and  finite-lived  intangible  assets,  are  reviewed
for impairment whenever events or changes in circumstances indicate that the carrying value of an asset or asset group may
not be recoverable. Right-of-use assets are also reviewed for impairment in accordance with ASC 360, Property, Plant, and
Equipment. The recoverability of the carrying value of an asset or asset group depends on the successful execution of the
Company’s business initiatives and its ability to earn sufficient returns on approved products and product candidates. When
such events or changes in circumstances occur, the Company assesses recoverability by determining whether the carrying
value of such assets will be recovered through the undiscounted expected future cash flows. If the future undiscounted cash
flows are less than the carrying amount of these assets, the Company recognizes an impairment loss based on the excess of
the carrying value over the fair value of the assets. Fair value is determined through various valuation techniques, including
discounted cash flow models, quoted market values, and third-party independent appraisals, as considered necessary.

Refer to Note 2.3.5 “uniQure France SAS transaction” for information on impairment testing related to goodwill

and acquired research and development intangible assets.

2.3.10    Investment securities

Investment  securities  consist  of  sovereign  debt  with  residual  maturities  of  less  than  12  months  (presented  as
current)  and  beyond  (presented  as  non-current).  The  Company  classifies  these  securities  as  held-to-maturity.  Held-to-
maturity securities are those securities in which the Company has the ability and intent to hold the security until maturity.
Held-to-maturity securities are recorded at amortized cost, adjusted for applicable accrued interest and the amortization or
accretion of premiums or discounts. Premiums and discounts are amortized or accreted over the term of the related held-to-
maturity security as an adjustment to yield using the effective interest rate method.

Investments securities with original maturities of less than three months when purchased are presented within cash

and cash equivalents (December 31, 2023: nil, December 31, 2022: $21.2 million).

A decline in the market value of any investment security below cost that is deemed to be other than temporary
results in a reduction in the carrying amount to fair value. The impairment is charged to operations and a new cost base for
the security is established. Other-than-temporary impairment charges are included in interest and other income (expense),
net. Interest income is recognized when earned.

Refer to Note 6 “Investment securities” for further information.

2.3.11    Accounts receivable

Accounts receivables include amounts due from services provided to the Company’s licensing and collaboration

partners as well as unconditional rights to consideration from its licensing and collaboration partners.

2.3.12    Inventories

The Company started producing commercial materials in April 2022 to supply CSL Behring in accordance with
the June 2020 Development and Commercial Supply Agreement between the Company and CSL Behring. From this date
onwards, the Company presents the costs associated with the aforementioned activities as cost of contract manufacturing.
Refer to Note 5 “Collaboration arrangements and concentration of credit risk” for further detail.

Per  ASC  330,  Inventory,  inventory  is  stated  at  the  lower  of  cost  or  estimated  net  realizable  value,  on  a  first-in,
first-out basis. The Company capitalizes raw materials to the extent these can be used in contract manufacturing for CSL
Behring. The Company uses standard costs, approximating average costs to determine its cost basis for work in progress
and  finished  goods.  The  Company’s  assessment  of  recoverability  value  requires  the  use  of  estimates  regarding  the  net
realizable value of its inventory balances, including an assessment of excess or obsolete inventory. As applicable, write-
downs resulting from adjustments to net realizable value will be recorded to cost of contract manufacturing.

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2.3.13    Prepaid expenses

Prepaid  expenses  are  amounts  paid  in  the  period,  for  which  the  benefit  has  not  been  realized,  and  include
payments made for insurance and research and clinical contracts. The related expense will be recognized in the subsequent
period as incurred.

2.3.14 Other (non) current assets

Deposits paid are either presented as other current assets or as other non-current assets based on duration of the

underlying contractual arrangement. Deposits are classified as restricted cash and primarily relate to facility leases.

Contract  assets  are  presented  in  current  assets  or  as  non-current  assets  based  on  the  timing  of  the  right  to

consideration.

2.3.15    Property, plant, and equipment

Property,  plant,  and  equipment  is  comprised  mainly  of  laboratory  equipment,  leasehold  improvements,
construction-in-progress (“CIP”) and office equipment. All property, plant and equipment is stated at cost less accumulated
depreciation.  CIP  consists  of  capitalized  expenses  associated  with  construction  of  assets  not  yet  placed  into  service.
Depreciation commences on CIP once the asset is placed into service based on its useful life determined at that time.

Maintenance and repairs that do not improve or extend the lives of the respective assets are expensed as incurred.
Upon disposal, the related cost and accumulated depreciation is removed from the accounts and any resulting gain or loss
on the transaction is recognized in the consolidated statements of operations and comprehensive loss.

Depreciation  is  calculated  using  the  straight-line  method  over  the  estimated  useful  lives  of  the  assets  (or  in  the

case of leasehold improvements a shorter lease term), which are as follows:

·    Leasehold improvements
·    Laboratory equipment
·    Office equipment

    Between 10 – 15 years

5 years
Between 3 – 5 years

2.3.16    Leases

The Company records leases in accordance with ASC 842, Leases and determines if an arrangement is a lease at
inception.  Operating  lease  right-of-use  assets  and  lease  liabilities  are  initially  recognized  based  on  the  present  value  of
future minimum lease payments over the lease term at commencement date calculated using an incremental borrowing rate
applicable  to  the  lease  asset  unless  the  implicit  rate  is  readily  available.  Lease  terms  may  include  options  to  extend  or
terminate the lease when it is reasonably certain that the Company will exercise that option. Leases with a term of twelve
months or less are not recognized on the consolidated balance sheets.

 The Company recognizes lease cost on a straight-line basis and presents these costs as operating expenses within
the  Consolidated  statements  of  operations  and  comprehensive  income  /  (loss).  The  Company  presents  lease  payments
within cash flows from operations within the Consolidated statements of cash flows.

2.3.17    Accounts payable and accrued expenses

Accounts  payables  are  invoiced  amounts  related  to  obligations  to  pay  for  goods  or  services  that  have  been
acquired in the ordinary course of business from suppliers. Accounts payables are recognized at the amounts invoiced by
suppliers.

Accrued expenses are recognized for goods or services that have been acquired in the ordinary course of business.

Contract liabilities, if any, are presented in accrued expenses.

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2.3.18    Long-term debt

Long-term debt is initially recognized at cost and presented net of original issue discount or premium and debt
issuance costs on the consolidated balance sheets. Amortization of debt discount and debt issuance costs is recognized as
interest expense in profit and loss over the period of the debt, using the effective interest rate method.

2.3.19   Pensions and other post-retirement benefit plans

The  Company  has  a  defined  contribution  pension  plan  for  all  employees  at  its  Amsterdam  facility  in  the
Netherlands, which is funded by the Company through payments to an insurance company, with individual accounts for
each participants’ assets. The Company has no legal or constructive obligation to pay further contributions if the plan does
not hold sufficient assets to pay all employees the benefits relating to services rendered in the current and prior periods.
The contributions are expensed as incurred. Prepaid contributions are recognized as an asset to the extent that a cash refund
or a reduction in the future payments is available.

In 2016, the Company adopted a qualified 401(k) Plan for all employees located in the United States. The 401(k)
Plan  offers  both  a  pre-tax  and  post-tax  (Roth)  component.  Employees  may  contribute  up  to  the  IRS  statutory  limit  each
calendar  year.  The  Company  matches  $0.50  for  every  $1.00  contributed  to  the  plan  by  participants  up  to  6%  of  base
compensation. Employer contributions are recognized as they are contributed, as long as the employee is rendering services
in that period. If employer contributions are made in periods after an individual retires or terminates, the estimated cost is
accrued during the employee’s service period.

The Company maintains defined benefit plans for its Swiss employees, including retirement benefit plans required
by  applicable  local  law.  The  Company  accounts  for  pension  assets  and  liabilities  in  accordance  with  ASC  715,
Compensation  -  Retirement  Benefits,  which  requires  the  recognition  of  the  funded  status  of  pension  plans  in  the
Company’s  consolidated  balance  sheet.  The  liability  in  respect  to  defined  benefit  pension  plans  is  the  projected  benefit
obligation calculated annually by independent actuaries using the projected unit credit method.

The projected benefit obligation as of December 31, 2023 represents the actuarial present value of the estimated
future payments required to settle the obligation that is attributable to employee services rendered before that date. Service
cost is reported in research and development and general and administrative expenses. All other components of net period
costs are reported in interest expense in the consolidated statement of operations and comprehensive loss. Plan assets are
recorded at their fair value. Gains or losses arising from plan curtailments or settlements are accounted for at the time they
occur.  Actuarial  gains  and  losses  arising  from  differences  between  the  actual  and  the  expected  return  on  plan  assets  are
recognized in accumulated other comprehensive income (loss).

2.3.20    Share-based compensation

The  Company  accounts  for  its  share-based  compensation  awards  in  accordance  with  ASC  718,  Compensation-

Stock Compensation.

All  the  Company’s  share-based  compensation  plans  for  employees  are  equity-classified.  ASC  718  requires  all
share-based  compensation  to  employees,  including  grants  of  employee  options,  restricted  share  units,  performance  share
units  and  modifications  to  existing  instruments,  to  be  recognized  in  the  consolidated  statements  of  operations  and
comprehensive  loss  based  on  their  grant-date  fair  values,  net  of  an  estimated  forfeiture  rate,  over  the  requisite  service
period. Forfeitures of employee options are recognized as they occur. Compensation expense related to Performance Share
Units is recognized when the Company considers achievement of the milestones to be probable. The requirements of ASC
718 are also applied to nonemployee share-based payment transactions except for specific guidance on certain inputs to an
option-pricing model and the attribution of cost.

The Company uses a Hull & White option model to determine the fair value of option awards. The model captures
early exercises by assuming that the likelihood of exercises will increase when the share-price reaches defined multiples of
the strike price. This analysis is performed over the full contractual term.

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2.3.21    Revenue recognition

The Company primarily generates revenue from its commercialization and license agreement with CSL Behring.
The  Company  generated  revenue  from  services  provided  to  Bristol-Myers  Squibb  (“BMS”)    until    February  21,  2023
(“Termination Date”).

CSL Behring collaboration

On  June  24,  2020  (“Signing  Date”),  the  Company  entered  into  a  commercialization  and  license  agreement
pursuant  to  which  CSL  Behring  received  exclusive  global  rights  to  etranacogene  dezaparvovec  (“Product”).  On  May  6,
2021,  the  CSL  Behring  Agreement  became  fully  effective  (“Closing”).  The  Company  concluded  that  CSL  Behring  is  a
customer in accordance with ASC 606, Revenue from Contracts with Customers and identified two material performance
obligations related to the CSL Behring Agreement:

(i) Sale of the exclusive global rights to etranacogene dezaparvovec, a gene therapy for patients with hemophilia

B (the “Product”) (“License Sale”); and

(ii) Generate  information  to  support  the  regulatory  approval  of  the  current  and  next  generation  manufacturing
process  of  the  Product  and  to  provide  any  such  information  generated  to  CSL  Behring  (“Manufacturing
Development”).

These performance obligations were considered distinct from one another, as CSL Behring can benefit from the
identified service either on its own or together with other resources that are readily available to CSL Behring, and as the
performance  obligations  are  separately  identifiable  from  other  performance  obligations  in  the  CSL  Behring  Agreement.
The Company continued to develop the Product between the Signing Date and Closing and performed certain reimbursable
activities  to  fulfill  the  transfer  of  the  global  rights  (“Additional  Covenants”  and  together  with  the  License  the  “License
Sale”). The Additional Covenants are not considered distinct from the performance obligation to sell the license to CSL
Behring  as  CSL  Behring  could  not  benefit  from  the  Additional  Covenants  on  their  own,  or  have  these  activities  be
performed with readily available resources.

Refer to Note 5 “Collaboration arrangements and concentration of credit risk” for further detail.

Bristol-Myers Squib collaboration

The  Company  initially  entered  into  collaboration,  research,  and  license  agreements  with  BMS  in  2015  (“BMS

CLA”) and amended them in 2020 (“amended BMS CLA”). The agreement terminated on February 21, 2023.

The Company provided pre-clinical research activities ("Collaboration Revenue") under the amended BMS CLA.

2.3.22    Other income, other expense

The  Company  receives  certain  government  and  regional  grants,  which  support  its  research  efforts  in  defined
projects,  and  include  contributions  towards  the  cost  of  research  and  development.  These  grants  generally  provide  for
reimbursement  of  approved  costs  incurred  as  defined  in  the  respective  grants  and  are  deferred  and  recognized  in  the
statements of operations and comprehensive loss over the period necessary to match them with the costs they are intended
to  compensate,  when  it  is  probable  that  the  Company  has  complied  with  any  conditions  attached  to  the  grant  and  will
receive the reimbursement.

The  Company’s  other  income  also  consists  of  employee  retention  credits  received  under  the  U.S.  Coronavirus
Aid,  Relief,  and  Economic  Security  Act,  income  related  to  a  settlement  agreement  that  the  Company  and  VectorY  B.V.
entered into in April 2021, as well as income from subleasing part of the Company’s Amsterdam facility. Other expense
consists of expenses incurred in relation to the subleasing income.

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2.3.23    Research and development expenses

Research and development costs are expensed as incurred. Research and development expenses generally consist
of  laboratory  research,  clinical  trials,  statistical  analysis,  and  report  writing,  regulatory  compliance  costs  incurred  with
clinical research organizations and other third-party vendors (including post-approval commitments to conduct consistency
and comparability studies). In addition, research and development expenses consist of start-up and validation costs related
to  the  Company’s  Lexington  facility  and  the  development  and  improvement  of  the  Company’s  manufacturing  processes
and  methods.  Furthermore,  research  and  development  costs  include  costs  of  materials  and  costs  of  intangible  assets
purchased  from  others  for  use  in  research  and  development  activities.  The  costs  of  intangibles  that  are  purchased  from
others  for  a  particular  research  and  development  project  and  that  have  no  alternative  future  uses  (in  other  research  and
development projects or otherwise) are expensed as research and development costs at the time the costs are incurred or at
the time when no alternative future use is identified.

2.3.24    Income taxes

Income taxes are recorded in accordance with ASC 740, Income Taxes, which provides for deferred taxes using an
asset  and  liability  approach.  The  Company  recognizes  deferred  tax  assets  and  liabilities  for  the  expected  future  tax
consequences of events that have been included in the financial statements or tax returns. Deferred tax assets and liabilities
are determined based on the difference between the financial statement carrying amount and the tax bases of assets and
liabilities  using  enacted  tax  rates  in  effect  for  the  year  in  which  the  differences  are  expected  to  reverse.  Valuation
allowances  are  provided,  if  based  upon  the  weight  of  available  evidence,  it  is  more-likely-than-not  that  some  or  all  the
deferred tax assets will not be realized.

The benefits of tax positions are recognized only if those positions are more likely than not, based on the technical
merits, to be sustained upon examination. Recognized tax positions are measured at the largest amount of tax benefit that is
greater than 50 percent likely of being realized upon settlement. The determination as to whether the tax benefit will more-
likely-than-not be realized is based upon the technical merits of the tax position as well as consideration of the available
facts and circumstances. As of December 31, 2023, and 2022, the Company did not have any significant unrecognized tax
benefits.

2.3.25 Royalty Financing Agreement

In  May  2023,  uniQure  biopharma  B.V.  (“uniQure  biopharma”),  a  wholly-owned  subsidiary  of  the  Company
entered into an agreement (the “Royalty Financing Agreement”) with the HemB SPV, L.P. (the “Purchaser”) to sell certain
current  and  future  royalties  due  to  uniQure  biopharma  from  CSL  Behring  under  the  CSL  Behring  Agreement  by  and
between uniQure biopharma and CSL Behring from the net sales of HEMGENIX®. Refer to Note 14 “Royalty Financing
Agreement” for further details of the Royalty Financing Agreement. The Company determined that the Royalty Financing
Agreement should be accounted for as debt in accordance with topic ASC 470, Debt. The Company initially recognized the
debt at fair value. The Company subsequently records the debt at amortized cost and determines the effective interest rate
based  on  its  projection  of  contractual  cash  flows.  Interest  expense  (presented  as  “Interest  Expense”  in  the  consolidated
statements  of  operations  and  comprehensive  (loss)  /  income)  is  recorded  over  the  projected  repayment  period  using  the
effective interest method. The Company periodically assesses and adjusts the effective interest rate to reflect changes in
projected cash flows. The Company prospectively applies the adjusted effective interest rate following the date of change.

In  accordance  with  topic  ASC  835,  Interest,  debt  issuance  costs  incurred  in  relation  to  the  Royalty  Financing
Agreement are presented as a reduction of carrying amount of the debt. Debt issuance cost is amortized together with the
interest expense recorded.

2.3.26 Restructuring expenses

Restructuring  charges  principally  consist  of  one-time  termination  benefits.  The  Company  records  one-time
termination  benefits  in  accordance  with  ASC  420,  Exit  or  Disposal  Cost  Obligations.  One-time  termination  benefits  are
expensed at the date the Company notifies the employee, unless the employee must provide future service, in which case
the benefits are expensed ratably over the future service period.

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Other costs relate to the impairment of the Lexington facility that was closed as a result of a reorganization plan
  (the  “Reorganization”).  The  Company  has  recognized  an  impairment  loss  of  the  right-of-use  asset  and  corresponding
leasehold improvements in accordance with ASC 360, Property, Plant and Equipment.

2.3.27 Recently Adopted Accounting Pronouncements

None.

Recent Accounting Pronouncements Not Yet Effective

None.

3.            uniQure France SAS transaction

At  the  Acquisition  Date,  the  Company  acquired  uniQure  France  SAS  (formerly  Corlieve  Therapeutics  SAS).
Following uniQure France SAS’s formation in November 2019, uniQure France SAS obtained exclusive licenses to certain
patents  from  two  French  research  institutions  that  continue  to  collaborate  with  the  Company.  uniQure  France  SAS  also
obtained  an  exclusive  license  from  Regenxbio  Inc.  (“Regenxbio”).  uniQure  France  SAS  and  Regenxbio  simultaneously
entered into a collaboration plan related to agreed joint preclinical research and development activities. At the Acquisition
Date, uniQure France SAS and its Swiss subsidiary, Corlieve Therapeutics AG, employed seven employees.

The  Company  evaluated  the  uniQure  France  SAS  transaction  as  to  whether  or  not  the  transaction  should  be
accounted for as a business combination or asset acquisition by first applying a screen test to determine if substantially all
of the fair value of the gross assets acquired is concentrated in a single identifiable asset or group of similar identifiable
assets.  Based  on  the  fair  values  of  the  gross  assets  acquired,  the  Company  determined  the  screen  test  was  not  met.  The
Company further analyzed whether or not the acquired inputs and processes that have the ability to create outputs would
meet the definition of a business. Significant judgment is required in the application of the screen test to determine whether
an acquisition is a business combination or an acquisition of assets.

Identifiable assets and liabilities of uniQure France SAS, including identifiable intangible assets, were recorded at
their  fair  values  as  of  the  Acquisition  Date,  when  the  Company  obtained  control.  The  excess  of  the  fair  value  of  the
consideration transferred over the fair value of the net assets acquired was recorded as goodwill.

Consideration

On the Acquisition Date, the Company acquired 97.7% of the outstanding ordinary shares of uniQure France SAS
in  return  for  EUR  44.9  million  ($53.3  million  as  of  the  Acquisition  Date).  The  Company  acquired  the  remaining
outstanding ordinary shares in February, July and September 2022 for a total of EUR 1.8 million ($1.9 million).

In  addition  to  the  payments  to  acquire  100%  of  the  outstanding  ordinary  shares,  uniQure  France  SAS’s  former
shareholders are eligible to receive up to EUR 40.0 million ($44.1 million as of December 31, 2023) upon achievement of
certain  development  milestones  through  Phase  I/II,  of  which  EUR  10.0  million  ($10.6  million)  was  paid  in  September
2023, and EUR 160.0 million ($176.6 million as of December 31, 2023) upon achievement of certain milestones associated
with  Phase  III  development  and  obtaining  approval  to  commercialize  uniQure  France  SAS’s  target  candidate  for  the
treatment of mesial temporal lobe epilepsy (“AMT-260” or “MTLE”) in the United States of America and the European
Union.  The  Company  may  elect  to  pay  up  to  25%  of  such  milestone  payments  through  the  issuance  of  the  Company’s
ordinary shares.

As  of  the  Acquisition  Date,  the  Company  recorded  EUR  20.2  million  ($24.0  million)  as  a  contingent  liability

(presented as “Non-current liability”) for the fair value of these milestone payments.

Identified intangible assets

The Company identified various licenses that combined with the results of the research and development activities
conducted  in  relation  to  AMT-260  since  incorporation  of  uniQure  France  SAS  in  2019  constitute  an  IPR&D  Intangible
Asset.

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The  Company  determined  the  fair  value  of  the  IPR&D  Intangible  Asset  using  a  present  value  model  based  on
expected cash flows. Estimating the amounts and timing of cash flows required to complete the development of AMT-260
as well as net sales, cost of goods sold, and sales and marketing costs involved considerable judgment and uncertainty. The
expected  cash  flows  are  materially  impacted  by  the  probability  of  successfully  completing  the  various  stages  of
development  (i.e.,  dosing  of  first  patient  in  clinical  trial,  advancing  into  late-stage  clinical  development  and  obtaining
approval to commercialize a product candidate) as well as the weighted average cost of capital of 10.4% used to discount
the  expected  cash  flows.  Based  on  all  such  information  and  its  judgment  the  Company  estimated  the  fair  value  of  the
IPR&D Intangible Asset at EUR 53.6 million ($63.6 million) as of the Acquisition Date.

Deferred tax liability, net

uniQure France SAS’s deferred tax assets at the time of acquisition amounted to EUR 1.5 million ($1.7 million).
Recognition of the IPR&D Intangible Asset gave rise to a deferred tax liability of EUR 13.4 million ($15.9 million) at the
enacted  French  corporate  income  tax  rate  of  25.0%.  The  Company  consequently  recorded  a  net  deferred  tax  liability  of
EUR 11.9 million ($14.2 million as of the Acquisition Date). Changes in the net deferred tax liability after the Acquisition
Date  will  be  recorded  in  income  tax  expense  in  the  Consolidated  statements  of  operations  and  comprehensive  income  /
(loss).

Goodwill

Goodwill  represents  the  excess  of  total  consideration  over  the  estimated  fair  value  of  net  assets  acquired.  The
Company recorded EUR 23.9 million ($28.4 million) of goodwill in the consolidated balance sheet as of the Acquisition
Date. The goodwill primarily relates to the recognition of a deferred tax liability recognized in association with the IPR&D
Intangible  asset  of  EUR  13.4  million  ($15.9  million  as  of  Acquisition  Date)  as  well  as  the  fair  market  value  of  the
experienced workforce and potential synergies from the acquisition. The Company allocated the goodwill to its reporting
unit. The Company does not expect any portion of this goodwill to be deductible for income tax purposes.

Debt

As of the Acquisition Date, uniQure France SAS held a loan with outstanding amount equal to EUR 1.0 million
($1.2 million), which loan was repaid in its entirety in September 2021. As of the Acquisition Date, uniQure France SAS
also  held  a  loan  with  outstanding  amount  equal  to  EUR  0.4  million  ($0.4  million),  which  was  repaid  in  its  entirety  in
December 2021.

Other

As of the Acquisition Date, the Company also acquired other assets and assumed other liabilities, which included
among others, EUR 2.9 million ($3.4 million) of current assets, which consisted of EUR 2.8 million ($3.3 million) of cash,
and EUR 1.1 million ($1.3 million) of current liabilities.

4.            Reorganization

On October 5, 2023, the Company announced the Reorganization. As a result, the Company recorded severance

and other personnel related expenses for the impacted employees.

In 2023, as a part of the Reorganization, the Company decided to sublease one of its laboratories in Lexington.
The carrying amount of the right-of-use asset was determined not to be recoverable. As a result, the Company recorded
impairment charges for the related operating lease right-of-use assets and leasehold improvements.

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A summary of the restructuring charges for the year ended December 31, 2023 by major activity type is as

follows:

Research and development
General and administrative
Total

Severance and
Other Personnel
Costs

Impairment
Charges

Total

$

$

(in thousands)
1,438
—
1,438

2,188
361
2,549

3,626
361
3,987

A summary of the changes in the severance and other personnel liabilities, included within accrued expenses and

other current liabilities on the consolidated balance sheets, related to the workforce reduction is as follows:

Balance as of January 1, 2023
Severance and other personnel costs
Cash payments during the period
Balance as of December 31, 2023

Amount of
liability

(in thousands)
—
2,549
(1,522)
1,027

$

$

5.            Collaboration arrangements and concentration of credit risk

CSL Behring collaboration

License Sale

The  Company  determined  that  the  fixed  upfront  payment  of  $450.0  million  and  the  $12.4  million  that  the
Company  received  in  May  2021  in  relation  to  the  Additional  Covenants  should  be  allocated  to  the  License  Sale.  In
addition,  the  Company  concluded  that  variable  milestone  payments,  sales  milestone  payments  and  royalties  should  be
allocated  to  the  License  Sale  performance  obligation  as  well.  The  Company  determined  that  the  License  Sale  was
completed  on  May  6,  2021,  when  it  transferred  the  license  and  CSL  Behring  assumed  full  responsibility  for  the
development and commercialization of the Product. At Closing, the Company evaluated the amounts of potential payments
and the likelihood that the payments will be received. The Company utilized the most likely amount method to estimate the
variable  consideration  to  be  included  in  the  transaction  price.  Since  the  Company  cannot  control  the  achievement  of
regulatory and first commercial sales milestones, the Company concluded that the potential payments were constrained as
of Closing. The Company determined that it would recognize revenue related to these payments only to the extent that it
becomes probable that no significant reversal of recognized cumulative revenue will occur thereafter.

The  Company  determined  that  achievement  of  a  total  of  $55.0  million  of  milestone  payments  related  to  the
submissions of a biologics license application (“BLA”) and market authorization application (“MAA”) was probable as of
February 25, 2022, the time of filing the 2021 financial statements, and hence recorded these as license revenue in the year
ended December 31, 2021. In March and April 2022, the global regulatory submissions were submitted, and the Company
received the $55.0 million owed to it from CSL Behring.

The Company recorded $100.0 million in variable milestone revenue related to a first sale of HEMGENIX® in
the U.S. during the year ended December 31, 2022 as the Company considered the occurrence of this event to be probable
following the November 2022 BLA approval of HEMGENIX®. The Company collected the $100.0 million payment from
CSL Behring in July 2023 following the first sale of the Product in the U.S in June 2023.

The  Company  is  also  eligible  to  receive  up  to  $1.3  billion  in  additional  payments  based  on  the  achievement  of
commercial milestones, which are not subject to the Royalty Financing Agreement. Royalties on the sale of HEMGENIX®
are recorded once earned and are presented as license revenue.

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The  Company  recognized  $2.8  million  (of  which  all  related  to  royalty  revenue),  $100.0  million  (nil  related  to
royalty  revenue)  and  $517.4  million  (nil  related  to  royalty  revenue)  of  revenues  related  to  the  License  Sale  in  the  years
ended December 31, 2023, 2022 and 2021, respectively.

The  Company  recorded  expenses  related  to  its  existing  license  and  other  agreements  as  well  as  its  financial

advisor for a high single digit percentage of any such revenue recognized associated to meeting a milestone.

Manufacturing Development

The Company determined that a $50.0 million variable milestone payment related to Manufacturing Development
should  be  allocated  to  the  Manufacturing  Development  performance  obligation.  The  Company  concluded  that  this
milestone payment represents the stand-alone selling price (“SSP”) of the services based on the estimated cost of providing
the services including a reasonable margin. Manufacturing Development includes providing information regarding a next
generation manufacturing process of the Product to CSL Behring. CSL Behring did not request such services during the
year ended December 31, 2023.

The variable consideration will be reduced based on a formula linked to quantities supplied using the currently
approved manufacturing process following the one year anniversaries of the BLA and MAA approvals. In conjunction with
the  ongoing  technology  transfer  (see  below),  the  Company  is  not  actively  generating  information  with  respect  to  a  next
generation  manufacturing  process  of  the  Product.  The  Company  utilized  the  most  likely  amount  method  to  estimate  the
variable consideration to be included in the transaction price. As of December 31, 2023, the Company has not recognized
any revenue related to the Manufacturing Development milestone.

Contract manufacturing

On  the  Signing  Date,  the  Company  and  CSL  Behring  entered  into  a  development  and  commercial  supply
agreement, pursuant to which, among other things, the Company will supply HEMGENIX® to CSL Behring at an agreed-
upon  price  commensurate  with  the  SSP.  The  Company  will  be  responsible  for  supplying  development  and  commercial
Product until such time that these capabilities may be transferred to CSL Behring or a designated contract manufacturing
organization. On September 6, 2022, CSL Behring notified the Company of its intent to transfer manufacturing technology
related to the Product in the coming years to a third-party contract manufacturer designated by CSL Behring.

The Company generated $10.8 million, $1.7 million and nil  contract  manufacturing  revenue  from  sales  to  CSL
Behring  during  the  years  ended  December  31,  2023,  2022  and  2021.  The  Company  recognizes  contract  manufacturing
revenue when CSL Behring obtains control of HEMGENIX®. The Company incurred $13.6 million, $2.1 million and nil
of cost in relation to its contract manufacturing activities during the years ended December 31, 2023, 2022 and 2021.  

Collaboration services

Following Closing, the Company was facilitating the completion of the HOPE-B clinical trial on behalf of CSL
Behring until CSL Behring took over the execution of the clinical trials in December 2022. Activities related to on-demand
development services and other services in accordance with the CSL Behring Agreement as well as activities related to the
completing the HOPE-B clinical trial are reimbursed by CSL Behring at an agreed full-time-employee rate (“FTE-rate”)
and  CSL  Behring  also  reimbursed  agreed  third-party  expenses  incurred  in  relation  to  performing  these  activities.  The
Company concluded that these rights at Closing did not represent material rights.

The Company recognized $2.3 million of collaboration revenue in the year ended December 31, 2023, compared

to $3.0 million and $2.4 million in the same periods in 2022 and 2021.

Accounts receivable and contract asset

As of December 31, 2023, the Company recorded accounts receivable of $4.0 million from CSL Behring related

to collaboration services, contract manufacturing revenue and royalty revenue.

As of December 31, 2022, the Company recorded accounts receivable of $2.2 million from CSL Behring related
to collaboration services as well as a contract asset of $100.0 million for a milestone due from CSL Behring following the
first sale of HEMGENIX® in the U.S., which was collected in July 2023.

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As of December 31, 2021, the Company recorded accounts receivable of $2.9 million from CSL Behring related
to collaboration services as well as a contract asset of $55.0 million associated with milestone payments due upon CSL
Behring’s global regulatory submissions for HEMGENIX™ which were collected in March and April 2022.

Bristol-Myers Squibb collaboration

On November 21, 2022, the Company received written notice that BMS is terminating the BMS CLA as amended

effective February 21, 2023.

The  Company  recognized  collaboration  revenues  associated  with  Collaboration  Target-specific  pre-clinical
analytical development and process development activities that were reimbursable by BMS under the amended BMS CLA
as  well  as  other  related  agreements.  Collaboration  revenue  related  to  these  contracted  services  was  recognized  when
performance obligations were satisfied. Total collaboration revenue generated with BMS are as follows:

Bristol Myers Squibb

2023

$
$

Years ended December 31, 
2022
(in thousands)
1,752
1,752

— $
— $

$
$

2021

4,176
4,176

Amounts  owed  by  BMS  in  relation  to  the  collaboration  revenue  are  as  follows  (presented  as  “Accounts

receivable”) as of December 31, 2023:

Bristol Myers Squibb
Total

6.            Investments securities

December 31, 
2023

December 31, 
2022

$
$

(in thousands)
— $
— $

136
136

The  following  table  summarizes  the  Company’s  investments  into  sovereign  debt  as  of  December  31,  2023  and

2022:

Current investments:

Government debt securities (held-to-maturity)

Total

Current investments:

Government debt securities (held-to-maturity)

Non-current investments:

Government debt securities (held-to-maturity)

Total

Amortized cost

Gross unrealized
holding gains

Gross unrealized
holding losses

Estimated fair
value

At December 31, 2023

(in thousands)

376,532
376,532

$
$

139
139

$
$

— $
— $

376,671
376,671

Amortized cost

Gross unrealized
holding gains

Gross unrealized
holding losses

Estimated fair
value

At December 31, 2022

(in thousands)

124,831

$

— $

(283) $

124,548

39,984
164,815

$

—
— $

(43)
(326) $

39,941
164,489

$
$

$

$

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The  Company  invests  in  short-term  U.S.  and  European  government  bonds  with  the  highest  investment  credit

rating. The U.S. and European government bonds are U.S. dollar and euro denominated, respectively.

Inputs to the fair value of the investments are considered Level 2 inputs.

7.            Inventories

The following table summarizes the inventory balances, net of reserves, as of December 31, 2023:

Raw materials
Work in progress
Finished goods
Inventories

December 31, 
2023

December 31, 
2022

(in thousands)

$

$

7,157
4,109
758
12,024

$

$

3,584
1,874
1,466
6,924

The  Company  recorded  write  downs  of  $1.6  million  and  nil  for  the  years  ended  December  31,  2023  and

 December 31, 2022. The costs are recognized as Cost of Contract Manufacturing Revenues.  

8.            Fair value measurement and Other non-operating (losses) / gains

The Company measures certain financial assets and liabilities at fair value, either upon initial recognition or for

subsequent accounting or reporting.

The carrying amount of cash and cash equivalents, accounts receivable from licensing and collaboration partners,
other assets, accounts payable, accrued expenses and other current liabilities reflected in the consolidated balance sheets
approximate their fair values due to their short-term maturities.

The  Company’s  material  financial  assets  include  cash  and  cash  equivalents,  restricted  cash  and  investment
securities. Cash and cash equivalents and restricted cash are measured at fair value using Level 1 inputs. Restricted cash is
included within “Other non-current assets” within the consolidated balance sheets. Investment securities are measured at
amortized cost.

The following table sets forth the balances and changes in fair values of liabilities that are measured at fair value

using Level 3 inputs:

Balance at December 31, 2020
Amount recorded for contingent consideration on Acquisition Date of uniQure
France SAS
Net losses recognized in profit or loss
Currency translation effects
Balance at December 31, 2021
Net losses / (gains) recognized in profit or loss
Currency translation effects
Balance at December 31, 2022
Net losses recognized in profit or loss
Contingent consideration milestone payment
Currency translation effects
Balance at December 31, 2023

Contingent

Derivative
financial

     consideration      instruments     

Total

(in thousands)
2,645

— $

$

2,645

23,950
6,683
(1,091)
29,542
7,080
(1,306)
35,316
15,895
(9,563)
1,358
43,006

$

$

$

23,950
—
6,843
160
(1,091)
—
$ 32,347
2,805
4,320
(2,760)
(45)
(1,351)
— $ 35,316
15,895
—
(9,563)
—
—
1,358
— $ 43,006

$

$

$

$

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Contingent consideration

The  Company  is  required  to  pay  up  to  EUR  178.8  million  ($197.3  million  at  the  December  31,  2023  foreign
exchange  rate)  to  the  former  shareholders  of  uniQure  France  SAS  (formerly  Corlieve  Therapeutics  SAS)  upon  the
achievement of contractually defined milestones in connection with the Company’s acquisition of uniQure France (refer to
Note 3 “uniQure France SAS transaction”). The Company recorded a liability for the fair market value of the contingent
consideration  of  EUR  20.2  million  ($24.0  million)  at  the  Acquisition  Date.  The  fair  market  value  was  determined  using
unobservable initial inputs with respect to (i) the probability of achieving the relevant milestones, or POS, (ii) the estimated
timing of achieving such milestones, and (iii) the interest rate used to discount the payments. The Company determined the
fair  market  value  of  the  contingent  consideration  by  calculating  the  probability-adjusted  payments  based  on  each
milestone’s probability of achievement. The probability-adjusted payments were then discounted to present value using a
discount rate representing the Company’s credit risk. This discount rate was determined using the effective interest rate of
the Company’s existing debt facility adjusted for difference in maturity dates based on market data on effective yields for
U.S. bonds with a CCC credit rating. In September 2023, a milestone payment of EUR 10.0 million ($10.6 million) was
paid, of which EUR 8.9 million ($9.6 million) related to contingent consideration.

The fair value of the contingent consideration as of December 31, 2023 was $43.0 million (December 31, 2022:
$35.3 million) using discount rates of approximately 15.3% to 15.6% (December 31, 2022: 14.0% to 14.4%). Following
the clearance of an Investigational New Drug (“IND”) application for AMT-260 in August 2023, the Company increased
the probability of achieving a EUR 30.0 million ($33.1 million) milestone payment following the dosing of the first patient
in Phase I/II clinical trial from 66.0% to 100.0%. This also resulted in an increase of the probability that AMT-260 may
advance to late-stage development and commercialization.

If as of December 31, 2023 the Company had assumed a 100% likelihood of AMT-260 advancing into a Phase III
clinical study, then the fair value of the contingent consideration would have increased to $75.9 million. If as of December
31, 2023 the Company had assumed that it would discontinue development of the AMT-260 program, then the contingent
consideration would have been released to income.

As  of  December  31,  2023,  the  Company  classified  $28.2  million  of  the  total  contingent  consideration  of  $43.0
million as current liabilities. The balance sheet classification between current and non-current liabilities is based upon the
Company’s best estimate of the timing of settlement of the remaining relevant milestones.  

Derivative financial instruments

The Company recorded the following results in other non-operating (losses) / gains related to the changes in the

fair value of derivative financial instruments.

Other non-operating gains:
Derivative gains
Total other non-operating gains:
Other non-operating losses:
Derivative losses
Other non-operating gains / (losses), net

Derivative financial instruments BMS

2023

Years ended December 31, 
2022
(in thousands)

2021

$

$

— $
—

—
— $

2,760
2,760

—
2,760

$

$

—
—

(160)
(160)

On  December  1,  2020,  as  part  of  the  amended  BMS  CLA,  the  Company  and  BMS  agreed  that  upon  the
consummation of a change of control transaction of uniQure that occurs prior to December 1, 2026 or BMS’ delivery of a
target cessation notice for all four Collaboration Targets, the Company (or its third party acquirer) shall pay to BMS a one-
time, non-refundable, non-creditable cash payment of $70.0 million, provided that (x) if $70.0 million is greater than five
percent (5.0%) of the net proceeds (as contractually defined) from such change of control transaction, the payment shall be
an amount equal to five percent of such net proceeds, and (y) if $70.0 million is less than one percent of such net proceeds,
the  change  of  control  payment  shall  be  an  amount  equal  to  one  percent  of  such  net  proceeds  (“CoC-payment”).  The
amended BMS CLA was terminated on February 21, 2023.

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The  Company  had  previously  determined  that  the  CoC-payment  should  be  recorded  as  a  derivative  financial
liability  as  of  the  December  1,  2020  initial  recognition  and  that  subsequent  changes  in  the  fair  market  value  of  this
derivative financial liability should be recorded in profit and loss.

The Company determined the fair market value of the derivative financial liability to be nil as of December 31,
2022 as no change of control transaction had been consummated prior to the termination of the amended BMS CLA on
February 21, 2023. This resulted in the derecognition of the derivative financial liability for the year ended December 31,
2022.

Accordingly, the Company recorded a $2.8 million gain within “Other non-operating (losses) / gains” in the year

ended December 31, 2022 and no such gains or losses were recorded in the year ended December 31, 2023.

Other

As  of  December  31,  2023,  the  Company  recorded  $0.5  million  liability  related  to  consideration  for  post-
acquisition  services,  presented  within  Other  non-current  liabilities  in  connection  with  the  Company’s  acquisition  of
uniQure France SAS (December 31, 2022: $0.3 million).

Investment securities

Refer to Note 6 “Investment securities” for the fair value of the investment securities as of December 31, 2023.

Pension plan assets

Refer to Note 15  “Retirement benefits” for the fair value of the plan assets as of December 31, 2023.

Other

9.         Property, plant, and equipment, net

The following table presents the Company’s property, plant, and equipment as of December 31:

Leasehold improvements
Laboratory equipment
Office equipment
Construction-in-progress
Total property, plant, and equipment
Less accumulated depreciation
Property, plant and equipment, net

December 31, 
2023

December 31, 
2022

(in thousands)

$

$

46,512
43,657
6,383
5,668
102,220
(55,672)
46,548

$

$

44,871
39,393
4,985
5,409
94,658
(44,126)
50,532

Total depreciation expense was $10.3 million for the year ended December 31, 2023 (December 31, 2022: $8.2
million, December 31, 2021: $6.1 million). Depreciation expense is allocated to research and development expenses and
cost  of  contract  manufacturing  to  the  extent  it  relates  to  the  Company’s  manufacturing  facility  and  equipment  and
laboratory equipment. All other depreciation expenses are allocated to selling, general and administrative expense.

The following table summarizes property, plant, and equipment by geographic region.

Lexington, Massachusetts (United States of America)
Amsterdam (the Netherlands)
Other
Total

133

    December 31,     December 31, 

2023

2022

(in thousands)

19,437
27,095
16
46,548

$

$

20,258
30,252
22
50,532

$

$

    
    
 
 
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10.         Right-of-use asset and lease liabilities

The Company’s most significant leases relate to office and laboratory space under the following operating lease

agreements:

Lexington, Massachusetts / United States

In July 2013, the Company entered into a lease for a facility in Lexington, Massachusetts, United States. The term
of the lease commenced in November 2013, was set for 10 years starting from the 2014 rent commencement date and is
non-cancellable.  Originally,  the  lease  for  this  facility  had  a  termination  date  of  2024.  In  November  2018,  the  term  was
expanded  by  five  years  to  June  2029.  The  lease  continues  to  be  renewable  for  two  subsequent  five-year  terms.
Additionally, the lease was expanded to include an additional 30,655 square feet within the same facility and for the same
term. The lease of the expansion space commenced on June 1, 2019.

The  contractually  fixed  annual  increase  of  lease  payments  through  2029  for  both  the  extension  and  expansion

lease have been included in the lease payments.

In December 2021, the Company entered into a new lease for an additional facility in Lexington, Massachusetts,
United States of approximately 13,501 square feet of space. The lease commenced in May 2022. Following the Company’s
announcement  of  the  Reorganization,  the  Company  incurred  costs  amounting  to  $1.4  million  associated  with  the
impairment of the right-of-use asset and its associated leasehold improvements’ carrying value that was determined not be
recoverable as of the cease-use date in late 2023. This facility is intended to be subleased in 2024.

In  February  2022,  the  Company  also  entered  into  a  new  lease  for  an  additional  facility  in  Lexington,
Massachusetts, United States of approximately 12,716 square feet. The lease commenced in November 2022 and is set for
a non-cancellable period of seven years and four months. The lease is renewable for one five-year term.

Amsterdam / The Netherlands

In  March  2016,  the  Company  entered  into  a  16-year  lease  for  a  facility  in  Amsterdam,  the  Netherlands  and
amended this agreement in June 2016. The lease for the facility terminates in 2032, with an option to extend in increments
of five-year periods. The lease contract includes variable lease payments related to annual increases in payments based on a
consumer price index.

On  December  1,  2017,  the  Company  entered  into  an  agreement  to  sub-lease  three  of  the  seven  floors  of  its
Amsterdam  facility  for  a  ten-year  term  ending  on  December  31,  2027,  with  an  option  for  the  sub-lessee  to  extend  until
December  31,  2031.  In  February  2020,  the  Company  amended  the  agreement  to  sub-lease  to  take  back  one  of  the  three
floors effective March 1, 2020. The fixed lease payments to be received during the remaining term under the agreement to
sub-lease amount to EUR 3.6 million ($4.0 million) as of December 31, 2023.

In  May  2021,  the  Company  entered  into  a  sublease  agreement  to  let  an  additional  approximately  1,080  square

meters of office space to accommodate the hiring of additional full-time employees. The lease expires in October 2028.

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Operating lease liabilities

The components of lease cost were as follows:

Operating lease cost
Variable lease cost
Sublease income
Total lease cost

Year ended December 31, 
2022

2021

2023

(in thousands)

$

$

7,018
1,238
(957)
7,299

$

$

5,932
785
(849)
5,868

$

$

5,306
698
(907)
5,097

The table below presents the lease-related assets and liabilities recorded on the Consolidated balance sheets.

Assets

Operating lease right-of-use assets

Liabilities
Current

Current operating lease liabilities

Non-current

Non-current operating lease liabilities

Total lease liabilities

Other information

     December 31, 

December 31,

2023

2022

(in thousands)

$

28,789

32,726

8,344

8,382

28,316
36,660

$

31,719
40,101

The weighted-average remaining lease term as of December 31, 2023, is 6.1 years, compared to 7.2 years as of
December 31, 2022, and the weighted-average discount rate as of December 31, 2023 is 11.2%, compared to 11.2% as of
December 31, 2022. The Company uses an incremental borrowing rate applicable to the lease asset.

The table below presents supplemental cash flow and non-cash information related to leases.

Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows for operating leases

Right-of-use asset obtained in exchange for lease obligation
Operating lease

Year ended December 31, 

2023

2022

2021

(in thousands)

$

$

7,921

561

$

$

7,532

9,824

$

$

5,738

1,699

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Table of Contents

Undiscounted cash flows

The table below reconciles the undiscounted cash flows as of December 31, 2023, for each of the first five years
and  the  total  of  the  remaining  years  to  the  operating  lease  liabilities  recorded  on  the  Consolidated  balance  sheet  as  of
December 31, 2023.

Lexington

Amsterdam(1)

Other

Total

2024
2025
2026
2027
2028
Thereafter
Total lease payments

Less: amount of lease payments representing interest payments
Present value of lease payments
Less: current operating lease liabilities
Non-current operating lease liabilities

$

5,504
5,859
6,031
6,207
6,388
2,956
$ 32,945

(7,920)
25,025
(5,504)
$ 19,521

$

$

$

$

(in thousands)
2,569
2,056
2,056
2,060
1,984
5,430
16,155

$

295
295
246
—
—
—
836

$

8,368
8,210
8,333
8,267
8,372
8,386
$ 49,936

(5,211)
10,944
(2,569)
8,375

$

(145)
691
(271)
420

(13,276)
36,660
(8,344)
$ 28,316

(1) Payments are due in EUR and have been translated at the foreign exchange rate as of December 31, 2023, of $1.10 / €1.00

11.            Intangible assets, net and Goodwill

The following table presents the Company’s acquired licenses and acquired IPR&D as of December 31:

     December 31, 

     December 31, 

2023

2022

Acquired licenses
Less accumulated amortization
Acquired licenses, net
Acquired IPR&D Intangible Asset
Intangibles, net

a. Acquired licenses

$

$

$

$

(in thousands)
2,419
(1,057)
1,362
59,119
60,481

$

$

2,346
(900)
1,446
57,332
58,778

All  acquired  licenses  are  owned  by  uniQure  biopharma  B.V,  a  subsidiary  of  the  Company.  The  remaining

weighted average life is 10.5 years as of December 31, 2023 (December 31, 2022 11.5 years).

As of December 31, 2023, the estimated future amortization expense for each of the five succeeding years and the

period thereafter is as follows:

Years

2024
2025
2026
2027
2028
Thereafter
Total

Amount
(in thousands)
130
130
130
130
130
712
1,362

$

$

The amortization expense related to licenses for the year ended December 31, 2023 was $0.1 million (December

31, 2022: $0.4 million; December 31, 2021: $1.2 million).

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b. Acquired in-process research and development

As part of its acquisition of uniQure France SAS as of July 30, 2021, the Company identified certain intangible

assets related to an IPR&D Intangible Asset. Refer to Note 3 “uniQure France SAS transaction”.

c. Goodwill

As part of its acquisition of uniQure France SAS as of July 30, 2021, the Company recorded goodwill. Refer to

Note 3 “uniQure France SAS transaction”.

12.            Accrued expenses and other current liabilities

Accrued expenses and other current liabilities include the following items:

Personnel related accruals and liabilities
Accruals for goods received from and services provided by vendors-not yet billed
Liability owed to the Purchaser pursuant to the Royalty Financing Agreement
Accrued contract fulfillment costs and costs to obtain a contract
Total

13.           Long-term debt

December 31, 
2023

December 31, 
2022

(in thousands)

$

$

16,263
12,834
1,437
—
30,534

$

$

17,201
11,120
—
2,250
30,571

On  June  14,  2013,  the  Company  entered  into  a  venture  debt  loan  facility  with  Hercules  Capital,  Inc.  (formerly
known as Hercules Technology Growth Capital, Inc.) (“Hercules”), which was amended and restated on June 26, 2014, on
May 6, 2016 (“2016 Amended Facility”) and on December 6, 2018 (“2018 Amended Facility”).

On  January  29,  2021,  the  Company  and  Hercules  amended  the  2018  Amended  Facility  (“2021  Amended
Facility”). Pursuant to the 2021 Amended Facility, Hercules agreed to an additional Facility of $100.0 million (“Tranche
B”) increasing the aggregate principal amount of the term loan facilities from $35.0 million to up to $135.0 million. On
January 29, 2021, the Company drew down $35.0 million of the Tranche B. Advances under Tranche B bore interest at a
rate  equal  to  the  greater  of  (i)  8.25%  or  (ii)  8.25%  plus  the  prime  rate,  less  3.25%  per  annum.  The  principal  balance  of
$70.0 million and all accrued but unpaid interest on advances under Tranche B was due on June 1, 2023, which date could
have  been  extended  by  the  Company  by  up  to  two  twelve-month  periods.  In  addition  to  Tranche  B,  the  2021  Amended
Facility had also extended the interest only payment period of the previously funded $35.0 million term loan (“Tranche A”)
from January 1, 2022 to June l, 2023.

On  December  15,  2021,  the  Company  and  Hercules  amended  and  restated  the  2021  Amended  Facility  (“2021
Restated Facility”). Pursuant to the 2021 Restated Facility, Tranche A and Tranche B of the 2021 Amended Facility with a
total outstanding balance of $70.0 million were consolidated into one tranche with a total commitment of $100.0 million.
The Company drew down an additional $30.0 million, resulting in total principal outstanding as of December 31, 2021 of
$100.0 million. The 2021 Restated Facility extended the loan’s maturity date from June 1, 2023 until December 1, 2025.
The interest-only period was extended from January 1, 2023 to December 1, 2024, or December 1, 2025 if, prior to June
30, 2024, either (a) the BLA for AMT-061 had been approved by the U.S. Food and Drug Administration (“FDA”) or (b)
AMT-130 had advanced into a pivotal trial. On November 22, 2022, the FDA approved the BLA for AMT-061 resulting in
the extension of the interest-only period to December 1, 2025.

On May 12, 2023 the Company and Hercules amended the 2021 Restated Facility (the “2023 Amended Facility”).
The  total  principal  outstanding  under  the  2023  Amended  Facility  remained  $100.0  million.  The  2023  Amended  Facility
extended the maturity date and interest only period from December 1, 2025 to January 5, 2027 (the “Maturity Date”).

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The Company is required to repay the entire principal balance on the Maturity Date. The interest rate is adjustable
and is the greater of (i) 7.95% and (ii) 7.95% plus the prime rate less 3.25% per annum. The Company paid a $2.5 million
back-end  fee  in  June  2023.  Under  the  2023  Amended  Facility,  the  Company  owes  a  back-end  fee  of  $4.9  million  on
December 1, 2025 and a back-end fee of $1.3 million on the Maturity Date.

The amortized cost (including interest due presented as part of accrued expenses and other current liabilities) of
the 2023 Amended Facility was $102.9 million as of December 31, 2023, compared to an amortized cost of $103.8 million
as of December 31, 2022, and is recorded net of discount and debt issuance costs. The foreign currency gain on the loan
was $3.0 million in 2023 (2022: loss of $5.8 million; 2021: loss of $5.3 million). The fair value of the loan approximates its
carrying amount. Inputs to the fair value of the loan are considered Level 3 inputs.

Interest expense recorded during the years ended December 31 was as follows:

Years

2023
2022
2021

$

Amount
(in millions)

14.6
11.5
7.2

Under the 2023 Amended Facility the Company must remain current in its periodic reporting requirements and is
required to keep a minimum cash balance deposited in bank accounts in the United States, equivalent to the lesser of (i)
65% of the outstanding balance of principal due or (ii) 100% of worldwide cash and cash equivalents. This restriction on
cash and cash equivalents only relates to the location of the cash and cash equivalents, and such cash and cash equivalents
can be used at the discretion of the Company. Beginning on April 1, 2024, the Company is required to keep a minimum of
unrestricted cash of at least 30% of the loan amount outstanding. In combination with other covenants, the 2023 Amended
Facility  restricts  the  Company’s  ability  to,  among  other  things,  incur  future  indebtedness  and  obtain  additional  debt
financing, to make investments in securities or in other companies, to transfer assets, to perform certain corporate changes,
to  make  loans  to  employees,  officers,  and  directors,  and  to  make  dividend  payments  and  other  distributions  to  its
shareholders. The Company secured the facilities by directly or indirectly pledging its total assets of $831.7 million, less
$9.3 million of cash and cash equivalents and other current assets held by the Company and $90.4 million of other current
assets and investment held by uniQure France SAS as well as receivables sold to the Purchaser.

Under the 2023 Amended Facility, the occurrence of a material adverse effect, as defined therein, would entitle
Hercules to declare all principal, interest and other amounts owed by the Company immediately due and payable. As of
December 31, 2023, the Company was in material compliance with all covenants and provisions.

The aggregate maturities of the loans, including $47.6 million of coupon interest payments and financing fees, for

each of the 37 months after December 31, 2023, are as follows:

Years

2024
2025
2026
2027
Total

Amount
(in thousands)

13,420
18,233
13,383
102,533
147,569

$

$

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14.            Royalty Financing Agreement

On  May  12,  2023,  the  Company  entered  into  the  Royalty  Financing  Agreement  with  the  Purchaser.  Under  the
terms of the Royalty Financing Agreement the Company received an upfront payment of $375.0 million in exchange for its
rights  to  the  lowest  royalty  tier  on  CSL  Behring’s  worldwide  net  sales  of  HEMGENIX®  for  certain  current  and  future
royalties  due  to  the  Company.  The  Company  is  also  eligible  to  receive  an  additional  $25.0  million  milestone  payment
under the Royalty Financing Agreement if 2024 net sales of HEMGENIX® exceed a pre-specified threshold, as set forth in
the Royalty Financing Agreement. The Purchaser will receive 1.85 times the upfront payment (or $693.8 million) and 1.85
times the $25.0 million milestone payment (if paid) until June 30, 2032 (“First Hard Cap Date”) if such thresholds are met
or,  if  such  cap  is  not  met  by  June  30,  2032,  up  to  2.25  times  of  the  upfront  and  milestone  payment  (if  paid)  through
December 31, 2038. If 2024 net sales do not exceed a pre-specified threshold, the Company will be obligated to pay $25.0
million to the Purchaser but only to the extent that the Company achieves a future sales milestone under the CSL Behring
Agreement. If such milestone payment is not due from CSL Behring, the Company is not obligated to pay any amounts to
the Purchaser.

The Company has retained the rights to all other royalties, as well as commercial milestones totaling up to $1.3

billion, under the terms of the CSL Behring Agreement.

Net  proceeds  from  the  Royalty  Financing  Agreement,  after  deducting  professional  and  financial  advisory  fees
related  to  the  transaction  of  $4.9  million,  were  $370.1  million.  The  Company  initially  recorded  these  net  proceeds  as
“Liability from royalty financing agreement” at their fair market value on its balance sheet as of closing of the transaction
on June 5, 2023. Following the initial recognition, the Company records the debt at amortized cost.

The Company expects to satisfy its commitment to the Purchaser prior to the First Hard Cap Date. The Company
will record the difference of $323.7 million between the total expected payments of $693.8 million to the Purchaser and the
$370.1  million  net  proceeds  as  interest  expense  using  the  effective  interest  rate  method.  The  Company  determined  the
effective interest rate based on the projected cash flows up to the First Hard Cap Date. Based on the Company’s projections
the  effective  interest  rate  is  expected  to  be  within  a  range  of  12.0%  to  13.5%  per  annum.  The  Company  would  have
recorded between $26.5 million and $29.9 million of interest expense during the year ended December 31, 2023 (nil for the
year ended December 31, 2022 and 2021) if it had used effective interest rates of 12.0% or 13.5%, instead of the $26.9
million recorded in the during the year ended December 31, 2023 (nil for the year ended December 31, 2022 and 2021).
The Company will prospectively update the effective interest rate at each reporting date based on updated projections.

The liability was initially recognized at fair value and inputs were considered Level 3 inputs.

The following table presents the movement in the liability related to the Royalty Financing Agreement between

the closing of the transaction on June 5, 2023 and December 31, 2023:

Gross proceeds from royalty financing agreement on June 5, 2023
Debt issuance costs paid
Royalty payments to Purchaser
Liability owed to the Purchaser (presented as "Accrued expense and other current liabilities")
Interest expense for the period June 5, 2023 to December 31, 2023
Liability related to the royalty financing agreement

Amount of
liability

(in thousands)
375,000
(4,938)
(1,317)
(1,437)
26,933
394,241

$

$

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15.          Retirement benefits

Defined benefit pension plan

The Company operates a defined benefit pension plan for its Swiss employees (the “Swiss Plan”) in accordance

with local regulations and practices. The normal retirement age under the Swiss Plan is 65 for men and women. All
benefits are immediately vested. Under the Swiss Plan, a percentage of pensionable salary is contributed as a retirement
credit with additional contributions being made for death and disability benefits. Under Swiss pension law, participants
who are covered by the pension plan of another employer are required to transfer the termination benefit of that pension
plan into the plan of the Company. When employment at the Company ends before reaching retirement, the termination
benefit is transferred out of the defined benefit pension plan. At time of retirement the accumulated retirement credit can be
converted into a life-long annuity or be paid-out as a lump-sum. Participants are also permitted to withdraw a part of the
accumulated termination benefit in special circumstances before reaching retirement age for example for payments related
to obtain home ownership.

The Company recognized its net projected benefit obligation as of December 31, 2023 at a carrying amount of

$2.5 million, presented within other non-current liabilities in the consolidated balance sheets.

The funded status of the Swiss Plan as of December 31, 2023 is as follows:

Fair value of plan assets
Present value of projected benefit obligation
Funded status: (net liability)

Accumulated benefit obligation as of December 31, 2023

December 31, 

2023

(in thousands)

$

$

$

8,946
(11,499)
(2,553)

10,739

Actuarial losses of $2.1 million, net of $0.4 million deferred tax income, were recorded in other comprehensive

income, net, during the year ended December 31, 2023.

The assumptions related to the Swiss Plan are as follows:

Actuarial assumptions (% p.a.)
Discount rate
Expected return on plan assets
Expected inflation rate
Interest credit rate
Long-term expected rate of salary increases
Pension increase

Future benefits expected to be paid are as follows:

Year 1
Year 2
Year 3
Year 4
Year 5
Next 5 years

Other disclosure items:
Next year's expected employer contribution

140

December 31, 

2023

1.50%
2.60%
1.60%
1.25%
1.60%
0.00%

December 31, 

2023

533
610
528
529
540
4,992

552

$

$

         
         
    
    
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The  Company's  investment  strategy  for  its  pension  plan  is  to  optimize  the  long-term  investment  return  on  plan
assets in relation to the liability structure to maintain an acceptable level of risk while minimizing the cost of providing
pension benefits and maintaining adequate funding levels in accordance with the applicable rules in each jurisdiction. The
Company  does  not  manage  any  assets  internally.  The  plan  assets  relate  to  assets  being  held  by  the  Swiss  pension
foundations in which the Company's pension plan is set-up.

The allocation of plan assets is presented below:

Bonds
Equities
Real estate
Others

December 31, 

2023

61%
25%
10%
4%

The fair value of the plan assets is determined based on Level 2 inputs.

16.          Shareholders’ equity

As of December 31, 2023, the Company’s authorized share capital is €4.0 million (or $4.4 million when translated
at  an  exchange  rate  as  of  December  31,  2023,  of  $1.10/  €1.00),  divided  into  80,000,000  ordinary  shares,  each  with  a
nominal value of €0.05. The Company’s shareholders, at the 2021 Annual General Meeting of Stockholders held on June
16, 2021, approved an increase in the number of authorized ordinary shares by 20,000,000 to 80,000,000.

All ordinary shares issued by the Company were fully paid. Besides the minimum amount of share capital to be

held under Dutch law, there are no distribution restrictions applicable to the equity of the Company.

As  of  December  31,  2023,  and  2022  and  2021  the  Company’s  other  comprehensive  result  was  restricted  for
payment  of  dividends  for  an  accumulated  other  comprehensive  loss  of  $53.6  million  in  2023,  an  accumulated  other
comprehensive loss of $58.3 million in 2022, and an accumulated other comprehensive loss of $28.9 million in 2021.

On March 1, 2021, the Company entered into a Sales Agreement with SVB Leerink LLC (“SVB Leerink”) with
respect  to  an  at-the-market  (“ATM”)  offering  program,  under  which  the  Company  may,  from  time  to  time  in  its  sole
discretion,  offer  and  sell  through  SVB  Leerink,  acting  as  agent,  its  ordinary  shares,  up  to  an  aggregate  offering  price  of
$200.0 million. The Company will pay SVB Leerink a commission equal to 3% of the gross proceeds of the sales price of
all ordinary shares sold through it as sales agent under the Sales Agreement. In March and April 2021, the Company issued
an  aggregate  of  921,730  ordinary  shares  at  a  weighted  average  price  of  $33.52  per  ordinary  share,  with  net  proceeds  of
$29.6  million,  after  deducting  underwriting  discounts  and  net  of  offering  expenses.  The  Company  defers  direct,
incremental  costs  associated  to  this  offering,  except  for  the  commission  costs  to  SVB  Leerink,  which  are  a  reduction  to
additional  paid-in  capital  and  will  deduct  these  costs  from  additional  paid-in  capital  in  the  consolidated  balance  sheets
proportionately  to  the  amount  of  proceeds  raised.  During  the  year  ended  December  31,  2021,  $1.3  million  of  direct,
incremental costs were deducted from additional paid-in capital (nil for the years ended December 31, 2022 and 2023).

Following  the  Closing  of  the  CSL  Behring  transaction,  the  Company  consumed  its  tax  net  operating  loss
carryforwards  from  the  years  2011  to  2018.  The  Company  allocated  the  tax  benefit  from  the  release  of  the  valuation
allowance related to net operating loss carryforwards generated by share issuance costs incurred in 2014, 2015, 2017 and
2018 to additional paid-in capital. This resulted is an increase of additional paid-in capital of $3.0 million in the year ended
December 31, 2021.

The Company recorded a $0.8 million increase of additional paid-in capital in the year ended December 31, 2022
resulting  from  the  release  of  valuation  allowance  for  the  tax  benefit  of  share  issuance  costs  incurred  in  2018,  2019  and
2021 within the Netherlands.

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17.          Share-based compensation

Share-based  compensation  expense  recognized  by  classification  included  in  the  consolidated  statements  of

operations and comprehensive (loss) / income was as follows:

Cost of manufacturing services revenue
Research and development
Selling, general and administrative
Total

$

$

2023

Year ended December 31, 
2022
(in thousands)
323
$
18,402
15,479
34,204

$

$

$

826
16,881
17,386
35,093

2021

—
12,834
12,801
25,635

Share-based compensation expense recognized by award type was as follows:

Award type/ESPP
Share options
Restricted share units
Performance share units
Employee share purchase plan
Total

2023

Year ended December 31, 
2022
(in thousands)

2021

$

$

13,302
18,524
3,234
33
35,093

$

$

13,425
15,486
5,267
26
34,204

$

$

12,477
11,347
1,783
28
25,635

As  of  December  31,  2023,  the  unrecognized  compensation  cost  related  to  unvested  awards  under  the  various

share-based compensation plans were:

Award type
Share options
Restricted share units
Performance share units
Total

     Unrecognized    Weighted average

share-based     
compensation
expense

remaining
period for
     recognition     

(in thousands)

(in years)

$

$

21,708
27,015
738
49,461

2.47
1.89
0.95
2.13

The  Company  satisfies  the  exercise  of  share  options  and  vesting  of  Restricted  Share  Units  (“RSUs”)  and

Performance Share Units (“PSUs”) through newly issued ordinary shares.

The Company’s share-based compensation plans include the 2014 Amended and Restated Share Option Plan (the
“2014 Plan”) and inducement grants under Rule 5653(c)(4) of The Nasdaq Global Select Market with terms similar to the
2014 Plan (together the “2014 Plans”). The Company previously had a 2012 Equity Incentive Plan (the “2012 Plan”). As of
December 31, 2023, no fully vested share options are outstanding (December 31, 2022: nil) under the 2012 Plan.

At the general meeting of shareholders on January 9, 2014, the Company’s shareholders approved the adoption of
the 2014 Plan. At the annual general meetings of shareholders in June 2015, 2016, 2018 and 2021, uniQure shareholders
approved  amendments  of  the  2014  Plan,  increasing  the  shares  authorized  for  issuance  by  1,070,000  shares  in  2015,
3,000,000  in  2016,  3,000,000  shares  in  2018,  4,000,000  shares  in  2021.  At  an  extraordinary  general  meeting  of
shareholders  in  November  2023,  an  additional  1,750,000  shares  were  authorized  for  issuance,  increasing  the  total  to
14,351,471 shares.

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Share options

Share options are priced on the date of grant and, except for certain grants made to non-executive directors, vest
over a period of four years. The first 25% vests after one year from the initial grant date and the remainder vests in equal
quarterly installments over years two, three and four. Certain grants to non-executive directors vest in full after one year.
Any options that vest must be exercised by the tenth anniversary of the initial grant date.

2014 Plans

The following tables summarize option activity under the Company’s 2014 Plans for the year ended December 31,

2023:

Number of
    ordinary shares    

Weighted average
exercise price

Weighted average
     remaining contractual life     

Aggregate intrinsic
value

Options

Outstanding at December 31, 2022
Granted
Forfeited
Expired
Exercised
Outstanding at December 31, 2023
Thereof, fully vested, and exercisable on
December 31, 2023
Thereof, outstanding and expected to vest
after December 31, 2023
Outstanding and expected to vest after
December 31, 2022

$
4,237,917
1,650,030
$
(543,481) $
(356,366) $
(14,070) $
$

4,974,030

2,738,595

2,235,435

2,098,557

$

$

$

26.13
18.16
22.04
36.26
9.24
23.25

26.08

19.78

23.38

in years

7.14

$

(in thousands)
17,848

6.71

5.15

8.77

182

182

—

Total weighted average grant date fair value of options issued
during the period (in $ millions)
Granted to directors and officers during the period (options,
grant date fair value $ in millions)
Proceeds from option sales during the period (in $ millions)

786,580

$

$
$

17.4

9.0
0.1

The following table summarizes information about the weighted average grant-date fair value of options during

the years ended December 31:

Granted, 2023
Granted, 2022
Granted, 2021
Vested, 2023
Forfeited, 2023

     Weighted average

Options
1,650,030
1,426,966
1,174,893
873,658
(543,481)

grant‑date fair value
10.57
$
9.04
20.95
13.50
12.78

The  following  table  summarizes  information  about  the  weighted  average  grant-date  fair  value  of  options  at

December 31:

Outstanding and expected to vest, 2023
Outstanding and expected to vest, 2022

Options

  2,235,435
  2,098,557

     Weighted average

grant‑date fair value
11.50
$
13.46

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The fair value of each option issued is estimated at the respective grant date using the Hull & White option pricing

model with the following weighted-average assumptions:

Assumptions
Expected volatility
Expected terms
Risk free interest rate
Expected dividend yield

Year ended December 31, 

2023
70%
10 years
3.7% - 4.8%
0%

2022
70%
10 years

2021
75%
10 years
2.1% - 4.2% 1.2 - 1.9%

0%

0%

The Hull & White option model captures early exercises by assuming that the likelihood of exercises will increase
when the share price reaches defined multiples of the strike price. This analysis is performed over the full contractual term.

The following table summarizes information about options exercised during the years ended December 31:

2023
2022
2021

Restricted Share Units

     Exercised

during the year

14,070
138,356
241,496

Intrinsic value
(in thousands)
154
$
1,848
5,046

The following table summarizes the RSU activity for the year ended December 31, 2023:

RSUs
     Weighted average

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

Number of
ordinary shares
1,818,774
1,770,025
(738,447)
(585,983)
2,264,369

Total weighted average grant date fair value of RSUs granted during the period (in $
millions)
Granted to directors and officers during the period (shares, $ in millions)

419,200

grant-date fair
value

20.46
17.88
22.65
19.12
18.07

31.6
8.3

$
$
$
$
$

$
$

The  following  table  summarizes  information  about  the  weighted  average  grant-date  fair  value  of  RSUs  granted

during the years ended December 31:

2023
2022
2021

Granted
during the year
1,770,025
1,604,533
574,921

     Weighted average

grant‑date fair value
17.88
$
16.10
36.14

The following table summarizes information about the total fair value of RSUs that vested during the years ended

December 31:

2023
2022
2021

$

Total fair value
(in thousands)
13,729
5,104
8,063

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RSUs generally vest over one to three years. RSUs granted to non-executive directors will vest one year from the

date of grant.

Performance Share Units

The following table summarizes the PSU activity for the year ended December 31, 2023:

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

PSUs
     Weighted average
grant-date fair
value

Number of
ordinary shares
400,690
$
(94,510) $
(83,630) $
222,550
$

28.82
30.65
28.22
28.09

Total weighted average grant date fair value of PSUs granted
during the period (in $ millions)

$

-

The Company granted shares to certain employees in September and December 2021 and various dates during the
year ended December 31, 2022 that will be earned upon achievement of defined milestones. Earned shares will vest upon
the  later  of  a  minimum  service  period  of  three years,  or  the  achievement  of  defined  milestones,  subject  to  the  grantee’s
continued  employment.  In  addition,  portions  of  the  December  2021  granted  to  executives  and  other  members  of  senior
management are subject to achieving a minimum total shareholder return relative to the Nasdaq biotechnology index. The
Company recognizes the compensation cost related to these grants to the extent it considers achievement of the milestones
to  be  probable.  As  of  December  31,  2023,  two  milestones  had  been  achieved  and  vested  in  either  2022  or  2023.
Additionally, another two milestones are considered probable as of December 31, 2023.

In January 2018 and January and February 2019, the Company awarded PSUs to its executives and other members
of senior management. These PSUs were earned in January 2019 and January 2020, based on the Board of Directors’ (the
“Board”)  assessment  of  the  level  of  achievement  of  agreed  upon  performance  targets  through  December  31,  2018,  and
December 31, 2019, respectively. The PSUs awarded for the year ended December 31, 2018 vested in February 2021 and
the PSUs awarded for the year ended December 31, 2019 vested in January 2022.

The  following  table  summarizes  information  about  the  weighted  average  grant-date  fair  value  of  the  PSUs

determined as of the date of the grant for the 2021 and 2022 PSUs:

     Granted

     Weighted average

2023
2022
2021

during the year

— $
$
$

34,700
555,600

grant‑date fair value
—
15.11
30.19

The following table summarizes information about the total fair value of PSUs that vested during the years ended

December 31:

2023
2022
2021

$

Total fair value
(in thousands)
1,474
4,450
5,074

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Employee Share Purchase Plan (“ESPP”)

In June 2018, the Company’s shareholders adopted and approved an ESPP allowing the Company to issue up to
150,000 ordinary shares. The ESPP is intended to qualify under Section 423 of the Internal Revenue Code of 1986. Under
the ESPP, employees are eligible to purchase ordinary shares through payroll deductions, subject to any plan limitations.
The purchase price of the shares on each purchase date is equal to 85% of the lower of the closing market price on the
offering date or the closing market price on the purchase date of each three-month offering period. During the year ended
December  31,  2023,  19,198  ordinary  shares  have  been  issued  (December  31,  2022:  11,242  and  December  31,  2021:
4,724). As of December 31, 2023, a total of 96,862 ordinary shares remain available for issuance under the ESPP plan.

18.          Expenses by nature

Operating expenses excluding expenses presented in other expenses included the following expenses by nature:

Employee-related expenses
Laboratory and development expenses
Office and housing expenses
Legal and advisory expenses
Fair value loss - uniQure France SAS contingent consideration
Other operating expenses
Depreciation and amortization expenses
Patent and license expenses
Impairment related to the Reorganization
Total

2021

2023

Years ended December 31, 
2022
(in thousands)
$ 119,903
65,964
17,612
15,782
7,081
8,510
8,250
9,548
—
$ 252,650

$ 96,161
36,014
14,638
24,767
6,683
10,528
7,299
3,748
—
$ 199,838

$ 135,728
63,065
22,960
21,975
15,895
11,236
10,046
7,112
1,438
$ 289,455

Details of employee-related expenses for the years ended December 31 are as follows:

Wages and salaries
Share-based compensation expenses
Contractor expenses
Social security costs
Health insurance
Costs related to pension plans
Severance costs related to the Reorganization (refer to Note 4 "Reorganization")
Other employee expenses
Total

19.            Other income

2021

2023

Years ended December 31, 
2022
(in thousands)
$ 63,704
33,881
3,959
5,179
4,148
2,667
—
6,365
$ 119,903

$ 53,078
  25,635
3,170
4,496
3,161
2,051
—
4,570
$ 96,161

$ 71,852
34,267
6,141
5,900
4,216
3,611
2,549
7,192
$ 135,728

Other  income  during  the  year  ended  December  31,  2023  was  $6.1  million  compared  to  $7.2  million  and  $12.3

million during the same periods in 2022 and 2021, respectively.

Other  income  in  2023,  2022  and  2021  includes  income  from  payments  received  from  European  authorities  to
subsidize the Company’s research and development efforts in the Netherlands. The amount recognized in the year ended
December 31, 2023 was $5.0 million compared to $5.6 million in 2022 and $5.3 million in 2021.

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In addition, other income included $2.6 million of employee retention credits received under the U.S. Coronavirus
Aid, Relief, and Economic Security Act, during the year ended December 31, 2021. No such income was received in the
years ended December 31, 2023 or December 31, 2022.

An  additional  $3.0  million  of  other  income  was  recorded  in  the  year  ended  December  31,  2021,  related  to  the
receipt by the Company of 69,899 shares of VectorY B.V. in conjunction with a settlement agreement that the Company
and VectorY B.V. entered into in April 2021. In the year ended December 31, 2023 and 2022, the Company recognized nil
and $0.3 million, respectively, of other income related to the equity stake received in VectorY.

In 2023, 2022 and 2021 the Company’s other income also consisted of income from the subleasing of a portion of

the Amsterdam facility while other expense consists of expenses incurred in relation to the subleasing income.

20.         Income taxes

a.           Income tax (benefit) / expense

Due to the uncertainty surrounding the realization of favorable tax attributes in future tax returns, the Company
has recorded a valuation allowance against the Company’s net deferred tax assets in the Netherlands and a partial valuation
allowance against the Company’s net deferred tax assets in France.

In connection with the acquisition of uniQure France SAS, the Company recognized a deferred tax liability related
to acquired identifiable intangible assets and a deferred tax asset for net operating tax loss carryforwards for a net of EUR
11.9 million ($14.2 million) as of the Acquisition Date.

There are no significant unrecognized tax benefits as of December 31, 2023 and 2022.

For  the  years  ended  December  31,  2023,  2022  and  2021,  (loss)  /  income  before  income  tax  benefit  /  (expense)

consists of the following:

Dutch operations
U.S. operations
Other
Total

2023

Years ended December 31, 
2022
(in thousands)

$

$

(282,530) $
(6,903)
(17,124)
(306,557) $

(96,872) $
(14,934)
(16,453)
(128,259) $

2021

348,400
(12,737)
(2,857)
332,806

The  income  tax  (expense)  /  benefit  for  the  years  ended  December  31,  2023,  2022  and  2021,  consists  of  the

following:

2023

Years ended December 31, 
2022
(in thousands)

2021

Current tax expense

Other
     Total current income tax expense

Deferred tax (expense) / benefit

Dutch operations
U.S. operations
Other
     Total deferred tax (expense) / benefit 

Total income tax (expense) / benefit

147

$
$

(110) $
(110) $

(24) $
(24) $

(7)
(7)

$ — $
  (2,708)
897

  (1,075)
3,377
$ (1,811) $ 1,494
$ (1,921) $ 1,470

(808) $ (3,047)
(771)
608
$ (3,210)
$ (3,217)

    
    
    
 
 
 
    
    
    
 
 
 
 
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b.           Tax benefit recognized in other comprehensive income

The  reconciliation  of  the  amount  of  income  tax  benefit  recognized  in  other  comprehensive  income  for  the  year

ended December 31, 2023 is as follows:

Unrecognized gain related to defined benefit pension plan liability
Total

Year ended December 31, 2023

     Before tax      Tax benefit      Net of tax

(in thousands)

$ (2,553) $
$ (2,553) $

417
417

$ (2,136)
$ (2,136)

No  income  tax  benefit  or  expense  has  been  recognized  in  Other  Comprehensive  Income  for  the  years  ended

December 31, 2022 and 2021.

c.           Tax rate reconciliation

The  reconciliation  of  the  amount  of  income  tax  (expense)  /  benefit  that  would  result  from  applying  the  Dutch
statutory income tax rate to the Company’s reported amount of (loss) / income before income tax (expense) / benefit for the
years ended December 31, 2023, 2022 and 2021, is as follows:

(Loss) / income before income tax (expense) / benefit for the period
Expected income tax benefit / (expense) at the tax rate enacted in the Netherlands
(2023: 25.8%, 2022: 25.8%, 2021: 25.0%)
Difference in tax rates between the Netherlands and the U.S. as well as other
foreign countries
Other net change in valuation allowance
Non-deductible expenses
Income tax (expense) / benefit

2023

Years ended December 31, 
2022
(in thousands)
$ (306,557) $ (128,259) $ 332,806

2021

79,092

33,091

(83,201)

(124)
(67,004)
(13,885)
(1,921) $

$

99
(20,591)
(11,129)
1,470

$

309
88,857
(9,182)
(3,217)

Non-deductible  expenses  predominantly  relate  to  share-based  compensation  expenses.  These  expenses  affected
the effective tax rate by an amount of $9.0 million in 2023 (2022: $8.5 million; 2021: $6.7 million). The fair value loss on
contingent consideration affected the effective tax rate by an amount of $4.1 million in 2023 ($1.9 million and $2.0 million
in 2022 and 2021, respectively).

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d.           Significant components of deferred taxes

The  tax  effects  of  temporary  differences  and  carryforwards  that  give  rise  to  significant  portions  of  deferred  tax

assets and deferred tax liabilities as of December 31, 2023 and 2022 are as follows:

Years ended December 31, 

2023

2022

(in thousands)

Deferred tax assets:
Net operating loss carryforwards
Operating lease liabilities
Intangible assets
Liability from Royalty Financing Agreement
Interest carryforwards
Accrued expenses and other current liabilities
Inventory
Defined benefit pension plan liability
Property, plant and equipment
Research and development tax credit carryforwards
Total deferred tax assets
Less valuation allowance
Deferred tax assets, net of valuation allowance
Acquired IPR&D intangible asset
Operating lease right-of-use assets
Property, plant and equipment
Other current assets and receivables
Deferred tax liability
Net deferred tax asset

Changes in the valuation allowance were as follows:

January 1,
Changes recorded in the statement of operations
Changes recorded in equity
Increase related to 2021 Dutch tax reforms
Valuation allowance assumed in uniQure France SAS acquisition
Other changes including currency translation adjustments
December 31,

$

$

$

$
$

$

145,826
9,790
6,417
6,155
3,711
1,435
497
406
—  
—
174,237
(145,191)
29,046
(15,242)
(8,159)
(719)
(193)
(24,313)
4,733

84,633
10,612
3,826
—
3,697
1,862
—
—
510
144
$ 105,284
(74,547)
30,737
(15,033)
(9,323)
—
(110)
$ (24,466)
6,271
$

$

Years ended December 31, 
2022

2023

2021

$

74,547
67,004
—
—  
—
3,640
$ 145,191

(in thousands)
$ 60,289
20,593
(972)

—  
—
(5,363)
$ 74,547

$ 150,113
(88,858)
—
1,897
545
(3,408)
60,289

$

The  valuation  allowance  as  of  December  31,  of  $145.2  million  as  of  December  31,2023  is  primarily  related  to
$142.4  million  deferred  tax  assets  in  the  Netherlands  resulting  from  net  operating  loss  carryforwards  of  $127.1  million,
intangibles assets of $5.5 million, liability from Royalty Financing Agreement of $6.2 million and interest carryforwards of
$3.7 million.

Netherlands

As of December 31, 2023, the total amount of net operating losses carried forward under the Dutch tax regime
was $492.7 million (December 31, 2022: $264.0 million, 2021: $228.5 million). The Company has historically recorded a
full  valuation  allowance.  The  Company  evaluates  all  positive  and  negative  evidence  in  assessing  the  need  for  a  full
valuation allowance. Management considers reversing taxable temporary differences, projected future taxable income and
tax-planning strategies in making this assessment. The Company concluded that as of December 31, 2023, December 31,
2022 and December 31, 2021 it is more likely than not that the remaining deferred tax assets will not be realized.

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As of December 31, 2023, the tax treatment of the Royalty Agreement has not yet been agreed with the Dutch tax
authorities. A different tax treatment could result in a different categorization of temporary differences and an offsetting
deferred tax asset.

The  Company  recorded  $462.4  million  of  license  revenue  in  May  2021  after  the  Closing  of  the  CSL  Behring
transaction. The Company recorded such revenue in its Dutch tax return related to the 12-month period ended December
31,  2020,  which  it  filed  on  February  10,  2022.  As  such,  the  Company  filed  a  return  showing  a  taxable  profit  in  the
Netherlands in 2020, which resulted in the consumption of substantially all of its Dutch net operating losses for the years
2011 to 2018. The Company’s remaining Dutch net operating tax losses carried forward relate to 2019, 2022 and 2023. The
Company allocated the tax benefit from the release of the valuation allowance related to net operating loss carryforwards
generated by share issuance cost incurred in 2014, 2015, 2017 and 2018 to additional paid-in capital. This resulted in an
increase of additional paid-in capital as well as deferred tax expenses of $3.0 million during the year ended December 31,
2021.

The Company recorded $0.8 million increase of additional paid-in capital in the year ended December 31, 2022
resulting  from  the  release  of  valuation  allowance  for  the  tax  benefit  of  share  issuance  costs  incurred  in  2018,  2019  and
2021.

A portion of the valuation allowance for deferred tax assets recorded as of December 31, 2023 continues to relate
to  follow-on  offering  costs  incurred  in  2019.  Any  subsequently  recognized  tax  benefits  will  be  credited  directly  to
contributed capital. As of December 31, 2023, that amount was $3.4 million ($3.3 million as of December 31, 2022).

The Dutch corporate tax rate for fiscal year 2021 was 25.0%. In December 2021, changes were enacted that raised

the corporate income tax rate from 25.0% to 25.8% from 2022 onwards.

In  June  2021  legislation  was  enacted  allowing  for  an  indefinite  carryforward  from  fiscal  year  2022  onwards  of
existing  and  future  net  operating  loss  carryforwards  subject  to  a  limit  of  offsetting  taxable  profit  in  excess  of  EUR  1.0
million to 50% of the taxable profit.

The fiscal periods from 2022 onwards are still open for inspection by the Dutch tax authorities.

United States of America

The  federal  corporate  tax  rate  in  the  U.S.  is  21.0%.  In  addition,  the  Company  is  subject  to  state  income  taxes
resulting in a combined tax rate of 27.3% for its U.S. operation. As of December 31, 2023, an estimated $31.1 million of
net operating losses remain to be carried forward. These net operating losses carried forward will expire in 2036 and 2037
except for $0.7 million which can be carried forward indefinitely with a deduction limited to 80% of taxable income in a
given year.

The  Company’s  U.S.  operations  generated  taxable  income  in  the  fiscal  years  2018  to  2021  and  2023.  The

Company expects to continue to generate taxable income in the U.S. during the foreseeable future.

Under  the  provision  of  the  Internal  Revenue  Code,  the  U.S.  net  operating  losses  carried  forward  may  become
subject  to  an  annual  limitation  in  the  event  of  certain  cumulative  exchange  in  the  ownership  interest  of  significant
shareholders  over  a  three-year  period  in  excess  of  50  percent,  as  defined  under  Section  382  and  383  of  the  Internal
Revenue Code. This could limit the amount of tax attributes that can be utilized annually to offset future taxable income or
tax liabilities. The amount of the annual limitation is determined based on the value of the Company immediately prior to
the ownership change. Subsequent ownership changes may further affect the limitation.

The fiscal periods from 2020 are still open for inspection by the Internal Revenue Service (“IRS”). To the extent
the Company has tax attribute carryforwards, the tax years in which the attribute was generated may still be adjusted upon
examination by the IRS or Massachusetts Department of Revenue to the extent utilized in a future period. The Company is
currently not under examination by the IRS for any tax years.

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France

The French corporate tax rate for fiscal year 2023 was 25.0%. In addition, the Company is subject to a surcharge

of 3.3% of the 25.0% standard corporate tax rate resulting in a combined rate of 25.8%.

The Company’s French operations have incurred losses since incorporation and are expected to continue incurring
tax  losses  for  the  foreseeable  future.  The  French  operations  as  of  December  31,  2023  have  an  estimated  $39.6  million
($23.3  million  as  of  December  31,  2022)  of  net  operating  losses  that  are  available  for  carry  forward  indefinitely.  The
Company recorded a partial valuation allowance during the year ended December 31, 2023. No such valuation allowance
was recorded in the years ended December 31, 2022 and 2021. The Company evaluates all positive and negative evidence
including future income from reversing taxable temporary differences (particularly from reversing the deferred tax liability
related to the acquired IPR&D intangible asset), projected future taxable income and tax-planning strategies in making this
assessment.

21.          Basic and diluted earnings per share

Basic  net  (loss)  /  income  per  ordinary  share  is  computed  by  dividing  net  (loss)  /  income  for  the  period  by  the
weighted  average  number  of  ordinary  shares  outstanding  during  the  period.  Diluted  earnings  per  ordinary  share  are
calculated by adjusting the weighted average number of ordinary shares outstanding, assuming conversion of all potentially
dilutive ordinary shares. For the year ended December 31, 2021, dilutive net income / (loss) per ordinary share is computed
using the treasury method. As the Company has incurred a loss in the years ended December 31, 2023 and December 31,
2022, all potentially dilutive ordinary shares for these years would have an antidilutive effect, if converted, and thus have
been excluded from the computation of loss per share for the years ended December 31, 2023 and December 31, 2022.  

Numerator:
Net (loss) / income attributable to ordinary shares

Denominator:
Weighted-average number of ordinary shares outstanding - basic

Stock options under 2014 Plans and previous plan
Non-vested RSUs and PSUs
Employee share purchase plan

Weighted-average number of ordinary shares outstanding - diluted

2023

Year ended December 31, 
2022
(in thousands, except 
share amounts)

2021

$

(308,478) $
(308,478)

(126,789) $
(126,789)

329,589
329,589

47,670,986
—
—
—
47,670,986

46,735,045
—
—
—
46,735,045

45,986,467
746,044
107,162
1,299
46,840,972

The  following  table  presents  ordinary  share  equivalents  that  were  excluded  from  the  calculation  of  diluted  net
income / (loss) per ordinary share for the years ended December 31, 2023, 2022 and 2021 as the effect of their inclusion
would have been anti-dilutive:

Anti-dilutive ordinary share equivalents

Stock options under 2014 Plans and previous plan
Non-vested RSUs and PSUs
ESPP

Total anti-dilutive ordinary share equivalents

2023

Year ended December 31, 
2022

2021

4,974,030
2,486,919
3,640
7,464,589

4,237,917
2,219,464
1,048
6,458,429

2,576,281
1,236,385
1,842
3,814,508

The anti-dilutive ordinary shares are presented without giving effect to the application of the treasury method or
exercise prices that exceeded the price of the Company’s ordinary shares as of December 31, 2023 and December 31, 2022.

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22.          Commitments and contingencies

In  the  course  of  its  business,  the  Company  enters  as  a  licensee  into  contracts  with  other  parties  regarding  the
development and marketing of its pipeline products. Among other payment obligations, the Company is obligated to pay
royalties to the licensors based on future sales levels and milestone payments whenever specified development, regulatory
and  commercial  milestones  are  met.  As  both  future  sales  levels  and  the  timing  and  achievement  of  milestones  are
uncertain, the financial effect of these agreements cannot be estimated reliably. The Company also has obligations to make
future  payments  that  become  due  and  payable  upon  the  collection  of  milestone  payments  from  CSL  Behring.  The
achievement and timing of these milestones is not fixed and determinable. Relevant commitments and contingencies are
further  discussed  in  other  sections  of  this  form  10-K,  such  as,  Note  3  “uniQure  France  SAS  transaction”  and  Note  5
“Collaboration arrangements and concentration of credit risk”, amongst others.

23.        Related party transaction

None.

24.         Subsequent events

None.

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Exhibit
No.

EXHIBIT INDEX

Description

2.1† Sale  and  Purchase  Agreement,  executed  June  21,  2021,  by  and  between  uniQure  N.V.  and  Corlieve
Therapeutics SAS (incorporated by reference to Exhibit 2.1 of the Company’s quarterly report on Form
10-Q (file no. 001-36294) for the period ended June 30, 2021 filed with the SEC on July 26, 2021).

3.1 Amended  Articles  of  Association  of  the  Company  (incorporated  by  reference  to  Exhibit  3.1  of  the
Company’s quarterly report on Form 10-Q (file no. 001-36294) for the period ended June 30, 2021 filed
with the SEC on July 26, 2021).

4.1* Description of the Registrant’s Securities Registered Pursuant to Section 12 of the Securities Exchange

Act of 1934.

10.1t 2014  Share  Incentive  Plan  (incorporated  by  reference  to  Exhibit  4.3  of  the  Company's  registration

statement on Form S-8 (file no. 333-225629) filed with the SEC on June 14, 2018).

10.6t Employment  Agreement  dated  December  9,  2014  between  uniQure,  Inc.  and  Matthew  Kapusta
(incorporated by reference to Exhibit 10.6 of the Company's annual report on Form 10-K (file no. 001-
36294) for the year ended December 31, 2016 filed with the SEC on March 15, 2017).

10.7t Amendment to the Employment Agreement between uniQure, Inc. and Matthew Kapusta, dated March
14, 2017 (incorporated by reference to Exhibit 10.7 of the Company's annual report on Form 10-K (file
no. 001-36294) for the year ended December 31, 2016 filed with the SEC on March 15, 2017).
10.8t Amendment to the Employment Agreement between uniQure, Inc. and Matthew Kapusta, dated October
26, 2017 (incorporated by reference to Exhibit 10.1 of the Company’s quarterly report on Form 10-Q
(file  no.  001-36294)  for  the  period  ended  September  30,  2017  filed  with  the  SEC  on  November  1,
2017).

10.18 Lease  relating  to  113  Hartwell  Avenue,  Lexington,  Massachusetts,  dated  as  of  July  24,  2013,  by  and
between uniQure Inc. and King 113 Hartwell LLC (incorporated by reference to Exhibit 10.28 of the
Company's registration statement on Form F-1 (file no. 333-193158) filed with the SEC on January 2,
2014).

10.19 Business Acquisition Agreement, dated as of February 16, 2012, by and among Amsterdam Molecular
Therapeutics (AMT) Holding N.V., the Company and the other Parties listed therein (incorporated by
reference to Exhibit 10.29 of the Company's registration statement on Form F-1 (file no. 333-193158)
filed with the SEC on January 2, 2014).

10.20 Deed  of  Assignment  of  Certain  Assets  and  Liabilities  of  Amsterdam  Molecular  Therapeutics  (AMT)
Holding  N.V.,  dated  as  of  April  5,  2012,  by  and  among  Amsterdam  Molecular  Therapeutics  (AMT)
Holding B.V., Amsterdam Molecular Therapeutics (AMT) Holding IP B.V. and Amsterdam Molecular
Therapeutics  (AMT)  Holding  N.V.  (incorporated  by  reference  to  Exhibit  10.30  of  the  Company's
registration statement on Form F-1 (file no. 333-193158) filed with the SEC on January 2, 2014).

10.21 Agreement for Transfer of Certain Assets and Liabilities of Amsterdam Molecular Therapeutics (AMT)
Holding N.V., dated as of February 16, 2012, by and among Amsterdam Molecular Therapeutics (AMT)
Holding B.V., Amsterdam Molecular Therapeutics (AMT) Holding IP B.V. and Amsterdam Molecular
Therapeutics  (AMT)  Holding  N.V.  (incorporated  by  reference  to  Exhibit  10.31  of  the  Company's
registration statement on Form F-1 (file no. 333-193158) filed with the SEC on January 2, 2014).

10.29† Investor  Agreement  by  and  between  uniQure  Biopharma  B.V.  and  Bristol-Myers  Squibb  Company
dated April 6, 2015 (incorporated by reference to Exhibit 4.32 of the Company's annual report on Form
20-F for the year ended December 31, 2014 (file no. 001-36294) filed with the SEC on April 7, 2015).

10.32 Lease relating to Paasheuvelweg 25, dated as of March 7, 2016, by and between 52 IFH GmbH & Co.
KG and uniQure biopharma B.V. (incorporated by reference to Exhibit 10.36 of the Company's annual
report on Form 10-K (file no. 001-36294) for the year ended December 31, 2016 filed with the SEC on
March 15, 2017).

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10.37† Assignment and License Agreement dated April 17, 2017 between Professor Paolo Simioni and uniQure
biopharma B.V. (incorporated by reference to Exhibit 10.1 of the Company’s current report on Form 8-
K (file no. 001-36294) filed with the SEC on October 19, 2017).

10.40 First Amendment Lease relating to 113 Hartwell Avenue, Lexington, Massachusetts, dated as of July 24,
2013, by and between the Company and King113 Hartwell LLC (incorporated by reference to Exhibit
10.1 of the Company's current report on form 8-K (file no. 001-36294) filed with the SEC on November
15, 2018).

10.41t Employee Share Purchase Plan (incorporated by reference to Exhibit 4.2 of the Company's registration

statement on Form S-8 (file no. 333-225629) filed with the SEC on June 14, 2018).

10.42 Second Amendment Lease relating to 113 Hartwell Avenue, Lexington Massachusetts, dated as of June
17,  2019,  by  and  between  the  Company  and  King  113  Hartwell  LLC  (incorporated  by  reference  to
Exhibit  10.42  of  the  Company’s  quarterly  report  on  Form  10-Q  (file  no.  001-36294)  for  the  period
ended June 30, 2019 filed with the SEC on July 29, 2019).

10.53† Commercialization and License Agreement by and between uniQure biopharma B.V. and CSL Behring
LLC dated June 24, 2020 (incorporated by reference to Exhibit 10.1 of the Company’s quarterly report
on Form 10-Q (file no. 001-36294) for the period ended June 30, 2020 filed with the SEC on July 30,
2020).

10.56t Employment  Agreement,  executed  September  14,  2020,  by  and  between  uniQure  Inc.  and  Ricardo
Dolmetsch (incorporated by reference to Exhibit 10.3 of the Company’s quarterly report on Form 10-Q
(file no. 001-36294) for the period ended September 30, 2020 filed with the SEC on October 27, 2020).

10.60t Amended  and  Restated  2014  Share  Incentive  Plan  (incorporated  by  reference  to  Exhibit  10.1  of  the
Company’s current report on Form 8-K (file no. 001-36294) filed with the SEC on November 17, 2023).

10.61t Employment Agreement, effective May 17, 2021, by and between uniQure biopharma B.V. and Pierre
Caloz (incorporated by reference to Exhibit 10.1 of the Company’s quarterly report on Form 10-Q (file
no. 001-36294) for the period ended June 30, 2021 filed with the SEC on July 26, 2021).

10.62t Equity  Side  Letter,  effective  May  17,  2021,  by  and  between  uniQure  N.V.  and  Pierre  Caloz
(incorporated  by  reference  to  Exhibit  10.2  of  the  Company’s  quarterly  report  on  Form  10-Q  (file  no.
001-36294) for the period ended June 30, 2021 filed with the SEC on July 26, 2021).

10.63t Amended  and  Restated  Employment  Agreement,  effective  June  15,  2021,  by  and  between  uniQure
biopharma  B.V.  and  Christian  Klemt  (incorporated  by  reference  to  Exhibit  10.3  of  the  Company’s
quarterly report on Form 10-Q (file no. 001-36294) for the period ended June 30, 2021 filed with the
SEC on July 26, 2021).

10.65t Form  of  Share  Option  Agreement,  effective  December  8,  2021,  under  the  2014  Share  Incentive  Plan
(incorporated by reference to Exhibit 10.65 of the Company’s annual report on Form 10-K for the year
ended December 31, 2021 (file no. 001-36294) filed with the SEC on February 25, 2022).

10.66t Form of Restricted Stock Unit Award, effective December 8, 2021, under the 2014 Share Incentive Plan
(incorporated by reference to Exhibit 10.66 of the Company’s annual report on Form 10-K for the year
ended December 31, 2021 (file no. 001-36294) filed with the SEC on February 25, 2022).

10.67†t Form  of  Performance  Stock  Unit  Award,  effective  December  8,  2021  under  the  2014  Share  Incentive
Plan (incorporated by reference to Exhibit 10.67 of the Company’s annual report on Form 10-K for the
year ended December 31, 2021 (file no. 001-36294) filed with the SEC on February 25, 2022).

10.68† Third Amended and Restated Loan and Security Agreement as of December 15, 2021, by and among
uniQure  biopharma  B.V.,  uniQure  Inc.,  uniQure  IP  B.V.,  the  Company  and  Hercules  Capital  Inc
(incorporated by reference to Exhibit 10.68 of the Company’s annual report on Form 10-K for the year
ended December 31, 2021 (file no. 001-36294) filed with the SEC on February 25, 2022).

10.69† Lease  Agreement  relating  to  20  Maguire  Road,  Lexington,  Massachusetts,  dated  as  of  December  22,
2021,  by  and  between  uniQure  Inc.  and  G&I  IX/GP4  20  Maguire  LLC  (incorporated  by  reference  to
Exhibit 10.69 of the Company’s annual report on Form 10-K for the year ended December 31, 2021 (file
no. 001-36294) filed with the SEC on February 25, 2022).

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10.70† Lease  Agreement  relating  to  91  Hartwell  Avenue,  Lexington,  Massachusetts,  dated  as  of  February  1,
2022,  by  and  between  uniQure  Inc.  and  NRL  91  Hartwell  LLC  (incorporated  by  reference  to  Exhibit
10.70 of the Company’s annual report on Form 10-K for the year ended December 31, 2021 (file no.
001-36294) filed with the SEC on February 25, 2022).

10.71† Amendment  No.  1  to  Third  Amended  and  Restated  Loan  and  Security  Agreement,  dated  of  May  12,
2023,  by  and  among  uniQure  biopharma,  B.V.,  uniQure,  Inc.,  uniQure  IP  B.V.,  the  Company  and
Hercules Capital, Inc. (incorporated by reference to Exhibit 10.1 of the Company’s quarterly report on
Form 10-Q for the period ended June 30, 2023 (file no. 001-36294) filed with the SEC on August 1,
2023).

10.72† Royalty Purchase Agreement, dated May 12, 2023, by and between uniQure biopharma B.V. and HemB
SPV, L.P. (incorporated by reference to Exhibit 10.2 of the Company’s quarterly report on Form 10-Q
for the period ended June 30, 2023 (file no. 001-36294) filed with the SEC on August 1, 2023).

10.73t Termination  and  Consulting  Agreement,  effective  October  4,  2023,  by  and  between  uniQure  Inc.  and
Ricardo Dolmetsch, Ph.D. (incorporated by reference to Exhibit 10.1 of the Company’s quarterly report
on  Form  10-Q  for  the  period  ended  September  30,  2023  (file  no.  001-36294)  filed  with  the  SEC  on
November 7, 2023).

10.74t* Employment Agreement dated July 30, 2021 between Corlieve Therapeutics AG and Richard Porter.

10.75t* First  Amended  Employment  Agreement  dated  April  1,  2022  between  Corlieve  Therapeutics  AG  and

Richard Porter.

10.76t* Letter  Agreement  dated  October  5,  2023,  by    and  between  Richard  Porter  and  Corlieve  Therapeutics

AG.

10.77t* Employment Agreement dated June 13, 2023 between uniQure, Inc. and Jeannette Potts.

14.1* Code of Ethics.

21.1* Subsidiaries of the Company.

23.1* Consent of Independent Registered Public Accounting Firm – KPMG Accountants N.V.

24.1* Power of Attorney (incorporated by reference to the signature page of this Annual Report on Form 10-

K).

31.1* Rule 13a-14(a)/15d-14(a) Certification of Chief Executive Officer.

31.2* Rule 13a-14(a)/15d-14(a) Certification of Chief Financial Officer.

32.1* Certification  of  Principal  Executive  Officer  and  Principal  Financial  Officer  pursuant  to  18  U.S.C.

Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

97.1* uniQure N.V. Compensation Clawback Policy.

101* The  following  materials  from  the  Company’s  Annual  Report  on  Form  10-K  for  the  year  ended
December  31,  2023,  formatted  in  Inline  XBRL  (eXtensible  Business  Reporting  Language):
(i)  Consolidated  Balance  Sheets,  (ii)  Consolidated  Statements  of  Operations  and  Comprehensive
Income (Loss), (iii) Consolidated Statements of Shareholders’ Equity, (iv) Consolidated Statements of
Cash Flows and (v) Notes to Consolidated Financial Statements.

104* The  cover  page  from  the  Company’s  Annual  Report  on  Form  10-K  for  the  year  ended  December  31,

2023, has been formatted in Inline XBRL.

† Confidential treatment requested as to certain portions, which portions have been omitted and filed separately with the

Securities and Exchange Commission

Filed herewith

Indicates a management contract or compensatory plan or arrangement.

*

t

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Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly

caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

SIGNATURES

Date: February 28, 2024

Date: February 28, 2024

UNIQURE N.V.

By:

By:

/s/ MATTHEW KAPUSTA
Matthew Kapusta
Chief Executive Officer (Principal Executive Officer)

/s/ CHRISTIAN KLEMT
Christian Klemt
Chief Financial Officer (Principal Financial Officer and
Principal Accounting Officer)

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and
appoints  Matthew  Kapusta  and  Christian  Klemt,  jointly  and  severally,  his  or  her  attorney-in-fact,  with  the  power  of
substitution, for him or her in any and all capacities, to sign any amendments to this Annual Report on Form 10-K and to
file  the  same,  with  exhibits  thereto  and  other  documents  in  connection  therewith,  with  the  Securities  and  Exchange
Commission, hereby ratifying and confirming all that each of said attorneys-in-fact, or his or her substitute or substitutes,
may do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, this Annual Report on Form 10-K has been

signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated.

Signatures

Title

Date

/s/ MATTHEW KAPUSTA
Matthew Kapusta

Chief Executive Officer and Director (Principal
Executive Officer)

February 28, 2024

/s/ CHRISTIAN KLEMT
Christian Klemt

Chief Financial Officer (Principal Financial Officer
and Principal Accounting Officer)

February 28, 2024

/s/ MADHAVAN BALACHANDRAN
Madhavan Balachandran

/s/ ROBERT GUT
Robert Gut

/s/ RACHELLE JACQUES
Rachelle Jacques

/s/ JACK KAYE
Jack Kaye

/s/ DAVID MEEK
David Meek

/s/ LEONARD POST
Leonard Post

/s/ PAULA SOTEROPOULOS
Paula Soteropoulos

/s/ JEREMY P. SPRINGHORN
Jeremy P. Springhorn

Director

Director

Director

Director

Director

Director

Director

Director

156

February 28, 2024

February 28, 2024

February 28, 2024

February 28, 2024

February 28, 2024

February 28, 2024

February 28, 2024

February 28, 2024

    
    
DESCRIPTION OF THE REGISTRANT’S SECURITIES
REGISTERED PURSUANT TO SECTION 12 OF THE
SECURITIES EXCHANGE ACT OF 1934

Exhibit 4.1

The following description sets forth certain material terms and provisions of uniQure N.V.’s (“uniQure N.V.”, “we,” “us,” and “our”)
securities  that  are  registered  under  Section  12  of  the  Securities  Exchange  Act  of  1934,  as  amended.  The  description  below  of  our
ordinary shares and provisions of our articles of association are summaries and are qualified by reference to our articles of association
and the applicable provisions of Dutch law.

DESCRIPTION OF CAPITAL STOCK

The  following  description  of  the  general  terms  and  provisions  of  our  ordinary  shares  is  a  summary  only  and  therefore  is  not
complete and is subject to, and qualified in its entirety by reference to, the terms and provisions of our articles of association. Our articles
of association have been filed with the SEC as an exhibit to the Annual Report on Form 10-K of which this Exhibit 4.1 is a part and you
should read the articles for provisions that may be important to you.

Authorized Ordinary Shares

Our articles of association provide an authorized share capital of 80,000,000 ordinary shares, each with a nominal value per share of

€0.05.

Form of Ordinary Shares

We issue our ordinary shares in registered book-entry form and such shares are not certificated.

NASDAQ Global Market Listing

Our ordinary shares are listed on The NASDAQ Global Market under the symbol "QURE."

Comparison of Dutch corporate law and our Articles of Association and Delaware corporate law

The  following  comparison  between  Dutch  corporate  law,  which  applies  to  us,  and  Delaware  corporate  law,  the  law  under  which
many publicly listed companies in the United States are incorporated, discusses additional matters not otherwise described in this exhibit.
This summary is subject to Dutch law, including Book 2 of the Dutch Civil Code and Delaware corporation law, including the Delaware
General Corporation Law.

Corporate governance

Duties of directors

The Netherlands.    We have a one tier board structure consisting of our executive directors and non-executive directors. Under the
one-tier board structure, both the executive and non-executive directors will be collectively responsible for the management performed
by the one-tier board and for the general policy and strategy of a company. The executive directors are responsible for the day-to-day
management  of  a  company.  The  non-executive  directors  are  responsible  for  supervising  the  conduct  of,  and  providing  advice  to,  the
executive directors and for providing supervision with respect to the company's general state of affairs. Each executive director and non-
executive  director  has  a  duty  to  act  in  the  corporate  interest  of  the  company.  Under  Dutch  law,  the  corporate  interest  extends  to  the
interests  of  all  corporate  stakeholders,  such  as  shareholders,  creditors,  employees,  customers  and  suppliers.  The  duty  to  act  in  the
corporate  interest  of  the  company  also  applies  in  the  event  of  a  proposed  sale  or  split-up  of  a  company,  whereby  the  circumstances
generally dictate how such duty is to be applied. Any resolution of the board regarding a significant change in the identity or character of
a company requires shareholders' approval.

Delaware.        The  board  of  directors  bears  the  ultimate  responsibility  for  managing  the  business  and  affairs  of  a  corporation.  In
discharging  this  function,  directors  of  a  Delaware  corporation  owe  fiduciary  duties  of  care  and  loyalty  to  the  corporation  and  to  its
stockholders.  Delaware  courts  have  decided  that  the  directors  of  a  Delaware  corporation  are  required  to  exercise  informed  business
judgment  in  the  performance  of  their  duties.  Informed  business  judgment  means  that  the  directors  have  informed  themselves  of  all
material information reasonably available to them. Delaware courts have also imposed a heightened standard of conduct upon directors
of a Delaware corporation who take any action designed to defeat a threatened change in control of the corporation. In addition, under
Delaware  law,  when  the  board  of  directors  of  a  Delaware  corporation  approves  the  sale  or  break-up  of  a  corporation,  the  board  of
directors may, in certain circumstances, have a duty to obtain the highest value reasonably available to the stockholders.

Director terms

The Netherlands.    Under Dutch law, executive directors of a listed company are generally appointed for a term of a maximum of
four years and reappointed for a term of a maximum of four years at a time. Non-executive directors of a listed company are generally
appointed for a term of a maximum of four years and reappointed once for another term of a maximum of four years.  Non-executive
directors of a listed company subsequently are typically reappointed for a term of a maximum of two years, which reappointment may be
extended by two years. Our executive and non-executive directors are, in principle, appointed by the general meeting of shareholders
upon the binding nomination of the non-executive directors.

The general meeting of shareholders is entitled at all times to suspend or dismiss a director. The general meeting of shareholders
may  only  adopt  a  resolution  to  suspend  or  dismiss  such  director  by  at  least  a  two-thirds  majority  of  the  votes  cast,  if  such  majority
represents more than half of the issued share capital of the company.

Delaware.    The Delaware General Corporation Law generally provides for a one-year term for directors, but permits directorships
to be divided into up to three classes with up to three-year terms, with the years for each class expiring in different years, if permitted by
a company's certificate of incorporation, an initial bylaw or a bylaw adopted by the stockholders. A director elected to serve a term on
such a classified board may not be removed by stockholders without cause. There is no limit in the number of terms a director may serve.

Director vacancies

The  Netherlands.        Under  Dutch  law,  directors  are  appointed  by  the  general  meeting  of  shareholders.  Under  our  articles  of
association,  directors  are,  in  principle,  appointed  by  the  general  meeting  of  shareholders  upon  the  binding  nomination  by  the  non-
executive  directors.  However,  the  general  meeting  of  shareholders  may  at  all  times  overrule  such  binding  nomination  by  a  resolution
adopted by at least a two-thirds majority of the votes cast, provided such majority represents more than half of the issued share capital of
our  company.  If  the  general  meeting  of  shareholders  overrules  the  binding  nomination,  the  non-executive  directors  must  make  a  new
nomination.

Delaware.    The Delaware General Corporation Law provides that vacancies and newly created directorships may be filled by a
majority of the directors then in office (even though less than a quorum) unless (1) otherwise provided in the certificate of incorporation
or bylaws of the corporation or (2) the certificate of incorporation directs that a particular class of stock is to elect such director, in which
case any other directors elected by such class, or a sole remaining director elected by such class, will fill such vacancy.

Conflict-of-interest transactions

The Netherlands.    Pursuant to Dutch law and our articles of association, directors may not take part in any discussion or decision-
making that involves a subject or transaction in relation to which they have a personal direct or indirect conflict of interest with us. Our
articles of association provide that if as a result thereof, the board is unable to act the resolution will be adopted by the general meeting of
shareholders.

Delaware.        The  Delaware  General  Corporation  Law  generally  permits  transactions  involving  a  Delaware  corporation  and  an

interested director of that corporation if:

·
·

·

the material facts as to the director's relationship or interest are disclosed and a majority of disinterested directors consent;
the  material  facts  are  disclosed  as  to  the  director's  relationship  or  interest  and  a  majority  of  shares  entitled  to  vote  thereon
consent; or
the  transaction  is  fair  to  the  corporation  at  the  time  it  is  authorized  by  the  board  of  directors,  a  committee  of  the  board  of
directors or the stockholders.

Shareholder rights

Voting rights

The Netherlands.    In accordance with Dutch law and our articles of association, each issued ordinary share confers the right to cast
one vote at the general meeting of shareholders. Each holder of ordinary shares may cast as many votes as it holds shares. Shares that are
held  by  us  or  our  direct  or  indirect  subsidiaries  do  not  confer  the  right  to  vote.  Dutch  law  does  not  permit  cumulative  voting  for  the
election of executive directors and non-executive directors.

For each general meeting of shareholders, a record date will be applied with respect to ordinary shares in order to establish which
shareholders are entitled to attend and vote at a specific general meeting of shareholders. Such record date is set by the board. The record
date and the manner in which shareholders can register and exercise their rights will be set out in the convocation notice of the meeting.

Delaware.    Under the Delaware General Corporation Law, each stockholder is entitled to one vote per share of stock, unless the
certificate  of  incorporation  provides  otherwise.  In  addition,  the  certificate  of  incorporation  may  provide  for  cumulative  voting  at  all
elections of directors of the corporation, or at elections held under specified circumstances. Either the certificate of incorporation or the
bylaws  may  specify  the  number  of  shares  and/or  the  amount  of  other  securities  that  must  be  represented  at  a  meeting  in  order  to
constitute a quorum, but in no event will a quorum consist of less than one third of the shares entitled to vote at a meeting.

Stockholders as of the record date for the meeting are entitled to vote at the meeting, and the board of directors may fix a record date
that is no more than 60 nor less than ten days before the date of the meeting, and if no record date is set then the record date is the close
of business on the day next preceding the day on which notice is given, or if notice is waived then the record date is the close of business
on the day next preceding the day on which the meeting is held. The determination of the stockholders of record entitled to notice or to
vote at a meeting of stockholders shall apply to any adjournment of the meeting, but the board of directors may fix a new record date for
the adjourned meeting.

Shareholder proposals

The Netherlands.    Pursuant to our articles of association, extraordinary general meetings of shareholders will be convened by the
board  or  by  those  who  are  authorized  by  law  or  pursuant  to  our  articles  of  association  to  do  so.  Pursuant  to  Dutch  law,  one  or  more
shareholders representing at least one-tenth of the issued share capital of the company may request the Dutch courts to order that they be
authorized by the court to convene a general meeting of shareholders. The court shall disallow the request if it does not appear that the
applicants have previously requested the board to convene a general meeting of shareholders and the board has taken the necessary steps
so that the general meeting of shareholders could be held within six weeks after the request.

The agenda for a general meeting of shareholders must include such items requested by one or more shareholders representing at
least 3% of the issued share capital of a company or such lower percentage as the articles of association may provide. Our articles of
association do not state such lower percentage.

Delaware.    Delaware law does not specifically grant stockholders the right to bring business before an annual or special meeting.
However, if a Delaware corporation is subject to the SEC's proxy rules, a stockholder who owns at least $2,000 in market value, or 1% of
the corporation's securities entitled to vote, may propose a matter for a vote at an annual or special meeting in accordance with those
rules.

Action by written consent

The Netherlands.    Under Dutch law, the articles of association of a company may provide that shareholders' resolutions may be
adopted  in  writing  without  holding  a  general  meeting  of  shareholders,  provided  that  the  resolution  is  adopted  unanimously  by  all
shareholders that are entitled to vote. For a listed company, this method of adopting resolutions is not feasible.

Delaware.    Although permitted by Delaware law, publicly listed companies do not typically permit stockholders of a corporation to

take action by written consent.

Appraisal rights

The Netherlands.    The concept of appraisal rights does not exist under Dutch law. However, pursuant to Dutch law a shareholder
who for its own account contributes at least 95% of our issued share capital may initiate proceedings against our minority shareholders
jointly  for  the  transfer  of  their  shares  to  it.  The  proceedings  are  held  before  the  Enterprise  Chamber  (Ondernemingskamer).  The
Enterprise Chamber may grant the claim for squeeze-out in relation to all minority shareholders and will determine the price to be paid
for the shares, if necessary after appointment of one or three experts who will offer an opinion to the Enterprise Chamber on the value to
be paid for the shares of the minority shareholders.

Furthermore, in accordance with Directive 2005/56/EC of the European Parliament and the Council of October 26, 2005 on cross-
border mergers of limited liability companies, Dutch law provides that, to the extent the acquiring company in a cross-border merger is
organized under the laws of another EU member state, a shareholder of a Dutch disappearing company who has voted against the cross-
border  merger  may  file  a  claim  with  the  Dutch  company  for  compensation.  The  compensation  is  to  be  determined  by  one  or  more
independent experts.

Delaware.    The Delaware General Corporation Law provides for stockholder appraisal rights, or the right to demand payment in

cash of the judicially determined fair value of the stockholder's shares, in connection with certain mergers and consolidations.

Shareholder suits

The Netherlands.    In the event a third party is liable to a Dutch company, only a company itself can bring a civil action against that
third party. An individual shareholder does not have the right to bring an action on behalf of a company. This individual shareholder may,
in its own name, have an individual right to take action against such third party in the event that the cause for the liability of that third
party  also  constitutes  a  tortious  act  directly  against  that  individual  shareholder.  The  Dutch  Civil  Code  provides  for  the  possibility  to
initiate such action collectively. A collective action can be instituted by a foundation or an association whose objective is to protect the
rights  of  a  group  of  persons  having  similar  interests.  The  collective  action  itself  cannot  result  in  an  order  for  payment  of  monetary
damages but may only result in a declaratory judgment (verklaring voor recht) regarding liability. In order to obtain montetary damages,
the  foundation  or  association  and  the  defendant  may  reach—often  on  the  basis  of  such  declaratory  judgment—a  collective  settlement
agreement. A Dutch court may declare the collective settlement agreement binding upon the members of the class with an opt-out right
for an individual injured party. An individual injured party may also itself—outside the collective action—reach an individual settlement
agreement  (and  have  it  declared  binding  by  the  Dutch  court)  or  institute  an  action  for  monetary  damages.  Since  January  1,  2020,  a
collective  action  relating  to  an  event  on  or  after  November  15,  2016  can,  however,  also  result  in  an  order  for  payment  of  monetary
damages.  As  a  general  rule,  a  court  decision  granting  or  dismissing  the  collective  action  is  binding  on  all  members  of  the  class  who
reside in the Netherlands and did not use their right to opt out of the collective action (earlier on in the collective action, as soon as the
class was defined and the scope of the collective action was determined by the Dutch court) as well as to members of the class residing
abroad who joined the collective action by opting in.  

Delaware.    Under the Delaware General Corporation Law, a stockholder may bring a derivative action on behalf of the corporation
to enforce the rights of the corporation. An individual also may commence a class action suit on behalf of himself and other similarly
situated stockholders where the requirements for maintaining a class action under Delaware law have been met. A person may institute
and maintain such a suit only if that person was a stockholder at the time of the transaction which is the subject of the suit. In addition,
under Delaware case law, the plaintiff normally must be a stockholder at the time of the transaction that is the subject of the suit and
throughout the duration of the derivative suit. Delaware law also requires that the derivative plaintiff make a demand on the directors of
the corporation to assert the corporate claim before the suit may be prosecuted by the derivative plaintiff in court, unless such a demand
would be futile.

Repurchase of shares

The Netherlands.    Under Dutch law, a company such as ours may not subscribe for newly issued shares in its own share capital.
Such  company  may,  however,  subject  to  certain  restrictions  under  Dutch  law  and  its  articles  of  association,  acquire  shares  in  its  own
share  capital.  We  may  acquire  fully  paid-up  shares  in  our  own  share  capital  at  any  time  for  no  valuable  consideration.  Furthermore,
subject  to  certain  provisions  of  Dutch  law  and  our  articles  of  association,  we  may  repurchase  fully  paid-up  shares  in  our  own  share
capital  if  (1) such  repurchase  would  not  cause  our  shareholders'  equity  to  fall  below  an  amount  equal  to  the  sum  of  the  paid-up  and
called-up part of the issued share capital and the reserves we are required to maintain pursuant to applicable law and (2) we would not as
a result of such repurchase hold more than 50% of our own issued share capital.

Other than shares acquired for no valuable consideration, ordinary shares may only be acquired following a resolution of our board,
acting pursuant to an authorization for the repurchase of shares granted by the general meeting of shareholders. An authorization by the
general  meeting  of  shareholders  for  the  repurchase  of  shares  can  be  granted  for  a  maximum  period  of  18 months.  Such  authorization
must specify the number of shares that may be acquired, the manner in which these shares may be acquired and the price range within
which the shares may be acquired. Our board has been authorized, for a period of 18 months to be calculated from the date of the annual
general meeting of shareholders held on June 13, 2023, to cause the repurchase of ordinary shares by us of up to 10% of our issued share
capital, for a price per share between the nominal value of the ordinary shares and an amount of 110% of the highest price of the ordinary
shares  officially  quoted  on  any  of  the  official  stock  markets  we  are  listed  on  during  any  of  30  banking  days  preceding  the  date  the
repurchase is effected or proposed.

No  authorization  of  the  general  meeting  of  shareholders  is  required  if  fully  paid-up  ordinary  shares  are  acquired  by  us  with  the
intention  of  transferring  such  ordinary  shares  to  our  employees  under  an  applicable  employee  stock  purchase  plan,  provided  such
ordinary shares are officially quoted on any of the official stock markets.

Delaware.    Under the Delaware General Corporation Law, a corporation may purchase or redeem its own shares unless the capital
of the corporation is impaired or the purchase or redemption would cause an impairment of the capital of the corporation. A Delaware
corporation may, however, purchase or redeem out of capital any of its preferred shares or, if no preferred shares are outstanding, any of
its  own  shares  if  such  shares  will  be  retired  upon  acquisition  and  the  capital  of  the  corporation  will  be  reduced  in  accordance  with
specified limitations.

Anti-takeover provisions

The Netherlands.    Under Dutch law, various protective measures are possible and permissible within the boundaries set by Dutch
statutory law and Dutch case law. We have adopted several provisions that may have the effect of making a takeover of our company
more difficult or less attractive, including:

● the staggered three-year terms of our directors, as a result of which only approximately one-third of our directors will be subject

·

to election in any one year;
a  provision  that  our  directors  may  only  be  dismissed  or  suspended  at  the  general  meeting  of  shareholders  by  a  two-thirds
majority of votes cast representing more than half of our issued share capital;

● a provision that our directors may only be appointed upon binding nomination of the non-executive directors, which can only be
overruled by the general meeting of shareholders with a two-thirds majority of votes cast representing at least 50% of our issued
share capital; and
requirements  that  certain  matters,  including  an  amendment  of  our  articles  of  association,  may  only  be  brought  to  our
shareholders for a vote upon a proposal by our board.

·

Moreover, according to Dutch corporate law, our board can invoke a cooling-off period of up to 250 days in the event of an unsolicited
takeover  bid  or  certain  shareholder  activism.  During  a  cooling-off  period,  our  general  meeting  of  shareholders  would  not  be  able  to
dismiss,  suspend  or  appoint  directors  (or  amend  the  provisions  in  our  articles  of  association  dealing  with  those  matters)  except  at  the
proposal of our board.

Delaware.        In  addition  to  other  aspects  of  Delaware  law  governing  fiduciary  duties  of  directors  during  a  potential  takeover,  the
Delaware  General  Corporation  Law  also  contains  a  business  combination  statute  that  protects  Delaware  companies  from  hostile
takeovers and from actions following the takeover by prohibiting some transactions once an acquirer has gained a significant holding in
the corporation.

·

·

·

Section 203 of the Delaware General Corporation Law prohibits "business combinations," including mergers, sales and leases of
assets,  issuances  of  securities  and  similar  transactions  by  a  corporation  or  a  subsidiary  with  an  interested  stockholder  that
beneficially  owns  15%  or  more  of  a  corporation's  voting  stock,  within  three  years  after  the  person  becomes  an  interested
stockholder, unless: the transaction that will cause the person to become an interested stockholder is approved by the board of
directors of the target prior to the transactions;
after the completion of the transaction in which the person becomes an interested stockholder, the interested stockholder holds at
least 85% of the voting stock of the corporation not including shares owned by persons who are directors and representatives of
interested stockholders and shares owned by specified employee benefit plans; or
after  the  person  becomes  an  interested  stockholder,  the  business  combination  is  approved  by  the  board  of  directors  of  the
corporation and holders of at least 66.67% of the outstanding voting stock, excluding shares held by the interested stockholder.

A  Delaware  corporation  may  elect  not  to  be  governed  by  Section  203  by  a  provision  contained  in  the  original  certificate  of
incorporation  of  the  corporation  or  an  amendment  to  the  original  certificate  of  incorporation  or  to  the  bylaws  of  the  company,  which
amendment must be approved by a majority of the shares entitled to vote and may not be further amended by the board of directors of the
corporation. Such an amendment is not effective until twelve months following its adoption.

Inspection of books and records

The  Netherlands.        Our  board  provides  the  shareholders,  at  the  general  meeting  of  shareholders,  with  all  information  that  the
shareholders require for the exercise of their powers, unless doing so would be contrary to an overriding interest of ours. Our board must
give reason for electing not to provide such information on the basis of an overriding interest.

Delaware.        Under  the  Delaware  General  Corporation  Law,  any  stockholder  may  inspect  certain  of  the  corporation's  books  and

records, for any proper purpose, during the corporation's usual hours of business.

Removal of directors

The Netherlands.        Under  our  articles  of  association,  the  general  meeting  of  shareholders  is  at  all  times  entitled  to  suspend  or
dismiss a director. The general meeting of shareholders may only adopt a resolution to suspend or dismiss such a member by at least a
two-thirds majority of the votes cast, provided such majority represents more than half of the issued share capital of our company.

Delaware.    Under the Delaware General Corporation Law, any director or the entire board of directors may be removed, with or
without cause, by the holders of a majority of the shares then entitled to vote at an election of directors, except (1) unless the certificate
of incorporation provides otherwise, in the case of a corporation whose board is classified, stockholders may effect such removal only for
cause, or (2) in the case of a corporation having cumulative voting, if less than the entire board is to be removed, no director may be
removed without cause if the votes cast against his removal would be sufficient to elect him if then cumulatively voted at an election of
the entire board of directors, or, if there are classes of directors, at an election of the class of directors of which he is a part.

Preemptive rights

The Netherlands.    Under Dutch law, in the event of an issuance of ordinary shares, each shareholder will have a pro rata preemptive
right in proportion to the aggregate nominal value of the ordinary shares held by such holder (with the exception of ordinary shares to be
issued to employees or ordinary shares issued against a contribution other than in cash). Under our articles of association, the preemptive
rights in respect of newly issued ordinary shares may be restricted or excluded by a resolution of the general meeting of shareholders
upon proposal of our board. The general meeting of shareholders may designate our board to restrict or exclude the preemptive rights in
respect  of  newly  issued  ordinary  shares.  Such  designation  can  be  granted  for  a  period  not  exceeding  five  years.  A  resolution  of  the
general meeting of shareholders to restrict or exclude the preemptive rights or to designate the board as the authorized body to do so
requires a two-thirds majority of the votes cast, if less than one half of our issued share capital is represented at the meeting. The same
applies to the granting of rights to subscribe for our ordinary shares but does not apply to the issuance of our ordinary shares pursuant to
the exercise of a previously acquired right to subscribe for our ordinary shares.

At our annual general meeting of shareholders held on June 14, 2022, the general meeting of shareholders resolved to authorize our
board for a period of 18 months with effect from the date of the meeting to restrict or exclude preemptive rights accruing to shareholders
in connection with the issue of ordinary shares or rights to subscribe for ordinary shares. This authorization expired on December 14,
2023, and thus, as of the date of this report, our board does not have the authority to restrict or exclude preemptive rights of shareholders
in connection with the issuance of ordinary shares or rights to subscribe for ordinary shares.  Without this authorization, only the general
meeting of shareholders has the power to restrict or exclude preemptive rights upon the proposal of the board.

Delaware.    Under the Delaware General Corporation Law, stockholders have no preemptive rights to subscribe for additional issues
of  stock  or  to  any  security  convertible  into  such  stock  unless,  and  to  the  extent  that,  such  rights  are  expressly  provided  for  in  the
certificate of incorporation.

Dividends

The Netherlands.        Dutch  law  provides  that  dividends  may  be  distributed  after  adoption  of  the  annual  accounts  by  the  general
meeting of shareholders from which it appears that such dividend distribution is allowed. Moreover, dividends may be distributed only to
the extent that the shareholders' equity exceeds the amount of the paid-up and called-up part of the issued share capital of the company
and the reserves that must be maintained under the law or the articles of association. Interim dividends may be declared as provided in
the articles of association and may be distributed to the extent that the shareholders' equity exceeds the amount of the paid-up and called-
up part of the issued share capital of the company and the reserves that must be maintained under the law or the articles of association, as
apparent from an interim statement of assets and liabilities.

Under our articles of association, any amount of profit may be carried to a reserve as our board determines. After reservation by our
board of any profit, the remaining profit will be at the disposal of the shareholders. Our corporate policy is to only make a distribution of
dividends  to  our  shareholders  after  the  adoption  of  our  annual  accounts  demonstrating  that  such  distribution  is  legally  permitted.
However, our board is permitted to declare interim dividends without the approval of the general meeting of shareholders.

Dividends will be made payable not later than thirty days after the date they were declared unless the body declaring the dividend
determines  a  different  date.  Claims  to  dividends  not  made  within  five  years  and  one  day  from  the  date  that  such  dividends  became
payable will lapse and any such amounts will be considered to have been forfeited to us (verjaring).

Delaware.    Under the Delaware General Corporation Law, a Delaware corporation may pay dividends out of its surplus (the excess
of net assets over capital), or in case there is no surplus, out of its net profits for the fiscal year in which the dividend is declared and/or
the preceding fiscal year (provided that the amount of the capital of the corporation is not less than the aggregate amount of the capital
represented  by  the  issued  and  outstanding  stock  of  all  classes  having  a  preference  upon  the  distribution  of  assets).  In  determining  the
amount  of  surplus  of  a  Delaware  corporation,  the  assets  of  the  corporation,  including  stock  of  subsidiaries  owned  by  the  corporation,
must be valued at their fair market value as determined by the board of directors, without regard to their historical book value. Dividends
may be paid in the form of shares, property or cash.

Shareholder vote on certain reorganizations

The  Netherlands.        Under  Dutch  law,  the  general  meeting  of  shareholders  must  approve  resolutions  of  the  board  relating  to  a

significant change in the identity or the character of the company or the business of the company, which includes:

·
·

·

a transfer of the business or virtually the entire business to a third party;
the entry into or termination of a long-term cooperation of the company or a subsidiary with another legal entity or company or
as a fully liable partner in a limited partnership or general partnership, if such cooperation or termination is of a far-reaching
significance for the company; and
the acquisition or divestment by the company or a subsidiary of a participating interest in the capital of a company having a
value of at least one third of the amount of its assets according to its balance sheet and explanatory notes or, if the company
prepares a consolidated balance sheet, according to its consolidated balance sheet and explanatory notes, according to the last
adopted annual accounts of the company.

Delaware.    Under the Delaware General Corporation Law, the vote of a majority of the outstanding shares of capital stock entitled
to  vote  thereon  generally  is  necessary  to  approve  a  merger  or  consolidation  or  the  sale  of  all  or  substantially  all  of  the  assets  of  a
corporation.  The  Delaware  General  Corporation  Law  permits  a  corporation  to  include  in  its  certificate  of  incorporation  a  provision
requiring  for  any  corporate  action  the  vote  of  a  larger  portion  of  the  stock  or  of  any  class  or  series  of  stock  than  would  otherwise  be
required.

Under  the  Delaware  General  Corporation  Law,  no  vote  of  the  stockholders  of  a  surviving  corporation  to  a  merger  is  needed,
however, unless required by the certificate of incorporation, if (1) the agreement of merger does not amend in any respect the certificate
of  incorporation  of  the  surviving  corporation,  (2) the  shares  of  stock  of  the  surviving  corporation  are  not  changed  in  the  merger  and
(3) the number of shares of common stock of the surviving corporation into which any other shares, securities or obligations to be issued
in the merger may be converted does not exceed 20% of the surviving corporation's common stock outstanding immediately prior to the
effective date of the merger. In addition, stockholders may not be entitled to vote in certain mergers with other corporations that own
90% or more of the outstanding shares of each class of stock of such corporation, but the stockholders will be entitled to appraisal rights.

Remuneration of directors

The Netherlands.    Under Dutch law and our articles of association, we must adopt a remuneration policy for our directors. Such
remuneration  policy  shall  be  adopted  by  the  general  meeting  of  shareholders  upon  the  proposal  of  our  non-executive  directors.  The
remuneration  of  our  executive  directors  will  be  determined  by  our  non-executive  directors  with  due  observance  of  our  remuneration
policy; the remuneration of our non-executive directors will be determined by the board with due observance of our remuneration policy.

Delaware.        Under  the  Delaware  General  Corporation  Law,  the  stockholders  do  not  generally  have  the  right  to  approve  the
compensation policy for directors or the senior management of the corporation, although certain aspects of executive compensation may
be subject to binding or advisory stockholder votes due to the provisions of U.S. federal securities and tax law, as well as stock exchange
requirements.

Transfer Agent and Registrar

Computershare Trust Company, N.A. serves as transfer agent and registrar for our ordinary shares.

Employment Agreement

dated 30 July 2021 (the Effective Date)

by and between

Corlieve Therapeutics AG,
Switzerland Innovation Park
Basel Area AG
Gewerbestrasse 24
4123 Allschwil, Switzerland

and

Richard Porter
A British citizen born [***] in [***], England, and
currently residing at [***]

Exhibit 10.74

(the Company)

(the Employee)

(The Company and the Employee are also referred to as Party or Parties; this employment agreement referred to
as the Employment Agreement and the Agreement.)

1.

Condition Precedent

The  terms  of  the  Employment  Agreement  are  contingent  upon  the  Executive’s  agreement  to  amend  the
terms of the free share allocations dated July 24, 2020 and September 29, 2020 from Corlieve Therepeutics
SAS (the AGAs) such that vesting will occur on the earlier of (i) the six-month anniversary of the closing
of the transaction if the Executive remains employed by Corlieve (or other subsidiary of the Company as
may  be  reasonably  agreed  by  the  parties),  (ii)  the  termination  without  good  cause  of  Executive’s
employment by the employer and (iii) a Change of Control of the Company.

2.

Commencement Date

This  Employment  shall  start  on  30  July  2021  (the  Commencement Date).  It  shall  be  concluded  for  an
indefinite period.

The spirit of this Employment Agreement is a transfer of the existing employment contract (Mandate dated
October 29, 2019), subject to certain changes that have been negotiated, from Corlieve Therapeutics SAS
to uniQure.  For purposes of calculating length of employment and any benefits and security related to the
length of employment, the transition should not result in a loss of security or benefit for the employee due
to the transition and the Employee’s employment shall be considered continuous beginning as of October
29, 2019.

3.

Function and Job Title

The  Employee  shall  assume  the  title  as  General  Manager,  Corlieve  and  the  function  of  lead  of  the
Company’s research & development for therapies to treat epilepsy and other CNS disorders on a full-time
basis as provided in Article 15 of this Agreement. The function and/or the job title may be adjusted by the
Company at any time to reflect current circumstances.  Employee will report to the President, Research &
Development of uniQure N.V.

If  requested,  the  Executive  will  serve  as  a  director  of  the  Company  and  Corlieve  Therapeutics  SAS,
subject to the discretion of uniQure, N.V. to appoint and remove directors of those companies.

The detailed duties of the Employee are s the customary role of a General Manager or other role or title
that may be agreed to following commencement of Employment.  Following the commencement date of
this Agreement, the Employee and Employer agree to develop a reasonable job description describing the
duties and responsibilities of Employee in more detail and reflecting the integration of the Employee into
the uniQure Group Companies.

4.

Group Structure

The Employee acknowledges that the Company is part of a group of companies ultimately controlled by
uniQure  N.V.  (each  such  company  including  the  holding  company  a  Group  Company,  together  the
Group). The Employee acknowledges that the Employee will need

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to work with and/or report to other employees and/or officers of other Group Companies. The Employee
acknowledges that this does not create separate employment relationships with other Group Companies.

5.

Duties and Responsibilities

It  is  understood  that  the  duties  and  responsibilities  arising  out  of  the  above  function  include  all  tasks
customarily or reasonably incidental to such function.

The  Company  may  assign  to  the  Employee  any  other,  additional  or  new  duties  or  responsibilities  as
deemed reasonable or appropriate by the Company in the course and fulfilment of its business.

The  Employee  undertakes  to  use  the  Employee’s  entire  working  ability  to  fulfill  the  Employee’s
contractual obligations and to loyally safeguard and foster the business and the interests of the Company.
The Employee shall carefully perform all work and tasks assigned to the Employee.

6.

Work for Third Parties

The  Employee  is  not  entitled  to  work  for  any  third  party  or  to  engage  in  any  gainful  or  unpaid
employment, whether full-time or part-time, for the duration of the Employment Agreement without the
prior written approval of the Company.

Membership  of  the  boards  of  directors  of  other  companies  and  other  institutions  that  are  related  to  the
business purpose of the Company or otherwise affect the interests of the Company or a Group Company
also requires the prior consent of the Company. Consent will not be unreasonably withheld if there is no
conflict of interest with regard to the Company.

7.

Officer Position

In fulfilment of the Employee’s duties, the Employee may have to act as officer, director or in any other
corporate  function  within  the  Company  or  any  Group  Company.  The  Company  may  decide  at  its  full
discretion  when  such  function  shall  end,  and  the  Employee  will  retire  from  such  functions  and  sign  the
necessary documentation upon first request.

The  base  salary  as  defined  in  Section  11.1  includes  any  and  all  remuneration  for  such  functions  and
positions. In case the law provides for a mandatory remuneration the Company will decide whether such
compensation shall be forwarded to the Company or be set off against the base salary as defined in Section
11.1 paid to the Employee by the Company.

8.

Conflict of Interests

The Employee shall avoid any conflict of interest and inform the Company immediately if any potential
conflict of interest arises.

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A conflict of interest arises especially in case of a participation in suppliers or clients of the Company or in
a Group Company.

9.

Gifts

In connection with the performance of his duties, the Employee is prohibited from accepting or stipulating,
either directly or indirectly, any commission, reimbursement or payment, in whatever form, or gifts from
third parties. The foregoing does not apply to standard promotional gifts having little monetary value.

10.

Place of Work

The Employees primary place of work shall be at the offices of the Company.

The Employee understands and agrees that the Employee may, in the course of the Employment and where
reasonably requested by the Company, be required to travel to and work in other places and countries in
order to perform the Employee’s obligations and duties under the Employment Agreement. In particular,
the  Employee  will  need  to  be  present  from  time  to  time  in  the  head  offices  of  the  Company  in  the
Netherlands.

The Employee is obliged to track any days not worked in Switzerland, including place of work, and submit
such schedule regularly to the Company upon request.

The  Company  will  work  with  you  to  determine  a  reasonable  budget  for  costs  associated  with  travel
between  your  home  in  Switzerland,  and  Company  facilities  in  Amsterdam,  Netherlands  and  Lexington,
Massachusetts to include airfare, lodging and associated expenses while doing business on behalf of the
Company.

11.

Compensation

11.1. Base Salary

The Employee shall receive an annual base salary of Three Hundred Fifty Thousand CHF (CHF 350,000)
per year gross (the Base Salary), payable in 12 monthly instalments at the end of the month to a bank or
postal  account  to  be  specified  by  the  Employee.    Alternatively,  you  may  be  paid  in  instalments  in
accordance with the regular payroll practices of the Group Companies.

11.2. Bonus

The Employee may, if applicable, participate in a bonus program of the Company or a Group Company,
which  the  Company  or  the  issuing  Group  Company  shall  determine  at  its  full  discretion.  If  no  bonus
program is issued, any bonus shall be determined at the discretion of the Company.

The Company may set targets for the bonus, according to which the amount of the bonus is determined.
However, the Company is free to deviate at its own discretion upwards or

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downwards from the targets set in its final determination of the bonus. If no targets are set, any bonus shall
be determined at the discretion of the Company.

Initially, the target bonus (“Target Bonus”) shall correspond to 40% of the Base Salary for a full financial
year.

The Target Bonus (as well as any merit increase or other compensation for which you may be eligible) will
be prorated in the first calendar year of employment based on the total number of days worked during the
calendar year.

In the event of termination of the Employment, the Employee has no entitlement to a bonus, not even on a
pro  rata  basis.    To  be  eligible  for  any  bonus  pursuant  to  this  Agreement  or  otherwise  pursuant  to
Employee’s employment with Employer, Employee must be in service of Employer on the date any bonus
is paid.

11.3. Participation Plan

The Employee may be given the opportunity by uniQure N.V. to participate in the growth of the Group
pursuant to a participation plan such as, for instance, an employee share option plan or a share plan, and as
amended from time to time (the Participation Plan). It is in the full discretion of uniQure N.V. to issue
and/or to unilaterally amend such Participation Plan at any time.

The  Employee  expressly  acknowledges  that  the  Employee  does  not  have  any  right  or  claim  under  the
Participation Plan against the Company, but only against uniQure N.V. or the Group Company issuing the
Participation  Plan.  The  Employee  also  confirms  that  any  participation  in  the  Participation  Plan  does  not
constitute an employment relationship with uniQure N.V. or the issuing Group Company.

11.4. Acknowledgements of the Employee

The Employee acknowledges and agrees that any entitlements granted, and payments made in addition to
the Base Salary, including, but not limited to any bonuses, participations, or gratuities of the Company or
any Group Company (the Additional Payments) are not part of the salary legally or contractually owed
by  the  Company  and  are  made  at  full  discretion  of  the  Company  or  the  Group  Company  granting  such
bonus, participation or gratuity. Any Additional Payments shall not create any obligation of the Company
or any Group Company to make such Additional Payments in the future and shall not create any right or
claim of the Employee to such Additional Payments in the future even if paid over consecutive years and
without express reservation.

11.5. No other Compensation

The  Employee  acknowledges  and  agrees  that  the  Employee  shall  not  be  entitled  to  receive  any  other
compensation  or  benefit  of  any  nature  from  the  Company  except  as  expressly  provided  for  in  this
Employment Agreement.

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11.6. Social security, tax and deductions

Until  retirement  age  and  while  this  Agreement  is  effective,  the  Employee  is  insured  according  to  the
Federal  Laws  on  old  age  (AHVG),  disability  (IVG),  compensation  for  the  loss  of  earnings  (EOG),
unemployment insurance (AVIG), accident insurance (UVG), sickness benefits insurance and pension plan
(BVG).  The  Corlieve  insurance  and  pension  provisions  in  existence  as  of  the  commencement  date  of
employment will be carried forward unless and until modifications are legally required or a new scheme is
adopted  by  the  Employer.    From  any  and  all  gross  compensation  hereunder  –  if  provided  by  law,
regulations or policies – any portions of the Employee’s contributions to the sickness benefits insurance, if
any,  and  withholding  taxes,  if  any,  will  be  deducted  and  withheld  by  the  Company  from  the  payments
made to the Employee.

Any portions of the Employee’s social security contributions in accordance with the AHVG, IVG, EOG,
AVIG,  UVG  and  premiums  to  pension  schemes  (BVG)  must  be  paid  by  the  Employee  to  the  respective
insurance institutions in Switzerland in accordance with the separately signed agreement according to art.
21 para. 2 of Regulation (EC) No. 987/09 as per Annex B to this Employment Agreement. In accordance
with said agreement is the Employee further obliged to pay the Company’s social security contributions
portions  in  accordance  with  the  AHVG,  IVG,  EOG,  AVIG,  UVG  and  premiums  to  pension  schemes
(BVG). Therefore, the Company transfers any and all compensation hereunder after having deducted any
portions of the Employee’s contributions to the sickness benefits insurance, if any, and withholding taxes,
if  any.  In  addition,  the  Company  transfers  the  Company’s  social  security  contributions  portions  in
accordance  with  the  AHVG,  IVG,  EOG,  AVIG,  UVG  and  premiums  to  pension  schemes  (BVG)  as
provided by law, regulations or policies, to the Employee.

The  Company  reserves  the  right  to  unilaterally  terminate  this  agreement  according  to  art.  21  para.  2  of
Regulation (EC) No. 987/09 at any time, to register as a different company and to pay any social security
contributions  due  (employee  and  employer  contributions).  In  case  of  such  unilateral  termination  of  said
agreement,  the  Employee  shall  be  notified  by  the  Company  in  due  time.  In  this  case,  from  any  and  all
gross  compensation  hereunder  –  if  provided  by  law,  regulations  or  policies  –  any  portions  of  the
Employee’s social security contributions in accordance with the AHVG, IVG, EOG, AVIG, UVG, sickness
benefits insurance, if any, premiums to pension schemes and withholding taxes, if any, will be deducted
and withheld by the Company from the payments made to the Employee.

Where it will not be possible anymore to remain in the Swiss social security system, the Employee will be
insured  according  to  the  applicable  social  security  system  in  accordance  with  the  respective  applicable
legislation, Company policies, as well as insurance policies and regulations.

12.

Expenses

The  Employee  shall  be  entitled  to  reimbursement  by  the  Company  of  out-of-pocket  business  expenses
reasonably incurred by the Employee during the Employment in the performance of the Employee’s duties
under this Employment Agreement. The provisions

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in Section 10 shall be reserved. However, the reimbursement is subject to (i) the submission of relevant
vouchers and receipts indicating the amount and purpose of the expenses, and (ii) the compliance with the
reimbursement policies of the Company issued and unilaterally amended from time to time.

13.

Termination

13.1. Reserved.

13.2. Termination

After expiration of the probation period, the Employment may be terminated by either Party with a notice
period of 4 (four) months (the “Notice Period”).

Upon observance of the notice period, termination shall be effective as of the end of a calendar day and not
the end of a calendar month.

The Employment is being terminated automatically at the end of the month in which the Employee reaches
the retirement age according to the Federal Law on Old-age and Survivors’ Insurance (AHVG). In case of a
permanent disability to work the same applies. In case of a partial permanent disability the Employment
ends to the same extent as the Employee is declared disabled.

13.3. Severance Generally

lf the Employment is terminated by the Company, except

(i)

(ii)

(iii)

in case of a summary dismissal for good cause by the Company (in accordance with Article 337
CO);

in case the Employee having given the Company good cause to do so (in accordance with Article
340c(2) CO);

in case the Employee the Employee is in breach of any duties and failed to remedy such breach
within 30 days after having been asked in writing to do so;

(iv)

in case the Employee is terminated after an illness lasting for at least 6 months; or

(v)

in case of poor performance after having been put on a performance improvement plan for at least
90 days and having failed to meet the set targets,

then the Company shall grant the Employee severance pay (Severance) equal to

(vi)

100% of the annual Base Salary (less any pay received during the Notice Period);

(vii)

100% an amount corresponding to the target Bonus (i.e., 40% of Base Salary) amount of the Target
Bonus; plus

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(viii)

an amount corresponding to a prorated target Bonus amount for the year of termination as
provided. The pro-rata Bonus shall be the product of the formula B x D/365 where B represents the
target Bonus (i.e., 40% of the Base Salary), and D represents the number of days elapsed in the
calendar year through the date of notice to the Employee),

Any severance payment is subject to the condition that the Employee signs a termination agreement with
the Company including a full waiver of any other claims and the reinstatement of all restrictive covenants.
For the avoidance of any doubt, no other bonus or severance shall become payable in such case.Except as
expressly provided in this clause, bonus payments, if any, will not be taken into account for the calculation
of any possible severance payment upon termination of the Agreement.

13.4. Severance on a Change of Control

lf the Employment is terminated by the Company within the period beginning ninety (90) days before and
continuing  until  twelve  (12)  months  after  a  Change  of  Control  (as  defined  below),  and  subject  to  the
conditions for Severance as per Section 13.3 above being fulfilled and in lieu of the severance provided in
Section  13.3,  the  Company  shall  grant  the  Employee  a  severance  pay  (Change  of  Control  Severance)
equal to

(i)

(ii)

(iii)

150% of the annual Base Salary (less any pay received during the Notice Period);

150% an amount corresponding to the Target Bonus (i.e., 40% of Base Salary) amount of the
Target Bonus; plus

an amount corresponding to a prorated Target Bonus amount for the year of termination as
provided. The pro-rata Bonus shall be the product of the formula B x D/365 where B represents the
Target Bonus (i.e., 40% of the Base Salary), and D represents the number of days elapsed in the
calendar year through the date of notice to the Employee).

The  Change  of  Control  Severance  is  subject  to  the  condition  that  the  Employee  signs  a  termination
agreement  with  the  Company  including  a  full  waiver  of  any  other  claims  and  the  reinstatement  of  all
restrictive covenants. For the avoidance of any doubt, no other bonus or severance shall become payable in
such  case.Except  as  expressly  provided  in  this  clause,  bonus  payments,  if  any,  will  not  be  taken  into
account for the calculation of any possible severance payment upon termination of the Agreement.

In the event of a Change of Control of uniQure N.V. as defined below and provided that the Company is
directly  or  indirectly  a  subsidiary  or  affiliate  of  uniQure  N.V.  upon  such  Change  of  Control  event,  the
vesting  conditions  that  may  apply  to  any  stock  options,  restricted  shares,  restricted  stock  units,
performance stock units or other grants of equity held by Employee pursuant to this Agreement and the
Company’s Amended and Restated 2014 Share Incentive Plan will be automatically waived and shall be
deemed fully vested immediately prior to the Change of Control event. All Stock Options will be deemed
to  be  fully  exercisable  commencing  on  the  date  of  and  immediately  prior  to  the  Change  of  Control  and
ending on the

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eighteen (18) month anniversary of the Change of Control or, if earlier, the expiration of the term of such
Stock Options

For the purposes of this Employment Agreement, Change of Control shall mean with respect to uniQure
N.V. the date on which any of the following events occurs:

a)

b)

c)

any  “person,”  as  such  term  is  used  in  Sections  13(d)  and  14(d)  of  the  United  States  Securities
Exchange Act of 1934, as amended (the Act) (other than uniQure N.V., any of its subsidiaries, or
any trustee, fiduciary or other person or entity holding securities under any employee benefit plan
or trust of uniQure N.V. or any of its subsidiaries), together with all “affiliates” and “associates” (as
such terms are defined in Rule 12b-2 under the Act) of such person, shall become the “beneficial
owner” (as such term is defined in Rule 13d-3 under the Act), directly or indirectly, of securities of
uniQure  N.V.  representing  forty  (40)  percent  or  more  of  the  combined  voting  power  of  uniQure
N.V.’s  then  outstanding  securities  having  the  right  to  vote  in  an  election  of  the  Board  (“Voting
Securities”)  (in  such  case  other  than  as  a  result  of  an  acquisition  of  securities  directly  from  the
uniQure N.V.); or

a majority of the members of the Board of uniQure N.V. is replaced during any 12-month period by
directors whose appointment or election is not endorsed by a majority of the members of the Board
before the date of the appointment or election; or

the  consummation  of  (i)  any  consolidation  or  merger  of  uniQure  N.V.  where  the  stockholders  of
uniQure N.V., immediately prior to the consolidation or merger, would not, immediately after the
consolidation or merger, beneficially own (as such term is defined in Rule 13d-3 under the Act),
directly or indirectly, shares representing in the aggregate more than fifty (50) percent of the voting
shares of uniQure N.V. issuing cash or securities in the consolidation or merger (or of its ultimate
parent  corporation,  if  any),  or  (ii)  any  sale  or  other  transfer  (in  one  transaction  or  a  series  of
transactions contemplated or arranged by any party as a single plan) of all or substantially all of the
assets of uniQure N.V.

13.5. Release from Work (Garden Leave)

The Company may at any time (including during the Notice Period) and with immediate effect release the
Employee  from  the  duty  to  work.  In  such  case,  the  Employee  continues  to  be  paid  the  Base  Salary.
Vacation,  any  overtime  and  time  compensation  entitlements,  if  any,  shall  be  offset  against  the  time  of
release from work. The Company may set forth further conditions applying to the release from duties.

14. Work Equipment and Obligation to Return Work Equipment

The Company at its discretion shall provide the Employee with work equipment such as laptops or mobile
phones. The work equipment shall remain the property of the Company and the Company shall have the
right to replace and/or reclaim the work equipment at any time.

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At the Company’s first request, but no later than upon termination of this Employment Agreement for any
reason, the Employee shall return to the Company everything the Employee produced in the course of the
Employee’s work for the Company, everything which was given to the Employee throughout the course of
this Employment and everything which otherwise fell into the Employee’s possession. The obligation to
return work equipment includes in particular but is not limited to keys, mobile phones, laptops, badges as
well  as  data  carriers  and  records  of  any  kind,  including  any  copies.  Any  possible  retention  right  of  the
Employee is explicitly waived.

15. Working Time

15.1. General

The weekly working time depends on the needs to perform the position successfully but is at least 40 hours
per week on an average basis (100% position).

15.2. Additional Work

The  Employee  shall  work  overtime,  if  this  is  necessary  to  fulfil  the  Employee’s  duties  under  this
Employment Agreement. Considering the Employee’s independent position and duties the Swiss Labour
Act is not applicable to the Employment. The Employee shall therefore have no entitlement to additional
compensation for any such extra work (overtime, extra hours, Sunday work, work on public holidays, or
night work). All such extra and overtime work is already compensated by the Base Salary and the vacation
days exceeding the statutory minimum.

16.

Vacation

The  Employee  is  entitled  to  30  business  days  of  vacation  per  calendar  year  (for  a  100%  stint).  The  10
additional,  days  of  vacation  granted  exceeding  the  statutory  minimum  entitlement  of  20  days  shall  be
granted  expressly  as  compensation  for  any  overtime  worked  and  may  be  offset  against  any  time  off
entitlements.

The Company has the right to determine by giving one (1) month advance notice when the Employee shall
take vacation days. In exceptional situations, this advance notice period is shortened to up to one week.
Nevertheless,  the  Company  will  consider  wishes  of  the  Employee.  If  the  Employee  requests  to  take
vacation, the Employee shall, reasonably prior to the intended vacation, inform the responsible executive.
In  any  event  the  Employee  shall  provide  for  suitable  internal  representation  during  the  Employee’s
vacation.

For  the  year  in  which  the  Employment  begins  or  ends,  the  vacation  entitlement  is  calculated  pro  rata
temporis.

It  is  the  Employee’s  duty  to  refund  to  the  Company  any  vacation  salary  received  for  vacation  days  in
excess of the vacation entitlement of the Employee.

The Employee shall take vacation days within the calendar year for which such entitlement accrues. The
Employee shall not, without prior consultation and approval of the Company

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and/or the responsible executive or otherwise as allowed pursuant to Company policy, roll such days over
to the subsequent calendar year.

17.

Public Holidays and Short Absences

17.1. Public Holidays

The Employee is not obliged to work on federal and cantonal public holidays at the primary place of work
in  Switzerland.  The  Employee  is  not  entitled  to  any  compensation  whether  in  cash  or  in  kind  for  such
public holidays when such public holidays are on weekends.

17.2. Short Absences

The  Employee  shall,  upon  request,  be  granted  the  usual  hours  or  days  off  without  deduction  from  the
salary,  provided  that  they  necessarily  fall  within  working  hours.  The  extent  of  such  absences  shall  be
determined in accordance with the Company’s current practice.

Such short absences shall not be grounds for a deduction of the Employee’s entitlements to the Base Salary
or vacation days, unless the absence exceeds the time period as set forth above.

Such absences shall not be grounds for a deduction of the Employee’s entitlements to the Base Salary or
vacation days, unless the absence exceeds the time period as set forth above.

18.

Incapacity to Work and Insurances

The  Employee  shall  notify  the  Company  immediately  about  any  incapacity  to  work  and  its  probable
duration, stating the respective reasons.

18.1. Medical Certificate

If  the  Employee’s  incapacity  to  work  due  to  illness  or  accident  exceeds  3  business  days,  the  Employee
shall  without  request  by  the  Company  furnish  a  medical  certificate  in  an  ongoing  Employment.  The
Company  reserves  the  right  to  request  a  medical  certificate  even  in  the  event  of  a  shorter  duration  of
incapacity to work. If the Employment has been terminated, the Employee shall in any case be obliged to
furnish a medical certificate to the Company from the first day of incapacity to work. In all cases of illness
and  accident,  the  Company  is  entitled  to  ask  the  Employee  to  be  examined  by  an  independent  medical
examiner at the Company’s expense.

18.2. Salary in case of Employee’s Incapacity to Work

If the Employee is prevented from work due to illness or accident, the Company shall continue to pay the
remuneration hereunder in accordance with the law (Berne scale) unless a daily sickness benefits insurance
exists.

In case a daily sickness benefits insurance exists, the Employee will receive the benefits due under such
insurance in accordance with the corresponding insurance policy and the

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respective  Company  regulations  and  policies,  as  amended  from  time  to  time.  The  Employee  will  be
notified accordingly by the Company in such case.

In  any  case,  continued  salary  payment  obligation  of  the  Company  ceases  at  the  end  of  the  employment
relationship.

18.3. Occupational and Non-occupational Accidents

If the Employee works for the Company for an average of less than 8 hours per week, the Employee is
only insured for certain medical expenses for occupational accidents. However, if the Employee works for
the Company for an average of more than 8 hours per week, the Employee is insured for certain medical
expenses  for  both  occupational  and  non-occupational  accidents.  Premiums  for  occupational  accident
insurance and occupational sickness insurance are paid by the Company. Premiums for non-occupational
accident insurance are paid by the Employee.

18.4. Health Insurance (Illness)

Health insurance is compulsory in Switzerland and needs to be obtained by the Employee. The Company
will reimburse Employee’s health insurance costs.

18.5. Pension Plan

Provided that the Employee meets the regulatory requirements, the Employee is, through a pension plan
(the Pension Plan), insured against the economic consequences of retirement, disability and death.

The Employee’s existing Pension Plan will be continued by the Company.

The Employee will be covered by the Pension Plan as may be amended from time to time.

19.

Intellectual Property Rights and Work Results

The  Company  shall  own  all  work  results  (including  but  not  limited  to  data,  know-how,  documentation,
concepts, drafts, inventions, works, applications, software, etc.) and all intellectual property rights therein,
irrespective  of  their  protectability  under  the  applicable  law,  (including  but  not  limited  to  trademarks,
patents, designs, and copyrights) (the foregoing all together “Work Results”) created by the Employee in
the course of the Employment  (regardless  of  whether  within  or  outside  agreed office or workplaces and
within or outside working hours).

All such Work Results shall vest automatically in the Company upon their creation. If the Company has
not become the automatic owner of the Work Results and/or if the Work Results are not transferred to the
Company  by  law,  the  Employee  is  obliged  to  irrevocably  transfer  and  assign  and  hereby  transfers  and
assigns said Work Results to the Company. If such Work Product cannot be transferred to the Company for
any  reason  whatsoever,  the  Employee  grants  the  Company  an  exclusive,  worldwide,  transferable,
unlimited, irrevocable, sub-licensable and royalty-free license to use and exploit the Work Result.

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Further, the Employee waives the right (i) to be mentioned as inventor, author or creator of a Work Result,
(ii) to object to any change, modification, revision, translation or alteration of the Work Result or (iii) to
determine the first publication of any Work Result.

The  Employee  is  obliged  to  take  all  steps  reasonably  requested  by  the  Company  in  order  to  fulfil  the
Employee’s obligations according to the above sections. This obligation continues even after termination
of the Employment.

If Employee has created the Work Result with the assistance of another individual or legal entity that is not
legally or contractually obliged to transfer the Work Result to the Company, the Employee ensures to take
the required actions to have such third party’s share in the Work Result transferred to the Company or (if a
transfer is not possible) to have it licensed to the Company according to the terms above. In addition, the
Employee ensures that the third party waives the right (i) to be mentioned as inventor, author or creator of
a  Work  Result,  (ii)  to  object  to  any  change,  modification,  revision,  translation  or  alteration  of  the  Work
Result or (iii) to determine the first publication of any Work Result.

Compensation for the transfer or licensing of any and all Work Results according to the above sections, in
particular  intellectual  property  rights  and/or  licensing  rights,  is  included  in  the  Employee’s  Base  Salary
according to Section 11.1.

If  a  Work  Result  is  created  by  the  Employee  in  the  course  of  the  Employment  but  outside  of  the  duties
under  the  Employment  Agreement,  the  Employee  shall  immediately  inform  the  Company  thereof  in
writing.  The  Company  shall  have  the  right  to  acquire  ownership  of  such  Work  Result  for  a  reasonable
additional  compensation,  provided  that  the  Company  notifies  the  Employee  in  writing  of  its  will  to
exercise this option within six (6) months as of the Employee’s notice of the creation of the Work Result.

20.

Data Protection

The  Company  informs  the  Employee  about  the  processing  of  the  Employee’s  personal  information  in  a
privacy notice (Personal Data).

The Company may amend the privacy notice and respective policies at any time.

21.

Non-Competition and Non-Solicitation

21.1. General

The Employee acknowledges and agrees to adhere to undertakings in this Section 21 as the Company and
the  Group  have  a  serious  business  interest  in  binding  the  Employee  to  the  non-competition  and  non-
solicitation  undertakings,  due  to  the  fact  that  (i)  within  the  organization  of  the  Company  and  the  Group
competition-sensitive information as well as confidential information related to the Company, the Group
and  their  clients  and  relations,  such  as  but  not  limited  to  products,  or  research  or  development  or
commercialization of the Company and the Group (Sensitive Business Information) are available and (ii)
in  the  position  of  General  Manager  or  other  title  that  may  be  agreed  to  following  commencement  of
employment, the Employee has access to this Sensitive Business Information and/or will

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become  aware  of  this  Sensitive  Business  Information  and/or  will  maintain  (commercial)  contacts  with
clients, suppliers, competitors etc. Given the aforesaid considerations (i) and (ii) in this clause, combined
with the education and capacities of the Employee, the Company and the Group have a well-founded fear
that their business interests will be harmed substantially if the Employee performs competing activities as
set forth in this Section 21.

21.2. Non-Competition during Employment

The Employee shall refrain from competing with the Company during the Employment, i.e., the Employee
is obliged in particular not to:

–

–

directly or indirectly, once, occasionally or professionally, under the Employee’s name or under a
third-party name, on behalf of the Employee’s own or on behalf of third parties’ account
knowingly compete with the Company or any Group Company; or

engage in any way in any enterprise competing with the Company or any Group Company, and the 
Employee also agrees not to found, assist or promote any business actively competing  with the 
Company or any Group Company, including,  without limitation, the research and development of 
product candidates for  the same target, indication or disease.

Any  solicitation  or  referral  of  clients  and/or  employees  of  the  Company  or  any  Group  Company  is
prohibited.

In  the  event  of  a  breach  of  this  non-competition  or  non-solicitation  obligation  as  set  out  in  this
Section 21.2, the Employee agrees to pay to the Company a penalty equal to one (1) month’s Base Salary
(including salary increases as granted from time to time) for each breach.

21.3. Post-Contractual Non-Competition

The Employee agrees that for a period of 12 months after termination of the Employment the Employee
will not, directly or indirectly, once, occasionally or professionally, under the Employee’s name or under a
third-party name, on behalf of the Employee’s own or on behalf of third parties’ account Compete with, or
otherwise engage in any way in any enterprise Competing with, the Company or any Group Company.

“Compete” and “Competing” as used above refer to engaging in activities or functions related to: (i) the
treatment of epilepsy by directly inhibiting the expression of the kainate receptor subunits named GluK2
and/or GluK5, or (ii) any other proprietary gene therapy target, platform, or manufacturing technology of
the  Company  or  any  Group  Company,  that,  in  each  of  clauses  (i)  –  (ii),  Employee  worked  on  behalf  of
Employer during the two years preceding the termination of the Employment.

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21.4. This non-competition obligation shall apply worldwide, to the extent allowed by law.Post-

Contractual Non-Solicitation and Non-Disparagement

For  a  period  of  12  months  after  termination  of  the  Employment  the  Employee  shall  abstain  directly  or
indirectly from:

–

–

–

enticing away, soliciting or interfering with any personnel from the Company or any Group
Company with whom the Employee was in contact during the Employment;

enticing away, soliciting or interfering with clients or contacts of the Company or any Group
Company with whom the Employee was in contact during the last three years prior to termination
of the Employment or about whom the Employee gained knowledge during the Employment; or

disparage the Company or any Group Company in any way, provided that this clause does not
affect your right to disclose appropriate information to relevant bodies under any applicable laws of
Switzerland.

21.5. Penalty

If  the  Employee  violates  the  post-contractual  non-competition  obligation  according  to  Section  21.3,  the
Employee  shall  pay  to  the  Company  a  penalty  in  the  amount  of  3  monthly  Base  Salaries  Salary  (incl.
salary increases as granted from time to time) for each violation.

If  the  Employee  violates  the  post-contractual  non-solicitation  obligation  with  respect  to  co-workers
according to Section 21.4, the Employee shall pay the Company a penalty of 1 monthly Base Salary (incl.
salary increases as granted from time to time) for each violation.

If the Employee violates the post-contractual non-solicitation obligation with respect to clients according
to  Section  21.4,  the  Employee  shall  pay  to  the  Company  a  penalty  in  the  amount  of  2  monthly  Base
Salaries (including salary increases as granted from time to time) for each violation.

If the breach consists in non-authorized participation in a competing company or in entering into a long-
term  obligation  (such  as  an  employment,  service,  agency  or  consultant  contract),  the  penalty  shall  be
increased by EUR 1’000 for each month or part thereof in which the breach continues (the Continuous
Breach).

Multiple breaches of the obligations each trigger separate penalties, if necessary, several times within one
month.  If  individual  breaches  occur  within  a  Continuous  Breach,  they  shall  be  covered  by  the  penalty
which has to be paid for the Continuous Breach.

The payment of the penalty does not release the Employee from the obligation to comply with the non-
competition and/or non-solicitation obligations. The Company shall be entitled to seek injunctive measures
or any other type of immediate relief to stop the infringement as soon as possible, regardless of whether
any penalty is offered or paid.

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Further, the Company reserves the right to claim compensation for damages (in addition to the penalty or
penalties).

22.

Confidentiality

The  Employee  will  have  access  to  confidential  and  proprietary  information  relating  to  the  business  and
operations  of  the  Company,  any  Group  Companies  and  their  clients,  in  particular  to  business  and
manufacturing  secrets.  Such  confidential  and  proprietary  information  constitutes  a  unique  and  valuable
asset  of  the  Company  and  any  Group  Companies  and  their  acquisition  required  great  time  and  expense.
The  disclosure  or  any  other  use  of  such  confidential  or  proprietary  information,  other  than  for  the  sole
benefit of the Company or any Group Company, would cause irreparable harm to the Company.

The  Employee  is  under  a  strict  duty  to  keep  all  confidential  and  proprietary  information  strictly  and
permanently  confidential  and,  accordingly,  shall  not  during  the  Employment  or  after  termination  of  the
Employment directly or indirectly for any purpose other than for the sole benefit of the Company or any
Group  Company  disclose  or  permit  to  be  disclosed  to  any  third  party  any  confidential  or  proprietary
information  without  first  obtaining  the  written  consent  of  the  responsible  executive  and  the  party
concerned, if applicable, except if required to do so by law.

The Employee may not make any statement to the media, as far as the Employee is not authorized to do so
by the Company and/or the responsible executive.

In  the  event  the  Employee  breaches  the  obligations  pursuant  to  this  Section,  the  Employer  may  take
reasonable disciplinary action up to and including termination of Employment for each breach.

However,  the  payment  of  the  penalty  does  not  release  the  Employee  from  further  complying  with  the
confidentiality obligation.

The Company reserves the right to claim compensation for damages in addition to the penalty.

23.

Regulations and Policies

The  Employee  confirms  that  he  is  familiar  with  the  regulations  and  policies  of  the  Company  and  will
comply  with  them  at  all  times.  The  Employee  acknowledges  that  the  Company  may  amend  existing
regulations and policies from time to time and may issue new regulations and policies from time to time.

24. Miscellaneous

24.1. Entire Agreement

This  Employment  Agreement  constitutes  the  complete  Employment  Agreement  between  the  Parties
regarding its subject matter and supersedes all prior oral and/or written agreements, representations and/or
communications concerning the subject matter hereof.

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All  prior  agreements,  including  any  employment  agreements  with  Corlieve  Therapeutics  SAS,  are
terminated as of the Effective Date of this Agreement.  Further, the Employee resigns and terminates his
mandate  with  Corlieve  Therapeutics  SAS  dated  October  29,  2019  as  of  the  Effective  Date  of  this
Agreement.

24.2. Severability

Should any of the provisions of this Employment Agreement be or become legally invalid, such invalidity
shall not affect the validity of the remaining provisions. Any gap resulting from such invalidity shall be
filled  by  a  provision  consistent  with  the  spirit  and  purpose  of  the  Employment  Agreement.  In  the  same
way shall be proceeded if a contractual gap appears.

24.3. Amendments

Any amendments or supplementation of this Employment Agreement shall require written form and must
be signed by both Parties. The written form may be dispensed only in writing.

Upon  30  day  written  notice  to  the  Employee,  the  Company  may  convert  any  amounts  owed  under  this
agreement  (including  any  Base  Salary,  allowance  or  other  payment)  from  CHF  (Swiss  Francs)  to  Euros
using a generally accepted exchange rate at the time of such conversion.

24.4. Applicable Law

This Employment Agreement shall be construed in accordance with and governed by Swiss law (without
giving effect to the principles of conflicts of law).

24.5. Place of Jurisdiction

Any  dispute  arising  out  of  or  in  connection  with  this  Employment  Agreement  and  the  Employment
resulting therefrom shall be exclusively submitted to and determined by the ordinary courts at the domicile
of the Company, subject to mandatory places of jurisdiction.

24.6. Execution

The  Parties  have  duly  executed  this  Employment  Agreement  in  two  originals,  each  Party  receiving  one
original.

24.7. Proof of right to work

Upon request, you agree to promptly provide to the Company documentation proving your eligibility to
work in the jurisdiction governing this Agreement, and you agree to promptly inform the Company if you
cease to be eligible to work in the jurisdiction governing this Agreement.

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Signatures

Corlieve Therapeutics AG (Company)

By:  /s/ David J. Cerveny, Attorney in Fact

Employee

Place, date

/s/ Richard Porter

Richard Porter

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First Amended Employment Agreement

dated 1 April 2022 (the Effective Date)

by and between

Corlieve Therapeutics AG,
Switzerland Innovation Park
Basel Area AG
Gewerbestrasse 24
4123 Allschwil, Switzerland

and

Exhibit 10.75

(the Company)

Richard Porter
A British citizen born [***] in [***], England, and currently residing at [***]

(the Employee)

(The Company and the Employee are also referred to as Party or Parties; this employment agreement referred to
as the Employment Agreement and the Agreement.)

1.

Prior Agreement

This Agreement amends and restates the Employment Agreement having an effective date of July 30, 2021
between the parties (the “Prior Employment Agreement”).  The Prior Employment Agreement is amended
as  of,  and  governs  the  period  from  July  30,  2021  to  immediately  prior  to,  the  Effective  Date.    This
Agreement governs as of the Effective Date.

2.

Seniority Date

The  Employment  Agreement,  as  amended,  is  a  transfer  of  the  existing  employment  contract  (Mandate
dated October 29, 2019), subject to certain changes that have been negotiated effective July 30, 2021 and
as amended effective as of the Effective Date, from Corlieve Therapeutics SAS to Corlieve Therapeutics
AG.  For purposes of calculating length of employment and any benefits and security related to the length
of employment, the transition should not result in a loss of security or benefit for the employee due to the
transition  and  the  Employee’s  employment  shall  be  considered  continuous  beginning  as  of  October  29,
2019.

3.

Function and Job Title

The Employee shall assume the title as Chief Business Officer (“CBO”) for the Company and its affiliates
(including, without limitation, uniQure N.V., uniQure biopharma B.V., and uniQure, Inc.) (each a Group
Company,  together  the  Group),  on  a  full-time  basis  as  provided  in  Article  15  of  this  Agreement.  The
function and/or the job title may be adjusted by the Company at any time to reflect current circumstances.
Employee will report to the Chief Executive Officer of uniQure N.V.

Employee will continue to serve as the General Manager of Company to assist with the management and
administration of Company on an as needed basis, including, without limitation, during the transition to his
new role as CBO.

The Executive will continue to serve as a director of the Company and Corlieve Therapeutics SAS, subject
to the discretion of uniQure, N.V. to appoint and remove directors of those companies.

The  detailed  duties  of  the  Employee  are  the  customary  role  of  a  Chief  Business  Officer  overseeing
business development activities, as provided in the job description attached at Exhibit A. Employee will be
covered  under  the  Directors  and  Officers  Insurance  of  Company  or  its  affiliates.  Company  agrees  to
indemnify Employee to the fullest extent permitted by law and the Company’s articles of association for
any claims arising from actions taken by Employee in the scope of the employment.

4.

Group Structure

The Employee acknowledges that the Company is part of a group of companies ultimately controlled by
uniQure  N.V.  The  Employee  acknowledges  that  the  Employee  will  need  to  work  with  and/or  report  to
other employees and/or officers of other Group Companies. The

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Employee  acknowledges  that  this  does  not  create  separate  employment  relationships  with  other  Group
Companies.

5.

Duties and Responsibilities

It  is  understood  that  the  duties  and  responsibilities  arising  out  of  the  above  function  include  all  tasks
customarily or reasonably incidental to such function.

The  Company  may  assign  to  the  Employee  any  other,  additional,  or  new  duties  or  responsibilities  as
deemed reasonable or appropriate by the Company in the course and fulfilment of its business.

The  Employee  undertakes  to  use  the  Employee’s  entire  working  ability  to  fulfill  the  Employee’s
contractual obligations and to loyally safeguard and foster the business and the interests of the Company.
The Employee shall carefully perform all work and tasks assigned to the Employee.

6.

Work for Third Parties

The  Employee  is  not  entitled  to  work  for  any  third  party  or  to  engage  in  any  gainful  or  unpaid
employment, whether full-time or part-time, for the duration of the Employment Agreement without the
prior written approval of the Company.

Membership  of  the  boards  of  directors  of  other  companies  and  other  institutions  that  are  related  to  the
business purpose of the Company or otherwise affect the interests of the Company or a Group Company
also requires the prior consent of the Company. Consent will not be unreasonably withheld if there is no
conflict of interest with regard to the Company.

7.

Officer Position

In fulfilment of the Employee’s duties, the Employee may have to act as officer, director or in any other
corporate  function  within  the  Company  or  any  Group  Company.  The  Company  may  decide  at  its  full
discretion  when  such  function  shall  end,  and  the  Employee  will  retire  from  such  functions  and  sign  the
necessary documentation upon first request.

The  base  salary  as  defined  in  Section  11.1  includes  any  and  all  remuneration  for  such  functions  and
positions. In case the law provides for a mandatory remuneration the Company will decide whether such
compensation shall be forwarded to the Company or be set off against the base salary as defined in Section
11.1 paid to the Employee by the Company.

8.

Conflict of Interests

The Employee shall avoid any conflict of interest and inform the Company immediately if any potential
conflict of interest arises.

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A conflict of interest arises especially in case of a participation in suppliers or clients of the Company or in
a Group Company.

9.

Gifts

In connection with the performance of his duties, the Employee is prohibited from accepting or stipulating,
either directly or indirectly, any commission, reimbursement, or payment, in whatever form, or gifts from
third parties. The foregoing does not apply to standard promotional gifts having little monetary value.

10.

Place of Work

The Employees primary place of work shall be at the offices of the Company.

The Employee understands and agrees that the Employee may, in the course of the Employment and where
reasonably requested by the Company, be required to travel to and work in other places and countries in
order to perform the Employee’s obligations and duties under the Employment Agreement. In particular,
the  Employee  will  need  to  be  present  from  time  to  time  in  the  head  offices  of  the  Company  in  the
Netherlands.

The Employee is obliged to track any days not worked in Switzerland, including place of work, and submit
such schedule regularly to the Company upon request.

The  Company  will  work  with  you  to  determine  a  reasonable  budget  for  costs  associated  with  travel
between  your  home  in  Switzerland,  and  Company  facilities  in  Amsterdam,  Netherlands  and  Lexington,
Massachusetts to include airfare, lodging and associated expenses while doing business on behalf of the
Company.

11.

Compensation

11.1. Base Salary

The Employee shall  receive  an  annual base  salary  of  Four  Hundred  Ten  Thousand CHF (CHF 410,000)
per year gross (the Base Salary), payable in 12 monthly instalments at the end of the month to a bank or
postal  account  to  be  specified  by  the  Employee.    Alternatively,  you  may  be  paid  in  instalments  in
accordance with the regular payroll practices of the Group Companies.

11.2. Bonus

The Employee may, if applicable, participate in a bonus program of the Company or a Group Company,
which  the  Company  or  the  issuing  Group  Company  shall  determine  at  its  full  discretion.  If  no  bonus
program is issued, any bonus shall be determined at the discretion of the Company.

The Company may set targets for the bonus, according to which the amount of the bonus is determined.
However, the Company is free to deviate at its own discretion upwards or

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downwards from the targets set in its final determination of the bonus. If no targets are set, any bonus shall
be determined at the discretion of the Company.

The target bonus shall be 40% of the Base Salary (“Target Bonus”).  The Target Bonus may be adjusted by
the Company to the extent consistent with advice of the compensation consultant of the Board of uniQure
N.V. or otherwise consistent with adjustments made to the target bonuses of other executive employees.

In the event of termination of the Employment, the Employee has no entitlement to a bonus, not even on a
pro  rata  basis.    To  be  eligible  for  any  bonus  pursuant  to  this  Agreement  or  otherwise  pursuant  to
Employee’s employment with Employer, Employee must be in service of Employer on the date any bonus
is paid.

11.3. Participation Plan

The Employee may be given the opportunity by uniQure N.V. to participate in the growth of the Group
pursuant to a participation plan such as, for instance, an employee share option plan or a share plan, and as
amended from time to time (the Participation Plan). It is in the full discretion of uniQure N.V. to issue
and/or to unilaterally amend such Participation Plan at any time.

The  Employee  expressly  acknowledges  that  the  Employee  does  not  have  any  right  or  claim  under  the
Participation Plan against the Company, but only against uniQure N.V. or the Group Company issuing the
Participation  Plan.  The  Employee  also  confirms  that  any  participation  in  the  Participation  Plan  does  not
constitute an employment relationship with uniQure N.V. or the issuing Group Company.

11.4. Acknowledgements of the Employee

The Employee acknowledges and agrees that any entitlements granted, and payments made in addition to
the Base Salary, including, but not limited to any bonuses, participations, or gratuities of the Company or
any Group Company (the Additional Payments) are not part of the salary legally or contractually owed
by  the  Company  and  are  made  at  full  discretion  of  the  Company  or  the  Group  Company  granting  such
bonus, participation, or gratuity. Any Additional Payments shall not create any obligation of the Company
or any Group Company to make such Additional Payments in the future and shall not create any right or
claim of the Employee to such Additional Payments in the future even if paid over consecutive years and
without express reservation.

11.5. No other Compensation

The  Employee  acknowledges  and  agrees  that  the  Employee  shall  not  be  entitled  to  receive  any  other
compensation  or  benefit  of  any  nature  from  the  Company  except  as  expressly  provided  for  in  this
Employment Agreement.

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11.6. Social security, tax, and deductions

Until  retirement  age  and  while  this  Agreement  is  effective,  the  Employee  is  insured  according  to  the
Federal  Laws  on  old  age  (AHVG),  disability  (IVG),  compensation  for  the  loss  of  earnings  (EOG),
unemployment insurance (AVIG), accident insurance (UVG), sickness benefits insurance and pension plan
(BVG).  The  Corlieve  insurance  and  pension  provisions  in  existence  as  of  the  commencement  date  of
employment will be carried forward unless and until modifications are legally required or a new scheme is
adopted  by  the  Employer.    From  any  and  all  gross  compensation  hereunder  –  if  provided  by  law,
regulations, or policies – any portions of the Employee’s contributions to the sickness benefits insurance, if
any,  and  withholding  taxes,  if  any,  will  be  deducted  and  withheld  by  the  Company  from  the  payments
made to the Employee.

Any portions of the Employee’s social security contributions in accordance with the AHVG, IVG, EOG,
AVIG,  UVG  and  premiums  to  pension  schemes  (BVG)  must  be  paid  by  the  Employee  to  the  respective
insurance institutions in Switzerland in accordance with the separately signed agreement according to art.
21 para. 2 of Regulation (EC) No. 987/09 as per Annex B to this Employment Agreement. In accordance
with said agreement is the Employee further obliged to pay the Company’s social security contributions
portions  in  accordance  with  the  AHVG,  IVG,  EOG,  AVIG,  UVG  and  premiums  to  pension  schemes
(BVG). Therefore, the Company transfers any and all compensation hereunder after having deducted any
portions of the Employee’s contributions to the sickness benefits insurance, if any, and withholding taxes,
if  any.  In  addition,  the  Company  transfers  the  Company’s  social  security  contributions  portions  in
accordance  with  the  AHVG,  IVG,  EOG,  AVIG,  UVG  and  premiums  to  pension  schemes  (BVG)  as
provided by law, regulations, or policies, to the Employee.

The  Company  reserves  the  right  to  unilaterally  terminate  this  agreement  according  to  art.  21  para.  2  of
Regulation (EC) No. 987/09 at any time, to register as a different company and to pay any social security
contributions  due  (employee  and  employer  contributions).  In  case  of  such  unilateral  termination  of  said
agreement,  the  Employee  shall  be  notified  by  the  Company  in  due  time.  In  this  case,  from  any  and  all
gross  compensation  hereunder  –  if  provided  by  law,  regulations  or  policies  –  any  portions  of  the
Employee’s social security contributions in accordance with the AHVG, IVG, EOG, AVIG, UVG, sickness
benefits insurance, if any, premiums to pension schemes and withholding taxes, if any, will be deducted
and withheld by the Company from the payments made to the Employee.

Where it will not be possible anymore to remain in the Swiss social security system, the Employee will be
insured  according  to  the  applicable  social  security  system  in  accordance  with  the  respective  applicable
legislation, Company policies, as well as insurance policies and regulations.

12.

Expenses

The  Employee  shall  be  entitled  to  reimbursement  by  the  Company  of  out-of-pocket  business  expenses
reasonably incurred by the Employee during the Employment in the performance of the Employee’s duties
under this Employment Agreement. The provisions

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in Section 10 shall be reserved. However, the reimbursement is subject to (i) the submission of relevant
vouchers and receipts indicating the amount and purpose of the expenses, and (ii) the compliance with the
reimbursement policies of the Company issued and unilaterally amended from time to time.

13.

Termination

13.1. Reserved.

13.2. Termination

Employment  may  be  terminated  by  either  Party  with  a  notice  period  of  4  (four)  months  (the  “Notice
Period”).

Upon observance of the notice period, termination shall be effective as of the end of a calendar day and not
the end of a calendar month.

The Employment is being terminated automatically at the end of the month in which the Employee reaches
the retirement age according to the Federal Law on Old-age and Survivors’ Insurance (AHVG). In case of a
permanent disability to work the same applies. In case of a partial permanent disability the Employment
ends to the same extent as the Employee is declared disabled.

13.3. Severance Generally

If the Employment is terminated by the Company, except

(i)

(ii)

(iii)

in case of a summary dismissal for good cause by the Company (in accordance with Article 337
CO);

in case the Employee having given the Company good cause to do so (in accordance with Article
340c(2) CO);

in case the Employee the Employee is in breach of any duties and failed to remedy such breach
within 30 days after having been asked in writing to do so;

(iv)

in case the Employee is terminated after an illness lasting for at least 6 months; or

(v)

in case of poor performance after having been put on a performance improvement plan for at least
90 days and having failed to meet the set targets,

then the Company shall grant the Employee severance pay (Severance) equal to

(i)

(ii)

(iii)

100% of the annual Base Salary (less any pay received during the Notice Period);

100% an amount corresponding to the Target Bonus; and

an amount corresponding to a pro-rata Target Bonus amount for the year of termination as
provided. The pro-rata Bonus shall be the product of the formula B

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x D/365 where B represents the Target Bonus, and D represents the number of days elapsed in the
calendar year through the date of notice to the Employee.

Any severance payment is subject to the condition that the Employee signs a termination agreement with
the Company including a full waiver of any other claims and the reinstatement of all restrictive covenants.
For the avoidance of any doubt, no other bonus or severance shall become payable in such case.Except as
expressly  provided  in  this  clause,  any  other  bonus  payments  will  not  be  taken  into  account  for  the
calculation of any possible severance payment upon termination of the Agreement.

13.4. Severance on a Change of Control

If the Employment is terminated by the Company within the period beginning ninety (90) days before and
continuing  until  twelve  (12)  months  after  a  Change  of  Control  (as  defined  below),  and  subject  to  the
conditions for Severance as per Section 13.3 above being fulfilled and in lieu of the severance provided in
Section  13.3,  the  Company  shall  grant  the  Employee  a  severance  pay  (Change  of  Control  Severance)
equal to

(i)

(ii)

(iii)

150% of the annual Base Salary (less any pay received during the Notice Period);

150% of the Target Bonus; plus

an amount corresponding to a pro-rata Target Bonus amount for the year of termination as
provided. The pro-rata Bonus shall be the product of the formula B x D/365 where B represents the
Target Bonus, and D represents the number of days elapsed in the calendar year through the date of
notice to the Employee.

The  Change  of  Control  Severance  is  subject  to  the  condition  that  the  Employee  signs  a  termination
agreement  with  the  Company  including  a  full  waiver  of  any  other  claims  and  the  reinstatement  of  all
restrictive covenants. For the avoidance of any doubt, no other bonus or severance shall become payable in
such  case.Except  as  expressly  provided  in  this  clause,  any  other  bonus  payment  will  not  be  taken  into
account for the calculation of any possible severance payment upon termination of the Agreement.

In the event of a Change of Control of uniQure N.V. as defined below and provided that the Company is
directly  or  indirectly  a  subsidiary  or  affiliate  of  uniQure  N.V.  upon  such  Change  of  Control  event,  the
vesting  conditions  that  may  apply  to  any  stock  options,  restricted  shares,  restricted  stock  units,
performance stock units or other grants of equity held by Employee pursuant to this Agreement and the
Company’s Amended and Restated 2014 Share Incentive Plan will be automatically waived and shall be
deemed fully vested immediately prior to the Change of Control event. All Stock Options will be deemed
to  be  fully  exercisable  commencing  on  the  date  of  and  immediately  prior  to  the  Change  of  Control  and
ending on the eighteen (18) month anniversary of the Change of Control or, if earlier, the expiration of the
term of such Stock Options

For the purposes of this Employment Agreement, Change of Control shall mean with respect to uniQure
N.V. the date on which any of the following events occurs:

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a)

b)

c)

any  “person,”  as  such  term  is  used  in  Sections  13(d)  and  14(d)  of  the  United  States  Securities
Exchange Act of 1934, as amended (the Act) (other than uniQure N.V., any of its subsidiaries, or
any trustee, fiduciary or other person or entity holding securities under any employee benefit plan
or trust of uniQure N.V. or any of its subsidiaries), together with all “affiliates” and “associates” (as
such terms are defined in Rule 12b-2 under the Act) of such person, shall become the “beneficial
owner” (as such term is defined in Rule 13d-3 under the Act), directly or indirectly, of securities of
uniQure  N.V.  representing  forty  (40)  percent  or  more  of  the  combined  voting  power  of  uniQure
N.V.’s  then  outstanding  securities  having  the  right  to  vote  in  an  election  of  the  Board  (“Voting
Securities”)  (in  such  case  other  than  as  a  result  of  an  acquisition  of  securities  directly  from  the
uniQure N.V.); or

a majority of the members of the Board of uniQure N.V. is replaced during any 12-month period by
directors whose appointment or election is not endorsed by a majority of the members of the Board
before the date of the appointment or election; or

the  consummation  of  (i)  any  consolidation  or  merger  of  uniQure  N.V.  where  the  stockholders  of
uniQure N.V., immediately prior to the consolidation or merger, would not, immediately after the
consolidation or merger, beneficially own (as such term is defined in Rule 13d-3 under the Act),
directly or indirectly, shares representing in the aggregate more than fifty (50) percent of the voting
shares of uniQure N.V. issuing cash or securities in the consolidation or merger (or of its ultimate
parent  corporation,  if  any),  or  (ii)  any  sale  or  other  transfer  (in  one  transaction  or  a  series  of
transactions contemplated or arranged by any party as a single plan) of all or substantially all of the
assets of uniQure N.V.

13.5. Release from Work (Garden Leave)

The Company may at any time (including during the Notice Period) and with immediate effect release the
Employee  from  the  duty  to  work.  In  such  case,  the  Employee  continues  to  be  paid  the  Base  Salary.
Vacation,  any  overtime  and  time  compensation  entitlements,  if  any,  shall  be  offset  against  the  time  of
release from work. The Company may set forth further conditions applying to the release from duties.

14. Work Equipment and Obligation to Return Work Equipment

The Company at its discretion shall provide the Employee with work equipment such as laptops or mobile
phones. The work equipment shall remain the property of the Company and the Company shall have the
right to replace and/or reclaim the work equipment at any time.

At the Company’s first request, but no later than upon termination of this Employment Agreement for any
reason, the Employee shall return to the Company everything the Employee produced in the course of the
Employee’s work for the Company, everything which was given to the Employee throughout the course of
this Employment and everything which otherwise fell into the Employee’s possession. The obligation to
return

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work equipment includes in particular but is not limited to keys, mobile phones, laptops, badges as well as
data carriers and records of any kind, including any copies. Any possible retention right of the Employee is
explicitly waived.

15. Working Time

15.1. General

The weekly working time depends on the needs to perform the position successfully but is at least 40 hours
per week on an average basis (100% position).

15.2. Additional Work

The  Employee  shall  work  overtime,  if  this  is  necessary  to  fulfil  the  Employee’s  duties  under  this
Employment Agreement. Considering the Employee’s independent position and duties the Swiss Labour
Act is not applicable to the Employment. The Employee shall therefore have no entitlement to additional
compensation for any such extra work (overtime, extra hours, Sunday work, work on public holidays, or
night work). All such extra and overtime work is already compensated by the Base Salary and the vacation
days exceeding the statutory minimum.

16.

Vacation

The  Employee  is  entitled  to  30  business  days  of  vacation  per  calendar  year  (for  a  100%  stint).  The  10
additional,  days  of  vacation  granted  exceeding  the  statutory  minimum  entitlement  of  20  days  shall  be
granted  expressly  as  compensation  for  any  overtime  worked  and  may  be  offset  against  any  time  off
entitlements.

The Company has the right to determine by giving one (1) month advance notice when the Employee shall
take vacation days. In exceptional situations, this advance notice period is shortened to up to one week.
Nevertheless,  the  Company  will  consider  wishes  of  the  Employee.  If  the  Employee  requests  to  take
vacation, the Employee shall, reasonably prior to the intended vacation, inform the responsible executive.
In  any  event  the  Employee  shall  provide  for  suitable  internal  representation  during  the  Employee’s
vacation.

For  the  year  in  which  the  Employment  begins  or  ends,  the  vacation  entitlement  is  calculated  pro  rata
temporis.

It  is  the  Employee’s  duty  to  refund  to  the  Company  any  vacation  salary  received  for  vacation  days  in
excess of the vacation entitlement of the Employee.

The Employee shall take vacation days within the calendar year for which such entitlement accrues. The
Employee  shall  not,  without  prior  consultation  and  approval  of  the  Company  and/or  the  responsible
executive  or  otherwise  as  allowed  pursuant  to  Company  policy,  roll  such  days  over  to  the  subsequent
calendar year.

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17.

Public Holidays and Short Absences

17.1. Public Holidays

The Employee is not obliged to work on federal and cantonal public holidays at the primary place of work
in  Switzerland.  The  Employee  is  not  entitled  to  any  compensation  whether  in  cash  or  in  kind  for  such
public holidays when such public holidays are on weekends.

17.2. Short Absences

The  Employee  shall,  upon  request,  be  granted  the  usual  hours  or  days  off  without  deduction  from  the
salary,  provided  that  they  necessarily  fall  within  working  hours.  The  extent  of  such  absences  shall  be
determined in accordance with the Company’s current practice.

Such short absences shall not be grounds for a deduction of the Employee’s entitlements to the Base Salary
or vacation days, unless the absence exceeds the time period as set forth above.

Such absences shall not be grounds for a deduction of the Employee’s entitlements to the Base Salary or
vacation days, unless the absence exceeds the time period as set forth above.

18.

Incapacity to Work and Insurances

The  Employee  shall  notify  the  Company  immediately  about  any  incapacity  to  work  and  its  probable
duration, stating the respective reasons.

18.1. Medical Certificate

If  the  Employee’s  incapacity  to  work  due  to  illness  or  accident  exceeds  3  business  days,  the  Employee
shall  without  request  by  the  Company  furnish  a  medical  certificate  in  an  ongoing  Employment.  The
Company  reserves  the  right  to  request  a  medical  certificate  even  in  the  event  of  a  shorter  duration  of
incapacity to work. If the Employment has been terminated, the Employee shall in any case be obliged to
furnish a medical certificate to the Company from the first day of incapacity to work. In all cases of illness
and  accident,  the  Company  is  entitled  to  ask  the  Employee  to  be  examined  by  an  independent  medical
examiner at the Company’s expense.

18.2. Salary in case of Employee’s Incapacity to Work

If the Employee is prevented from work due to illness or accident, the Company shall continue to pay the
remuneration hereunder in accordance with the law (Berne scale) unless a daily sickness benefits insurance
exists.

In case a daily sickness benefits insurance exists, the Employee will receive the benefits due under such
insurance in accordance with the corresponding insurance policy and the respective Company regulations
and policies, as amended from time to time. The Employee will be notified accordingly by the Company in
such case.

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In  any  case,  continued  salary  payment  obligation  of  the  Company  ceases  at  the  end  of  the  employment
relationship.

18.3. Occupational and Non-occupational Accidents

If the Employee works for the Company for an average of less than 8 hours per week, the Employee is
only insured for certain medical expenses for occupational accidents. However, if the Employee works for
the Company for an average of more than 8 hours per week, the Employee is insured for certain medical
expenses  for  both  occupational  and  non-occupational  accidents.  Premiums  for  occupational  accident
insurance and occupational sickness insurance are paid by the Company. Premiums for non-occupational
accident insurance are paid by the Employee.

18.4. Health Insurance (Illness)

Health insurance is compulsory in Switzerland and needs to be obtained by the Employee. The Company
will reimburse Employee’s health insurance costs.

18.5. Pension Plan

Provided that the Employee meets the regulatory requirements, the Employee is, through a pension plan
(the Pension Plan), insured against the economic consequences of retirement, disability, and death.

The Employee’s existing Pension Plan will be continued by the Company.

The Employee will be covered by the Pension Plan as may be amended from time to time.

19.

Intellectual Property Rights and Work Results

The  Company  shall  own  all  work  results  (including  but  not  limited  to  data,  know-how,  documentation,
concepts, drafts, inventions, works, applications, software, etc.) and all intellectual property rights therein,
irrespective  of  their  protectability  under  the  applicable  law,  (including  but  not  limited  to  trademarks,
patents, designs, and copyrights) (the foregoing all together “Work Results”) created by the Employee in
the course of the Employment  (regardless  of  whether  within  or  outside  agreed office or workplaces and
within or outside working hours).

All such Work Results shall vest automatically in the Company upon their creation. If the Company has
not become the automatic owner of the Work Results and/or if the Work Results are not transferred to the
Company  by  law,  the  Employee  is  obliged  to  irrevocably  transfer  and  assign  and  hereby  transfers  and
assigns said Work Results to the Company. If such Work Product cannot be transferred to the Company for
any  reason  whatsoever,  the  Employee  grants  the  Company  an  exclusive,  worldwide,  transferable,
unlimited, irrevocable, sub-licensable and royalty-free license to use and exploit the Work Result.

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Further, the Employee waives the right (i) to be mentioned as inventor, author, or creator of a Work Result,
(ii) to object to any change, modification, revision, translation, or alteration of the Work Result or (iii) to
determine the first publication of any Work Result.

The  Employee  is  obliged  to  take  all  steps  reasonably  requested  by  the  Company  in  order  to  fulfil  the
Employee’s obligations according to the above sections. This obligation continues even after termination
of the Employment.

If Employee has created the Work Result with the assistance of another individual or legal entity that is not
legally or contractually obliged to transfer the Work Result to the Company, the Employee ensures to take
the required actions to have such third party’s share in the Work Result transferred to the Company or (if a
transfer is not possible) to have it licensed to the Company according to the terms above. In addition, the
Employee ensures that the third party waives the right (i) to be mentioned as inventor, author, or creator of
a Work Result, (ii) to object to any change, modification, revision, translation, or alteration of the Work
Result or (iii) to determine the first publication of any Work Result.

Compensation for the transfer or licensing of any and all Work Results according to the above sections, in
particular  intellectual  property  rights  and/or  licensing  rights,  is  included  in  the  Employee’s  Base  Salary
according to Section 11.1.

If  a  Work  Result  is  created  by  the  Employee  in  the  course  of  the  Employment  but  outside  of  the  duties
under  the  Employment  Agreement,  the  Employee  shall  immediately  inform  the  Company  thereof  in
writing.  The  Company  shall  have  the  right  to  acquire  ownership  of  such  Work  Result  for  a  reasonable
additional  compensation,  provided  that  the  Company  notifies  the  Employee  in  writing  of  its  will  to
exercise this option within six (6) months as of the Employee’s notice of the creation of the Work Result.

20.

Data Protection

The  Company  informs  the  Employee  about  the  processing  of  the  Employee’s  personal  information  in  a
privacy notice (Personal Data).

The Company may amend the privacy notice and respective policies at any time.

21.

Non-Competition and Non-Solicitation

21.1. General

The Employee acknowledges and agrees to adhere to undertakings in this Section 21 as the Company and
the  Group  have  a  serious  business  interest  in  binding  the  Employee  to  the  non-competition  and  non-
solicitation  undertakings,  due  to  the  fact  that  (i)  within  the  organization  of  the  Company  and  the  Group
competition-sensitive information as well as confidential information related to the Company, the Group
and  their  clients  and  relations,  such  as  but  not  limited  to  products,  or  research  or  development  or
commercialization of the Company and the Group (Sensitive Business Information) are available and (ii)
in the position of General Manager or other title that may be agreed to following commencement

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of employment, the Employee has access to this Sensitive Business Information and/or will become aware
of this Sensitive Business Information and/or will maintain (commercial) contacts with clients, suppliers,
competitors etc. Given the aforesaid considerations (i) and (ii) in this clause, combined with the education
and capacities of the Employee, the Company and the Group have a well-founded fear that their business
interests  will  be  harmed  substantially  if  the  Employee  performs  competing  activities  as  set  forth  in  this
Section 21.

21.2. Non-Competition during Employment

The Employee agrees that for a period of 12 months after termination of the Employment the Employee
will neither:

–

–

directly or indirectly, once, occasionally or professionally, under the Employee’s name or under a
third-party name, on behalf of the Employee’s own or on behalf of third parties’ account compete
with the Company or any Group Company; nor

engage in any way in any enterprise competing with the Company or any Group Company, and the
Employee also agrees not to found, assist or promote any business being active in the same line of
business as the Company or any Group Company.

Particularly, any gene therapy activity (including the manufacture or development of a gene therapy) shall
be considered as competing activity.

This non-competition obligation shall apply to the whole territory for which the Employee was responsible
during the Employment and/or to the whole territory in which the Employee was working with products of
the Company or any Group Company during the Employment, but at least to the territories and in relation
to the markets of Switzerland, the European Union, Australia, and the United States.

Any  solicitation  or  referral  of  clients  and/or  employees  of  the  Company  or  any  Group  Company  is
prohibited.

In  the  event  of  a  breach  of  this  non-competition  or  non-solicitation  obligation  as  set  out  in  this
Section 21.2, the Employee agrees to pay to the Company a penalty equal to one (1) month’s Base Salary
(including salary increases as granted from time to time) for each breach.

21.3. Post-Contractual Non-Competition

The Employee agrees that for a period of 12 months after termination of the Employment the Employee
will not, directly or indirectly, once, occasionally or professionally, under the Employee’s name or under a
third-party name, on behalf of the Employee’s own or on behalf of third parties’ account Compete with, or
otherwise engage in any way in any enterprise Competing with, the Company or any Group Company.

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“Compete” and “Competing” as used above refer to engaging in activities or functions that are similar in
scope to, competitive with, or otherwise related to: (i) any program of any Group Company in the research,
development,  clinical  trial,  or  commercialization  stage,  or  (ii)  any  other  proprietary  gene  therapy  target,
platform, or manufacturing technology of any Group Company, that, in each of clauses (i) – (ii), Employee
either worked on on behalf of Employer, or had access to any confidential information concerning, during
the two years preceding the termination of the Employment.

21.4. This non-competition obligation shall apply worldwide, to the extent allowed by law.Post-

Contractual Non-Solicitation and Non-Disparagement

For  a  period  of  12  months  after  termination  of  the  Employment  the  Employee  shall  abstain  directly  or
indirectly from:

–

–

–

enticing away, soliciting, or interfering with any personnel from the Company or any Group
Company with whom the Employee was in contact during the Employment;

enticing away, soliciting, or interfering with clients or contacts of the Company or any Group
Company with whom the Employee was in contact during the last three years prior to termination
of the Employment or about whom the Employee gained knowledge during the Employment; or

disparage the Company or any Group Company in any way, provided that this clause does not
affect your right to disclose appropriate information to relevant bodies under any applicable laws of
Switzerland.

21.5. Penalty

If  the  Employee  violates  the  post-contractual  non-competition  obligation  according  to  Section  21.3,  the
Employee  shall  pay  to  the  Company  a  penalty  in  the  amount  of  3  monthly  Base  Salaries  Salary  (incl.
salary increases as granted from time to time) for each violation.

If  the  Employee  violates  the  post-contractual  non-solicitation  obligation  with  respect  to  co-workers
according to Section 21.4, the Employee shall pay the Company a penalty of 1 monthly Base Salary (incl.
salary increases as granted from time to time) for each violation.

If the Employee violates the post-contractual non-solicitation obligation with respect to clients according
to  Section  21.4,  the  Employee  shall  pay  to  the  Company  a  penalty  in  the  amount  of  2  monthly  Base
Salaries (including salary increases as granted from time to time) for each violation.

If the breach consists in non-authorized participation in a competing company or in entering into a long-
term  obligation  (such  as  an  employment,  service,  agency,  or  consultant  contract),  the  penalty  shall  be
increased  by  EUR  1’000  for  each  month  or  part  thereof  in  which  the  breach  continues  (the  Continuous
Breach).

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Multiple breaches of the obligations each trigger separate penalties, if necessary, several times within one
month.  If  individual  breaches  occur  within  a  Continuous  Breach,  they  shall  be  covered  by  the  penalty
which has to be paid for the Continuous Breach.

The payment of the penalty does not release the Employee from the obligation to comply with the non-
competition and/or non-solicitation obligations. The Company shall be entitled to seek injunctive measures
or any other type of immediate relief to stop the infringement as soon as possible, regardless of whether
any penalty is offered or paid. Further, the Company reserves the right to claim compensation for damages
(in addition to the penalty or penalties).

22.

Confidentiality

The  Employee  will  have  access  to  confidential  and  proprietary  information  relating  to  the  business  and
operations  of  the  Company,  any  Group  Companies,  and  their  clients,  in  particular  to  business  and
manufacturing  secrets.  Such  confidential  and  proprietary  information  constitutes  a  unique  and  valuable
asset of the Company and any Group Company, and their acquisition required great time and expense. The
disclosure or any other use of such confidential or proprietary information, other than for the sole benefit
of the Company or any Group Company, would cause irreparable harm to the Company.

The  Employee  is  under  a  strict  duty  to  keep  all  confidential  and  proprietary  information  strictly  and
permanently  confidential  and,  accordingly,  shall  not  during  the  Employment  or  after  termination  of  the
Employment directly or indirectly for any purpose other than for the sole benefit of the Company or any
Group  Company  disclose  or  permit  to  be  disclosed  to  any  third  party  any  confidential  or  proprietary
information  without  first  obtaining  the  written  consent  of  the  responsible  executive  and  the  party
concerned, if applicable, except if required to do so by law.

The Employee may not make any statement to the media, as far as the Employee is not authorized to do so
by the Company and/or the responsible executive.

In  the  event  the  Employee  breaches  the  obligations  pursuant  to  this  Section,  the  Employer  may  take
reasonable disciplinary action up to and including termination of Employment for each breach.

However,  the  payment  of  the  penalty  does  not  release  the  Employee  from  further  complying  with  the
confidentiality obligation.

The Company reserves the right to claim compensation for damages in addition to the penalty.

23.

Regulations and Policies

The  Employee  confirms  that  he  is  familiar  with  the  regulations  and  policies  of  the  Company  and  will
comply  with  them  at  all  times.  The  Employee  acknowledges  that  the  Company  may  amend  existing
regulations and policies from time to time and may issue new regulations and policies from time to time.

16 of 19

24. Miscellaneous

24.1. Entire Agreement

This  Employment  Agreement  constitutes  the  complete  Employment  Agreement  between  the  Parties
regarding its subject matter and supersedes all prior oral and/or written agreements, representations and/or
communications concerning the subject matter hereof.  All prior agreements, including any written or oral
employment agreements or side letters with Corlieve Therapeutics SAS or Company, are terminated as of
the Effective Date of this Agreement. This Employment Agreement shall not affect any equity grants or
bonus  plans  previously  approved  by  the  Board  uniQure  N.V.  or  otherwise  awarded  pursuant  to  the  side
letter dated July 30, 2021.

24.2. Severability

Should any of the provisions of this Employment Agreement be or become legally invalid, such invalidity
shall not affect the validity of the remaining provisions. Any gap resulting from such invalidity shall be
filled  by  a  provision  consistent  with  the  spirit  and  purpose  of  the  Employment  Agreement.  In  the  same
way shall be proceeded if a contractual gap appears.

24.3. Amendments

Any amendments or supplementation of this Employment Agreement shall require written form and must
be signed by both Parties. The written form may be dispensed only in writing.

Upon  30  day  written  notice  to  the  Employee,  the  Company  may  convert  any  amounts  owed  under  this
agreement (including any Base Salary, allowance, or other payment) from CHF (Swiss Francs) to Euros
using a generally accepted exchange rate at the time of such conversion.

24.4. Applicable Law

This Employment Agreement shall be construed in accordance with and governed by Swiss law (without
giving effect to the principles of conflicts of law).

24.5. Place of Jurisdiction

Any  dispute  arising  out  of  or  in  connection  with  this  Employment  Agreement  and  the  Employment
resulting therefrom shall be exclusively submitted to and determined by the ordinary courts at the domicile
of the Company, subject to mandatory places of jurisdiction.

24.6. Execution

The  Parties  have  duly  executed  this  Employment  Agreement  in  two  originals,  each  Party  receiving  one
original.

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24.7. Proof of right to work

Upon request, you agree to promptly provide to the Company documentation proving your eligibility to
work in the jurisdiction governing this Agreement, and you agree to promptly inform the Company if you
cease to be eligible to work in the jurisdiction governing this Agreement.

Signatures

Corlieve Therapeutics AG (Company)

/s/ David J. Cerveny, Attorney in Fact

By: David J. Cerveny, Attorney in Fact

Employee

Place, date

/s/ Richard Porter

Richard Porter

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The Chief Business Officer’s duties will include, but not be limited to:

EXHIBIT A
Job Description

·

·

Serving as a key advisor to the Chief Executive Officer on strategy, business development, including
M&A, collaborations, technology/IP licenses, and other strategic transactions, as well as changes in
competitive landscape, market trends and business environment

Leading corporate strategic planning, under direction by the Chief Executive Officer and Board of
Directors, including formalizing and leading the strategic planning process, assessing long-term trends,
and competitive intelligence

· Developing the business development strategy in close collaboration with the Chief Executive Officer, the

President of Research and Development, and other members of the Leadership Team

· Working in partnership with Chief Executive Officer and the President of Research and Development on a

process to identify and evaluate business development opportunities, as well as cultivate external
relationships aligned with these opportunities

·

·

·

·

Leading execution of transactions, including coordinating due diligence, negotiating business terms,
conducting financial analysis and valuation, and interacting with the Board of Directors

Leading early commercial planning, including assessing market access and reimbursement strategies,
developing value propositions, and conducting market research, as well as partnering with R&D to
evaluate potential new therapies and to integrate commercial perspectives early in the research and
development process

Facilitating execution of strategy by working collaboratively with the other Leadership Team members,
ensuring that strategy is communicated and understood throughout the organization, and that appropriate
metrics are in place to measure performance and progress towards strategic goals

Preparing presentations and communicating updates to the Leadership Team and Board of Directors

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Exhibit 10.76

CONFIDENTIAL

October 5, 2023

Richard Porter, Ph.D.
uniQure
Switzerland Innovation Park, Main Campus
Hegenheimermattweg 167A
4123 Allschwil, Switzerland

Dear Richard,

We refer to the first amended employment agreement dated April 1, 2022, between Corlieve Therapeutics

AG. (together with all of its affiliates, the “Company”) (the “Employment Agreement”).

The Compensation Committee of the Board of Directors of uniQure N.V. (the “Committee”) is pleased to

offer you the following amendment to your Employment Agreement effective as of the first date written above:

All terms used but not defined herein shall be as defined in the Employment Agreement.

1.

2.

3.

4.

The function and job title set forth under the heading “Function and Job Title” are hereby revised to
Chief Scientific Officer and Chief Business Officer for the Group with continued reporting to the
Chief Executive Officer of uniQure, N.V. The detailed duties for these functions are as provide in
the  job  description  attached  to  this  letter  as  Exhibit  A  that  hereby  replaces  Exhibit  A  in  the
Agreement.

Section 11.1 Base Salary of the Employment Agreement shall be replaced in its entirety with the
following:

The  Employee  shall  receive  an  annual  base  salary  of  CHF  450,000  per  year  gross  (the  Base
Salary), payable in 12 monthly instalments at the end of the month to a bank or postal account to be
specified by the Employee. Alternatively, you may be paid in instalments in accordance with the
regular payroll practices of the Group Companies.

Section  13.2  Termination  of  the  Employment  Agreement  shall  be  amended  by  replacing  the  first
sentence of this section in its entirety with the following:

Employment may be terminated by either Party with a notice period of 6 (six) months (the “Notice
Period”).

For  clarity,  any  material  change  to  the  Employee’s  job  description  (attached  as  Exhibit  A  to  this
letter) shall require the prior consent of the Employee. If the

CONFIDENTIAL

Employee does not provide his consent to such proposed change, then the Company shall have the
option  either  to  terminate  the  Employment  Agreement  or  not  materially  change  such  job
description.  If  the  Employment  Agreement  is  terminated  by  the  Company  solely  in  order  to
materially change the Employee’s job description according to Exhibit A within 12 months of the
effective date of the second amendment to the Employment Agreement — e.g. through a notice of
termination with the option of altered conditions of employment (“Anderungskiindigung”) —, then
the  Company  shall  grant  the  Employee  severance  pay  under  the  terms  of  clause  13.3  of  the
Employment Agreement (“Severance Generally”).

In addition to the foregoing amendment to the Employment Agreement, the Committee is also pleased to
offer  you  a  one-time  equity  grant  for  your  promotion  to  CSO/CBO  of  the  Group,  approved  by  the  Board  of
Directors of uniQure N.V. on September 27, 2023, consisting of:

(a)

(b)

twelve thousand eight hundred (12,800) restricted stock units of uniQure N.V. (RSUs), such RSUs
vesting pro-rata on each of the first three anniversaries of the grant date; and

an option to purchase twenty-two thousand one hundred (22,100) ordinary shares of uniQure N.V.,
having an exercise price as of the closing share price on the date of grant, such option vesting over
a period of four years, with one-quarter of the shares vesting on the first anniversary of the grant
date  and  the  remaining  shares  vesting  quarterly  on  a  pro-rata  basis  during  the  remainder  of  the
vesting period.

This one-time equity grant is not to be considered part of the salary legally or contractually owed to you, is
made at full discretion of uniQure N.V. and shall not create any obligation to make any additional equity grants in
the  future.  Further,  this  one-time  grant  is  subject  to  the  terms  and  conditions  of  uniQure  N.  V.’s  Amended  and
Restated 2014 Share Incentive Plan.

With  the  exception  of  the  changes  stated  above,  the  terms  and  conditions  of  employment  set  out  in  the
Employment Agreement remain the same. This letter shall form a part of the Employment Agreement and shall be
governed by the terms of the Employment Agreement.

Best Regards,

/s/ Jeannette Potts
Jeannette Potts
Chief Legal Officer
Director, Corlieve Therapeutics, AG

2

CONFIDENTIAL

This letter and my Employment Agreement, together, constitute the entire agreement between the Company and
me with respect to my employment with the Company and may not be altered or amended unless in writing and
signed by both parties.

/s/ Richard Porter
Richard Porter

3

CONFIDENTIAL

Exhibit A

Job Description

In addition to the duties described below, the Employee will perform other duties as may be customarily provided
by a person in such positions.

The Chief Scientific Officer’s duties will include, but not be limited to:

● Directing the research, technology and pre-clinical aspects of the Group’s pipeline.
● Develop, refine and execute uniQure’s research, scientific and enabling technology platform strategy that

supports and enhances the corporate long-term plan;

● Lead the effort to translate discovery research into clinical-ready product candidates;
● Work  closely  with  the  Chief  Medical  Officer,  Chief  Operating  Officer  and  other  key  leaders  to  ensure

execution on a corporate and global strategy related to research and enabling technology;

● Establish and/or help to maintain relationships with KOLs and academic institutions, and serve as a key

liaison between the company and its external scientific advisors and the investment community;

● Productively  work  with  the  R&D  Committee  of  the  Board  and  regularly  report  to  the  Board  and  other
members  of  the  organization  to  ensure  transparency  regarding  the  progress  of  research  and  enabling
technology programs;

● Participate in leadership team meetings, Board meetings and other key operating mechanisms required of

senior management and by the Chief Executive Officer;

● Make and attend scientific presentations, and participate in key scientific and medical conferences;
● Develop  budgets  for  relevant  functional  responsibilities,  subject  to  approval  by  the  Chief  Executive

Officer and Chief Financial Officer, and ensure execution within approved targets; and

● Foster  and  develop  an  innovative  and  productive  organization  of  talented  scientists,  including  the

management, motivation, recruitment and evaluation of personnel.

The Chief Business Officer’s duties will include, but not be limited to:

● Serve  as  a  key  advisor  to  the  Chief  Executive  Officer  on  business  development,  including  M&A,

partnerships, collaborations, technology/lP licenses, and other strategic transactions;

● Develop  the  business  development  strategy  in  close  collaboration  with  the  Chief  Executive  Officer,  the

Chief Medical Officer, and other members of the Leadership Team;

● Work in partnership with Chief Executive Officer and other members of the Leadership Team on a process
to  identify  and  evaluate  business  development  opportunities,  as  well  as  cultivate  external  relationships
aligned with these opportunities;

4

CONFIDENTIAL

● Lead  execution  of  transactions,  including  coordinating  due  diligence,  negotiating  business  terms,
conducting  financial  analysis  and  valuation,  and  interacting  with  the  Board  of  Directors  and  any
appropriate committees of the Board; and

● Leading early New Product Planning (commercial), including assessing market access, developing value
propositions, and conducting market re- search, as well as partnering with R&D to evaluate potential new
therapies and to integrate commercial perspectives early in the research and development process

● Prepare presentations and communicate updates to the Leadership Team, the Board of Directors and any

appropriate committees of the Board.

● To be reassessed at a mutually agreed timepoint in line with business objectives

5

Exhibit 10.77

Confidential

EMPLOYMENT AGREEMENT

THIS EMPLOYMENT AGREEMENT (this “Agreement”) is made and entered into as of May 22, 2023

(the “Effective Date”), by and between uniQure, Inc., 113 Hartwell Avenue, Lexington, MA 02421 (the
“Company”) and Jeannette Potts, Ph.D., J.D., an individual residing at [***] (the “Executive”).

WITNESSETH:

WHEREAS, the Company wishes to employ Executive as its Chief Legal and Compliance Officer;

WHEREAS, Executive wishes to be employed by the Company and to serve in such capacity under the

terms and conditions set forth in this Agreement; and

WHEREAS, the awards of equity provided in Section 8 (“Equity”) of this Agreement is a material

inducement to the Executive in entering into this Agreement;

NOW, THEREFORE, in consideration of the mutual promises and covenants contained herein and

intending to be legally bound hereby, the Company and Executive agree as follows.

1.

Employment. The Company hereby agrees to employ Executive, and Executive hereby accepts

such employment by the Company, as a full-time employee for the period and upon the terms and conditions
contained in this Agreement. Any prior agreement related to the employment of Executive (whether written or
oral) is hereby terminated as of the Effective Date.

2.

Term. Executive’s term of employment with the Company under this Agreement shall begin on the
Effective Date and shall continue in force and effect from year to year unless terminated earlier in accordance with
Section 19 (the “Term”).

3.

Position and Duties. During the Term, Executive shall serve the Company as its Chief Legal and
Compliance Officer, reporting directly to the uniQure Chief Executive Officer (the “CEO”). Executive’s duties
will include but not be limited to:

● Serve as the principal strategic legal advisor to the Company, the CEO, and Senior

Management Team.

● Provide objective advice to Board of Directors in exercise of its fiduciary duties.
● Be responsible for overseeing corporate governance and compliance work related to a publicly

traded company.

● Advise the Chief Financial Officer (the “CFO”) on the legal aspects of the Company’s financial

transactions and structure.

● Advise the executive team on the legal aspects of licensing, joint venture, or other collaboration

transactions.

● Advise Human Resources on employment and regulatory matters on a multi-state level.

● As Secretary, subject to appointment to such position by the Board of Directors, oversee the

planning and coordination of board meetings and annual stockholder meetings.

● Prepare all Board minutes and resolutions to ensure compliance with corporate laws and

governance guidelines;

● Advise and assist the Board with the development, implementation and maintenance of various
compliance initiatives and corporate governance policies and practices including committee
charters, insider trading policy, ethics policy, etc.

● Serve as chief legal advisor on all major business transactions. Ensure the timely drafting and
negotiation of all business contracts so that the corporate objectives / strategic plans are met.

● Review, draft, and with members of the executive team negotiate corporate transaction

agreements and a wide range of domestic and international business agreements, including joint
ventures, mergers and acquisitions, debt/equity financings, and other special projects requiring
the advice and counsel of the Company’s chief legal officer.

● Oversee the contracting process. Negotiate and structure major contracts and licensing

agreements, supplier agreements, NDAs, and other commercial agreements. Supervise part-
time operations legal counsel and other legal staff.

● Prepare and/or review contracts involving patents, leases, capital investments/purchases,

employment, insurance, CRO, manufacturing and key supply agreements, etc.

● Advise on employment matters, including compliance, termination decisions and investigations

as required.

● Assist in preparing periodic and annual reports and other securities law filings under the
Securities Exchange Act of 1934 and the Securities Act of 1933. Establish and reinforce
disclosure procedures to support the CEO and CFO SOX certifications.

● Review public disclosures for compliance with Reg FD and other securities laws.
● Review the Company’s ‘34 Act filings prepared by the Finance department; draft the annual

proxy including compensation committee’s CD&A.

● Be responsible in conjunction with the CFO for stock plan administration, including Section 16

filings.

● Participate in the definition and development of corporate policies, procedures and programs

and provide continuing counsel and guidance on legal and compliance matters.

● Assume responsibility for advising the Company on the conduct of its business to comply with

applicable state, federal, and local laws and regulations that materially may affect the
Company’s business interests.

● Analyze and evaluate the potential legal risks and likely outcomes of threatened or filed legal
claims against or on behalf of the company, work with the appropriate senior executive(s) to
define a strategic course of action and approve settlements of disputes where warranted.

Jeanette Potts
Employment Agreement

2

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● Make decisions to manage the Company’s legal department, including roles, staffing, functions,

and hiring of employees, inside and outside counsel and other necessary advisors and/or
consultants.

● Any other duties as may from time to time be reasonably assigned to you by the Company, and

any other duties as may from time to time be assigned to you by the CEO and which are
consistent with Executive’s status as a senior executive and the Company’s chief legal officer.

Executive will perform other duties consistent with the job description previously provided and as may be
customarily provided by a person in such position.

4.

During the Term, Executive shall devote full business time, best efforts, skill, knowledge, attention,

and energies to the advancement of the Company’s business and interests and to the performance of Executive’s
duties and responsibilities as an employee of the Company. Executive shall abide by the rules, regulations,
instructions, personnel practices and policies of the Company and any changes therein that may be adopted from
time to time by the Company.

5.

During the Term, Executive shall not be engaged in any business activity which, in the judgment of

the Company, conflicts with Executive’s duties hereunder, whether such activity is pursued for pecuniary
advantage. Should Executive wish to provide any services to any other person or entity other than the Company or
to serve on the board of directors of any other entity or organization, Executive shall submit a written request to
the Company for consideration and approval by the Company, which approval shall not unreasonably be withheld.
If the Company later makes a reasonable, good faith determination that Executive’s continued service on another
entity’s board would be detrimental to the Company, it will give Executive thirty (30) days’ written notice that it is
revoking the original approval, and Executive will resign from the applicable board within thirty (30) days after
receipt of such notice. Notwithstanding the foregoing, Executive may engage in civic and charitable organizations
and manage Employee’s personal and business affairs during normal business hours provided such activities do
not, individually or collectively, interfere with the performance of his duties hereunder.

6.

Location. Executive shall perform the services hereunder from the Company’s USA headquarters
at 113 Hartwell Avenue, Lexington MA, USA; provided, however, that Executive shall be required to travel from
time to time for business purposes, including, without limitation, to the Company’s facilities in Amsterdam,
Netherlands.

7.

Compensation and Benefits.

(a)

Base Salary. For all services rendered by Executive under this Agreement, the Company
will pay Executive a base salary at the annual rate of four hundred sixty-five thousand
dollars ($465,000), which shall be reviewed annually by the CEO for adjustment (the base
salary in effect at any time, the “Base Salary’’). Executive’s Base Salary shall be paid in bi-
weekly installments, less withholdings as required by law and deductions authorized by
Executive, and payable pursuant to the Company’s regular

Jeanette Potts
Employment Agreement

3

Initials

payroll practices in effect at the time and as may be changed from time to time, subject to
the terms of this agreement.

(b)

Discretionary Bonus. Following the end of each calendar year and subject to the approval
of the Company, Executive shall be eligible for a target retention and performance bonus of
up to forty percent (40%) of the annual Base Salary based on performance and the
Company’s performance and financial condition during the applicable calendar year, as
determined by the Company in its sole discretion (a “Bonus”). In any event, Executive must
be an active employee of the Company as of the 1st of October of the relevant calendar year
and on the date the Bonus is distributed to be eligible for and to earn any Bonus, as it also
serves as an incentive to remain employed by the Company.

8.

Equity. Subject to Board of Directors approval at the next regularly scheduled uniQure N.V. Board

meeting after the execution of this Agreement and commencement of employment, Executive shall be granted:

(a)

(b)

Forty-seven thousand one hundred (47,100) restricted stock units of uniQure N.V. (RSUs),
such RSUs vesting pro-rata on each of the first three anniversaries of the grant date; and

an option to purchase eighty-one thousand three hundred (81,300) ordinary shares
ofuniQure N.V., having an exercise price as of the closing share price on the date of grant,
such option vesting over a period of four years, with one-quarter of the shares vesting on
the first anniversary of the grant date and the remaining shares vesting quarterly on a pro-
rata basis during the remainder of the vesting period.

Each grant of options and RSUs shall be granted as inducement grants pursuant to a plan separate and distinct
from the Company’s 2014 Share Incentive Plan, as amended, and the terms will otherwise reflect the standard
terms and conditions contained in the Company’s standard equity grant agreements. The grants will be approved
by the Board of Directors ofuniQure N.V. not later than at its next regularly scheduled meeting. If the Board fails
to make the grant at such regularly scheduled meeting or within a reasonable time thereafter, it shall be deemed a
Good Reason event under Section 19(f) hereof. The Executive will be eligible for future equity grants pursuant to
the Company’s policies and procedures. Any additional grants during the first year of employment (not including
those provided above) will be prorated based on hire date, and all future grants of equity shall be subject to the
provisions of this Agreement, including, without limitation, Sections 17 (Change of Control) and 19
(Termination).

9.

Retirement and Welfare Benefits. Executive is eligible to participate in any and all benefit

programs that the Company establishes and makes available to its employees from time to time, provided that
Executive is eligible under (and subject to all provisions of) the plan documents that govern those programs.
These include medical, dental and disability insurances. Benefits are subject to change at any time in the
Company’s sole discretion.

Jeanette Potts
Employment Agreement

4

Initials

10.

Paid Time Off and Holidays. Executive is eligible for 4 weeks of paid vacation per calendar year

(prorated for any partial year during the term) to be taken at such times as may be approved in advance by the
Company. Executive is also entitled to all paid holidays observed by the Company in the United States. Executive
shall have all rights and be subject to all obligations and responsibilities with respect to paid time off and holidays
as are set forth in the Company’s employee manual or other applicable policies and procedures, which may
provide for benefits greater than but not less than those provided in this Agreement.

11.

Expense Reimbursement. During the Term, Executive shall be reimbursed by the Company for all

necessary and reasonable expenses incurred by Executive in connection with the performance of Executive’s
duties hereunder (including business trips to the uniQure Amsterdam headquarters). Executive shall keep an
itemized account of such expenses, together with vouchers and/or receipts verifying the same and submit for
reimbursement on a monthly basis. Any such expense reimbursement will be made in accordance with the
Company’s travel and expense policies governing reimbursement of expenses as are in effect from time to time.

12. Withholding. All amounts set forth in this Agreement are on a gross, pre-tax basis and shall be

subject to all applicable federal, state, local and foreign withholding, payroll and other taxes, and the Company
may withhold from any amounts payable to Executive (including any amounts payable pursuant to this
Agreement) in order to comply with such withholding obligations.

13.

IP and Restrictive Covenants. The Company’s agreement to enter into this Agreement is contingent

upon Executive’s execution of the Company’s Confidentiality, Developments, and Restrictive Covenants
Agreement, attached as Exhibit A to this Agreement. Nothing in this Agreement or the Confidentiality,
Developments, and Restrictive Covenants Agreement shall prohibit or restrict Executive from initiating
communications directly with, responding to any inquiry from, providing testimony before, providing confidential
information to, reporting possible violations of law or regulation to, or filing a claim or assisting with an
investigation directly with a self-regulatory authority or a government agency or entity, including the Equal
Employment Opportunity Commission, the Department of Labor, the National Labor Relations Board, the
Department of Justice, the Securities and Exchange Commission, Congress, any agency Inspector General or any
other federal, state or local regulatory authority (collectively, the “Regulators”), or from making other disclosures
that are protected under the whistleblower provisions of state or federal law or regulation. Executive does not need
the prior authorization of the Company to engage in conduct protected by this subsection, and Executive does not
need to notify the Company that Executive has engaged in such conduct. Please take notice that federal law
provides criminal and civil immunity to federal and state claims for trade secret misappropriation to individuals
who disclose trade secrets to their attorneys, courts, or government officials in certain, confidential circumstances
that are set forth at 18 U.S.C. §§ 1833(b)(1) and 1833(b)(2), related to the reporting or investigation of a suspected
violation of the law, or in connection with a lawsuit for retaliation for reporting a suspected violation of the law.

14.

At-Will Employment. This Agreement shall not be construed as an agreement, either express or

implied, to employ Executive for any stated term, and shall in no way alter the Company’s policy of employment
at-will, under which both the Company and Executive remain

Jeanette Potts
Employment Agreement

5

Initials

free to end the employment relationship for any reason, at any time, with or without Cause or notice. Similarly,
nothing in this Agreement shall be construed as an agreement, either express or implied, to pay Executive any
compensation or grant Executive any benefit beyond the end of employment with the Company.

15.

Conflicting Agreements. Executive acknowledges and represents that by executing this Agreement

and performing Executive’s obligations under it, Executive will not breach or be in conflict with any other
agreement to which Executive is a party or is bound, and that Executive is not subject to any covenants against
competition or similar covenants that would affect the performance of Executive’s obligations for the Company.

16.

No Prior Representations. This Agreement and its exhibits constitute all the terms of Executive’s
hire and supersedes all prior representations or understandings, whether written or oral, relating to the terms and
conditions of Executive’s employment.

17.

Change of Control. In the event of a Change of Control as defined below, the vesting conditions

that may apply to any options, restricted shares, restricted stock units, performance stock units or other grants of
equity held by Executive pursuant to this Agreement and the Company’s Amended and Restated 2014 Share
Incentive Plan will be automatically waived, and all the Stock Options will be deemed to be fully exercisable
commencing on the date of the Change of Control and ending on the eighteen (18) month anniversary of the
Change of Control or, if earlier, the expiration of the term of such Stock Options. For pmposes of this Agreement,
“Change of Control” shall mean the date on which any of the following events occurs:

(a)

(b)

(c)

any “person,” as such tennis used in Sections 13(d) and 14(d) of the Securities Exchange
Act of 1934, as amended (the “Act”) (other than the Company, any of its subsidiaries, or
any trustee, fiduciary or other person or entity holding securities under any employee
benefit plan or trust of the Company or any of its subsidiaries), together with all “affiliates”
and “associates” (as such terms are defined in Rule 12b-2 under the Act) of such person,
shall become the “beneficial owner” (as such term is defined in Rule 13d-3 under the Act),
directly or indirectly, of securities of the Company representing forty (40) percent or more
of the combined voting power of the Company’s then outstanding securities having the
right to vote in an election of the Board (“Voting Securities”) (in such case other than as a
result of an acquisition of securities directly from the Company); or

a majority of the members of the Board is replaced during any 12-month period by directors
whose appointment or election is not endorsed by a majority of the members of the Board
before the date of the appointment or election; or

the consummation of (i) any consolidation or merger of the Company where the
stockholders of the Company, immediately prior to the consolidation or merger, would not,
immediately after the consolidation or

Jeanette Potts
Employment Agreement

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Initials

merger, beneficially own (as such term is defined in Rule 13d-3 under the Act), directly or
indirectly, shares representing in the aggregate more than fifty (50) percent of the voting
shares of the Company issuing cash or securities in the consolidation or merger (or of its
ultimate parent corporation, if any), or (ii) any sale or other transfer (in one transaction or a
series of transactions contemplated or arranged by any party as a single plan) of all or
substantially all of the assets of the Company.

18.

19.

Reserved.

Termination. The Term shall continue until the termination of Executive’s employment with the

Company as provided below.

(a)

Events of Termination. Executive’s employment, Base Salary and any and all other rights of
Executive under this Agreement or otherwise as an employee of the Company will
terminate:

(i)

(ii)

upon the death of Executive;

upon the Disability of Executive (immediately upon notice from either party to the
other). For purposes hereof, the term “Disability” shall mean an incapacity by
accident, illness or other circumstances which renders Executive mentally or
physically incapable of performing the duties and services required of Executive
hereunder on a full-time basis for a period of at least 120 consecutive days.

(iii)

upon termination of Executive for Cause;

(iv)

(v)

(vi)

upon the resignation of employment by Executive without Good Reason (upon sixty
(60) days’ prior written notice);

upon termination by the Company for any reason other than those set forth in
Sections 19(a)(i) through 19(a)(iv) above;

upon voluntary resignation of employment by Executive for Good Reason as
described in Section 19(f), below;

(vii)

upon a Change of Control Termination as described in Section 19(g), below.

Jeanette Potts
Employment Agreement

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(b)

In the event Executive’s termination occurs pursuant to Sections 19(a)(i) -

(i)

above, Executive will be entitled only to the Accrued Benefits through the
termination date. The Company will have no further obligation to pay any
compensation of any kind (including, without limitation, any Bonus or portion of a
Bonus that otherwise may have become due and payable to Executive with respect
to the year in which such termination date occurs), or severance payment of any
kind, unless otherwise provided herein. For purposes of this Agreement, Accrued
Benefits shall mean (i) payment of Base Salary through the termination date, (ii)
subject to the above and to Section 7(b), payment of any bonus for performance
periods completed prior to the termination date, (iii) any payments or benefits under
the Company’s benefit plans that are vested, earned or accrued prior to the
termination date (including, without limitation, earned but unused vacation); and
(iv) payment of unreimbursed business expenses incurred by Executive.

(c)

For purposes of this Agreement, “Cause” shall mean the good faith determination by the
Company after written notice from the Company to Executive that one or more of the
following events has occurred and stating with reasonable specificity the actions that
constitute Cause and the specific reasonable cure (related to subsections (i) and (viii)
below):

(i)

(ii)

(iii)

(iv)

(v)

Executive has willfully or repeatedly failed to perform Executive’s material duties
and such failure has not been cured after a period of thirty (30) days’ written notice;

any reckless or grossly negligent act by Executive having the foreseeable effect of
injuring the interest, business, or reputation of the Company, or any of its parents,
subsidiaries, or affiliates in any material respect;

Executive’s evidenced use of any illegal drug, or illegal narcotic, or excessive
amounts of alcohol (as determined by the Company in its reasonable discretion) on
Company property or at a function where Executive is working on behalf of the
Company;

the indictment on charges or conviction for (or the procedural equivalent of
conviction for), or entering of a guilty plea or plea of no contest with respect to a
felony;

the conviction for (or the procedural equivalent of conviction for), or entering of a
guilty plea or plea of no contest with respect to a misdemeanor which, in the
Company’s reasonable judgment, involves moral turpitude deceit, dishonesty or
fraud; except that, in the event that Executive is indicted on charges for a
misdemeanor

Jeanette Potts
Employment Agreement

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set forth in this subsection 19(c)(v), the Company may elect, in its sole discretion, to
place Executive on administrative garden leave with or without continuation of full
compensation and benefits under this Agreement during the pendency of the
proceedings;

(vi)

(vii)

(viii)

conduct by or at the direction of Executive constituting misappropriation or
embezzlement of the property of the Company, or any of its parents or affiliates
(other than the occasional, customary and de minimis use of Company property for
personal purposes);

a breach by Executive of a fiduciary duty owing to the Company, including the
misappropriation of (or attempted misappropriation of) a corporate opportunity or
undisclosed self-dealing;

a material breach by Executive of any material provision ofthis Agreement, any of
the Company’s written employment policies or Executive’s fiduciary duties to the
Company, which breach, if curable, remains uncured for a period of thirty (30) days
after receipt by Executive of written notice of such breach from the Company,
which notice shall contain a reasonably specific description of such breach and the
specific reasonable cure requested by the Board; and

(ix)

any breach of Executive’s Confidentiality, Developments, and Restrictive Covenants
Agreement.

The definition of Cause set forth in this Agreement shall govern for purposes of Executive’s
equity compensation and any other compensation containing such a concept.

Notice Period for Termination Under Section 19(a)(iv). Upon a termination of Executive
under Section 19(a)(iv), during the notice period the Company may, in its sole discretion,
relieve Executive of all of Executive’s duties, responsibilities, and authority, may restrict
Executive’s access to Company property, and may take other appropriate measures deemed
necessary under the circumstances.

Termination by Executive for Good Reason. During the Term, Executive may terminate this
Agreement at any time upon thirty (30) days’ written notice to the Company for Good
Reason. For purposes ofthis Agreement, “Good Reason” shall mean that Executive has
complied with the Good Reason Process (hereinafter defined) following the occurrence of
any of the following actions undertaken by the Company without Executive’s express prior
written consent: (i) the material diminution in Executive’s responsibilities, authority and
function; (ii) a material reduction in Executive’s Base Salary, provided, however, that Good
Reason shall not

(d)

(e)

(f)

Jeanette Potts
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be deemed to have occurred in the event of a reduction in Executive’s Base Salary which is
pursuant to a salary reduction program affecting the CEO and all or substantially all other
senior management employees of the Company and that does not adversely affect
Executive to a greater extent than other similarly situated employees; provided, however
that such reduction may not exceed twenty (20%) percent; (iii) a material change in the
geographic location at which Executive provides services to the Company (i.e., outside a
radius of fifty (50) miles from Lexington, Massachusetts); or (iv) a material breach by the
Company of this Agreement or any other material agreement between Executive and the
Company concerning the terms and conditions of Executive’s employment, benefits or
Executive’s compensation (each a “Good Reason Condition”).

“Good Reason Process” shall mean that: (i) Executive has reasonably determined in good
faith that a Good Reason Condition has occurred; (ii) Executive has notified the Company
in writing of the first occurrence of the Good Reason Condition within 60 days of the first
occurrence  of  such  condition;  (iii)  Executive  has  cooperated  in  good  faith  with  the
Company’s  efforts,  for  a  period  not  less  than  thirty  (30)  days  following  such  notice  (the
“Cure  Period”),  to  remedy  the  condition;  (iv)  notwithstanding  such  efforts,  the  Good
Reason Condition continues to exist; and (v) Executive terminates employment within sixty
(60) days after the end of the Cure Period. If the Company cures to Executive’s satisfaction
(not  unreasonably  withheld)  the  Good  Reason  condition  during  the  Cure  Period,  Good
Reason shall be deemed not to have occurred.

(g)

Termination As A Result of a Change Of Control. For purposes of this Agreement, “Change
of Control Termination” shall mean any of the following:

(i)

(ii)

(iii)

Any termination by the Company of Executive’s employment, other than for Cause
(as defined in Section 19(c), above), that occurs within the period beginning ninety
(90) days before and continuing until twelve (12) months after the Change of
Control; or

Any resignation by Executive for Good Reason (as defined in Section 19(f), above),
that occurs within twelve (12) months after the Change of Control.

For purposes of this Section 19(g), “Change of Control” shall have the same
meaning as defined above in Section 17.

(h)

Separation Benefits. Should Executive experience a termination of employment during the
Term pursuant to Section 19(a)(v), (vi) or (vii) above, in addition to the Accrued Benefits
Executive shall also be entitled to:

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(i)

Lump Sum Severance Payment:

a.

b.

In the case of a termination of employment during the Term pursuant to
Section 19(a)(v) or (vi) above: a lump sum severance . payment equal to
100% of the sum of (A) Executive’s annual Base Salary and (B) Executive’s
target Bonus amount pursuant to Section 7(b) hereof(i.e., forty percent
(40%) of Executive’s annual Base Salary);

In the case of a termination of employment during the Term pursuant to
Section 19(a)(vii) above: a lump sum severance payment equal to 150% of
the sum of (A) Executive’s annual Base Salary and (B) Executive’s target
Bonus amount pursuant to Section 7(b) hereof (i.e., forty percent (40%) of
Executive’s annual Base Salary);

(ii)

(iii)

a Pro-rata Bonus paid at the target bonus amount for the year of termination, as set
forth in and subject to Section 7(b); as used in this Agreement, the term “Pro-rata
Bonus” shall mean the product of the formula Bx D/365 where B represents the
target Bonus (i.e., i.e., forty percent (40%) of Executive’s annual Base Salary), and
D represents the number of days elapsed in the calendar year through the date of the
separation of Executive’s employment from the Company.

Provided that Executive and Executive’s eligible dependents, if any, are
participating in the Company’s group health, dental and vision plans on the
termination date and elect on a timely basis to continue that participation in some or
all of the offered plans through the federal law commonly known as “COBRA,” the
Company will pay or reimburse Executive for Executive’s full COBRA premiums
(i.e., employer and employee portion) until the earlier to occur of: (a) the expiration
of the COBRA Payment Term (as defined below), (b) the date Executive becomes
eligible to enroll in the health, dental and/or vision plans of another employer,

(i)

the date Executive (and/or Executive’s eligible dependents, as applicable) is no longer
eligible for COBRA coverage, or (d) the Company in good faith determines that payments
under this paragraph would result in a discriminatory health plan pursuant to the Patient
Protection and Affordable Care Act of 2010, as amended, and any guidance or regulations
promulgated thereunder (collectively, “PPACA”). Executive agrees to notify the Company
promptly if Executive becomes eligible to enroll in the plans of another employer or if
Executive or any of Executive’s dependents cease to be eligible to continue participation in
the Company’s plans through COBRA. “COBRA Payment Term” mean (x) in the case of a
termination of employment during the Term pursuant to

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Section 19(a)(v) or (vi) above, the twelve (12) month anniversary of Executive’s
termination date, and (y) in the case of a termination of employment during the Term
pursuant to Section 19(a)(vii) above, the eighteen (18) month anniversary of Executive’s
termination date.

To avoid duplication of severance payments, any amount paid under this subsection shall be offset
against any severance amounts that may be owed by the Company to Executive pursuant to any of
Company’s Change of Control guidelines as may be adopted or amended.

20.

General Release of Claims. Notwithstanding any provision of this agreement, all severance

payments and benefits described in Section 19 of this Agreement (except for payment of the Accrued Benefits)
are conditioned upon the execution, delivery to the Company, and expiration of any applicable revocation period
without a notice of revocation having been given by Executive, all by the 30th day following the termination date
of a General Release of Claims by and between Executive (or Executive’s estate) and the Company in the form
attached as Exhibit B to this Agreement. (In the event of Executive’s death or incapacity due to Disability, the
release will be revised for signature accordingly.) Provided any applicable timing requirements set forth above
have been met, the payments and benefits will be paid or provided to Executive as soon as administratively
practicable (but not later than forty-five (45) days) following the date Executive signs and delivers the General
Release to the Company and any applicable revocation period has expired without a notice of revocation having
been given. Any severance or termination pay will be the sole and exclusive remedy, compensation or benefit due
to Executive or Executive’s estate upon any termination of Executive’s employment (without limiting Executive’s
tights under any disability, life insurance, or deferred compensation arrangement in which Executive participates
or at the time of such termination of employment or any Option Agreements or any other equity agreements to
which Executive is a party). If such 45-day period spans two calendar years, payment will be paid after such 45-
day period and revocation period have expired.

21.

Certain Company Remedies. Executive acknowledges that Executive’s promised services and
covenants are of a special and unique character, which give them peculiar value, the loss of which cannot be
reasonably or adequately compensated for in an action at law, and that, in the event there is a breach hereof by
Executive, the Company will suffer irreparable harm, the amount of which will be impossible to ascertain.
Accordingly, the Company shall be entitled, if it so elects, to institute and prosecute proceedings in any court of
competent jurisdiction, either at law or in equity, to obtain damages for any breach of this Agreement, or to enjoin
Executive from committing any act in breach of this Agreement. The remedies granted to the Company in this
Agreement are cumulative and are in addition to remedies otherwise available to the Company at law or in equity.

22.

Indemnification.

(a)

The Company agrees that Executive shall be entitled to indemnification to the fullest extent
permitted by Delaware law and under the Company’s articles of incorporation, bylaws and
any other corporate-related plan, program, or policy. In addition, for a period of at least
three (3) years after

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(b)

Executive’s termination of employment, the Company shall maintain a directors and
officers liability insurance policy under which Executive shall be included as a “Covered
Person.”

In addition, and for the sake of clarity, the Company hereby specifically agrees that (i) if
Executive is made a party, or is threatened to be made a party, to any “Proceeding” (defined
as any threatened or actual suit or proceeding whether civil, criminal, administrative,
investigative, appellate or other) by reason of the fact that (I) Executive is or was an
employee, officer, director, agent, consultant or representative of the Company, or (2) is or
was serving at the request of the Company as employee, officer, director, agent, consultant
or representative of another person, or (ii) if any “Claim” (defined as any claim, demand,
request, investigation, dispute, controversy, threat, discovery request or request for
testimony or information) is made, or threatened to be made, that arises out of or relates to
Executive’s service in any of the foregoing capacity or to the Company, then Executive
shall be indemnified and held harmless by the Company to the fullest extent permitted by
applicable law, against any and all costs, expenses, liabilities and losses (including, without
limitation, attorney’s fees, judgments, interest, expenses of investigation, penalties, fines,
taxes or penalties and amounts paid or to be paid in settlement) incurred or suffered by
Executive in connection therewith, except with respect to any costs, expenses, liabilities or
losses (A) that were incurred of suffered as a result of Executive’s willful misconduct, gross
negligence or knowing violation of any written agreement between Executive and the
Company, (B) that a court of competent jurisdiction determines to have resulted from
Executive’s knowing and fraudulent acts; provided, however, that the Company shall
provide such indemnification only if (I) notice of any such Proceeding is given promptly to
the Company, by Executive; (II) the Company is permitted to participate in and assume the
defense of any such Proceeding; (III) such cost, expense, liability or loss results from the
final judgment of a court of competent jurisdiction or as a result of a settlement entered into
with the prior written consent of the Company; and (IV) in the case of any such Proceeding
(or part thereof) initiated by Executive, such Proceeding (or part thereof) was authorized in
advance in writing by the Company. Such indemnification shall continue even if Executive
has ceased to be an employee, officer, director, agent, consultant, or representative of the
Company until all applicable statute of limitations have expired, and shall inure to the
benefit of Executive’s heirs, executors, and administrators. The Company shall pay directly
or advance to Executive all costs and expenses incurred by Executive in connection with
any such Proceeding or Claim (except for Proceedings brought by the Company against
Executive for claims other than shareholder derivative actions) within 30 days after
receiving written notice requesting such an advance. Such notice shall include, to the extent
required by applicable law, an undertaking by Executive to repay the amount advanced if

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Executive was ultimately determined not to be entitled to indemnification against such costs
and expenses.

23. Miscellaneous.

(a)

(b)

(c)

Right to Offset. The Company may offset any undisputed amounts Executive owes the
Company at the time of Executive’s termination of employment (including any payment of
Accrued Benefits or separation pay), except for secured or unsecured loans, against any
amounts the Company owes Executive hereunder, subject in all cases to the requirements of
Section 409A of the Code.

Cooperation. Executive agrees that, during and after Executive’s employment with the
Company, subject to reimbursement of Executive’s reasonable expenses, Executive will
cooperate fully with the Company and its counsel with respect to any matter (including,
without limitation, litigation, investigations, or governmental proceedings) in which
Executive was in any way involved during Executive’s employment with the Company.
Executive shall render such cooperation in a timely manner on reasonable notice from the
Company, and at such times and places as reasonably acceptable to Executive and the
Company. The Company, following Executive’s termination of employment, exercises
commercially reasonable efforts to schedule and limit its need for Executive’s cooperation
under this paragraph so as not to interfere with Executive’s other personal and professional
commitments.

Company Documents and Property. Upon termination of Executive’s employment with the
Company, or at any other time upon the request of Company, Executive shall forthwith
deliver to Company any and all documents, notes, notebooks, letters, manuals, prints,
drawings, block diagrams, photocopies of documents, devices, equipment, keys, security
passes, credit cards, hardware, data, databases, source code, object code, and data or
computer programming code stored on an optical or electronic medium, and any copies
thereof, in the possession of or under the control of Executive that embodies any
confidential information of the Company. Executive agrees to refrain from purging or
deleting data from any Company-owned equipment, including email systems, in connection
with Executive’s termination. To the extent that Executive possesses any data belonging to
Company on any storage media owned by Executive (for example, a home computer’s hard
disk drive, portable data storage device, etc.), Executive agrees that Executive will work
cooperatively with the Company to return such data and ensure it is removed from
Executive’s devices in a manner that does not adversely impact any personal data.
Executive agrees not to take any steps to delete any Company data from any device without
first obtaining Company’s written approval. Executive agrees to cooperate with Company if
Company requests written or other positive confirmation of the return or destruction of such
data from any

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(d)

(e)

personal storage media. Nothing herein shall be deemed to prohibit Executive from
retaining (and making copies of): Executive’s personal non-business-related
correspondence files; or (ii) documents relating to Executive’s personal compensation,
benefits, and obligations, and documents reasonably necessary to prepare personal income
tax returns.

Waivers. No waiver of any provision will be effective unless made in writing and signed by
the waiving party. The failure of any party to require the performance of any term or
obligation of this Agreement does not prevent subsequent enforcement of that term or
obligation. The waiver by any party of any breach of this Agreement does not waive any
subsequent breach.

Section 409A. This Agreement is intended to comply with Section 409A of the Code, and
its corresponding regulations, or an exemption thereto, and payments may only be made
under this Agreement upon an event and in a manner permitted by Section 409A of the
Code, to the extent applicable. Severance benefits under this Agreement are intended to be
exempt from Section 409A of the Code under the “short-term deferral” exception, to the
maximum extent applicable, and then under the “separation pay” exception, to the
maximum extent applicable. Notwithstanding anything in this Agreement to the contrary, if
required by Section 409A of the Code, if Executive is considered a “specified employee”
for purposes of Section 409A of the Code and if payment of any amounts under this
Agreement is required to be delayed for a period of six months after separation from service
pursuant to Section 409A of the Code, payment of such amounts shall be delayed as
required by Section 409A of the Code, and the accumulated amounts shall be paid in a
lump-sum payment within 10 days after the end of the six-month period. If Executive dies
during the postponement period prior to the payment of benefits, the amounts withheld on
account of Section 409A of the Code shall be paid to the personal representative of
Executive’s estate within 60 days after the date of Executive’s death. All payments to be
made upon a termination of employment under this Agreement may only be made upon a
“separation from service” under Section 409A of the Code. For purposes of Section 409A
of the Code, each payment hereunder shall be treated as a separate payment, and the right to
a series of installment payments under this Agreement shall be treated as a right to a series
of separate payments. In no event may Executive, directly, or indirectly, designate the fiscal
year of a payment. Notwithstanding any provision of this Agreement to the contrary, in no
event shall the timing of Executive’s execution of the General Release, directly or
indirectly, result in Executive’s designating the fiscal year of payment of any amounts of
deferred compensation subject to Section 409A of the Code, and if a payment that is subject
to execution of the General Release could be made in more than one taxable year, payment
shall be made in the later taxable year. All reimbursements and in-kind benefits provided
under this Agreement shall be made or provided in accordance with the requirements of
Section 409A of the Code, including, where applicable, the requirement that (i) any
reimbursement be for expenses incurred during the period specified in this Agreement, (ii)
the amount of expenses eligible for reimbursement, or in  kind benefits provided, during a
fiscal year not affect the expenses eligible for reimbursement, or in-kind benefits to be
provided, in any other fiscal year, (iii) the reimbursement of an eligible expense be made no
later than the last day of the fiscal year following the year in which the expense is incurred,
and (iv) the right to reimbursement or in-kind benefits not be subject to liquidation or
exchange for another benefit.

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(f)

(g)

(h)

(i)

(j)

Governing Law; Consent to Exclusive Jurisdiction and Venue. This Agreement and all
questions relating to its validity, interpretation, performance and enforcement (including,
without limitation, provisions concerning limitations of actions), shall be governed by and
construed in accordance with the laws of the Commonwealth of Massachusetts
(notwithstanding any conflict-of-laws doctrines of such state or other jurisdiction to the
contrary), and without the aid of any canon, custom or rule of law requiring construction
against the draftsman. The parties hereby consent and submit to the exclusive jurisdiction
of the federal and state courts in the Commonwealth of Massachusetts, and to exclusive
venue in any Massachusetts federal court and/or Massachusetts state court located in
Suffolk County, for any dispute arising from this Agreement.

Notices. Any notices, requests, demands, and other communications described in this
Agreement are sufficient if in writing and delivered in person or sent postage prepaid, by
certified or registered U.S. mail or by FedEx/UPS to Executive at Executive’s last known
home address and a copy by e-mail to Executive, or in the case of the Company, to the
attention of the CFO or SVP HR, copy to the CEO at the main office of uniQure, N.V. Any
notice sent by U.S. mail shall be deemed given for all purposes 72 hours from its deposit in
the U.S. mail, or the next day if sent by overnight delivery.

Successors and Assigns. Executive may not assign this Agreement, by operation of law or
otherwise, without the Company’s prior written consent. Without the Company’s consent,
any attempted transfer or assignment will be void and of no effect. The Company may
assign its rights under this Agreement if the Company consolidates with or merges into any
other entity, or transfers substantially all its properties or assets to any other entity, provided
that such entity expressly agrees to be bound by the provisions hereof. This Agreement will
inure to the benefit of and be binding upon the Company and Executive, their respective
successors, executors, administrators, heirs, and permitted assigns.

Counterparts; Facsimile. This Agreement may be executed in two or more counterparts,
each of which shall be an original and all of which together shall constitute one and the
same instrument. This Agreement may be executed by facsimile transmission, PDF,
electronic signature or other similar electronic means with the same force and effect as if
such signature page were an original thereof.

Severability. The provisions of this Agreement are independent of and separable from each
other, and no provision shall be affected or rendered invalid or unenforceable by virtue of
the fact that for any reason any other provision or provisions may be invalid or
unenforceable in whole or in part.

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(k)

(l)

(m)

(n)

Enforceability. If any portion or provision of the Agreement is declared illegal or
unenforceable by a court of competent jurisdiction, the remainder of the Agreement will not
be affected, and each remaining portion and provision of this Agreement will be valid and
enforceable to the fullest extent permitted by law.

Survival. Sections 13, 20, 21, and the Company’s Confidentiality, Developments, and
Restrictive Covenants Agreement (Exhibit A) and all other provisions necessary to give
effect thereto, shall survive the termination of Executive’s employment for any reason.

Recoupment and Other Policies. All payments under this Agreement shall be subject to any
applicable clawback and recoupment policies and other policies that may be implemented
by the Board from time to time, including, without limitation, the Company’s right to
recover amounts in the event of a financial restatement due in whole or in part to fraud or
misconduct by one or more of the Company’s executives or in the event Executive violates
any applicable restrictive covenants in favor of the Company to which Executive is subject.

Entire Agreement; Amendment. This Agreement contains the entire understanding among
the parties hereto with respect to the subject matter hereof, and supersedes all prior and
contemporaneous agreements and understandings, inducements or conditions, express or
implied, oral or written, between the parties hereto (including without limitation any prior
employment agreements between the parties hereto); provided, however, that any
agreements referenced in this Agreement or executed herewith are not superseded. The
express terms hereof control and supersede any course of performance and/or usage of the
trade inconsistent with any of the terms hereof. This Agreement may be amended or
modified only by a written instrument signed by Executive and by a duly authorized
representative of the Company.

(o)

Section Headings. The section headings in this Agreement are for convenience only, form
no part ofthis Agreement and shall not affect its interpretation.

[This space intentionally left blank.]

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IN WITNESS WHEREOF, the parties have executed and delivered this Agreement as of the date first

above written.

uniQure, Inc.

By:/s/

Name: Matthew Kapusta
Title: Chief Executive Officer

EXECUTIVE

Jeannette Potts, Ph.D., J.D.

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EXHIBIT A

UNIQURE, INC.
CONFIDENTIALITY, DEVELOPMENTS, AND
RESTRICTIVE COVENANTS AGREEMENT

Confidential

Confidentiality, Development and
Restrictive Covenant Agreement

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EXHIBIT B

GENERAL RELEASE OF CLAIMS

In exchange for the promises and benefits set forth in Section 19 of the Employment Agreement between
uniQure, Inc. and Jeannette Potts, Ph.D., J.D. made as of [May 22, 2023], and to be provided to me following the
Effective Date of this General Release, I, Jeanette Potts, on behalf of myself, my heirs, executors and assigns,
hereby acknowledge, understand and agree as follows:

1.

On behalf of myself and my family, heirs, executors, administrators, personal representatives,

agents, employees, assigns, legal representatives, accountants, affiliates and for any partnerships, corporations,
sole proprietorships, or other entities owned or controlled by me, I fully release, acquit, and forever discharge
uniQure, Inc., its past, present and future officers, directors, shareholders, agents, representatives, insurers,
employees, attorneys, subsidiaries, affiliated corporations, parents, and assigns (collectively, the “Releasees”),
from any and all charges, actions, causes of action, claims, grievances, damages, obligations, suits, agreements,
costs, expenses, attorneys’ fees, or any other liability of any kind whatsoever, suspected or unsuspected, known or
unknown, which have or could have arisen out of my employment with or services performed for Releasees
and/or tennination of my employment with or termination of my services performed for Releasees (collectively,
“Claims”), including:

a.

b.

c.

d.

e.

Claims arising under Title VII of the Civil Rights Act of 1964 (as amended); the Civil
Rights Acts of 1866 and 1991; the Americans With Disabilities Act; the Family and
Medical Leave Act; the Employee Retirement Income Security Act; the Occupational
Health and Safety Act; the Sarbanes-Oxley Act; the Massachusetts Law Against
Discrimination (M.G.L. c. 151B, et seq., and/or any other laws of the Commonwealth of
Massachusetts related to employment or the separation from employment;

Claims for age discrimination arising under the Age Discrimination in Employment Act of
1967 (as amended) (“ADEA’’) and the Older Workers Benefits Protection Act, except
ADEA claims that may arise after the execution of this General Release;

Claims arising out of any other federal, state, local or municipal statute, law, constitution,
ordinance, or regulation; and/or

Any other employment related claim whatsoever, whether in contract, tort, or any other
legal theory, arising out of or relating to my employment with the Company and/or my
separation of employment from the Releasees.

Excluded from this General Release are any claims that cannot be released or waived by
law. This includes, but is not limited to, my right to file a charge with or participate in an
investigation conducted by certain government agencies, such as the EEOC or NLRB. I
acknowledge and agree, however, that I am releasing and waiving my right to any monetary

Confidentiality, Development and
Restrictive Covenant Agreement

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recovery should any government agency pursue any claims on my behalf that arose prior to
the Effective Date of this General Release.

f.

I waive all rights to re-employment with the Releasees. If I do apply for employment with
the Releasees, the Releasees and I agree that the Releasees need not employ me, and that if
the Releasees declines to employ me for any reason, it shall not be liable to me for any
cause of action or damages whatsoever.

2.

Release of Other Claims. I fully release, acquit, and forever discharge the Releasees from any and

all other charges, actions, causes of action, claims, grievances, damages, obligations, suits, agreements, costs,
expenses, attorneys’ fees or any other liability of any kind whatsoever related to my employment, my employment
agreement, my termination or the business of uniQure of which I have knowledge as of the time I sign this
General Release.

3.

I further acknowledge that I have received payment, salary, and wages in full for all services

rendered in conjunction with my employment with uniQure, Inc., including payment for all wages, bonuses, and
accrued, unused paid time off, and that no other compensation is owed to me except as provided herein. I
specifically understand that this general release of claims includes, without limitation, a release of claims for
alleged wages due, overtime or other compensation or payment including any claim for treble damages, attorneys’
fees and costs pursuant to the Massachusetts Wage Act and State Overtime Law M.G.L. c. 149, §§148, 150 et seq.
and M.G.L. c. 151, §IA et seq. and I further acknowledge that I are unaware of any facts that would support a
claim against the Released Parties for violation of the Fair Labor Standards Act or the Massachusetts Wage Act.

4.

Notwithstanding anything to the contrary herein, nothing in this General Release shall be deemed

to release any of the Releasees for: (i) any claim for the payment of compensation due under the Employment
Agreement; (ii) any claim for any of the Accrued Benefits under the Employment Agreement; (iii) any claim for
any separation benefit under Section 19 of the Employment Agreement including, without limitation, separation
pay and accelerated vesting of stock options (as applicable and as defined in the Employment Agreement); or (iv)
any rights to indemnification or coverage under a directors and officers liability insurance policy.

5.

Restrictive Covenants. I acknowledge and agree that all of my obligations under the restrictive

covenants in my Confidentiality, Developments, and Restrictive Covenants Agreement remain in full force and
effect and shall survive the termination of my employment with the Releasees and the execution of this General
Release.

6.

Consultation with Attorney. I am advised and encouraged to consult with an attorney prior to

executing this General Release. I acknowledge that if I have executed this General Release without consulting an
attorney, I have done so knowingly and voluntarily.

7.

Period for Review. I acknowledge that I have been given at least 21 days from the date I first

received this General Release (or at least 45 days from the date I first received this

Confidentiality, Development and
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General Release if my termination is part of a group reduction in force) during which to consider signing it.

8.

Revocation of General Release. I acknowledge and agree that I have the right to revoke my

acceptance of this General Release if I notify the Releasees in writing within 7 calendar days following the date I
sign it. Any revocation, to be effective, must be in writing, signed by me, and either: a) postmarked within 7
calendar days of the date I signed it and addressed to the then current address of uniQure, Inc.’s headquarters (to
the attention of the CEO); orb) hand delivered within 7 days of execution of this General Release to the uniQure,
Inc.’s CEO. This General Release will become effective on the 8th day after I sign it (the “Effective Date ofthis
General Release”); provided that I have not timely revoked it.

I ACKNOWLEDGE AND AGREE THAT I HAVE BEEN ADVISED THAT THE GENERAL RELEASE IS A
LEGAL DOCUMENT, AND I HAVE BEEN ADVISED TO CONSULT WITH AN ATTORNEY
CONCERNING THIS GENERAL RELEASE. I ACKNOWLEDGE AND AGREE THAT I HAVE CAREFULLY
READ AND FULLY UNDERSTAND ALL PROVISIONS OF THIS GENERAL RELEASE AND I AM
VOLUNTARILY AND KNOWINGLY SIGNING IT.

IN, WITNESS WHEREOF, I have duly executed this Agreement under seal as of the ___ day of

_________ [month], __________ [year]

Jeannette Potts, Ph.D., J.D.

Confidentiality, Development and
Restrictive Covenant Agreement

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UNIQURE N.V.

Code Of Conduct

(Amended as of February 27, 2024)

Exhibit 14.1

1.

Introduction

The  Board  of  Directors  (the  “Board”)  of  uniQure  N.V.  and  its  subsidiaries  (collectively,  the  “Company”)  has  adopted
this  code  of  conduct  (as  amended  or  modified  from  time  to  time  by  the  Board,  this  “Code”),  which  sets  forth  legal  and
ethical standards of conduct for employees, directors and senior managers (“officers”) of the Company. While this Code is
specifically written for employees, directors and officers, we expect contractors, consultants and others temporarily assigned
to perform work or services for the Company to follow this Code (each, “you” or the “Covered Person,” and collectively, the
“Covered Persons”).

This Code is intended to: (i) promote honest and ethical conduct, including the ethical handling of actual or apparent
conflicts of interest; (ii) promote the full, fair and accurate disclosure of information in reports, documents and other filings
made by the Company to the Securities and Exchange Commission (the “SEC”) and in other public communications made
by  the  Company;  (iii)  deter  wrongdoing;  and  (iv)  promote  the  conduct  of  all  Company  business  in  accordance  with  high
standards of integrity and in compliance with all applicable laws and regulations.

Except as otherwise required by applicable local law, this Code applies to uniQure N.V. and all of its direct and indirect
subsidiaries  and  other  business  entities  controlled  by  the  Company  worldwide.  If  you  have  any  questions  regarding  this
Code or its application to you in any situation, you should contact your supervisor or the Company’s Chief Legal Officer.

2. Compliance with Laws, Rules and Regulations

The Company requires that all employees, directors and officers comply with all laws, rules and regulations applicable
to the Company wherever it does business.  You are expected to use good judgment and common sense in seeking to comply
with  all  applicable  laws,  rules  and  regulations  and  to  ask  for  advice  when  you  are  uncertain  about  them.  While  it  is  the
Company’s desire to address matters internally, nothing in this Code prohibits you from reporting any illegal activity to the
appropriate regulatory authority.

If you become aware of any of the following by the Company, whether by its employees, directors, officers or any third-
party doing business on behalf of the Company, it is your responsibility to promptly report the matter following the reporting
procedures set forth in Section 15 (Reporting, Enforcement and Compliance Procedures) below:

(i) suspected  violation  or  alleged  violation  of  any  applicable  law,  rule  or  regulation  arising  in  the  conduct  of  the

Company’s business or occurring on the Company’s property;

(ii) suspected violation or alleged violation of this Code or any other Company policies or procedures published on its

corporate website; or

(iii) questionable  accounting,  violations  of  internal  accounting  controls,  or  any  auditing  or  financial  matters,  or  the

reporting of fraudulent information.

See Section 15 (Reporting, Enforcement and Compliance Procedures) below for more information on reporting any of

the above.

The  Company  has  a  strict  non-retaliation  policy.  Covered  Persons  shall  not  discharge,  demote,  suspend,  threaten,
harass or in any other manner discriminate or retaliate against an employee because he or she reports any such violation.  If
the  report  was  made  with  knowledge  that  it  was  false,  the  Company  may  take  appropriate  disciplinary  action  up  to  and
including termination. This Code should not be construed to prohibit any Covered Person from testifying, participating or
otherwise assisting in any administrative, judicial or legislative proceeding or investigation.

3. Compliance with Company Policies

All Covered Persons are expected to comply with all Company policies and rules as in effect from time to time. You are

expected to familiarize yourself with such policies.

4. Conflicts of Interest

All Covered Persons must act in the best interests of the Company.  You must refrain from engaging in any activity or
having a personal interest that presents a “conflict of interest” and should seek to avoid even the appearance of a conflict of
interest.  A conflict of interest occurs when a Covered Person’s personal interest interferes with the interests of the Company.
 A conflict of interest can arise whenever you may take action or have an interest that prevents you from performing your
Company duties and responsibilities honestly, objectively and effectively.

All Covered Persons must comply with the detailed requirements set out in the Company’s Related Party Transactions
Policy, as amended from time to time, which is available on the Company’s intranet.  It is your responsibility to disclose any
transaction  or  relationship  that  reasonably  could  be  expected  to  give  rise  to  a  conflict-of-interest  pursuant  Section  15
(Reporting, Enforcement and Compliance Procedures) below.

5.

Insider Trading

Covered  Persons  who  have  material  non-public  information  about  the  Company  or  other  companies,  including  our
collaborators,  licensors,  licensees,  business  partners,  suppliers  and  customers,  as  a  result  of  their  relationship  with  the
Company are prohibited by law and Company policy from trading in securities of the Company or such other companies, as
well as from communicating such information to others who might trade on the basis of that information.  To help ensure
that you do not engage in prohibited insider trading and avoid even the appearance of an improper transaction, the Company
has adopted an Insider Trading Policy, as amended from time to time, which is available on the Company’s intranet.

If you are uncertain about the constraints on your purchase or sale of any Company securities or the securities of any
other  company  that  you  are  familiar  with  by  virtue  of  your  relationship  with  the  Company,  you  should  consult  the
Company’s Insider Trading Policy or the Company’s Chief Legal Officer before making any such purchase or sale.

6. Confidentiality

All Covered Persons must maintain the confidentiality of confidential information entrusted to them by the Company or
other companies, including our collaborators, licensors, licensees, business partners, suppliers and customers, except when
disclosure is authorized by a supervisor or legally permitted in connection with reporting illegal activity to the appropriate
regulatory authority.  Unauthorized

2

disclosure of any confidential information is prohibited.  Additionally, Covered Persons should take appropriate precautions
to ensure that confidential or sensitive business information, whether it is proprietary to the Company or another company, is
not communicated within the Company except to employees who have a need to know such information to perform their
responsibilities for the Company.

Third parties may ask you for information concerning the Company.  Subject to the exceptions noted in the preceding
paragraph,  Covered  Persons  (other  than  the  Company’s  authorized  spokespersons)  must  not  discuss  internal  Company
matters  with,  or  disseminate  internal  Company  information  to,  anyone  outside  the  Company,  except  as  required  in  the
performance  of  their  Company  duties  and,  if  appropriate,  after  a  confidentiality  agreement  is  in  place.    This  prohibition
applies particularly to inquiries concerning the Company from the media, market professionals (such as securities analysts,
institutional investors, investment advisers, brokers and dealers) and security holders.  All responses to inquiries on behalf of
the Company must be made only by the Company’s authorized spokespersons.  If you receive any inquiries of this nature,
you must decline to comment and refer the inquirer to your supervisor or one of the Company’s authorized spokespersons.
 The  Company’s  policies  with  respect  to  public  disclosure  of  internal  matters  are  described  more  fully  in  the  Company’s
Disclosure Policy, which is available on the Company’s intranet.

You also must abide by any lawful obligations that you have to your former employer.  These obligations may include
restrictions on the use and disclosure of confidential information, restrictions on the solicitation of former colleagues to work
at the Company and any applicable non-competition or non-solicitation obligations.

7. Honest and Ethical Conduct and Fair Dealing

All  Covered  Persons  should  endeavor  to  deal  honestly,  ethically  and  fairly  with  each  other  and  the  Company’s
collaborators,  licensors,  licensees,  business  partners,  suppliers,  customers,  and  competitors.    Statements  regarding  the
Company’s  therapies  and  services  must  not  be  untrue,  misleading,  deceptive  or  fraudulent.    You  must  not  take  unfair
advantage  of  anyone  through  manipulation,  concealment,  abuse  of  privileged  information,  misrepresentation  of  material
facts or any other unfair-dealing practice.

8. Protection and Proper Use of Corporate Assets

All Covered Persons should seek to protect the Company’s assets, including proprietary information.  Theft, carelessness
and waste have a direct impact on the Company’s financial performance.  You must use the Company’s assets and services
solely for legitimate business purposes of the Company and not for any personal benefit or the personal benefit of anyone
else.

Covered Persons must advance the Company’s legitimate interests when the opportunity to do so arises.  You must not
take for yourself personal opportunities that are discovered through your position with the Company or the use of property or
information of the Company.

9. Gifts and Gratuities

The use of Company funds or assets for gifts, gratuities or other favors to government officials is prohibited, except to
the extent such gifts, gratuities or other favors are in compliance with applicable law, insignificant in amount and not given
in consideration or expectation of any action by the recipient.  The use of Company funds or assets for gifts to any customer,
supplier, or other person doing or seeking to do

3

business  with  the  Company  is  prohibited,  except  to  the  extent  such  gifts  are  in  compliance  with  the  policies  of  both  the
Company and the recipient and are in compliance with applicable law.

Covered Persons must not accept or permit any member of his or her immediate family to accept, any gifts, gratuities or
other  favors  from  any  person  doing  or  seeking  to  do  business  with  the  Company,  other  than  items  of  insignificant  value.
 Any gifts that are not of insignificant value should be returned immediately and reported to your supervisor.  If immediate
return  is  not  practical,  they  should  be  given  to  the  Company  for  charitable  disposition  or  such  other  disposition  as  the
Company, in its sole discretion, believes appropriate.

Common sense and moderation should prevail in business entertainment engaged in on behalf of the Company.  Covered
Persons should provide, or accept, business entertainment to or from anyone doing business with the Company only if the
entertainment is infrequent, modest, intended to serve legitimate business goals and in compliance with applicable law.

10. Bribes and Kickbacks

Bribes and kickbacks are criminal acts, strictly prohibited by law.  You must not offer, give, solicit or receive any form
of  bribe  or  kickback  anywhere  in  the  world.   The  U.S.  Foreign  Corrupt  Practices  Act  prohibits  giving  anything  of  value,
directly or indirectly, to officials of foreign governments, departments, agencies or state-controlled entities, foreign political
parties or foreign political candidates in order to obtain or retain business.

11. Accuracy of Books and Records and Public Reports

All Covered Persons must honestly and accurately report all business transactions.  You are responsible for the accuracy
of  your  records  and  reports.  Accurate  information  is  essential  to  the  Company’s  ability  to  meet  its  legal  and  regulatory
obligations.

All  Company  books,  records  and  accounts  shall  be  maintained  in  accordance  with  all  applicable  regulations  and
standards  and  accurately  reflect  the  true  nature  of  the  transactions  they  record.   The  financial  statements  of  the  Company
shall  conform  to  applicable  generally  accepted  accounting  principles  and  the  Company’s  accounting  policies.    No
undisclosed  or  unrecorded  account  or  fund  shall  be  established  for  any  purpose.    No  false  or  misleading  entries  shall  be
made in the Company’s books or records for any reason, and no disbursement of corporate funds or other corporate property
shall be made without adequate supporting documentation.

It  is  the  policy  of  the  Company  to  provide  full,  fair,  accurate,  timely  and  understandable  disclosure  in  reports  and

documents filed with, or submitted to, the Securities and Exchange Commission and in other public communications.

12. Concerns Regarding Accounting or Auditing Matters

Employees  with  concerns  regarding  questionable  accounting  or  auditing  matters  or  complaints  regarding  accounting,
internal accounting controls or auditing matters may confidentially, and anonymously if they wish, submit such concerns or
complaints  following  the  reporting  procedures  described  in  Section  15  (Reporting,  Enforcement  and  Compliance
Procedures) below.

All  such  concerns  and  complaints  will  be  forwarded  to  the  Audit  Committee  of  the  Board  of  Directors  (the  “Audit
Committee”)  unless  they  are  determined  to  be  without  merit  by  the  Chief  Legal  Officer;  provided,  however,  that  if  such
concerns and complaints include any allegations of fraud or

4

violation of law or regulation, such concerns and complaints shall be forwarded to the Audit Committee regardless of merit.
In any event, a record of all complaints or concerns received regarding accounting or auditing matters will be provided to the
Audit Committee each fiscal quarter, or timelier, if in the opinion of the Chief Legal Officer, the complaint warrants more
immediate action.

The Audit Committee will evaluate the merits of any concerns or complaints received by it and authorize such follow-up
actions,  if  any,  as  it  deems  necessary  or  appropriate  to  address  the  substance  of  the  concern  or  complaint,  including
providing disclosure to the Company’s independent auditor.

The  Company  will  not  discipline,  discriminate  against  or  retaliate  against  any  employee  who  reports  a  complaint  or

concern, unless it is determined that the report was made with knowledge that it was false.

13. Dealings with Independent Auditors

No Covered Person shall, directly or indirectly, make or cause to be made a materially false or misleading statement to
an accountant in connection with (or omit to state, or cause another person to omit to state, any material fact necessary in
order to make statements made, in light of the circumstances under which such statements were made, not misleading to, an
accountant in connection with) any audit, review or examination of the Company’s financial statements or the preparation or
filing of any document or report with the SEC. No Covered Person shall, directly or indirectly, take any action to coerce,
manipulate,  mislead  or  fraudulently  influence  any  independent  public  or  certified  public  accountant  engaged  in  the
performance of an audit or review of the Company’s financial statements.

14. Waivers of this Code of Business Conduct and Ethics

While some of the policies contained in this Code must be strictly adhered to and no exceptions can be allowed, in other
cases exceptions may be appropriate.  Any Covered Person who believes that a waiver of any of these policies is appropriate
in his or her case should first contact his or her supervisor.  If the supervisor agrees that a waiver is appropriate, the approval
of the Chief Legal Officer must be obtained.  The Chief Legal Officer shall be responsible for maintaining a record of all
requests by employees or officers for waivers of any of these policies and the disposition of such requests.

Any officer or director who seeks a waiver of any of these policies should contact the Chief Legal Officer.  Any waiver
of this Code for officers or directors or any change to this Code that applies to officers or directors may be made only by the
Board or a committee delegated by the Board. All waivers will be disclosed as required by law or the rules of the Nasdaq
Stock Market.

15. Reporting, Enforcement and Compliance Procedures

Reporting. All Covered Persons have the responsibility to ask questions, seek guidance, report suspected violations and
express concerns regarding compliance with this Code to his or her supervisor or to the Chief Legal Officer, as described
below, or such other compliance officer as shall be designated from time to time by the Board.  Any Covered Person who
knows or believes that any other representative of the Company has engaged or is engaging in Company-related conduct that
violates applicable law or this Code should report such information to his or her supervisor or to the Chief Legal Officer.
  You  may  report  such  conduct  openly  or  anonymously  without  fear  of  retaliation.    The  Company  will  not  discipline,
discriminate against or retaliate against any employee who reports such conduct, unless it is determined that the report was
made  with  knowledge  that  it  was  false,  or  who  cooperates  in  any  investigation  or  inquiry  regarding  such  conduct.   Any
supervisor who receives a report of a violation of this Code must immediately inform the Chief Legal Officer.

5

You may report violations of this Code, on a confidential or anonymous basis, by:

(i)

(ii)

contacting the Chief Legal Officer, Jeannette Potts at j.potts@uniqure.com;

contacting the Chairperson of the Audit Committee, at auditcommitteechair@uniqure.com; or

(iii)

calling either the U.S. or Netherlands toll-free hotline:  US: (844) 548 9460, or the Netherlands: 08000 200

784.

While  we  prefer  that  you  identify  yourself  when  reporting  violations  so  that  we  may  follow  up  with  you,  as

necessary, for additional information, you may remain anonymous if you wish.

Enforcement  and  Compliance  Procedures.  If  the  Chief  Legal  Officer  or  Chairperson  of  the  Audit  Committee

receives information regarding an alleged violation of this Code, he or she shall, as appropriate, take the following steps:

evaluate such information and acknowledge receipt of the report to the sender within a reasonable period of

(i)
time, and document such complaint;

determine whether the allegation is with merit, and, if so, whether it is necessary or appropriate to conduct

(ii)
an informal inquiry or a formal investigation;

if the alleged violation is determined to be with merit and involves (x) an officer or director of the Company,
(iii)
inform the Chief Executive Officer and the Board of the alleged violation (unless such allegation involves the Chief
Executive Officer, in which case only the Board shall be informed), or (y) accounting or audit matters (as further set
forth in Section 12 above), inform the Audit Committee;

if the alleged violation is determined to be without merit and involves allegations of fraud or violation of

(iv)
law or regulation, inform the Audit Committee; and

to the extent it is determined that an investigation is necessary or appropriate, report the results of any such
(v)
inquiry  or  investigation,  together  with  a  recommendation  as  to  disposition  of  the  matter,  to  the  Chief  Executive
Officer for action, or if the alleged violation involves the Chief Executive Officer, a director or allegation of fraud,
report the results of any such inquiry or investigation to the Board or a committee thereof.

The  Chief  Legal  Officer,  Chairperson  of  the  Audit  Committee  or  other  authorized  committee  or  officer  shall
determine whether violations of this Code have occurred and, if so, shall determine the disciplinary measures to be taken
against the individual who has violated this Code.  The determination of whether a violation of this Code has occurred and
the  resulting  disciplinary  measures  shall  be  made  by  the  Chief  Executive  Officer  and  the  Chairperson  of  the  Audit
Committee if the alleged violation involves an officer, and the Board if the alleged violation involves a director.

All Covered Persons are expected to cooperate fully with any inquiry or investigation by the Company regarding an
alleged violation of this Code.  Failure to cooperate with any such inquiry or investigation may result in disciplinary action,
up to and including discharge. Failure to comply with the standards outlined in this Code will result in disciplinary action
including, but not limited to, reprimands, warnings, probation or suspension without pay, demotions, reductions in salary,
discharge and restitution.

6

Certain violations of this Code may require the Company to refer the matter to the appropriate governmental or regulatory
authorities for investigation or prosecution.  Moreover, any supervisor who directs or approves of any conduct in violation of
this Code, or who has knowledge of such conduct and does not immediately report it, also will be subject to disciplinary
action, up to and including discharge.

16. Dissemination, Amendment and Administration

This Code shall be distributed to each new employee, director and officer of the Company upon commencement of his
or her employment or other relationship with the Company and shall also be distributed annually to each employee, director
and officer of the Company. The most current version of this Code can be found on the Company’s intranet.

The Company reserves the right to amend, alter or terminate this Code at any time for any reason. Any revisions to this

Code regarding Section 12 shall be approved by the Audit Committee in accordance with Exchange Act Rule 10A-3(b)(3).

Subject to the policies and procedures set forth herein, the Chief Legal Officer is responsible for the administration of

this Code.

7

February 28, 2024

Name of Subsidiary
uniQure biopharma B.V.
uniQure IP B.V.
uniQure Inc.
uniQure France SAS
Corlieve Therapeutics AG

SUBSIDIARIES OF UNIQURE N.V.

     Jurisdiction of Organization

The Netherlands
The Netherlands
Delaware
France
Switzerland

Exhibit 21.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the registration statements (No. 333-253749) on Form S-3 and (No. 333-
258036, No. 333-225629, No. 333-222051, No. 333-218005, No. 333-197887, No. 333-270039 and No. 333-275944) on
Form S-8 of our report dated February 28, 2024, with respect to the consolidated financial statements of uniQure N.V. and
the effectiveness of internal control over financial reporting.

/s/ KPMG Accountants N.V.

Exhibit 23.1

Amstelveen, the Netherlands

February 28, 2024

Exhibit 31.1

Certification of Chief Executive Officer

I, Matthew Kapusta, certify that:

1.                                      I have reviewed this Annual Report on Form 10-K of uniQure N.V.;

2.                                      Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a
material fact necessary to make the statements made, in light of the circumstances under which such statements were made,
not misleading with respect to the period covered by this report;

3.                                      Based on my knowledge, the financial statements, and other financial information included in this report, fairly
present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for,
the periods presented in this report;

4.                                 The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls
and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting
(as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)                            Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be
designed under our supervision, to ensure that material information relating to the registrant, including its consolidated
subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being
prepared;

(b)                            Designed such internal control over financial reporting, or caused such internal control over financial reporting to
be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the
preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)                             Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our
conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this
report based on such evaluation; and

(d)                            Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during
the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has
materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.                                 The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal
control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or
persons performing the equivalent functions):

(a)                            All significant deficiencies and material weaknesses in the design or operation of internal control over financial
reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report
financial information; and

(b)                            Any fraud, whether or not material, that involves management or other employees who have a significant role in
the registrant’s internal control over financial reporting.

By: /s/ MATTHEW KAPUSTA

Matthew Kapusta
Chief Executive Officer
(Principal Executive Officer)
February 28, 2024

 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
Exhibit 31.2

Certification of Chief Financial Officer

I, Christian Klemt, certify that:

1.                                      I have reviewed this Annual Report on Form 10-K of uniQure N.V.;

2.                                      Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a
material fact necessary to make the statements made, in light of the circumstances under which such statements were made,
not misleading with respect to the period covered by this report;

3.                                      Based on my knowledge, the financial statements, and other financial information included in this report, fairly
present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for,
the periods presented in this report;

4.                                 The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls
and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting
(as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)                            Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be
designed under our supervision, to ensure that material information relating to the registrant, including its consolidated
subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being
prepared;

(b)                            Designed such internal control over financial reporting, or caused such internal control over financial reporting to
be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the
preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)                             Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our
conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this
report based on such evaluation; and

(d)                            Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during
the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has
materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.                                 The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal
control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or
persons performing the equivalent functions):

(a)                            All significant deficiencies and material weaknesses in the design or operation of internal control over financial
reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report
financial information; and

(b)                            Any fraud, whether or not material, that involves management or other employees who have a significant role in
the registrant’s internal control over financial reporting.

By: /s/ CHRISTIAN KLEMT

Christian Klemt
Chief Financial Officer
(Principal Financial Officer)
February 28, 2024

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350
AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with this Annual Report of uniQure N.V. (the “Company”) on Form 10-K for the period ended December 31,
2023, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, Matthew
Kapusta, Chief Executive Officer, and Christian Klemt, Chief Financial Officer of the Company, hereby certify, pursuant to
18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1                                                   the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of
1934; and

2                                                   the information contained in the Report fairly presents, in all material respects, the financial condition and
results of operations of the Company.

By: /s/ MATTHEW KAPUSTA

Matthew Kapusta
Chief Executive Officer
(Principal Executive Officer)
February 28, 2024

By: /s/ CHRISTIAN KLEMT

Christian Klemt
Chief Financial Officer
(Principal Financial Officer)
February 28, 2024

A signed original of this written statement required by Section 906 has been provided to uniQure N.V. and will be retained
by uniQure N.V. and furnished to the SEC or its staff upon request.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
uniQure N.V.

COMPENSATION CLAWBACK POLICY

Exhibit 97.1

The Board of Directors (the “Board”) of uniQure N.V., a public company with limited liability (naamloze
vennootschap)  incorporated  under  the  laws  of  the  Netherlands  (the  “Company”),  has  adopted  a  Compensation
Clawback Policy (this “Policy”) as described below.  This Policy was originally effective on December 8, 2021
(“Effective Date”)  and  has  been  amended  and  restated  as  of  December  1,  2023.  Capitalized  terms  used  in  this
Policy and not previously defined are included in Sections A.6 and C.2.

A.

1.

Dodd Frank Compensation Clawback Due to Accounting Restatement

In  the  event  the  Company  is  required  to  prepare  an  Accounting  Restatement  after  the  Dodd  Frank
Effective Date, the Company shall reasonably promptly recover from its Executive Officers the amount of
any erroneously awarded Incentive-Based Compensation that is Received by any such Executive Officer
(a)  during  the  Recovery  Period  and  (b)  on  or  after  the  Dodd  Frank  Effective  Date.    The  amount  of
erroneously  Received  Incentive-Based  Compensation  will  be  the  excess  of  the  Incentive-Based
Compensation Received by such Executive Officer (whether in cash or shares) based on the erroneous data
in the original financial statements over the Incentive-Based Compensation (whether in cash or in shares)
that  would  have  been  Received  by  the  Executive  Officer  had  such  Incentive-Based  Compensation  been
based  on  the  restated  results,  without  respect  to  any  tax  liabilities  incurred  or  paid  by  the  Executive
Officer.  This Section A covers all persons who are Executive Officers at any time during the Recovery
Period for which Incentive-Based Compensation is Received or during the performance period applicable
to such Incentive-Based Compensation.  Subsequent changes in an Executive Officer’s employment status,
including  retirement  or  termination  of  employment,  do  not  affect  the  Company’s  right  to  recover
Incentive-Based  Compensation  pursuant  to  this  Section  A.    Recovery  of  any  erroneously  awarded
compensation under this Section A is not dependent on fraud or misconduct by any Executive Officer in
connection with an Accounting Restatement.

2.

No  recovery  shall  be  required  under  this  Section A  if  any  of  the  following  conditions  are  met  and  the
Committee determines that, on such basis, recovery would be impracticable:

a)

b)

the direct expense paid to a third party to assist in enforcing this Policy would exceed the amount
to be recovered; provided that, prior to making a determination that it would be impracticable to
recover  any  Incentive-Based  Compensation  based  on  the  expense  of  enforcement,  the  Company
shall  (i)  have  made  a  reasonable  attempt  to  recover  the  Incentive-Based  Compensation,  (ii)  have
documented such reasonable attempts to recover, and (iii) provide the documentation to Nasdaq;

recovery would violate home country law where that law was adopted prior to November 28, 2022;
provided  that,  prior  to  making  a  determination  that  it  would  be  impracticable  to  recover  any
Incentive-Based  Compensation  based  on  a  violation  of  home  country  law,  the  Company  shall  (i)
have obtained an opinion of

Page 1 of 6

home country counsel, acceptable to Nasdaq, that recovery would result in such violation, and (ii)
provide a copy of such opinion to Nasdaq; or

c)

recovery  would  likely  cause  an  otherwise  tax-qualified  retirement  plan,  under  which  benefits  are
broadly available to employees, to fail to meet the requirements of Section 401(a)(13) or Section
411(a)  of  the  Internal  Revenue  Code  of  1986,  as  amended  (the  “Code”),  and  U.S.  Treasury
regulations promulgated thereunder.

The Company shall make all required disclosures and filings with Securities and Exchange Commission
(the “SEC”) and the Nasdaq Stock Market LLC (“Nasdaq”) with respect to this Section A in accordance
with  the  applicable  requirements  of  the  SEC  and  Nasdaq,  and  any  other  requirements  applicable  to  the
Company, including the disclosures required in connection with SEC filings.

To  the  extent  the  Applicable  Rules  require  recovery  of  Incentive-Based  Compensation  in  additional
circumstances besides those specified in this Section A, nothing in this Policy shall be deemed to limit or
restrict  the  right  or  obligation  of  the  Company  to  recover  Incentive-Based  Compensation  to  the  fullest
extent required by the Applicable Rules.

For Incentive-Based Compensation based on the Company’s stock price or total shareholder return, where
the  amount  of  erroneously  awarded  compensation  is  not  subject  to  mathematical  recalculation  directly
from  the  information  in  the  Accounting  Restatement,  (a)  the  amount  shall  be  based  on  the  Company’s
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 (b) the Company shall maintain
documentation  of  the  determination  of  that  reasonable  estimate  and  provide  such  estimate  to  the  SEC
and/or Nasdaq as required by the Applicable Rules.

3.

4.

5.

6.

For purposes of this Policy, the following terms have the following meanings:

a)

b)

c)

d)

“Accounting  Restatement”  means  that  the  Company  is  required  to  prepare  an  accounting
restatement  due  to  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 (i) that is material to the previously issued financial
statements,  or  (ii)  that  would  result  in  a  material  misstatement  if  the  error  were  corrected  in  the
current period or left uncorrected in the current period.

“Applicable  Rules”  means  Section  10D  of  the  Exchange  Act  and  Rule  10D-1  promulgated
thereunder,  and  Listing  Rule  5608  of  the  Listing  Rules  of  The  Nasdaq  Stock  Market  LLC
(“Nasdaq”).

“Committee” means the Compensation Committee of the Board.

“Dodd Frank Effective Date” means October 2, 2023.

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e)

f)

g)

h)

i)

“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  significant  policy-making  functions  for  the  Company.  The
identification  of  an  executive  officer  for  the  purposes  of  this  Policy  shall  include  each  executive
officer  who  is  or  was  identified  as  such  pursuant  to  Item  401(b)  of  Regulation  S-K  (17  CFR
§229.401(b)).

“Financial Reporting Measures” means measures that are determined and presented in accordance
with the accounting principles used in preparing the Company’s financial statements, any measures
that are derived wholly or in part from such measures, and share price and total shareholder return.

“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.      Incentive-Based
Compensation  does  not  include,  among  other  forms  of  compensation,  equity  awards  that  vest
exclusively  upon  completion  of  a  specified  employment  period,  without  any  performance
condition, and bonus awards that are discretionary or based on subjective goals or goals unrelated
to Financial Reporting Measures.

“Received” – Incentive-Based Compensation is deemed “Received” for the purposes of this Policy
in  the  Company’s  fiscal  period  during  which  the  Financial  Reporting  Measure  applicable  to  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.

“Recovery  Period”  means  the  three  completed  fiscal  years  immediately  preceding  the  date  on
which the Company is required to prepare an Accounting Restatement, which date is the earlier of
(i)  the  date  the  Board,  a  committee  of  the  Board,  or  the  officer  or  officers  of  the  Company
authorized to take such action if Board action is not required, concludes, or reasonably should have
concluded, that the Company is required to prepare an Accounting Restatement or (ii) a date that a
court,  regulator  or  other  legally  authorized  body  directs  the  Company  to  prepare  an  Accounting
Restatement.

B.

1.

Compensation Clawback Due to a Fault-Based Accounting Restatement

In  addition  to  (and  without  limiting)  the  provisions  of  Section  A  above,  in  the  event  the  Company  is
required  to  prepare  an  Accounting  Restatement  after  the  Effective  Date,  the  Board  may  take,  in  its
discretion,  such  action  as  it  deems  necessary  to  recover  from  any  Covered  Person  the  Incentive
Compensation  that  represents  the  excess  of  what  was  paid  to  or  received  by  such  Covered  Person  over
what would have been paid to or received by such Covered Person under the Accounting Restatement, as
determined by the Board in its sole discretion.  “Covered Person” means any Executive Officer and any
other current or former

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2.

3.

C.

1.

employee of the Company who received Incentive Compensation from the Company during the Recovery
Period.

This  Section  B  will  apply  to  any  Covered  Person  who  the  Board,  in  its  sole  discretion,  determines
committed any act or omission that contributed to the circumstances requiring the Accounting Restatement
and which involved any of the following: (a) willful misconduct or wrongdoing or a willful violation of
any  of  the  Company’s  rules  or  of  any  applicable  legal  or  regulatory  requirements  in  the  course  of  the
Covered  Person’s  employment  by,  or  otherwise  in  connection  with,  the  Company;  (b)  a  breach  of  a
fiduciary duty to the Company or its shareholders by the Covered Person; or (c) fraud in the course of the
Covered Person’s employment by, or otherwise in connection with, the Company.

To  the  extent  that  the  Company  is  entitled  to  recover  any  Incentive  Compensation  that  is  granted  to  a
Covered Person pursuant to this Section B, if determined by the Board, such amounts shall be recovered
net of any withholdings or taxes paid by or on behalf of the Covered Person.

Compensation Clawback Due to Detrimental Conduct

If the Board determines that a Covered Employee has engaged in Detrimental Conduct after the Effective
Date, all or a portion of any Incentive Compensation that has been granted or paid by the Company to such
Covered  Employee  after  the  adoption  of  this  Policy  may  be  subject  to  clawback  as  determined  by  the
Board to the extent such compensation was granted or paid during the 1-year period preceding the date of
such Detrimental Conduct or any time thereafter.

2.

For purposes of this Policy, the following terms have the following meanings:

a)

“Covered Employee”  means  any  Executive  Officer  and  any  other  current  or  former  employee  of
the  Company  who  received  Incentive  Compensation  from  the  Company  during  the  Recovery
Period.

b)

“Detrimental Conduct” means:

(i)

failure  by  a  Covered  Employee  to  comply  with  the  Company’s  policies  and

procedures, including the Code of Business Conduct and Ethics and human resource policies;

(ii)

the violation of any law or regulation by a Covered Employee; or

(iii)

engaging in willful misconduct (including, but not limited to, bribery or other illegal

acts) or fraud by a Covered Employee;

provided  that,  in  the  case  of  each  of  the  foregoing,  the  Board  reasonably  determines  that  the
conduct has resulted, or is likely to result, in a material adverse impact on the Company’s financial
results, operations or reputation.

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c)

“Incentive  Compensation”  means  any  compensation  of  a  Covered  Employee,  (a)  excluding  base
salary or perquisites constituting reimbursement for actual expenses (e.g., payments for relocation
expenses),  and  (b)  including  (i)  all  equity  compensation  and  (ii)  all  bonuses  and  other  cash
incentive compensation.

Administration; Indemnification

This  Policy  shall  be  administered  by  the  Board  and  Section A  will  be  administered  consistent  with  the
Applicable  Rules.    All  references  in  this  Policy  to  the  “Board”  shall  mean  the  Company’s  Board  of
Directors  or  any  duly  established  committee  thereof.    The  Board  has  the  sole  authority  to  construe,
interpret  and  implement  this  Policy,  and  to  make  any  determination  necessary  or  advisable  in
administering  this  Policy.    Any  determinations  of  the  Board  under  this  Policy  shall  be  conclusive  and
binding  on  the  Company  and  the  applicable  Executive  Officer,  Covered  Person,  or  Covered  Employee.
 The  determinations  of  the  Board  need  not  be  uniform  with  respect  to  each  Executive  Officer,  Covered
Person, or Covered Employee.

In the event that the Board determines that this Policy should apply, to the extent permitted by applicable
law, the Company shall, as determined by the Board in its sole discretion, take any such actions as it deems
necessary  or  appropriate  to  recover  Incentive-Based  Compensation  or  Incentive  Compensation.    The
actions may include, without limitation (and as applicable):

D.

1.

2.

a)

b)

c)

d)

forfeit, reduce or cancel any Incentive-Based Compensation or Incentive Compensation (whether
vested or unvested) that has not been distributed or otherwise settled;

seek  recovery  of  any  Incentive-Based  Compensation  or  Incentive  Compensation  that  was
previously paid to the Executive Officer, Covered Person, or Covered Employee;

seek recovery of any amounts realized on the vesting, exercise, settlement, sale, transfer, or other
disposition of any equity-based Incentive-Based Compensation or Incentive Compensation;

recoup  any  amount  in  respect  of  Incentive-Based  Compensation  or  Incentive  Compensation  that
was  contributed  or  deferred  to  a  plan  that  takes  into  account  Incentive-Based  Compensation  or
including  deferred
Incentive  Compensation 
compensation plans, and supplemental executive retirement plans, and insurance plans to the extent
otherwise  permitted  by  applicable  law,  including  Section  409A  of  the  Code)  and  any  earnings
accrued on such Incentive-Based Compensation or Incentive Compensation;

tax-qualified  plans,  but 

(excluding  certain 

e)

offset, withhold, eliminate or cause to be forfeited any amount that could be paid or awarded to the
Executive Officer, Covered Employee or Covered Person after the date of determination; and

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3.

4.

5.

6.

f)

take any other remedial and recovery action permitted by law, as determined by the Committee.

The  Board  may  amend  this  Policy  from  time  to  time  in  its  discretion,  subject  to  any  limitations  under
applicable  law  or  listing  standards,  including  the  Applicable  Rules.    Without  limiting  the  forgoing,  the
Board may amend this Policy as it deems necessary to reflect any amendment of the Applicable Rules or
regulations or guidance issued under the Applicable Rules

Any right of recoupment under this Policy, including each Section hereof, is in addition to, and not in lieu
of, (a) any other remedies or rights that may be available to the Company pursuant to (i) the Company’s
equity plan or any successor plan thereto or the Company’s annual bonus plan or any other incentive plan
or  agreement  of  the  Company  or  any  of  its  subsidiaries,  (ii)  the  terms  of  any  recoupment  policy  or
provision in any employment agreement, compensation agreement or arrangement, or other agreement, or
(iii)  any  other  Section  of  this  Policy,  or  (b)  any  other  legal  remedies  available  to  the  Company  under
applicable law.

The Company shall not indemnify any Executive Officer, Covered Employee or Covered Person against
the  loss  of  previously  awarded  Incentive-Based  Compensation  or  Incentive  Compensation  under  this
Policy.

If any provision of this Policy shall be held illegal or invalid for any reason, such illegality or invalidity
shall not affect the remaining parts of this Policy, but this Policy shall be construed and enforced as if the
illegal or invalid provision had never been included in this Policy.

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